CN201814907U - DC frequency conversion nasal mucus suction device - Google Patents

Abstract

The utility model provides a direct current frequency conversion snivel suction means, it mainly can change the pressure and flow produced by the electromagnetic pumping, in order to accord with the requirement of snivel suction means, improve the pressure and flow of the snivel suction means taking the electromagnetic pumping as the power source and apt to take place too big or insufficient disadvantage in the well-known; the utility model discloses a snivel suction device, which comprises an electromagnetic pump, a suction device and a frequency conversion circuit; the frequency conversion circuit at least comprises an oscillation unit circuit, a bistable unit circuit and a push-pull unit circuit, wherein the power supply supplied to the electromagnetic pump is an alternating current power supply supplied to the electromagnetic pump by oscillating a direct current power supply through the frequency conversion circuit, and the oscillating frequency of the oscillation unit circuit is changed to change the speed of a rocker arm of the electromagnetic pump, the reciprocating oscillation frequency and the oscillation amplitude in unit time and relatively change the suction pressure and suction flow of the electromagnetic pump so as to meet the most appropriate pressure and flow required by the snivel suction device.

Description

DC frequency conversion nasal mucus suction device

technical field

The utility model provides a nasal mucus suction device, in particular to a direct current frequency conversion nasal mucus suction device. the

Background technique

Please refer to FIG. 1 to FIG. 7, which is an electromagnetic pump 20, also known as a rocker pump or a matrix pump. Based on the electromagnetic pump 20, it has light weight, low noise, low power consumption, and is not easy to generate high heat. 1. When the inlet and outlet pipelines are blocked, the short circuit of the electronic circuit will not occur. The No. 093217312 "Electric Nasal Aspirator for Easy Cleaning" filed by the designer in 1993 is based on the electromagnetic pump as the power source. The operating principle of the pump 20 is that an electromagnet device 27 is provided on one side, and a pump seat 21 is provided on the other side, and a stretchable elastic rubber cap 24 is respectively provided on the two outer sides of the pump seat 21. A rocker arm 25 is combined on the cap 24, and one end shaft of each rocker arm 25 is arranged on the outside of the pump base 21, and the other end is combined with a magnet 26, which is opposite to the electromagnet device 27 and separated from a gap. The compartment is divided into two air chambers 211 and 212. The first air chamber 211 communicates with the two suction connection pipes 22, and the second air chamber 212 communicates with the discharge connection pipe 23. Please refer to Fig. 2 and 3 again, the electromagnet device 27. When energized, the magnetism of the magnetic poles 271 on both sides and the magnetic properties of the middle magnetic pole 272 alternate repeatedly with N poles and S poles, and the outer surfaces of the two magnets 26 opposite to them are set as N poles, and the inner surfaces are set as S poles. , as shown in Figure 2, when the magnetism of the magnetic poles 271 on both sides of the electromagnet device 27 is switched to the N pole, the magnetism of the middle magnetic pole 272 is switched to the S pole, and the two magnets 26 are then driven by the middle magnetic pole 272 of the electromagnet device 27. The S poles of the electromagnet device 27 are magnetically attracted and simultaneously repelled by the N poles of the magnetic poles 271 on both sides to drive the rocker arm 25 to swing toward the middle together. When it is the S pole, the magnetism of the middle magnetic pole 271 is switched to N pole, and the two magnets 26 are then repelled by the N pole of the middle magnetic pole 272 of the electromagnet device 27 and magnetically attracted by the S poles of the magnetic poles 271 on both sides simultaneously. Drive the rocker arms 25 to swing outward together, the speed, number of times and swing amplitude of the two rocker arms 25 reciprocating swings per unit time have a joint relationship with the predetermined frequency of the supplied power supply, and the swing speed of the two rocker arms 25 1. The number of reciprocating swings per unit time and the swing amplitude are related to the pressure and flow during suction; please refer to Figure 4 to Figure 7. When the two rocker arms 25 swing outward, they can drive the rubber The cap 24 stretches outward, and the two first check valves 241 located between the pump base 21 and the rubber cap 24 are in an open state, allowing the fluid to enter the first air chamber 211 from the suction connection pipe 22 outside the pump base 21, and then toss into it. In the two rubber caps 24, the fluid entering the two rubber caps 24 is restricted by the two second check valves 242 (the two second check valves 242 are closed), and cannot enter the second air chamber 212; When the two rocker arms 25 sway towards the middle, the two rubber caps 24 can be compressed, the two second check valves 242 are opened, the first check valve 241 is closed, and the fluid entering the two rubber caps 24 is released. It can only flow to the second air chamber 212 without reverse flow to the first air chamber 211, and the fluid flowing to the second air chamber 212 is rolled again Transfer from the two discharge connecting pipes 23 to the outside of the pump base 21. With this design, the pump base 21 can absorb fluid from the suction connecting pipe 22 and discharge from the discharge connecting pipe 23, so as to achieve the function of transmitting fluid. Please refer to As shown in FIG. 8 , if its suction connection 22 is connected with an aspirator 80 , it can be used to suck nasal mucus. the

