CN201530325U

CN201530325U - Vehicle seat perception system

Info

Publication number: CN201530325U
Application number: CN2009201994894U
Authority: CN
Inventors: 余香琴
Original assignee: Zhejiang Hangcha Imp&expco Ltd
Current assignee: Hangcha Group Co Ltd
Priority date: 2009-10-29
Filing date: 2009-10-29
Publication date: 2010-07-21
Anticipated expiration: 2019-10-29

Abstract

The utility model relates to a vehicle seat perception system, aiming at leading the perception system to be characterized by having stable performance, low cost, energy conservation and convenient use. The technical scheme of the vehicle seat perception system is as follows: one circuit of Acc end of a switch QK is preheated and started to be connected with a forward relay and a reverse relay by a shift switch S2, and two normally open contacts of the S2 are connected with the coil of a detecting relay K4; another circuit of Acc is connected with a seat switch S1 and the coil of a relay K1, and the coil of the relay K1 is connected with the coil of a flameout delay pull-in relay KT in parallel; another circuit of Acc is connected with the contacts of the relay KT and the common ends of contacts of a flameout relay K2, and the contacts of the K2 are connected with a flameout magnetic valve SV; and a starting end R2 of the QK is connected with the common ends of contacts of the K1, normally closed contacts of the K1 are connected with a relay K3, the other end of the coil of the K3 is connected with a detecting relay K4, normally open contacts of the K3 are connected with the coil of a starting relay K5, and normally open contacts of the K5 are connected with the starting end of a starter. The vehicle seat perception system is applicable to internal combustion counterbalance forklift trucks with the weight of 1 to 10 tons.

Description

The seat sensory perceptual system

Technical field

The utility model relates to a kind of seat sensory perceptual system.Be applicable to the 1-10t engine balance forklift.

Background technology

The working environment of general fork truck all compares badly, in case misoperation will cause the damage of personnel and property, for example chaufeur is bent to do other thing and correctly is not sitting on the driver's seat in the fork truck operational process, or the people does not also get on the bus and has just started car, or the like similarly situation all will cause fork truck under state out of control, to continue to overtake, cause unnecessary safety misadventure.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of seat sensory perceptual system of high safety is provided, and should have that stable performance, cost are low, energy savings, characteristics easy to use, can guarantee driver drives vehicle safety.

The technical scheme that the utility model adopted is: the seat sensory perceptual system, has preheat starting switch QK, its common port B1 connects the positive pole of Vehicle Power, it is characterized in that: the Acc of preheat starting switch QK holds one the tunnel to connect forward relay and reverse relay respectively through wire fuse, Gear-shift switch S2 successively, two open contacts of this Gear-shift switch S2 connect the coil that detects relay K 4, the other end power connection negative pole of K4 coil through diode VD1 and VD2 respectively again; Another road of Acc coil of joint chair chair switch S 1 and seat switch relay K 1 successively behind wire fuse, the coils from parallel connection of coils of the coil of K1 and flame-out time-delay attracting electric relay KT; Acc one the tunnel connects the contact of flame-out time-delay attracting electric relay KT and the contact common port of flame-out relay K 2 again behind wire fuse, one end of K2 coil joins with the contact of flame-out time-delay attracting electric relay KT, the other end of K2 coil is together with the also contact power connection negative pole of K1, KT, and the contact of K2 meets flame-out electromagnetic valve SV, the other end power connection negative pole of SV; The contact common port of the start end R2 joint chair chair switch relay K1 of preheat starting switch QK, coil and the contact common port that the K1 normally closed contact connects meta relay K 3, another termination of K3 coil detects relay K 4 contact common ports, K4 normally closed contact power connection negative pole, the K3 open contact connects the coil of starting relay K5, the other end power connection negative pole of K5 coil, the direct power connection positive pole of K5 contact common port, the K5 open contact connects the starter starting end.

The beneficial effects of the utility model are: this system responds to chaufeur and whether is sitting in driver seat with correct posture by being installed in seat inductor in the driver seat, if chaufeur is not sitting on the driver seat with correct posture, can't start fork truck; Driving engine is when operation simultaneously, and chaufeur left seat after 5 seconds, and fork truck can auto shut down.This system has that stable performance, cost are low, energy savings, advantage easy to use, can protect driving engine effectively, the traffic safety of protection chaufeur.

Description of drawings

Fig. 1 is a systematic schematic diagram of the present utility model.

The specific embodiment

As shown in Figure 1, present embodiment is used for 1-10t engine balance forklift (inapplicable machinery is flame-out), power supply is taken from Vehicular system voltage, this sensory perceptual system be connected to preheat starting switch QK above, wherein: the common port B1 of QK end connects the positive pole of Vehicle Power through wire fuse (FUSE).The Acc termination of preheat starting switch QK has three the tunnel, the first via of Acc connects forward relay and reverse relay respectively through wire fuse, Gear-shift switch S2 successively, two open contacts of this Gear-shift switch S2 connect the coil that detects relay K 4, the other end power connection negative pole of K4 coil through diode VD1 and VD2 respectively again.Acc the second the tunnel behind wire fuse the coil of joint chair chair switch S 1 and seat switch relay K 1 successively, the coils from parallel connection of coils of the coil of K1 and flame-out time-delay attracting electric relay KT.The Third Road of Acc connects the contact of flame-out time-delay attracting electric relay KT and the contact common port of flame-out relay K 2 behind wire fuse, one end of K2 coil joins with the contact of flame-out time-delay attracting electric relay KT, the other end of K2 coil is together with the also contact power connection negative pole of K1, KT, and the contact of K2 meets flame-out electromagnetic valve SV, the other end power connection negative pole of SV.The contact common port of the start end R2 joint chair chair switch relay K1 of preheat starting switch QK, coil and the contact common port that the K1 normally closed contact connects meta relay K 3, another termination of K3 coil detects relay K 4 contact common ports, K4 normally closed contact power connection negative pole, the K3 open contact connects the coil of starting relay K5, the other end power connection negative pole of K5 coil, the direct power connection positive pole of K5 contact common port, the K5 open contact connects the starter starting end.

The principle of work of this sensory perceptual system is: when chaufeur is sitting on the seat with correct posture, seat switch S1 disconnects, if this moment, Gear-shift switch S2 was not interposing at neutral gear, and is advancing or retreating on the shelves, when chaufeur preheat starting switch QK is being beaten to R2 (startup) and hold, the also energising of Acc this moment (operation) end, detect relay K 4 coil electricities, the adhesive of K4 relay, at this moment K1, K3, K4 open circuit, meta relay K 3 is failure to actuate (contact is still on normally closed contact), can't fire an engine.Have only when Gear-shift switch S2 places neutral gear, detect relay K 4 and be failure to actuate (contact is still in normally off), K1, K3, this road of K4 are paths, meta relay K 3 coil electricities, the open contact closure, starting relay K5 coil is also switched on simultaneously, open contact closure, the energising of starter starting end, make the engine starting operation, thereby realize the neutral gear starting, prevent to cause danger advancing, retreat a grade fire an engine.Equally, S2 places neutral gear when Gear-shift switch, and chaufeur is not sitting on the seat with correct posture or is leaving fire an engine under the situation of seat, seat switch S1 closure, relay K 1 coil electricity, normally closed contact disconnects, open circuit in K1, K3, this road of K4, meta relay K 3 is failure to actuate (contact is still in normally open), can't fire an engine, thus realize that chaufeur is not sitting on the seat with correct posture or leaves seat is not allow fire an engine.Have only the chaufeur of working as to be sitting on the seat with correct posture, Gear-shift switch S2 places on the neutral gear simultaneously, could the normal starting driving engine.Above-mentioned two safety protection functions all are in order to prevent that chaufeur from off-square mode fire an engine, causing danger.

Driving engine is when operation, when chaufeur left seat more than 5 seconds, seat switch S1 closure, flame-out time-delay attracting electric relay KT coil electricity, its contact time-delay adhesive, flame-out simultaneously relay K 2 coil electricities, normally closed contact disconnects, flame-out electromagnetic valve SV outage, the combustion cutoff oil feeding line, the driving engine auto shut down has prevented that chaufeur from leaving fork truck for a long time and forget flame-outly, prevents danger simultaneously and save fuel oil.When fork truck in the travels down of jolting, chaufeur leaves seat and is no more than more than 5 seconds, fork truck can not stop working.

Claims

1. seat sensory perceptual system, has preheat starting switch QK, its common port B1 connects the positive pole of Vehicle Power, it is characterized in that: the Acc of preheat starting switch QK holds one the tunnel to connect forward relay and reverse relay respectively through wire fuse, Gear-shift switch S2 successively, two open contacts of this Gear-shift switch S2 connect the coil that detects relay K 4, the other end power connection negative pole of K4 coil through diode VD1 and VD2 respectively again; Another road of Acc coil of joint chair chair switch S 1 and seat switch relay K 1 successively behind wire fuse, the coils from parallel connection of coils of the coil of K1 and flame-out time-delay attracting electric relay KT; Acc one the tunnel connects the contact of flame-out time-delay attracting electric relay KT and the contact common port of flame-out relay K 2 again behind wire fuse, one end of K2 coil joins with the contact of flame-out time-delay attracting electric relay KT, the other end of K2 coil is together with the also contact power connection negative pole of K1, KT, and the contact of K2 meets flame-out electromagnetic valve SV, the other end power connection negative pole of SV; The contact common port of the start end R2 joint chair chair switch relay K1 of preheat starting switch QK, the K1 normally closed contact connects the coil and the contact common port of meta relay K 3, another termination of K3 coil detects relay K 4 contact common ports, K4 normally closed contact power connection negative pole, the K3 open contact connects the coil of starting relay K5, the other end power connection negative pole of K5 coil, the direct power connection positive pole of K5 contact common port, the K5 open contact connects the starter starting end.