CN203340651U - Portable hedge trimmer - Google Patents

Abstract

The utility model discloses a portable hedge trimmer which comprises an engine and a trimming mechanism. The engine is fixedly arranged on a back frame and connected with the trimming mechanism through a flexible shaft, and the trimming mechanism comprises a machine frame, an eccentric wheel mechanism, a movable saw moving back and forth and a fixed saw fixed on the machine frame. The eccentric wheel mechanism is arranged on the machine frame to be connected with the flexible shaft, the movable saw and the fixed saw are arranged side by side, a sawtooth orientation of the movable saw and a sawtooth orientation of the fixed saw are identical, and the movable saw is connected with the eccentric wheel mechanism to enable rotary motion transmitted by the flexible shaft to be converted into reciprocating linear motion. The engine is carried on the back, labor intensity in operation is reduced, trimming efficiency is improved simultaneously, and the portable hedge trimmer can be widely applied to landscaping trimming.

Description

Portable Hedge Trimmer

technical field

The utility model belongs to landscaping machines, in particular to a portable hedge trimmer.

Background technique

At present, in landscaping work, most of the hedges are trimmed by manual pruning shears or portable power trimmers. The former is labor-intensive and inefficient, while the latter has certain efficiency through power trimming, but it needs Hand-held engine and trimming mechanism, strong operation strength.

Utility model content

The technical purpose of the utility model is to overcome the defects of high labor intensity or low efficiency existing in the existing hedge trimmer, and provide a portable hedge trimmer, which reduces the labor intensity of hedge trimming, and is easy to operate and high in efficiency.

The utility model adopts the following technical solutions to achieve the above technical purposes: a portable hedge trimmer, including an engine 2 and a trimming mechanism, the engine 2 is fixedly arranged on the back frame 3, and is connected with the trimming mechanism through a flexible shaft 6; The mechanism includes a frame 9, an eccentric wheel mechanism, a reciprocating moving saw 15 and a fixed saw 17 fixed on the frame 9. The eccentric wheel mechanism is arranged on the frame 9 and connected with the flexible shaft 6. The saw 15 and the fixed saw 17 are arranged side by side with the same saw teeth. The movable saw 15 is connected with the eccentric mechanism to convert the rotary motion transmitted by the flexible shaft 6 into a reciprocating linear motion.

The moving saw 15 is fixedly arranged on the slide plate 16, and the slide plate 16 slides back and forth in the slide seat 13 on the frame 9, and the slide plate 16 is connected with the eccentric wheel mechanism through the connecting rod 12 to form a slider crank mechanism.

The eccentric wheel shaft 18 of the eccentric wheel mechanism is fixedly connected with the eccentric wheel 10 and is arranged on the frame 9 through the bearing 8, the flexible shaft 6 is connected with the eccentric wheel shaft 18 to realize power transmission, and the pin shaft 11 on the eccentric wheel 10 is connected with the The connecting rod 12 is connected.

A handle 7 for holding is provided on the frame 9 .

Both ends of the flexible shaft 6 are respectively connected with the motor output shaft 1 and the eccentric shaft 18 through a coupling 19 .

The back frame 3 is provided with a strap 5 for carrying it on the back.

A soft pad 4 is provided at the part carried by the back frame 3 .

The engine of the utility model adopts a piggyback type, which reduces the labor intensity during operation and improves the pruning efficiency at the same time, and can be widely used in the pruning of landscaping.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic structural view of a portable hedge trimmer related to the present invention.

Figure 2 is a schematic structural view of the eccentric wheel mechanism.

Symbols in the figure: 1-engine output shaft, 2-engine, 3-back frame, 4-cushion, 5-strap, 6-flexible shaft, 7-handle, 8-bearing, 9-frame, 10-eccentric wheel , 11-pin shaft, 12-connecting rod, 13-sliding seat, 14-fixing screw, 15-moving saw, 16-slide, 17-fixed saw, 18-eccentric axle, 19-coupling.

