CN211020024U - Small hand-push type lawnmower - Google Patents

Small hand-push type lawnmower Download PDF

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CN211020024U
CN211020024U CN201822254560.6U CN201822254560U CN211020024U CN 211020024 U CN211020024 U CN 211020024U CN 201822254560 U CN201822254560 U CN 201822254560U CN 211020024 U CN211020024 U CN 211020024U
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frame
reel
hand
wheel
blade
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楼纪国
刘刚强
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Shanghai Jian Qiao University
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Shanghai Jian Qiao University
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Abstract

本实用新型涉及一种手推式小型剪草机,包括车架、切割装置、草屑收集装置和换向装置,其中:车架上设有车轮和推拉机构;切割装置由相匹配的固定刀片和活动刀片组成,固定刀片固定于车架前端;草屑收集装置由与切割装置匹配设置的拨禾轮以及设置于拨禾轮后方的收纳箱组成,拨禾轮通过转动轴与车架可转动连接,并随车轮转动;换向装置用于将车轮的转动运动转换为活动刀片的横向往复运动。与现有技术相比,本实用新型具有质量轻、操作简单、噪音低、成本低、剪切运行稳定、低碳环保、适应性好等优点。

Figure 201822254560

The utility model relates to a hand-pushed small lawnmower, comprising a frame, a cutting device, a grass clipping collection device and a reversing device, wherein: the frame is provided with wheels and a push-pull mechanism; the cutting device is composed of a matching fixed blade It consists of a movable blade, and the fixed blade is fixed at the front end of the frame; the grass cutting device is composed of a reel matched with the cutting device and a storage box arranged behind the reel. The reel can be rotated through the rotating shaft and the frame. It is connected and rotates with the wheel; the reversing device is used to convert the rotational motion of the wheel into the lateral reciprocating motion of the movable blade. Compared with the prior art, the utility model has the advantages of light weight, simple operation, low noise, low cost, stable shearing operation, low carbon and environmental protection, good adaptability and the like.

Figure 201822254560

Description

一种手推式小型剪草机A small hand push lawnmower

技术领域technical field

本实用新型涉及一种剪草机,尤其是涉及一种手推式小型剪草机。The utility model relates to a lawnmower, in particular to a hand-pushed small lawnmower.

背景技术Background technique

目前市面上的手推式的剪草机大多采用动力机器引擎,传动方式主要分为:滚刀式,旋刀式,甩刀式,甩绳式。这样的剪草机会产生较大的噪音,带来环境污染,特别是在办公和学习的地方,这种需动力引擎的剪草机就显得非常不受欢迎。由于动力引擎剪草机有动力装置,保养,维护费用较高;同时动力引擎剪草机主要依靠刀片的高速旋转把草排出,因此,对整机的安全性要求较高,操作时也会给工作人员带强烈的震动,长时间操作使人感觉不适。At present, most of the hand-push lawnmowers on the market use power machine engines, and the transmission methods are mainly divided into: hob type, rotary blade type, blade type, and rope type. Such lawnmowers will generate a lot of noise and cause environmental pollution, especially in offices and study places, such lawnmowers that require a power engine are very unpopular. Because the power engine lawnmower has a power device, the maintenance and maintenance costs are relatively high; at the same time, the power engine lawnmower mainly relies on the high-speed rotation of the blade to discharge the grass, so the safety requirements of the whole machine are higher, and the operation will also give Staff with strong vibration, long-term operation makes people feel uncomfortable.

拨禾轮包括普通拨禾轮、偏心拨禾轮、滚齿强制立式拨禾轮,普通拨禾轮结构简单,重量相对较轻,制造成本低,应用于割晒机及中小型联合收割机上,但其对倒伏作物的适应能力较差,对作物的打击严重。它由拨板、辐条、拉筋、轴和轴承、支臂及支杆等组成。工作时,拨禾轮相对机器作回转运动,拨板则起到拨禾、扶禾切割和拨送禾秆的作用。The reel includes ordinary reel, eccentric reel, and hobbing forced vertical reel. The ordinary reel has a simple structure, relatively light weight and low manufacturing cost, and is used in windrowers and small and medium-sized combine harvesters. , but its adaptability to lodging crops is poor, and it is a serious blow to crops. It consists of dials, spokes, ties, shafts and bearings, arms and rods. When working, the reel revolves relative to the machine, and the reel plays the role of reeling, cutting and feeding stalks.

