CN2221288Y

CN2221288Y - Weeder

Info

Publication number: CN2221288Y
Application number: CN 95213660
Authority: CN
Inventors: 李勇; 陈伟明; 金在中
Original assignee: MAOJI ELECTRIC TOOLS CO Ltd NINGBO
Current assignee: MAOJI ELECTRIC TOOLS CO Ltd NINGBO
Priority date: 1995-06-05
Filing date: 1995-06-05
Publication date: 1996-03-06
Anticipated expiration: 2005-06-05

Abstract

The utility model relates to a hand-held weeding machine which is suitable for places, such as gardens in families, farms, lawns, etc., and is used for weeding weeds and sundries. The utility model is composed of a motor arranged in a machine casing, a switch, an operating mechanism and a protecting cover with a blade, wherein, the operating mechanism is composed of a rotary wheel, a rotary wheel sheath, a nylon rope, etc.; a stator and a rotor of the motor are positioned by a front and a rear end cover, connected with each other into a whole and arranged in the machine casing. The proper alignment of rabbets of the front and the rear end covers and a bearing chamber ensures the evenness degree of airgaps of the stator and the rotor of the motor, the abuse of the low possibility of the accurate positioning of the motor is avoided, so the vibration of the motor is small, and noise is low; big vibration of the weeding machine caused by inaccurate positioning of the motor owing to the big machine casing and easy deformation is also avoided, and the service life of the weeding machine is extended.

Description

Weeder

The utility model relates to a kind of electric tool, and place such as extensively suitable garden, farm, lawn are used to weed a garden and the weeder of odds and ends, the portable weeder of particularly a kind of suitable family use.

Existing cart type weeder, its volume is big, Heavy Weight, and vibration is big, noise is high, also is difficult for family and uses.

The purpose of this utility model is to provide that a kind of volume is little, the low weeder easy to use of little, the noise of vibration.

The utility model is achieved in that weeder is made up of operating mechanism that is installed in motor in the casing, switch and is made of runner, rotaring wheeling sleeve, nylon rope etc. and the protective cover that has blade.And the stator and rotor of motor are located by forward and backward end cap, and connect into integral installation in casing.

Fig. 1 structural representation of the present utility model.

Fig. 2 operating mechanism schematic diagram.

Fig. 3 electric machine structure schematic diagram.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Casing (2) is cast into by the two halves plastic casing of left and right symmetry, and cavity and reinforcement are arranged on it, and switch (1) is installed in the groove of casing (2) upper end handgrip part.

Protective cover (14) is made of plastics bottom disc jaggy, and gap edge is fixed a blade (13).

Runner (9) is the peripheral disc that annular groove is arranged, the boss platform (lower surface is an annular groove) of the side's of having groove (lower surface is the boss platform) in the middle of the upper surface, and the boss edge of table has the Bafeng blade, and there are 16 uniform roundlet projections at lower surface annular groove edge.

Rotaring wheeling sleeve (11) twines nylon rope (15) for the middle line wheel that axis hole is arranged in the circumferential groove.Perimeter notches is with the anti-rope sling (10) of annular of an aperture, prevents that nylon rope (15) from easing out, and nylon rope (15) one ends pass from anti-rope sling (10) aperture, end face with seam fixedly the runner of circular arc cover (12).

Boss platform in the middle of runner (9) lower surface tightens sleeve spring (16), put into the assembly parts of rotaring wheeling sleeve (11) again, and nylon rope (15) one ends is clamped in the gap of the uniform roundlet projection of runner (9) lower surface, constitutes operating mechanism.

Axle fan blade cover (8) upper end is the square column type of band seam, and the lower end is middle the cylindrical of blind hole that has.Axle fan blade cover (8) embeds in the middle square groove of runner (9) end of square column type fixing.

With stator (5) iron core location, rotor (6) supports by the bearing chamber of bearing (17) by forward and backward end cap (3), (7), and connects whole motor (4) with screw by seam for forward and backward end cap (3), (7).

Protective cover (14) is a tight fit in the lower end of casing (2) with seam, whole motor (4) is fixed in the cavity of casing (2), motor (4) utilizes the knurling of axle head to be a tight fit in the blind hole of the cylindrical end of fan blade cover (8), the runner (9) of band rotaring wheeling sleeve (11) assembly parts is fixed on the fan blade cover (8), and weeder is assembled into.

During use, connect with the mains, motor (4) rotates, and drives runner (9) and rotates, and utilizes the high speed rotating of nylon rope on it (15), thereby assorted grass, branches and leaves are cut away the purpose that reaches the assorted grass of removing.

Remain certain radius of turn during nylon rope (15) rotation, the portion of operating process for safety carries out in protective cover (14), is cut away by blade (13) during long nylon rope (15) rotation.

The utility model is compared with prior art: because the stator and rotor of motor are not to be directly installed on casing In, but connect into whole motor by forward and backward end cap location with stator and rotor, with integrally-built Motor is installed in the cavity of casing, so just can avoid making motor because of big yielding the bringing of casing volume Locate coarse drawback. The aspect is because adopting integrally-built motor in addition, and motor stator and rotor air gap is equal Evenness can be guaranteed by forward and backward end cap, because the raising of motor positioning accuracy makes the vibration of motor rotation Little, noise is low, thereby also reduced vibration and the noise of weeder. Prolonged service life, improved Economic benefit is the electric tool that can carry, and is therefore easy to use, flexible, especially suitable family Use, reduce labor intensity.

Claims

1. weeder, by being installed in switch (1) in the casing (2), motor (4) and forming by runner (9), rotaring wheeling sleeve (11), the operating mechanism of nylon rope formations such as (15) and the protective cover (14) of band blade (13), the stator (5), the rotor (6) that it is characterized in that motor (4) are located, and are connected into integral installation in casing (2) by forward and backward end cap (3), (7).

2. weeder according to claim 1, it is characterized in that forward and backward end cap (3), (7) are located with stator (5) iron core by seam, rotor (6) is by the bearing chamber supporting of bearing (17) by forward and backward end cap (3), (7), screw passes forward and backward end cap (3), (7) and stator (5) iron core and connects into whole motor (4), and whole motor (4) is fixed in the cavity of casing (2).

3. weeder according to claim 1, it is characterized in that rotaring wheeling sleeve (11) is the middle line wheel that axis hole is arranged, twine nylon rope (15) in the circumferential groove, perimeter notches is with the anti-rope sling (10) of annular of an aperture, nylon rope (15) one ends pass from anti-rope sling (10) aperture, end face is with the fixing runner lid (12) of circular arc of seam, boss platform in the middle of runner (9) lower surface tightens sleeve spring (16), put into the assembly parts of rotaring wheeling sleeve (11) again, and nylon rope (15) one ends are clamped in the gap of the uniform roundlet projection of runner (9) lower surface, constitute operating mechanism.