阅读说明：本技术 燃气旋塞阀电磁阀驱动机构 (Electromagnetic valve driving mechanism of gas plug valve ) 是由 钟健 郑军妹 俞瑜 严力峰 于 2019-09-29 设计创作，主要内容包括：一种燃气旋塞阀电磁阀驱动机构,包括阀杆、拨杆、电磁阀及壳体,前述的阀杆能上下移动地设于壳体上,前述电磁阀设于壳体上并尾端具有密封垫及始终迫使密封垫伸出的弹簧,前述的拨杆能活动地设于壳体内,前述阀杆按压状态下能驱动拨杆,拨杆驱动电磁阀的密封垫进而燃气通路打开,其特征在于所述拨杆能横向移动地设于壳体内并至少部分为弹性部,该弹性部的弹性系数大于弹簧的弹性系数。拨杆自身具有弹性,能够在电磁阀密封垫顶到底的时候继续承受阀杆的下压力而变形,使电磁阀完全吸合之后仍能通过拨杆自身的弹性继续压缩,从而能顺利打开童锁。(The utility model provides a gas plug valve solenoid valve actuating mechanism, includes valve rod, driving lever, solenoid valve and casing, aforementioned valve rod can be located on the casing with reciprocating, and aforementioned solenoid valve is located on the casing and the tail end has sealed the pad and forces the spring that sealed pad stretches out all the time, and aforementioned driving lever can be located the casing movably, can drive the driving lever under the aforementioned valve rod pressing state, and the sealed pad and then the gas passageway of driving lever drive solenoid valve are opened, its characterized in that the driving lever can transversely move and locate in the casing and at least part be the elasticity portion, and the coefficient of elasticity of this elasticity portion is greater than the coefficient of elasticity of spring. The deflector rod has elasticity, and can continuously bear the downward pressure of the valve rod to deform when the sealing gasket of the electromagnetic valve is pushed to the bottom, so that the electromagnetic valve can be continuously compressed through the elasticity of the deflector rod after being completely sucked, and the child lock can be smoothly opened.)

1. A gas plug valve electromagnetic valve driving mechanism comprises a valve rod (2), a shifting rod (3), an electromagnetic valve (4) and a shell (1), wherein the valve rod (2) can be arranged on the shell (1) in a vertically moving mode, the electromagnetic valve (4) is arranged on the shell (1), the tail end of the electromagnetic valve is provided with a sealing gasket (41) and a spring (42) which forces the sealing gasket (41) to extend all the time, the shifting rod (3) can be movably arranged in the shell (1), the shifting rod (3) can be driven under the pressing state of the valve rod (2), the shifting rod (3) drives the sealing gasket (41) of the electromagnetic valve (4) and compresses the spring (42) so as to open a gas passage, it is characterized in that the deflector rod (3) can be transversely movably arranged in the shell (1) and is at least partially an elastic part (32), the elastic coefficient of the elastic portion (32) is larger than that of the spring (42).

2. The electromagnetic valve driving mechanism of the gas plug valve according to claim 1, characterized in that the lower end of the valve rod (2) is provided with a first conical surface (22), and correspondingly, one end of the deflector rod (3) is provided with a second conical surface (311) which is in line contact with the first conical surface (22) and can enable the deflector rod (3) to move transversely.

3. The electromagnetic valve driving mechanism of the gas plug valve according to claim 2, wherein the shift lever (3) comprises an expanding head (31), a rod-shaped elastic part (32) and a contact part (33) at the tail end, a cone is formed at the front end of the expanding head (31), the outer end surface of the cone forms the second conical surface (311), and the contact part (33) can be abutted against the sealing gasket (41).

4. The gas plug valve electromagnetic valve driving mechanism according to claim 3, wherein the elastic part (32) can be bent to form a spiral shape after being extruded.

5. The gas plug valve electromagnetic valve driving mechanism according to claim 3, wherein the tail end of the shift lever (3) is provided with a guide portion (34) contacting with the inner wall of the housing (1), and the touching portion (33) is formed by a middle projection of the guide portion (34).

6. The gas plug valve electromagnetic valve driving mechanism according to claim 3, wherein the elastic part (32) is made of polypropylene or thermoplastic elastomer.

