With the rotovator throttle adjustment bar of security protection
Technical field
The present invention relates to a kind of throttle adjustment bar, particularly relate to a kind of throttle adjustment bar being applied to rotovator.
Background technology
Under normal circumstances, rotovator is all control the forward-reverse of rotovator by throttle adjustment bar, if the action bars that maloperation touches when operating, machine accidental activation, probably causes operator injured, sturdy milk potential safety hazard.
Throttle operation bar on market, for avoiding maloperation, is generally increase the operational torque of action bars, makes that action bars is more difficult to be pulled, and this mode can cause operating difficulties, the unmanageable shortcoming of throttle speed.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the present invention increases a stopping means on throttle operation bar, can making rotovator that the maloperation of action bars can not occur when stopping, avoiding unexpected injury, have easy and simple to handle, be not easy maloperation, feature that safety coefficient is high.After increase limiting and protecting device, the moment needed for action bars just can greatly reduce, and operability greatly improves.
The technical solution adopted in the present invention is:
With the rotovator throttle adjustment bar of security protection, it is characterized in that described throttle adjustment bar comprises:
Rotovator handrail, action bars, throttle connecting line, dynamic state limit thing block, position limitation protection shell, starting protection button, containing an action bars limited block bottom action bars,
Rotovator handrail and action bars hinged, helical torsional spring is equipped with in hinged place;
In the middle part of action bars, fix a throttle connecting line, drive throttle when pull joystick, change throttle size;
The adjacent action bars of position limitation protection shell is arranged on rotovator handrail; Position limitation protection shell comprises can the dynamic state limit thing block of transverse shifting and the starting protection button for controlling dynamic state limit thing block;
Described dynamic state limit thing block and action bars limited block are configured for limiting the safety device that action bars rotates.
Optimally, described action bars is by the displacement restriction of spacing protecting sheathing and the twisting force by helical torsional spring; When without applied external force, safety device starts, and namely dynamic state limit thing block and action bars limited block interlock, and rotovator handrail and action bars keep orthogonal state, and action bars cannot be moved;
After pressing starting protection button, dynamic state limit thing block moves to action bars center, misplaces with action bars limited block, and buckle state is removed, and action bars is in freely-movable state.
Optimally, described action bars limited block is in the outer of articulated section, action bars lower end, in boss-shaped; Described dynamic state limit thing block is barb-like, forms step button with the boss of action bars limited block.
Optimally, containing a projection inside described starting protection button, containing a stopper slot corresponding with boss on the articulated section of described action bars.Press starting protection button, described projection and stopper slot snapping, the relative position of position limitation protection shell and action bars is protected fixing.
Dynamic state limit thing block is with starting protection button motion, and dynamic state limit thing block (can not press starting protection button) when original state and the limited block of action bars base projections interlocks, and action bars cannot be moved;
After pressing starting protection button, dynamic state limit thing block moves to action bars center, misplaces with limited block bottom action bars, does not interlock with action bars, and action bars just can freely towards a direction motion.
The material of above-mentioned dynamic state limit thing block and starting protection button motion is elastoplast; Aforesaid operations bar and position limitation protection shell are hard plastic.
Compared with prior art, the invention has the beneficial effects as follows: than existing throttle operation bar, after increase limiting and protecting device, can avoid that rotovator maloperation occurs and cause rotovator startup to cause personal property damage to grasp, increase safety; Make the power needed for action bars bar less simultaneously, increase operability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of rotovator throttle adjustment bar;
Fig. 2 is the view after starting protection button pressed by rotovator throttle adjustment bar;
In figure, 1-rotovator handrail, 2-action bars, 3-throttle connecting line, 4-dynamic state limit thing block, 5-position limitation protection shell, 6-starting protection button, 7-action bars limited block.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of rotovator throttle adjustment bar, comprising:
Rotovator handrail 1, action bars 2, throttle connecting line 3, dynamic state limit thing block 4, position limitation protection shell 5, starting protection button 6, action bars limited block 7
Rotovator handrail 1 is hinged with action bars 2, helical torsional spring is equipped with in hinged place, limiting by spacing protecting sheathing 5 and be subject to the active force of helical torsional spring, make rotovator handrail 1 and action bars 2 without keeping orthogonal state during active force, and action bars 2 can only move towards a direction;
In the middle part of action bars 2, fix a throttle connecting line 3, drive throttle when pull joystick 2, change throttle size;
Position limitation protection shell 5 is fixed with rotovator handrail 1, adjacent action bars 2;
Position limitation protection shell 5 there are starting protection button 6 and dynamic state limit thing block 4;
Dynamic state limit thing block 4 moves with starting protection button 6, and dynamic state limit thing block 4 (can not press starting protection button) when original state and action bars limited block 7 interlocks, and action bars cannot be moved;
As shown in Figure 2, after pressing starting protection button 6, dynamic state limit thing block 4 moves to action bars 2 center, misplaces, do not interlock with it with action bars limited block 7, and action bars 2 just can freely towards a direction motion.
The material that above-mentioned dynamic state limit thing block 4 and starting protection button 6 move is elastoplast;
Aforesaid operations bar 2 and position limitation protection shell 5 are hard plastic;
This throttle operation bar is when operating, if do not press starting protection button, then action bars is subject to the active force in 2 directions and cannot moves, then can not pull throttle connecting line, ensure that safety.After pressing starting protection button, the event resolves of dynamic state limit thing block, action bars just can normally use.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.