CN201610115U - Control circuit by self-discharging vehicle force fetching safe operation - Google Patents
Control circuit by self-discharging vehicle force fetching safe operation Download PDFInfo
- Publication number
- CN201610115U CN201610115U CN2010201302434U CN201020130243U CN201610115U CN 201610115 U CN201610115 U CN 201610115U CN 2010201302434 U CN2010201302434 U CN 2010201302434U CN 201020130243 U CN201020130243 U CN 201020130243U CN 201610115 U CN201610115 U CN 201610115U
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- CN
- China
- Prior art keywords
- power taking
- electromagnetic valve
- relay
- force
- discharging vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a control circuit by self-discharging vehicle force fetching safe operation, which comprises a force fetching operation switch K3 and a force fetching electromagnetic valve V, the force fetch operation switch K3 and the force fetching electromagnetic valve V are connected between an anode and a cathode of a power supply after being connected in series. The utility model also comprises a relay and a free position switch K2, a coil J1 of the relay and the free position switch K2 are connected between the anode and the cathode of the power supply after being connected in series; a normally open contact K1 is connected between the anode and the cathode of the power supply after being connected with the force fetching operation switch K3 and the force fetching electromagnetic valve V in series. The utility model can enable the free position switch K2 to be automatically changed into an off state during the vehicle is running by the arrangements of the coil J1 of the relay and the normally open contact K1 in the circuit, thereby implementing the lock control of the force fetching operation switch K3, so that the safe effect that the force fetching operation switch K3 can not be used during the self-discharging vehicle is running.
Description
Technical field
The utility model relates to discharging vehicle power taking system field, refers to a kind of control circuit of discharging vehicle power taking safe in operation particularly.
Background technology
Conventionally known to one of skill in the art, discharging vehicle is forbidden the compartment lifting in cruising.The power taking operating switch of realizing the lifting of discharging vehicle compartment according to the rules is to disconnect in vehicle '.But in practical operation, because in the existing discharging vehicle power taking system behind the power taking operating switch series connection power taking electromagnetic valve between direct connection positive source and the negative pole, the power taking operating switch is controlled the power taking electromagnetic valve separately in this structure, in case forget when the driver and conductor drives and close the power taking operating switch, the power taking electromagnetic valve will make the lifting of discharging vehicle compartment.A lot of driver and conductors can ignore the problems referred to above, forget easily during driving and close the power taking operating switch, make the compartment lifting, in addition vehicle in motion the driver and conductor be difficult to find the lifting in compartment will cause the generation of accident like this.
Summary of the invention
The purpose of this utility model is exactly the control circuit that a kind of discharging vehicle power taking safe in operation will be provided, and makes discharging vehicle in motion, and its compartment is not subjected to the control of power taking operating switch and not lifting all the time.
For realizing this purpose, the control circuit of a kind of discharging vehicle power taking safe in operation that the utility model is designed, it comprises power taking operating switch K3, power taking electromagnetic valve V, be connected between positive source and the negative pole after power taking operating switch K3 and the power taking electromagnetic valve V series connection, it also comprises relay and neutral switch K2, the coil J1 of described relay be connected between described positive source and the negative pole after neutral switch K2 connects; Be connected between described positive source and the negative pole behind the open contact K1 series connection power taking operating switch K3 of described relay and the power taking electromagnetic valve V.
Advantage of the present utility model is: the setting in circuit by coil J1 in neutral switch K2, the relay and open contact K1, make neutral switch K2 when vehicle driving, transfer off-state automatically to, just can realize locking control, so also just realize the discharging vehicle safe effect that power taking operating switch K3 can't use when travelling power taking operating switch K3.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in the figure, a kind of control circuit of discharging vehicle power taking safe in operation, it comprises power taking operating switch K3, power taking electromagnetic valve V, be connected between positive source and the negative pole after power taking operating switch K3 and the power taking electromagnetic valve V series connection, it also comprises relay and neutral switch K2, the coil J1 of described relay be connected between described positive source and the negative pole after neutral switch K2 connects; Be connected between described positive source and the negative pole behind the open contact K1 series connection power taking operating switch K3 of described relay and the power taking electromagnetic valve V.
Working process of the present utility model is, change speed gear box is at Neutral Position when discharging vehicle stops, neutral switch K2 is closed, this moment, the coil J1 of relay switched on, the open contact K1 adhesive of relay, can control power taking electromagnetic valve V by closed power taking operating switch K3 this moment, thus the lifting in control discharging vehicle compartment.
When discharging vehicle in when driving, neutral switch K2 is for disconnecting, this moment, the coil J1 of relay cut off the power supply, the open contact K1 of relay often opens, power taking this moment operating switch K3 loses the control action to power taking electromagnetic valve V, thereby reaches the vehicle safe effect that power taking operating switch K3 can't use when travelling.
Claims (1)
1. the control circuit of a discharging vehicle power taking safe in operation, it comprises power taking operating switch K3, power taking electromagnetic valve V, be connected between positive source and the negative pole after power taking operating switch K3 and the power taking electromagnetic valve V series connection, it is characterized in that: it also comprises relay and neutral switch K2, the coil J1 of described relay be connected between described positive source and the negative pole after neutral switch K2 connects; Be connected between described positive source and the negative pole behind the open contact K1 series connection power taking operating switch K3 of described relay and the power taking electromagnetic valve V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201302434U CN201610115U (en) | 2010-03-09 | 2010-03-09 | Control circuit by self-discharging vehicle force fetching safe operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201302434U CN201610115U (en) | 2010-03-09 | 2010-03-09 | Control circuit by self-discharging vehicle force fetching safe operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610115U true CN201610115U (en) | 2010-10-20 |
Family
ID=42960748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201302434U Expired - Lifetime CN201610115U (en) | 2010-03-09 | 2010-03-09 | Control circuit by self-discharging vehicle force fetching safe operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223909A (en) * | 2013-05-06 | 2013-07-31 | 东风汽车有限公司 | Control device for preventing self-lifting of carriage of dump truck |
-
2010
- 2010-03-09 CN CN2010201302434U patent/CN201610115U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223909A (en) * | 2013-05-06 | 2013-07-31 | 东风汽车有限公司 | Control device for preventing self-lifting of carriage of dump truck |
| CN103223909B (en) * | 2013-05-06 | 2015-06-10 | 东风汽车公司 | Control device capable of preventing carriage of dumper from self lifting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |
|
| CX01 | Expiry of patent term |