7. The gas plug valve solenoid valve actuating mechanism according to claim 3, characterized in that said deflector rod (3) is in a single piece and is made of polypropylene or thermoplastic elastomer.

Technical Field

The invention relates to a plug valve of a gas stove, and belongs to the technical field of gas stoves.

Background

The existing gas plug valve mainly comprises a valve rod, a shifting rod and an electromagnetic valve. User ignition involves two actions: the knob is pressed down firstly, the microswitch is triggered to ignite the igniter, then the electromagnetic valve is rotated to attract, however, in the using process, the phenomenon that the flame is extinguished by hands which are loosened after the ignition of the gas stove or the electromagnetic valve is damaged by too strong force is easily caused, and the reason for the flameout by hands which are loosened is that a lot of users cannot operate in habit to ensure that the valve rod is pressed down at every time to cause that the attraction surface of the electromagnetic valve is not contacted and occurs.

The gas stove valve body disclosed as the application number 201210048952.1 of the applicant comprises a shell and a valve core, wherein a valve needle is inserted in the valve core, a knob rod is arranged above the valve needle, the lower part of the valve needle is abutted against a convex block at one end of an ejector rod, the other end of the ejector rod is provided with a push arm abutted against one end of an electromagnetic valve, a child lock on the valve body is unlocked and a gas pipeline is connected in a rotating mode in the process that the knob rod is pressed downwards, and the pull-in surfaces in the electromagnetic valve are mutually attracted by the knob rod in the process that the knob rod is pressed downwards.

The stroke A of the child lock is required to be larger than the suction stroke B of the electromagnetic valve, so that the suction surface in the electromagnetic valve is ensured to be sucked before the child lock is opened. For this purpose, the stroke of B is either reduced or increased, and since the minimum stroke of B is determined by its minimum intake area, only the stroke of a can be increased. In this case, the material of the conventional deflector rod is a metal material which is not easy to deform, and the design of the deflector rod cannot continuously compress the deflector rod after the electromagnetic valve is closed, so that the child lock cannot be opened.

In addition, when the existing gas plug valve is operated, the valve rod is pressed, the valve rod moves in the vertical direction to transmit the circular motion of the shifting rod, and the cam of the shifting rod pushes the sealing gasket of the electromagnetic valve to move in the horizontal direction, so that a gas channel is formed. And each time the solenoid valve is used, the deflector rod of the solenoid valve is subjected to instant impact from the valve rod, and the durability of the solenoid valve is damaged.

Disclosure of Invention

The invention aims to solve the technical problem of providing the electromagnetic valve driving mechanism of the gas plug valve, which ensures that the suction surface in the electromagnetic valve is sucked before the child lock is opened, aiming at the technical current situation.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a gas plug valve solenoid valve actuating mechanism, includes valve rod, driving lever, solenoid valve and casing, aforesaid valve rod can be located on the casing with reciprocating, aforesaid solenoid valve is located on the casing and the tail end has sealed the pad and forces the spring that sealed pad stretches out all the time, aforesaid driving lever can be located the casing movably, aforesaid valve rod can drive the driving lever under the state of pressing down, driving lever drive solenoid valve seal pad and compression spring and then the gas passageway is opened, its characterized in that driving lever can locate in the casing with lateral shifting and at least part is the elasticity portion, the coefficient of elasticity of this elasticity portion is greater than the coefficient of elasticity of spring.

The lower end of the valve rod is provided with a first conical surface, and correspondingly, one end of the deflector rod is provided with a second conical surface which is in line contact with the first conical surface and can enable the deflector rod to move transversely. Two conical surface cooperations directly turn into the horizontal motion of solenoid valve with the vertical motion of valve rod, simple structure, and the motion resistance is little, is line contact between valve rod and the driving lever, and frictional resistance is little, and stability is good.

The deflector rod comprises an expansion head, a rod-shaped elastic part and a contact part at the tail end, wherein the front end of the expansion head is provided with a cone, the outer end surface of the cone forms a second cone surface, and the contact part can be abutted to the sealing gasket.

Further, the elastic part is in a spiral shape after being extruded.

In order to ensure that the touch part accurately and quickly acts on the sealing gasket, the tail end of the shifting lever is provided with a guide part which is in contact with the inner wall of the shell, and the touch part is formed by the middle bulge of the guide part.

Preferably, the deflector rod is made of polypropylene (PP) or thermoplastic elastomer (TPE).

Preferably, the deflector rod is a unitary piece and is made of polypropylene or a thermoplastic elastomer.

Compared with the prior art, the invention has the advantages that: the spring is elastic, and can continuously bear the downward pressure of the valve rod to deform when the sealing gasket of the electromagnetic valve is pushed to the bottom, so that the electromagnetic valve can be continuously compressed through the elasticity of the deflector rod after being completely sucked, and the child lock can be smoothly opened; the design ensures that the electromagnetic valve is completely attracted before the child lock is unlocked, so that the stroke of the child lock of the plug valve can be designed to be longer, a user can completely push open the sealing gasket of the electromagnetic valve by pressing down at each time, and the phenomenon of hand loosening and flameout caused by incomplete attraction of the electromagnetic valve due to incomplete pressing is avoided. In addition, the improved electromagnetic valve deflector rod has good bending fatigue resistance.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a perspective sectional view of fig. 1.

Fig. 4 is an enlarged schematic view of the driving lever after compression deformation.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1, 2 and 3, the electromagnetic valve driving mechanism of the gas plug valve in the present embodiment includes a valve rod 2, a shift lever 3, an electromagnetic valve 4 and a housing 1, where the housing 1 is composed of a body 11 and a bottom cover 12, and a cavity 111 for the electromagnetic valve 4 is provided on one side of the body 11. The valve rod 2 is arranged on the body 11 in a way of moving up and down, the lower end of the valve rod 2 is provided with a first conical surface 22, and the valve rod 2 is reset through a reset spring 21. The valve rod 2 can touch the ignition switch 5 after being pressed down. The electromagnetic valve 4 is arranged on the cavity 111 of the shell 1, the tail end of the electromagnetic valve is provided with a sealing gasket 41 and a spring 42 which always forces the sealing gasket 41 to extend out, the shift lever 3 can be movably arranged in the shell 1, the shift lever 3 can be driven under the pressing state of the valve rod 2, and the shift lever 3 drives the sealing gasket 41 of the electromagnetic valve 4 and compresses the spring 42 so as to open a gas passage.

Referring to fig. 4, the shift lever 3 is transversely movably disposed in the housing 1, the shift lever 3 includes an enlarged head 31, a rod-shaped elastic portion 32, a touching portion 33 at the tail end, and a guiding portion 34, a cone is formed at the front end of the enlarged head 31, a second tapered surface 311 is formed on the outer end surface of the cone, and the second tapered surface 311 is in line contact with the first tapered surface 22 to enable the shift lever 3 to transversely move.

The guide portion 34 is located at the rear end of the shift lever 3, and the touching portion 33 is formed by a central projection of the guide portion 34. The contact portion 33 can abut against the gasket 41. The elastic portion 32 is connected to the enlarged head 31 and the guide portion 34 and can be bent in a spiral shape after being pressed, and the elastic coefficient of the elastic portion 32 is larger than that of the spring 42.

The material of the elastic portion 32 in this embodiment is polypropylene or thermoplastic elastomer. In view of ease of manufacture, the stem 3 may be integrally formed as a single piece, either of polypropylene or a thermoplastic elastomer.

The first conical surface and the second conical surface are matched to change the vertical movement of the valve rod into the horizontal movement of the deflector rod, so as to push the electromagnetic valve to open and close; the shifting rod is in line contact with the valve rod, so that the friction resistance is small, and compared with the existing shifting rod, the shifting rod has the advantages of no movement dead angle, good hand feeling, easiness in realization and good stability.

The deflector rod is made of plastic materials with certain elasticity at least in part, can bear certain deformation in the axial direction, and can be continuously pressed down by means of the elasticity of the deflector rod when the valve rod is pressed down to the complete suction end point of the electromagnetic valve, so that the child lock can be opened at the moment. The stroke A of the child lock is larger than the stroke B of the suction of the electromagnetic valve, so that the suction of the suction surface in the electromagnetic valve is ensured before the child lock is opened, and the smooth ignition is ensured. Meanwhile, due to the elasticity, the bending fatigue resistance of the deflector rod is greatly improved.