JP2014092360A - Mechanical timer device of gas cooking stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe protection mechanism capable continuing an operation even at a high temperature due to no influence from high temperature at a gas cooking stove.SOLUTION: A mechanical timer device 10 of gas cooking stove has a normal-open valve 18, a valve rod 26 in the normal-open valve and an upper pendulum rod 32 at the upper part of the normal-open valve, the lower part of the upper pendulum rod is provided with an upper stopper 36. When the upper stopper is moved, the upper pendulum rod swings down to push the valve rod to close the normal-open valve. The lower part of the upper pendulum rod has further a lower pendulum rod 38 and an integral pushing rod 40 on it. The upper part of the lower pendulum rod is provided with a lower stopper 44. When the lower stopper is moved, the pushing rod moves the upper pendulum rod and when the upper pendulum rod moves away from the valve rod, the normal-open valve is opened. An operating cam 46 is installed between the upper pendulum rod and the lower pendulum rod to move the lower pendulum rod and further a rotating shaft 16 is also fixed with a stopper operating cam and it is rotated.

Description

  The present invention relates to a gas stove timer device that can be closed by setting a time, which is specifically referred to as a gas stove mechanical timer device.

  Currently known gas stoves control the opening and closing of the solenoid valve of the gas supply pipe by the electromotive force generated by a thermocouple heated by a flame, and close the solenoid valve when the flame is not burning. The safety mechanism of the gas stove is made to function by preventing leakage.

  As shown in FIG. 1, the gas stove electronic device (100) has a solenoid valve (102), controls gas by the solenoid valve, and the solenoid valve (102) is connected to the cock (104). The gas flow rate can be controlled. The cock (104) is connected to the cooking port (106), gas passes through the cooking port (106), ignites the cooking port (106), and burns the gas. A thermocouple (108) is provided on the side of the cooker (106), the thermocouple (108) is electrically connected to the solenoid valve (102), and when the flame of the cooker (106) disappears, the cooker (106 ), The thermocouple (108) loses power, and then the solenoid valve (102) is closed to prevent the gas from flowing. However, when the electronic device is used, if the gas stove is too hot, the electronic components are liable to fail, so the solenoid valve (102) cannot be operated and the safety mechanism does not function.

  In view of this point, the present invention provides an improvement of a mechanical timer device of a gas stove in order to effectively solve a known problem with respect to the above-described problem.

  The main problem of the present invention is that the gas stove mechanical timer device is not affected by the high temperature of the gas stove by using the mechanical timer device, and at the high temperature of the gas stove like the electronic timer device, There is little possibility of causing a failure, and the present invention can guarantee safety in use.

  Another object of the present invention is to provide a gas stove mechanical timer device having a simple structure, a low production cost, a failure to break down, and an increase in production efficiency.

  In order to achieve the above-mentioned problems, the gas stove mechanical timer device provided in the present invention has a normally open valve, and has a passage provided therein, which is connected to the normally open valve inlet and the normally open valve outlet. A normally closed valve outlet is closed, and an upper pendulum bar is provided at the top of the normally open valve, one end of which is fixed to the case, and a first spring is attached to the top of the other end, and An upper stopper is provided at the lower part of the upper pendulum bar. When the upper stopper moves, the upper pendulum bar swings downward by the force of the first spring, pushes the valve bar to close the normally open valve outlet, A lower pendulum bar is provided at the lower part, an integrated push bar is provided at the upper part, one end is fixed to the case, a second spring is attached to the lower part at the other end, and a lower stopper is provided at the upper part of the lower pendulum bar. And push the lower pendulum bar by moving the lower stopper. The rod swings upward, moves the upper pendulum rod, moves the upper pendulum rod away from the valve stem, opens the normally open valve and simultaneously pushes the upper pendulum rod over the upper stopper. Installed between the rods, move the lower pendulum rod to the bottom of the lower stopper, and the timer is provided with a timer rotation shaft in it, and an operation cam and a stopper operation cam are attached to the timer rotation shaft and rotated. It is characterized by that.

