TWI797849B - Knapsack weeding device - Google Patents

Abstract

A knapsack weeding device includes a connecting piece, a transmission piece, a cutting piece, two extension pieces, and two sled-shaped movable pieces. The transmission piece is connected to the connection piece, the cutting piece is connected to the transmission piece, and the two extension pieces are respectively connected to two of the connection piece. The two extension pieces can rotate relative to the connecting piece, and the two sled-shaped movable pieces are respectively connected to the two extension pieces. In this way, the knapsack weeding device can greatly reduce the labor burden of the operator, making the operator more labor-saving and fast weeding, and the manufacturing cost is low. 代表圖 本案指定代表圖：圖1 本代表圖之符號簡單說明： 10：背式除草裝置 12：連接桿 121：第一端 122：第二端 14：驅動件 16：結合件 18：傳動件 20：切割件 22：延伸件 24：橇形活動件 241：中空套管 242：活動軸 243：橇形件 26：卡合件

Description

Back weeding device

The invention relates to the technical field of weeding machinery, in particular to a back-type weeding device.

Weeders are widely used as a common agricultural machine, and large-scale weeders are suitable for large-scale weeding, such as tractor-driven weeding equipment, with high weeding efficiency and remarkable effect. However, some small-scale operation areas, such as greenhouses, cannot be entered by large-scale machinery, and can only rely on small-scale weeding equipment, and the advantages of backpack-type weeding machines are emerging.

Existing knapsack weeders use an internal combustion engine or a battery as a power source. Generally, a connecting rod is used to drive the weeding head to rotate to achieve weeding. No matter whether the internal combustion engine or the battery is used as the power, the operator will carry a heavy load and labor intensity during actual operation.

Therefore, the main purpose of the present invention is to provide a back type weeding device to solve the above problems.

The purpose of the present invention is to provide a back-type weeding device, which can greatly reduce the labor burden of the operator, so that the operator can weed more quickly and labor-savingly, and the manufacturing cost is low.

In order to achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a back-type weeding device. The back-type weeding device includes a combination part, a transmission part, a cutting part, at least two extension parts and at least two sled-shaped movable parts.

The transmission part is connected to the combination part. The cutting element is connected to the transmission element. At least two extension pieces are respectively connected to two sides of the combination piece, and the at least two extension pieces can rotate relative to the combination piece. At least two sled movable parts are respectively connected to at least two extension parts.

In some embodiments, the back-type weeding device may further include a connecting rod and a driving member, the connecting rod has a first end and a second end opposite to each other, the driving device is connected to the first end of the connecting rod, and the combination A piece is connected to the second end of the connecting rod.

In some embodiments, the back-type weeding device may further include a locking part connected to the connecting rod.

In some embodiments, each of the sled movable parts includes a hollow sleeve, a movable shaft and a sled, the movable shaft is connected in the hollow sleeve, the extension is connected to the movable shaft through the hollow sleeve, and the sled The shaped piece is connected to the bottom of the movable shaft.

In some embodiments, each of the sled movable parts further includes an upper bearing, a lower bearing, an upper pin, and a lower pin. The upper pin is located on the upper and outer sides of the hollow sleeve and is detachably connected to the movable shaft. The bolt is located on the lower outer side of the hollow sleeve and is detachably connected to the movable shaft, the upper bearing is located on the upper inner side of the hollow sleeve and is movably connected to the movable shaft, and the lower bearing is located on the lower side of the hollow sleeve. inside, and is movably connected to the movable shaft.

In some embodiments, both the upper bearing and the lower bearing are ball bearings. It can also be self-lubricating bearings, solid bearings, sliding sleeves, etc.

In some embodiments, the sled is shaped as a hook.

In some embodiments, the height of the sled movable member is adjustable.

In some embodiments, the at least two skid-shaped movable parts are located on the outside of the cutting part when viewed from the back-type weeding device toward the cutting part.

In some embodiments, the bottom of the sled is lower than the bottom of the cutter.

In one embodiment, the back-type weeding device further includes three bearings and a circular ring structure, the three bearings are respectively arranged on the outer walls of the two hollow sleeves and the tail end of the joint, and each bearing is provided with a ring U-shaped groove, the ring structure is embedded in the annular U-shaped grooves of the three bearings.

