WO2016041101A1 - 割草机用除草盘 - Google Patents

割草机用除草盘 Download PDF

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Publication number
WO2016041101A1
WO2016041101A1 PCT/CN2014/000985 CN2014000985W WO2016041101A1 WO 2016041101 A1 WO2016041101 A1 WO 2016041101A1 CN 2014000985 W CN2014000985 W CN 2014000985W WO 2016041101 A1 WO2016041101 A1 WO 2016041101A1
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WIPO (PCT)
Prior art keywords
straw
connecting rod
disposed
lawn mower
grass
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PCT/CN2014/000985
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English (en)
French (fr)
Inventor
华杰
华世民
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华杰
华世民
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Application filed by 华杰, 华世民 filed Critical 华杰
Publication of WO2016041101A1 publication Critical patent/WO2016041101A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/416—Flexible line cutters

Definitions

  • the invention relates to a weeding disc for a lawn mower.
  • the herbicidal discs of the existing lawn mower are mostly composed of a turntable and a weeding cord wound around the turntable.
  • the center of the turntable is provided with an assembly hole for connecting with the power output end of the lawn mower, and the turntable can be mowing.
  • the power mechanism of the machine is driven to rotate at a high speed, and the inside of the turntable is provided with a coiled shaft of the weeding cord.
  • the outer wall of the turntable is provided with a stringing hole.
  • the weeding cord is directly wound clockwise from the front end to the spool of the disc, and finally weeding.
  • the front end and the end of the rope are placed at a proper length through the stringing hole of the turntable to be exposed outside the turntable. Under the high-speed rotation of the turntable, the weeding rope is driven to rotate at a high speed, thereby achieving the purpose of weeding.
  • this method of coiling often causes the length of the weeding cords exposed at both ends of the turntable to be unequal in length, thereby reducing the ability of weeding; the weeding cord is easily separated during the weeding process under the high-speed rotation of the turntable. Or cut, when the weeding rope in the turntable is used up, it is impossible or difficult to replace the new weeding rope.
  • the technical problem to be solved by the present invention is to provide a lawn mower for a lawn mower having a simple structure and at the same time being very convenient and very simple to install and replace a mowing cord.
  • a lawn mower for a lawn mower comprising a body, a straw rope connected to the body, and a first body disposed on the body for connecting and fixing the grass rope
  • the grass rope connecting structure is characterized in that: the first straw connecting structure comprises:
  • first straw threading hole disposed on the outer wall of the body, the first straw threading hole allows the double-strand straw rope to be bent after passing;
  • the first end of the connecting rod is located inside the body, the second end of the connecting rod is a free end, the body is provided with a strip-shaped perforation, and the second end of the connecting rod is movably disposed
  • the strip-shaped perforation is partially exposed outside the body, and the first straw threading hole is in communication with the strip-shaped perforation, and the bent double-strand straw rope is threaded through the first straw rope After the hole, the bent portion of the straw rope can be sleeved on the second end of the connecting rod;
  • a first rotating shaft is disposed inside the body, and the first rotating shaft is coupled to a middle portion of the connecting rod, and the connecting rod is rotatable around the first rotating shaft by an external force at a free end thereof;
  • the elastic member is disposed inside the body, the first end of the elastic member is opposite to the inner portion of the body, and the second end of the elastic member is opposite to the first end of the connecting rod.
  • the outer wall of the present body is provided with an outwardly convex boss, and the first straw threading hole is disposed on the boss.
  • the inner wall of the first straw threading hole is provided with a track groove matched with the grass rope, so that when the grass rope is installed or replaced, the first straw threading hole is very convenient to penetrate the grass rope. There will be no slippage.
  • the boss is provided with an active slot corresponding to the strip-shaped perforation to allow the second end of the connecting rod to freely rotate therein, and the arrangement of the movable slot protects the second of the connecting rod
  • the end of the first straw cord threading hole is disposed toward the outer circumference of the body, and the outlet position of the movable groove on the boss is disposed toward the center of the body. This arrangement is more convenient for mowing the rope. Installation and replacement.
  • the body comprises a circular base and an upper cover fixed on the circular base, and the strip-shaped perforations and the bosses are disposed on the upper cover.
  • the circular base is hollow inside, and a circular concave base is disposed in the circular base for providing a first concave rotating table, and a receiving groove for accommodating the elastic member is disposed under the first concave rotating table.
  • the elastic member is a compression spring
  • the first end of the connecting rod is provided with a connecting post
  • the first end of the compression spring is opposite to the inner wall of the receiving groove
  • the second end of the compression spring is connected to the connecting end.
  • the connecting rod of the first end of the rod is opposite to the first end of the connecting rod.
  • the second end of the connecting rod has a circular arc shape, which facilitates the fitting of the bent portion of the straw.
  • the body is provided with two sets of the aforementioned first grass rope connecting structures, and is symmetrically distributed on the body at 180 degrees.
  • the first straw connecting structure of the above structure can be used for connecting and fixing the double-stranded straw rope after bending.
  • the herbicidal disc for the lawn mower provided by the invention can also be connected and fixed to a single single-strand straw rope, and is also very convenient to be installed and replaced.
  • the specific structure is that the body comprises a circular base with a hollow inside, and is fixed at The upper cover on the circular base, the body is further provided with a second grass rope connection structure for connecting and fixing the grass rope, the second grass rope connection structure comprises:
  • a rocking member a top portion of the rocking member is provided with a convex portion, and the upper cover is provided with a through hole, the convex portion is disposed through the through hole of the upper cover and exposed to the upper cover, and the bottom of the rocking member is arranged in an arc Type, and the curved bottom of the rocking member is provided with a plurality of pressing teeth;
  • the second rotating shaft disposed inside the circular base, the second rotating shaft is coupled to a middle portion of the swinging member, the swinging member is rotatable around the second rotating shaft by an external force at the bottom thereof; and the circular base is provided for setting a second concave turntable of the second rotating shaft, the second rotating shaft is disposed in the second concave turntable and then fixed by the foregoing upper cover;
  • the torsion spring is disposed on the second rotating shaft, the first free end of the torsion spring is opposite to the second concave turntable, and the second free end of the torsion spring is disposed on the rocking member, so that the torsion spring can suppress the foregoing
  • the rocking member rotates along the second axis of rotation.
  • the invention has the advantages that the first straw connecting structure provided by the invention has a simple structure and can be used for connecting and fixing the double-stranded straw rope after bending, and can be installed and replaced very conveniently. Mowing the rope.
  • the second straw connecting structure provided by the invention can also be connected and fixed to a single single strand of straw.
  • FIG. 1 is a schematic perspective view of a herbicidal disc for a lawn mower according to a first embodiment of the present invention.
  • FIG. 2 is a schematic perspective view showing another perspective of a lawn mower for a lawn mower according to a first embodiment of the present invention.
  • FIG 3 is a perspective view of the lawn mower with the upper cover of the mower in the first embodiment of the present invention.
  • FIG 4 is an exploded view of the first straw connecting structure in the first embodiment of the present invention.
  • Fig. 5 is an exploded view of the weeding disc for the lawn mower according to the first embodiment of the present invention.
  • FIG. 6 is a schematic perspective structural view of a weeding disc for a lawn mower according to a second embodiment of the present invention.
  • Figure 7 is an exploded perspective view of a lawn mower for a lawn mower according to a second embodiment of the present invention.
  • Fig. 8 is an exploded perspective view showing another perspective of the weeding disc for the lawn mower according to the second embodiment of the present invention.
  • the herbicidal disc for the lawn mower includes a body and a connecting body composed of an inner hollow circular base 1 and an upper cover 2 fixed on the circular base 1.
  • a central portion of the body is provided with a shaft hole A connected to an output shaft of the external power mechanism.
  • the first straw connecting structure comprises:
  • a first straw threading hole 22 is disposed on the upper cover 2, and the first straw threading hole 22 can allow the double-strand straw rope to pass through, and the specific structure is that the upper cover 2 is provided with an outward a raised boss 21, a first straw threading hole 22 is laterally disposed on the boss 21, and an inlet position of the first straw threading hole 22 is disposed toward the outer circumference of the body, and the first straw threading hole 22 is provided.
  • the inner wall is provided with a track groove 23 matched with the straw rope, and the upper cover 2 is provided with a strip-shaped perforation 24 communicating with the first straw threading hole 22, and the boss 21 is provided with the strip-shaped perforation 24
  • Corresponding movable slot 25, the outlet position of the movable slot 25 is disposed toward the center of the circular base 1;
  • the first end 41 of the connecting rod 4 is located inside the circular base 1, the second end 42 of the connecting rod 4 is a free end, and the second end 42 of the connecting rod has a circular arc shape, and the connecting rod
  • the second end of the 4 is movably disposed in the strip-shaped perforation 24 and partially exposed outside the upper cover 2, and the first straw threading hole 22 is in communication with the strip-shaped perforation 24, and the double-strand after bending
  • the bent portion of the straw 3 can be sleeved on the second end 42 of the connecting rod 4; and the second end of the connecting rod 4 42 is also free to rotate within the movable slot 25 on the aforementioned boss 21, the height of the second end 42 of the connecting rod 4 is not beyond the movable slot 25, so that the movable slot 25 can protect the second end 42 of the connecting rod 4 at Free from outside interference during rotation;
  • the first rotating shaft 5 disposed inside the circular base 1 , the first rotating shaft 5 is disposed in the middle of the connecting rod 4
  • the connecting rod 4 can be rotated around the first rotating shaft 5 under the external force of the connecting rod 4.
  • the circular base 1 is provided with a first concave turntable 11 for setting the first rotating shaft 5, and the first rotating shaft 5
  • the middle portion is disposed in the middle of the connecting rod, the two ends of the first rotating shaft 5 are rotatably disposed in the first concave turntable 11, and the receiving portion 12 for receiving the elastic member is disposed under the first concave rotating table 11;
  • the first end of the connecting rod 4 is provided with a cylindrical connecting post 43
  • the second end of the compression spring 6 is sleeved on the connecting post 43 to ensure the connection between the compression spring 6 and the connecting post 43 .
  • the reliability ensures that the first end of the compression spring 6 reliably abuts the first end of the connecting post 43.
  • two sets of the aforementioned first grass rope connecting structures are disposed on the body, and are symmetrically distributed on the body at 180 degrees.
  • the first straw connecting structure in the embodiment can be used for connecting and fixing the double-stranded straw rope after bending, and the process and principle of installing or replacing the straw rope are as follows:
  • a single-strand straw rope of a required length is folded in three pairs, and the length of the straw rope at both ends after folding is ensured to be the same, and the bent portion 31 which is bent in the middle of the grass rope 3 is folded from the top cover first grass rope
  • the threaded hole 22 is inserted through the entrance, and the bent portion 31 presses the second end 42 of the connecting rod 4, and the second end 42 of the connecting rod 4 is pressed by the bent portion 31 of the straw 3, and is wound around the first
  • the rotating shaft 5 rotates in the strip-shaped perforation 24 of the upper cover toward the center of the upper cover, and at the same time, the second end 42 of the connecting rod 4 also rotates in the movable groove 25 of the boss 21, at this time, the first end of the connecting rod 4 is always Will squeeze the compression spring 6;
  • the second end 42 of the connecting rod 4 is rotated toward the outer circumference of the upper cover.
  • the bent portion 31 bent in the middle of the straw 3 is just placed on the second end 42 of the connecting rod 4, in order to ensure the sleeve.
  • the reliability of the operator can slightly pull the double-stranded straw rope outward.
  • the straw rope 3 is firmly connected and fixed on the first straw connecting structure.
  • the replacement of the straw rope 3 is simpler, and it is only necessary to hold the two free ends of the double-strand straw rope, and the double-strand straw rope is pressed toward the center of the upper lid, and when the grass rope 3 is bent in the middle, the bending portion 31 is bent. After the first straw threading hole 22 and the movable groove 25 are exposed, the bent portion 31 bent in the middle of the straw rope 3 is held by both hands, and pulled out from the outlet position of the movable groove 25, and then replaced with a new one. You can use the straw rope.
  • the lawn mower for the lawn mower of the present embodiment is different from the first embodiment in that the body is further provided with a single strand for connecting and fixing.
  • a second straw connecting structure of the straw rope, the second straw connecting structure comprises:
  • a rocking member 7 the top of the rocking member 7 is provided with a convex portion 71, and the upper cover 2 is provided with a through hole 26,
  • the convex portion 71 is disposed through the through hole 26 of the upper cover and exposed to the upper cover, the bottom of the rocking member is arranged in an arc shape, and the curved bottom portion of the rocking member is provided with a plurality of pressing teeth 72;
  • a second rotating shaft 8 disposed inside the circular base, the second rotating shaft 8 is disposed in a middle portion of the rocking member 7, and the rocking member 7 is rotatable around the second rotating shaft 8 by an external force at the bottom thereof; and the circular shape
  • a second concave turret 14 for arranging the second rotating shaft 8 is disposed in the base.
  • the two ends of the second rotating shaft 8 are disposed in the second concave turret 14 and then fixed by the upper cover 2, in this embodiment, the upper cover 2 is provided with an outwardly protruding gland 27, and the gland 27 is just outside the second concave turntable 14;
  • a torsion spring 9 is disposed on the second rotating shaft 8 , the first free end of the torsion spring 9 is opposite to the second concave turntable 14 , and the second free end of the torsion spring 9 is disposed on the rocking member 7 , thereby The torsion spring 9 can suppress the rotation of the rocking member 7 along the second rotating shaft 8.
  • the body is provided with two sets of the aforementioned two grass rope connecting structures, and is symmetrically distributed on the body at 180 degrees, and the second grass rope connecting structure and the first grass rope connecting structure are separated by 90 degrees.
  • the second straw connecting structure in the embodiment can be used for connecting and fixing the single-strand straw rope.
  • the process and principle of installing or replacing the straw rope are as follows:
  • One end of a single-strand straw 3 of a required length is inserted from the entrance of the second straw threading hole 13 on the circular base 1, and the end of the single-strand straw 3 is pressed against the swinging member. 7 at the bottom, the bottom of the rocking member 7 is pressed by the end of the straw 3, and then rotated around the second shaft 8;
  • the grass rope can be applied to the boss portion 71 at the top of the rocking member 7 during the process of inserting the straw rope into the second straw threading hole 13, so that the grass rope end is made.
  • the portion can smoothly penetrate the second straw threading hole 13 , and when the external force is released from the convex portion 71 on the top of the rocking member 7 , under the action of the upper cover and the torsion spring 9 , the bottom pressing gear 72 of the rocking member 7 will The end of the straw rope 3 is firmly engaged, thereby fixing the single-strand straw rope to the body.
  • two single-strand straw ropes can be connected and fixed on the circular base 1, and the two double-strand straw ropes can be connected and fixed on the upper cover, so that the weeding effect of the whole weeding tray is better.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

一种割草机用除草盘，包括本体、打草绳（3）和第一打草绳连接结构，该第一打草绳连接结构包括：第一打草绳穿线孔（22）；连接杆（4），该连接杆的第一端（41）位于本体内部，连接杆（4）的第二端（42）为自由端，本体上开设有条状穿孔（24），连接杆（4）的第二端（42）活动穿设于条状穿孔（24）内并部分外露于本体之外；第一转轴（5），设置在所述本体内部，所述连接杆（4）能在其自由端（42）受外力作用下绕第一转轴（5）转动；弹性件（6），该弹性件（6）的第一端与所述本体内部相抵，该弹性件（6）的第二端与连接杆（4）的第一端（41）相抵。该第一打草绳连接结构结构简单，可用于连接固定弯折后的双股打草绳，并且能非常方便地安装与更换割草绳。

Description

割草机用除草盘 技术领域
本发明涉及一种割草机用除草盘。
背景技术
现有割草机的除草盘，大多由一转盘及盘绕在转盘内的除草绳组成，转盘的中央设置组装孔，该组装孔用来与割草机的动力输出端连接，转盘可在割草机的动力机构驱动下做高速旋转，而转盘内部设置盘绕除草绳的盘线轴，转盘的外壁开有穿绳孔，除草绳由前端开始直接做顺时针方向一次性盘绕在盘线轴上，最后除草绳的前端和末端留设适当的长度穿过转盘的穿绳孔而外露于转盘外，在转盘高速旋转下，带动除草绳作高速旋转，从而达到除草的目的。
然而这种盘绕的方式常常造成外露于转盘外的两端除草绳长度形成不等长的缺点，进而降低除草的能力；除草绳在转盘高速旋转下进行除草过程中，割草绳的表面容易割裂或割断，当转盘内的除草绳用完以后，无法或很难更换新的除草绳。
发明内容
本发明所要解决的技术问题是针对上述现有技术提供一种结构简单、同时能非常方便、且非常简单地安装与更换割草绳的割草机用除草盘。
本发明解决上述技术问题所采用的技术方案为：一种割草机用除草盘，包括本体、连接在本体上的打草绳和设置在本体上的用于连接并固定打草绳的第一打草绳连接结构，其特征在于：所述第一打草绳连接结构包括：
设置在本体外壁上的第一打草绳穿线孔，该第一打草绳穿线孔能允许弯折后的双股打草绳穿过；
连接杆，该连接杆的第一端位于所述本体内部，所述连接杆的第二端为自由端，所述本体上开设有条状穿孔，所述连接杆的第二端活动穿设于所述条状穿孔内并部分外露于本体之外，第一打草绳穿线孔与所述条状穿孔相连通，弯折后的双股打草绳在穿过所述第一打草绳穿线孔后，打草绳的弯折部能套设在所述连接杆的第二端；
第一转轴，设置在所述本体内部，第一转轴与连接杆的中部连接，所述连接杆能在其自由端受外力作用下绕第一转轴转动；
弹性件，设置在所述本体内部，该弹性件的第一端与所述本体内部相抵，该弹性件的第二端与连接杆的第一端相抵。
优选地，所述本体外壁上设置有向外凸起的凸台，所述第一打草绳穿线孔即设置在该凸台上。
优选地，所述第一打草绳穿线孔的内壁设置有与打草绳配合的轨道槽，这样在安装或更换打草绳时，第一打草绳穿线孔穿入打草绳会非常方便，不会出现打滑现象。
优选地，所述凸台上设置有与所述条状穿孔相对应的、能允许所述连接杆的第二端在其内自由转动的活动槽，活动槽的设置保护了连接杆的第二端不会被外物干扰，所述第一打草绳穿线孔的入口位置朝向本体外周设置，所述凸台上活动槽的出口位置朝向本体中心设置，这种设置方式，更加方便割草绳的安装与更换。
优选地，所述本体包括圆形底座，及固定在圆形底座上的上盖，所述条状穿孔及凸台均设置在上盖上。
优选地，所述圆形底座内部空心，且圆形底座内设置有用于设置第一转轴的第一凹形转台，第一凹形转台下方设置有用于容置弹性件的容纳槽。
优选地，所述弹性件为压缩弹簧，所述连接杆的第一端设置有一连接柱，所述压缩弹簧的第一端与容纳槽内壁相抵，所述压缩弹簧的第二端穿设在连接杆第一端的连接柱上从而与连接杆第一端相抵。
优选地，所述连接杆的第二端呈圆弧形，这样便于打草绳的弯折部的套设。
所述本体上设置有两组前述第一打草绳连接结构，且在本体上呈180度对称分布。
上述结构的第一打草绳连接结构可用于连接固定弯折后的双股打草绳。
本发明提供的割草机用除草盘，还可以连接固定单根单股股打草绳，也非常方便安装和更换，具体结构为：所述本体包括内部为空心的圆形底座，及固定在圆形底座上的上盖，所述本体上还设置有用于连接并固定打草绳的第二打草绳连接结构，该第二打草绳连接结构包括：
设置在圆形底座上的第二打草绳穿线孔：
摇摆件，所述摇摆件顶部设置有凸起部，所述上盖上设置有通孔，所述凸起部穿过上盖的通孔设置且外露于上盖，摇摆件的底部设置呈弧型，且摇摆件的弧型底部设置有多个压齿；
第二转轴，设置在圆形底座内部，第二转轴与摇摆件的中部连接，所述摇摆件能在其底部受外力作用下绕第二转轴转动；而所述圆形底座内设置有用于设置第二转轴的第二凹形转台，第二转轴设置在第二凹形转台内后由前述上盖压制固定；
扭簧，该扭簧穿设在第二转轴上，扭簧的第一自由端与第二凹形转台相抵，扭簧的第二自由端穿设于摇摆件上，从而使扭簧能抑制前述摇摆件沿第二转轴转动。
与现有技术相比，本发明的优点在于：本发明提供的第一打草绳连接结构，结构简单，可用于连接固定弯折后的双股打草绳，并且能非常方便地安装与更换割草绳。另外，本发明提供的第二打草绳连接结构，还能连接固定单根单股股打草绳。
附图说明
图1为本发明实施例一中割草机用除草盘的立体结构示意图。
图2为本发明实施例一中割草机用除草盘另一视角的立体结构示意图。
图3为本发明实施例一中割草机用除草盘上盖移上后的立体图。
图4为本发明实施例一中第一打草绳连接结构的分解图。
图5为本发明实施例一中割草机用除草盘的分解图。
图6为本发明实施例二中割草机用除草盘的立体结构示意图。
图7为本发明实施例二中割草机用除草盘的立体分解图。
图8为本发明实施例二中割草机用除草盘的另一视角的立体分解图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例一
如图1～5所示，为本发明第一个实施例，该割草机用除草盘包括由内部空心的圆形底座1及固定在圆形底座1上的上盖2组成的本体、连接在本体上的打草绳3、设置在本体上的用于连接并固定打草绳3的第一打草绳连接结构。
所述本体的中部设置有与外部动力机构输出轴连接的轴孔A。
所述第一打草绳连接结构包括：
设置在上盖2上的第一打草绳穿线孔22，该第一打草绳穿线孔22能允许弯折后的双股打草绳穿过，具体结构为上盖2上设置有向外凸起的凸台21，第一打草绳穿线孔22横向设置在该凸台21上，且第一打草绳穿线孔22的入口位置朝向本体外周设置，并且第一打草绳穿线孔22的内壁设置有与打草绳配合的轨道槽23，上盖2上设置有与第一打草绳穿线孔22连通的条状穿孔24，同时凸台21上设置有与所述条状穿孔24相对应的活动槽25，活动槽25的出口位置朝向圆形底座1中心设置；
连接杆4，该连接杆4的第一端41位于所述圆形底座1内部，所述连接杆4的第二端42为自由端，连接杆的第二端42呈圆弧形，连接杆4的第二端活动穿设于所述条状穿孔24内并部分外露于上盖2之外，第一打草绳穿线孔22与所述条状穿孔24相连通，弯折后的双股打草绳3在穿过所述第一打草绳穿线孔22后，打草绳3的弯折部能套设在所述连接杆4的第二端42；而连接杆4的第二端42还能在前述凸台21上的活动槽25内自由转动，连接杆4的第二端42的高度没有超出的活动槽25，从而使活动槽25能保护连接杆4的第二端42在转动过程中不受外界干扰；
第一转轴5，设置在所述圆形底座1内部，第一转轴5穿设在连接杆4的中部，所 述连接杆4能在其自由端受外力作用下绕第一转轴5转动，本实施例中，圆形底座1内设置有用于设置第一转轴5的第一凹形转台11，第一转轴5中部穿设在连接杆中部，第一转轴5的两端转动设置在第一凹形转台11内，第一凹形转台11下方设置有用于容置弹性件的容纳槽12；
压缩弹簧6，设置在所述圆形底座1的容纳槽12内，该压缩弹簧的第一端与所述容纳槽12内壁相抵，该压缩弹簧6的第二端与连接杆的第一端相抵，本实施例中，连接杆4的第一端设置有一圆柱形的连接柱43，压缩弹簧6的第二端则套设在连接柱43上从而保证压缩弹簧6和连接柱43之间连接的可靠性，进而保证压缩弹簧6的第一端与连接柱43的第一端可靠相抵。
本实施例中，本体上设置有两组前述第一打草绳连接结构，且在本体上呈180度对称分布。
本实施例中的第一打草绳连接结构可用于连接固定弯折后的双股打草绳，具体安装或更换打草绳的过程与原理为：
将一根需要长度的单股打草绳3对折，并保证对折后的两端打草绳的长度相同，将对折后打草绳3中间弯曲的弯折部31从上盖第一打草绳穿线孔22入口穿入，此时弯折部31会挤压连接杆4的第二端42，连接杆4的第二端42受到打草绳3弯折部31的挤压后，绕第一转轴5在上盖的条状穿孔24内朝向上盖中心转动，同时也接杆4的第二端42也在凸台21的活动槽25内转动，此时，连接杆4的第一端始终会挤压压缩弹簧6；
当连接杆4的第二端42转动到一定程度后，压缩弹簧6也被压缩到一定程度后，压缩弹簧6会回弹，而在压缩弹簧6的回弹力作用下，连接杆4会复位；
此时，连接杆4的第二端42又朝向上盖外周转动，此时，打草绳3中间弯曲的弯折部31会刚好套在连接杆4的第二端42上，为了保证套设的可靠性，操作者可以稍稍用力将双股打草绳向外拉，此时，打草绳3就被牢牢连接固定在第一打草绳连接结构上。
而更换打草绳3则更简单，只需要手握双股打草绳的两个自由端，将双股打草绳朝上盖中心挤压，当打草绳3中间弯曲的弯折部31从第一打草绳穿线孔22及活动槽25露出以后，再用双手拿住打草绳3中间弯曲的弯折部31，将其从活动槽25的出口位置拉出，然后再换上新的打草绳即可。
实施例二
如图6～8所示，为本发明的第二个实施例，本实施例的割草机用除草盘与实施例一不同的是，所述本体上还设置有用于连接并固定单股打草绳的第二打草绳连接结构，该第二打草绳连接结构包括：
设置在圆形底座1上的第二打草绳穿线孔13；
摇摆件7，所述摇摆件7顶部设置有凸起部71，所述上盖2上设置有通孔26，所 述凸起部71穿过上盖的通孔26设置且外露于上盖，摇摆件的底部设置呈弧型，且摇摆件的弧型底部设置有多个压齿72；
第二转轴8，设置在圆形底座内部，第二转轴8穿设于摇摆件7的中部，所述摇摆件能7在其底部受外力作用下绕第二转轴8转动；而所述圆形底座内设置有用于设置第二转轴8的第二凹形转台14，第二转轴8的两端设置在第二凹形转台14内后由前述上盖2压制固定，本实施例中，上盖2上制有向外凸起的压盖27，压盖27，刚好盖在第二凹形转台14外；
扭簧9，该扭簧穿设在第二转轴8上，扭簧9的第一自由端与第二凹形转台14相抵，扭簧9的第二自由端穿设于摇摆件7上，从而使扭簧9能抑制摇摆件7沿第二转轴8转动。
所述本体上设置有两组前述第二打草绳连接结构，且在本体上呈180度对称分布，且第二打草绳连接结构与第一打草绳连接结构之间间隔90度。
本实施例中的第二打草绳连接结构可用于连接固定单股打草绳，具体安装或更换打草绳的过程与原理为：
将一根需要长度的单股打草绳3的一个端部从圆形底座1上的第二打草绳穿线孔13入口穿入，此时单股打草绳3的端部会挤压摇摆件7的底部，摇摆件7底部受到打草绳3端部的挤压后，绕第二转轴8转动；
此时，穿设在第二转轴8上的扭簧9受到扭力挤压，产生反向作用力，而在扭簧9的反向回弹力作用下，摇摆件7的底部压齿72会紧紧咬合住打草绳3的端部；
为了使打草绳3的连接更加牢靠，可以在打草绳穿入第二打草绳穿线孔13的过程中，用外力施加在摇摆件7顶部的凸起部71上，使打草绳端部能顺利穿入第二打草绳穿线孔13，当外力从摇摆件7顶部的凸起部71上放开以后，在上盖及扭簧9作用下，摇摆件7的底部压齿72会牢牢咬合住打草绳3的端部，从而将单股打草绳固定在本体上。
更换打草绳3时，只需要用外力施加在摇摆件7顶部的凸起部71上，使摇摆件转动，并打草绳3的端部不再受到摇摆件7的底部压齿72的咬合，将打草绳3从第二打草绳穿线孔13中抽出，然后再换上新的打草绳即可。
本实施例中，圆形底座1上上可以连接固定两根单股打草绳，上盖上可以连接固定两根弯折后的双股打草绳，使得整个除草盘的除草效果更佳。

Claims (10)

  1. 一种割草机用除草盘，包括本体、连接在本体上的打草绳(3)和设置在本体上的用于连接并固定打草绳(3)的第一打草绳连接结构，其特征在于：
    所述第一打草绳连接结构包括：
    设置在本体外壁上的第一打草绳穿线孔(22)，该第一打草绳穿线孔(22)能允许弯折后的双股打草绳穿过；
    连接杆(4)，该连接杆(4)的第一端(41)位于所述本体内部，所述连接杆(4)的第二端(42)为自由端，所述本体上开设有条状穿孔(24)，所述连接杆(4)的第二端(42)活动穿设于所述条状穿孔(24)内并部分外露于本体之外，第一打草绳穿线孔(22)与所述条状穿孔(24)相连通，弯折后的双股打草绳在穿过所述第一打草绳穿线孔(22)后，打草绳的弯折部(31)能套设在所述连接杆(4)的第二端(42)；
    第一转轴(5)，设置在所述本体内部，第一转轴(5)与连接杆(4)的中部连接，所述连接杆(4)能在其自由端受外力作用下绕第一转轴(5)转动；
    弹性件，设置在所述本体内部，该弹性件的第一端(41)与所述本体内部相抵，该弹性件的第二端(42)与连接杆(4)的第一端(41)相抵。
  2. 根据权利要求1所述的割草机用除草盘，其特征在于：所述本体外壁上设置有向外凸起的凸台(21)，所述第一打草绳穿线孔(22)设置在该凸台(21)上。
  3. 根据权利要求2所述的割草机用除草盘，其特征在于：所述第一打草绳穿线孔(22)的内壁设置有与打草绳(3)配合的轨道槽(23)。
  4. 根据权利要求3所述的割草机用除草盘，其特征在于：所述凸台(21)上设置有与所述条状穿孔(24)相对应的、能允许所述连接杆(4)的第二端(42)在其内自由转动的活动槽(25)，所述第一打草绳穿线孔(22)的入口位置朝向本体外周设置，所述凸台(21)上活动槽(25)的出口位置朝向本体中心设置。
  5. 根据权利要求4所述的割草机用除草盘，其特征在于：所述本体包括圆形底座(1)，及固定在圆形底座(1)上的上盖(2)，所述条状穿孔(24)及凸台(21)均设置在上盖(2)上。
  6. 根据权利要求5所述的割草机用除草盘，其特征在于：所述圆形底座(1)内部空心，且圆形底座(1)内设置有用于设置第一转轴(5)的第一凹形转台(11)，第一凹形转台(11)下方设置有用于容置弹性件的容纳槽(12)。
  7. 根据权利要求6所述的割草机用除草盘，其特征在于：所述弹性件为压缩弹簧(6)，所述连接杆(4)的第一端(41)设置有一连接柱(43)，所述压缩弹簧(6)的第一端(41)与容纳槽(12)内壁相抵，所述压缩弹簧(6)的第二端(42)穿设在连接杆(4)第一端(41)的连接柱(43)上从而与连接杆(4)第一端(41)相抵。
  8. 根据权利要求7所述的割草机用除草盘，其特征在于：所述连接杆(4)的第二端 (42)呈圆弧形。
  9. 根据权利要求8所述的割草机用除草盘，其特征在于：所述本体上设置有两组前述第一打草绳连接结构，且在本体上呈180度对称分布。
  10. 根据权利要求1所述的割草机用除草盘，其特征在于：所述本体包括内部为空心的圆形底座(1)，及固定在圆形底座(1)上的上盖(2)，所述本体上还设置有用于连接并固定打草绳的第二打草绳连接结构，该第二打草绳连接结构包括：
    设置在圆形底座(1)上的第二打草绳穿线孔(13)；
    摇摆件(7)，所述摇摆件(7)顶部设置有凸起部(71)，所述上盖(2)上设置有通孔(26)，所述凸起部(71)穿过上盖(2)的通孔(26)设置且外露于上盖(2)，摇摆件(7)的底部设置呈弧型，且摇摆件(7)的弧型底部设置有多个压齿(72)；
    第二转轴(8)，设置在圆形底座(1)内部，第二转轴与摇摆件(7)的中部连接，所述摇摆件(7)能在其底部受外力作用下绕第二转轴转动；而所述圆形底座(1)内设置有用于设置第二转轴的第二凹形转台(14)，所述第二转轴设置在第二凹形转台(14)内后由前述上盖(2)压制固定；
    扭簧(9)，该扭簧(9)穿设在第二转轴上，扭簧(9)的第一自由端与第二凹形转台(14)相抵，扭簧(9)的第二自由端穿设于摇摆件(7)上，从而使扭簧(9)能抑制前述摇摆件(7)沿第二转轴转动。
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