  According to the present invention, by using a mechanical timer device, it is not affected by the high temperature of the gas stove, and it is less likely to cause a failure when the gas stove is at a high temperature like an electronic timer device. Can guarantee the safety. Still further, the structure is simple, the production cost is low, it is difficult to break down, and the production efficiency can be increased.

It is a figure which shows a known gas stove electronic device. It is an external view of this invention. It is a figure explaining another Example of this invention. It is a figure explaining the structure of this invention. It is a figure explaining the structure action | operation of this invention. It is a figure explaining the structure action | operation of this invention. It is a figure explaining the structure action | operation of this invention. It is a three-dimensional view of a cam used in the present invention. It is a figure explaining 2nd Example in the stopper of this invention. It is a figure explaining 2nd Example in the stopper of this invention. It is a figure explaining 3rd Example in the stopper of this invention. It is a figure explaining 3rd Example in the stopper of this invention. It is a figure explaining the action | operation of 3rd Example in the stopper of this invention. It is a figure explaining the action | operation of 3rd Example in the stopper of this invention. It is a figure explaining the cam used by this invention. It is a horizontal sectional view of a cam used in the present invention. It is a vertical sectional view of the third embodiment of the stopper of the present invention. It is a figure explaining the Example of this invention.

  Details of specific embodiments will be described below to further understand the objects, technical contents, features, and effects achieved by the present invention.

  Regarding the gas stove mechanical timer device (10) of the present invention, referring to FIG. 2 and FIG. 3 at the same time, the gas stove mechanical timer device (10) of the present invention combines the solenoid valve (48) and the cock (58). By using it, a gas stove mechanical timer device (10) can be set in the gas stove to install a device that shuts off the gas. As shown in the figure, the gas stove mechanical timer device (10) of the present invention is connected to a solenoid valve (48), and the solenoid valve (48) is provided with a solenoid valve outlet (50) and a solenoid valve inlet (52). The solenoid valve inlet (52) therein is connected to the normally open valve outlet (24) of the normally open valve (18) in the gas stove mechanical timer device (10) of the present invention, and is connected to the solenoid valve (48). Installs a thermocouple (54) on the side of the cooker (56), and the thermocouple (54) has a function of sensing the temperature of the cooker (56). 48) is closed, the solenoid valve outlet (50) is connected to the cock inlet (60) of the cock (58), the cock outlet (62) is connected to the cooking port (56), and the gas is connected to the cooking port (56). I can't pass.

  Among them, the structure of the gas stove mechanical timer device (10) of the present invention presented above will be described with reference to FIG. 2 and FIG. The gas stove mechanical timer device (10) of the present invention is provided with a case (12) behind the timer (14), and the timer (14) is provided with a timer rotating shaft (16) penetrating the case (12). The normally open valve (18) is covered and accommodated in the case (12), and a passage (20) is provided inside the normally open valve (18) to provide a normally open valve inlet (22) and a normally open valve outlet (24). ), Of which the normally open valve inlet (22) and the normally open valve outlet (24) are passed through the outside of the case (12), and the normally open valve (18) has a valve rod (26) and a valve rod. (26) A retaining ring (28) is provided on the top, and a third tension spring (30) wound around the valve stem (26) is attached to the bottom of the retaining ring (28), and the third tension spring (30) is attached. Since the retaining ring is supported using the force of the valve, the valve stem (26) does not close the normally open valve outlet (24), and the normally open valve (18) is opened. It is possible to hold the state. An upper pendulum bar (32) is provided on the upper part of the normally open valve (18) and accommodated in the case (12). One end of the upper pendulum bar (32) is fixed in the case (12), and the other end A first spring (34) is attached to the upper part, and an upper stopper (36) is provided at the lower part of the upper pendulum bar (32) to be accommodated in the case (12), and the upper stopper (36) moves to move the upper pendulum. The rod (32) swings downward by the force of the first tension spring (34) and pushes the valve rod (26) to close the normally open valve outlet (24). A lower pendulum bar (38) is further provided in the lower part of the upper pendulum bar (32) and accommodated in the case (12), and an integrated push bar (40) is provided on the lower pendulum bar (38), One end thereof is fixed in the case (12), a second spring (42) is attached to the lower part of the other end, and a lower stopper (44) is provided on the upper part of the lower pendulum bar (38) to provide an inside of the case (12). When the lower stopper (44) moves, the push rod (40) of the lower pendulum bar (38) is swung up by the force of the second spring (42), and the upper pendulum bar (32) is moved to the valve rod (26). ), The normally open valve (18) is opened, and the upper pendulum bar (32) is pushed over the upper stopper (36). The operating cam (46) is mounted on the timer rotating shaft (16) of the timer (14) installed between the upper pendulum bar (32) and the lower pendulum bar (38), and is accommodated in the case (12). When rotating, move the lower pendulum bar (38) and push the lower pendulum bar (38) to below the lower stopper (44). Among them, the operating cam (46) has a back stop cam (461) at the end thereof, and after swinging the back stop cam (461), it is returned to its original position by a return spring (462).