Therefore, by using the back-type weeding device provided by the present invention, the labor burden of the operator can be greatly reduced through the arrangement of the extension member and the sled-shaped movable member, so that the operator can weed more labor-savingly and quickly, and the manufacturing cost is low.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the preferred embodiments are specifically cited below, together with the drawings, and detailed descriptions are as follows.

Specific structural and functional details disclosed herein are representative only and are for purposes of describing example embodiments of the invention. This invention may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

In describing the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or position indicated by "bottom", "inner", "outer" and so on are based on the orientation or position shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying No device or assembly must have a particular orientation, be constructed, and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Additionally, the term "comprise" and any variations thereof, are intended to cover a non-exclusive inclusion.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the exemplary embodiments. As used herein, the singular forms "a", "an" and "an" are also intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the term "comprises" and/or "comprises" as used herein specifies the presence of stated features, integers, steps, operations, units and/or components and does not exclude the presence or addition of one or more Other features, integers, steps, operations, units, components and/or combinations thereof.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a perspective view of the back-type weeding device 10 of the present invention, and FIG. 2 is a perspective view of the extension 22 of the back-type weeding device 10 in FIG. 1 after rotation. In order to achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a back-type weeding device 10 . As shown in the figure, the back-type weeding device 10 includes a connecting rod 12 , a driving member 14 , a coupling member 16 , a transmission member 18 , a cutting member 20 , two extension members 22 and two sled movable members 24 . Further, the connecting rod 12 has a first end 121 and a second end 122 opposite to each other.

The driving member 14 is connected to the first end 121 of the connecting rod 12 for driving the cutting member 20 to rotate for weeding operation. However, this case is not limited to this. The driving member 14 can also be arranged at any place, as long as it can provide power to make the cutting member 20 rotate.

The connecting member 16 is connected to the second end 122 of the connecting rod 12 . The transmission member 18 is connected to the coupling member 16 and the connecting rod 12 . The cutting element 20 is connected to the transmission element 18 . The driving member 14 may be connected to the transmission member 18 through a circuit inside the connecting rod 12 , so as to drive the cutting member 20 to rotate. In one embodiment, the transmission member 18 may be a transmission member such as a transmission shaft, and the cutting member 20 may be a cutting member such as a cutting blade, a tendon rope, or a cutting rod.

The two extension pieces 22 are respectively connected to the left and right sides of the connecting piece 16 , and each extension piece 22 can rotate relative to the connecting piece 16 . Specifically, the two extension pieces 22 are connected to the outside of the combination piece 16 . As an example, as shown in FIG. 1 and FIG. 2 , the extension piece 22 can be rotated in the horizontal direction relative to the coupling piece 16 to adapt to various situations and meet usage requirements.

The two sled movable parts 24 are respectively connected to the two extension parts 22 . Specifically, the sled-shaped movable part 24 is connected to an end of the extension part 22 away from the coupling part 16 , and the sled-shaped movable part 24 itself is movable and rotatable. When the operator uses the back-type weeding device 10 to carry out weeding operations, the sled-shaped movable part 24 can abut against the ground where the lawn is located, and the support force provided by the ground can reduce the labor burden of the operator, making it easier for the operator to weed. It is labor-saving and fast, and when turning, because the sled-shaped movable part 24 is in point contact with the ground, it is very convenient and labor-saving to turn. In one embodiment, when looking down from the back type weeding device 10 towards the cutting member 20, the two sled movable parts 24 may be located on the outside of the cutting member 20, so as to prevent the sled movable parts 24 from touching the cutting member when rotating. 20. In one embodiment, the bottom of the skid-shaped movable part 24 may be lower than the bottom of the cutting part 20, so that the ground can provide better supporting force.

In an embodiment, as shown in FIG. 2 , the back-type weeding device 10 may further include an engaging member 26 . The engaging part 26 is connected to the connecting rod 12, so that the operator can clamp the back type weeding device 10 on the waist, back and other places, so as to facilitate the mobile weeding operation.

