CN213510929U - Oil-gas switching mechanism of dual-fuel generator - Google Patents

Abstract

The utility model belongs to the technical field of the supply component part of general combustion engine combustible mixture has the carburetor that uses liquid and gaseous fuel, specifically is a dual fuel generator oil gas switching mechanism, including gas female joint, gas male joint and with the micro-gap switch who fires the oil pipe way control valve and be connected, micro-gap switch and the quiet connection of gas female joint, swing joint has the trigger piece on the gas female joint, trigger piece and micro-gap switch separation and reunion cooperation, trigger piece and the cooperation of gas male joint linkage. The scheme realizes the simplification of the structure of the switching mechanism and facilitates the connection operation of the switching mechanism.

Description

Oil-gas switching mechanism of dual-fuel generator

Technical Field

The utility model belongs to the technical field of the supply component part of general combustion engine combustible mixture has the carburetor of using liquid and gaseous fuel, specifically is a dual-fuel generator oil gas switching mechanism.

Background

The oil-gas switching mechanism of the dual-fuel generator is a mechanism for realizing the quick switching of two fuels, namely fuel oil and fuel gas, and comprises a fuel gas female joint and a fuel gas male joint, wherein the fuel gas male joint is connected with the fuel gas female joint in an inserting manner, a microswitch is arranged on the fuel gas female joint, a contact block opposite to the microswitch is arranged on the fuel gas male joint, the microswitch is connected with a fuel oil control valve controller, and when the fuel gas male joint is inserted into the fuel gas female joint, the contact block can trigger the microswitch, so that the microswitch can disconnect a fuel oil pipeline through a fuel oil electromagnetic valve controller, and the use of switching from the fuel oil to the fuel gas is realized; when the gas male connector is separated from the gas female connector, the contact block can be separated from the microswitch together with the gas male connector, so that the gas is switched to the fuel oil for use.

For example, in patent document CN207647642U entitled dual fuel combination control switch for engine, a gas pipe (as shown in fig. 1) is disclosed for communicating with a source of gaseous fuel, LPG; the support is provided with a microswitch, the support is sleeved on a female quick connector (a fuel gas female connector), the microswitch is provided with a reed, a contact block is arranged on a male quick connector (a fuel gas male connector), the contact block is abutted against the reed when the male quick connector is connected with the female quick connector, and the male quick connector is connected with a fuel gas pipe. The contact block is arranged on the male quick connector, so that the male quick connector is complex to manufacture and process, and when the male quick connector is connected with the female quick connector, the contact block needs to be aligned to the microswitch firstly and then connected, and the inconvenience of connection operation can be caused by the operation mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure and convenient operation's dual-fuel generator oil gas switching mechanism.

In order to achieve the aim, the utility model discloses a basic scheme provides a dual fuel generator oil gas switching mechanism, including gas female joint, gas male joint and with the micro-gap switch who fires the oil pipe way control valve and be connected, micro-gap switch and gas female joint quiet connection, swing joint has the trigger piece on the gas female joint, trigger piece and micro-gap switch separation and reunion cooperation, trigger piece and the cooperation of gas male joint linkage.

The principle and the beneficial effect of the basic scheme are as follows: the trigger piece is arranged on the gas female connector, and the trigger piece is linked with the gas male connector to trigger the microswitch, so that the trigger piece does not need to be arranged on the gas male connector, and the manufacturing difficulty of the gas male connector is reduced; simultaneously, trigger piece and micro-gap switch all install on gas female joint, and their relative position all can be by better setting, and when gas male joint was connected with gas female joint, trigger piece removed the micro-gap switch's accuracy higher to simplified the connection operation between gas male joint and the gas female joint, need not to aim at earlier trigger piece and micro-gap switch's position and just connected the operation like the connection operation among the prior art.

Further, the female joint of gas includes the joint pipe, there is the locating part along radial sliding connection on the joint pipe, the outside of joint pipe has the sleeve pipe that can promote the locating part towards the inside gliding of joint pipe along the slip direction sliding connection of perpendicular to locating part, be provided with the sleeve spring that makes sleeve pipe and locating part keep in contact on the joint pipe, the inside of joint pipe along the axial seal sliding connection have with the public joint complex valve of gas, be provided with the valve spring that makes the valve seal joint pipe in the joint pipe, the valve can promote the outside slip of locating part towards the joint pipe, trigger piece and sleeve pipe static connection, micro-gap switch and joint pipe static connection, be provided with on the public joint of gas with locating part complex spacing groove.