  Following the description of the structure of the present invention, the operation of the present invention will be described. 2, 3, and 4, [1] When the cooking hole (56) is not ignited, the normally open valve (18) is normally open, and at this time, the gas stove machine of the present invention The internal state of the timer device (10) is as shown in FIG. 4, and the upper pendulum rod (32) is blocked by the upper stopper (36), and the valve rod (26) of the normally open valve (18) can be pushed. The normally open valve (18) can remain open and the lower pendulum bar (38) is not engaged with the lower stopper (44). [2] Since the solenoid valve (48) is not ignited by the flame of the cooking mouth (56), the thermocouple (54) does not sense temperature, so the solenoid valve (48) remains closed and safe. is there. [3] Next, when the flame of the cooker (56) is ignited, the thermocouple (54) senses heat and activates the electromagnetic valve (48), so that the gas is electromagnetic from the normally open valve (18). Through the valve (48) and finally through the cock (58), the cooker (56) burns the flame with gas. [4] After the cooking mouth (56) is ignited, the fire extinguishing time can be set. Referring to FIG. 5a, the operation of the present invention when setting the timer (14) will be described. When setting the rotation of the timer (14), the lower pendulum is not originally engaged with the lower stopper (44). When the rod (38) is pushed down by the operating cam (46) and engaged under the lower stopper (44), and the timer rotating shaft (16) starts rotating, the operating cam on the timer rotating shaft (16) (46) and the stopper operating cams (74, 74 ') (see the detailed structure and operating method of the stopper operating cams 74, 74' in FIG. 11 and the detailed description to be described later) are continuously rotated to start the timer. . [5] Next, referring to FIG. 5b, when the set time of the timer (14) starts, the timer rotating shaft (16) rotates and the operating cam (46) rotates, the backstop cam (461) When the present invention is carried out, the back stop cam (461) is further swayed in one direction in order to prevent excessive friction from occurring on the lower pendulum bar (38) and the rotation to be smooth or jammed. Using the characteristics, the back stop cam (461) rubs the lower pendulum bar (38) at the same time, and swings the operation cam (46) to the position where no friction occurs with the lower pendulum bar (38). The back stop cam (461) is returned to the original position by the swinging and the elastic restoring force of the return spring (462), and the operation of the operating cam (46) is further smoothed as a whole.

  Further, when the stopper operating cam (74) attached to the timer rotating shaft (16) rotates to move the upper stopper (36), the upper pendulum bar (32) is lowered by the elasticity of the first spring (34). Since the valve rod (26) of the normally open valve (18) is pushed in the direction to close the normally open valve (18), the flame will naturally disappear. At this time, since the temperature of the cooking hole (56) is lowered, the electric power of the thermocouple (54) is lowered and the electromagnetic valve (48) is closed. [6] Next, referring to FIG. 5 c, after closing the solenoid valve (48), gas cannot pass to the cooking port (56), so there is no risk of gas leakage and there is a risk of doubting safety. There is no. At this time, the stopper operating cam (74) attached to the timer rotating shaft (16) is continuously rotated to move the lower stopper (44), whereby the lower pendulum bar (38) is moved to the second spring (42). The push rod (40) moves the upper pendulum rod (32), and the upper pendulum rod (32) moves away from the valve stem (26) and engages on the original upper stopper (36). Combined to open the normally open valve outlet (24). Among them, the elasticity of the second spring (42) must be greater than the elasticity of the first spring (34), so that the second spring (42) can move the first spring (34), and the upper pendulum The rod (32) can be engaged on the upper stopper (36).

