CN212324679U

CN212324679U - Portable scarifier

Info

Publication number: CN212324679U
Application number: CN202021307247.5U
Authority: CN
Inventors: 田璐璐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-12
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a portable scarifier, it is reducible or eliminate, because of the potential safety hazard that the beating of organism brought during the hacking. A portable scarifier comprises a scarifier body and a handle which are connected, wherein the scarifier body is composed of a rotary cutter assembly, a transmission module and a power module, the central line of the handle is perpendicular to the axis of the rotary cutter assembly, a long rod-shaped plough aid for fixing the handle to the ground is pivoted on the handle, and the plough aid can keep an included angle between the plough aid and the central line of the handle to be fixed in a put-down state or a put-up state. The handle is characterized by also comprising a shock absorber which is clamped between the machine body and the handle and is fixedly connected with the machine body, wherein the shock absorber can generate deformation in the extension line direction of the central line of the handle and the direction vertical to the central line. The shock absorber is a U-shaped plate spring assembly with an upward opening.

Description

Portable scarifier

Technical Field

The utility model relates to a portable loosening tiller, including continuous organism and handle, the organism comprises rotary cutter subassembly, transmission module and power module, and the axis of rotary cutter subassembly is revolved to the central line perpendicular to of handle.

Background

Scarifiers, as the name suggests, are a practical tool for loosening soil. According to the size, the soil-loosening machine can be divided into a large-medium soil-loosening machine and a portable soil-loosening machine. The large and medium scarifiers are applied to the field of agricultural production as agricultural machinery; the portable scarifier is applied to small areas such as family courtyards and the like, such as flowers and plants planting, tree fertilization and the like, the ground needing to be scarified has soft land, more lawn or weed clumping and hardening land, and generally takes a motor or a small gasoline engine as power; the operators are many people with weak physical strength such as the old, women and the like.

As disclosed in patent document CN204598586U, the portable ripper has a simple structure, and generally, a ripper blade assembly horizontally rotated by a motor through a transmission module constitutes a ripper body; the handle is fixed on the machine body and is used for being operated in pushing or dragging directions. The working process of the scarifier comprises two stages of soil breaking and soil loosening, and impact force generated by the scarifier in the soil breaking and soil loosening processes greatly affects manual operation. In the soil breaking stage, a large amount of continuous impact force is generated between the rotating scarification knife and the ground, so that the machine body generates violent jumping and impact force, and the violent jumping can bring potential safety hazards to weak people; in the soil loosening stage, a user often needs to tightly hold a handle of the scarifier due to severe shaking in use, and therefore fatigue of the user is increased.

Due to its portability requirement, portable scarifiers have been designed to be lightweight, compact, and powerful at a glance, with little regard to operator safety and comfort.

These are deficiencies of the prior art.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a portable scarifier, its reducible or elimination, the potential safety hazard brought because of beating of organism when breaking ground.

The utility model discloses a portable loosening tiller, include the organism of compriseing spinning blade subassembly, transmission module and power module and be used for operating the handle of this organism, the axis of the centre line perpendicular to spinning blade subassembly of handle, characterized by: the handle is pivoted with a long-rod-shaped plough-assisting device for fixing the handle to the ground, the plough-assisting device can keep an included angle between the central line of the plough-assisting device and the central line of the handle to be fixed in a putting down state or a folding up state, and the plough-assisting device comprises a plough rod and a plough head capable of being inserted into the ground.

The plough rod and the plough head are pivoted, and when an included angle between the plough aid and the central line of the handle is fixed in a laid-down state, the included angle between the plough head and the central line of the plough rod is fixed at 60-120 degrees; when the included angle between the plough aid and the central line of the handle is fixed in a retracted state, the included angle between the plough head and the central line of the plough rod is fixed at +/-30 degrees.

Also comprises a pedal vertically arranged on the plough rod.

The plowshare is a conical arrow.

The handle is characterized by also comprising a shock absorber which is clamped between the machine body and the handle and is fixedly connected with the machine body, wherein the shock absorber can generate elastic deformation at least in the extension direction of the central line of the handle and the direction vertical to the central line.

The shock absorber is a U-shaped plate spring assembly.

The opening of the U-shaped plate spring assembly faces upwards.

