KR100223575B1 - Gas cock - Google Patents

Abstract

(Problem) A mechanism for moving the hammer H striking the piezoelectric element J in conjunction with the rotational movement of the rotational movement shaft 21, and the rotational movement shaft 21 at a predetermined rotational movement angle or higher. If separate mechanisms for regulating rotational movement are provided, the number of parts increases and the space for installing them increases.

(Solution means) The protrusion 6c engaging with the hammer H and the stopper contacting portion 6a were formed in one plate member 6 engaged with the rotary shaft 21 in a stopped state.

Description

Gas cock

The present invention relates to a gas cock that controls the amount of gas supplied to a burner by a rotary motion operation with respect to a rotary motion shaft and simultaneously strikes a piezoelectric element with a hammer to ignite.

Conventionally, as a gas cock of this type, a piezoelectric element and a hammer facing the piezoelectric element are provided in the vicinity of the rotary motion axis, and a plate member having a protrusion engaging with the hammer is attached to the rotary motion axis in a state of being stopped and stopped by the rotary motion axis. During this rotational movement, the hammer moves against the spring force and releases the engagement with the hammer during the rotational movement, hitting the piezoelectric element with the hammer, causing a spark discharge between the spark plug and the burner installed near the burner to ignite. One is known. In this conventional example, a stopper is provided near the rotational movement shaft so that the rotational movement shaft does not rotate more than a predetermined angle, and the rotational movement shaft is brought into contact with the stopper when the rotational movement shaft is rotated by a predetermined angle. A pin-shaped stopper contact portion for restricting the rotational movement so as not to rotate abnormally was attached to the rotational movement shaft separately from the plate member.

In the conventional gas cock, the plate member for operating the piezoelectric element and the stopper contact portion which is brought into contact with the stopper must be separately attached to the rotary shaft, so that the number of parts is increased and the rotary shaft is lengthened, in particular, the front of the mechanism. When designing panels, the design was sometimes limited.

This invention makes it a subject to solve the said problem.

1 is a cross-sectional view showing a configuration of an embodiment of the present invention.

2 is a view showing the relationship between the rotational movement angle and the thermal power

3 is a view showing the shape of the rotary stop plate

4 is a cross-sectional view of IV-IV.

Explanation of symbols for main parts of the drawings

1-Gascock 2-Body

3-plug 4-stopper plate

5-Bracket 6-Plate Member

7-bearing plate 11-handle

21-Rotation axis 51-Stopper piece

52-Stopper Piece

In order to solve the above problems, the present invention, the gas cock to adjust the gas supply amount to the burner by the rotary motion operation on the rotary shaft, a predetermined angle while pressing the rotary shaft in the extinguishing position does not supply gas to the burner When rotating as much as possible, engage the hammer striking the piezoelectric element for ignition and move it against the spring force of the spring, and release the engagement with the hammer just before the rotational axis rotates by a predetermined angle. And a plate member having a protruding portion engaged with the hammer on the rotary motion shaft to move the hammer against the holding force of the spring in a state in which the hammer is stopped with respect to the rotary motion shaft, and the piezoelectric element. Rotate the rotational movement of the rotational shaft by the predetermined angle by abutting the stopper protruding from the bracket for fixing the Portion abutting a stopper fit to regulate in a position characterized in that integrally formed on the plate member.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing.

In FIG. 1, reference numeral 1 denotes a gas cock, and the operation knob 11 is used for the gas flowing in from the inlet 10 with respect to the annular large burner 12 and the small burner 13 provided at the center of the large burner 12. The gas is branched to the ignition pilot burner 14 by adjusting and supplying at a flow rate corresponding to the rotational movement angle of the gas and pressing the crude knob 11. In addition, the hammer H, which will be described later, is operated between the ignition plug 15 and the pilot burner 14 by hitting the piezoelectric element J by the holding force of the spring S by the rotary motion operation of the operation knob 11. It sparks due to a spark discharge.

The operation handle 11 is fixed to one end of the rotary shaft 21, and the engaging pin 22 is embedded at the other end. This engaging pin 22 is engaged with the slit-shaped cutout part 35 formed in the tapered plug 3 provided in the main body 2. As shown in FIG. The notch 35 is deeply cut to allow movement in the direction in which the rotary shaft 21 is pressed. In addition, the connecting rod 31 is freely fixed to the central portion of the plug 3 so as to be brought into contact with the other end of the rotary shaft 21 by a spring 32. An ignition valve 33 having a reduced diameter is installed in the middle of the connecting rod 31, and when the operation knob 11 is pressed, the connecting rod 31 and the connecting rod 31 move in the pushing direction so that the ignition valve 33 is moved. ) Is opened. In addition, when the connecting rod 31 moves in the pushing direction, the electromagnetic safety valve SV is pushed open by the tip of the connecting rod 31.