The power consumption characteristic of this electromagnetic pump 20 is that it must be supplied with alternating current, and its two rocker arms 25 can swing back and forth, and are limited by the household power supplied by various countries in the world, which is nothing more than a 110V or 220V power supply, such as Taiwan The supplied power is a 110V single-phase power supply, and the frequency in the voltage is fixed at 60Hz. Therefore, when using 110V, 60Hz alternating current as the power supply of the electromagnetic pump 20, it is limited by the strength of the magnetic field generated by the electromagnet device 27. , the length and width of the rocker arm 25, the magnetic strength of the magnet 26, the elasticity of the rubber cap 24 and other conditions, the swing speed of the rocker arm 25 of the electromagnetic pump 20, the number of swings per unit time, and the size of the swing etc. are constant and cannot be adjusted, that is, the suction pressure, suction flow or discharge pressure, and discharge flow of the electromagnetic pump 20 cannot be adjusted voluntarily according to the required pressure or flow, and when it is applied to sucking nasal mucus, its If the suction force is too large, the nasal mucous membrane may be injured; if the suction force is too small, it will be impossible to absorb sticky nasal mucus or booger; Based on the shortcomings of the above-mentioned electromagnetic pump, which must be powered by 110V AC power supply, as the power source of the nasal mucus suction device, the designer is based on years of research and development experience in electromagnetic pumps, devoted himself to research, and continuously The design is improved, and the sample test is made, and after repeated tests, further improvements are made, and finally this utility model is born. the

Utility model content

The main purpose of this utility model is to provide a direct current variable-frequency nasal mucus suction device. With the setting of a frequency conversion circuit, the DC power supply can be oscillated into an AC power supply for the electromagnetic pump of the nasal mucus suction device. The oscillation frequency of the frequency conversion circuit High and low, to adjust the suction pressure and suction flow of the electromagnetic pump, so that the nasal mucus suction device has the most appropriate suction pressure and flow. the

The secondary purpose of this utility model is to make the selection of the power source used by the nasal mucus suction device more extensive, which includes DC power supplies provided by products such as batteries, automobile cigarette lighters, and transformer rectifiers, so that the nasal mucus suction device can be used in any place. Appropriate power usage can be selected. the

Another purpose of this utility model is to connect a modulating circuit to the frequency conversion circuit, activate the modulating circuit, and control only the speed at which the rocker arm swings outwards, thereby increasing the suction pressure of the electromagnetic pump, so that the nasal mucus suction device When sucking viscous nasal mucus or booger, it can be sucked smoothly. the