The technical effects of the utility model are that:

firstly, the plowshare of the plough aid of the utility model can be deeply embedded into the ground, so that the machine body, the handle, the plough aid and the ground form a stable quadrangle; the self weight G of the machine body and the operating force F1 of the handle are obtained, the downward pedal force F2 applied to the plough aid by the feet of an operator is jointly applied to the machine body to form a downward operating force F, the downward operating force is far greater than the self weight of the machine body when the plough aid is not arranged, and the probability of jumping of the machine body is reduced, so that the potential safety hazard caused by jumping of the machine body is reduced or eliminated; meanwhile, the efficiency of ground breaking is improved due to the fact that the frequency of machine body jumping is reduced.

Two, the utility model discloses a bumper shock absorber can be at least at handle central line extension line direction and perpendicular this central line on the direction warp, the shock attenuation, has weakened rocking and the vibrations of the in-process handle that loosens the soil to user's fatigue has been alleviateed.

Thirdly, the utility model discloses owing to reduced the beat of organism, rocking and the vibrations of handle, therefore operation safety, comfortable.

Drawings

Fig. 1 is a schematic structural view of the portable scarifier of the present invention.

Fig. 2 is a schematic structural diagram of the U-shaped plate spring shock absorber of the present invention.

Fig. 3 is a stress analysis schematic diagram of the portable scarifier at the soil breaking stage.

The reference signs are:

in fig. 1: 1-power module 2-transmission module 3-rotary cutter component 4-shock absorber 5-handle 6-plough aid;

FIG. 2: 401-body connector 402-shock absorber 403-handle connector;

FIG. 3: 601-rotating shaft 602-plough bar 603-plough head 604-pedal 605-rotating shaft.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, the portable damping plough-aid ripper 10 of the present invention includes a power module 1, a transmission module 2, a rotary cutter assembly 3, a damping module 4, a handle assembly 5 and a plough-aid device 6.

The power module 1, the rotary cutter assembly 3 and the transmission module 2 form a scarifier body; the power module 1 is generally a small power source such as a small internal combustion engine or an electric motor. The horizontal layout of the axis of the rotary cutter assembly 3, the power module 1 is positioned above the soil loosening rotary cutter assembly 3, and the transmission module 2 is fixedly connected with the power module 1 and the soil loosening rotary cutter assembly 3 to carry out power transmission and power steering.

The central line of the handle assembly 5 is perpendicular to the axis of the rotary cutter assembly 3, and the damping module 4 fixedly connects the handle assembly 5 with the machine body.

Referring to fig. 3, the plow aid 6 is connected to the handle assembly 5 by a pivot 601 so that the plow aid 6 can be rotated about the handle assembly 5 for stowing and lowering. The plough aid 6 comprises a long rod type plough rod 602, the end part of the long rod type plough rod is provided with a plough head 603, the plough head 603 is in a conical or arrow shape, and at least one vertically arranged pedal 604 is arranged on the plough rod.

When breaking soil on a hard ground, the plough aid 6 is lowered and the ploughshare 603 is stepped into the soil by stepping on the pedal 604, as shown in fig. 3. Thus, the body, the handle assembly 5 and the plow aid 6, as well as the ground, form a stable quadrilateral. The weight G of the body itself, the operating force F2 of the handle, and the downward stepping force F1 applied to the plow aid 6 by the foot of the operator act together on the body to form a downward operating force F. When the rotary cutter component 3 rotates, a bouncing force F3 which is far away from the ground upwards and a friction force F4 which is opposite to the rotation direction are generated. Since the rotary cutter assembly 3 is not a continuous smooth cylinder, F3 and F4 are pulsating forces, and F3 is a main factor causing the machine body to jump when the soil is broken. The rotary cutter component 3 penetrates into the soil, and the bouncing force F3 is much smaller and the friction force F4 is increased unless hard objects such as stones, tree roots and the like are encountered.

According to the mechanical analysis, when the soil is broken, if:

f > = F3, the organism will not jump up;

f < F3, the jump distance and speed of the machine body are both much smaller and much safer.