往复式切割器的切割器传动机构可以采用空间型曲柄连杆机构的转向式型曲柄连杆机构。The cutter transmission mechanism of the reciprocating cutter can adopt the steering type crank connecting rod mechanism of the space type crank connecting rod mechanism.

实用新型内容Utility model content

本实用新型的目的就是为了克服上述现有技术存在的缺陷而提供一种手推式小型剪草机。The purpose of this utility model is to provide a hand-pushed small lawnmower in order to overcome the above-mentioned defects of the prior art.

本实用新型的目的可以通过以下技术方案来实现:The purpose of the present utility model can be achieved through the following technical solutions:

一种手推式小型剪草机,包括:A walk-behind small lawnmower comprising:

车架,该车架上设有车轮和推拉机构,A frame, which is provided with wheels and a push-pull mechanism,

切割装置,由相匹配的固定刀片和活动刀片组成,固定刀片固定于车架前端,The cutting device consists of a matching fixed blade and a movable blade. The fixed blade is fixed at the front end of the frame.

草屑收集装置,由与切割装置匹配设置的拨禾轮以及设置于拨禾轮后方的收纳箱组成,拨禾轮通过转动轴与车架可转动连接,并随车轮转动,The grass clipping collection device is composed of a reel matched with the cutting device and a storage box arranged behind the reel. The reel is rotatably connected to the frame through a rotating shaft and rotates with the wheel.

换向装置,用于将车轮的转动运动转换为活动刀片的横向往复运动。The reversing device is used to convert the rotational motion of the wheel into the lateral reciprocating motion of the movable blade.

优选地,所述的换向装置包括依次传动连接的圆盘、连杆、摆件和拐臂,所述的圆盘与拨禾轮共轴,所述的摆件铰接于车架上,可在连杆的带动下在水平面内摆动,并通过拐臂带动活动刀片横向往复运动。Preferably, the reversing device includes a disc, a connecting rod, a rocking piece and a turning arm that are sequentially connected by transmission, the disc and the reel are coaxial, and the rocking piece is hinged on the frame and can be connected Driven by the rod, it swings in the horizontal plane, and drives the movable blade to reciprocate laterally through the crank arm.

优选地,所述的摆件呈回旋镖状,顶点处铰接于车架上,两端分别与连杆和拐臂连接。Preferably, the rocker is in the shape of a boomerang, hinged on the frame at the apex, and connected with the connecting rod and the crank arm at both ends.

优选地,所述的车架上设有高度可调的固定架,固定刀片通过固定架设置于车架上,活动刀片通过设置于固定刀片上的横向导轨相对于固定刀片作横向往复运动,摆件与固定架铰接。Preferably, the frame is provided with a height-adjustable fixing frame, the fixed blade is arranged on the frame through the fixing frame, and the movable blade performs lateral reciprocating movement relative to the fixed blade through the transverse guide rail arranged on the fixed blade, and the ornament Hinged with fixed frame.

优选地,所述的圆盘和拨禾轮的转动轴通过链轮式增速机构与车轮传动连接,所述的链轮式增速机构由与车轮共轴的牙盘、设置于转动轴上的飞轮以及用于连接牙盘与飞轮的链条组成,且飞轮的直径小于牙盘的直径。通过链轮式增速机构和曲柄连杆式换向装置,一方面实现了增加转速,另一方面改变了传动方向,使竖直方向的转动转换为水平方向活动刀片的横向往复运动。Preferably, the rotating shafts of the disc and the reel are connected to the wheel through a sprocket-type speed-increasing mechanism, and the sprocket-type speed-increasing mechanism consists of a crankshaft coaxial with the wheel, arranged on the rotating shaft The flywheel and the chain used to connect the chainring and the flywheel are composed, and the diameter of the flywheel is smaller than the diameter of the chainring. Through the sprocket-type speed-increasing mechanism and the crank-link type reversing device, the rotation speed is increased on the one hand, and the transmission direction is changed on the other hand, so that the rotation in the vertical direction is converted into the lateral reciprocating motion of the movable blade in the horizontal direction.