Before the fuel gas male connector is connected into the fuel gas female connector, the valve is in a blocking state to the connector pipe under the action of the valve spring, at the moment, the limiting piece is extruded to one side deviated to the outer side of the connector pipe by the valve, so that the limiting piece supports and limits one end of the sleeve pipe, at the moment, the sleeve pipe spring is in a state of large elastic potential energy, the trigger piece is also in a contact state with the microswitch under the support of the sleeve pipe, and the fuel oil pipeline is in an oil supply state; when the gas male joint is inserted into the gas female joint and pushes the valve to move, the valve is gradually separated from the limiting piece, so that one end of the limiting piece, facing the inner side of the joint pipe, loses the limiting effect of the valve and can move, at the moment, the sleeve pushes the limiting piece to move towards the inner part of the joint pipe under the action of the sleeve spring, so that the limiting piece is clamped into the limiting groove of the gas male joint, meanwhile, the sleeve moves under the action of the sleeve spring, so that the limiting piece is positioned at one side deviated to the inner side of the joint pipe, so that the limiting and fixing of the gas male joint are realized, at the moment, the valve is in a state of communicating the joint pipe with the gas male joint under the pushing effect of the gas male joint, and the trigger is separated from the micro switch along with the movement of the sleeve, so that the micro switch controls the fuel pipeline to be disconnected, at the moment, the gas, thereby realizing the switching between fuel oil and gas.

Further, the trigger piece is a circle of bosses arranged along the circumferential direction of the sleeve. By adopting the arrangement mode, after the sleeve rotates along the axis, the trigger piece can still accurately trigger the microswitch, so that whether the sleeve rotates or not is not required to be considered when the sleeve is installed and used, and the microswitch cannot be accurately triggered by the trigger piece, and the processing and manufacturing difficulty of the sleeve is reduced.

Further, the limiting part is a sphere. By adopting the arrangement mode, the installation and the use of the limiting part are facilitated, and meanwhile, when the sleeve and the valve move relative to the limiting part, the limiting part can reduce resistance to the sleeve and the valve through rotation, so that the sleeve and the valve can move more smoothly.

Drawings

Fig. 1 is a schematic diagram of a gas female joint, a gas male joint and a micro switch in an embodiment of the oil-gas switching mechanism of the dual-fuel generator of the present invention;

FIG. 2 is a schematic view of the gas female connector of FIG. 1 in a fuel supply state;

fig. 3 is a schematic view of the gas female connector in fig. 1 in a gas supply state.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the gas female connector comprises a gas female connector 1, a connector pipe 11, a valve spring 12, a valve 13, a trigger 14, a sleeve 15, a sleeve spring 16, a limiting piece 17, a micro switch 2, a switch plectrum 21, a gas male connector 3 and a limiting groove 31.

The embodiment is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: an oil-gas switching mechanism of a dual-fuel generator comprises a fuel gas female joint 1, a fuel gas male joint 3 and a micro switch 2 connected with a fuel oil pipeline control valve, and the rest structures are referred to the related description in the prior art and are not repeated; the gas female joint 1 comprises a joint pipe 11, and a limiting piece 17 is connected to one end of the joint pipe 11, which is inserted adjacent to the gas male joint 3, in a sliding manner along the radial direction, wherein in the embodiment, the limiting piece 17 is preferably a sphere; the outer side of the joint pipe 11 is connected with a sleeve 15 in a sliding manner along the axial direction, the sleeve 15 is matched with the limiting piece 17 in a sliding manner, and the limiting piece 17 can be pushed to move towards the inner side of the joint pipe 11 through the movement of the sleeve 15; a sleeve spring 16 which enables the sleeve 15 to keep contact with the limiting piece 17 is sleeved on the joint pipe 11; the interior of the joint pipe 11 is connected with a valve 13 matched with the gas male joint 3 in a sealing and sliding manner along the axial direction, the valve 13 is in a tubular shape with one closed end and one open end, a through hole is formed in the side part of the valve 13 close to the closed end of the valve 13, and the relative sliding between the through hole and the joint pipe 11 can be realized through the sliding of the valve 13, so that the opening and the closing of the through hole are realized; a valve spring 12 which enables a valve 13 to keep a state of closing the joint pipe 11 is arranged in the joint pipe 11; the shutter 13 is slidably engaged with the stopper 17 and the stopper 17 can be pushed to slide toward the outside of the joint pipe 11 by the movement of the shutter 13.