In addition, when the operation knob 11 is rotated, the plug 3 engaged with the rotary shaft 21 through the engaging pin 22 rotates. The plug 3 is formed with a first open hole 36 and a second open hole 37 connected to the space 34, and for a large burner formed in the main body 2 by the rotational movement angle of the plug 3. As the overlapping degree between the window hole 23 and the small burner window hole 24 is changed, the gas flowing in from the inlet 10 is transferred to the pilot burner 14 through the ignition valve 33 in the space 34 in the plug 3. In addition to branching, the amount of gas supplied to the large burner 12 and the small burner 13 is increased or decreased.

The relationship between the rotational movement angle of the operation knob 11 and the amount of gas supplied to the large burner 12 and the small burner 13, that is, the thermal power, is as shown in FIG. 2 in the case of the present embodiment. The gas stops at the stop position where the gas is not supplied to the large burner 12 and the small burner 13 at 0 °, and the operation knob 11 is pressed at the stop position to branch the gas to the pilot burner 14. Rotate 95 ° to the "full open" position in the leftward direction. In the " fully open " position, the large amount of gas is supplied to the large burner 12 and the small burner 13, and the piezoelectric element is substantially at the same time as the operation knob 11 is rotated to the “completely open” position. (J) is hit and ignition occurs. When the operation knob 11 is turned to the right in the "full open" position, the amount of gas supplied to the large burner 12 and the small burner 13 is sequentially reduced, and the large burner is returned to the "medium fire" position of 55 °. The firepower of the 12 and the small burner 130 is both medium. In addition, if the rotational movement from the "full open" position again to the left direction, while the rotational movement to the "Soburner Senbul" position of 138 degrees, the fire power of the Soburner 13 is maintained as the high fire, and to the large burner 12 The gas supply decreases until it reaches zero. When the rotary motion is moved from the "soburner senbul" position back to the `` soburner weak fire '' position of 175 °, the fire power of the soburner 13, which is burned alone, is adjusted from the senbul to the low fire.

If it is possible to rotate in the "middle fire" position or the "full open" position without pressing the operation knob 11 in the "stop" position, open the ignition valve and the solenoid safety valve by the pressing operation, or the hammer (H). It is not preferable because the engagement is not performed and the gas is ejected from the large burner 12 and the small burner 13. Therefore, the rotation stop plate 4 which is pressed-contacted by the spring 41 provided between the engagement pin 22 with respect to the E ring 2a which was engaged with the rotation shaft 21 was provided. As shown in Fig. 3, the rotary stop plate 4 is in the shape of a disk and rotates the rotary shaft 21 by inserting the rotary shaft 21 into the 'D' shaped engaging hole 40 formed at the center thereof. Movement in the longitudinal direction is free and attached in a stopped state. In addition, the notches 42 and the square holes 43 are formed so that the distance from the center is different. On the other hand, in the bracket 5 which is screwed to the main body 2, the stopper protrusions 5a and 5b inserted in each of the notch 42 and the square hole 43 in the "stop" position are bent and formed. Therefore, even when the operation knob 11 is to be rotated in the left direction from the "stop" position to the "full open" position, the stopper protrusions 5a and 5b are engaged with the notches 42 and the square holes 43, The operation knob 11 was not rotated. When the operation knob 11 is pressed, the rotation stopper plate 4 is pressed by the E-ring 2a, and moves in the pressing direction together with the rotation shaft 21 to stopper protrusions 5a and 5b and the notch 42 and The engagement with the square hole 43 is released, and it becomes a state which can rotate rotation to a "full open" position.