优选地,所述的链轮式增速机构和换向装置设置于车架的同一侧。Preferably, the sprocket-type speed-increasing mechanism and the reversing device are arranged on the same side of the frame.

优选地,链条外部装有链盒。保护链条在转动时避免碎草屑的飞入,保证了链条运行的平稳,延长使用寿命。Preferably, the chain is fitted with a chain case on the outside. The protection chain avoids the flying of grass clippings during rotation, which ensures the smooth running of the chain and prolongs the service life.

优选地,所述的车轮设置于车架的后部,车架的前端还设有万向轮。Preferably, the wheels are arranged at the rear of the frame, and the front end of the frame is also provided with a universal wheel.

优选地,所述的收纳箱为可拆卸收纳箱。在修剪草屑集满后方便快速倒取。Preferably, the storage box is a detachable storage box. Easy and quick dumping after the clippings are full.

优选地,所述的收纳箱还设有把手,方便安装和拆卸。Preferably, the storage box is further provided with a handle, which is convenient for installation and disassembly.

本实用新型采用人力驱动,通过手推推拉机构后,带动车轮和牙盘转动。由于剪草机采用链轮增速的传动方式,通过牙盘与飞轮的链轮传动,经将车轮的转动增速传递给圆盘,在连杆的带动下,通过摆动将运动传给摆件,摆件水平摆动;切割装置的组成包括固定刀片通过固定架固定在车架上,固定刀片和活动刀片之间通过横向导轨组合在一起;运动时,由拐键带动活动刀片相对于固定刀片作横向往复运动,完成切割装置的剪切动作。由于圆盘和拨禾轮同轴设置,剪草过程中,拨禾轮同时进行草屑的收集。The utility model is driven by manpower, and the wheel and the crankset are driven to rotate through the push-pull mechanism by hand. Because the lawnmower adopts the transmission mode of sprocket speed increase, through the sprocket transmission of the crankset and the flywheel, the speed of rotation of the wheel is transmitted to the disc, and driven by the connecting rod, the movement is transmitted to the pendant by swinging. The pendulum swings horizontally; the composition of the cutting device includes that the fixed blade is fixed on the frame through the fixed frame, and the fixed blade and the movable blade are combined together by the transverse guide rail; when moving, the movable blade is driven by the turning key to reciprocate laterally relative to the fixed blade Movement to complete the cutting action of the cutting device. Due to the coaxial arrangement of the disc and the reel, the reel collects grass clippings at the same time during the mowing process.

并通过连接的拐键将摆动转换为活动刀片的水平往复运动。And the swing is converted into the horizontal reciprocating motion of the movable blade through the connected turning key.

与现有技术相比,本实用新型具有以下有益效果:Compared with the prior art, the utility model has the following beneficial effects:

1、手推式剪草,噪音小、质量轻、操作比较方便,适合家庭庭院草坪修剪或者像图书馆学习或者办公场合等对有噪音要求地方的草坪修剪使用。1. Hand push lawn mowing, low noise, light weight and convenient operation, suitable for lawn mowing in home gardens or lawn mowing in places with noise requirements such as library study or office occasions.

2、该剪草机结构设计简洁,产品设计材料多用工业铝合金型材,来源广泛、结构安装便捷,能很好的降低生产成本。2. The lawnmower has a simple structure design, and the product design materials are mostly industrial aluminum alloy profiles, which have a wide range of sources and convenient structure and installation, which can greatly reduce production costs.

3、剪草机创新性的采用采用齿轮链条变速加曲柄连杆的传动方式,实现了齿轮变速,保证了刀片剪切运动的稳定性。3. The lawnmower innovatively adopts the transmission mode of gear chain speed change and crank connecting rod, which realizes the gear speed change and ensures the stability of the cutting motion of the blade.