In order to achieve the above-mentioned purpose, the technical solution of the present utility model is: a direct-current variable-frequency nasal mucus suction device, which includes an electromagnetic pump, a suction device, and a frequency conversion circuit; one side of the electromagnetic pump is provided with an electromagnet device, The other side is provided with a pump seat, and at least one outer side of the pump seat is provided with a stretchable elastic rubber cap, and a rocker arm is combined on the rubber cap, one end shaft of the rocker arm is arranged on the outside of the pump seat, and the other end Combining a magnet and facing the electromagnet device with a gap, the pump base is divided into two air chambers, one of which communicates with one to several suction pipes, and the other air chamber communicates with one to several discharge pipes, each There is a check valve between the air chamber and the opposite rubber cap. The electromagnetic pump can suck the fluid into the air chamber from the suction nozzle through the reciprocating swing of the rocker arm, and then discharge it from the discharge nozzle; the suction device is connected to the electromagnetic pump. The suction connection of the pump; the frequency conversion circuit is used to drive the electromagnetic pump, which at least includes an oscillation unit circuit, a bistable unit circuit, and a push-pull unit circuit; the oscillation unit circuit can oscillate the input DC power into a Single-phase oscillating signal; the bistable unit circuit can split the unidirectional oscillating signal into an N-pole excitation signal and an S-pole excitation signal, so that the magnetic properties of the magnetic poles on both sides of the electromagnet device and the magnetic properties of the middle magnetic pole are determined by the N-pole , S poles are alternately switched, and the same-sex repulsion and opposite-sex attraction interactions occur with the magnets on the rocker arm, which drives the rocker arm to swing back and forth; the push-pull unit circuit can combine the power of the N-pole excitation signal and an S-pole excitation signal It is amplified and sent to the electromagnetic pump. the

The frequency conversion circuit includes a modulation unit circuit, which can generate a single-phase oscillation signal to mix with the N pole excitation signal and the S pole excitation signal generated by the bistable unit circuit, so as to increase the N pole excitation signal And at the same time relatively offset the excitation signal of the S pole, so that the magnetic strength of the N pole of the electromagnet device increases. the

The frequency conversion circuit includes a step-down unit circuit. The step-down unit circuit lowers the DC power input to the frequency conversion circuit to a lower voltage and supplies it to each unit circuit as the working voltage of its electronic components.

The DC power is supplied by a transformer rectifier. the

The DC power is supplied by a storage battery. the

The direct current power supply is supplied by the cigarette lighter seat on the car, and is connected with the nasal mucus suction device with the special power cord of the cigarette lighter seat. the

The oscillating unit circuit is a Schmitt oscillating circuit. the

The electromagnetic pump can be accommodated in a base body, and the base body is provided with at least one negative pressure connector and a positive pressure connector, and a negative pressure pipeline is connected between the negative pressure connector and the suction nozzle of the electromagnetic pump, and the positive pressure connector and The discharge connection of the electromagnetic pump is connected to a positive pressure pipeline, and the nasal aspirator is connected to the negative pressure connector. the

The magnetism on the outer surface is an N pole, and the inner surface is an S pole. the

The two air chambers are arranged in an upper and lower relationship. the

The oscillating unit circuit can be connected to a knob on the base body, and the oscillating frequency can be started and adjusted by the knob. the

The electromagnetic pump can be accommodated in a base body, and the base body is provided with at least one negative pressure connector and a positive pressure connector, and a negative pressure pipeline is connected between the negative pressure connector and the suction nozzle of the electromagnetic pump, and the positive pressure connector and The discharge connection of the electromagnetic pump is connected to a positive pressure pipeline, and the nasal aspirator is connected to the negative pressure connector. the

The modulating unit circuit can be connected to a knob on the base body, and the magnitude of the single-phase oscillation signal generated by the modulating unit circuit can be activated and adjusted by the knob. the

The modulating unit circuit can be connected to a button group of the base body, and the button group has one to several buttons, and the magnitude of the single-phase oscillation signal generated by the modulating unit circuit can be activated and adjusted by the number of buttons. the

The aspirator at least includes a suction head and a mucus collection bottle. the

