CN200982232Y

CN200982232Y - Push type vacuum oil-stopping device

Info

Publication number: CN200982232Y
Application number: CN 200620158637
Authority: CN
Inventors: 孙郑民; 罗再源
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-29
Filing date: 2006-11-29
Publication date: 2007-11-28
Anticipated expiration: 2016-11-29

Abstract

The utility model discloses a push-type vacuum fuel shut-off device installed on the high pressure oil pump of the diesel engine and connected with the vacuum device, which comprises a solenoid valve, a valve body, a cylinder and a piston, characterized in that the solenoid valve is installed on the valve body which is connected with the cylinder end; the piston is positioned in the cylinder and the end thereof passes through the valve body which is positioned with an air duct channel; one end of the air duct channel is connected with the cylinder and another end thereof is connected with the vacuum device; the solenoid valve comprises a solenoid valve pipe, a solenoid core, wherein the solenoid valve pipe communicates with the air duct channel and the solenoid valve core moves upward and downward in the solenoid pipe to connect or disconnect the air duct channel; a return spring is positioned between the piston end and the cylinder end in the cylinder. Vacuum is used as power supply for the utility model, the push-type vacuum fuel shut-off device, which is integrated with electricity, mechanics and pneumatics, compact in structure, easy in installation, firm, beautiful and durable, low in current and great in power, and long in operation life.

Description

Pushing-type vacuum cut-out device

Technical field

The utility model relates to a kind of diesel engine cut-out device, relates in particular to a kind of pushing-type vacuum cut-out device.

Background technique

Existing diesel-oil vehicle stops oily blanket to be had and adopts electromagnet or two kinds of schemes of ecp cut-out device, electromagnet to utilize coil electricity to produce the moving high-pressure service pump fuel cut-off handle that promotes of moving Railway transportation to reach and stop the flame-out purpose of oil; The high-pressure air source generation powered piston rod movement that the high-pressure air source device that has on the ecp cut-out device employing car provides reaches and stops the flame-out purpose of oil.There is following deficiency in above-mentioned two kinds of methods, and the work of electromagnet electric current is big, easy burn-out, and installation precision requires very high, and operating life is short; The high-pressure air source that the ecp cut-out device adopts the high-pressure air source device that has on the car to provide produces power and reaches and stop the flame-out purpose of oil, can't use on the diesel-oil vehicle of high-pressure air source not having.

Summary of the invention

The purpose of this utility model is, provides that a kind of diesel car that does not have a high-pressure air source is adoptable to stop oily blanket, and reduces rate of fault.

Another purpose of the present utility model is that efficient profit is loaded vacuum equipment with car and realized that the automatically controlled oil that stops is flame-out, improves vehicle performance.

To achieve these goals, the utility model provides a kind of pushing-type vacuum cut-out device, is installed on the diesel engine high pressure oil pump and with vacuum system to link to each other, and comprises solenoid valve, valve body, cylinder, piston, its characteristics are that described solenoid valve is installed on the described valve body; Described valve body links to each other with described cylinder end; Described piston is positioned at its end of described cylinder through described valve body; Described valve body is provided with air guide channel, one end of described air guide channel links to each other with described cylinder, the other end of described air guide channel links to each other with described vacuum system, described solenoid valve comprises solenoid valve conduit, electromagnetic valve core, described solenoid valve conduit is communicated with described air guide channel, and described electromagnetic valve core moves up and down conducting or disconnects described air guide channel in described solenoid valve conduit; In described cylinder, be provided with Returnning spring between pistons end and the cylinder end.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are, also comprise solenoid valve, described solenoid valve is electrically connected with the externally fed system by plug connector.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are, comprise that also the gas joint connects described air guide channel, and described valve body links to each other with described vacuum system by the gas joint.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are that described piston links to each other with the fuel cut-off handle of high-pressure fuel pump of diesel engine.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are that described piston links to each other by universal joint or flexible connection structure with the fuel cut-off handle of high-pressure fuel pump of diesel engine.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are that described universal joint or flexible connection structure are provided with dirt-proof boot.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are that the outer end of described cylinder is equipped with rear end cover; The external port that described piston runs through described valve body is equipped with front cover, and described front cover is provided with dirt-proof boot.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are, are provided with seal ring between described piston and the cylinder or between cylinder and the valve body or between gas joint and the valve body.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are to have the fixing device that is connected with high pressure oil pump on the described valve body.

