TWM569405U - Universal knob and automatic gas shutdown machine using the same - Google Patents

Abstract

A universal knob and a gas automatic shut-off machine using the same, comprising: a knob, a plurality of engaging portions are formed on the outer side of the casing, a selective sleeve shifting member is arranged on the inner top, and a trigger of an induction switch is arranged on the inner side; An automatic shut-off machine that includes a terminal wheel to penetrate and engage the knob, and includes a circuit board and an electrical switch, a small motor, a drive unit, a battery, etc., among which the drive unit drives The shaft passes a pusher wheel and an intermediary wheel. When the small motor is started, the pusher wheel meshes to drive the intermediary wheel to drive the terminal wheel, and then the knob can be turned back to the closed position. When the small motor is not started, the intermediary wheel It is not engaged and driven by the pusher wheel, but it is in a separated and idling state. Then you can manually turn the knob to adjust the size of the fire or switch the gas.

Description

Universal knob and gas shut-off machine using the same

This new model is a lightweight gas automatic shut-off machine with a universal knob as its core, which can be easily installed on existing mechanical gas stove trim plates (upper or front panel).

With the change of consumption patterns such as the Internet and stores, many products must have the basic conditions for easy handling and self-installation. However, some " generic " gas furnace automatic shutdown patents only focus on the "automatic shutdown" technical means, and ignore its "knob" and various brands of long, short, thick, and thin gas furnace switches. At times, there are problems of substandard specifications, which cause the predicament of unfavorable implementation of its patents. It is true that for the problem of too thin a rotating shaft, the conventional technique is to drill the knob sleeve and then insert the screw to fix it. However, using tools, alignment, and locking in a narrow space is troublesome, and the knob is often rotated, and the screws are easy to loose; not to mention this method cannot solve the problem of too thick and short shafts.

The shaft of the gas furnace switch is supplied by major spare parts manufacturers to major brands. Common shaft specifications have two diameters and faces: 1. Bold ( 8.0mm), with the engaging surface facing 12:00; 2. Thin body ( 6.8mm), with the engaging surface facing the direction of 4:30; and can be roughly divided into three lengths: 1. Long type (those protruding from the panel about 1.5cm); 2. Medium type (those that are approximately flush with the panel) ; 3. Short type (recessed in the panel, about -1cm). In addition, the depth of the "sleeve hole" is about 1cm, and the allowable clearance of the fit is only 0.02mm (two pieces). It can be seen that there are as many as six common specifications, and the fit must be tightened, which is indeed not easy. Furthermore, due to improper configuration of the parts, the incomplete or insufficient fit is also the cause of failure. Therefore, in view of the lack of prior art, the ROC patent descriptions are listed below.

Figure 1 Patent No. 529699 "Self-Assembly Gas Furnace Switching Timing Device" Patent:

1. The motor's force is on the shaft sleeve, which is too close to the shaft (the radial length is too short), and the rotation is laborious.

2. Many components, large body and high cost.

3. Although it is a universal type that can be assembled by itself, the knob sleeve hole only applies one type of "spindle" specification.

Figure 2 Patent No. 553361 "Timer for Automatic Turn-off of Gas Furnace" Patent:

1. The "disc-shaped wheel" needs to be positioned above the knob with multiple "positioning wheels" and supported by screws and springs. Increasing the axial length causes the body to be too large and thick.

2. There will be a heavy feeling of jamming when manually switching on or adjusting the fire.

3. Unable to install by yourself.

4. The knob sleeve hole is only suitable for one type of "spindle".

Figures 3 and 4 Patent No. M526658 "Gas Furnace Protection Device":

1. The "knob", "shell", and "switch" are separately set up and then connected in series to increase the axial length. And in order to meet the requirements, it is impractical to lengthen the length of the "rotating shaft" without an engaging surface (not a diagram), so that its "knob" cannot be applied, cannot be used universally, and is unfavorable to implement.

2. Its unveiling is a universal type that can be installed by itself. After the gear is engaged with the shaft without the engaging surface, it will be loose due to loose clearance and lack of friction.

3. The motor's force is on the shaft itself, which is very difficult to drive rotation, consumes power, and has insufficient torque.

