CN202413559U - Pneumatic control valve of safety control system of dump truck power takeoff device - Google Patents
Pneumatic control valve of safety control system of dump truck power takeoff device Download PDFInfo
- Publication number
- CN202413559U CN202413559U CN2011205732205U CN201120573220U CN202413559U CN 202413559 U CN202413559 U CN 202413559U CN 2011205732205 U CN2011205732205 U CN 2011205732205U CN 201120573220 U CN201120573220 U CN 201120573220U CN 202413559 U CN202413559 U CN 202413559U
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- CN
- China
- Prior art keywords
- control valve
- power takeoff
- control system
- valve body
- pneumatic valve
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- 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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Abstract
The utility model discloses a pneumatic control valve of a safety control system of a dump truck power takeoff device. The safety control system of the power takeoff device comprises a pneumatic control valve and a duplex rocker control switch; the pneumatic control valve is connected with the duplex rocker control switch by an external electric wire; the other end of the duplex rocker control switch is connected with a dump truck chassis central control unit; the pneumatic control valve comprises a pneumatic control valve body, a microswitch, a fault block valve core, a descending cavity and an operating handle; the operating handle is arranged at the upper end of the pneumatic control valve body, and the lower end of the pneumatic control valve body is connected with a cam by a thread; the descending cavity is arranged under the cam; a through hole is arranged between the descending cavity and a cavity where the fault block valve core is arranged; and the microswitch is arranged on the top of the pneumatic control valve body and corresponds to the fault block valve core. The pneumatic control valve of the safety control system effectively solves the problem that accidents are easily caused by a switch of the dump truck power takeoff device which is out of control.
Description
Technical field
The utility model belongs to Pneumatic valve, is specifically related to a kind of Pneumatic valve of dumping car power takeoff safety control system.
Background technology
At present; Two types of domestic dumping car chassis great majority all are that the power takeoff on-off controlling system has been installed on the chassis, and according to operating instruction, power take-off valve should be closed when lifting/step-down operation finishes; If chaufeur is forgotten when driving or former thereby power take-off valve is not thrown off for " saving trouble " etc.; Automobile is under the situation of running at high speed, and oil pump causes compartment " automatically " lifting with the hydraulic oil pressure feed liquor cylinder pressure of certain pressure, and there is very big potential safety hazard in it.Dumping car compartment in the process of moving is prone to " automatically " lifting, and accidents caused easily, social influence is abominable, and more many families have brought misfortune.
Summary of the invention
In order to overcome the problems referred to above that the prior art field exists, the purpose of the utility model is, a kind of dumping car power takeoff safety control system Pneumatic valve is provided, and it is out of control to solve the dumping car power take-off valve, easily accidents caused problem.
The dumping car power takeoff safety control system Pneumatic valve that the utility model provides; Said power takeoff safety control system comprises Pneumatic valve, duplex seesaw master cock; Said Pneumatic valve is connected with duplex seesaw master cock through external cord, and the duplex seesaw master cock other end is connected with dumping car chassis Central Processing Unit (CPU); Said Pneumatic valve comprises gas control valve body, micro-switch, disconnected retaining spool, decline chamber, operating handle; Operating handle is arranged on gas control valve body upper end; Its lower end is threaded with cam, and the decline chamber is arranged on below the cam, is provided with through hole between the cavity at disconnected retaining spool place and decline chamber; Micro-switch is arranged on gas control valve body top, and is corresponding with disconnected retaining spool; Said decline chamber also comprises decline chamber air extractor duct, decline chamber piston, and decline chamber air extractor duct is arranged on the bottom of gas control valve body; It also comprises rubber gasket, and its lower end is provided with support spring, is arranged on gas control valve body bottom, and is corresponding with the decline chamber.
The dumping car power takeoff safety control system Pneumatic valve that the utility model provides; Its beneficial effect is; Adopt the control system of this Pneumatic valve; Actv. has solved the power take-off valve that compartment " automatically " lifting and artificial origin cause does not throw off, and guarantees the safety of driving, the possibility that the reduction accident takes place.
Description of drawings
Fig. 1 is the integral structure scheme drawing of the utility model embodiment;
Fig. 2 is the catenation principle scheme drawing that Pneumatic valve shown in Figure 1 is installed in dumping car power takeoff safety control system;
Mark among the figure:
1. disconnected retaining spool; 2. external cord; 3. cam; 4. micro-switch; 5. operating handle; 6. decline chamber piston; 7. rubber gasket; 8. gas control valve body; 9. decline chamber air extractor duct; 10. duplex seesaw master cock; 11. dumping car chassis Central Processing Unit (CPU); 12.30 normal open live wire; 13. through hole; 14. Pneumatic valve.
