CN203378450U

CN203378450U - Start structure of rotary tiller

Info

Publication number: CN203378450U
Application number: CN201320274451.5U
Authority: CN
Inventors: 王东
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2014-01-08
Anticipated expiration: 2023-05-17

Abstract

The utility model discloses a start structure of a rotary tiller, which belongs to the field of rotary tillers and solves the problem that the start structure in the prior art without a safety limiting structure has potential safety hazard. The start structure of a rotary tiller comprises an armrest and a handle, wherein the handle is rotatably connected with the armrest. The start structure also comprises a control mechanism capable of limiting the rotation of the handle relative to the armrest; the control mechanism is arranged on the armrest and comprises a limiting frame; and the limiting frame can move relative to the armrest and can move onto a rotation track of the handle to stop the handle and limit the rotation of the handle relative to the armrest. According to the start structure disclosed by the utility model, since the handle for limiting the start of a rotary blade is arranged at the armrest, misoperation on the handle and consequent accidental start of the rotary blade can be prevented, and some accidents are effectively avoided.

Description

A kind of startup structure of rotovator

Technical field

The utility model relates to the startup structure in rotovator field, particularly a kind of rotovator.

Background technology

The rake a kind of farm tools that plows is one of master operation of agro-farming, and in Modern Agricultural, the general rotovator that uses is ploughed.The actuating mechanism operated by rotary motion of rotovator is in armrest portion, while the handled easily personnel carry out the rotary blade work that rotovator is controlled rotovator.

In prior art, as the Chinese patent that patent publication No. is 102027817A, actuating mechanism generally comprises handrail and handle, handle rotation is connected on handrail, when operating personnel operate rotovator, pull handle when need to hold handrail, thereby start the rotary blade of rotovator.

Above-mentioned this prior art has defect, under certain situation, operating personnel do not wish to start rotary blade, but operating personnel may maloperation pull handle causes rotary blade to start, this just likely causes some accidents, gently damage rotary blade or motor, heavy likely cause personnel's injury accident.

Summary of the invention

The purpose that the utility model will reach is to provide a kind of startup structure of rotovator, with release mechanism, can prevent rotary blade due to operating personnel's maloperation accidental activation.

In order to achieve the above object, the utility model adopts following technical scheme: a kind of startup structure of rotovator, comprise handrail and handle, and handle rotation is connected on handrail, also comprise and can limit the controlling organization that handle rotates relative to handrail, controlling organization is arranged on handrail; Described controlling organization comprises position-limited rack, and position-limited rack can and be moveable on the rotary motion trace of handle relative to handrail movement keeps out handle and rotate relative to handrail with the restriction handle.

At first operating personnel need to move to open position by position-limited rack pulling before handle starts rotary blade, thereby can avoid accident to open rotary blade causing the accident.

Further, described position-limited rack and described handrail are rotationally connected by rotating shaft, described controlling organization also comprises the torsion spring that is set in rotating shaft, and an end of torsion spring connects position-limited rack, the other end connects handle, and torsion spring produces the elastic force on the rotary motion trace that makes position-limited rack forward handle to.Torsion spring can make the position-limited rack self-return, prevents that operating personnel from forgetting that reversing position-limited rack causes controlling organization ineffective.

Further, described handrail is provided with chute, described position-limited rack handrail relatively slides on the rotary motion trace of handle along chute, described controlling organization also comprises spring, one end of spring connects position-limited rack, the other end connects handrail, and spring produces the elastic force on the rotary motion trace that makes position-limited rack slide into handle.Another kind of applicable position-limited rack mounting structure.

Further, described handle is provided with positive stop key, positive stop key is fixedly connected with handle or is structure as a whole, positive stop key is with handle rotation, position-limited rack relatively handrail movement being moveable on the rotary motion trace of positive stop key of handle keep out positive stop key with the restriction positive stop key with handle rotation, thereby the restriction handle rotates relative to handrail.Increase positive stop key and can strengthen the control effect of position-limited rack to handle.

Further, described position-limited rack comprises location division, and when position-limited rack moves on the rotary motion trace of described positive stop key, location division and positive stop key offset to limit positive stop key with handle rotation, thereby the restriction handle rotates relative to handrail.

Further, described position-limited rack is provided with plectrum.Can make operating personnel's movement limiting frame more convenient.

Further, described handrail comprises handle support, and handle support is fixedly connected with handrail or is structure as a whole, and described handle is articulated on the handle support of handrail; Described position-limited rack is connected in the handle support of handrail.Reduce the complexity of part, thereby can reduce manufacture difficulty and cost.

