CN212901619U

CN212901619U - Ignition switch structure of gas valve

Info

Publication number: CN212901619U
Application number: CN202021754746.9U
Authority: CN
Inventors: 曾建勇
Original assignee: Foshan Tengkai Valve Co ltd
Current assignee: Foshan Tengkai Valve Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-06
Anticipated expiration: 2030-08-20

Abstract

The utility model relates to an ignition switch structure of a gas valve, which comprises a valve main body, a valve core and a terminal connected with an ignition device are arranged on the valve main body, the valve core is connected with a torsion bar, the upper end of the valve core is connected with a trigger spring, the trigger spring comprises a trigger part and a connecting part which are arranged from top to bottom, the width of the trigger part is larger than that of the connecting part, a pressing sheet is arranged on the torsion bar, the pressing sheet pushes and presses the upper end of the trigger part to press the lower end of the trigger part down to a conductive sheet of, because the width of the trigger part is larger and the stress is more uniform when the trigger part is contacted with the pressing sheet, the trigger spring has better parallelism when receiving pressure integrally and is not easy to shift, meanwhile, the width of the connecting part is small, the connecting part can be supported through the upper end part of the valve core, an outward convex positioning structure does not need to be additionally arranged on the valve core, the structure of the valve core is simplified, and the production cost is reduced.

Description

Ignition switch structure of gas valve

Technical Field

The utility model belongs to a gas equipment technical field, concretely relates to ignition switch structure of gas valve.

Background

Generally, a torsion bar is pressed to ignite the gas valve, the torsion bar drives a trigger piece to be in contact with an ignition terminal, so that an ignition device is started, in order to enable the torsion bar to reset after ignition is completed, a spring device is further arranged on the torsion bar, and a spring on an existing gas valve ignition switch is poor in parallelism and prone to displacement under the condition of pressure.

Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide an ignition switch structure of gas valve, aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.

The purpose of the utility model is realized like this:

the utility model provides an ignition switch structure of gas valve, includes the valve main part, is equipped with the case in the valve main part and the terminal of being connected with ignition, and the case is connected with the torsion bar, and the upper end of case is connected with trigger spring, and trigger spring is including the trigger part and the connecting portion that set up from top to bottom, and the width of trigger part is greater than the width of connecting portion, is equipped with the preforming on the torsion bar, and the preforming bulldozes the upper end of trigger part and makes the lower extreme of trigger part push down to the conductive sheet of terminal.

The torsion bar is provided with a positioning lug, and the valve core is provided with a positioning groove corresponding to the positioning lug.

The lower end of the torsion bar is connected with a valve needle for opening the air valve.

And the torsion bar is provided with a connecting concave part corresponding to the valve needle.

And the valve needle is provided with a return spring for returning the valve needle.

The pressing sheet is provided with a plurality of limiting blocks, and the inner side of the upper end of the triggering part is tightly connected with the limiting blocks.

The utility model has the advantages that:

because the width of trigger part is great, and the atress is more even when contacting with the preforming, consequently, trigger spring has better parallelism when wholly receiving pressure, is difficult to take place to shift the phenomenon, and simultaneously, the width of connecting portion is less, can carry out the bearing to it through the upper end of case, need not additionally to set up outside convex location structure on the case, simplifies the structure of case, reduction in production cost.

Drawings

Fig. 1 is a schematic cross-sectional view of a torsional trigger spring in a reset state according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the torsion trigger spring in a compressed state according to the embodiment of the present invention.

Fig. 3 is a perspective view of an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-3, the ignition switch structure of the gas valve comprises a valve body 1, a valve core 2 and a terminal 3 connected with an ignition device are arranged on the valve body 1, the valve core 2 is connected with a torsion bar 4, the upper end of the valve core 2 is connected with a trigger spring 5, the trigger spring 5 comprises a trigger part 51 and a connecting part 52 which are arranged from top to bottom, the width of the trigger part 51 is larger than that of the connecting part 52, a pressing sheet 6 is arranged on the torsion bar 4, the pressing sheet 6 pushes and presses the upper end of the trigger part 51 to press the lower end of the trigger part 51 downwards onto a conducting sheet 31 of the terminal 3, because the width of the trigger part 51 is larger, the stress is more uniform when the trigger part is in contact with the pressing sheet 6, the trigger spring 5 has better parallelism when receiving pressure integrally, and is not easy to generate displacement phenomenon, meanwhile, the width of the connecting part 52 is smaller, the connecting part can be supported by the upper, the structure of the valve core 2 is simplified, and the production cost is reduced.

Furthermore, a positioning bump 41 is arranged on the torsion bar 4, a positioning groove 21 corresponding to the positioning bump 41 is arranged on the valve core 2, and the torsion bar 4 can drive the valve core 2 to rotate through the matching of the positioning bump 41 and the positioning groove 21, so as to control the open-close state of the air circuit of the switch structure.

Further, a needle 7 for opening a gas valve (not shown) is connected to a lower end of the torsion bar 4.

Further, the torsion bar 4 is provided with a connecting recess 42 corresponding to the needle 7.

Further, the needle 7 is provided with a return spring (not shown) for returning the needle.

Further, be equipped with a plurality of stopper 61 on the preforming 6, the upper end inboard and the stopper 61 zonulae occludens of trigger part 51, stopper 61 can play the effect of location to trigger part 51, makes trigger part 51 be difficult to take place the skew pine phenomenon of taking off when the atress.

The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. The utility model provides an ignition switch structure of gas valve, includes valve main part (1), be equipped with case (2) and terminal (3) of being connected with ignition on valve main part (1), case (2) are connected with torsion bar (4), its characterized in that, the upper end of case (2) is connected with trigger spring (5), trigger spring (5) are including trigger portion (51) and connecting portion (52) that from top to bottom set up, the width of trigger portion (51) is greater than the width of connecting portion (52), be equipped with preforming (6) on torsion bar (4), preforming (6) bulldoze the upper end of trigger portion (51) and make the lower extreme of trigger portion (51) push down to terminal (3) on conducting strip (31).

2. An ignition switch structure of a gas valve according to claim 1, characterized in that: the torsion bar (4) is provided with a positioning bump (41), and the valve core (2) is provided with a positioning groove (21) corresponding to the positioning bump (41).

3. An ignition switch structure of a gas valve according to claim 1, characterized in that: the lower end of the torsion bar (4) is connected with a valve needle (7) for opening the air valve.

4. An ignition switch structure of a gas valve according to claim 1, characterized in that: the torsion bar (4) is provided with a connecting concave part (42) corresponding to the valve needle (7).

5. An ignition switch structure of a gas valve according to claim 4, characterized in that: and a return spring for returning the valve needle (7) is arranged on the valve needle.

6. An ignition switch structure of a gas valve according to any one of claims 1 to 5, characterized in that: the pressing piece (6) is provided with a plurality of limiting blocks (61), and the inner side of the upper end of the trigger part (51) is tightly connected with the limiting blocks (61).