KR100376819B1 - A gas cock - Google Patents

Abstract

When the rotation operation shaft 11 is rotated to the ignition position for operating the ignition switch 6, and the rotation operation shaft 11 is pushed further to operate the rotation operation, when the ignition switch 6 is operated again, The rod 15, which is ON again or opens the safety valve, is pushed in.

When the ignition is completed, the cam plate 2 is moved upward along the rotational operation shaft 11 so as not to contact the pad portion 33 of the first lever member.

Description

A gas cock

The present invention relates to a gas scotch that rotates a rotating operation shaft to control a fire power by adjusting an amount of gas supplied to a gas burner. It relates to a gas scotch which rotates and operates.

As a conventional gas type of this type, for example, according to Japanese Patent Application Laid-Open No. Hei 4-24310, the rotation operation shaft is rotated to the ignition position set to 0 ° and the ignition position set to 115 ° to the gas burner. It is known to ignite and return the rotational operation shaft to the complete valve opening position, which is 95 degrees, and then to adjust the thermal power between the weakening position set at the 150 degrees position and the fire position set at the 45 degrees position. A gas valve described in this publication has a built-in safety valve that is held and adsorbed by the thermoelectric power of a thermocouple heated by a flame of a burner. Therefore, in the ignition position, the rod reciprocating along the axial direction of the rotational operation shaft is moved in conjunction with the rotational operation of the rotational operation shaft, and the safety valve is forcibly held at the rod until the state of flame is stable. In the case of gas stalks that can be rotated further beyond the ignition position, ignition of the burner in the ignition position releases the turning force on the rotary control shaft so that the rod does not forcibly close the safety valve during further rotation operations. The lower surface is configured to space the rod away from the safety valve.

In the gas scope described in the above publication, the rod is disposed along the axis of the rotational operation shaft, and the safety valve is mounted so as to be positioned on the axis of the rotational operation shaft. In this type of gas scope, since the length of the rotational operation shaft in the axial direction becomes longer, there is a gaseous structure configured to reciprocate the rod in a direction perpendicular to the axis of the rotational operation shaft. It has a cam that rotates together with the pivoting shaft, and a pivot pivotably pivoted about at the center, and when the pivoting shaft rotates to the ignition position, the cam presses one end of the lever to release the lever. It swings and is comprised so that a rod may be pushed in at the other end of a lever. For this reason, the mechanism described in the above publication cannot be applied to a gas scotch having a rod that can reciprocate freely in a direction perpendicular to the axis of such a rotation operation shaft.

Accordingly, the present invention has been made in view of the above-described problems, and has a problem to provide a gas stalk which can be rotated at the time of pushing and operating in a gas scoke having a rod reciprocating in a direction perpendicular to the axis of the rotational operation shaft. Shall be.

1 is a cross-sectional view showing a configuration of one embodiment of the present invention;

2 is a view showing a rotation range of a rotation operation axis;

3 is a perspective view showing the shape of the cam plate,

4 is a view showing a cam plate in an ignitable state;

5 is a view showing a cam plate in a non-ignition state;

6 is a plan view at the valve closing position;

7 is a plan view at an ignition position;

8 is a plan view at the time of push rotation operation,

9 is a view showing another rotation range of the rotation operation axis.

Description of the main parts of the drawing

1 gascoque

2 campan

3 First lever member

4 Second lever member

5 torsion spring

6 Ignition Switch

11 rotation operation axis

15 load

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention provides the cam board which rotates with the rotation control shaft for thermal control, the lever part pressed and rocked by the cam plate when the rotation operation shaft was rotated from the valve closing position to the ignition position, and the lever part was rocked. A gas scotch having a rod pushed in a direction perpendicular to the axis of the rotational operation shaft, the gas scouring forcibly closing the safety valve at the tip of the rod, protruding outward in the radial direction of the cam plate, and intermediate position of the thermal control range of the rotational operation shaft. A cam portion which swings the lever portion in the ignition; An elastic spring which allows the cam plate to freely reciprocate between an ignitable state that engages the lever portion and an unignition state that does not engage the lever portion along the rotation axis of the rotation operation shaft, with the cam plate interposed therebetween; A pin movably received in the longitudinal groove recessed along the reciprocating direction in the inner wall of the cam plate and coupled to the rotational operation shaft; And protruding to act with the pin 12 in the longitudinal groove 23 of the cam plate 2 to maintain the cam plate 2 in an ignitable state while the rotating operation shaft rotates from the valve closing position to the ignition position. And a cam plate moving mechanism including an inclined surface for moving the cam plate to a non-ignition state by releasing the rotational operation force.

When the rotation operation shaft is rotated from the valve closing position to the ignition position, since the cam plate is in the ignition state, the cam plate presses the lever portion, the lever portion swings and the rod is pushed in, and the safety valve is closed. When the ignition operation is completed, since the rotation operation force acting on the rotation operation axis is released, the cam plate moves to the non-ignition state by the movement of the cam plate moving mechanism. Then, the cam plate is not coupled to the lever portion, so that the rod is not pushed back during the thermal power control even when the push rotation operation is performed.