The utility model adopts the above-mentioned structure. By setting the frequency conversion circuit, the rocker arm of the electromagnetic pump can be supplied with a DC power supply to swing back and forth, and by adjusting the oscillation frequency of the oscillation unit circuit, the N pole, The switching frequency of the S pole magnetism can change the swing speed of the rocker arm of the electromagnetic pump, the number of reciprocating swings per unit time, and the size of the swing amplitude, thereby changing the suction pressure, suction flow or discharge pressure, and discharge flow of the electromagnetic pump. Conform to the most appropriate pressure and flow required by the nasal mucus suction device, so that the suction device can work smoothly; and the frequency conversion circuit can also include a modulation unit circuit, which can increase the strength and speed of the outward expansion of the rocker arm and relatively reduce the outward expansion of the rocker arm. The strength and speed of internal contraction can only increase the suction pressure of the electromagnetic pump. This utility model improves the disadvantages of excessive or insufficient pressure and flow of the conventional nasal mucus suction device that uses the electromagnetic pump as the power source. . the

Description of drawings

Figure 1 is a schematic diagram of a conventional electromagnetic pump;

Figure 2 is a schematic diagram of conventional electromagnetic pump rocker retraction;

Figure 3 is a schematic diagram of a conventional electromagnetic pump when the rocker arm is stretched out;

Figure 4 is a schematic cross-sectional view of C-C of the conventional electromagnetic pump in Figure 1, showing the flow direction of the fluid being sucked by the electromagnetic pump;

Figure 5 is a schematic cross-sectional view of A-A of the conventional electromagnetic pump in Figure 1, showing the flow direction of the fluid being sucked by the electromagnetic pump;

Figure 6 is a schematic cross-sectional view of B-B of the conventional electromagnetic pump in Figure 1, showing the flow direction of the fluid discharged by the electromagnetic pump;

Figure 7 is a schematic cross-sectional view of C-C of the conventional electromagnetic pump in Figure 1, showing the flow direction of the fluid being discharged by the electromagnetic pump;

Fig. 8 is the three-dimensional schematic view of the preferred embodiment of the utility model;

Fig. 9 is the block flow chart of frequency conversion circuit of preferred embodiment of the utility model;

Fig. 10 is a schematic diagram of the rocker arm swing of the electromagnetic pump of a preferred embodiment of the present invention (used to represent the highest swing frequency of the rocker arm and the minimum width of the swing);

Figure 11 is a schematic diagram of the rocker arm swing of the electromagnetic pump of the preferred embodiment of the present invention (used to indicate that the swing frequency of the rocker arm is medium, and the swing amplitude is also located at a medium width);

Fig. 12 is the schematic diagram of the rocker arm swing of the electromagnetic pump of the preferred embodiment of the present utility model (used to indicate the rocker arm swing frequency is the lowest, the swing maximum width schematic);

Fig. 13 is the coordinate relationship diagram of the oscillation frequency and the suction pressure of the preferred embodiment of the present utility model;

Fig. 14 is the coordinate relationship diagram of the oscillation frequency and the suction flow of the preferred embodiment of the present utility model;

Fig. 15 is the block flow diagram of the second embodiment of the utility model frequency conversion circuit;

Fig. 16 is a schematic diagram of the change of the rocking arm shrinking inwards when starting the modulation circuit of the frequency conversion circuit of the present utility model;

Figure 17 is a schematic diagram of the change of the outward expansion of the rocker arm when starting the modulation circuit of the frequency conversion circuit of the preferred embodiment of the present invention;

Figure 18 is a schematic diagram of the electromagnetic pump of the preferred embodiment of the present invention accommodated in the seat body;

Figure 19 is a schematic diagram of the modulation circuit connected to the outer knob in a preferred embodiment of the present invention;

Figure 20 is a schematic diagram of the modulation circuit connected to the outer key group in a preferred embodiment of the utility model;

Figure 21 is a schematic diagram of a transformer rectifier;

Figure 22 is a schematic diagram of the storage battery;

Fig. 23 is a schematic diagram of a dedicated power cord for a car cigarette lighter. the