4、手推式剪草机采用人力驱动,相比传统的汽油机、采油机,不但减少了工作噪音,而且减少了环境的污染物的排放,既低碳又环保,非常适合推广使用。4. The hand-push lawnmower is driven by manpower. Compared with the traditional gasoline engine and oil extraction machine, it not only reduces the working noise, but also reduces the emission of environmental pollutants. It is low-carbon and environmentally friendly, and is very suitable for promotion and use.

5、采用多重调节模式,既可以通过调节固定架的高度来修剪不同高度的草坪,来适应不同高度草坪修剪的需求,又可以通过调节推拉机构的高低来适应不同身高的人操作。5. Using multiple adjustment modes, it can not only trim lawns of different heights by adjusting the height of the fixed frame to meet the needs of lawn mowing of different heights, but also adapt to the operation of people of different heights by adjusting the height of the push-pull mechanism.

附图说明Description of drawings

图1为本实用新型的俯视示意图;Fig. 1 is the top schematic view of the utility model;

图2为本实用新型的仰视示意图。Fig. 2 is the bottom view schematic diagram of the utility model.

图中,1为活动刀片,2为固定刀片,3为万向轮,4为摆件,5为左固定架, 6为连杆,7为调节轴,8为飞轮,9为圆盘,10为链条,11为车轮,12为牙盘, 13为拨禾轮,14为支撑杆,15为推杆,16为把手,17为T型螺栓,18为角铁, 19为中轴支撑座,20为车架,21为排刷,22为收纳箱,23为刷盘,24为外球面轴承座,25为固定销,26为中间轴,27为前轴螺杆,28为摆件固定件,29为右固定架,30为拐臂。In the figure, 1 is a movable blade, 2 is a fixed blade, 3 is a universal wheel, 4 is a swing piece, 5 is a left fixing frame, 6 is a connecting rod, 7 is an adjusting shaft, 8 is a flywheel, 9 is a disc, and 10 is a Chain, 11 is the wheel, 12 is the chainring, 13 is the reel, 14 is the support rod, 15 is the push rod, 16 is the handle, 17 is the T-bolt, 18 is the angle iron, 19 is the center axle support seat, 20 is the frame, 21 is the brush row, 22 is the storage box, 23 is the brush plate, 24 is the outer spherical bearing seat, 25 is the fixing pin, 26 is the intermediate shaft, 27 is the front axle screw, 28 is the pendulum fixing piece, 29 is the Right fixing frame, 30 is the crutch arm.

具体实施方式Detailed ways

下面结合附图和具体实施例对本实用新型进行详细说明。The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

实施例1Example 1

一种手推式小型剪草机,如图1~2所示,包括车架20、切割装置、草屑收集装置和换向装置,其中:车架20上设有车轮11和推拉机构;切割装置由相匹配的固定刀片2和活动刀片1组成,固定刀片2固定于车架20前端;草屑收集装置由与切割装置匹配设置的拨禾轮13以及设置于拨禾轮13后方的收纳箱22组成,拨禾轮13通过转动轴与车架20可转动连接,并随车轮11转动;换向装置用于将车轮11的转动运动转换为活动刀片1的横向往复运动。A hand-push small lawnmower, as shown in Figures 1 to 2, includes a frame 20, a cutting device, a grass clipping collection device and a reversing device, wherein: the frame 20 is provided with wheels 11 and a push-pull mechanism; cutting The device is composed of a matching fixed blade 2 and a movable blade 1. The fixed blade 2 is fixed to the front end of the frame 20; 22, the reel 13 is rotatably connected with the frame 20 through the rotating shaft, and rotates with the wheel 11;