4. As shown in Fig. 4, which is another knob ", the penultimate sentence of the description states that" the remaining component composition and implementation are equivalent to those in the above embodiments ", then the" knob "accommodates All components such as motors, gears, batteries, etc. must be added to the slot, but it is obvious that the knob contains insufficient space in the slot; therefore, the "knob" simply cannot be turned off automatically.

In addition, the previous technology mostly used the "battery" as the power source, but the time or speed at which power consumption occurs will be affected by the battery itself aging, ambient temperature, and discharge rate (intensive use of sharp time will increase the discharge rate) and other factors Instead of gradually depleting with the "time proportion". These changing factors will cause " temporary parameters ", make the voltage detection inaccurate, or the process from weak current warning to insufficient power (or exhaustion) is too fast. Therefore, if the user fails to find it in time or thinks that there is still power left, and is not taking care of it, it may cause dangerous situations such as continuous dry burning due to "the current power is not enough to drive the motor to turn off the gas". This is where the blind spot of the design of battery-type safety equipment is, and it is careless in matters involving life and property safety!

In view of the lack of the bottleneck of the conventional structure, the main purpose of the new model is to provide a "universal knob" that can be easily applied to a variety of gas stove switch "spindles" of different specifications; the knob housing has an optional sleeve hole shifter on the top , optionally having therein one large collet bore to move the shift block a small set of apertures, the sleeve may be bonded to the bold ( 8.0mm) or fine ( 6.8mm) shaft, which solves the specifications of thick, thin and long shafts.

In addition, the knob includes two accessories, and a large sleeve and a small sleeve of an adapter sleeve can be used in accordance with the needs, so as to solve the length problem of the medium-sized shaft; the two adapter sleeves can be mutually Fitting and fitting with the displacer again solves the problem of the length of the short shaft. In other words, only one knob and two adapter sleeves are needed to solve all the problems of substandard specifications. In particular, the displacement block and the adapter sleeve are replaceable . When exporting, if you meet the requirements of a "spindle" of other specifications, you can tailor the size required for the order.

Another object of the present invention is to provide a "gas automatic shut-off machine", which can be installed by itself (the base is fixed to the gas furnace trim with 3M strong double-sided adhesive, which can be stably installed); lightweight and cheap (simple components and reduced cost); Can be universally used for mechanical gas stove countertops (with the universal knob as the core and the two adapter sleeves as auxiliary); it can still be operated smoothly when manual-the technical characteristics are as follows:

1. Basis "axle principle", the motor force applied to the outer circumferential surface of the knob, the (maximum radial distance), the maximum outer diameter of the knob (maximum wheel diameter) furthest from shaft - belt shaft in the most time-saving Electricity .

2. According to the "wheel and shaft principle" , the terminal wheel uses the knob as the axis- the thicker the shaft body, the more energy and power is saved .

3. Do not jam when manually switching on or adjusting the fire -the intermediate wheel is only driven when the small motor is started, and it appears idling when manually.

4. The knob can be snap-fitted --the terminal wheel can be snap-fitted correspondingly without the need for setting pieces.

5. Forced shutdown with specific voltage value -The starting voltage of the small motor is about 1V, so the specific voltage value is set to 2.5V and so on.

The gas automatic shut-off machine includes: a knob, a plurality of engaging portions are formed on the outer periphery of a casing, and a trigger of an inductive switch is fixed around the inner side periphery; an automatic shut-off machine includes a base and an upper cover An accommodation box formed with a central through-hole ring part for accommodating a terminal wheel which also has a central through-hole to pass through the knob and engage its casing; and an extension part for holding A circuit board, an inductive switch, a small motor, a drive assembly, a battery, etc. are arranged, wherein the drive shaft of the drive assembly passes an ejector wheel and an intermediary wheel. When the small motor is started, the ejector is pushed Wheel engagement drives the intermediary wheel to drive the terminal wheel, which in turn drives the knob to return to the closed position. When the small motor is not started, the intermediary wheel is not engaged and driven by the pusher wheel, showing a state of separation and idling, and can be manually rotated and adjusted easily. Fire or switch gas.