Above-mentioned pushing-type vacuum cut-out device, its characteristics are that described fixing device is fixed support or mounting hole.

Effect of the present utility model is that pushing-type vacuum cut-out device utilizes vacuum to do power source, electricity, machine, gas integral structure, and compact structure, easy for installation, firm attractive and durable, and the electric current low-power is big, long service life.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 the utility model fundamental diagram;

Fig. 2 the utility model structural drawing;

Fig. 3 solenoid valve connects the connection-peg schematic representation outward;

Fig. 4 the utility model connection diagram.

Wherein, reference character

1 valve body, 2 cylinders

3 pistons, 4 Returnning springs

5 rear end covers, 6,10 y-type seal rings

7 supports, 8,15,16 seal rings

9 solenoid valves, 91 electromagnetic valve coils

92 solenoid valve conduits, 93 electromagnetic valve cores

11 joint dirt-proof boots, 12 universal joints

13 dirt-proof boots, 14 front covers

17 gas joints, 18 gas joint dirt-proof boots

19 plug connectors, 20 fuel cut-off handles

21 vacuum systems, 22 air guide channels

Gas joint dust cover plug connector dust cover

Embodiment

See also Fig. 1 the utility model fundamental diagram; Fig. 2 the utility model structural drawing; Fig. 3 solenoid valve connects the connection-peg schematic representation outward; Fig. 4 the utility model connection diagram.

The utility model pushing-type vacuum cut-out device is installed on the diesel engine high pressure oil pump and with vacuum system and links to each other, and comprises valve body 1, cylinder 2, piston 3, Returnning spring 4, solenoid valve 9.The utility model working principle is as shown in Figure 1, when solenoid valve is switched on, closes the atmosphere import, opens vacuum pumping opening, and vacuum enters in the cylinder, promotes piston rod, promotes fuel cut-off handle to cut-out position.After the solenoid valve outage, close vacuum pumping opening, open air inlet simultaneously, cylinder piston is automatically reset under action of reset spring, piston push rod promotes fuel cut-off handle to the throttle open position, makes diesel engine throttle recover original state.

Solenoid valve 9 by bolt on valve body 1, valve body 1 links to each other with cylinder 2 ends, piston 3 is positioned at cylinder 2 its ends through valve body 1, on valve body 1, be provided with air guide channel 22, air guide channel one end links to each other with cylinder 2, the air guide channel the other end links to each other with vacuum system 21 by gas joint 17, gas joint 17 can be arranged at valve body 1 except with the junction surface of cylinder 2 other arbitrary face; Solenoid valve comprises electromagnetic valve coil 91, solenoid valve conduit 92, electromagnetic valve core 93, electromagnetic valve core 93 is arranged in the solenoid valve conduit 92, solenoid valve conduit 92 is communicated with air guide channel 13, electromagnetic valve coil generates an electromagnetic field by connecting voltage DC24V/12V, make electromagnetic valve core 93 move up and down conducting or disconnection air guide channel 22 in solenoid valve conduit 92, air guide channel diameter and shape can design according to user's different needs; In cylinder, be provided with Returnning spring 7 between pistons end and the cylinder end, when closing the vacuum gas port, automatically reset at Returnning spring 7 effect lower cylinder pistons; Solenoid valve 9 is electrically connected with the externally fed system by plug connector 19, and the plug connector that is electrically connected usefulness can be other any-modes such as automobile connector assembly, bare wire head, independent terminals; Piston 3 links to each other with the fuel cut-off handle 20 of high-pressure fuel pump of diesel engine, and piston can adopt universal joint 12 to be connected or other Placement with fuel cut-off handle, and the stroke of present embodiment piston is 30 millimeters, can change according to user's needs.

