CN204922159U - Valve controlling means - Google Patents
Valve controlling means Download PDFInfo
- Publication number
- CN204922159U CN204922159U CN201520716713.8U CN201520716713U CN204922159U CN 204922159 U CN204922159 U CN 204922159U CN 201520716713 U CN201520716713 U CN 201520716713U CN 204922159 U CN204922159 U CN 204922159U
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- motor
- valve
- control circuit
- swing
- movable contact
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Abstract
The utility model provides a valve controlling means belongs to the mechanical equipment field, including the control unit and operational unit, the control unit includes first control circuit, the 2nd control circuit, swing piece and support piece, operational unit includes the motor, is used for to start the operating circuit of motor and be used for closing and opening the motion of valve, first control circuit is through control the swing control of swing piece operational unit closes the valve, the 2nd control circuit is through control the swing control of swing piece operational unit opens the valve, the control unit is still including being used for the messenger a swing recovering initial position's return mechanism. Through such design for can in time close the valve when power station breaks down, shorten the reaction time of artifical rotation valve, better guarantee the safety of power station equipment, reduce the emergence probability of dangerous accident.
Description
Technical field
The utility model relates to technical field of mechanical equipment, in particular to a kind of valve control device.
Background technique
Valve, as the controlling component in a kind of fluid delivery system, is widely used in every field.For water power plant, because its head is high, volume is large, and consequence of meeting accident is quite serious, usually arranges valve in the front end and back end of pressure piping, can throttle down when accidents happened for hydroelectric station operation, to facilitate emergency repair.But, what nowadays most of water power plant adopted is old-fashioned manual rotation's valve, this valve twisting needs very large moment, especially for high head hydroelectric power plant, a people is often difficult to twisting, usually needs two to three people, and during hydroelectric station operation fault, the time needed to the task of throttle down of having sent someone again from the reception and registration being found to order of problem is longer, and in this period of reaction time, probably the equipment in water power plant because of accident fault, more dangerous disaster can even occur.
Model utility content
The purpose of this utility model is to provide a kind of valve control device, to improve the problems referred to above.
The utility model is achieved in that
A kind of valve control device, comprises control unit and operating unit;
Described control unit comprises first control circuit, second control circuit, swing part and supporting element, described swing part is flexibly connected with described supporting element, described first control circuit by control described swing part weave control described in operating unit throttle down, described second control circuit is by operating unit Open valve described in the weave control that controls described swing part, and described control unit also comprises for making described swing part recover the return mechanism of initial position;
Described operating unit comprise motor, for start described motor working circuit and for closing and the motion of Open valve, described motor is connected with one end of described swing part, described motor is communicated with by the swing of described swing part or is disconnected described working circuit, and described motion is connected with described motor.
By above-mentioned design, making can by the timely throttle down of control unit control operation unit when breaking down in water power plant, shorten the reaction time of manual rotation's valve, save manpower, also better ensured the safety of equipment for hydroelectric station simultaneously, reduce the probability had an accident, after trouble shooting, open valve by control unit control operation unit and water power plant is normally worked.
Further, described first control circuit comprises the first electromagnetic core and the first coil, described First Line snare is on described first electromagnetic core, described second control circuit comprises the second electromagnetic core and the second coil, described second coil is placed on described second electromagnetic core, described swing part comprises swing cross bar, described swing cross bar is provided with the first armature for being connected with described first electromagnetic core and the second armature for being connected with described second electromagnetic core.
After first control circuit is communicated with, first armature drives and swings cross bar generation swing under the attraction of electromagnetic force, after second control circuit is communicated with, second armature drives and swings cross bar generation swing under the attraction of electromagnetic force, the swing swinging cross bar drives again the first movable contact swing with the second movable contact thus be communicated with working circuit, the benefit of such design is to realize simply, and reliability is strong.
Further, described working circuit comprises for starting the first working circuit of described motor rotating forward and the second working circuit for starting described motor reversal, described motor drives described motion throttle down when described first working circuit is communicated with, and described motor drives described motion Open valve when described second working circuit is communicated with.
Working circuit is used for separately designing according to throttle down and Open valve two kinds, make when breaking down in water power plant, can more reliably it be made to rotate forward to drive described motion throttle down by corresponding first working circuit starting electrical machinery timely, after trouble shooting, can more reliably it be made to reverse to drive described motion Open valve by corresponding second working circuit starting electrical machinery timely.
Further, described first working circuit also comprises the first protective resistance for connecting with described motor, and described second working circuit also comprises the second protective resistance for connecting with described motor.