The microswitch 2 is fixedly arranged on the joint pipe 11 through a bracket, the sleeve 15 is provided with a trigger 14 which is in clutch fit with the microswitch 2, in the embodiment, the trigger 14 is a circle of boss arranged along the circumferential direction of the sleeve 15, the boss and the sleeve 15 are integrally formed, the microswitch 2 is the microswitch 2 with a switch shifting piece 21, and the connection and disconnection of the microswitch 2 are realized through the swing of the switch shifting piece 21; the boss drives the switch shifting sheet 21 of the microswitch 2 to swing through the movement of the sleeve 15, so that the connection and disconnection of the microswitch 2 are realized. A circle of limiting groove 31 matched with the limiting piece 17 is arranged on the circumference of the gas male connector 3.

The specific implementation process is as follows: when fuel is supplied (as shown in fig. 2), the gas male connector 3 and the gas female connector 1 are in a separated state, at this time, the valve 13 is in a state of closing the joint pipe 11 of the gas female connector 1, and the valve 13 supports the limiting piece 17 under the action of the valve spring 12, so that the limiting piece 17 is in a state of deviating to the outer side of the joint pipe 11, at this time, the sleeve 15 enables the trigger 14 and the switch plectrum 21 of the micro switch 2 to be in a contact state under the supporting and limiting action of the limiting piece 17, at this time, the micro switch 2 is in a connected state, and the sleeve spring 16 is in a compressed state; when the gas supply state needs to be switched, the gas male connector 3 is inserted into the gas female connector 1, the gas male connector 3 pushes the valve 13 to move when being inserted, so that the valve 13 is gradually separated from the limiting piece 17, after the valve 13 is separated from the limiting piece 17, one end of the limiting piece 17, which is positioned at the inner side of the connector tube 11, loses the supporting function, so that the sleeve 15 moves due to losing the supporting function of the limiting piece 17, the limiting piece 17 moves towards the inner side of the connector tube 11 under the action of the sleeve 15, the trigger 14 is driven to be gradually separated from the switch plectrum 21 of the micro switch 2 along with the movement of the sleeve 15, the switch plectrum 21 swings for a certain angle to disconnect the micro switch 2, so that a fuel pipeline connected with the micro switch 2 is disconnected to stop supplying oil, at the moment, the limiting piece 17 just blocks into the limiting groove 31 of the gas male connector 3 when moving towards the inner part, thus, the gas male connector 3 is fixed to the gas female connector 1, and further, gas can be supplied (as shown in fig. 2), thereby switching from fuel to gas. When the gas needs to be switched to the fuel oil state, the fuel gas female joint 1 can be operated in the reverse sequence to recover the fuel oil supply state.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (4)

1. The utility model provides a dual fuel generator oil gas switching mechanism, includes gas female joint, gas male joint and the micro-gap switch who is connected with fuel pipeline control valve, micro-gap switch and gas female joint quiet connection, its characterized in that: the gas female connector is movably connected with a trigger piece, the trigger piece is in clutch fit with the microswitch, and the trigger piece is in linkage fit with the gas male connector.

2. The dual fuel generator oil and gas switching mechanism of claim 1, wherein: the gas female joint includes the joint pipe, there is the locating part along radial sliding connection on the joint pipe, the slip direction sliding connection that perpendicular to locating part is followed in the outside of joint pipe has the sleeve pipe that can promote the locating part towards the inside gliding of joint pipe, be provided with the sleeve spring that makes sleeve pipe and locating part keep in contact on the joint pipe, the inside of joint pipe along the axial seal sliding connection have with gas male joint complex valve, be provided with the valve spring that makes the valve seal joint pipe in the joint pipe, the valve can promote the outside slip of locating part towards the joint pipe, trigger piece and sleeve pipe static connection, micro-gap switch and joint pipe static connection, be provided with on the gas male joint with locating part complex spacing groove.

3. The dual fuel generator oil and gas switching mechanism of claim 2, wherein: the trigger piece is a circle of bosses arranged along the circumferential direction of the sleeve.

4. The dual fuel generator oil and gas switching mechanism of claim 3, wherein: the limiting piece is a sphere.

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