Description of main component symbols

20 Electromagnetic pump 21 Pump base 211 First air chamber

212 Second air chamber 22 Suction connection 23 Discharge connection

24 rubber cap 241 first check valve 242 second check valve

25 rocker arm 26 magnet 27 electromagnet device

271 Magnetic poles on both sides 272 Middle magnetic poles 28 Circuit boards

30-seat body 31 Negative pressure pipeline 32 Positive pressure pipeline

33 Negative pressure connector 34 Positive pressure connector 37 Knob

38 button groups 381, 382, 383 buttons

39 socket 40 frequency conversion circuit 41 external DC power supply

42 Step-down unit circuit 43 Oscillation unit circuit 44 Bistable unit circuit

45 modulation unit circuit 46 push-pull unit circuit 50 transformer rectifier

60 storage battery 70 special power cord for cigarette lighter 80 nasal aspirator

81 suction heads 82 nasal mucus collection bottle

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawing. the

Please refer to Fig. 8, 9 and cooperate to refer to Fig. 1, Fig. 4 to Fig. 7, the nasal mucus suction device of the present embodiment at least includes an electromagnetic pump 20, a suction device 80, a frequency conversion circuit 40, and the frequency conversion unit 40 is located on a circuit board 28 (as shown in Figure 18);

One side of this electromagnetic pump 20 is provided with an electromagnet device 27 that is wound around a coil, and the other side is provided with a pump base 21, and the magnetic pole 272 width in the middle of this electromagnet device 27 is greater than the width of the outer magnetic pole 271; The two outer sides are respectively provided with a stretchable elastic rubber cap 24, and each rubber cap is combined with a rocker arm 25. One end shaft of each rocker arm 25 is arranged on the outside of the pump base 21, and the other end is combined with a magnet 26 And apart from electromagnet device 27 with a gap, the pump base 21 is divided into two air chambers 211, 212, the first air chamber 211 is located at the top, and the second air chamber 212 is located at the bottom. In this embodiment Although the first and second air chambers 211, 212 are set as the upper and lower relationship, it can also be set as the configuration of the front and rear relationship. One of the air chambers 211 communicates with one to several suction nozzles 22, and the other air chamber 212 It communicates with one or several discharge connecting pipes 23, and a check valve 241, 242 is respectively provided between the two sides of each air chamber 211, 212 and the opposite rubber cap 24, and the electromagnetic pump 20 can move The fluid is sucked into the air chamber from the suction connection 22, and then discharged from the discharge connection 23; the operating principle of the electromagnetic pump 20 has been described in Figures 2 to 7, and will not be repeated;

The aspirator 80 is connected to the suction nozzle 22 of the electromagnetic pump 20 to absorb nasal mucus. The aspirator 80 has a suction head 81 that can be inserted into the nasal cavity and a mucus collection bottle 82; One of the new embodiments, the extractor of the present utility model is not limited thereto;

The frequency conversion circuit 40 includes a step-down unit circuit 42, an oscillation unit circuit 43, a bistable unit circuit 44, and a push-pull unit circuit 46; the step-down unit circuit 42 steps down the 12V direct current input by the external DC power supply 41 The DC power supply of 5V is supplied to each unit circuit and used as the working voltage of its electronic components, and it also has the effect of voltage stabilization; the oscillation unit circuit 43 can be a Schmidt unit oscillation circuit, which can convert 12V DC The power supply oscillates a single-phase oscillation signal output, which can adjust its oscillation frequency between 43Hz and 66Hz. Please refer to Figure 19. The oscillation unit circuit 43 can be connected to the knob 37 of a main body 30, and can be used. Knob starts and adjusts the height of the oscillation frequency; the bistable unit circuit 44 divides the single-phase oscillation signal into an N pole excitation signal and an S pole excitation signal, so that the magnetism of the magnetic poles 271 on both sides of the electromagnet device 27 and the middle The magnetism of the magnetic pole 272 can be continuously alternately switched to N pole or S pole, and produces the interaction between the same-sex repulsion and opposite-sex attraction with the two magnets 26, and at the same time, the rocker arm 25 is continuously reciprocated to drive the corresponding rubber cap 24 Expansion and contraction; the push-pull unit circuit 46 can amplify the N-pole excitation signal and the S-pole excitation signal, so that the swing arm 25 of the electromagnetic pump 20 can swing effectively, thereby increasing the power of the electromagnetic pump 20 . the