Adopt the benefit of protective resistance to be to protect working circuit, thus protection motor, extend motor working life, cause electric current in motor excessive after avoiding working circuit to connect, burn out motor.
Further, described control unit also comprises the first movable contact, second movable contact and collets, connected by described collets between described first movable contact and described second movable contact, described collets are connected with one end of described swing part, described motor is connected with described first movable contact and described second movable contact, described first working circuit also comprises the first stationary contact matched with described first movable contact and the second stationary contact matched with described second movable contact, described second working circuit also comprises the 3rd stationary contact matched with described first movable contact and the 4th stationary contact matched with described second movable contact.
By collets, the benefit that the first movable contact and the second movable contact couple together is to strengthen the first movable contact and the connection reliability between the second movable contact and swing part, the benefit of design stationary contact is the connection being convenient to working circuit, improves operability and reliability.
Further, described first control circuit also comprises the first thermistor and the first switch, described first switch is used for being communicated with or disconnecting described first control circuit, described first thermistor is connected with described first switch, described second control circuit also comprises the second thermistor and second switch, described second switch is used for being communicated with or disconnecting described second control circuit, described second thermistor is connected with described second switch, together with described first thermistor and described second thermistor are all placed in described motor.
The benefit designing the first switch and second switch is the operation being convenient to water power plant staff, the benefit designing the first thermistor and the second thermistor is to have worked as valve closing or opened rear motor to be obstructed and can not to rotate further, now electric energy conversion is heat energy, motor starts heating, thermistor increases gradually by thermal resistor, the electric current of control circuit diminishes gradually, when little to a certain extent after, swing part recovers normal position under the effect of return mechanism, thus disconnection working circuit, motor quits work.
Further, described first control circuit also comprises the first voltmeter, and described first voltmeter is in parallel with described first thermistor, and described second control circuit also comprises the second voltmeter, and described second voltmeter is in parallel with described second thermistor.
If the first voltmeter reaches maximum tabular value after working circuit disconnects, then remind staff to be disconnected by the first switch, if the second voltmeter reaches maximum tabular value after working circuit disconnects, then remind staff to be disconnected by second switch.
Further, described motion comprises rotating shaft, runner, running shaft core and the card wheel for being stuck in valve openings place, described runner is connected with described motor by described rotating shaft, and described running shaft core is flexibly connected with described runner, and described card wheel is sheathed on described running shaft core.
The benefit of such design is, when when running shaft core causes throttle down owing to wearing and tearing after a long time use, sealing is bad, the running shaft core that can more renew, so also extends the working life of valve control equipment, simultaneously easy to process, for industrial production provides convenient.
Further, described runner and described running shaft core are threaded connection, and described runner madial wall is provided with internal thread, and the upper end of described running shaft core is provided with the outside thread matched with described internal thread.
The benefit be threaded connection is that structure is simple, easy to process, the strong and easy accessibility of reliability.
Further, described swing part is that hard material is made and is flexibly connected with described supporting element by articulated elements, and described return mechanism is elastic component, and described elastic component connects one end of described swing part and the base of described supporting element.
The advantage that swing part adopts hard material to make is that can better drive the first movable contact and the second movable contact to produce swings when swing part produces and swings, improve reliability, be easy to installing/dismounting by articulated elements and supporting element firm and reliable connection, elastic component is adopted to be the simple and convenient processing of structure as the benefit of return mechanism, cheap and mechanical strength is large.
The control to operating unit is realized by control unit, making when breaking down in water power plant can throttle down in time, after trouble shooting, again opening valve by control unit control operation unit makes water power plant normally work, shorten the reaction time of manual rotation's valve, save manpower, also better ensured the safety of equipment for hydroelectric station simultaneously, reduce the probability had an accident.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The water power plant valve chamber plane structure schematic diagram that Fig. 1 provides for the utility model embodiment;
The circuit connection structure schematic diagram that Fig. 2 provides for the utility model embodiment.
Reference character:
Motor 101; First electromagnet 102; First coil 103; Second electromagnet 104; Second coil 105; Valve 106; First armature 107; Second armature 108; Supporting element 109; Swing cross bar 1091; First thermistor 110; First switch 111; Second thermistor 112; Second switch 113; First voltmeter 114; Second voltmeter 115; Rotating shaft 116; Runner 117; Running shaft core 118; Card wheel 119; First protective resistance 120; Second protective resistance 121; First movable contact 122; Second movable contact 123; Collets 124; Motor base 125; Pressure piping 126.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and show in usual accompanying drawing herein can be arranged with various different configuration and design.
Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this model utility product orientation of usually putting or position relationship when using, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Refer to Fig. 1 and Fig. 2, a kind of valve control device that the present embodiment provides, comprise control unit and operating unit, described control unit comprises first control circuit, second control circuit, swing part and supporting element 109, swing part is flexibly connected with supporting element 109, first control circuit carrys out control operation unit throttle down 106 by the swing controlling described swing part, described valve 106 is positioned on pressure piping 126, second control circuit carrys out control operation unit throttle down 106 by the swing controlling described swing part, described control unit is also provided with the return mechanism for making described swing part recover initial position, described operating unit comprises motor 101, for the working circuit of starting electrical machinery 101 and for closing and the motion of Open valve 106, described motor 101 is fixedly mounted on motor base 125, described motor 101 is connected with one end of swing part and is communicated with by the swing of swing part or disconnects described working circuit, described motion is connected with described motor, after working circuit is communicated with, motor 101 is activated, and described motion is closed or Open valve 106 under the drive of motor 101.
Preferably, in the present embodiment, the first coil 103 that described first control circuit comprises the first electromagnet 102 and is set on described first electromagnet 102, the second coil 105 that described second control circuit comprises the second electromagnet 104 and is set on described second electromagnet 104, described swing part comprises swing cross bar 1091, described swing cross bar 1091 is provided with the first armature 107 and the second armature 108, described supporting element 109 is made up of symmetrically arranged two cross bars and the vertical bar that connects described two cross bars, described first electromagnet 102 is fixedly installed on the upper end cross bar of described supporting element 109, described second electromagnet 104 is fixedly installed on the lower end cross bar of described supporting element 109 and symmetrical with described first electromagnet about 102, one end of described swing cross bar 1091 is between described first electromagnet 102 and described second electromagnet 104, the other end of described swing cross bar 1091 is flexibly connected by articulated elements with the vertical bar of described supporting element 109, described first armature 107 is positioned at described swing cross bar 1091 near the side of described first electromagnet 102 and immediately below described first electromagnet 102, described second armature 108 is positioned at described swing cross bar 1091 near the side of described second electromagnet 104 and directly over described second electromagnet 104.
Preferably, in the present embodiment, described working circuit comprises the first working circuit and the second working circuit, described first working circuit rotates forward for starting described motor 101, described motor 101 rotates forward and drives described motion throttle down 106, described second working circuit reverses for starting described motor 101, drives described motion Open valve 106 after described motor 101 reverses.
Preferably, in the present embodiment, described first control circuit is also provided with the first thermistor 110 and the first switch 111, described first switch 111 is for being communicated with or disconnecting described first control circuit, described first thermistor 110 is connected with described first switch 111, described second control circuit is also provided with the second thermistor 112 and second switch 113, described second switch is used for being communicated with or disconnecting described second control circuit, described second thermistor 112 is connected with described second switch 113, together with described first thermistor 110 and described second thermistor 112 are all placed in described motor 101.
After breaking down in water power plant, closed described first switch 111, described first control circuit is communicated with, now described first armature 107 drives described swing cross bar 1091 upwards to swing under the attraction of electromagnetic force, described motor 101 is communicated with described first working circuit under the drive of described swing cross bar 1091, described motor 101 is series in described first working circuit, described motor 101 starts to rotate forward and drives described motion throttle down 106, after valve 106 is closed completely, described motor 101 is obstructed and no longer rotates and start heating, described first thermistor 110 of now putting together with described motor 101 increases by thermal resistor, when causing the electric current in described first control circuit enough little after resistance increases to certain value, thus the electromagnetic attraction that described first armature 107 is subject to also become enough little, now described return mechanism drives described swing cross bar 1091 to get back to initial position, described first working circuit disconnects, described motor 101 quits work, staff is being checked through after valve 106 closes completely, described first switch can be disconnected, when after trouble shooting, close described second switch 113, described second control circuit is communicated with, now described second armature 108 drives described swing cross bar 1091 to lower swing under the attraction of electromagnetic force, described motor 101 is communicated with described second working circuit under the drive of described swing cross bar 1091, described motor 101 is series in described second working circuit, described motor 101 starts to reverse and drives described motion Open valve 106, after valve 106 is opened completely, described motor 101 is obstructed and no longer rotates and start heating, second thermistor 112 of putting together with described motor 101 increases by thermal resistor, when causing the electric current in described second control circuit enough little after resistance reaches certain value, thus the electromagnetic attraction that described second armature 108 is subject to also become enough little, now described return mechanism drives described swing cross bar 1091 to get back to initial position, described second working circuit disconnects, described motor 101 quits work, staff is being checked through after valve 106 closes completely, described second switch 113 can be disconnected.