By the way, when the lever part is constituted by one lever member, the rotational operation force is transmitted from the lever part to the safety valve as it is through the rod. If the rotational operation force is large, the tip of the rod presses the safety valve strongly. If the cam plate suddenly moves to the non-ignition state in this state, the force acting on the safety valve from the rod is released rapidly, which may cause the safety valve to close due to spring back or impact. In this case, the lever part includes a first lever member that is in contact with the cam plate and a second lever member that is in contact with the rod, and when the rod is pushed in, a force of a predetermined magnitude or more is applied from the first lever member to the second lever member. It is preferable to have a restricting mechanism including a torsion spring for restricting this. With such a configuration, even if a large force is applied from the cam plate to the first lever member, no force greater than a predetermined magnitude is applied from the first lever member to the second lever member by the restricting mechanism.

Embodiment of the invention

Referring to Figure 1, 1 is a gas scotch, by rotating the rotary operation shaft 11, the amount of gas sent to the burner outside the drawing can be controlled to adjust the thermal power. The horizontal pin 12 is coupled to the rotation operation shaft 11, and the cam plate 2 is rotated by the pin 12. In the vicinity of the cam plate 2, the first lever member 3 and the second lever member 4 are attached to the substrate 13 so as to swing freely. The first lever member 3 is in contact with the upper surface of the substrate 13, the second lever member 4 is disposed in contact with the lower surface of the substrate 13, and is pivoted on the substrate 13 by the axis 14. It is attached freely. In addition, the torsion spring 5 is attached to the spindle 14. The long arm 51 of this torsion spring 5 is coupled to the vertical projection 31 of the first lever member 3, and the short arm 52 is connected to the vertical projection 41 of the second lever member 4. Are combined. Accordingly, the vertical projection 41 of the second lever member 4 is caused by the elastic force of the torsion spring 5 to have the elastic force of a predetermined size to the tail end 34 of the first lever member 3. Has a structure in contact. When the cam plate 2 is rotated and the pad portion 33 of the first lever member 3 is pressed by the cam plate 2, the first lever member 3 swings. The second lever member 4 is linked to the first lever member 3 by the elastic force of the torsion spring 5 so that the pad part 42 of the second lever member 4 pushes the rod 15. The rod 15 is held so that it can freely move forward and backward in a direction perpendicular to the rotation axis of the rotation operation shaft 11, and when the rod 15 is pushed into the gas scouring 1, the gas scouring 1 The electronic safety valve (not shown) built in the) is forcibly closed. 6 is an ignition switch for operating an ignition spark.

Referring to Fig. 2, when the pivoting operation shaft 11 is rotated at a time from the valve closing position (closed) of 0 ° to the ignition position (ignition) set at the 115 ° position, the pivoting operation shaft 11 is moved beyond the ignition position. At the same time as the rotation is prohibited, the ignition switch 6 is turned on to ignite the gas burner (not shown). When the ignition is completed, by releasing the rotating operating shaft 11, the rotating operating shaft 11 automatically returns once to the Great Buddha position (completely open) set to the 95 ° position. After that, the rotating operation shaft 11 can be rotated beyond the ignition position to the weakened position set at the 150 ° position, and the fire power can be adjusted freely from the weakened position to the fired position set at the 45 ° position. Can be. After the cooking is completed, the rotation operation shaft 11 is returned to the valve closing position.

Referring to FIG. 3, the cam plate 2 is formed with inclined surfaces 21a and 21b respectively corresponding to the projections 10a and 10b of the protrusions 10 that cover the cam plate 2 from above. Moreover, the cam part 22 which tensions outward is formed in the vicinity of the inclined surface 21b, and this cam part 22 abuts on the pad part 33 of the 1st lever member 3. As shown in FIG. In addition, a pair of longitudinal grooves 23 into which the pin 12 is inserted is formed. In the longitudinal groove 23, an inclined surface 24 is formed in which the pin 12 abuts when the rotation operation shaft 11 is rotated from the valve closing position to the ignition position. In addition, a reference section 25 for positioning at the valve closing position with the cam portion 22 is formed, and a reference section 26 for positioning at the ignition position and the weakening position.

