WO2020182073A1

WO2020182073A1 - Trimmer head and grass trimmer having same

Info

Publication number: WO2020182073A1
Application number: PCT/CN2020/078184
Authority: WO
Inventors: 戚邦彦; 张煜
Original assignee: 宝时得科技（中国）有限公司
Priority date: 2019-03-08
Filing date: 2020-03-06
Publication date: 2020-09-17
Also published as: CN209845727U

Abstract

A trimmer head and a grass trimmer. The trimmer head comprises: a housing (10), a knocker head (20), and a wire reel (30). The knocker head comprise a knocker head body (21). The knocker head body is provided in a receiving cavity, and can rotate synchronously with the housing. The knocker head body is configured to operably move in the direction of the rotation axis of the housing, and the knocker head body can be connected to or disconnected from the housing in the process of moving in the direction of the rotation axis of the housing. The wire reel comprises a wire reel body (32) and an operation portion (34). The wire reel body is provided in the receiving cavity, and can rotate synchronously with the knocker head body. The operation portion extends out of the housing for the user to perform a rotating winding operation. The operation portion does not move in the direction of the rotation axis during the rotating winding operation. During this rotating winding operation, a wire rotating operation element performs a winding operation, and the operation portion does not move axially in the direction of the rotation axis of the housing, thereby further facilitating a screwing operation by the operation portion held with a hand; moreover, because the wire reel does not move axially with respect to the housing during wire pay-off, the pay-off stability is high and wire jamming is less likely to occur.

Description

打草头及采用该打草头的打草机Mowing head and mowing machine using the same

本申请要求了申请日为2019年03月08日，申请号为201920295734.5的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application whose application date is March 08, 2019 and the application number is 201920295734.5, the entire content of which is incorporated into this application by reference.

技术领域Technical field

本发明涉及园林工具，特别是涉及一种打草头及采用该打草头的打草机。The invention relates to garden tools, in particular to a mowing head and a mowing machine using the mowing head.

背景技术Background technique

打草机作为一种打理草皮的园林工具，正受到越来越多用户的青睐，广泛应用于高尔夫球场、足球场、庄园、院落等草皮的修剪。通常，打草机包括打草头及用于驱动打草头旋转的马达。打草头包括壳体以及设置在壳体的收容腔内的绕线盘，打草线缠绕在绕线盘上，并穿出壳体外。工作时，马达驱动打草头旋转，从而带动打草线同步旋转，进而实现打草。As a garden tool for turf management, lawn mowers are being favored by more and more users and are widely used in golf courses, football fields, manors, courtyards and other turf trimmings. Generally, a lawn mower includes a lawn mower and a motor for driving the lawn mower to rotate. The mowing head includes a shell and a winding reel arranged in the receiving cavity of the shell. The trimming wire is wound on the winding reel and passes out of the shell. When working, the motor drives the cutting head to rotate, thereby driving the cutting line to rotate synchronously, thereby realizing cutting.

由于打草线旋转而打草，因此打草线末端容易磨损，磨损后的打草线达不到所需的打草半径，打草效率大大降低。为此，打草机上需设置放线机构，以在合适的时机调整打草线穿出壳体外的长度。Because the cutting line rotates to cut grass, the end of the cutting line is easy to wear, and the worn cutting line cannot reach the required cutting radius, and the cutting efficiency is greatly reduced. For this reason, a wire pay-off mechanism needs to be provided on the lawn mower to adjust the length of the lawn mower that passes through the housing at an appropriate time.

对于敲击式放线打草机，在放线时，通过敲击头在地面上敲击，使绕线盘与壳体脱离配合而产生相对转动，从而实现放线。但是，传统的敲击式打草机在放线过程中，绕线盘在打草头内轴向窜动，导致打草线松散放线的稳定性差，容易出现卡线的现象。For the percussion type pay-off grass trimmer, during the pay-off, the percussion head strikes on the ground, so that the reel and the shell are disengaged to produce relative rotation, so as to realize the pay-off. However, during the wire pay-off process of the traditional percussion mower, the winding reel moves axially in the mower head, which leads to poor stability of the loose mower line and wire jamming.

当打草线消耗殆尽，需要用户重新加载打草线。传统的打草机，需要拆下绕线盘，手动将打草线缠绕至绕线盘，然后再安装至打草头上，换线非常麻烦。还有一种打草头，加载线时不需要将打草头拆开，直接通过出线孔***打草线，然后旋转敲击头绕线，但是旋转绕线过程中，敲击头不仅作旋转运动，在轴向上会上下窜动，绕线操作体验差。When the cutting line is exhausted, the user needs to reload the cutting line. The traditional lawn mower needs to remove the winding reel, manually wind the cutting line to the winding reel, and then install it on the cutting head, which is very troublesome. There is also a kind of mowing head. When loading the wire, there is no need to disassemble the mowing head. Insert the mowing wire directly through the outlet hole, and then rotate the tapping head to wind the wire. However, during the rotating winding process, the tapping head does not only rotate. , It will move up and down in the axial direction, and the winding operation experience is poor.

发明内容Summary of the invention

基于此，有必要针对传统的打草机绕线不方便，放线的稳定性差，容易出现卡线现象的问题，提供一种改善上述缺陷的打草头及打草机。Based on this, it is necessary to solve the problems of inconvenient winding of traditional lawn mowers, poor line-out stability, and line jamming, and provide a lawn mower and mower that can improve the above-mentioned defects.

打草头，包括：壳体，具有收容腔以及供打草线由所述收容腔穿出的出线孔；The mowing head includes: a housing with a receiving cavity and an outlet hole for the mowing line to pass through the receiving cavity;

敲击头，包括敲击头本体，所述敲击头本体设置于所述收容腔，且可选的随所述壳体同步旋转；所述敲击头本体被构造为可操作地沿所述壳体的旋转轴线方向往复运动，且在往复运动过程中所述敲击头本体可与所述壳体连接或分离，所述敲击头本体与所述壳体分离时，所述敲击头本体可相对所述壳体旋转以放线；及The percussion head includes a percussion head body, the percussion head body is arranged in the accommodating cavity and optionally rotates synchronously with the housing; the percussion head body is configured to operably move along the The rotation axis of the housing reciprocates, and the percussion head body can be connected to or separated from the housing during the reciprocating movement. When the percussion head body is separated from the housing, the percussion head The main body can rotate relative to the casing to pay off the wire; and

绕线盘，包括绕线盘本体；所述绕线盘本体设置于所述收容腔；所述绕线盘本体包括至少一对插线开口，所述插线开口能够与所述出线孔对齐，以允许所述打草线由所述出线孔***所述插线开口；所述绕线盘本体在所述收容腔内被轴向限位保持，使得所述插线开口与所述出线孔在所述旋转轴线方向上不发生相对位移；The reel includes a reel body; the reel body is disposed in the receiving cavity; the reel body includes at least a pair of wire insertion openings, and the wire insertion openings can be aligned with the outlet holes, In order to allow the cutting line to be inserted into the wire insertion opening through the outlet hole; the bobbin body is axially limited and held in the receiving cavity, so that the wire insertion opening and the outlet hole No relative displacement occurs in the direction of the rotation axis;

一对所述插线开口相互连通，相互连通的路径形成一个穿线通道，所述打草线能够由其中一个所述出线孔***，穿过所述穿线通道，并自其中另一个所述出线孔穿出；A pair of the wire insertion openings communicate with each other, and the mutually communicating paths form a threading channel. The grass trimming line can be inserted through one of the threading holes, passing through the threading channel, and passing through the other of the threading holes. Pass out

所述敲击头本体的周向外表面向内凹陷形成导线凹槽，所述导线凹槽的一端与一对所述插线开口的其中一个所述插线开口对齐连通，所述导向凹槽的另一端与其中另一个所述插线开口对齐连通，所述绕线盘本体的内壁与所述导线凹槽配合限定出所述穿线通道；The outer surface of the percussion head body is recessed inward to form a wire groove, one end of the wire groove is aligned and communicated with one of the pair of wire insertion openings, and the guide groove The other end is aligned and communicated with the other of the wire insertion openings, and the inner wall of the reel body cooperates with the wire groove to define the wire passing channel;

所述绕线盘还包括连接于所述绕线盘本体的操作部，所述操作部穿出于所述壳体外用于供用户进行旋转绕线操作，所述操作部在所述旋转绕线操作过程中不发生所述旋转轴线方向上的运动。The reel further includes an operating part connected to the main body of the reel, the operating part penetrates out of the housing for a user to perform a rotating winding operation, and the operating part No movement in the direction of the rotation axis occurs during operation.

在其中一实施例中，所述绕线盘套设在所述敲击头本体外，所述绕线盘随着所述敲击头本体的旋转运动而同步转动，所述敲击头本体在所述旋转轴线方向上运动并不会导致所述绕线盘的在所述旋转轴线方向上的相应运动。In one of the embodiments, the reel is sleeved outside the body of the percussion head, and the reel rotates synchronously with the rotation of the percussion head body, and the percussion head body is The movement in the direction of the rotation axis does not cause a corresponding movement of the spool in the direction of the rotation axis.

在其中一实施例中，所述插线开口的数量为两个，两个所述插线开口呈180度对称设置在所述隔缘上。In one of the embodiments, the number of the wire insertion openings is two, and the two wire insertion openings are symmetrically arranged on the partition edge at 180 degrees.

在其中一实施例中，所述敲击头还包括敲击帽，所述敲击帽绕所述壳体的旋转轴线可转动地连接于所述敲击头本体，且至少部分穿出于所述壳体。In one of the embodiments, the percussion head further includes a percussion cap, the percussion cap is rotatably connected to the percussion head body about the rotation axis of the housing, and at least partially penetrates述壳。 Said shell.

本发明还提供一种打草头，包括：The invention also provides a mowing head, including:

壳体，具有收容腔以及供打草线由所述收容腔穿出的出线孔；The housing has a receiving cavity and an outlet hole for the mowing line to pass through the receiving cavity;

绕线盘，包括绕线盘本体；所述绕线盘本体设置于所述收容腔；所述绕线盘本体包括插线开口，所述插线开口能够与所述出线孔对齐，以允许所述打草线由所述出线孔***所述插线开口；The spool includes a spool body; the spool body is disposed in the receiving cavity; the spool body includes a wire insertion opening that can be aligned with the wire outlet hole to allow The grass cutting line is inserted into the wire insertion opening through the outlet hole;

在其中一实施例中，所述绕线盘本体在所述收容腔内被轴向限位保持，使得所述插线开口与所述出线孔在所述旋转轴线方向上不发生相对位移。In one of the embodiments, the reel body is axially restricted and held in the receiving cavity, so that the wire insertion opening and the wire outlet hole do not undergo relative displacement in the direction of the rotation axis.

在其中一实施例中，所述绕线盘本体包括绕线轴及固定连接于所述绕线轴的隔缘，所述隔缘沿所述绕线轴的周向延伸，以在所述绕线轴上形成位于所述隔缘相对两侧的第一绕线区和第二绕线区；In one of the embodiments, the bobbin body includes a bobbin and a spacer fixedly connected to the bobbin, and the spacer extends along the circumference of the bobbin to form on the bobbin A first winding area and a second winding area located on opposite sides of the spacer;

所述出线孔的个数为两个，两个所述出线孔相对设置；所述插线开口成对地设置于所述隔缘上，且包括至少一对适于与所述出线孔对齐的所述插线开口；The number of the outlet holes is two, and the two outlet holes are arranged opposite to each other; the insertion openings are arranged in pairs on the partition edge, and include at least one pair suitable for aligning with the outlet holes The plug-in opening;

每一对所述插线开口的其中一个所述插线开口连通于所述第一绕线区，其中另一个所述插线开口连通于所述第二绕线区。One of the wire insertion openings of each pair of the wire insertion openings is connected to the first winding area, and the other of the wire insertion openings is connected to the second winding area.

在其中一实施例中，一对所述插线开口相互连通，相互连通的路径形成一个穿线通道，所述打草线能够由其中一个所述出线孔***，穿过所述穿线通道，并自其中另一个所述出线孔穿出。In one of the embodiments, a pair of the thread insertion openings are connected to each other, and the mutually connected path forms a threading channel. The grass cutting line can be inserted into one of the threading holes, passing through the threading channel, and One of the outlet holes is penetrated.

在其中一实施例中，所述敲击头本体的周向外表面向内凹陷形成导线凹槽，所述导线凹槽的一端与一对所述插线开口的其中一个所述插线开口对齐连通，所述导向凹槽的另一端与其中另一个所述插线开口对齐连通，所述绕线盘本体的内壁与所述导线凹槽配合限定出所述穿线通道。In one of the embodiments, the peripheral surface of the percussion head body is recessed inward to form a wire groove, and one end of the wire groove is aligned and communicated with one of the pair of wire insertion openings. The other end of the guide groove is aligned and communicated with the other of the wire insertion openings, and the inner wall of the reel body cooperates with the wire groove to define the threading channel.

在其中一实施例中，所述敲击头还包括轴承，所述轴承安装于所述敲击头本体与所述敲击帽之间，以使所述敲击帽相对所述敲击头本体可转动。In one of the embodiments, the percussion head further includes a bearing installed between the percussion head body and the percussion cap so that the percussion cap is opposite to the percussion head body Can be rotated.

在其中一实施例中，所述打草头还包括弹性件，所述弹性件设置于所述壳体与所述敲击头本体之间，以提供使所述敲击头本体具有朝向所述敲击帽方向的运动趋势的预紧力。In one of the embodiments, the mowing head further includes an elastic member disposed between the housing and the percussion head body to provide the percussion head body facing the The pretension of the movement trend in the direction of the knocking cap.

在其中一实施例中，所述打草头还包括设置于所述敲击头本体与所述壳体之间的传动结构；In one of the embodiments, the mowing head further includes a transmission structure arranged between the percussion head body and the housing;

所述打草头包括打草状态及放线状态；The grass cutting head includes a grass cutting state and a line setting state;

当打草头处于所述打草状态，所述传动结构连接所述敲击头本体和所述壳体，以使所述敲击头随所述壳体可同步旋转；When the cutting head is in the cutting state, the transmission structure connects the main body of the striking head and the housing, so that the striking head can rotate synchronously with the housing;

当所述打草头处于所述放线状态，所述传动结构分离所述敲击头本体和所述壳体，以使所述敲击头相对所述壳体可旋转。When the cutting head is in the pay-off state, the transmission structure separates the striking head body and the housing, so that the striking head can rotate relative to the housing.

在其中一实施例中，所述绕线盘本体连接于所述敲击头本体，所述绕线盘本体设有沿所述绕线盘本体的周向布设的多个第一传动齿，所述敲击头本体设有沿所述敲击头本体的周向布设的多个第二传动齿；In one of the embodiments, the reel body is connected to the percussion head body, and the reel body is provided with a plurality of first transmission teeth arranged along the circumference of the reel body, so The percussion head body is provided with a plurality of second transmission teeth arranged along the circumference of the percussion head body;

所述第一传动齿与所述第二传动齿相啮合，以使所述绕线盘本体与所述敲击头本体可同步转动。The first transmission tooth meshes with the second transmission tooth, so that the reel body and the striking head body can rotate synchronously.

在其中一实施例中，所述第一传动齿及所述第二传动齿均沿与所述壳体的旋转轴线相平行的方向延伸，以使在所述敲击头本体沿所述壳体的旋转轴线方向运动的过程中所述第一传动齿与第二传动齿保持啮合。In one of the embodiments, the first transmission tooth and the second transmission tooth both extend in a direction parallel to the rotation axis of the housing, so that the percussion head body along the housing During the movement in the direction of the rotation axis, the first transmission tooth and the second transmission tooth keep meshing.

本发明还提供一种打草机，包括上述任一项实施例所述的打草头。The present invention also provides a grass trimmer, including the grass trimmer described in any one of the above embodiments.

上述打草头及打草机，需要绕线时，打草机的驱动件不工作(打草头不旋转)，将打草线连接于绕线盘本体，然后旋拧操作部，从而带动绕线盘本体及敲击头本体相对壳体旋转，进而实现将打草线缠绕于绕线盘本体上。由于绕线盘本体不沿壳体的旋转轴线运动，从而更加便于手持操作部进行旋拧操作。When the above-mentioned cutting head and cutting machine need to be wound, the driving part of the cutting machine does not work (the cutting head does not rotate), connect the cutting line to the winding plate body, and then screw the operating part to drive the winding The wire reel body and the percussion head body rotate relative to the casing, so as to realize the winding of the grass cutting line on the winding reel body. Since the spool body does not move along the rotation axis of the housing, it is more convenient to hold the operating part for screwing operations.

在需要放线时，可通过外力敲击敲击帽使敲击头本体沿壳体的旋转轴线方向运动而与壳体脱离，由于绕线盘本体随敲击头本体同步转动，因此绕线盘本体及敲击头本体在穿出于壳体的打草线的拉动下相对壳体旋转一定的角度，使得缠绕于绕线盘本体的打草线在离心力的作用下继续穿出壳体外，实现放线。When it is necessary to pay off the wire, the percussion cap can be knocked by an external force to move the percussion head body along the rotation axis of the housing and separate from the housing. Since the reel body rotates synchronously with the percussion head body, the reel The main body and the percussion head body rotate at a certain angle relative to the casing under the pull of the cutting line passing through the casing, so that the cutting line wound around the spool body continues to pass out of the casing under the action of centrifugal force to achieve Pay off.

如此，在上述放线过程中，仅仅敲击头沿壳体的旋转轴线方向运动，而绕线盘可不沿壳体的旋转轴线方向运动，使得在壳体的旋转轴线方向上，绕线盘相对于壳体的出线孔的位置保持不变，进而提升了放线的稳定性，不易出现卡线的现象。In this way, in the above-mentioned pay-off process, only the percussion head moves in the direction of the rotation axis of the housing, and the reel may not move along the direction of the rotation axis of the housing, so that in the direction of the rotation axis of the housing, the reel is opposite The position of the wire outlet hole on the housing remains unchanged, thereby improving the stability of the wire payout and preventing wire jamming.

附图说明Description of the drawings

图1为本发明一实施例中的打草头的剖视图；Figure 1 is a cross-sectional view of a mowing head in an embodiment of the invention;

图2为图1所示的打草头的分解结构示意图；Fig. 2 is a schematic diagram of an exploded structure of the mowing head shown in Fig. 1;

图3为图1所示的打草头的底座的结构示意图；3 is a schematic diagram of the structure of the base of the mowing head shown in FIG. 1;

图4为图1所示的打草头的绕线盘的结构示意图。4 is a schematic diagram of the structure of the bobbin of the mowing head shown in FIG. 1.

图5为另一实施例所提供的打草头的敲击头结构示意图。Fig. 5 is a structural diagram of a percussion head of a grass cutting head provided by another embodiment.

图6为本发明一实施例所提供的打草机结构示意图。Fig. 6 is a schematic structural diagram of a lawn mower provided by an embodiment of the present invention.

具体实施方式detailed description

为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳的实施例。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

一般地，打草头的绕线盘沿旋转轴线可移动地安装于打草头的壳体内，敲击头的一端连接于所述绕线盘，另一端穿出壳体，以供外力敲击。当敲击敲击头时，绕线盘沿旋转轴线移动而与壳体脱离配合，从而与壳体产生相对运动，实现放线。本申请的发明人发现，传统的打草头在放线过程中，绕线盘需要沿旋转轴线移动，从而使得绕线盘相对设置于壳体的穿线孔的位置在沿旋转轴线方向上串动，严重影响放线的稳定性，容易出现卡线的现象。Generally, the bobbin of the mowing head is movably installed in the shell of the mowing head along the axis of rotation. One end of the percussion head is connected to the bobbin, and the other end penetrates the shell for external percussion. . When the percussion head is struck, the spool moves along the axis of rotation and disengages from the casing, thereby generating relative movement with the casing to realize the wire setting. The inventor of the present application found that the winding reel needs to move along the axis of rotation during the wire pay-off process of the traditional mowing head, so that the winding reel moves in the direction of the rotation axis relative to the position of the threading hole provided in the housing. , Which seriously affects the stability of the pay-off, and is prone to jamming.

基于上述问题，有必要提供一种放线稳定性好，不容易出现卡线现象的打草头及打草机。Based on the above-mentioned problems, it is necessary to provide a mowing head and mowing machine that has good line-out stability and is not prone to jamming.

图1示出了本发明一实施例中的打草头的剖视结构。图2示出了图1所示的打草头的分解结构。为便于描述，附图仅示出了与本发明相关的结构。Figure 1 shows a cross-sectional structure of a mowing head in an embodiment of the present invention. Fig. 2 shows an exploded structure of the mowing head shown in Fig. 1. For ease of description, the drawings only show structures related to the present invention.

如图1及图2所示，本发明的一实施例中提供的打草头，包括壳体10、敲击头20(见图2)及绕线盘30。As shown in FIGS. 1 and 2, the mowing head provided in an embodiment of the present invention includes a housing 10, a percussion head 20 (see FIG. 2 ), and a winding disk 30.

壳体10可与打草机的驱动件(图未示)的输出轴连接，以驱动壳体10绕其旋转轴线旋转。壳体10具有收容腔以及供打草线100由该收容腔穿出的出线孔146。The casing 10 can be connected with the output shaft of the driving member (not shown) of the lawn mower to drive the casing 10 to rotate around its rotation axis. The housing 10 has a receiving cavity and a wire outlet hole 146 through which the cutting line 100 passes through the receiving cavity.

敲击头20包括敲击头本体21。敲击头本体21设置于壳体10的收容腔内，且可随壳体10同步旋转。该敲击头本体21被构造为可操作地沿壳体10的旋转轴线方向往复运动，且在敲击头本体21沿壳体10的旋转轴线方向往复运动过程中，敲击头本体21可与壳体10连接或分离，以使敲击头本体21可相对壳体10旋转。如此，打草头在打草机的驱动件驱动旋转时，可利用外力敲击敲击帽22，使得敲击头本体21沿壳体10的旋转轴线方向运动，从而敲击头本体21与壳体10连接或分离，由于下述绕线盘本体32与敲击头本体21同步旋转(如下所述)，因此，在缠绕于绕线盘本体32并穿出壳体10外的打草线100的拉动下，绕线盘本体32和敲击头本体21可相对壳体10产生相对旋转，从而实现放线。The beating head 20 includes a beating head body 21. The percussion head body 21 is disposed in the receiving cavity of the casing 10 and can rotate synchronously with the casing 10. The percussion head body 21 is configured to operably reciprocate in the direction of the rotation axis of the housing 10, and during the reciprocating movement of the percussion head body 21 in the direction of the rotation axis of the housing 10, the percussion head body 21 can interact with The casing 10 is connected or separated so that the percussion head body 21 can rotate relative to the casing 10. In this way, when the mowing head is driven to rotate by the driving member of the mowing machine, external force can be used to strike the percussion cap 22, so that the percussion head body 21 moves along the rotation axis direction of the housing 10, thereby striking the head body 21 and the housing. The body 10 is connected or separated. Since the reel body 32 described below rotates synchronously with the striking head body 21 (as described below), the mowing line 100 wound around the reel body 32 and passing out of the housing 10 Under the pulling of the spool, the reel body 32 and the percussion head body 21 can rotate relative to the housing 10, so as to realize the pay-off.

绕线盘30包括用于缠绕打草线100的绕线盘本体32，以及连接于该绕线盘本体32的操作部34。该绕线盘本体32设置于壳体10的收容腔，且可与敲击头本体21同步旋转。绕线盘本体32包括插线开口3222，该插线开口3222能够与出线孔146对齐，以允许打草线100由出线孔146***插线开口3222。在一实施例中，操作部34固定连接于或一体成型于绕线盘本体32。The reel 30 includes a reel body 32 for winding the mowing thread 100 and an operation part 34 connected to the reel body 32. The reel body 32 is disposed in the receiving cavity of the housing 10 and can rotate synchronously with the percussion head body 21. The bobbin body 32 includes a wire insertion opening 3222 that can be aligned with the wire outlet hole 146 to allow the mowing wire 100 to be inserted into the wire insertion opening 3222 through the wire outlet hole 146. In one embodiment, the operating portion 34 is fixedly connected to or integrally formed on the bobbin body 32.

操作部34穿出于壳体10外，当旋拧该操作部34，可带动绕线盘本体32及敲击头本体21相对壳体10旋转，从而实现将打草线100缠绕于绕线盘本体32上。操作部34在旋转绕线操作过程中不发生旋转轴线方向上的运动。The operating portion 34 penetrates out of the housing 10. When the operating portion 34 is screwed, the reel body 32 and the percussion head body 21 can be driven to rotate relative to the housing 10, thereby realizing the winding of the cutting line 100 on the reel On the body 32. The operation portion 34 does not move in the direction of the rotation axis during the rotation winding operation.

上述打草头，需要绕线时，打草机的驱动件不工作(打草头不旋转)，将打草线连接于绕线盘本体32的插线开口3222，然后旋拧操作部34，从而带动绕线盘本体32及敲击头本体21相对壳体10旋转，进而实现将打草线100缠绕于绕线盘本体32上。由于可沿壳体10的旋转轴线方向运动的是敲击头本体21，而绕线盘本体32不能够沿壳体10的旋转轴线运动，从而更加便于手持操作部34进行旋拧操作。When the above-mentioned mowing head needs to be wound, the driving part of the mowing machine does not work (the mowing head does not rotate), connect the mowing wire to the wire insertion opening 3222 of the reel body 32, and then screw the operating part 34, Thus, the reel body 32 and the percussion head body 21 are driven to rotate relative to the housing 10, so as to realize the winding of the cutting line 100 on the reel body 32. Since the percussion head body 21 can move along the rotation axis direction of the housing 10, and the spool body 32 cannot move along the rotation axis of the housing 10, it is more convenient to hold the operating portion 34 for screwing operations.

在需要放线时，可通过外力敲击敲击头20，使敲击头本体21沿壳体10的旋转轴线方向运动而与壳体10分离。由于绕线盘本体32随敲击头本体21同步转动，因此绕线盘本体32及敲击头本体21在穿出于壳体10的打草线100的拉动下相对壳体10旋转一定的角度，使得缠绕于绕线盘本体32的打草线100在离心力的作用下继续穿出壳体10外，进而实现放线。When the wire needs to be paid out, the percussion head 20 can be struck by an external force, so that the percussion head body 21 moves along the rotation axis direction of the housing 10 and is separated from the housing 10. Since the reel body 32 rotates synchronously with the percussion head body 21, the reel body 32 and the percussion head body 21 rotate to a certain angle relative to the casing 10 under the pull of the mowing line 100 passing through the casing 10 , So that the grass trimming line 100 wound around the spool body 32 continues to pass out of the housing 10 under the action of centrifugal force, so that the line is paid off.

如此，在上述放线过程中，仅仅敲击头20沿壳体10的旋转轴线方向运动，而绕线盘30可不沿壳体10的旋转轴线方向运动，使得在壳体10的旋转轴线方向上，绕线盘30相对于壳体10出线孔146的位置保持不变，进而有利于提升放线的稳定性，不易出现卡线的现象。In this way, in the above-mentioned pay-off process, only the percussion head 20 moves in the direction of the rotation axis of the housing 10, and the spool 30 may not move in the direction of the rotation axis of the housing 10, so that it is in the direction of the rotation axis of the housing 10. The position of the winding reel 30 relative to the outlet hole 146 of the housing 10 remains unchanged, which is beneficial to improve the stability of the wire payout, and the phenomenon of wire jamming is not easy to occur.

本实施例中，请参见图1和图2，绕线盘31套设在敲击头本体21外，使得绕线盘随着敲击头本体21的旋转运动而同步转动。绕线盘31套设在敲击头本体21外，可以是部分嵌套设置，也可以是完全套设，也就是说，绕线盘31至少包括一部分嵌套在敲击头本体21外都应该落在本发明的保护范围内。绕线盘31在收容腔内被轴向限位保持，即绕线盘本体相对收容腔不能在旋转轴线方向移动，从而使得插线开口3222与出线孔146在旋转轴线方向上不发生相对位移。轴向限位保持应当理解为绕线盘31和壳体10不发生轴向相对移动，包括绕线盘31与壳体10均在轴向上不发生移动的情况，以及绕线盘31与壳体10同步在旋转轴向方向上移动的情况。In this embodiment, referring to FIGS. 1 and 2, the reel 31 is sleeved outside the percussion head body 21, so that the reel is rotated synchronously with the rotation of the percussion head body 21. The reel 31 is sleeved outside the percussion head body 21, and can be partially nested or completely sleeved. That is to say, the reel 31 includes at least a part of the percussion head body 21 that is nested outside. It falls within the protection scope of the present invention. The reel 31 is axially limited and held in the receiving cavity, that is, the reel body cannot move in the direction of the rotation axis relative to the receiving cavity, so that the wire insertion opening 3222 and the wire outlet hole 146 do not move relative to the direction of the rotation axis. Axial limit retention should be understood as the fact that the reel 31 and the housing 10 do not move relative to each other in the axial direction, including the case where the reel 31 and the housing 10 do not move in the axial direction, and the reel 31 and the housing The case where the body 10 moves synchronously in the axial direction of rotation.

本实施例中，绕线盘31与壳体10在旋转轴向方向上均不发生移动，敲击头本体21在壳体的旋转轴线方向上运动并不会导致绕线盘31的在壳体10的旋转轴线方向上的相应运动，使得插线开口3222与出线孔146在旋转轴线方向上不发生相对位移，始终保持对齐。In this embodiment, the reel 31 and the housing 10 do not move in the axial direction of rotation, and the movement of the percussion head body 21 in the direction of the rotation axis of the housing will not cause the reel 31 to move in the housing The corresponding movement in the direction of the rotation axis of 10 makes the wire insertion opening 3222 and the wire outlet hole 146 not relatively displaced in the direction of the rotation axis, and always maintains alignment.

本发明的实施例中，敲击头20还包括敲击帽22，敲击帽22绕壳体10的旋转轴线可转动地连接于敲击头本体21，并至少部分穿出于壳体10，以便于利用外力敲击敲击帽22时，使得敲击头本体21沿壳体10的旋转轴线方向运动。In the embodiment of the present invention, the percussion head 20 further includes a percussion cap 22. The percussion cap 22 is rotatably connected to the percussion head body 21 about the rotation axis of the housing 10, and at least partially penetrates the housing 10. In order to make the percussion head body 21 move along the rotation axis direction of the housing 10 when the percussion cap 22 is percussed with an external force.

如此，由于敲击帽22与草皮接触时可相对草皮静止，从而避免了随壳体10旋转的敲击头20与草皮接触，破坏草皮、磨损敲击头以及增加打草机驱动件的负载。进一步地，由于敲击帽22可相对敲击头本体21旋转，因此不便于操作者手持旋转敲击头20而将打草线100缠绕于绕线盘本体32上。鉴于此，上述打草头设置有穿出壳体10的操作部34，可手持操作部34旋转绕线盘30，从而实现绕线，更加方便了操作人员手持操作实现绕线。In this way, since the percussion cap 22 can be stationary relative to the turf when it is in contact with the turf, it is avoided that the percussion head 20 rotating with the housing 10 contacts the turf, damages the turf, wears the percussion head, and increases the load on the driving parts of the lawn mower. Furthermore, since the percussion cap 22 can rotate relative to the percussion head body 21, it is not convenient for the operator to hold the rotary percussion head 20 and wind the cutting line 100 on the reel body 32. In view of this, the above-mentioned mowing head is provided with an operating portion 34 that penetrates the housing 10, and the operating portion 34 can be held to rotate the winding reel 30, thereby realizing winding, which is more convenient for the operator to handle the winding.

一些实施例中，敲击头20还包括轴承24，该轴承24安装于敲击头本体21与敲击帽22之间，以使敲击帽22相对敲击头本体21可转动地设置。如此，通过轴承24实现敲击帽22与敲击头本体21的可转动连接，结构简单，易于装配。In some embodiments, the percussion head 20 further includes a bearing 24 which is installed between the percussion head body 21 and the percussion cap 22 so that the percussion cap 22 is rotatably disposed relative to the percussion head body 21. In this way, the rotatable connection between the percussion cap 22 and the percussion head body 21 is realized through the bearing 24, and the structure is simple and easy to assemble.

具体到实施例中，轴承24可包括可相对旋转的内圈242和外圈244。内圈242和外圈244的其中一个固定连接于敲击头本体21，其中另一个固定连接于敲击帽22。如此，通过将敲击头本体21与敲击帽22分别固定连接于轴承24的内圈242和外圈244，从而实现了敲击帽22相对敲击头本体21可转动。需要说明的是，轴承24的轴线与敲击头本体21及敲击帽22的轴线共线。Specifically, in the embodiment, the bearing 24 may include an inner ring 242 and an outer ring 244 that can rotate relatively. One of the inner ring 242 and the outer ring 244 is fixedly connected to the striking head body 21, and the other is fixedly connected to the striking cap 22. In this way, by fixing the percussion head body 21 and the percussion cap 22 to the inner ring 242 and the outer ring 244 of the bearing 24 respectively, the percussion cap 22 can be rotated relative to the percussion head body 21. It should be noted that the axis of the bearing 24 is collinear with the axis of the striking head body 21 and the striking cap 22.

在一个实施例中，敲击头本体21朝向敲击帽22的一端设有用于安装上述轴承24的安装槽(图未标)，敲击帽22朝向敲击头本体21的一侧凸设有与内圈242的内孔相配合的凸柱(图未标)。为了实现轴承24的外圈244与敲击头本体21的固定连接，以及轴承24的内圈242与敲击帽22的固定连接，在本实施例中，敲击头20还包括第一压紧件25及第二压紧件26。第一压紧件25一端螺纹连接于敲击头本体21，相对的另一端抵压于外圈244远离敲击头本体21的一端，以将外圈244压紧固定于敲击头本体21。第二压紧件26的一端螺纹连接于凸柱的端部，另一端抵压于内圈242远离敲击帽22的一端，以将内圈242压紧固定于敲击帽22。如此，采用压紧固定的方式分别固定安装内圈242与外圈244，安装和拆卸方便。In one embodiment, the end of the percussion head body 21 facing the percussion cap 22 is provided with a mounting groove (not shown in the figure) for installing the above-mentioned bearing 24, and the percussion cap 22 is convexly provided on one side of the percussion head body 21 A boss (not shown in the figure) matched with the inner hole of the inner ring 242. In order to realize the fixed connection between the outer ring 244 of the bearing 24 and the striking head body 21, and the fixed connection between the inner ring 242 of the bearing 24 and the striking cap 22, in this embodiment, the striking head 20 further includes a first pressing Piece 25 and the second pressing piece 26. One end of the first pressing member 25 is threadedly connected to the percussion head body 21, and the opposite end is pressed against the end of the outer ring 244 away from the percussion head body 21 to press and fix the outer ring 244 to the percussion head body 21. One end of the second pressing member 26 is threadedly connected to the end of the boss, and the other end is pressed against the end of the inner ring 242 away from the percussion cap 22 to press and fix the inner ring 242 to the percussion cap 22. In this way, the inner ring 242 and the outer ring 244 are respectively fixedly installed in a compression fixing manner, which is convenient for installation and disassembly.

需要说明的是，轴承24的装配并不仅限于通过压紧固定的方式，也可以采用其它方式，在此不作限定。例如在一个实施例中，轴承24的外圈244与安装槽过盈配合，轴承24的内圈242与凸柱过盈配合，从而实现轴承24的紧配安装。It should be noted that the assembling of the bearing 24 is not limited to the method of pressing and fixing, and other methods can also be used, which is not limited here. For example, in one embodiment, the outer ring 244 of the bearing 24 is in interference fit with the mounting groove, and the inner ring 242 of the bearing 24 is in interference fit with the boss, so as to realize the tight fitting installation of the bearing 24.

可以理解的是，在另一实施例中，也可将轴承24的内圈242固定连接于敲击头本体21，轴承24的外圈244固定连接于敲击帽22。也就是说，安装槽开设于敲击帽22，凸柱形成于敲击头本体21。至于内圈242与外圈244采用何种方式固定安装，与上述实施例相似，在此不再赘述。It can be understood that, in another embodiment, the inner ring 242 of the bearing 24 can also be fixedly connected to the percussion head body 21, and the outer ring 244 of the bearing 24 can be fixedly connected to the percussion cap 22. In other words, the mounting groove is opened in the striking cap 22, and the boss is formed in the striking head body 21. As for how the inner ring 242 and the outer ring 244 are fixedly installed, it is similar to the foregoing embodiment, and will not be repeated here.

本发明的实施例中，打草头还包括传动结构(图未标)，该传动结构设置于敲击头本体21与壳体10之间。该传动结构被构造为在敲击头20沿壳体10的旋转轴线方向运动过程中连接或分离敲击头本体21和壳体10，从而可使敲击头本体21相对壳体10可旋转，进而实现敲击放线。In the embodiment of the present invention, the mowing head further includes a transmission structure (not marked in the figure), and the transmission structure is arranged between the percussion head body 21 and the housing 10. The transmission structure is configured to connect or separate the percussion head body 21 and the housing 10 during the movement of the percussion head 20 along the rotation axis direction of the housing 10, so that the percussion head body 21 can be rotated relative to the housing 10, And then realize the tapping line.

具体到实施例中，打草头包括打草状态及放线状态。当打草头处于打草状态时，传动结构可连接敲击头本体21和壳体10，以使敲击头本体21随壳体10可同步旋转。此时，打草机的驱动件驱动壳体10旋转，壳体10通过传动结构带动敲击头本体21同步旋转，敲击头本体21带动绕线盘本体32同步旋转，从而使得绕线盘本体32随壳体10同步旋转，进而带动缠绕于绕线盘本体32且由出线孔146穿出于壳体10的打草线100旋转而打草。Specifically, in the embodiment, the mowing head includes a mowing state and a line-off state. When the cutting head is in the grass cutting state, the transmission structure can connect the striking head body 21 and the housing 10 so that the striking head body 21 can rotate synchronously with the housing 10. At this time, the driver of the lawn mower drives the housing 10 to rotate. The housing 10 drives the percussion head body 21 to rotate synchronously through the transmission structure, and the percussion head body 21 drives the reel body 32 to rotate synchronously, thereby making the reel body 32 rotates synchronously with the housing 10 to drive the cutting line 100 wound around the reel body 32 and passing through the housing 10 through the outlet hole 146 to rotate to cut grass.

当打草头处于放线状态，传动结构可分离敲击头本体21和壳体10，以使敲击头本体21相对壳体10可旋转，即绕线盘本体32相对壳体10可旋转，从而释放缠绕于绕线盘本体32的打草线100，打草线100在离心力的作用下通过出线孔146继续穿出壳体10，实现放线。When the mowing head is in the line state, the transmission structure can separate the percussion head body 21 and the housing 10, so that the percussion head body 21 can rotate relative to the housing 10, that is, the reel body 32 can rotate relative to the housing 10. Thereby, the mowing wire 100 wound around the spool body 32 is released, and the mowing wire 100 continues to pass out of the housing 10 through the wire outlet hole 146 under the action of centrifugal force, and the wire is paid off.

图3示出了图1所示的打草头的底座的结构。Fig. 3 shows the structure of the base of the mowing head shown in Fig. 1.

请一并参见图3所示，具体到实施例中，传动结构包括两组第一传动部1220。其中一组第一传动部(图未示)设置于敲击头本体21，且沿敲击头本体21的周向间隔布设。其中另一组第一传动部1220设置于壳体10，且沿壳体10的周向间隔布设。两组第一传动部1220可相互啮合，以使敲击头本体21与壳体10可同步旋转。如此，当打草头处于打草状态时，两组第一传动部1220相互啮合，实现敲击头本体1220与壳体10的同步转动。当打草头处于放线状态时，敲击头本体21相对壳体10沿壳体10的旋转轴线方向运动，使得两组第一传动部1220脱离，从而在高速旋转的打草线100的拉动下实现绕线盘本体32及敲击头本体21与壳体10相对转动，进而实现放线。可选地，第一传动部1220可为凸起。Please refer to FIG. 3 together. Specifically, in the embodiment, the transmission structure includes two sets of first transmission parts 1220. One group of first transmission parts (not shown in the figure) are arranged on the percussion head body 21 and are arranged at intervals along the circumference of the percussion head body 21. The other group of first transmission parts 1220 are disposed on the housing 10 and are arranged at intervals along the circumference of the housing 10. The two sets of first transmission parts 1220 can be meshed with each other, so that the percussion head body 21 and the housing 10 can rotate synchronously. In this way, when the mowing head is in the mowing state, the two sets of first transmission parts 1220 mesh with each other to realize the synchronous rotation of the head body 1220 and the housing 10. When the mowing head is in the line state, the knocking head body 21 moves relative to the housing 10 along the rotation axis direction of the housing 10, so that the two sets of first transmission parts 1220 are separated, so that the high-speed rotating mowing line 100 is pulled The winding reel body 32 and the percussion head body 21 are relatively rotated with the housing 10 to realize the pay-off. Optionally, the first transmission portion 1220 may be a protrusion.

更加具体地，至少一组第一传动部1220具有相对壳体10的旋转轴线倾斜设置的斜面b，使得旋拧该操作部34可带动绕线盘本体32及敲击头本体21向朝向斜面b的方向相对壳体10转动。如此，在外力的作用下旋拧操作部34使绕线盘本体32及敲击头本体21向朝向斜面b的方向(即图3中上往下看的顺时针方向)相对壳体10转动，由于斜面b的设置，即两组第一凸起1220的接触面为斜面，因此在外力的作用下继续旋拧操作部34可使绕线盘本体32及敲击头本体21继续相对壳体10转动，从而实现将打草线100缠绕于绕线盘本体32。More specifically, at least one set of the first transmission portion 1220 has an inclined surface b that is arranged obliquely with respect to the rotation axis of the housing 10, so that screwing the operating portion 34 can drive the reel body 32 and the striking head body 21 to face the inclined surface b. The direction of rotation relative to the housing 10. In this way, under the action of external force, the operating portion 34 is rotated to rotate the reel body 32 and the striking head body 21 in the direction toward the inclined plane b (that is, the clockwise direction as viewed from the top in FIG. 3) relative to the housing 10. Due to the setting of the inclined plane b, that is, the contact surfaces of the two sets of first protrusions 1220 are inclined planes, so under the action of external force, continue to screw the operating portion 34 so that the reel body 32 and the percussion head body 21 continue to face the housing 10 Rotating, so as to wind the cutting line 100 around the reel body 32.

具体到实施例中，传动结构还包括一组第二传动部1222，该组第二传动部1222包括至少两个第二传动部1222。该组第二传动部1222设置于壳体10，且沿壳体10的周向间隔布设。其中，在壳体10的旋转轴线方向上，该组第二传动部1222与设置于壳体10的一组第一传动部1220错位位排布，以使在敲击敲击帽22时，敲击头本体21沿壳体10的旋转轴线方向运动，使得两组第一传动部1220分离，直到设置于敲击头本体21的第一传动部与第二传动部1222啮合。然后，敲击的外力消失，敲击头本体21沿壳体10的旋转轴线方向反向运动而复位，使得设置于敲击头本体21的第一传动部与第二传动部1222脱离，进而与设置于壳体10的第一传动部1220啮合。第二传动部1222的设置，便于控制每一次敲击放线过程中的放线的长度。可选地，第二传动部1222可为凸起。Specifically, in the embodiment, the transmission structure further includes a set of second transmission portions 1222, and the set of second transmission portions 1222 includes at least two second transmission portions 1222. The set of second transmission parts 1222 are disposed on the housing 10 and are arranged at intervals along the circumference of the housing 10. Wherein, in the direction of the axis of rotation of the housing 10, the set of second transmission parts 1222 and the set of first transmission parts 1220 provided in the housing 10 are arranged in a staggered arrangement, so that when the knock cap 22 is knocked, the knock The striking head body 21 moves along the rotation axis direction of the housing 10 so that the two sets of first transmission parts 1220 are separated until the first transmission part and the second transmission part 1222 provided on the striking head body 21 are engaged. Then, the external force of the percussion disappears, the percussion head body 21 moves in the reverse direction of the rotation axis of the housing 10 and resets, so that the first transmission part and the second transmission part 1222 provided in the percussion head body 21 are separated from each other. The first transmission part 1220 provided in the housing 10 engages. The setting of the second transmission part 1222 is convenient to control the length of the wire pay-off during each tapping process. Optionally, the second transmission portion 1222 may be a protrusion.

本发明的实施例中，绕线盘本体32沿周向随敲击头本体21同步旋转，且沿壳体10的旋转轴线方向可相对敲击头本体21运动。如此，当打草头处于放线状态时，敲击敲击帽22而使敲击头本体21沿壳体10的旋转轴线方向运动，传动结构分离敲击头本体21和壳体10，使得敲击头本体21相对壳体10旋转，即绕线盘本体32相对壳体10旋转，从而实现放线。由于绕线盘本体32沿壳体10的旋转轴线方向可相对敲击头本体21运动，可实现在放线过程中绕线盘本体32不跟随敲击头本体21沿壳体10的旋转轴线方向运动。In the embodiment of the present invention, the reel body 32 rotates synchronously with the percussion head body 21 in the circumferential direction, and can move relative to the percussion head body 21 along the rotation axis direction of the housing 10. In this way, when the mowing head is in the pay-off state, the tapping cap 22 will cause the tapping head body 21 to move along the rotation axis of the housing 10, and the transmission structure separates the tapping head body 21 and the housing 10 so that The beating head body 21 rotates relative to the housing 10, that is, the reel body 32 rotates relative to the housing 10, so as to realize the pay-off. Since the reel body 32 can move relative to the percussion head body 21 along the direction of the rotation axis of the housing 10, it can be realized that the reel body 32 does not follow the percussion head body 21 along the direction of the rotation axis of the housing 10 during the pay-off process. movement.

一些实施例中，绕线盘本体32设置于敲击头本体21。绕线盘本体32设有沿绕线盘本体32的周向间隔布设的多个第一传动齿(图未示)。敲击头本体21设有多个第二传动齿212。该多个第二传动齿212沿敲击头本体21的周向间隔布设。上述第一传动齿与第二传动齿212相互啮合，从而实现绕线盘本体32与敲击头本体21的同步转动。In some embodiments, the reel body 32 is disposed on the percussion head body 21. The reel body 32 is provided with a plurality of first transmission teeth (not shown) arranged at intervals along the circumference of the reel body 32. The percussion head body 21 is provided with a plurality of second transmission teeth 212. The plurality of second transmission teeth 212 are arranged at intervals along the circumferential direction of the percussion head body 21. The first transmission tooth and the second transmission tooth 212 mesh with each other, so as to realize the synchronous rotation of the reel body 32 and the striking head body 21.

具体到实施例中，第一传动齿及第二传动齿212均沿与壳体10的旋转轴线相平行的方向延伸，以使敲击头本体21沿壳体10的旋转轴线方向运动的过程中，第一传动齿与第二传动齿212的啮合不会妨碍敲击头本体21的运动，并且二者始终保持啮合。也就是说，在敲击头本体21沿壳体10的旋转轴线运动的过程中，第一传动齿与第二传动齿212始终保持啮合，使得敲击头本体21与绕线盘本体32始终保持可同步旋转。Specifically, in the embodiment, both the first transmission tooth and the second transmission tooth 212 extend in a direction parallel to the rotation axis of the housing 10, so that the percussion head body 21 moves in the direction of the rotation axis of the housing 10. , The meshing of the first transmission tooth and the second transmission tooth 212 will not hinder the movement of the percussion head body 21, and the two always keep meshing. That is to say, during the movement of the percussion head body 21 along the rotation axis of the housing 10, the first transmission tooth and the second transmission tooth 212 are always engaged, so that the percussion head body 21 and the reel body 32 are always maintained. Can rotate synchronously.

请一并参见图3所示，一些实施例中，打草头还包括固定设置于壳体10内的轴套122，轴套122的轴线与壳体10的旋转轴线共线。敲击头本体21设置于轴套122，传动结构设置于敲击头本体21与轴套122之间。如此，通过轴套122实现了敲击头本体21与壳体10的连接。Please also refer to FIG. 3. In some embodiments, the mowing head further includes a sleeve 122 fixedly disposed in the housing 10, and the axis of the sleeve 122 is collinear with the rotation axis of the housing 10. The percussion head body 21 is disposed on the shaft sleeve 122, and the transmission structure is disposed between the percussion head body 21 and the shaft sleeve 122. In this way, the connection between the percussion head body 21 and the housing 10 is achieved through the sleeve 122.

具体到实施例中，传动结构的上述两组第一传动部1220其中的一组设置于轴套122，其中另一组设置于敲击头本体21。第二传动部1222也设置于轴套122。Specifically, in the embodiment, one of the two groups of first transmission parts 1220 of the transmission structure is disposed on the sleeve 122, and the other group is disposed on the percussion head body 21. The second transmission part 1222 is also provided on the sleeve 122.

下面对本实施例中的打草头的工作过程进行详细的描述：打草头处于打草状态时，两组第一传动部1220相抵(即相啮合)，从而敲击头本体21与壳体10连接，使得敲击头本体21随壳体10同步转动，进而带动绕线盘本体32随壳体10同步转动，即打草头整体同步转动，实现打草。The working process of the mowing head in this embodiment will be described in detail below: when the mowing head is in the mowing state, the two sets of first transmission parts 1220 abut (that is, mesh), so that the striking head body 21 and the housing 10 The connection enables the percussion head body 21 to rotate synchronously with the housing 10, and then drives the reel body 32 to rotate synchronously with the housing 10, that is, the entire grass cutting head rotates synchronously to realize grass cutting.

当需要放线时(即打草头处于放线状态)，敲击敲击帽22，使得敲击头本体21沿壳体10的旋转轴线方向运动。首先设置于敲击头本体21的第一传动部由与设置于轴套122的第一传动部1220相抵的位置沿壳体10的旋转轴线移动至相邻两个第二凸起1222之间，此时敲击头本体21与轴套122之间具有转速差(由于驱动件始终驱动壳体10保持旋转，而绕线盘本体32在打草线100的拉动下与轴套122产生转速差，即敲击头本体21与轴套122之间具有转速差)，使得设置于敲击头本体21的第一传动部与第二传动部1222相抵。当敲击完成，作用于敲击帽22的外力消失，敲击头本体21可在下述弹性件40的作用下复位，使得设置于敲击头本体21的第一传动部再由与第二传动部1222相抵的位置沿壳体10的旋转轴线方向运动至，设置于轴套122的相邻的两个第一传动部1220之间，此时敲击头本体21与轴套122之间具有转速差，使得两组第一传动部相抵。由于设置于轴套122的第一传动部1220与第二传动部1222错位排布，因此敲击敲击帽22一次，敲击头本体21就相对于轴套122(即壳体10)旋转一定的角度(一般为设置于轴套122上的相邻两个第一凸台1220之间的角度差)，从而实现放线。When it is necessary to pay off the line (that is, the trimming head is in the payoff state), the tapping cap 22 is tapped so that the tapping head body 21 moves along the rotation axis direction of the housing 10. First, the first transmission part provided on the percussion head body 21 moves from a position abutting the first transmission part 1220 provided on the sleeve 122 along the rotation axis of the housing 10 to between two adjacent second protrusions 1222. At this time, there is a rotational speed difference between the percussion head body 21 and the shaft sleeve 122 (because the driver always drives the housing 10 to keep rotating, and the spool body 32 generates a rotational speed difference with the shaft sleeve 122 under the pulling of the cutting line 100, That is, there is a rotational speed difference between the percussion head body 21 and the sleeve 122), so that the first transmission portion and the second transmission portion 1222 provided on the percussion head body 21 abut against each other. When the percussion is completed, the external force acting on the percussion cap 22 disappears, and the percussion head body 21 can be reset under the action of the elastic member 40 described below, so that the first transmission part provided on the percussion head body 21 is again driven by the second transmission part. The position where the part 1222 abuts moves along the rotation axis of the housing 10 and is arranged between two adjacent first transmission parts 1220 of the sleeve 122. At this time, there is a rotational speed between the percussion head body 21 and the sleeve 122. The difference makes the two sets of first transmission parts offset. Since the first transmission portion 1220 and the second transmission portion 1222 provided on the sleeve 122 are arranged in a staggered arrangement, the percussion cap 22 is hit once, and the percussion head body 21 rotates relative to the sleeve 122 (that is, the housing 10). (Generally the angle difference between two adjacent first bosses 1220 provided on the sleeve 122), so as to realize the pay-off.

需要说明的是，在一个实施例中，敲击头本体21套设于轴套122的外侧，传动结构设置于敲击套本体21与轴套122之间。更加具体地，两组第一传动部1220分别设置于敲击头本体21的内壁和轴套122的外壁。第二传动部1222设置于轴套122的外壁。It should be noted that, in one embodiment, the percussion head body 21 is sleeved on the outside of the sleeve 122, and the transmission structure is provided between the percussion sleeve body 21 and the sleeve 122. More specifically, the two sets of first transmission parts 1220 are respectively provided on the inner wall of the percussion head body 21 and the outer wall of the sleeve 122. The second transmission part 1222 is disposed on the outer wall of the sleeve 122.

本发明的实施例中，打草头还包括弹性件40，弹性件40设置于壳体10与敲击头本体21之间，以提供使敲击头本体21具有朝向敲击帽22方向的运动趋势的预紧力。如此，使得敲击放线过程中，作用于敲击帽22的外力消失时，敲击头本体21能够在弹性件40的弹力作用下回复至敲击之前的位置(即复位)。In the embodiment of the present invention, the mowing head further includes an elastic member 40, and the elastic member 40 is arranged between the housing 10 and the striking head body 21 to provide the striking head body 21 with movement toward the striking cap 22. Preload of the trend. In this way, when the external force acting on the percussion cap 22 disappears during the tapping and wire setting process, the percussion head body 21 can be restored to the position before tapping (ie, reset) under the elastic force of the elastic member 40.

具体到一个实施例中，弹性件40沿壳体10的旋转轴线方向的相对两端分别抵接于轴套122及敲击头本体21，以提供使敲击头本体21具有沿壳体10的旋转轴线向穿出壳体10的方向的运动趋势的预紧力。可选地，弹性件40可为弹簧。Specifically, in one embodiment, the opposite ends of the elastic member 40 along the rotation axis direction of the housing 10 abut against the sleeve 122 and the striking head body 21, respectively, so as to provide the striking head body 21 with an edge along the housing 10 The pretension force of the movement tendency of the rotation axis in the direction passing through the housing 10. Optionally, the elastic member 40 may be a spring.

进一步地，敲击头本体21套设于轴套122的外侧。轴套122的外侧壁设置有第一环形挡圈d(见图1及图3)。敲击头本体21的内侧壁设置有可与第一环形挡圈d相配合的第二环形挡圈f(见图1)，以通过第一环形挡圈d与第二环形挡圈f的配合防止敲击头本体21在弹性件40的弹力作用下由轴套122的端部脱离该轴套122。可以理解的是，第一环形挡圈d绕轴套122的周向延伸，第二环形挡圈f绕敲击头本体21的周向延伸。Furthermore, the percussion head body 21 is sleeved on the outside of the sleeve 122. The outer side wall of the sleeve 122 is provided with a first annular retaining ring d (see Figure 1 and Figure 3). The inner side wall of the percussion head body 21 is provided with a second annular retaining ring f (see FIG. 1) that can be matched with the first annular retaining ring d, so as to cooperate with the first annular retaining ring d and the second annular retaining ring f The percussion head body 21 is prevented from being separated from the shaft sleeve 122 by the end of the sleeve 122 under the elastic force of the elastic member 40. It can be understood that the first annular retaining ring d extends around the circumference of the sleeve 122 and the second annular retaining ring f extends around the circumference of the percussion head body 21.

请一并参见图1、图2及图3所示，本发明的实施例中，壳体10包括底座12及壳盖14，该底座12与壳盖14相互扣合形成上述收容腔。如此，将壳体10设计为由底座12和壳盖14 组成，便于对壳体10进行拆装，有利于对打草头进行维护、检修等。具体地，轴套122收容于收容腔，且固定连接于底座12。供敲击帽22及操作部34穿出壳体14的开口142开设于该壳盖14。Please refer to FIGS. 1, 2 and 3 together. In the embodiment of the present invention, the housing 10 includes a base 12 and a cover 14, and the base 12 and the cover 14 are buckled with each other to form the aforementioned receiving cavity. In this way, the housing 10 is designed to be composed of the base 12 and the cover 14, which facilitates disassembly and assembly of the housing 10, and facilitates maintenance and repair of the mowing head. Specifically, the sleeve 122 is received in the receiving cavity and is fixedly connected to the base 12. The opening 142 through which the knocking cap 22 and the operating portion 34 pass through the housing 14 is opened in the housing cover 14.

可选地，底座12与壳盖14可卡接连接。具体到一个实施例中，底座12具有轴套122的一侧凸设有至少两个卡柱124，壳盖14对应于卡柱124的位置开设有卡槽144。装配底座12和壳盖14时，将卡柱124对准卡槽144并***卡槽144，从而实现底座12与壳盖14的卡接。需要说明的是，在另一个实施例中，卡柱124也可设置于壳盖14，而卡槽144则设置在底座12。对于卡柱124及卡槽144的设置位置，能实现底座12与壳盖14卡接连接即可，在此不作限定。Optionally, the base 12 and the cover 14 can be snap-connected. Specifically, in one embodiment, the base 12 has at least two clamping posts 124 protruding from one side of the sleeve 122, and the housing cover 14 defines a clamping slot 144 at a position corresponding to the clamping posts 124. When assembling the base 12 and the cover 14, the clamping post 124 is aligned with the card slot 144 and inserted into the card slot 144, so that the base 12 and the cover 14 are clamped together. It should be noted that, in another embodiment, the locking column 124 can also be provided on the cover 14, and the locking slot 144 can be provided on the base 12. Regarding the position of the clamping post 124 and the clamping slot 144, the base 12 and the cover 14 can be clamped and connected, which is not limited here.

本发明的实施例中，壳体10内设置有至少两个限位部148(见图1)，该至少两个限位部148分别位于绕线盘本体32沿壳体10的旋转轴线方向上的两端，并与对应的绕线盘本体32的端部接触，以限制绕线盘本体32沿壳体10的旋转轴线方向移动。具体到实施例中，限位部148分别设置于壳盖14及底座12。其中，设置于壳盖14的限位部148用于限制绕线盘本体32沿壳体10的旋转轴线朝向开口142的方向运动，设置于底座12的限位部148用于限制绕线盘本体32沿壳体10的旋转轴线背离开口142的方向移动。需要说明的是，在图1所示的打草头的剖视结构中仅示出了设置在壳盖14上的限位部148。In the embodiment of the present invention, the housing 10 is provided with at least two limiting portions 148 (see FIG. 1), and the at least two limiting portions 148 are respectively located in the direction of the reel body 32 along the axis of rotation of the housing 10. The two ends of the spool are in contact with the ends of the corresponding spool body 32 to restrict the spool body 32 from moving along the rotation axis of the housing 10. Specifically, in the embodiment, the limiting portion 148 is respectively disposed on the cover 14 and the base 12. Wherein, the limiting portion 148 provided on the shell cover 14 is used to restrict the movement of the reel body 32 along the rotation axis of the housing 10 toward the opening 142, and the limiting portion 148 provided on the base 12 is used to restrict the reel body 32 moves along the rotation axis of the housing 10 in a direction away from the port 142. It should be noted that in the cross-sectional structure of the mowing head shown in FIG. 1, only the limiting portion 148 provided on the housing cover 14 is shown.

需要说明的是，限位部148不是必须地，也可使绕线盘本体32沿壳体10的旋转轴线方向的相对两端分别与底座12及壳盖14接触，以限制绕线盘本体32沿壳体10的旋转轴线方向运动。It should be noted that the limiting portion 148 is not necessary. The opposite ends of the reel body 32 along the axis of rotation of the housing 10 can be in contact with the base 12 and the cover 14 respectively to restrict the reel body 32. It moves in the direction of the rotation axis of the housing 10.

图4示出了图1所示的打草头的绕线盘的结构。Fig. 4 shows the structure of the bobbin of the mowing head shown in Fig. 1.

请一并参见图4所示，本发明的实施例中，绕线盘本体32包括绕线轴(图未示)及固定连接于绕线轴的隔缘322。隔缘322沿绕线轴的周向延伸，以在绕线轴上形成位于隔缘322相对两侧的第一绕线区324和第二绕线区326。Please also refer to FIG. 4. In the embodiment of the present invention, the reel body 32 includes a bobbin (not shown) and a spacer 322 fixedly connected to the bobbin. The spacer 322 extends along the circumferential direction of the bobbin to form a first winding area 324 and a second winding area 326 located on opposite sides of the spacer 322 on the bobbin.

出线孔146的个数为两个，两个出线孔146相对设置。插线开口3222成对地设置于隔缘322上，且包括至少一对适于与出线孔146对齐的插线开口3222。每一对插线开口3222的其中一个插线开口3222连通于第一绕线区324，其中另一个插线开口3222连通于第二绕线区326。The number of the outlet holes 146 is two, and the two outlet holes 146 are arranged oppositely. The wire insertion openings 3222 are provided in pairs on the partition 322 and include at least one pair of wire insertion openings 3222 adapted to be aligned with the outlet holes 146. One of the wire insertion openings 3222 of each pair of wire insertion openings 3222 is connected to the first winding area 324, and the other wire insertion opening 3222 is connected to the second winding area 326.

在其中一实施例中，插线开口3222的数量为两个，两个插线开口3222呈180度对称设置在隔缘322上。In one of the embodiments, the number of the wire insertion openings 3222 is two, and the two wire insertion openings 3222 are symmetrically arranged on the partition 322 at 180 degrees.

如此，由与第一绕线区324连通的插线开口3222穿出的打草线100的一端缠绕于第一绕线区324，并由对应的出线孔146穿出壳体10。由与第二绕线区326连通的插线开口3222穿出的打草线100的一端缠绕于第二绕线区326，并由另一个出线孔146穿出壳体10。In this way, one end of the grass trimming line 100 passed through the wire insertion opening 3222 connected with the first winding area 324 is wound around the first winding area 324 and passes out of the housing 10 through the corresponding outlet hole 146. One end of the mowing thread 100 passed through the thread insertion opening 3222 communicating with the second winding area 326 is wound around the second winding area 326, and passes out of the housing 10 through another outlet hole 146.

需要说明的是，两个出线孔相对设置，并不是仅包括完全相对的情况，还应包括存在一定的误差范围的情况。It should be noted that the relative arrangement of the two outlet holes does not only include the situation that is completely opposite, but also the situation that there is a certain error range.

在一个实施例中，插线开口用于夹持打草线的末端，并适于将打草线的末端紧逼于插线开口3222内。如此，需要设置两条打草线100，其中一条打草线100的一端***并紧逼于与第一绕线区324连通的插线开口3222内，且缠绕于该第一绕线区324，另一端由对应的出线孔146穿出壳体10外；其中另一条打草线100的一端***并紧逼于与第二绕线区326连通的插线开口3222内，且缠绕于该第二绕线区326，另一端由对应的出线孔146穿出壳体10外。In one embodiment, the thread insertion opening is used to clamp the end of the cutting line and is adapted to press the end of the cutting line into the insertion opening 3222. In this way, two weeding lines 100 need to be provided, one end of one of the weeding lines 100 is inserted into and pressed tightly into the wire insertion opening 3222 connected to the first winding area 324, and is wound around the first winding area 324, The other end passes through the corresponding outlet hole 146 out of the housing 10; one end of the other mowing line 100 is inserted into and pressed tightly into the wire insertion opening 3222 communicating with the second winding area 326, and is wound around the second The other end of the winding area 326 passes out of the housing 10 through a corresponding outlet hole 146.

在另一个实施例中，一对插线开口3222相互连通，相互连通的路径形成一个穿线通道。打草线100能够由其中一个出线孔146***，穿过该穿线通道，并自其中另一个出线孔146穿出。如此，由于一对插线开口3222通过穿线通道连通，因此可只需要一条打草线100，安装该条打草线100时，可将打草线100的一端由壳体10上的一穿线孔146穿入，并由对应的一插线开口3222穿入穿线通道。然后由另一插线开口3222穿出，进而从另一穿线孔146穿出壳体10外。再然后，手动转动操作部34，使得绕线盘本体32相对壳体10绕旋转轴线转动，实现将打草绳100的两端分别缠绕于第一绕线区324和第二绕线区326。如此，可在不拆卸打草头的壳体10的情况下实现装线，有利于简化打草机的操作，提高使用的便捷性。需要说明的是，穿线通过弯曲延伸，以绕过绕线轴的用于套设敲击头本体21的中心孔(图未标)。In another embodiment, a pair of wire insertion openings 3222 communicate with each other, and the communicating path forms a wire passage. The cutting line 100 can be inserted through one of the outlet holes 146, pass through the threading channel, and pass through the other outlet hole 146. In this way, because the pair of wire insertion openings 3222 are connected through the threading channel, only one mowing wire 100 is needed. When the mowing wire 100 is installed, one end of the mowing wire 100 can be passed through a threading hole on the housing 10. 146 penetrates into the threading channel through a corresponding thread insertion opening 3222. Then pass through another wire insertion opening 3222, and then pass through another wire insertion hole 146 out of the housing 10. Then, the operating portion 34 is manually rotated, so that the reel body 32 rotates about the rotation axis relative to the housing 10, so that both ends of the mowing rope 100 are wound around the first winding area 324 and the second winding area 326 respectively. In this way, the wire assembly can be realized without disassembling the casing 10 of the mowing head, which is beneficial to simplify the operation of the mowing machine and improve the convenience of use. It should be noted that the threading is extended by bending so as to bypass the central hole (not shown in the figure) of the spool for covering the percussion head body 21.

图5示出了在该实施例中敲击头的结构图，敲击头本体21的外周表面向内凹陷形成导线凹槽213，导线凹槽213绕过敲击头本体21的中心轴线，围绕敲击头本体21外周半圈，导线凹槽21的一端与一对插线开口3222的其中一个插线开口3222对齐连通，导向凹槽21的另一端与其中另一个插线开口3222对齐连通。绕线盘30套设在敲击头20上，绕线盘本体32的内壁与导线凹槽213配合限定出穿线通道。在该实施例中，导线凹槽213呈半环形，半环形所在的平面大致垂直于旋转轴线，敲击头本体还包括与导线凹槽213对称设置的半环形的配平凹槽(未示出)，配平凹槽与导线凹槽213共同围绕敲击头本体外周一圈。配平凹槽使得敲击头本体的质心保持在旋转轴线上，不会因为导线凹槽213的开设导致敲击头本体质量中心偏移其几何中心，如此，保证在打草过程中敲击头的平稳性，降低震动和噪声。5 shows the structure of the percussion head in this embodiment. The outer peripheral surface of the percussion head body 21 is recessed inward to form a wire groove 213. The wire groove 213 bypasses the central axis of the percussion head body 21 and surrounds The percussion head body 21 has a half circle around it, one end of the wire groove 21 is aligned and communicated with one of the pair of wire insertion openings 3222, and the other end of the guide groove 21 is aligned and communicated with the other of the wire insertion openings 3222. The reel 30 is sleeved on the percussion head 20, and the inner wall of the reel body 32 cooperates with the wire groove 213 to define a threading channel. In this embodiment, the wire groove 213 has a semi-annular shape, and the plane of the semi-annular shape is substantially perpendicular to the axis of rotation. The percussion head body also includes a semi-annular trim groove (not shown) symmetrically arranged with the wire groove 213 , The trim groove and the wire groove 213 surround the percussion head body. The trim groove keeps the center of mass of the percussion head body on the axis of rotation, and the opening of the wire groove 213 will not cause the center of mass of the percussion head body to deviate from its geometric center. In this way, the percussion head can be ensured during the grass cutting process. Stability, reduce vibration and noise.

可以理解的是，两个出线孔打草相对设置指的是：两个出线孔146关于壳体10的旋转轴线(即轴套122的轴线)大致对称设置，使得打草头旋转过程中受力均匀，旋转稳定性好。It can be understood that the arrangement of the two outlet holes for grass cutting means that the two outlet holes 146 are arranged approximately symmetrically with respect to the rotation axis of the housing 10 (that is, the axis of the shaft sleeve 122), so that the grass cutting head receives force during rotation. Uniformity and good rotation stability.

具体到实施例中，绕线轴为两端开口的筒体结构，套设于敲击头本体21的外侧。Specifically, in the embodiment, the spool is a cylindrical structure with open ends, and is sleeved on the outside of the percussion head body 21.

具体到实施例中，绕线盘本体32还包括固定连接于绕线轴相对两端的两个凸缘328，且凸缘328沿绕线轴的周向延伸，以防止缠绕于第一绕线区324和第二绕线区326的打草线100 从绕线轴的相对两端脱离绕线轴。可以理解的是，隔缘322位于两个凸缘328之间。Specifically, in the embodiment, the bobbin body 32 further includes two flanges 328 fixedly connected to opposite ends of the bobbin, and the flanges 328 extend along the circumference of the bobbin to prevent winding around the first winding area 324 and The cutting line 100 of the second winding area 326 is separated from the winding shaft from opposite ends of the winding shaft. It can be understood that the spacer 322 is located between the two flanges 328.

基于上述打草头，本发明还提供一种打草机1，请参见图6，该打草机1包括如上任一实施例中所述的打草头。Based on the above mowing head, the present invention also provides a mowing machine 1, please refer to FIG. 6. The mowing machine 1 includes the mowing head as described in any of the above embodiments.

具体到实施例中，打草机1还包括延长杆6以及设置在延长杆6一端的后端壳体8和设置在延长杆另一端的打草头。打草机1还包括设置在延长杆6上手柄，包括间隔一定距离设置的辅助手柄7和主手柄9，用户通过主手柄9和辅助手柄7将打草机100提起使打草线100沿其旋转形成的切割面打草。还包括设置在后端壳体8内的驱动件，驱动件的输出轴装配于轴套122内，以驱动壳体10旋转。驱动件的输出轴与轴套122的装配方式有多种，例如螺栓连接、紧配、键连接，只要能够实现可驱动壳体10旋转即可，在此不作限定。可选地，驱动件可为马达。本实施例中，延长杆6远离打草头的一端设置有电源，具体为直流电源，直流电源采用的是电池包，优选为锂电池包。电池包可拆卸的连接在后端壳体8上。由此，直流电源和打草头分设于延长杆6的两端，而手柄设置在延长杆6上相对靠近驱动件的位置，从而整个打草机1重心布局合理，操作者通过手柄提起打草机100工作时可以较为省力。Specifically, in the embodiment, the lawn mower 1 further includes an extension rod 6 and a rear end housing 8 provided at one end of the extension rod 6 and a grass trimming head provided at the other end of the extension rod. The lawn mower 1 also includes a handle arranged on the extension rod 6, including an auxiliary handle 7 and a main handle 9 arranged at a certain distance. The user lifts the lawn mower 100 through the main handle 9 and the auxiliary handle 7 so that the cutting line 100 is The cutting surface formed by rotation cuts grass. It also includes a driving member arranged in the rear housing 8, and the output shaft of the driving member is assembled in the sleeve 122 to drive the housing 10 to rotate. There are many ways of assembling the output shaft of the driving member and the sleeve 122, such as bolt connection, tight fitting, and key connection, as long as the housing 10 can be driven to rotate, which is not limited here. Alternatively, the driving member may be a motor. In this embodiment, an end of the extension rod 6 away from the cutting head is provided with a power source, specifically a DC power source, and the DC power source is a battery pack, preferably a lithium battery pack. The battery pack is detachably connected to the rear housing 8. Therefore, the DC power supply and the mowing head are separately arranged at the two ends of the extension rod 6, and the handle is arranged on the extension rod 6 relatively close to the driving part, so that the center of gravity of the entire lawn mower 1 is reasonably arranged, and the operator lifts the mowing through the handle The machine 100 can save effort when working.

以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are more specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

打草头，其特征在于，包括：Da Caotou is characterized by:

壳体，具有收容腔以及供打草线由所述收容腔穿出的出线孔；The housing has a receiving cavity and an outlet hole for the mowing line to pass through the receiving cavity;

敲击头，包括敲击头本体，所述敲击头本体设置于所述收容腔，且可选的随所述壳体同步旋转；所述敲击头本体被构造为可操作地沿所述壳体的旋转轴线方向往复运动，且在往复运动过程中所述敲击头本体可与所述壳体连接或分离，所述敲击头本体与所述壳体分离时，所述敲击头本体可相对所述壳体旋转以放线；及The percussion head includes a percussion head body, the percussion head body is arranged in the accommodating cavity and optionally rotates synchronously with the housing; the percussion head body is configured to operably move along the The rotation axis of the housing reciprocates, and the percussion head body can be connected to or separated from the housing during the reciprocating movement. When the percussion head body is separated from the housing, the percussion head The main body can rotate relative to the casing to pay off the wire; and

绕线盘，包括绕线盘本体；所述绕线盘本体设置于所述收容腔；所述绕线盘本体包括至少一对插线开口，所述插线开口能够与所述出线孔对齐，以允许所述打草线由所述出线孔***所述插线开口；所述绕线盘本体在所述收容腔内被轴向限位保持，使得所述插线开口与所述出线孔在所述旋转轴线方向上不发生相对位移；The reel includes a reel body; the reel body is disposed in the receiving cavity; the reel body includes at least a pair of wire insertion openings, and the wire insertion openings can be aligned with the outlet holes, In order to allow the cutting line to be inserted into the wire insertion opening through the outlet hole; the bobbin body is axially limited and held in the receiving cavity, so that the wire insertion opening and the outlet hole No relative displacement occurs in the direction of the rotation axis;

一对所述插线开口相互连通，相互连通的路径形成一个穿线通道，所述打草线能够由其中一个所述出线孔***，穿过所述穿线通道，并自其中另一个所述出线孔穿出；A pair of the wire insertion openings communicate with each other, and the mutually communicating paths form a threading channel. The grass trimming line can be inserted through one of the threading holes, passing through the threading channel, and passing through the other of the threading holes. Pass out

所述敲击头本体的周向外表面向内凹陷形成导线凹槽，所述导线凹槽的一端与一对所述插线开口的其中一个所述插线开口对齐连通，所述导向凹槽的另一端与其中另一个所述插线开口对齐连通，所述绕线盘本体的内壁与所述导线凹槽配合限定出所述穿线通道；The outer surface of the percussion head body is recessed inward to form a wire groove, one end of the wire groove is aligned and communicated with one of the pair of wire insertion openings, and the guide groove The other end is aligned and communicated with the other of the wire insertion openings, and the inner wall of the reel body cooperates with the wire groove to define the wire passing channel;

所述绕线盘还包括连接于所述绕线盘本体的操作部，所述操作部穿出于所述壳体外用于供用户进行旋转绕线操作，所述操作部在所述旋转绕线操作过程中不发生所述旋转轴线方向上的运动。The reel further includes an operating part connected to the main body of the reel, the operating part penetrates out of the housing for a user to perform a rotating winding operation, and the operating part No movement in the direction of the rotation axis occurs during operation.
根据权利要求1所述的打草头，其特征在于，所述绕线盘套设在所述敲击头本体外，所述绕线盘随着所述敲击头本体的旋转运动而同步转动，所述敲击头本体在所述旋转轴线方向上运动并不会导致所述绕线盘的在所述旋转轴线方向上的相应运动。The mowing head according to claim 1, wherein the reel is sleeved outside the body of the percussion head, and the reel rotates synchronously with the rotation of the percussion head body The movement of the percussion head body in the direction of the rotation axis does not cause the corresponding movement of the reel in the direction of the rotation axis.
根据权利要求1所述的打草头，其特征在于，所述插线开口的数量为两个，两个所述插线开口呈180度对称设置在所述隔缘上。The mowing head according to claim 1, wherein the number of the wire insertion openings is two, and the two wire insertion openings are symmetrically arranged on the partition edge at 180 degrees.
根据权利要求1所述的打草头，其特征在于，所述敲击头还包括敲击帽，所述敲击帽绕所述壳体的旋转轴线可转动地连接于所述敲击头本体，且至少部分穿出于所述壳体。The mowing head according to claim 1, wherein the percussion head further comprises a percussion cap, and the percussion cap is rotatably connected to the percussion head body around the rotation axis of the housing , And at least partly penetrate the shell.
打草头，其特征在于，包括：Da Caotou is characterized by:

壳体，具有收容腔以及供打草线由所述收容腔穿出的出线孔；The housing has a receiving cavity and an outlet hole for the mowing line to pass through the receiving cavity;

敲击头，包括敲击头本体，所述敲击头本体设置于所述收容腔，且可选的随所述壳体同步旋转；所述敲击头本体被构造为可操作地沿所述壳体的旋转轴线方向往复运动，且在往复运动过程中所述敲击头本体可与所述壳体连接或分离，所述敲击头本体与所述壳体分离时，所述敲击头本体可相对所述壳体旋转以放线；及The percussion head includes a percussion head body, the percussion head body is arranged in the accommodating cavity and optionally rotates synchronously with the housing; the percussion head body is configured to operably move along the The rotation axis of the housing reciprocates, and the percussion head body can be connected to or separated from the housing during the reciprocating movement. When the percussion head body is separated from the housing, the percussion head The main body can rotate relative to the casing to pay off the wire; and

绕线盘，包括绕线盘本体；所述绕线盘本体设置于所述收容腔；所述绕线盘本体包括插线开口，所述插线开口能够与所述出线孔对齐，以允许所述打草线由所述出线孔***所述插线开口；The spool includes a spool body; the spool body is disposed in the receiving cavity; the spool body includes a wire insertion opening that can be aligned with the wire outlet hole to allow The grass cutting line is inserted into the wire insertion opening through the outlet hole;

所述绕线盘还包括连接于所述绕线盘本体的操作部，所述操作部穿出于所述壳体外用于供用户进行旋转绕线操作，所述操作部在所述旋转绕线操作过程中不发生所述旋转轴线方向上的运动。The reel further includes an operating part connected to the main body of the reel, the operating part penetrates out of the housing for a user to perform a rotating winding operation, and the operating part No movement in the direction of the rotation axis occurs during operation.
根据权利要求5所述的打草头，其特征在于，所述绕线盘套设在所述敲击头本体外，所述绕线盘随着所述敲击头本体的旋转运动而同步转动，所述敲击头本体在所述旋转轴线方向上运动并不会导致所述绕线盘的在所述旋转轴线方向上的相应运动。The mowing head according to claim 5, wherein the reel is sleeved outside the percussion head body, and the reel rotates synchronously with the rotation of the percussion head body The movement of the percussion head body in the direction of the rotation axis does not cause the corresponding movement of the reel in the direction of the rotation axis.
根据权利要求5所述的打草头，其特征在于，所述绕线盘本体在所述收容腔内被轴向限位保持，使得所述插线开口与所述出线孔在所述旋转轴线方向上不发生相对位移。The mowing head according to claim 5, wherein the bobbin body is axially limited and held in the receiving cavity, so that the wire insertion opening and the wire outlet hole are in the rotation axis No relative displacement occurs in the direction.
根据权利要求5所述的打草头，其特征在于，所述绕线盘本体包括绕线轴及固定连接于所述绕线轴的隔缘，所述隔缘沿所述绕线轴的周向延伸，以在所述绕线轴上形成位于所述隔缘相对两侧的第一绕线区和第二绕线区；The mowing head according to claim 5, wherein the bobbin body includes a bobbin and a spacer fixedly connected to the bobbin, the spacer extending in the circumferential direction of the bobbin, To form a first winding area and a second winding area located on opposite sides of the spacer on the winding shaft;

所述出线孔的个数为两个，两个所述出线孔相对设置；所述插线开口成对地设置于所述隔缘上，且包括至少一对适于与所述出线孔对齐的所述插线开口；The number of the outlet holes is two, and the two outlet holes are arranged opposite to each other; the insertion openings are arranged in pairs on the partition edge, and include at least one pair suitable for aligning with the outlet holes The plug-in opening;

每一对所述插线开口的其中一个所述插线开口连通于所述第一绕线区，其中另一个所述插线开口连通于所述第二绕线区。One of the wire insertion openings of each pair of the wire insertion openings is connected to the first winding area, and the other of the wire insertion openings is connected to the second winding area.
根据权利要求8所述的打草头，其特征在于，一对所述插线开口相互连通，相互连通的路径形成一个穿线通道，所述打草线能够由其中一个所述出线孔***，穿过所述穿线通道，并自其中另一个所述出线孔穿出。The mowing head according to claim 8, wherein a pair of the wire insertion openings communicate with each other, and the communicating paths form a threading channel, and the mowing line can be inserted through one of the wire outlet holes. Pass through the threading channel and pass through another of the threading holes.
根据权利要求9所述的打草头，其特征在于，所述敲击头本体的周向外表面向内凹陷形成导线凹槽，所述导线凹槽的一端与一对所述插线开口的其中一个所述插线开口对齐连通，所述导向凹槽的另一端与其中另一个所述插线开口对齐连通，所述绕线盘本体的内壁与所述导线凹槽配合限定出所述穿线通道。The mowing head according to claim 9, wherein the peripheral surface of the percussion head body is recessed inward to form a wire groove, and one end of the wire groove is connected to a pair of the wire insertion openings. One of the wire insertion openings is aligned and communicated, the other end of the guide groove is aligned and communicated with the other of the wire insertion openings, and the inner wall of the reel body cooperates with the wire groove to define the threading channel .
根据权利要求5所述的打草头，其特征在于，所述插线开口的数量为两个，两个所述插线开口呈180度对称设置在所述隔缘上。The mowing head according to claim 5, wherein the number of the wire insertion openings is two, and the two wire insertion openings are symmetrically arranged on the partition edge at 180 degrees.
根据权利要求5所述的打草头，其特征在于，所述敲击头还包括敲击帽，所述敲击帽绕所述壳体的旋转轴线可转动地连接于所述敲击头本体，且至少部分穿出于所述壳体。The cutting head according to claim 5, wherein the striking head further comprises a striking cap, and the striking cap is rotatably connected to the striking head body about the rotation axis of the housing , And at least partly penetrate the shell.
根据权利要求12所述的打草头，其特征在于，所述敲击头还包括轴承，所述轴承安装于所述敲击头本体与所述敲击帽之间，以使所述敲击帽相对所述敲击头本体可转动。The grass cutting head according to claim 12, wherein the striking head further comprises a bearing, and the bearing is installed between the striking head body and the striking cap so that the striking head The cap is rotatable relative to the percussion head body.
根据权利要求12所述的打草头，其特征在于，所述打草头还包括弹性件，所述弹性件设置于所述壳体与所述敲击头本体之间，以提供使所述敲击头本体具有朝向所述敲击帽方向的运动趋势的预紧力。The mowing head according to claim 12, wherein the mowing head further comprises an elastic member, and the elastic member is arranged between the housing and the striking head body to provide the The percussion head body has a pretension force that moves toward the direction of the percussion cap.
根据权利要求5所述的打草头，其特征在于，所述打草头还包括设置于所述敲击头本体与所述壳体之间的传动结构；The mowing head according to claim 5, wherein the mowing head further comprises a transmission structure arranged between the main body of the striking head and the housing;

所述打草头包括打草状态及放线状态；The grass cutting head includes a grass cutting state and a line setting state;

当打草头处于所述打草状态，所述传动结构连接所述敲击头本体和所述壳体，以使所述敲击头随所述壳体可同步旋转；When the cutting head is in the cutting state, the transmission structure connects the main body of the striking head and the housing, so that the striking head can rotate synchronously with the housing;

当所述打草头处于所述放线状态，所述传动结构分离所述敲击头本体和所述壳体，以使所述敲击头相对所述壳体可旋转。When the cutting head is in the pay-off state, the transmission structure separates the striking head body and the housing, so that the striking head can rotate relative to the housing.
根据权利要求5所述的打草头，其特征在于，所述绕线盘本体连接于所述敲击头本体，所述绕线盘本体设有沿所述绕线盘本体的周向布设的多个第一传动齿，所述敲击头本体设有沿所述敲击头本体的周向布设的多个第二传动齿；The mowing head according to claim 5, wherein the spool body is connected to the percussion head body, and the spool body is provided with a spool arranged along the circumference of the spool body. A plurality of first transmission teeth, the percussion head body is provided with a plurality of second transmission teeth arranged along the circumference of the percussion head body;

所述第一传动齿与所述第二传动齿相啮合，以使所述绕线盘本体与所述敲击头本体可同步转动。The first transmission tooth meshes with the second transmission tooth, so that the reel body and the striking head body can rotate synchronously.
根据权利要求16所述的打草头，其特征在于，所述第一传动齿及所述第二传动齿均沿与所述壳体的旋转轴线相平行的方向延伸，以使在所述敲击头本体沿所述壳体的旋转轴线方向运动的过程中所述第一传动齿与第二传动齿保持啮合。The mowing head according to claim 16, wherein the first transmission tooth and the second transmission tooth both extend in a direction parallel to the rotation axis of the housing, so that the The first transmission tooth and the second transmission tooth keep meshing during the movement of the head body along the rotation axis direction of the housing.
一种打草机，其特征在于，包括如权利要求5至17中任一项所述的打草头。A lawn mower, characterized by comprising the lawn mower according to any one of claims 5 to 17.