Please refer to FIGS. 10 and 11 again, when the oscillation frequency of the oscillation unit circuit 43 in the frequency conversion circuit 40 of the present embodiment is adjusted higher, the N pole and S pole magnetic switching speed of the electromagnet device 27 is faster. That is, the speed and number of reciprocating swings of the rocker arm 25 per unit time are increased, and the swing width is reduced. For W1 shown in Figure 10, please refer to Figures 13 and 14. Fast and high times, that is, the number of suctions by the electromagnetic pump 20 in a unit time increases dramatically and the suction pressure (negative pressure) also increases, and because the width of each reciprocating swing of the rocker arm is small, the amount that can be sucked each time The flow rate is just less; when the oscillation frequency of the adjustment oscillation unit circuit 43 is reduced (43Hz), the speed of the N pole and S pole magnetic switching of the electromagnet device 27 is just slower, that is, the speed of the reciprocating swing of the rocking arm 25 per unit time , the number of times is reduced, and the swing width becomes larger, as shown in Figure 12 W3, the swing speed of the rocker arm 25 is reduced, which makes the suction pressure of the electromagnetic pump 20 drop, and because the swing width of the rocker arm 25 becomes larger, the electromagnetic The flow drawn by the pump 20 is greatly increased. By analogy, when the oscillation frequency of the oscillation unit circuit 43 is adjusted to be in the middle (55Hz), the speed, number of times, and swing width of the rocker arm in 25 units of reciprocating swing are all within the The intermediate value is W2 as shown in Figure 11. At this time, the suction pressure and suction flow of the electromagnetic pump 20 are in the state of medium pressure and medium flow; from the above description, it can be found that the electromagnetic pump 20 adjusts the oscillation unit circuit When the oscillation frequency of 43 is higher, the electromagnetic pump 20 can exhibit the characteristics of high suction pressure and low suction flow, and when the oscillation frequency of the oscillation unit circuit 43 is adjusted lower, the electromagnetic pump 20 can be presented with low The characteristics of suction pressure and high suction flow rate; and by virtue of the above-mentioned characteristics, when applying a nasal mucus suction device, for patients with a lot of nasal fluid, the vibration frequency of the electromagnetic pump 20 is adjusted to a low frequency mode, that is, low pressure and high flow rate The mode of nasal discharge can be easily absorbed. For patients with nasal pus or boogers, the vibration frequency must be adjusted to high frequency, that is, the mode of high pressure and low flow, so as to smoothly absorb nasal pus or The nose excrement is sucked smoothly, but patients who do not know that the nasal mucus suction device of this embodiment wants to suck nasal fluid or nasal pus. In order to avoid the situation of excessive suction pressure, the nasal mucus suction device of this embodiment leaves the factory. The unit circuit 43 can be set to low or medium frequency, so that the suction pressure mode of the nasal mucus suction device can be set to low pressure and high flow or medium pressure and medium flow. Users can adjust the suction pressure according to their own needs. the

Please refer to Fig. 15 again, which is another embodiment of the frequency conversion circuit 40 of the present invention, which adds a modulating unit circuit 45, which can generate a single-phase oscillation signal, and the single-phase The oscillation signal will be mixed with the N-pole excitation signal and the S-pole excitation signal generated by the bistable unit circuit 44 to enhance the N-pole excitation signal and cancel the S-pole excitation signal at the same time, or relatively enhance the S-pole excitation signal and simultaneously cancel the N-pole excitation signal. Pole excitation signal, that is, it can unilaterally enhance the magnetic strength of the electromagnet device 27 N pole or S pole, while offsetting the magnetic strength of the S pole or N pole, the modulation unit circuit 45 of the present embodiment is set to strengthen the electromagnet The magnetic strength of the N pole of the device 27 relatively offsets the magnetic strength of the S pole. Please refer to FIGS. 1. When the magnetic switching of the middle magnetic pole 272 is S pole, due to the magnetic configuration of the two magnets 26, the outer surface is set as the N pole, and the inner surface is set as the S pole. The magnetic force of the magnetic pump is relatively small, so that the speed and force of the rocker arm 25 swinging to the middle are relatively small, and when the discharge pressure and flow rate of the electromagnetic pump 20 are reflected, the discharge pressure and flow rate are small, please cooperate Referring to FIG. 17 , when the magnetic switching of the middle magnetic pole 272 of the electromagnet device 27 is N pole, and the magnetic switching of the magnetic poles 271 on both sides is S pole, and the N pole excitation signal is received by the mixing signal of the modulation unit circuit 45 increase effect, the magnetic intensity released by the N pole magnetic pole 272 in the middle of the electromagnet device 27 is stronger, and the magnet 26 is subjected to the mutual repulsion effect of the larger magnetic intensity of the N pole magnetic pole 272 in the middle of the electromagnet device 27, and the outward expansion speed of the rocking arm 25 and The strength is increased, and when the suction pressure and flow rate of the electromagnetic pump 20 are reflected, the suction pressure and flow rate both increase.

Therefore, when the modulating unit circuit 45 is activated, the outward expansion speed and strength of the rocker arm 25 are kept relatively large, while the speed and strength of the rocking arm 25 are kept relatively small when swinging in the middle. The setting of 45 is to enhance the suction pressure of the electromagnetic pump 20, so that when it is applied to the nasal mucus suction device, nasal pus or booger can be smoothly sucked. the

Please refer to Figure 18, the electromagnetic pump 20 and circuit board 28 of this embodiment can be accommodated in a body 30, please refer to Figures 19 and 20, the modulation unit circuit 45 can be connected to the seat The knob 37 or button group 38 of the body 30 can be used to start and adjust the magnitude of the single-phase oscillation signal generated by the modulation unit circuit 45 through the knob 37 or the number buttons 381, 282, and 383 of the button group 38; please continue to cooperate Referring to Fig. 18 to Fig. 20, the base body 30 is provided with at least one negative pressure connector 33 and one positive pressure connector 34, and a negative pressure pipeline 31 is connected between the negative pressure connector 33 and the suction connection pipe 22 of the electromagnetic pump 20, A positive pressure pipeline 32 is connected between the positive pressure connector 34 and the discharge connection pipe 23 of the electromagnetic pump 20, and the nasal aspirator 80 can be connected to the negative pressure connector 33, and the nasal mucus can be sucked when the magnetic pump 20 is activated. The outer surface of the body 30 is provided with a socket 39 for plugging in the transformer rectifier 50, the storage battery 60, and the power cord 70 dedicated to the cigarette lighter; in addition, please refer to Fig. 21 to Fig. 23 for the external DC power supply of this embodiment 41 includes a transformer rectifier 50, a storage battery 60, and a 12V DC power supply provided by the cigarette lighter seat in the car, and the power cord 70 dedicated to the cigarette lighter seat must be used to connect the utility model with the cigarette lighter seat of the car. No matter at home, on the car or in the countryside, you can choose the appropriate power supply for use, which really brings considerable convenience to users! the

To sum up, the utility model is deeply practical and progressive, and the above-mentioned embodiments are only for illustration, and the implementation of the utility model in the future is not limited thereto. All technical features of the utility model The improved implementation of all falls within the scope of protection of the present utility model. the

Claims (15)

1. the Snivel suction instrument of a DC frequency-changing is characterized in that: comprise an electromagnetic pump, an extractor, a frequency changer circuit;