Detailed ways

Example

Referring to Fig. 1 and Fig. 2, the portable hedge trimmer in the illustration includes an engine 2 and a trimming mechanism, the engine 2 is fixedly arranged on the back frame 3, and is connected with the trimming mechanism through a flexible shaft 6, and the back frame 3 is provided with a The braces 5, the position of the back frame 3 is provided with a cushion 4. The pruning mechanism includes a frame 9, an eccentric wheel mechanism, a moving saw 15 moving back and forth, and a fixed saw 17 fixed on the frame 9. The eccentric wheel mechanism is arranged on the frame 9 and connected with the flexible shaft 6. The moving saw 15 and the fixed saw 17 are arranged side by side and have the same saw teeth. The moving saw 15 is fixed on the slide plate 16. The slide plate 16 slides back and forth in the slide seat 13 on the frame 9. The slide plate 16 is connected with the eccentric wheel mechanism through the connecting rod 12 to form a crank slide. The block mechanism then converts the rotary motion transmitted by the flexible shaft 6 into a reciprocating linear motion. A handle 7 for holding is provided on the frame 9 .

Referring specifically to Fig. 2, the eccentric wheel shaft 18 of the eccentric wheel mechanism is fixedly connected with the eccentric wheel 10 and is arranged on the frame 9 through the bearing 8, and the two ends of the flexible shaft 6 are respectively connected to the engine output shaft 1 and the eccentric wheel shaft 18 through the coupling 19. The connection realizes power transmission, and the pin shaft 11 on the eccentric wheel 10 is connected with the connecting rod 12 .

When working, the operator puts the back frame on his back, starts the engine 2, and the power is transmitted through the engine output shaft 1 and the flexible shaft 6 through the eccentric wheel shaft 18, the eccentric wheel shaft 18 drives the eccentric wheel 10 to rotate, and the connecting rod 12 drives the slide plate 16 to operate. Reciprocating linear motion, thereby driving the saw teeth of the moving saw 15 and the fixed saw 17 to move back and forth alternately to realize the trimming of the hedge.

Claims (7)

1. portable hedge trimmer comprises engine (2) and prunes mechanism that it is characterized in that: it is upper that described engine (2) is fixedly installed on backrest (3), by flexible axle (6), with described pruning mechanism, is connected;

Described pruning mechanism comprises the moving saw (15) of frame (9), eccentric mechanism, back and forth movement and is fixed on and determines saw (17) on frame (9), described eccentric mechanism is arranged on frame (9) and above is connected with described flexible axle (6), described moving saw (15) with fixed saw (17), be set up in parallel and its sawtooth towards identical, moving saw (15) is connected with eccentric mechanism rotatablely moving of flexible axle (6) transmission is converted into to round rectilinear motion.

2. portable hedge trimmer according to claim 1, it is characterized in that: described moving saw (15) is fixedly installed on slide plate (16), in the slide (13) of described slide plate (16) on frame (9), slidably reciprocate, slide plate (16) connects to form a slider-crank mechanism by connecting rod (12) and described eccentric mechanism.

3. portable hedge trimmer according to claim 2, it is characterized in that: the camshaft of described eccentric mechanism (18) is connected and passes through bearing (8) with eccentric wheel (10) and is arranged on frame (9), described flexible axle (6) is connected and realizes transmission of power with camshaft (18), and the bearing pin (11) on eccentric wheel (10) is connected with described connecting rod (12).

4. portable hedge trimmer according to claim 3, is characterized in that: on frame (9), be provided with for hand-held handle (7).

5. according to the described portable hedge trimmer of any one in claim 1-4, it is characterized in that: the two ends of described flexible axle (6) are connected by shaft coupling (19) with camshaft (18) with motor output shaft (1) respectively.

6. according to the described portable hedge trimmer of any one in claim 1-4, it is characterized in that: described backrest (3) is provided with the braces (5) for bearing.

7. portable hedge trimmer according to claim 6, it is characterized in that: the position that described backrest (3) is born is provided with cushion (4).

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