Further, described first control circuit is also provided with the first voltmeter 114, described first voltmeter 114 is in parallel with described first thermistor 110, and described second control circuit is also provided with the second voltmeter 115, and described second voltmeter 115 is in parallel with described second thermistor 112.
After valve 106 is closed completely, described motor 101 is obstructed and no longer rotates and start heating, described first thermistor 110 of now putting together with described motor 101 increases by thermal resistor, when causing the electric current in described first control circuit enough little after resistance increases to certain value, thus the electromagnetic attraction that described first armature 107 is subject to also become enough little, now described return mechanism drives described swing cross bar 1091 to get back to initial position, described first working circuit disconnects, described motor 101 quits work, described first voltmeter 114 tabular value in parallel with described first thermistor 110 reaches maximum simultaneously, whether staff just can reach maximum tabular value according to the tabular value of described first voltmeter 114 determines whether disconnecting described first switch 111, then represent that when tabular value reaches maximum valve 106 is closed completely, described first switch 111 can be disconnected, after valve 106 is opened completely, described motor 101 is obstructed and no longer rotates and start heating, second thermistor 112 of putting together with described motor 101 increases by thermal resistor, when causing the electric current in described second control circuit enough little after resistance reaches certain value, thus the electromagnetic attraction that described second armature 108 is subject to also become enough little, now described return mechanism drives described swing cross bar 1091 to get back to initial position, described second working circuit disconnects, described motor 101 quits work, the tabular value of described second voltmeter 115 simultaneously in parallel with described second thermistor 112 reaches maximum, whether staff just can reach maximum value according to the tabular value of described second voltmeter 115 determines whether disconnecting described second switch 113, represent that when tabular value reaches maximum valve 106 is opened completely, described second switch 113 can be disconnected.
Preferably, in the present embodiment, described motion comprises rotating shaft 116, runner 117, running shaft core 118 and the card wheel 119 for being stuck in valve 106 opening, described runner 117 is connected with described motor 101 by described rotating shaft 116, described running shaft core 118 is flexibly connected by screw thread with described runner 117, described card wheel 119 is sheathed on described running shaft core 118, the madial wall of described runner 117 is provided with internal thread, and the upper end of described runner 117 is provided with the outside thread matched with described internal thread.
When described motor 101 rotates forward, described runner 117 is driven to rotate forward by described rotating shaft 116, because described runner 117 is threaded with described running shaft core 118, when described runner 117 rotates forward, described running shaft core 118 moves downward with throttle down 106 relative to described runner 117, after valve 106 is closed completely, described card wheel 119 is just stuck in described valve 106 opening and rotates further to stop described motor 101; When described motor 101 reverses, described runner 117 is driven to reverse by described rotating shaft 116, because described runner 117 is threaded with described running shaft core 118, when described runner 117 reverses, described running shaft core 118 moves upward with Open valve 106 relative to described runner 117, after valve 106 is opened completely, described card wheel 119 is stuck in the opening of described runner 117 to stop the further rotation of described motor 101.
Preferably; in the present embodiment; the first protective resistance 120 is provided with in described first working circuit; described first protective resistance 120 connects to protect described motor 101 with described motor 101 when described first working circuit is communicated with; be provided with the second protective resistance 121 in described second working circuit, described second protective resistance 121 connects to protect described motor 101 with described motor 101 when described second working circuit is communicated with.
Preferably, in the present embodiment, described, described control unit also comprises the first movable contact 122, second movable contact 123 and collets 124, connected by described collets 124 between described first movable contact 122 and described second movable contact 123, described collets 124 are connected with one end of described swing cross bar 1091, described motor 101 is connected with described first movable contact 122 and described second movable contact 123, described first working circuit also comprises the first stationary contact matched with described first movable contact 122 and the second stationary contact matched with described second movable contact 123, described second working circuit also comprises the 3rd stationary contact matched with described first movable contact 122 and the 4th stationary contact matched with described second movable contact 123.
Preferably, in the present embodiment, described return mechanism is spring, and described spring connects one end of described swing cross bar 1091 and the lower end cross bar of described supporting element 109.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a valve control device, is characterized in that, comprises control unit and operating unit;
Described control unit comprises first control circuit, second control circuit, swing part and supporting element, described swing part is flexibly connected with described supporting element, described first control circuit by control described swing part weave control described in operating unit throttle down, described second control circuit is by operating unit Open valve described in the weave control that controls described swing part, and described control unit also comprises for making described swing part recover the return mechanism of initial position;
Described operating unit comprise motor, for start described motor working circuit and for closing and the motion of Open valve, described motor is connected with one end of described swing part, described motor is communicated with by the swing of described swing part or is disconnected described working circuit, and described motion is connected with described motor.