When the ignition operation is executed while the operation knob 11 is pressed, it is preferable to restrict the rotational movement of the operation knob 11 at the "completely open" position. To this end, the E-ring 2b is engaged with the rotary shaft 21 so as to be positioned on the operation handle 11 side with respect to the bracket 5, and the door-shaped bearing plate 7 screwed to the bracket 5 and The plate member 6 which is pressed-contacted to the E ring 2b by the spring 61 provided in between was attached. As shown in FIG. 4, the plate member 6 is provided with the protrusion part 6c, the stopper contact part 6a, and the stop position regulation part 6b. When the operation knob 11 is pressed, the plate member 6 is pressed by the spring 61 to move to the position where the bracket 5 is engaged with the E ring 2b to engage with the hammer H. By rotating the operation knob 11 as it is, the projection 6c is engaged with the hammer (H) to move the hammer (H) against the holding force of the spring (S). On the other hand, the stopper piece 51 is cut off and stands in the bracket 5, and the stopper contact part with the stopper surface 51a of the stopper piece 51 in the "full open" position which rotated the operation knob 11 by 95 degrees. When 6a is in contact, the operation knob 1 cannot be rotated any further. Moreover, the length of the projection part 6c is set so that the projection part 6c which was engaged with the hammer H just before the stopper contact part 6a abuts on the stopper surface 51a, is set, and the operation handle ( The hammer H strikes the piezoelectric element J at substantially the same time as the further rotational movement is regulated in the " fully open " position. At this point in time, gas is branched to the pilot burner 14, and since the maximum amount of gas is supplied to the large burner 12 and the small burner 13, ignition is reliably performed. When the ignition is confirmed, the pressure on the manipulation knob 11 is released. Then, the operation handle 11 returns to its original position by the holding force of the spring 32. The height of the stopper piece 51 is set low so that the plate member 6 in a state which returned to the original position may not contact. Therefore, by returning the operation knob 11 to the original position, the operation knob 11 can be rotated again to the left direction. However, if the rotary motion 175 ° from the "stop" position is necessary to finally regulate the rotary motion at the "slow burner weak fire" position, cut off the second stopper piece 52 and stop the stopper surface at the "slow burner weak fire" position ( The stopper abutting portion 6a abuts against 52a) so that the operation knob 11 is no longer rotated in the left direction. The stopper piece 52 has a height higher than that of the stopper piece 51 so that the stopper contact portion 6a abuts on the stopper surface 52a even when the plate member 6 is returned to its original position. Formed. The operation knob 11 can freely rotate in any of the left and right directions between the "middle fire" position and the "slow burner low light" position, but once it returns to the "stop" position, the cutting stopper 4 of the rotary stop plate 4 And the stopper protrusions 5a and 5b are again engaged with the square hole 43 and the square hole 43 cannot be rotated unless the operation knob 11 is pressed. By the way, when the operation knob 11 is returned to the "stop" position, it is necessary to restrict the operation knob 11 from rotating in the rightward direction than the "stop" position. Therefore, the contact surface 52b was formed in the stopper piece 52 so that the fixed position regulation part 6b formed in the board member 6 may contact in the "stop" position.

By the way, as shown in FIG. 4, the board member 6 formed the two surfaces represented by the surface 62a and the surface 62b in the engagement hole 62 in order to stop rotation about the rotating shaft 21. As shown in FIG. This is stopped by the surface 62a at the time of ignition, and the projection 6c is released from the hammer H while the rotary shaft 21 is rotated to some extent so that the gas is sufficiently supplied to the burners 12 and 13. It is disengaged and strikes the piezoelectric element (J). On the contrary, when returning to the "stopping" position, the projection 6c is not engaged with the hammer H until the gas stops rotating due to rotation of the surface 62b. In addition, when the operation knob 11 is inadvertently pressed between the "full open" position and the "slow burner weak light" position, the plate member 6 is inclined against the stopper piece 51. At this time, the gap between the engaging hole 62 and the rotational movement shaft 21 was set slightly wider to prevent the plate member 6 from being absorbed and damaged by the rotational movement shaft 21.

As is apparent from the above description, the present invention has formed a separate member on the same plate member because the protrusion engaging with the hammer for ignition and the stopper contact portion for regulating the rotational movement of the rotary shaft at a position rotated by a predetermined angle for ignition. Compared with the conventional embodiment formed of the present invention, the number of parts decreases and the space for installing them becomes small.

Claims (1)

A gas cock that regulates the gas supply amount to the burner by the rotary motion operation on the rotary motion axis.The piezoelectric element for ignition when the rotary motion is rotated by a predetermined angle while pressing the rotary motion axis in a fire extinguishing position that does not supply gas to the burner. In striking the hammer hitting the hammer against the spring force and moving it against the spring force and releasing the engagement with the hammer just before the rotational axis rotates by a predetermined angle, the piezoelectric element is hit by the hammer. Protruding of the bracket for fixing the piezoelectric element, while attaching the plate member for moving the hammer against the spring force of the spring having a projection to be engaged with the hammer on the rotary shaft, while rotating relative to the rotary shaft; And a stopper abutting portion integrally formed on the plate member to abut the formed stopper to regulate a rotational movement of the rotational shaft at a position rotated by the predetermined angle.

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