Vacuum system 21 can use vacuum system vehicle-mounted or that equipment carries, links to each other with the vacuum cut-out device with high-pressure air pipe.

The end of cylinder 2 has rear end cover 5, and piston runs through the valve body end and has front cover 14, is provided with y-type seal ring 10 between piston and the front cover, and front cover is provided with dirt-proof boot 13, is provided with seal ring 15 between front cover and the dirt-proof boot; Be provided with y-type seal ring 6 between piston and the cylinder, be provided with seal ring 8 between cylinder and the valve body, be provided with seal ring 16 between gas joint and the valve body; Gas joint 17 is provided with gas joint dust cover 18; Plug connector 19 is provided with the plug connector dust cover.

The present embodiment valve body is to adopt the mode that fixed support 7 is set at valve body with being connected of Injection Pump, can certainly adopt the method that other connections such as mounting hole are set.

Elastic cable paper length can change according to actual connection request.

The utility model pushing-type vacuum cut-out device is installed on the diesel engine high pressure oil pump, is connected with the high pressure oil pump fuel cut-off handle by universal joint.When bridge sends cutoff command, to the solenoid valve energising, use vacuum powered fuel cut-off handle, thereby realize the automatically controlled oil that stops of diesel engine flame-out to the oil pump cut-out position.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1, a kind of pushing-type vacuum cut-out device is installed on the diesel engine high pressure oil pump and with vacuum system and links to each other, and comprises solenoid valve, valve body, cylinder, piston, it is characterized in that described solenoid valve is installed on the described valve body; Described valve body links to each other with described cylinder end; Described piston is positioned at its end of described cylinder through described valve body; Described valve body is provided with air guide channel, one end of described air guide channel links to each other with described cylinder, the other end of described air guide channel links to each other with described vacuum system, described solenoid valve comprises solenoid valve conduit, electromagnetic valve core, described solenoid valve conduit is communicated with described air guide channel, and described electromagnetic valve core moves up and down conducting or disconnects described air guide channel in described solenoid valve conduit; In described cylinder, be provided with Returnning spring between pistons end and the cylinder end.

2, pushing-type vacuum cut-out device according to claim 1 is characterized in that, also comprises solenoid valve, and described solenoid valve is electrically connected with the externally fed system by plug connector.

3, pushing-type vacuum cut-out device according to claim 1 is characterized in that, comprises that also the gas joint connects described air guide channel, and described valve body links to each other with described vacuum system by the gas joint.

4, pushing-type vacuum cut-out device according to claim 1 is characterized in that, described piston links to each other with the fuel cut-off handle of high-pressure fuel pump of diesel engine.

5, pushing-type vacuum cut-out device according to claim 4 is characterized in that, described piston links to each other by universal joint or flexible connection structure with the fuel cut-off handle of high-pressure fuel pump of diesel engine.

6, pushing-type vacuum cut-out device according to claim 5 is characterized in that described universal joint or flexible connection structure are provided with dirt-proof boot.

7, pushing-type vacuum cut-out device according to claim 1 is characterized in that the outer end of described cylinder is equipped with rear end cover; The external port that described piston runs through described valve body is equipped with front cover, and described front cover is provided with dirt-proof boot.

8, pushing-type vacuum cut-out device according to claim 1 is characterized in that, is provided with seal ring between described piston and the cylinder or between cylinder and the valve body or between gas joint and the valve body.

9, pushing-type vacuum cut-out device according to claim 1 is characterized in that, has the fixing device that is connected with high pressure oil pump on the described valve body.

10, pushing-type vacuum cut-out device according to claim 9 is characterized in that, described fixing device is fixed support or mounting hole.