CN202587909U

CN202587909U - Detachable and replaceable function head mechanism for gardening tool

Info

Publication number: CN202587909U
Application number: CN 201220151421
Authority: CN
Inventors: 赵国泗; 李传扬
Original assignee: NINGBO HAOSHITE ELECTRICAL APPLIANCES Co Ltd
Current assignee: NINGBO HAOSHITE ELECTRICAL APPLIANCES Co Ltd
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2012-12-12
Anticipated expiration: 2022-04-11

Abstract

The utility model discloses a detachable and replaceable function head mechanism for a gardening tool. The gardening tool comprises a function head and a power head arranged in sequence; and an output shaft of a motor in the power head is in threaded fit with a shaft sleeve in the function head. The detachable and replaceable function head mechanism is characterized in that a connecting groove is formed on the rear end part of the joint of the function head and the power head; longitudinally extending protrusions are arranged on the front end part of the joint of the function head and the power head; the protrusions can be locked with the connecting groove; the rear end face of the function head is provided with a limiting hole; and the front end of the power head is provided with a limiting pin capable of being inserted into and separated from the limiting hole. The function head and the power head are respectively provided with the limiting pin and the limiting hole, so that the function head and the power head can be convenient to lock during assembly; and when the function head is required to be replaced, the function head and the power head can be convenient to separate, so that a multipurpose effect is achieved and the operating reliability is improved.

Description

A kind of detachable replacing functional head mechanism of garden instrument

Technical field

The utility model relates to a kind of garden instrument, especially a kind of detachable replacing functional head mechanism of garden instrument functional head.

Background technology

Garden instrument commonly used like shrub and hedge trimmer, is mainly used in branch or the blade of shearing trees, shrub, to reach the purpose of finishing trees or shrub shape, is the higher graden machine of a kind of frequency of utilization.And for example chain saw leans on L shaped blade transverse movement staggered on the saw chain to carry out shear action, is mainly used in lumbering and producing material, also is a kind of garden instrument commonly used.

Stock shrub and hedge trimmer or chain saw have been developed; This type shrub and hedge trimmer or chain saw generally include casing, motor, functional head, stock and handle, and functional head is located at the casing front end, comprise the blade that is used to cut; Motor is positioned at casing; Be used to drive functional head, connect through connector between casing and the stock, the end of stock has handle.

Yet existing garden instrument is after its functional head, casing, connector, stock and handle install; Usually can not remake relative to rotate, and only have a kind of function usually, can only be shrub and hedge trimmer or chain saw; Be to be not easy to dismounting between functional head and the casing; This not only makes inconvenient operation, and function singleness, and cost is higher.

The utility model content

The utility model technical problem to be solved provides the detachable replacing functional head mechanism of the garden instrument of a kind of simple in structure, a tractor serves several purposes, reliable.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of detachable replacing functional head mechanism of garden instrument; Said garden instrument comprises functional head and the unit head of installing successively; The output shaft of the motor in the said unit head cooperates with the interior sleeve thread of said functional head; It is characterized in that; Offer the connection groove on said functional head and the rearward end that said unit head is connected, the leading section that said unit head is connected with said functional head has the protuberance of longitudinal extension, and said protuberance can be connected groove locking with said; Offer spacing hole on the rear end face of said functional head, the front end of said unit head is provided with the spacer pin that can insert and break away from said spacing hole.

Said unit head front end also is provided with sliding part; Said spacer pin is arranged on the front end of said sliding part; The rear end of said sliding part is provided with bearing pin, and said bearing pin is provided with back-moving spring, the front end of said back-moving spring and said sliding part butt; The rear end of said back-moving spring and said unit head butt, the upper end of said sliding part is provided with the cage knob that is used to drive said sliding part.Through stirring cage knob, can be so that the sliding part movement therewith, thus make spacer pin leave spacing hole, so that change functional head.

The periphery of said protuberance has a plurality of boss that radially extend, and the periphery of said connection groove has the breach of a plurality of boss couplings that radially extend and said, and the spinfunction head makes and can make functional head and unit head lock after the boss alignment notch.

Said unit head comprises two casings and two linking arms that fit together; The two ends of said linking arm are connected on the front end and said casing of said stock; The front end of said linking arm has columniform swivel head, and the front end of one of them said casing offers chute, and said cage knob is arranged in the said chute; The rear end of said back-moving spring and said swivel head butt can be changed functional head simply in the peripheral operation of unit head.

Compared with prior art, the advantage of the utility model is: through spacer pin and spacing hole being set respectively at functional head and unit head, and can be when functional head and unit head assembling conveniently with both lockings; And when needs are changed functional head, can easily both be separated again, realized effect of one machine multiple purposes, also improved the reliability of operation.

Description of drawings

Fig. 1 is the sketch map of the garden instrument of the utility model;

Fig. 2 be the utility model functional head and functional head be connected sketch map;

Fig. 3 be the utility model another angle functional head and functional head be connected sketch map;

Fig. 4 is the functional head of the utility model and the partial exploded view of functional head coupling part.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1, a kind of garden instrument comprises the functional head of installing successively 1, and like shrub and hedge trimmer or chain saw head, unit head 2 is built-in with the direct current or the alternating current generator that are used to drive functional head 1, stock 3, assist handle 4, and the main handle 5 of stock 3 rear ends.