The drive assembly includes a drive shaft with a chord-cut engagement surface, the pusher wheel having a through hole corresponding to the engagement surface, and the intermediary wheel through a sleeve through hole without a corresponding engagement surface. A driving end surface of the pushing wheel is formed with a plurality of helical tooth portions, which is convenient for correspondingly driving the intermediary wheel with an opposite end surface having a helical tooth portion, and the rolling end surface at the other end is evenly and radially spread to form a plurality An axial concave-convex wavy curved surface; a fixed stopper fixed to the base and abutting against a concave curved surface of the pushing wheel, so that its rolling end surface is gradually concave and convex on the surface of the wavy curved surface It can be moved back and forth axially against the fixed stop; a sleeve through hole of the intermediary wheel can be used to loop a spring. When the pusher wheel is moved forward , the spring is compressed so that the helical teeth of the two mesh with each other. When the ejection wheel is moved backward , the spring can relax and rebound, so that the ejection wheel is rebounded and separated from the intermediary wheel, so that the axial reciprocating motion of a shrinking and retracting can be engaged to drive the intermediary wheel to continue smoothly. Unidirectional rotation in the clockwise direction can drive the terminal gear to rotate and advance Driven switch back to the closed position.

When the power is turned off, the motor gradually stops according to the rotational inertia , and the end surface of the rolling push will eventually abut the fixed stop with the concave curved surface as a result of no power. Then the spring is loosened and springs out, causing the pushing The wheel is separated from the intermediary wheel; when the knob is turned manually, the motor is not activated (only after the alarm sounds), and the pusher wheel cannot be driven, so the intermediary wheel is in a separate idling state, regardless of the manual knob. Turning or reversing are not subject to the drag of the motor, the drive shaft, and the pushing wheel. You can easily turn the knob to adjust the size of the fire or turn off the gas.

The driving circuit of the above structure is: a microcontroller, which can be set in a control host inserted in a kitchen power socket, and connected with an RF signal (Example 1), which is required for business use; or can be set in The inside of the box (the second embodiment) uses a high-capacity 3V battery, which can be used by ordinary households for three to four years. When the knob is manually turned on, the terminal wheel is rotated, the sensor switch is turned on, and the electronic route is triggered. The microcontroller is caused to start a timer, when the counting time reaches the end of the alarm sound, or when the power drops to a specific voltage value, the motor and the driving component are turned back to the ring gear to drive the knob to turn off the gas.

Please refer to Figures 5 to 10: One of the "universal knobs" of this model, which includes a knob 1 with a housing 11, a convex handle 10 is formed above the housing, and an optional sleeve hole is provided on the top of the housing 11 for displacement The displacement member 12 includes a displacement block 122 and a movable card 122 located in the limitation slot 121 and movable to the two ends in the length direction of the limitation slot. Alternatively, one has to apply a large set of small aperture a and B sets of holes, corresponding to a set of lines can be used to choose the switch shaft diameter and length of the match, the switch is a bold elongated shaft axis A1 and a thin elongated body The rotating shaft B1 can be locked when the shift block is moved to one end or the other end of the limiting groove, and the large set of holes A or a small set of holes B can be located at the center of the knob.

Please refer to Figure 6: The top wall of the limiting groove is provided with a plurality of equally-spaced limiting ribs 1211. The middle sections of the two inner side walls of the limiting groove are respectively opened with two parallel longitudinal slits 1210 to form two independent An elastic piece 1212, the inner edges of the two inner side walls of each independent elastic piece form a hook portion 1213; an outer top surface of the displacement block 122 is provided with a groove 1221 corresponding to the limiting ribs 1211, and the displacement block moves After being placed at one end or the other end, the engagement does not shake. A concave slide rail 1223 is formed at each of the two outer sides of the shifting block in the width direction and near the two lower edges. The hook portion 1213 hooks and does not fall off after stopping.