2. valve control device according to claim 1, it is characterized in that, described first control circuit comprises the first electromagnetic core and the first coil, described First Line snare is on described first electromagnetic core, described second control circuit comprises the second electromagnetic core and the second coil, described second coil is placed on described second electromagnetic core, described swing part comprises swing cross bar, described swing cross bar is provided with the first armature for being connected with described first electromagnetic core and the second armature for being connected with described second electromagnetic core.
3. valve control device according to claim 1, it is characterized in that, described working circuit comprises for starting the first working circuit of described motor rotating forward and the second working circuit for starting described motor reversal, described motor drives described motion throttle down when described first working circuit is communicated with, and described motor drives described motion Open valve when described second working circuit is communicated with.
4. valve control device according to claim 3, is characterized in that, described first working circuit also comprises the first protective resistance for connecting with described motor, and described second working circuit also comprises the second protective resistance for connecting with described motor.
5. valve control device according to claim 3, it is characterized in that, described control unit also comprises the first movable contact, second movable contact and collets, connected by described collets between described first movable contact and described second movable contact, described collets are connected with one end of described swing part, described motor is connected with described first movable contact and described second movable contact, described first working circuit also comprises the first stationary contact matched with described first movable contact and the second stationary contact matched with described second movable contact, described second working circuit also comprises the 3rd stationary contact matched with described first movable contact and the 4th stationary contact matched with described second movable contact.
6. the valve control device according to any one of claim 1 to 5, it is characterized in that, described first control circuit also comprises the first thermistor and the first switch, described first switch is used for being communicated with or disconnecting described first control circuit, described first thermistor is connected with described first switch, described second control circuit also comprises the second thermistor and second switch, described second switch is used for being communicated with or disconnecting described second control circuit, described second thermistor is connected with described second switch, together with described first thermistor and described second thermistor are all placed in described motor.
7. valve control device according to claim 6, it is characterized in that, described first control circuit also comprises the first voltmeter, described first voltmeter is in parallel with described first thermistor, described second control circuit also comprises the second voltmeter, and described second voltmeter is in parallel with described second thermistor.
8. valve control device according to claim 1, it is characterized in that, described motion comprises rotating shaft, runner, running shaft core and the card wheel for being stuck in valve openings place, described runner is connected with described motor by described rotating shaft, described running shaft core is flexibly connected with described runner, and described card wheel is sheathed on described running shaft core.
9. valve control device according to claim 8, is characterized in that, described runner and described running shaft core are threaded connection, and described runner madial wall is provided with internal thread, and the upper end of described running shaft core is provided with the outside thread matched with described internal thread.
10. valve control device according to claim 1, it is characterized in that, described swing part is that hard material is made and is flexibly connected with described supporting element by articulated elements, and described return mechanism is elastic component, and described elastic component connects one end of described swing part and the base of described supporting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716713.8U CN204922159U (en) | 2015-09-16 | 2015-09-16 | Valve controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716713.8U CN204922159U (en) | 2015-09-16 | 2015-09-16 | Valve controlling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922159U true CN204922159U (en) | 2015-12-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520716713.8U Expired - Fee Related CN204922159U (en) | 2015-09-16 | 2015-09-16 | Valve controlling means |
Country Status (1)
| Country | Link |
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| CN (1) | CN204922159U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976884A (en) * | 2016-10-24 | 2018-05-01 | 纳思达股份有限公司 | Image forming apparatus with a toner supply device |
| CN109519988A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of automatically cleaning range hood and its control method |
| CN109662612A (en) * | 2018-12-13 | 2019-04-23 | 广州市聚英电器实业有限公司 | A kind of electricity bread baker |
| CN112412619A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Frequency determination method and device |
| CN113273905A (en) * | 2020-02-20 | 2021-08-20 | 九阳股份有限公司 | Control method of food processing machine |
-
2015
- 2015-09-16 CN CN201520716713.8U patent/CN204922159U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976884A (en) * | 2016-10-24 | 2018-05-01 | 纳思达股份有限公司 | Image forming apparatus with a toner supply device |
| CN109519988A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of automatically cleaning range hood and its control method |
| CN109662612A (en) * | 2018-12-13 | 2019-04-23 | 广州市聚英电器实业有限公司 | A kind of electricity bread baker |
| CN112412619A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Frequency determination method and device |
| CN113273905A (en) * | 2020-02-20 | 2021-08-20 | 九阳股份有限公司 | Control method of food processing machine |
| CN113273905B (en) * | 2020-02-20 | 2022-11-04 | 九阳股份有限公司 | Control method of food processor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |