KR19990036396U - Timer valve - Google Patents

Abstract

The present invention relates to a gas valve that is electrically opened and closed, and more specifically, to open and close the open gas valve as a predetermined set time has elapsed from the open state, so as to be able to open and close manually if necessary. To a timer valve made.

The present invention adds a structure that can be electrically opened and closed to the middle gas valve of the home, but the closed drive provides a timer valve that can be made according to the time elapsed of the set timer, and in parallel with the electric opening and closing to allow the opening and closing manually. In operation, to provide a timer valve having a clutch for releasing the engagement of the transmission force transmission gear group, to simplify the clutch structure to provide a timer valve suitable for compact and lightweight,

Combining gear motor for opening / closing driving, gear group which decelerates and transmits the rotation of this motor, and the gear group is rotated so that gas valve can be rotated, and the clutch is configured to connect or block the power transmission path to the gear group. And a control system configured to close the valve by driving the electric motor when the set time elapses by counting the progress of the set time.

Description

Timer valve

The present invention relates to a gas valve that is electrically opened and closed, and more specifically, to open and close the open gas valve as a predetermined set time has elapsed from the open state, so as to be able to open and close manually if necessary. To a timer valve made.

In general, mechanical elements such as valves of various types are used as elements for opening and closing gas.

It is common for valves to be applied to these elements to open or close the passage, depending on the amount of mechanical displacement, regardless of the type.

The valve as described above may be divided into a valve by manual and a valve by electric when divided into opening and closing means.

The manual valve has a structure in which the operation handle is mechanically coupled to transmit external operating force to a member (ball, spool, etc.) which mainly opens and closes the passage. An electric valve has a structure in which a member that opens and closes the passage is displaced by electric force. The solenoid valve is typically made.

On the other hand, the middle valve of the gas stove, which is mainly used in homes, is mostly operated by opening and closing manually, so if the user forgets it while the stove is turned on, the cooking food is burned or extremely overheated. It may also cause fire.

In addition, when boiled or hungry, there is a need to frequently check the condition.

All of these problems arise because, after some time has passed, the gas stove has to be extinguished and the intermediate valve must be closed.

In recent years, several proposals have been made in which an electric motor is coupled to open and close the manual valve manually and automatically (electrically).

Korean Utility Model Publication Nos. 97-43444, 43445, 43446, and 43447.

The invention is to provide a plurality of gear groups between the valve opening and closing shaft and the electric motor to achieve a reduced power transmission to open and close the valve by the electric force.

Of course, the opening and closing structure of the valve by the electric force is not the best design disclosed above, these design is to separate the group of gears geared as needed to follow the opening and closing operation range of the electric motor and this power to substantially improve the valve It has a power shut-off structure in order to maintain the precise opening and closing point by synchronizing the opening / closing range of the valve opening and closing shaft. That is, the clutch structure is provided in any one of the gear groups from the electric motor to the valve opening / closing shaft in order to match the opening and closing points by arbitrarily turning the valve opening and closing shaft at the installation site. This is because it is impossible to rotate the valve opening / closing shaft while the electric motor and the valve opening / closing shaft are engaged with the gears of the deceleration structure.

Of course, the clutch structure may be manually opened and closed if necessary.

In the prior art, Korean Patent Application Publication Nos. 97-43444, 5, and 43447 have a clutch structure in which a spline is engaged with a gear in sliding contact with the spline, and 97-43446 uses a spring as a spring. It has a clutch structure which is hardened so that this elasticity is coupled to the drive shaft with a pressing force.

Clutch structure by such a spline has a complicated gear group that is not easy to manufacture and the inconvenience to press the clutch during operation, and the clutch using a spring must be operated to overcome the spring force during manual operation Along with the closed end, which requires a lot of force, there is a closed end, which is mechanically press-coupled by the drive shaft and the spring during the electric operation, but slips, but cannot accurately transmit the operating force.

Of course, it becomes even more problematic if the spring elasticity is changed as use continues.

In addition, the above-described designs have disadvantages that are not suitable for miniaturization to be suitable for home use by a spline or spring clutch structure and a complicated gear group.

Applicant of the present invention detects that the gas valve is open as in Utility Model Application No. 97-11057 to solve the above-mentioned closure and damage as described above, the clock is generated and the time setting of the user and the count of this time is set It has been suggested that a predetermined alarm sound is generated when time is reached.

This has the advantage of ensuring the safe use of the gas by informing the user that the desired time has elapsed so that the gas valve can be closed, but if the user is in an unrecognized place or passes by May be triggered as is.

The present invention is designed to supplement the applicant's original design and to safely operate the gas valve in use in a closed position with an alarm when a set time elapses.

The present invention is to provide a timer valve that adds a structure that can be electrically opened and closed to the middle gas valve for home use, but the closed drive can be made according to the elapse of the set timer.

In addition, the present invention is to provide a timer valve having a clutch for releasing the engagement of the transmission force transmission gear group so that opening and closing is also possible manually in parallel with the electric opening and closing.

In addition, the present invention provides a timer valve suitable for compact and lightweight by simplifying the clutch structure.

In addition, the present invention is easy to use and excellent in safety because the opening and closing of the gas intermediate valve is a combination of electric and manual methods, and the power consumption is small only when the valve is opened and closed. It also has an additional purpose to provide a timer valve that can be used.

Timer valve is made to achieve the object of the present invention as described above, the gear motor for opening and closing the transmission and reduction of the motor rotation and the gear group to be engaged so that the rotation of the gas valve by the gear group, but the opening and closing In case of non-time driving, a clutch is formed to block the power transmission path to the gear group, and the time is set and the progress of the set time is counted so that the valve can be closed by driving the electric motor when the set time elapses. It is based on including the control system.

1 is a block diagram of a cross-sectional state showing the present invention.

2 is a block diagram showing a planar state of FIG.

Figure 3 is a bottom view showing the sector gear operating angle of the present invention.

Figure 4 is a block diagram showing a control system configuration for controlling the present invention.

Explanation of symbols on the main parts of the drawings

10: rotation gear 12: position detection switch

13: position detecting projection 14: sector gear

15: magnet 16: axis

17: the worm gear 18: the worm

20: electric motor 30: intermediate valve

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the technical idea of the present invention.

A shaft in which bearing 18 is formed on the shaft of the electric motor 20 in order to affix the rotating gear 10 to the lower end of the rotating knob 31 of the conventional domestic gas intermediate valve 30 and rotate the gear. The dignity gear 17 which fixed the magnet 15 to 16 was condensed.

The sector gear 14 is affixed to the shaft 16 so as to be positioned above the magnet 15, but the shaft and the sector gear are not fixed but are in sliding contact with each other and the sector gear is formed by engaging the rotating gear and rotating the knob. Is fixed to the appropriate housing to be exposed.

The sector gear 14 is formed to have an angle slightly exceeding the opening and closing angle of the valve 30, but protrudes the position detecting projection 13 including an opening or closing end section on one surface before and corresponding to the projection The position detection switch 12 is fixed to the housing.

With reference to Figure 4 looks at the control system made to control the opening and closing of the valve as described above.

A power supply unit 41 for controlling constant voltage and charging from a commercial power supply input terminal (AC IN PUT), a battery 42 for floating charging by the power supply unit, a timer 43 for counting a set time, and controlling an output; A motor driver 44 is configured to control forward and backward motor stop and overload of the motor, and to apply the timer output to the motor.

The electric motor 20 and the magnet 15 are connected to the output end of the motor driver.

In addition, the output of the overload detection unit 48 for detecting an overload at the opening and closing end point of the electric motor is connected to the motor driving unit 44 to block the motor drive output and the magnet drive output during overload detection.

The timer 43 and the motor driving unit 44 are connected to an external input setting unit 45 composed of a switch for controlling time setting and valve opening and closing.

In addition, a display section 46 having a subdivision segment for displaying the set time and the elapsed time of the timer 43 and an LED for indicating the valve opening / closing position is connected to the timer and the position detecting unit, respectively, and alarmed according to the elapsed time of the setting time of the timer. Melody 49 and piezo 50 for outputting sound are connected to the timer to form a control system (Ctrl).

According to the present invention, when the user wants to use the gas intermediate valve 30 for a certain period of time, if the user inputs a desired use time through the external input setting unit 45, the timer 43 displays the set time 46. In this case, the motor 20 and the magnet 15 are driven through the motor driver 44.

The motor starts to drive, the magnet is magnetized, and the sector gear 14 in sliding contact with the worm gear 17 is integrated by the magnet to enable power transmission.

Therefore, the rotational force of the electric motor 20 is decelerated by the worm 18 and the worm gear 17 and rotates the rotary gear 10 through the clutch of the magnet 15 and the sector gear 14 to open the valve 30. ) Will be opened.

When the valve is opened, the gas range is used according to a conventional method of use.

On the other hand, when the valve reaches the fully open position, the motor 20 is overloaded and the output of the motor drive unit 44 is blocked by the overload detection unit 48 that detects the overload, thus the motor 20 and the magnet 15 ) Is off.

The display unit 46 displays the down count of the set time and the opening / closing position of the valve.

When a predetermined set time has elapsed by continuous use, the timer 43 applies the motor drive output to the motor drive unit 44, and the motor drive unit 44 generates an output for rotating the motor in reverse, and at the same time the magnet drive output. By generating the above reaction is transmitted through the gear group is to close the open valve.

Here, the position detecting projection 13 formed on one surface of the sector gear 14 on one surface of the sector gear 14 on the surface of the sector gear 14 for the indication of the opening / closing position of the valve and the forward / reverse driving of the motor is the detection switch 12. ) Is turned on or off according to the state of the position detection unit 47 for detecting it, the LED indicating the opening or closing is turned on, and the driving direction of the motor in the future by the detection output of this position detection unit 47 is the motor drive unit ( This direction is determined by the use of a DC motor, which is possible by changing the supply polarity. Of course, in the case of the magnet 15 is operated regardless of the polarity.

When the valve that has been opened as described above is closed as the set time elapses, the timer 43 drives the melody 49 to alert that the gas supply is cut off through the piezo 50.

On the other hand, when there is no time set in the timer, the valve stays in the open or closed position and the user can open and close the external input setting unit 45 for opening or closing without using the timer.

In addition, the present invention can continue to be used by the battery 42 even if the power supply is interrupted by a power failure, the rotary gear 10 of the rotary knob 31 is clutched from the gear group of the motor side in the state that the power is excluded The magnet is in a state of being separated from the sector gear 14 so that the sector gear 14 can be manually operated while idling on the shaft 16. At this time, the sector gear 14 is engaged with the rotational gear 10 in a meshed state, whereby the position of the valve is in a continuously detectable position. Thus, the sector gear 14 slides with the magnet 15 on the shaft 16 and can be operated manually without any interference.

Next, another embodiment of the present invention will be described with reference to FIG. 5.

This is a forward and reverse centrifugal clutch (24) having a liner and a drum on the shaft of the electric motor (20) to abut the rotating gear (10) on the lower end of the rotating knob (31) of the intermediate valve (30). The pinion (18a) is fixed to the drum by combining the gears 14a to 14c to the pinion, but the gear 14a to the rotational gear (10).

The gear 14a opens and closes the valve 30, but protrudes a position detecting protrusion 13 including an opening or closing end section on one surface before and after, and has a position detecting switch 12 corresponding to the protrusion. It is done by fixing on.

According to another embodiment as described above, when the valve 30 is opened and closed by the electric motor, when the motor 20 is rotated, the normal liner constituting the centrifugal clutch 24 is expanded by the centrifugal force and contacts the drum. Torque is transmitted.

Therefore, the rotational force of the motor rotates the rotation gear 10 formed in the valve through the plurality of gears 14c to 14a which make the speed reduction through the pinion 18a, thereby opening or closing the valve.

Of course, when the motor is not driven, the centrifugal clutch 24 can be easily and easily possible when the user wants to open and close manually by keeping the motor and the gear group in the power-off state. In addition, the centrifugal clutch 24 includes both forward and reverse directions so that the connection of the liner accommodates the forward and reverse directions, respectively, so that the motor power can be transmitted.

The configuration and operation of the control system for controlling such another embodiment are similar to those described above, and thus a detailed description thereof will be omitted, and it is easy to exclude the magnet and form the same since it excludes the magnet which is an electric clutch and constitutes a centrifugal clutch. I can understand.

Finally, the gear groups of the present invention can be variously modified as a structure for easily obtaining a reduction ratio of the required, which is very easy, so that all such modifications belong only to the claims of the present disclosure.

According to the present invention as described in detail above, at least a manual and electric opening and closing of the home gas intermediate valve is possible, so that it is convenient to use, and when the gas is to be supplied for a limited time, it is possible to set the time limit by a timer. Therefore, when the set time elapses, the gas valve is automatically closed, and there is an excellent effect of preventing various damages caused by forgetting and leaving the state in use.

In addition, it is a very practical design having the effect that manufacturing can be supplied at low cost by simply making this timer valve.

Claims (4)

In the valve comprising a motor and a plurality of reduction gears for rotating the valve shaft in order to temporarily use the gas opening and closing valve and to close automatically, It configures the electric motor for opening / closing drive, the gear group which decelerates and transmits the rotation of the motor, and the clutch which engages and rotates the gas valve shaft by the gear group, and connects or blocks the power transmission path to the gear group, and sets the time. And counting the progress of the set time to drive the electric motor to close the valve when the set time elapses. The method according to claim 1, wherein the rotary gear 10 is fixed to the lower end of the rotary knob 31 of the domestic gas intermediate valve 30, and the dignity 18 is formed on the shaft of the electric motor 20 to rotate the gear. Adhesion to the dignity gear (17) fixing the magnet (15) to the bearing support shaft (16), The sector gear 14 is affixed to the shaft 16 so as to be positioned above the magnet 15, but the shaft and the sector gear are not fixed but are in sliding contact with each other and the sector gear is formed by engaging the rotating gear and rotating the knob. Is fixed to an appropriate housing to which the sector gear 14 is exposed, while the sector gear 14 is formed to have an angle slightly exceeding the opening / closing angle of the valve 30, and a position detection including an open or closed end point section on one surface before and after And a projection valve (13) protruding and fixing a position detection switch (12) corresponding to the projection to the housing. According to claim 1, wherein the rotary gear 10 is attached to the lower end of the rotary knob 31 of the intermediate valve 30 and has a liner and a drum on the shaft of the electric motor 20 to rotate the gear. Combining a reversible centrifugal clutch 24 to fix the pinion 18a to the drum, and engages the gears 14a to 14c to the pinion, and engages the gear 14a with the rotation gear 10, The gear 14a is formed by protruding a position detecting projection 13 including an opening or closing end point section on one surface before and after and fixing the position detecting switch 12 corresponding to the projection to the housing. Timer valve. 4. The power supply unit 41 according to claim 2 or 3, which controls constant voltage and charging from a commercial power input terminal (AC IN PUT), a battery 42 that performs floating charging by the power supply unit, and counts a set time. Timer 43 for controlling the output, and the motor drive unit 44 to control the forward and reverse of the motor and the stop due to the overload of the motor and to apply the timer output to the motor, and the electric motor 20 at the output end of the motor drive unit ) And to connect the output of the overload detection unit 48 to detect the overload at the opening and closing end point of the electric motor to the motor driving unit 44 to block the drive output upon overload detection, wherein the timer 43 And an external input setting unit 45 configured as a switch for controlling the time setting and opening / closing of the valve to the motor driving unit 44, and displaying the set time and the elapsed time of the timer 43. The display unit 46 having a subdivision segment and LEDs indicating valve opening / closing positions are respectively connected to the timer and the position detecting unit, and the melody 49 and the piezo 50 which output an alarm sound according to the elapse of the set time of the timer are connected to the timer. Timer valve comprising a control system (Ctrl) made in connection with.