Please refer to Figures 7-9: The knob includes two accessories, an adapter sleeve 13 with a large sleeve hole a the same diameter as the large sleeve hole of the displacement block, and a small sleeve with the same aperture diameter as the small sleeve hole of the displacement block. The adapter sleeve 14 of the hole b, wherein the adapter sleeve 13 of the large sleeve hole has a convex end 131 that can be fitted into the small sleeve hole of the displacement block, and the adapter sleeve 14 of the small sleeve hole has The convex end 141 that can be fitted in the large sleeve hole of the displacement block is selected from a small sleeve hole or a large sleeve hole that is fitted in the displacement block, and then is used for a switch shaft with the same diameter and length. The switch shaft is a bold medium shaft A2 and a thin body long shaft B2; and after the adapter sleeves can be sleeved with each other, a small sleeve hole or a large sleeve corresponding to the shift block is selected. after the sleeve ports, and then sets the switch to the shaft diameter and the length of the match, the switch is a bold shaft short axis A3 and a serif type short shaft B3.

Please refer to Figs. 10-16: Embodiment 1 of the new "gas automatic shut-off machine", which includes: a knob 1 and a casing 11 having an axial length covering the displacement member (may be, for example, but not limited to) 2.5cm), so that the plurality of equally spaced engaging portions 110 provided on the outer periphery of the housing are in contact with the corresponding engaging portions 651 (FIG. 5) of the terminal wheel 65 of the automatic closing machine 2. A trigger 40 of an inductive switch is fixed; an automatic closing machine 2 includes: a receiving box 20 formed by a base 21 and an upper cover 22, the receiving box is formed with a collar portion 23 having a central through hole 200, It is provided with a terminal wheel 65 which also has a central through hole 650. The knob is passed through the knob to engage the casing, and an extension 24 is provided for receiving a circuit board 31 and one of its electrical connections. The induction switch 4, a A small motor 5 fixed in the motor slot 50, a driving unit driven by the small motor 6, a battery 33 placed in the battery chamber 330, an LED power indicator 34, and a light transmitting portion provided on the upper end surface of the upper cover 341; One of the driving shafts 61 of the driving assembly 6 passes a pushing wheel 62 and an intermediary wheel 64 when the small motor starts The pusher wheel meshes and drives the intermediary wheel to drive the terminal wheel, which in turn drives the knob to return to the closed position; when the small motor is not started, the intermediary wheel is not driven by the pusher wheel meshing, showing a state of separation and idling, which can easily Manually adjust the furnace fire or switch gas.

Please refer to FIG. 11: a ring step 231 for accommodating the terminal wheel is formed at the base position of the ring section 23, and the inner ring of the upper cover position of the ring section 23 can be opposite to the ring step 231 The limiting thickness 璧 221 allows the terminal wheel to rotate between the ring step and the limiting thick wall; the limiting thickness 221 provides a notch 2210 to facilitate the contact and engagement of the intermediate wheel 64 and the terminal wheel 65, and to facilitate the induction switch 4 And the circuit board 31 at the set position is partially stretched above the tooth surface of the terminal wheel, and corresponds to the triggering member 40. thereby, Eliminate positioning and reduce space.

Please refer to FIGS. 10 to 12 : the engaging portions 110 of the housing 11 of the knob 1 are along a plurality of equally spaced chord cutting planes, and the inner periphery of the terminal wheel 65 is formed with corresponding engagement portions with the plurality of equally spaced chord cutting planes. 651, protruding from the ring step 231 toward the center, and can be correspondingly engaged with the engaging portion of the knob housing.

Please refer to Fig. 12 : The small motor is provided with a matching gear for increasing the torque; the intermediate wheel 64 and the terminal wheel 65 of the driving assembly may be two bevel gears; the intermediate wheel 64 'is a spur gear, The terminal wheel 65 ′ is a side gear; the induction switch 4 and the trigger member 40 may be, for example, but not limited to, a magnetic reed switch and a magnet.