In one embodiment, as shown in FIG. 3 , each sledge-shaped movable member 24 includes a hollow sleeve 241 , a movable shaft 242 and a sledge-shaped member 243 . The movable shaft 242 is connected in the hollow sleeve 241 and is rotatable. The extension piece 22 is connected to the movable shaft 242 through the hollow sleeve 241 . The skid-shaped piece 243 is connected to the bottom of the movable shaft 242, and the skid-shaped piece 243 may be in point contact with the ground.

In one embodiment, as shown in FIG. 4 , each sled-shaped movable member 24 further includes an upper bearing 244 , a lower bearing 245 , an upper pin 246 and a lower pin 247 . The upper bearing 244 is located on the inner side of the hollow sleeve 241 and is movably connected to the movable shaft 242 ; the lower bearing 245 is located on the lower inner side of the hollow sleeve 241 and is movably connected to the movable shaft 242 . Through the setting of the upper bearing 244 and the lower bearing 245, the rotation of the movable shaft 242 is facilitated, and the overall stability is stronger. The upper bearing 244 and the lower bearing 245 can be ball bearings, roller bearings, self-lubricating bearings, solid bearings, sliding sleeves, etc., which can be selected according to actual conditions. The upper pin 246 is located on the upper outer side of the hollow sleeve 241 and is detachably connected to the movable shaft 242 . The lower pin 247 is located on the lower outer side of the hollow sleeve 241 and is detachably connected to the movable shaft 242 . The height of the sled movable part 24 can be adjusted by setting the upper pin 246 and the lower pin 247 to adapt to various usage situations. However, the present case is not limited thereto, and the height of the sled movable part 24 can also be adjusted in other ways to adapt to various environments.

In one embodiment, as shown in FIG. 5 , the shape of the sled 243 is a hook shape. The shape of the hook can be understood as a beveled pry shape, an arc, and the like. Preferably, as shown in FIG. 6 , the shape of the sledge 243 a is generally still in the shape of a hook, and a plurality of rollers 30 are mounted on the sledge 243 a for easy movement. Further, as shown in FIG. 7 , the shape of the sledge 243b is generally still in the shape of a hook, and a plurality of pulleys 32 are installed on the sledge 243b, and a plurality of pulleys 32 are connected together by crawlers 34 to improve stability. On the whole, the shape of the sled 243 is generally in the shape of a hook, and the use effect is better. Later, the sled 243 can be changed according to various usage requirements, such as installing other components on the hook-shaped sled 243, so as to To meet the needs of use.

In one embodiment, as shown in FIG. 8 , the back-type weeding device 10 can also add a bearing 36 to the outer wall of the hollow sleeve 241 to reduce the damage caused by friction with the mowing boundary (such as walls, flower beds, landscape facilities, etc.) , It can also avoid the risk of the blade cutting and colliding with foreign objects.

Further referring to FIG. 9 and FIG. 10 , a bearing 36 is also provided at the tail end of the coupling member 16 , and each bearing 36 is provided with an annular U-shaped groove 362 . Back weeding device 10 also includes reinforcement 38 and ring structure 40 . The circular ring structure 40 is embedded in the annular U-shaped grooves 362 of the three bearings 36 , and the stability and rotation of the circular ring structure 40 are ensured through a triangular positioning manner. The ring structure 40 can play the role of confirming the cutting boundary of the cutting part 20, and the ring structure 40 is rotatable, therefore, when the ring structure 40 collides with an object (such as a tree, a wall, etc.), the resulting is rolling friction, which can reduce damage to objects, as well as damage to the ring structure 40 itself. The reinforcing member 38 is L-shaped and abuts against the ring structure 40 to prevent the ring structure 40 from falling off from the bearing 36 .

It should be added that the above-mentioned two extension pieces 22 and two sled-shaped movable pieces 24 refer to at least two. In other words, the number of sled-shaped movable pieces 24 and the extension pieces 22 can be adjusted according to actual needs.

In summary, the back-type weeding device 10 provided by the present invention can greatly reduce the labor burden of the operator through the setting of the extension piece 22 and the skid-shaped movable piece 24, making the operator weed more labor-saving and faster, and Low manufacturing cost.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the claimed patent scope of the present invention.

10: Back weeding device 12: connecting rod 121: first end 122: second end 14: Driver 16: Combined parts 18: Transmission parts 20: Cutting pieces 22: Extension 24: Skid-shaped movable parts 241: hollow casing 242: Active axis 243, 243a, 243b: skids 244: upper bearing 245: Lower bearing 246: Upper pin 247: Bottom pin 26: Fastening parts 30:Roller 32: Pulley 34: track 36: Bearing 362: U-shaped groove 38: reinforcement 40: Ring structure

The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation of the present application, and explain the principle of the present application together with the text description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts. In the schema: [ Fig. 1 ] is a three-dimensional schematic view of the back-type weeding device of the present invention. [Fig. 2] is a three-dimensional schematic view of the extension part of the back-type weeding device in Fig. 1 after rotation. [Fig. 3] is an enlarged schematic view of A in Fig. 2. [Fig. 4] is a schematic cross-sectional view of a skid-shaped movable part. [ Fig. 5 ] is a schematic structural view of an embodiment of the skid of the present invention. [ Fig. 6 ] is a schematic structural view of another embodiment of the skid of the present invention. [ Fig. 7 ] is a schematic structural view of another embodiment of the skid of the present invention. [Fig. 8] is a structural schematic diagram of adding bearings to the back-type weeding device of the present invention. [Fig. 9] is a structural schematic diagram of adding a ring structure to the back-type weeding device of the present invention. [Fig. 10] is a structural schematic diagram of another perspective of Fig. 9.

10: Back weeding device

12: connecting rod

121: first end

122: second end

14: Driver

16: Combined parts

18: Transmission parts

20: Cutting pieces

22: Extension

24: Skid-shaped movable parts

241: hollow casing

242: Active axis

243: skid

26: Fastening parts

Claims (9)

A back-type weeding device, comprising: a combination piece; a transmission piece connected to the combination piece; a cutting piece connected to the transmission piece; two extension pieces connected to both sides of the combination piece respectively, and the two extension pieces The part can rotate relative to the combination part; two sled-shaped movable parts are respectively connected to the two extension parts; wherein, each of the sled-shaped movable parts includes a hollow sleeve, a movable shaft and a sled-shaped part, and the movable shaft is connected to the hollow In the sleeve, the extension piece is connected to the movable shaft through the hollow sleeve, and the skid is connected to the bottom of the movable shaft. The back-type weeding device according to claim 1, further comprising a connecting rod and a driving member, the connecting rod has a first end and a second end opposite to each other, the driving member is connected to the first end of the connecting rod , the joint is connected to the second end of the connecting rod. The back-type weeding device as described in claim 1, wherein the back-type weeding device further includes three bearings and a ring structure, and the three bearings are respectively arranged on the outer walls of the two hollow sleeves and the tail end of the joint, Each of the bearings is provided with an annular U-shaped groove, and the annular structure is embedded in the annular U-shaped grooves of the three bearings. The back-type weeding device according to claim 1, wherein each sled-shaped movable part further includes an upper bearing, a lower bearing, an upper pin, and a lower pin, and the upper pin is located on the upper and outer sides of the hollow sleeve, and is detachably Connected to the movable shaft, the lower bolt is located on the lower outer side of the hollow sleeve and is detachably connected to the movable shaft, the upper bearing is located on the upper inner side of the hollow sleeve and is movably connected to the movable shaft, the lower The bearing is located on the lower inner side of the hollow sleeve and is movably connected to the movable shaft. The back type weeding device as claimed in claim 4, wherein both the upper bearing and the lower bearing are ball bearings. The back type weeding device as claimed in claim 1, wherein the sled is shaped like a hook. The back-type weeding device as claimed in claim 1, wherein the height of the sled-shaped movable part is adjustable. The back-type weeding device as claimed in claim 1, wherein, viewed from the back-type weeding device toward the cutting part, the two skid-shaped movable parts are located outside the cutting part. The back-type weeding device as claimed in claim 1, wherein the bottom of the skid-shaped movable part is lower than the bottom of the cutting part.

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