CN105165427B - A kind of hand-held manpower simple trimming device - Google Patents

Abstract

The invention provides a hand-held simple manpower trimming device, the driving handle is fixed on one end of the slider, the other end of the slider is connected to the return spring, the other end of the return spring is fixed on one end of the processing chute on the frame, the head end The shaft is installed at one end of the frame near the chute. This device is a manpower-driven trimming device, the operator only needs to provide a driving force, the driving handle is reset by the return spring, and the mainspring can store capacity to provide power for the system before the next working cycle starts. The mechanism is simple and reliable, which solves the problem When pruning crops, the efficiency is low, the labor intensity is high, and the speed and power supply are insufficient.

Description

A hand-held human simple pruning device

technical field

The invention relates to a device for garden management and pruning, especially suitable for daily hand-held simple pruning devices.

Background technique

Pruning shears and splitting shears are gardening tools used for pruning and grafting flowers and tree branches, so that flowers and trees grow according to the grower's wishes. It is a one-handed grip, which requires a lot of force to trim, and it is quite laborious to use. In addition, when the pruning shears are not used at ordinary times, the blades of the scissors are always open, which will accidentally injure people around, causing certain potential safety hazards.

All shrubs or small trees are densely planted at a close distance between the plants and rows, planted in single or double rows, and the regular planting form that is closely combined is called a hedge wall. Usually, when trimming the fence, most of them use special pruning shears. The pruning shears are The utility model relates to a cutting tool for gardening and gardening, and is mostly used for trimming large-area garden fences and branches.

The pruning shears currently on the market are mainly flat-mouthed. This kind of pruning shears requires the pruner to open and close the scissors to trim the plants, and the flat-mouthed pruning shears are easy to slip when pruning, which will cost a certain amount of time. Cost and time, not conducive to urban greening work.

Contents of the invention

The invention provides a hand-held simple manpower pruning device, which solves the problems of low efficiency, high manual labor intensity, and insufficient supply of rotating speed and power when pruning crops.

A hand-held manpower simple pruning device, the driving handle is fixed on one end of the slider, the other end of the slider is connected to the return spring, the other end of the return spring is fixed on one end of the processing chute on the frame, and the head end shaft Installed on the end of the frame close to the chute, the lower end of the head shaft is equipped with a driving gear and a spring installation box, and a spring is installed inside the spring installation box, and the upper end of the head shaft is connected to the head gear. The drive wheel of the differential gear train is meshed with the head gear, the differential gear train is below the drive wheel of the differential gear train, and the end drive gear is engaged with the big sun gear, and the end drive gear is installed on the end shaft , a small pulley is installed on the terminal shaft, and the small pulley is connected to the large pulley through a synchronous belt.

The differential gear train mechanism includes a tie rod, a large sun gear, a small sun gear and a planetary gear. The output shaft rotates and meshes with the large sun gear simultaneously.

A T-shaped chute is processed at one end of the frame, and a hole for installing a return spring is processed at the upper end of the chute.

The slider is T-shaped, and a rack is processed at the small end of the T-shaped.

Remarkable effect of the present invention is:

1. This device is a manpower-driven trimming device. The operator only needs to provide a driving force. The driving handle is reset by the return spring. The mainspring can store capacity to provide power for the system before the next working cycle starts. The mechanism is simple and reliable.

2. The main parts used in this device are gears and springs, which are all standard parts, so it is easy to find replacement parts during maintenance.

3. The use of the differential gear train can increase the transmission ratio and torque so as to improve the speed and trimming force of the trimmer, making the mechanism more compact.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Among them: 1-trimming knife; 2-main shaft; 3-small pulley; 4-synchronous belt; 5-large pulley; 6-end drive gear; 7-differential drive wheel; 8-head end shaft; -head gear; 10-spring; 11-return spring; 12-slider; 13-drive handle; 14-drive gear; 15-spring installation box; 16-end shaft; 17-frame; 18-system Rod; 19-big sun gear; 20-planetary gear; 21-small sun gear; 22-intermediate shaft.

Fig. 2 is a front view of the device of the present invention.

Fig. 3 is an enlarged schematic diagram of the differential gear train mechanism at part A.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-3, the user repeatedly presses the drive handle 13 to move the slider 12 up and down in the chute processed on the frame 17. Due to the existence of the return spring 11, the slider 12 will be reset continuously to assist When the driving handle 13 is pressed, the moving slider 12 will drive the driving gear 14 to rotate through the processed rack on the upper side. Since the driving gear 14 and the head gear 9 are installed on the head shaft 8, the head gear 9 will rotate accordingly. At the same time, the mainspring 10 is stretched to store energy, which can provide energy for the rotation of the head shaft 8 during the interval between two presses by the user so as to ensure the speed of the trimmer 1. The head gear 9 and the differential train drive wheel 7 meshing, the differential gear train driving wheel 7 drives the differential gear train to act, the small sun gear 21 in the differential gear train drives the planetary gear 20 to rotate around the tie rod 18 and the intermediate shaft 22, and the large sun gear 19 Drive the end drive gear 6 to rotate. Since the end drive gear 6 and the large pulley 5 are coaxially installed, the large pulley 5 drives the small pulley 3 to rotate through the synchronous belt 4, and the small pulley 3 drives the trimmer through the main shaft 2 1 high-speed rotation, the device can start working.

Claims (1)

1. A kind of 1. hand-held manpower simple trimming device, it is characterised in that：Driving handle（13）It is consolidated in sliding block（12）One end, it is sliding Block（12）The other end connection back-moving spring（11）, the back-moving spring（11）The other end be consolidated in frame（17）On processing Chute one end, the head shaft（8）Installed in the frame（17）Close to one end of chute, the head shaft（8）Lower end installation driving Gear（14）With clockwork spring mounting box（15）, the clockwork spring mounting box（15）Inside installation clockwork spring（10）, the head shaft（8）It is upper End connection head end gear（9）, with head end gear（9）Engagement for differential gear train driving wheel（7）, the differential gear train driving wheel （7）Lower section be differential gear train, with big sun gear（19）Engagement for end drive gear（6）, the end drive gear（6） Installed in terminal shaft（16）, the terminal shaft（16）Upper installation big belt wheel（5）, small pulley（3）Pass through timing belt（4）Connect big band Wheel（5）；Differential gear train mechanism includes tie-rod（18）, big sun gear（19）, small sun gear（21）And planetary gear（20）, the tie-rod （18）, big sun gear（19）And small sun gear（21）It is consolidated in jackshaft（22）, planetary gear（20）Around tie-rod（18）One end Projecting shaft rotation simultaneously with big sun gear（19）Engagement；The frame（17）One end is machined with a T-shaped chute, and chute upper end adds Work one is used to install back-moving spring（11）Hole, the sliding block（12）To be T-shaped, a rack is machined with the small end of T words.