本实施例中,拨禾轮13主要由排刷21、刷盘23、中间轴26、前轴螺杆27和拨片组成,并通过外球轴承座24和固定销25来固定拨禾轮13。换向装置包括依次传动连接的圆盘9、连杆6、摆件4和拐臂30,圆盘9通过调节轴7与车架可转动连接,并且与拨禾轮13共轴(即中间轴26和调节轴7在一条转动轴上),摆件 4铰接于车架20上,可在连杆6的带动下在水平面内摆动,并通过拐臂30带动活动刀片1横向往复运动。更具体地,摆件4呈回旋镖状,顶点处铰接于车架20上,两端分别与连杆6和拐臂30连接,如图1~2所示。本实施例中圆盘9和拨禾轮13 的转动轴通过链轮式增速机构与车轮11传动连接,链轮式增速机构由与车轮共轴的牙盘12、设置于转动轴上的飞轮8以及用于连接牙盘12与飞轮8(优选采用T18 飞轮)的链条10组成,且飞轮8的直径小于牙盘12的直径。一方面实现了增加转速,另一方面改变了传动方向,使竖直方向的转动转换为水平方向活动刀片的横向往复运动。本实施例中,链轮式增速机构和换向装置设置于车架20的同一侧。In this embodiment, the reel 13 is mainly composed of a row brush 21 , a brush plate 23 , an intermediate shaft 26 , a front axle screw 27 and a paddle, and the reel 13 is fixed by an outer ball bearing seat 24 and a fixing pin 25 . The reversing device includes a disc 9, a connecting rod 6, a swing piece 4 and a crank arm 30 which are sequentially connected in a transmission. The rocking member 4 is hinged on the frame 20 and can swing in the horizontal plane under the driving of the connecting rod 6, and drives the movable blade 1 to reciprocate laterally through the crank arm 30. More specifically, the rocker 4 is in the shape of a boomerang, hinged on the frame 20 at the apex, and connected to the connecting rod 6 and the crank arm 30 at both ends, as shown in FIGS. 1-2 . In this embodiment, the rotating shafts of the disc 9 and the reel 13 are connected to the wheel 11 through a sprocket-type speed-increasing mechanism. The flywheel 8 and the chain 10 for connecting the crankset 12 and the flywheel 8 (preferably a T18 flywheel) are composed, and the diameter of the flywheel 8 is smaller than the diameter of the crankset 12 . On the one hand, the rotation speed is increased, and on the other hand, the transmission direction is changed, so that the rotation in the vertical direction is converted into the lateral reciprocating motion of the movable blade in the horizontal direction. In this embodiment, the sprocket-type speed-increasing mechanism and the reversing device are arranged on the same side of the frame 20 .

本实施例中,车架20上设有高度可调的固定架,固定刀片2通过固定架设置于车架20上(固定架由左固定架5和右固定架29组成,与固定刀片2的两端连接),活动刀片1通过设置于固定刀片2上的横向导轨相对于固定刀片2作横向往复运动,摆件4通过摆件固定件28与固定架(本实施例中为5固定架)铰接。In this embodiment, the frame 20 is provided with a height-adjustable fixing frame, and the fixed blade 2 is arranged on the frame 20 through the fixing frame (the fixing frame is composed of the left fixing frame 5 and the right fixing frame 29, and the fixed blade 2 Both ends are connected), the movable blade 1 reciprocates laterally relative to the stationary blade 2 through the transverse guide rails provided on the stationary blade 2, and the pendulum 4 is hinged to the fixture (5 fixtures in this embodiment) through the pendulum fixture 28.

本实施例中,通过用T型螺栓17和角铁18固定铝合金型材组成了车架20的结构,推拉机构由支撑杆14和推杆15组成。收纳箱22为可拆卸收纳箱,在修剪草屑集满后方便快速倒取。收纳箱还设有把手16,方便安装和拆卸。链条10外部装有链盒。保护链条10在转动时避免碎草屑的飞入,保证了链条10运行的平稳,延长使用寿命。车轮11采用直径较大的实心橡胶车轮,通过中轴支撑座19设置于车架20的后部,一来降低噪音,二来易实现滚动,进而能够有效带动活动刀片1 和拨禾轮13动作。车架20的前端还设有万向轮3。In this embodiment, the structure of the frame 20 is formed by fixing the aluminum alloy profiles with the T-bolts 17 and the angle irons 18 , and the push-pull mechanism is composed of a support rod 14 and a push rod 15 . The storage box 22 is a detachable storage box, which is convenient and quick to take out after the grass clippings are full. The storage box is also provided with a handle 16, which is convenient for installation and disassembly. The chain 10 is fitted with a chain case on the outside. The protection chain 10 avoids the flying of grass clippings during rotation, which ensures the smooth running of the chain 10 and prolongs the service life. The wheel 11 is a solid rubber wheel with a larger diameter, which is arranged at the rear of the frame 20 through the central axle support seat 19, which reduces noise and facilitates rolling, which can effectively drive the movable blade 1 and the reel 13 to move. . The front end of the frame 20 is also provided with a universal wheel 3 .