In a word, the utility model discloses owing to set up the plough-aid ware for operating force F is bigger, and the probability that the organism is beated reduces. Therefore, the potential safety hazard caused by the jumping of the machine body is reduced or eliminated. Meanwhile, the efficiency of ground breaking is improved due to the fact that the frequency of machine body jumping is reduced.

And when the soil breaking is finished, the soil loosening stage is started. When the ripper is in the stage of loosening the soil, perhaps the ripper is in handling, on handle subassembly 5 can be accomodate around rotation 601 to the plough aid 6, this traffic direction and the transport that can conveniently control the organism.

When the plough aid 6 is stored on the handle assembly 5, the tip of the plough head 603 faces to a person, so that certain potential safety hazard can be generated; therefore, a plow head rotating shaft 605 is provided for the plow head 603 and the plow shaft 602, and the plow head 603 can be received in the plow shaft 602 by rotating around the plow head rotating shaft 605. The angle can also be adjusted when the plow head 603 is inserted into the ground.

Preferably, when the plough aid is put down, the included angle between the plough head and the plough rod is 60-120 degrees; when the plough-aid device is folded, the included angle between the plough head and the plough rod is +/-30.

According to the stress analysis of fig. 3, when the ground is broken, a pulsating jumping force which vertically faces upwards is generated between the machine body and the ground; when the soil is loosened, a pulsating force opposite to the rotation direction is generated between the rotary cutter assembly and the ground; the handle 5 is subjected to a pulsating force along the centerline of the handle assembly and a bouncing force in a direction perpendicular to the centerline of the handle assembly, which is manifested as a vibration of the handle. In order to solve the fatigue caused by large vibration, a shock absorber is arranged between the machine body and the handle assembly and can generate elastic deformation in the two directions so as to absorb and cut the shock. The shock absorber in the figure 2 has the best effect, simple structure and low price by comprehensively considering the shock influence from stress deformation, shock absorption direction, cost and volume.

Referring to fig. 2, the damper 4 is composed of a body connector 401, a damper 402, and a handle connector 403. One end of the machine body connector 401 is fixedly connected with the machine body; one end is fixedly connected with the shock absorber 402; one end of the handle connector 403 is fixedly connected with the shock absorber 402, and the other end is fixedly connected with the handle assembly 5; wherein the damper 402 is made of a U-shaped plate spring. The U-shaped leaf spring is perpendicular to the handle assembly 5 and opens upwards. With the structure, the U-shaped plate spring deforms to absorb the jumping force during the soil breaking to the maximum extent, and the pulsation generated in the soil loosening process can be effectively considered.

The shock absorber can also be composed of passive and passive shock absorption components such as a hydraulic shock absorber, a gas-liquid shock absorber and the like.

Claims

1. The utility model provides a portable loosening tiller, includes the organism of compriseing spinning blade subassembly, transmission module and power module and is used for operating the handle of this organism, the central line perpendicular to spinning blade subassembly's of handle axis, characterized by: the handle is pivoted with a long-rod-shaped plough-assisting device for fixing the handle to the ground, the plough-assisting device can keep an included angle between the central line of the plough-assisting device and the central line of the handle to be fixed in a putting down state or a folding up state, and the plough-assisting device comprises a plough rod and a plough head capable of being inserted into the ground.

2. The portable ripper of claim 1, wherein: the plough rod and the plough head are pivoted, and when an included angle between the plough aid and the central line of the handle is fixed in a laid-down state, the included angle between the plough head and the central line of the plough rod is fixed at 60-120 degrees; when the included angle between the plough aid and the central line of the handle is fixed in a retracted state, the included angle between the plough head and the central line of the plough rod is fixed at +/-30 degrees.

3. The portable ripper of claim 2, wherein: also comprises a pedal vertically arranged on the plough rod.

4. The portable ripper of claim 2, wherein: the plowshare is a conical arrow.

5. The portable scarifier of any one of claims 1-4, wherein: the handle is characterized by also comprising a shock absorber which is clamped between the machine body and the handle and is fixedly connected with the machine body, wherein the shock absorber can generate elastic deformation in the extension direction of the central line of the handle and the direction vertical to the central line.

6. The portable ripper of claim 5, wherein: the shock absorber is a U-shaped plate spring assembly.

7. The portable ripper of claim 6, wherein: the opening of the U-shaped plate spring assembly faces upwards.