In the utility model, functional head 1 removably connects with unit head 2, can carry out the replacing of shrub and hedge trimmer or chain saw head, realizes a tractor serves several purposes thus.Referring to Fig. 2 to Fig. 4, the output shaft 23 of the motor in the unit head 2 be inserted in the axle sleeve 11 of functional head 1 and with axle sleeve 11 threaded engagement.Thus, the rotation of motor can drive the cutting tool of functional head 1 front end.

Offer on functional head 1 and the rearward end that unit head 2 is connected and connect groove 12, the leading section that unit head 2 is connected with functional head 1 has the protuberance 21 of longitudinal extension, and is connected groove 12 and matees, and can be inserted in the connection groove 12.The periphery of protuberance 21 has a plurality of boss 211 that radially extend; The periphery that connects groove 12 has a plurality of breach 121 that radially extend; The shape of breach 121 and quantity and boss 211 couplings, in the utility model, the quantity of boss 211 and breach 121 is four.When functional head 1 was connected with unit head 2, spinfunction 1 made boss 211 snap onto in the breach 121, thus functional head 1 and unit head 2 lockings.

Unit head 2 comprises and two casings 22 that fit together and two linking arms 6 that are connected with casing 22 in the casing 22 motor is set that unit head 2 is connected stock 3 front ends through linking arm 6.The front end of linking arm 6 has columniform swivel head 61, and the front end of one of them casing 22 offers chute 221, and being provided with in the chute 221 can be with the locking mechanism of functional head 1 with unit head 2 lockings; Comprise the cage knob 7 that is located in the chute 221; The bottom of cage knob 7 is fixed with sliding part 71, and the front end of sliding part 71 is provided with spacer pin 72, can be inserted on functional head 1 rear end face in the corresponding spacing hole 13; The rear end of sliding part 71 is provided with bearing pin 73; Bearing pin 73 is provided with back-moving spring 74, the front end of back-moving spring 74 and sliding part 71 butts, rear end and swivel head 61 butts.

During installation, the axle sleeve 11 of functional head 1 is aimed at the output shaft 23 and the rotation of unit head 2, as be rotated in a clockwise direction; This moment, the rear end face pushing spacer pin 72 of functional head 1 moved to the back-end, and back-moving spring 74 is compressed, and makes boss 211 snap onto in the breach 121 after rotating to an angle; Functional head 1 is locked with unit head 2 thus, and at this moment, spacing hole 13 is corresponding with spacer pin 72 positions; The motion of back-moving spring 74 pushing sliding parts 71 forward end; Make spacer pin 72 be inserted in the spacing hole 13, functional head 1 and unit head 2 lockings can not relatively rotate thus.

When needing to change functional head 1; Stir cage knob 7 to the back-end, drive spacer pin 72 and leave spacing hole 13, functional head 1 opposite direction to installation the time is rotated; As rotating along counter clockwise direction; Make functional head 1 come off, the functional head that will change again is installed on the unit head 2, and method such as the preamble that install this moment are said.

The above is merely the preferred implementation of the utility model; Should be pointed out that for those of ordinary skill in the art, do not breaking away under the principle prerequisite of the utility model; Can also make various deformation and improvement, this also should be regarded as the protection domain of the utility model.

Claims

1. the detachable replacing functional head mechanism of a garden instrument; Said garden instrument comprises functional head (1) and the unit head of installing successively (2); The output shaft (23) of the motor in the said unit head (2) and interior axle sleeve (11) threaded engagement of said functional head (1); It is characterized in that; Offer on said functional head (1) and the rearward end that said unit head (2) is connected and connect groove (12), the leading section that said unit head (2) is connected with said functional head (1) has the protuberance (21) of longitudinal extension, and said protuberance (21) can be locked with the said groove (12) that is connected; Offer spacing hole (13) on the rear end face of said functional head (1), the front end of said unit head (2) is provided with the spacer pin (72) that can insert and break away from said spacing hole (13).

2. detachable replacing functional head as claimed in claim 1 mechanism; It is characterized in that; Said unit head (2) front end also is provided with sliding part (71), and said spacer pin (72) is arranged on the front end of said sliding part (71), and the rear end of said sliding part (71) is provided with bearing pin (73); Said bearing pin (73) is provided with back-moving spring (74); The front end of said back-moving spring (74) and said sliding part (71) butt, the rear end of said back-moving spring (74) and said unit head (2) butt, the upper end of said sliding part (71) is provided with the cage knob (7) that is used to drive said sliding part (71).

3. according to claim 1 or claim 2 detachable replacing functional head mechanism; It is characterized in that; The periphery of said protuberance (21) has a plurality of boss (211) that radially extend, and the periphery of said connection groove (12) has a plurality of breach (121) that mate with said boss (211) that radially extend.

4. detachable replacing functional head as claimed in claim 2 mechanism; It is characterized in that; Said unit head (2) comprises two casings (22) and two linking arms (6) that fit together; The two ends of said linking arm (6) are connected on the front end and said casing (22) of said stock (3), and the front end of said linking arm (6) has columniform swivel head (61), and the front end of one of them said casing (22) offers chute (221); Said cage knob (7) is arranged in the said chute (221), the rear end of said back-moving spring (74) and said swivel head (61) butt.