  Next, the content of parts of the upper stopper (36) and the lower stopper (44) and the operation method thereof will be described. For the upper stopper (36) and the lower stopper (44), refer to FIGS. 4, 7a, 7b and 6, and the upper stopper (36) and the lower stopper (44) are the same type of parts. Only the parts of the stopper (36) will be described. The upper stopper (36) is attached to the second operating spring plate (80), and the second operating spring plate (80) overlaps with the second fixed plate (82), and the upper stopper (36) therein is the second operating spring. It is attached to the plate (80) and fixed to the second operating spring plate (80). The upper stopper (36) passes through the second perforation (86) of the second fixed plate (82) to prevent the upper pendulum bar (32), and the stopper operating cam (74) is connected to the timer rotating shaft (16). In addition, a gap is left between the stopper operating cam (74) and the timer rotating shaft (16), and the second tension spring (76) is wound around the timer rotating shaft (16), and one end of the second tension spring (76) is wound. Is attached to the timer rotating shaft (16), and the other end is connected to the stopper operating cam (74). Since the stopper operating cam (74) is the same cam as shown in FIG. 6, when the stopper operating cam (74) is rotated clockwise, the first slope (78a) is the second operating spring plate (80). At this time, by leaving a gap between the stopper operating cam (74) and the timer rotating shaft (16), the stopper operating cam (74) is inclined to the side, and the tension of the second tension spring (76). Thus, the position of the stopper operating cam (74) can be suppressed so as not to be excessively shifted. When the stopper operating cam (74) rotates counterclockwise, as shown in FIG. 7b, the second slope (78b) on the stopper operating cam (74) is connected to the second operating spring plate (80) and the second fixing plate ( 82), the second operating spring plate (80) is pushed open, and the upper stopper (36) is separated from the upper pendulum bar (32). At this time, the upper pendulum bar (32) is moved to the first spring (32). The valve rod (26) is pushed back by the elasticity of 34) and the normally open valve (18) is closed. In order to install the proposed application by modularization, the stopper operating mechanism (110) can be formed by modularizing the components in FIGS. 7a and 7b described above.

  Next, referring to the third embodiment of the upper stopper (36) and the lower stopper (44) in FIGS. 4, 8a and 8b, the upper stopper (36) and the lower stopper (44) Therefore, only the parts of the upper stopper (36) will be described. In the third embodiment, a stopper case (90) is provided on the third fixing plate (88), and an upper stopper (36) is attached in the stopper case (90), of which the first tension spring is provided in the stopper case (90). (94) can be provided and wound around the upper stopper (36) to support the support wheel (64) on the upper stopper (36), and the upper stopper (36) can be pushed open. The upper pendulum bar (32) is blocked by penetrating the case (90), the other end of the upper stopper (36) is connected to the lever (98), and the blocking spring (96) is placed outside the stopper case (90). To prevent the protrusion (78) of the stopper operating cam (74) from being displaced due to an excessively large angle of deviation of the lever (98). Cam (74) is coupled to the timer rotary shaft (16). As shown in FIG. 8b, the stopper operating cam (74) moves the lever (98) when the stopper operating cam (74) rotates counterclockwise, and the lever (98) ) Causes the upper stopper (36) to move the upper pendulum bar (32). At this time, the upper pendulum bar (32) rebounds due to the elasticity of the first spring (34) and pushes the valve bar (26) to close the normally open valve (18). In order to install the proposed application by modularization, the stopper operating mechanism (110) can be formed by modularizing each component in the above-described FIGS. 8a and 8b.