4 and 6, in the valve closing position, the projections 10a and 10b of the projection plate 10 abut on the upper surface of the cam plate 2 together. Therefore, the cam plate 2 does not move upward even by the elastic force of the spring 2a which shot the cam plate 2 upward. When the rotation operation shaft 11 is rotated toward the ignition position, the cam plate 2 rotates, and both inclined surfaces 21a and 21b move together below the projections 10a and 10b. Then, the lower ends of the projections 10a and 10b are separated from the upper surface of the cam plate 20, but the pins 12 in the longitudinal grooves 23 are strongly pressed against the inclined surfaces 24 so that the pins 12 are coupled to the inclined surfaces 24. It is. For this reason, the cam plate 2 continues to rotate without being pushed up by the spring 2a. When the pivoting operation shaft 11 is rotated to the ignition position, the reference cross section 26 is brought into contact with the stopper portion 81 of the stopper ring 8, and the rod 15 is pushed in at the same time. The safety valve is forcibly closed and the ignition switch 6 is turned on. At this time, when the rod 15 is pushed to the position where the safety valve is fully opened, the safety valve is obstructed and it is not pushed further. However, in some cases, the rotational operation shaft 11 can be rotated again in the direction of swinging the first lever member 3 even when the rod 15 is no longer pushed due to an assembly error or a machining error. . Since the pad portion 42 of the second lever member 4 is in contact with the rod 15, when the rod 15 is no longer pushed in, the second lever member 4 can no longer swing. do. In addition, when the first lever member 3 is rocked, as shown in FIG. 7, the elastic force of the torsion spring 5 is overcome so that only the first lever member 3 swings and the vertical protrusion 41 is the end portion. Spaced apart from (34). When the burner is confirmed to be ignited and released from the pivoting shaft 11, as shown in FIG. 5, the pivoting shaft 11 returns to the full opening while the pin 12 is separated from the inclined surface 24. . At this time, since the cam plate 2 is released from engagement with the pin 12, the cam plate 2 is pushed upward by the elastic force of the spring 2a, and the cam portion 22 is the pad portion 33 of the first lever member 3. It is in a non-ignition state that does not touch the). In addition, since the second lever member 4 is pushed back by the rod 15 and no force beyond the stress limited by the torsion spring 5 acts on the rod 15, the operating force is urgently applied to the rotational operation shaft 11. Even if it is released, the torque at the time of release does not become large, and the problem that a safety valve is closed by the torque at the time of release can be avoided. Next, as shown in FIG. 5, since the cam portion 22 does not contact the pad portion 33 of the first lever member 3, the rotation operation shaft 11 is freely positioned between the weakened position and the unfired position. The rotational operation can be performed in such a way that the ignition switch 6 is not turned on even when the rotational operation shaft 11 passes through the ignition position, and the rod 15 is not pushed in. And when returning the rotation operation shaft 11 from a fire-extinguishing position to a valve closing position, both projections 10a and 10b of the projection board 10 press the inclined surface 21a and 21b, and the cam plate 2 can be initially ignited. To the position.

In the embodiment, however, the ignition is performed in the fully open state, and the ignition operation is further pushed after the ignition, thereby reducing the thermal power to the low light. For example, as shown in FIG. You may comprise so that operation may become a fully open state. In recent years, the use of high-calorie gas burners with a large maximum combustion amount is increasing. However, high-calorie gas burners can ignite even in a medium fire state. Because the user is surprised to come in

As can be seen from the above description, the present invention can also be operated by pushing further beyond the ignition position even in a gas scope having a rod which reciprocates in a direction perpendicular to the axis of the rotational operation axis. In addition, even after ignition is completed, even if you release your hand quickly from the rotation control shaft, the problem that the safety valve is closed at the torque can be solved because a predetermined or more force does not act on the rod forcibly opening the safety valve.

Claims (2)

The cam plate 2 which rotates together with the rotation control shaft 11 for thermal power control, and the lever part 3 which presses and swings on the cam plate 2 when the rotation operation shaft 11 is rotated from the valve closing position to the ignition position. 4) and a rod 15 that is pushed in a direction perpendicular to the axis of the pivoting operation shaft 11 by swinging the lever portions 3 and 4, and is secured at the tip of the rod 15. In the gas scouring forcibly closing the valve, A cam portion 22 protruding outward in the radial direction of the cam plate 2 to rock and ignite the lever portions 3 and 4 at an intermediate position of the thermal control range of the pivoting operation shaft 11; Ignition capable of engaging the cam plate 2 with the lever portions 3 and 4 along the axis of rotation of the pivot operation shaft 11 opposite the pivot operation shaft 11 with the cam plate 2 therebetween. An elastic spring (2a) capable of freely reciprocating between a state and an unignition state not coupled to the lever portions (3, 4); A pin 12 movably received in the longitudinal groove 23 recessed along the reciprocating direction in the inner wall surface of the cam plate 2 and coupled to the rotational operation shaft 11; And protrudes to act with the pin 12 in the longitudinal groove 23 of the cam plate 2 so that the cam plate 2 is in the ignitable state when the pivoting operation shaft 11 rotates from the valve closing position to the ignition position. And a cam plate moving mechanism including an inclined surface 24 for moving the cam plate 2 to the non-ignition state by releasing the rotating operation force with respect to the rotating operation shaft 11 at the same time. . 2. The lever part (3) and (4) according to claim 1, further comprising a first lever member (3) in contact with the cam plate (2) and a second lever member (4) in contact with the rod (15). And a limiting mechanism including a torsion spring 5 for restricting the force of a predetermined size or more from the first lever member 3 to the second lever member 4 when the rod 15 is pushed in. Gascoque, characterized in that.