The specific embodiment
With reference to the accompanying drawings, in conjunction with embodiment, the dumping car power takeoff safety control system Pneumatic valve to the utility model provides carries out detailed explanation.
Embodiment
With reference to Fig. 1-Fig. 2; The dumping car power takeoff safety control system Pneumatic valve of present embodiment; The power takeoff safety control system comprises Pneumatic valve 14, duplex seesaw master cock 10; Said Pneumatic valve 14 is connected with duplex seesaw master cock 10 through external cord 2, and duplex seesaw master cock 10 other ends are connected with Central Processing Unit (CPU) 11, the 30 normal open live wires 12 on dumping car chassis; Said Pneumatic valve comprises gas control valve body 8, micro-switch 4, disconnected retaining spool 1, decline chamber, operating handle 5; Operating handle 5 is arranged on gas control valve body 8 upper ends; Its lower end is threaded with cam 3, and the decline chamber is arranged on below the cam 3, is provided with through hole 13 between the cavity at disconnected retaining spool 1 place and decline chamber; Micro-switch 4 is arranged on gas control valve body 8 tops, and is corresponding with disconnected retaining spool 1; Said decline chamber also comprises decline chamber air extractor duct 9, decline chamber piston 6, and decline chamber air extractor duct 9 is arranged on the bottom of gas control valve body 8; It also comprises rubber gasket 7, and its lower end is provided with support spring, is arranged on gas control valve body 8 bottoms, and is corresponding with the decline chamber.
Dumping car rotates through operating handle 5 when descending, and drives the cam 3 that links into an integrated entity with it and rotates; Depress decline chamber piston 6; Decline chamber piston 6 presses down rubber gasket 7 and pushes open, and the gas that gas control valve body 8 lower ends are inserted will get into the decline chamber, and gets into the decline chamber of dumping car lifting valve through decline chamber air extractor duct 9; The switching-over of control lifting valve, body of tipper carriage descends; The pressed gas that descends simultaneously in the chamber gets into the vestibule at disconnected retaining spool 1 place through through hole 13, and it is up to promote disconnected retaining spool 1, and disconnected retaining spool 1 is connected micro-switch 4 contact disks, forms turning circuits through external cord 2.
Claims (3)
1. dumping car power takeoff safety control system Pneumatic valve; It is characterized in that: said power takeoff safety control system comprises Pneumatic valve, duplex seesaw master cock; Said Pneumatic valve is connected with duplex seesaw master cock through external cord, and the duplex seesaw master cock other end is connected with dumping car chassis Central Processing Unit (CPU); Said Pneumatic valve comprises gas control valve body, micro-switch, disconnected retaining spool, decline chamber, operating handle; Operating handle is arranged on gas control valve body upper end; Its lower end is threaded with cam, and the decline chamber is arranged on below the cam, is provided with through hole between the cavity at disconnected retaining spool place and decline chamber; Micro-switch is arranged on gas control valve body top, and is corresponding with disconnected retaining spool.
2. dumping car power takeoff safety control system Pneumatic valve according to claim 1, it is characterized in that: said Pneumatic valve also comprises rubber gasket, its lower end is provided with support spring, is arranged on gas control valve body bottom, and is corresponding with the decline chamber.
3. dumping car power takeoff safety control system Pneumatic valve according to claim 1 is characterized in that: the decline chamber of said Pneumatic valve also comprises decline chamber air extractor duct, decline chamber piston, and decline chamber air extractor duct is arranged on the bottom of gas control valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205732205U CN202413559U (en) | 2011-12-17 | 2011-12-17 | Pneumatic control valve of safety control system of dump truck power takeoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205732205U CN202413559U (en) | 2011-12-17 | 2011-12-17 | Pneumatic control valve of safety control system of dump truck power takeoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202413559U true CN202413559U (en) | 2012-09-05 |
Family
ID=46738346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205732205U Expired - Lifetime CN202413559U (en) | 2011-12-17 | 2011-12-17 | Pneumatic control valve of safety control system of dump truck power takeoff device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202413559U (en) |
-
2011
- 2011-12-17 CN CN2011205732205U patent/CN202413559U/en not_active Expired - Lifetime
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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: 20120905 |
|
| CX01 | Expiry of patent term |