  Next, the operation method of the stopper operating cam (74) and the lever (98) will be described in detail. As shown in FIGS. 8a and 9a, in this embodiment, when the stopper operating cam (74) rotates clockwise, the lever (98) is initially positioned in the middle of the first slope (78a) and the stopper operating cam ( 74) is rotating clockwise, the lever (98) moves to the left in accordance with the slope of the first slope (78a). When the stopper operating cam (74) rotates counterclockwise, refer to FIG. 9b. Since the lever (98) is positioned in the middle of the second slope (78b), the stopper operating cam (74) rotates counterclockwise. , The lever (98) moves to the right according to the inclination of the second slope (78b), the upper stopper (36) is pulled in, and the upper pendulum bar (32) is moved. The rod (32) rebounds due to the elasticity of the first spring (34) and pushes the valve rod (26) to close the normally open valve (18).

  Referring to FIGS. 9a, 9b, 10a and 10b, the above-described stopper operating cam (74) is shown in FIG. 10b, except that the stopper operating cam (74) is stopper operated. In order to explain the operation of the first slope (78a), the second slope (78b) and the lever (98) of the cam (74) in detail, the first slope (78a) and the second slope (78b) are displayed. It is not an actual horizontal sectional view.

  Among them, the stopper operating cams (74, 74 ') and the operating cam (46) of the upper stopper (36) and the lower stopper (44) are connected to the timer rotating shaft (16) of the timer (14) as shown in FIG. In series connection, when the timer (14) is started and the timer rotating shaft (16) rotates, the operating cam (46) and the stopper operating cam (74, 74 ') are rotated, and the operating cam (46) is moved back to the original position. Simultaneously with returning to the position, the stopper operating cam (74, 74 ') can move the upper stopper (36) and the lower stopper (44) to drive the operation of the present invention.

  Therefore, the present invention is as shown in FIG. 12 in addition to that shown in FIG. 3, and the gas stove mechanical timer device (10) is installed between the solenoid valve (48) and the cock (58), and the three are coupled together. Shall be allowed to.

  Accordingly, the mechanical gas stove timer device of the present invention is not affected by the high temperature of the gas stove by using the mechanical timer device, and causes a failure when the gas stove is at a high temperature like the electronic timer device. Since the possibility is reduced, the present invention can ensure safety in use, and the structure is simple, the manufacturing cost is low, and the production efficiency is high.

  The foregoing description is only illustrative of the relatively good embodiments of the invention and is not intended to limit the actual scope of the invention. Accordingly, all equivalent changes or modifications made in the features and gist described in the application scope of the present invention shall be included in the application scope of the present invention.

10 ... Gas stove mechanical timer device
12 ... Case 14 ... Timer
16 ...... Timer rotating shaft 18 ...... Normally open valve 20 ...... Passage 22 ...... Normally open valve inlet 24 ...... Normally open valve outlet 26 ...... · Valve stem 28 · · · Retaining ring 30 · · · Third tension spring 32 · · · Pendulum rod 34 · · · First spring 36 · · · Upper stopper 38 ··· ... Pendulum bar 40 ... Push bar 42 ... Second spring 44 ... Lower stopper 46 ... Operating cam 48 ... Solenoid valve 461 ... · · · Backstop cam 462 · · · return spring 50 · · · solenoid valve outlet 52 · · · solenoid valve inlet 54 · · · thermocouple 56 · · · cooker 58 · · · ..Cock 60 ... Cock inlet 62 ... Cock outlet 64 ... Support wheels 74, 74 '... Stopper operating cam
76... Second tension spring 78... Projection 78 a... First slope 78 b... Second slope 80. 2nd fixing plate 86 2nd perforation 88 3rd fixing plate 90 stopper case 94 1st tension spring 96 ... blocking spring 98 ... lever 100 ... gas stove electronic device 102 ... solenoid valve 104 ... cock 106 ... cooker 108 ... thermocouple 110 ... ... Stopper operation mechanism