上述对实施例的描述是为便于该技术领域的普通技术人员能理解和使用实用新型。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改,并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此,本实用新型不限于上述实施例,本领域技术人员根据本实用新型的揭示,不脱离本实用新型范畴所做出的改进和修改都应该在本实用新型的保护范围之内。The above description of the embodiments is for the convenience of those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications to these embodiments can be readily made, and the generic principles described herein can be applied to other embodiments without inventive step. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (7)

1. A small-size lawnmower of hand propelled, characterized in that includes:
A frame (20), wherein the frame (20) is provided with wheels (11) and a push-pull mechanism,
The cutting device consists of a fixed blade (2) and a movable blade (1) which are matched, the fixed blade (2) is fixed at the front end of a frame (20),
The grass chip collecting device consists of a reel (13) matched with the cutting device and a containing box (22) arranged behind the reel (13), the reel (13) is rotatably connected with the frame (20) through a rotating shaft and rotates along with the wheels (11),
And the reversing device is used for converting the rotating motion of the wheel (11) into the transverse reciprocating motion of the movable blade (1).
2. A hand-push type small lawnmower according to claim 1, wherein the reversing device comprises a disc (9), a connecting rod (6), a swing member (4) and a crank arm (30) which are sequentially connected in a transmission manner, the disc (9) is coaxial with the reel (13), the swing member (4) is hinged on the frame (20) and can swing in a horizontal plane under the driving of the connecting rod (6), and the crank arm (30) drives the movable blade (1) to transversely reciprocate.
3. A hand propelled lawnmower according to claim 2, wherein the swing member (4) is in the form of a boomerang, hinged at its apex to the frame (20), and connected at each end to the link (6) and the crank (30).
4. A hand-push small lawnmower according to claim 2 or 3, wherein the frame (20) has a height-adjustable mount, the fixed blade (2) is mounted on the frame (20) via the mount, the movable blade (1) is laterally reciprocated relative to the fixed blade (2) via a lateral guide provided on the fixed blade (2), and the swing part (4) is hinged to the mount.
5. A hand-push small lawnmower according to claim 2, wherein the rotating shafts of the circular disc (9) and the reel (13) are drivingly connected to the wheel (11) through a sprocket speed-increasing mechanism, the sprocket speed-increasing mechanism comprises a chain wheel (12) coaxial with the wheel, a flywheel (8) disposed on the rotating shaft, and a chain (10) for connecting the chain wheel (12) and the flywheel (8), and the diameter of the flywheel (8) is smaller than that of the chain wheel (12).
6. A hand propelled lawnmower according to claim 5, wherein the sprocket speed increasing mechanism and the reversing device are disposed on the same side of the frame (20).
7. A hand-push small lawnmower according to claim 1, wherein the wheels (11) are disposed at the rear of the frame (20), and the front end of the frame (20) is further provided with universal wheels (3).
CN201822254560.6U 2018-12-29 2018-12-29 Small hand-push type lawnmower Expired - Fee Related CN211020024U (en)

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Application Number Priority Date Filing Date Title
CN201822254560.6U CN211020024U (en) 2018-12-29 2018-12-29 Small hand-push type lawnmower

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CN211020024U true CN211020024U (en) 2020-07-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080893A (en) * 2021-09-30 2022-02-25 安徽三把刀园林机械有限公司 Lawn is pruned with hobbing cutter of cutting grass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080893A (en) * 2021-09-30 2022-02-25 安徽三把刀园林机械有限公司 Lawn is pruned with hobbing cutter of cutting grass

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