Please refer to FIG. 13 : The driving assembly 6 includes a driving shaft 61 having an engaging surface 610, the pusher wheel 62 having a through hole 621 corresponding to the engaging surface 6210, and a sleeve having no corresponding engaging surface The intermediary wheel 64 of the through hole 641 of the barrel 640; a driving end surface 623 of the pusher wheel is formed with a helical tooth portion 6231 having a plurality of helical tooth surfaces, and is used to correspondingly drive an intermediary wheel with an helical tooth portion 6431 at an opposite end surface 643 64. A rolling end surface 624 is formed at the other end of the rolling surface, and a plurality of axial concave-convex wavy curved surfaces 6241 are formed uniformly and radially. A concave curved surface fixed on the base 21 and abutting the pushing wheel is formed. The fixed stopper 25 can push its end surface against the fixed stopper with a concave and convex wavy curved surface during the operation of the motor, and can be reciprocated axially. The sleeve 640 of the intermediate wheel 64 can be used for the ring. A spring 63 is sleeved. When the pusher wheel is moved forward , the spring is compressed to engage the helical teeth. When the pusher wheel is moved backward , the spring can relax and rebound, so that the pusher wheel is rebounded back to the pusher wheel. separating idler gear, whereby a discharge of a reduced axial reciprocation, the interposer may drive wheel connection of a single clockwise Rotation, the terminal can be driven wheel rotates, and thus drive the switch back to turn off the gas.

When the power is turned off, the small motor slowly stops rotating according to the rotational inertia , and the end face of the roller will eventually abut the fixed stop with the concave curved surface as a result of no power. The pusher wheel is separated from the intermediary wheel; when the knob is manually turned, the small motor is not normally activated (it only starts after the warning sound is over), and the pusher wheel cannot be driven, so the intermediary wheel is in a separate idling state. Regardless of whether the manual knob is turned or reversed, the intermediate wheel and the terminal wheel are subject to the drag resistance of the motor, the drive shaft, and the pusher wheel, and the knob can be easily turned to adjust the size of the fire or turn off the gas.

Please refer to FIG. 14: A different type of the new model can be implemented. The induction switch 4 ′ of the automatic shut-off machine 2 ′ is set on the circuit board 31 ′, and is set corresponding to the trigger 40 ′ provided by the knob.

Please refer to Fig. 15: A control host 9 is inserted into a power socket of the kitchen. The panel is provided with a time display 801, a key set 802, and a reset button 807. The circuit board 831 is provided with a buzzer (not shown in the figure).示).

Please refer to FIG. 16-1: a micro-controller 7 is provided on the circuit board 31, 31 'of the auto-closing machine, and a control circuit 70 thereof is connected to an RF transmitting-receiving circuit 71, a reed switch induction circuit 74 (its input terminal) Is connected to the reed switch 4), a motor drive circuit 75 (its output terminal is connected to the small motor 5); and a voltage detection unit between an input terminal and the battery, its flash drive circuit 73 (its output The terminal is connected to the LED power indicator 34); a power circuit 730 is connected to the battery 33 at its input.

Please refer to Figure 16-2: The microcontroller 8 of the control host 9 has a built-in counting program, which can be preset time or manually set the time; its main control circuit 80 is connected to an RF transceiver circuit 81, (connected with the Automatically closes the signal connection of the RF radio-frequency transceiver circuit 71 in the machine), and a certain time setting circuit 82 (its input terminal is connected to the key group 802), a restart reset circuit 87 (its input terminal is connected to the reset button 807) An output terminal is connected to the time display 801, a sound driving circuit 86 (its output terminal is connected to the buzzer); a power circuit 830, its input terminal is connected to a plug of the control host head.

Above, when the knob is manually turned on, the induction switch 4 is turned on to trigger an electronic route, and the microcontroller 7 is started by a radio frequency or manually sets the timing, and the warning sound is driven from the counting time to the end of the sound, That is, the RF starting motor turns the driving assembly back to the terminal wheel to drive the knob to return to the closed position. Or, when the voltage drops, the flash drive circuit drives the LED display lamp to flash. When the voltage value reaches a certain value (for example, 2.5V), the motor drive circuit is driven. After the drive component is activated, the terminal wheel is driven and the knob is turned back. Close position.

Please refer to FIG. 17 for a circuit diagram of the second embodiment: the electronic equipment of the microcontroller in the machine which is automatically closed is the same as that of the first embodiment (FIG. 16-1), but the RF radio frequency transceiver circuit is omitted; The surface end is provided with a time display, a key set, and a reset button, and a buzzer (not shown above) is provided on the circuit board; the microcontroller has a built-in counting program, which can preset the time or manually set the time, Timing setting circuit 72 '(its input end is connected to the key set of the cover), a reset reset circuit 72' (its input end is connected to the reset button of the cover), an output end is connected to the time display of the cover, a sound The driving circuit 76 '(its output terminal is connected to the buzzer).

The above disclosure is only used to illustrate the present invention and is not a limitation. The implementation of each component is used to illustrate these embodiments but not a limitation. Those of ordinary skill in the art understand that modifications, changes, or equivalent treatments made without departing from the spirit and scope defined by the following claims will fall within the protection scope of this patent.

1‧‧‧ knob

10‧‧‧ convex handle

11‧‧‧shell

110‧‧‧ Engagement Department

12‧‧‧ Displacement

121‧‧‧ limit slot

1210‧‧‧Open slit slit

1211‧‧‧ limit rib

1212‧‧‧ shrapnel

1213‧‧‧Card hook

122‧‧‧shift block

1221‧‧‧Ditch

1223‧‧‧Slide

G‧‧‧Gas stove trim

A1‧‧‧ bold long shaft

A2‧‧‧ bold medium shaft

A3‧‧‧bold short shaft

B1‧‧‧Slim body long shaft

B2‧‧‧Slim body medium shaft

B3‧‧‧Slim body short shaft

13, 14‧‧‧ adapter sleeve

131, 141‧‧‧ convex end

A, a‧‧‧large set of holes

B, b‧‧‧ small set of holes

2, 2'‧‧‧ automatic shutdown machine

20‧‧‧Receiving box

200‧‧‧ Central Through Hole

21, 21'‧‧‧ base

22‧‧‧ Upper cover

23‧‧‧Ring Set Department

231‧‧‧Ring Order

221‧‧‧thickness limit

2210 ‧ ‧ gap

24‧‧‧ extension

25‧‧‧Fixed stopper

33‧‧‧ Battery

330, 330'‧‧‧ Battery Room

31, 31'‧‧‧ circuit board

34‧‧‧ Display Light

341‧‧‧Transmitting Department

4, 4'‧‧‧ sensor switch

40, 40'‧‧‧Trigger

5‧‧‧ Small Motor

50‧‧‧Motor slot

6‧‧‧Driver

61‧‧‧Drive shaft

610‧‧‧ snap face

62‧‧‧Ejection wheel

6210‧‧‧Corresponding engagement surface

623‧‧‧Drive end face

6231‧‧‧ Helical teeth

624‧‧‧roll face

6241‧‧‧wave surface

63‧‧‧Spring

64, 64'‧‧‧ Intermediary round

640‧‧‧ sleeve

6401‧‧‧through hole

643‧‧‧ opposite end

6431‧‧‧ Helical teeth

65, 65'‧‧‧ terminal wheels

650‧‧‧ Central Through Hole

651, 651'‧‧‧ Corresponding engagement section

7, 7'‧‧‧microcontroller

70, 70'‧‧‧ control circuit

71‧‧‧RF RF transceiver circuit

72'‧‧‧ timing setting circuit

730, 730'‧‧‧ Power Circuit

73, 73'‧‧‧flash drive circuit

74, 74'‧‧‧ Magnetic reed switch induction circuit

75, 75'‧‧‧ motor drive circuit

76'‧‧‧ sound driver circuit

77'‧‧‧ restart the reset circuit

8‧‧‧ Microcontroller

80‧‧‧ main control circuit

801‧‧‧ Display

802‧‧‧button set

807‧‧‧Return button

81‧‧‧RF RF transceiver circuit

82‧‧‧Timer setting circuit

830‧‧‧Power circuit

86‧‧‧Sound drive circuit

87‧‧‧ restart the reset circuit

9‧‧‧Control Host

Figure 1: Expanded view of the conventional patent No. 529699.

FIG. 2 is a front sectional view of a conventional patent No. 553361.

Figure 3: A diagram of an embodiment of the conventional patent No. M526658.

Figure 4: A diagram of another embodiment of the conventional patent No. M526658.

Figure 5: A comparison diagram of the new universal knob and the gas automatic shut-off machine using it.

FIG. 6 is an enlarged comparison diagram of the displacement member and the limiting grooves of the novel displacement member.

FIG. 7 is a schematic diagram of a comparison between a small sleeve hole and two adapter sleeves and a large sleeve hole and two adapter sleeves of the novel displacement member.

FIG. 8 is a schematic cross-sectional view of the configuration of the new type of shift block and two adapter sleeves fitted on the long, medium and short bold shafts.

FIG. 9 is a schematic cross-sectional view of the configuration of the new type of shift block and two adapter sleeves fitted on a long, medium and short thin shaft.

Figure 10: This is a schematic front view of the front and rear of the new type of automatic closing machine through sleeve.

Figure 11: Schematic diagram showing the expansion of the new automatic gas shut-off machine.

Fig. 12 is a cross-sectional view of the bevel gear and face gear of the new automatic closing machine.

Figure 13: Schematic diagram of the drive assembly of the new model.

Figure 14: Schematic diagram of another type of new automatic shut-off machine.

Figure 15: Schematic diagram of a new type of peripheral in a control host.

Figure 16-1: This is a block diagram of the circuit operation of the new type of automatic gas shut-off machine (controlling host separation).

Figure 16-2: The block diagram of the circuit operation of the new type control host.

Figure 17: The block diagram of the circuit operation of the independent product of the control circuit built in the new type of automatic gas shut-off machine.

Claims (10)

A universal knob includes: a knob with a casing, and a selective sleeve displacement member is arranged on the top of the casing; the displacement member includes a limit slot, and a movable card is set in the limit slot, which can be A displacement block that is displaced toward both ends in the length direction of the limit slot; the displacement block is provided with a large set of holes and a small set of holes that can be applied, which is a corresponding set of switch shafts that match the caliber and length. And when the shift block is shifted to one end or the other end, it can be stuck, and the large jack or a small jack can be located at the center of the knob. The universal knob according to claim 1, wherein the inner wall of the limiting groove is provided with a plurality of equally-spaced limiting ribs, and the middle section of the two inner sidewalls in the width direction of the limiting groove is separated by two open longitudinal slits. The elastic pieces, the inner edges of the two inner side walls of each independent elastic piece form a hook portion; the outer top surface of the displacement block is provided with an equal number of grooves corresponding to the ribs, and then the card is moved to one end or the other end to be stuck. If it does not shake, a concave slide rail is formed at each of the two outer sides of the shift block in the width direction and near the two lower edges, which are used to hook the hook portion of the limit slot when the shift slides, and after stopping Does not fall off. The universal knob as described in claim 1, wherein the knob includes two accessories that can be selected as required, an adapter sleeve with a large set of holes having the same diameter as the large set of holes of the shift block, and a shift block with the shift block Small sleeve hole adapter sleeve with the same caliber; the large sleeve hole adapter sleeve has a convex end that can fit into the small sleeve hole of the displacement block, and the small sleeve hole adapter sleeve The barrel has a convex end which can be fitted into the large sleeve hole of the displacement block. After selecting a small sleeve hole or large sleeve hole corresponding to the sleeve, the sleeve is used for a switch shaft with the same diameter and length. ; And after these adapter sleeves can be sleeved with each other, a small sleeve hole or a large sleeve corresponding to the displacement block is selected, and then the sleeve is used for the switch shaft with the same diameter and length. An automatic closing machine includes: a receiving box formed by a base and an upper cover, the receiving box forming a ring sleeve portion with a central through hole, a terminal wheel having a central through hole, and an extension portion It contains a circuit board and one of its electrical connections: the induction switch, a small motor, a drive component driven by the small motor, a battery that supplies power, and an LED power indicator; wherein the induction switch is located in the A circuit board corresponding to the trigger provided by the knob; the drive assembly includes a drive shaft with a chord-cut engagement surface, a pusher wheel having a through hole corresponding to the engagement surface, and The intermediary wheel corresponding to the sleeve through hole of the engaging surface, the driving end surface of the pushing wheel is formed with a plurality of helical tooth portions, which facilitates corresponding driving of the intermediary wheel having an helical tooth portion on the opposite end surface. The rolling end surface is uniformly and radially spread to form a plurality of axial concave-convex wavy curved surfaces. A fixed stopper fixed to the base and abutting a concave curved surface of the pushing wheel, so that the rolling end surface is in the motor operation. With concave and convex waves The curved surface abuts against the fixed stopper and can be reciprocated axially; a sleeve through hole of the intermediary wheel can be used to loop a spring, so when the pusher wheel moves forward, the spring is compressed, making the two beveled When the ejection wheel moves backward, the spring can relax and rebound, so that the ejection wheel is springed back and separated from the intermediary wheel; by this, a shrinking and retracting axial reciprocating motion engages and drives the intermediary wheel to continue The unidirectional rotation in clockwise direction drives the terminal gear to rotate, and when the small motor is not started, the intermediary wheel and the pusher wheel are in a separate idling state. The automatic closing machine as described in claim 4, wherein the base position of the ring part is formed with a ring step for accommodating the terminal wheel, and the inner ring of the upper cover position of the ring part is compatible with the ring The oppositely-thick limit-thickness wall allows the terminal wheel to rotate between the ring-level and the limit-thickness wall without shaking or shifting; the limit-thickness opening has a gap to facilitate the contact between the intermediate wheel and the terminal wheel, It is convenient for the local switch of the circuit board including the position of the induction switch to be positioned above the tooth surface of the terminal wheel, and corresponds to the trigger. The automatic shutdown machine according to claim 4, wherein the inductive switch is a reed switch and the trigger is a magnet. A gas automatic shutoff machine, comprising: a universal knob as described in any one of claims 1 to 3, wherein the outer periphery of the casing is provided with a plurality of equally spaced engaging portions, and a sensor is fixed at the periphery of the inner side surface. A trigger of a switch; an automatic shut-off machine having the structure of an automatic shut-off machine as described in any one of claims 4 to 6, wherein the inner periphery of the terminal wheel is formed to correspond to a plurality of equal intervals The engaging part can protrude from the ring part in the center direction and correspondingly engage with the engaging part of the knob housing. With this engagement, when the small motor starts, it drives the terminal gear to rotate and then drives the knob. Turn back to the closed position, and when the small motor is not started, you can freely turn the knob manually. The automatic gas shut-off machine according to claim 7, wherein the engaging portions of the knob housing are along a plurality of equally spaced chord cut planes; the corresponding engaging portions of the terminal wheel are a plurality of equally spaced chord cut planes. The automatic gas shut-off machine according to claim 7 or 8, wherein the circuit board is provided with a microcontroller and a buzzer, and its extension is provided with a time display, a button set, and a restart reset on the surface end of the upper cover. Button, a light-transmitting part of a display lamp; the microcontroller has a built-in counting program, which can be preset time or manually set the time, and connected: a magnetic reed switch induction circuit, the input end of which is connected to the magnetic reed switch A motor drive circuit, the output end of which is connected to the small motor, a flash drive circuit, whose output end is connected to the power display lamp, when the voltage value reaches a specific value, the motor drive circuit is driven, and the flash drive circuit is driven; The input circuit of the setting circuit is electrically connected to the key set; and a sound drive circuit whose output terminal is connected to the buzzer; a restart reset circuit whose input terminal is connected to the reset button; a power circuit whose input terminal is Connect one of the batteries. An automatic gas shutoff machine, comprising: the automatic gas shutoff machine according to any one of claims 7 or 8, wherein the circuit board is provided with a microcontroller, and the control circuit is connected to an RF radio frequency transceiver circuit, and A magnetic reed switch induction circuit whose input end is connected to the reed switch; and a motor drive circuit whose output end is connected to the small motor; and a flash drive (voltage detection) circuit whose output end is connected to the power supply Display lamp; a control host plugged into a power socket, including a casing, and a circuit board provided with a microcontroller and a buzzer, the casing panel is provided with a time for electrical connection with the circuit board Display, key set, reset button; the microcontroller has a built-in counting program, which can be preset time or manually set the time; its main control circuit is connected to an RF radio frequency transceiver circuit, which is connected to the RF circuit of the automatic shutdown circuit board Two-way signal connection of the transceiver circuit; and a certain time setting circuit, the input end of which is connected to the button group; a restart of the reset circuit, the input end of which is connected to the reset button; an output end of which Display; a sound drive circuit whose output end is connected to the buzzer.