Claims (8)

The normally open valve has a passage inside thereof, is connected to a normally open valve inlet and a normally open valve outlet, and has a valve rod on the normally open valve to close the normally open valve outlet,
The upper pendulum bar is installed at the upper part of the normally open valve, one end of the upper pendulum bar is fixed to the case, a first spring is attached to the upper part of the other end, and an upper stopper is provided at the lower part of the upper pendulum bar. Provided, the upper pendulum bar swings downward by the force of the first spring by moving the upper stopper, pushes the valve bar on the normally open valve, closes the normally open valve outlet,
The lower pendulum bar is installed at the lower part of the upper pendulum bar, one end of the lower pendulum bar is fixed to the case, a second spring is attached to the lower part of the other end, and an integrated push bar is attached to the lower pendulum bar. Provided, a lower stopper is provided on the upper part of the lower pendulum bar, and the lower stopper moves, so that the lower pendulum bar swings up by the force of the second spring, the push bar moves the upper pendulum bar, Opening the normally open valve outlet by moving the upper pendulum rod away from the valve stem, and simultaneously pushing the upper pendulum rod onto the upper stopper;
An operating cam is installed between the upper pendulum bar and the lower pendulum bar, and moves the lower pendulum bar, and a timer is provided with a timer rotating shaft, and the operating cam and the stopper operating cam are attached to the timer rotating shaft, A gas stove mechanical timer device characterized in that the operating cam and the stopper operating cam are rotated to push the lower pendulum rod to the bottom of the lower stopper. The solenoid valve has a solenoid valve outlet and a solenoid valve inlet, the solenoid valve inlet is connected to the normally open valve outlet, and the solenoid valve is provided with a thermocouple on the side of the cooking port, and the cock is a cock inlet And a cock outlet is provided, the cock inlet is connected to the solenoid valve outlet, the cock outlet is connected to the cooking port, and gas is passed through the cooking port. Gas stove mechanical timer device. The solenoid valve is provided with a solenoid valve outlet and a solenoid valve inlet, the solenoid valve outlet is connected to the normally open valve inlet, and the solenoid valve is further provided with a thermocouple on the cooker side, and the cock is a cock An outlet and a cock inlet are provided, the cock inlet is connected to the normally open valve outlet, the cock outlet is connected to the cooking port, and gas is passed through the cooking port. The gas stove mechanical timer device described in 1. The upper and lower stoppers are respectively fixed to the second operating spring plate, the second fixing plate and the second operating spring plate are overlapped, a second perforation is provided in the second fixing plate, and the upper and lower stoppers are connected to the second operating spring plate. The upper and lower pendulum rods are blocked by penetrating through the perforation, and the stopper operating cam is attached to the timer rotating shaft, the stopper operating cam is rotated to push open the second operating spring plate, and the upper and lower The gas stove mechanical timer device according to claim 1, wherein the stopper is moved away from the upper and lower pendulum bars and the upper and lower pendulum bars are moved. The upper and lower stoppers are respectively attached to the stopper case, the stopper case is installed on the third fixing plate, and is provided in the first tension spring wound on the upper and lower stoppers in the stopper case. A stopper penetrates the stopper case, blocks the upper and lower pendulum bars, and one end of the lever is connected to the upper and lower stoppers. The stopper operating cam is connected in series to the timer rotating shaft, and the stopper 2. The gas stove mechanical timer device according to claim 1, wherein the operation cam is rotated to move the lever, and the upper and lower pendulum rods are moved by separating the upper and lower stoppers.   A gas stove mechanical timer device, wherein a first slope and a second slope are provided on a diagonal line of the protruding portion of the stopper operating cam according to claim 4 or 5.   The gas stove mechanical timer device according to claim 1, wherein the elasticity of the second spring is larger than the elasticity of the first spring. The gas stove mechanical timer device according to claim 1, further comprising a return spring at the end portion of the operating cam, and a return spring that swings the back stop cam and returns it to its original position.

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