After adopting technique scheme, the utlity model has following advantage:

Be provided with the handle that starts rotary blade for limiting at arm rest, can prevent from shaking hands to be misused to cause the rotary blade accidental activation, effectively avoided some accidents.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is position-limited rack schematic diagram in the closed position in a kind of embodiment of the utility model;

The schematic side view that Fig. 2 is middle position-limited rack embodiment illustrated in fig. 1;

Fig. 3 is middle position-limited rack embodiment illustrated in fig. 1 schematic diagram in an open position;

Fig. 4 is the schematic diagram that middle handle embodiment illustrated in fig. 1 starts rotary blade.

Embodiment

Fig. 1-Figure 4 shows that a kind of embodiment of the present utility model.

Handrail 1 is provided with handle support 3, and handle support 3 is welded on handrail 1, shake hands 5 to be hinged on handle support 3, and the rotary blade that can control rotovator starts.On handle support 3 by the rotating shaft limited location frame 4 of transferring, position-limited rack 4 rotates on handle support 3, handle 5 is provided with positive stop key 2, positive stop key 2 rotates with handle 5, position-limited rack 4 can turn on the movement locus of positive stop key 2, reach closed position, now the limiting section 41 of position-limited rack 4 offsets to limit the rotation of positive stop key 2 with positive stop key 2, thereby making to shake hands 5 can't be pulled.Be provided with the torsion spring (not shown) be socketed in rotating shaft between position-limited rack 4 and handle support 3, torsion spring produces and makes position-limited rack turn to the elastic force of closed position, prevents that operating personnel from forgetting that reversing position-limited rack causes controlling organization ineffective.Also be provided with plectrum 6 on position-limited rack 4, make operating personnel can stir easily plectrum 6 with movement limiting frame 4.

When operating personnel need to start the rotary blade of rotovator, need at first position-limited rack 4 be moved to open position, then just can pull handle 5 and start rotary blade, so just can prevent from shaking hands to be misused to cause the rotary blade accidental activation, effectively avoid some accidents.

In addition, different from above-described embodiment is, also a chute can be set on handle support, spring is set in chute, and position-limited rack is slidably connected in the chute of handle support, position-limited rack is slidably to the movement locus of positive stop key, it is closed position, keep out positive stop key and rotate with the restriction positive stop key, thereby handle can't be rotated, spring produces and makes positive stop key slide to the elastic force of closed position.

Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.

Claims

1. the startup structure of a rotovator, comprise handrail (1) and handle (5), it is upper that handle (5) is rotatably connected on handrail (1), and it is characterized in that: also comprise and can limit the controlling organization that handle (5) rotates relative to handrail (1), controlling organization is arranged on handrail (1); Described controlling organization comprises position-limited rack (4), and position-limited rack (4) can move and be moveable on the rotary motion trace of handle (5) relative to handrail (1) and keep out handle (5) and rotate relative to handrail (1) with restriction handle (5).

2. the startup structure of a kind of rotovator according to claim 1, it is characterized in that: described position-limited rack (4) is rotationally connected by rotating shaft with described handrail (1), described controlling organization also comprises the torsion spring that is set in rotating shaft, one end of torsion spring connects position-limited rack (4), the other end connects handle (5), and torsion spring produces the elastic force on the rotary motion trace that makes position-limited rack (4) forward handle (5) to.

3. the startup structure of a kind of rotovator according to claim 1, it is characterized in that: described handrail (1) is provided with chute, described position-limited rack (4) handrail (1) relatively slides on the rotary motion trace of handle (5) along chute, described controlling organization also comprises spring, one end of spring connects position-limited rack (4), the other end connects handrail (1), and spring produces the elastic force on the rotary motion trace that makes position-limited rack (4) slide into handle (5).

4. according to the startup structure of claim 2 or 3 described a kind of rotovators, it is characterized in that: described handle (5) is provided with positive stop key (2), positive stop key (2) is fixedly connected with or is structure as a whole with handle (5), positive stop key (2) rotates with handle (5), position-limited rack (4) can move and be moveable to relative to handrail (1) and keep out positive stop key (2) on the rotary motion trace of positive stop key (2) of handle (5) and rotates with handle (5) with restriction positive stop key (2), thereby restriction is shaken hands, rotate relative to handrail (1) (5).

5. the startup structure of a kind of rotovator according to claim 4, it is characterized in that: described position-limited rack (4) comprises location division (41), when position-limited rack (4) moves on the rotary motion trace of described positive stop key (2), location division (41) offsets to limit positive stop key (2) with positive stop key (2) and rotates with handle (5), thereby restriction handle (5) rotates relative to handrail (1).

6. according to the startup structure of claim 2 or 3 described a kind of rotovators, it is characterized in that: described position-limited rack (4) is provided with plectrum (6).

7. according to the startup structure of the arbitrary described a kind of rotovator of claim 1-3, it is characterized in that: described handrail (1) comprises handle support (3), handle support (3) is fixedly connected with or is structure as a whole with handrail (1), and described handle (5) is articulated on the handle support (3) of handrail (1); Described position-limited rack (4) is connected in the handle support (3) of handrail (1).