One side of this electromagnetic pump is provided with an electromagnet apparatus, opposite side is provided with a pump seat, at least one outside of this pump seat is provided with a telescopic elasticity rubber medicated cap, on the rubber medicated cap again in conjunction with a rocking arm, one terminal shaft of this rocking arm is located at the pump seat outside, another end is combined with a Magnet and relative with electromagnet apparatus and apart from a gap, separate in this pump seat and be 2 air chambers, this wherein an air chamber and draw to take over to several and be communicated with, this another air chamber is communicated with to several discharge nozzles with one, each air chamber with respectively be provided with a non-return valve, the reciprocally swinging of this electromagnetic pump mat rocking arm between relative rubber medicated cap, fluid can be sucked in the air chamber from drawing to take over, self-discharging is taken over and is discharged again;

This extractor is connected in the absorption of electromagnetic pump and takes over;

This frequency changer circuit is in order to order about the electromagnetic pump start, and it comprises an oscillating unit circuit, a bistable unit circuit at least, recommends element circuit; This oscillating unit circuit can be a single-phase oscillation signal with the dc source vibration of input; This bistable unit circuit can be a N pole excitation signal and a S pole excitation signal with unidirectional oscillation signal phase-splitting, make the magnetic of polar magnetic in electromagnet apparatus both sides and consequent pole, switch extremely alternately with the N utmost point, S, with the reciprocal action that the Magnet generation same sex is repelled each other, there is a natural attraction between the sexes on the rocking arm, and drive the rocking arm reciprocally swinging; This is recommended element circuit and the power of a N pole excitation signal and a S pole excitation signal can be amplified and flow to electromagnetic pump again.

2. the Snivel suction instrument of DC frequency-changing as claimed in claim 1, it is characterized in that: this frequency changer circuit comprises a modulation element circuit, this modulation element circuit can produce N pole excitation signal, the S pole excitation signal smear of a single-phase oscillation signal to be produced with the bistable unit circuit, to increase N pole excitation signal and to offset S pole excitation signal simultaneously relatively, the magnetism intensity of electromagnet apparatus N utmost point magnetic is increased.

3. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this frequency changer circuit comprises a pressure unit circuit, and this pressure unit circuit is that the dc source that will input to frequency changer circuit comes down to that lower voltage is supplied to each element circuit and as the running voltage of its electronic building brick.

4. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this dc source is supplied by a vertoro.

5. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this dc source is supplied by an accumulator.

6. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this dc source is supplied by the smoking base on the automobile, links with the power source special line and the Snivel suction instrument of smoking base.

7. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this oscillating unit circuit is the Shi Mite oscillating circuit.

8. the Snivel suction instrument of DC frequency-changing as claimed in claim 1, it is characterized in that: this electromagnetic pump can be accommodated in the seat body, this seat body is provided with a negative pressure joint and a positive pressure connector at least, the absorption of this negative pressure joint and electromagnetic pump is connected a negative pressure line between taking over, between the discharge nozzle of this positive pressure connector and electromagnetic pump is to be connected a malleation pipeline, and this nose sucking device is connected in the negative pressure joint.

9. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: the magnetic of this Magnet lateral surface is the N utmost point, medial surface is the S utmost point.

10. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2, it is characterized in that: this 2 air chambers is made as the configuration of upper and lower relation.

11. the Snivel suction instrument of DC frequency-changing as claimed in claim 8 is characterized in that: this oscillating unit circuit can be linked to the knob on the seat body, utilizes this knob to start and adjust the height of frequency of oscillation.

12. the Snivel suction instrument of DC frequency-changing as claimed in claim 2, it is characterized in that: this electromagnetic pump can be accommodated in the seat body, this seat body is provided with a negative pressure joint and a positive pressure connector at least, the absorption of this negative pressure joint and electromagnetic pump is connected a negative pressure line between taking over, between the discharge nozzle of this positive pressure connector and electromagnetic pump is to be connected a malleation pipeline, and this nose sucking device is connected in the negative pressure joint.

13. the Snivel suction instrument of DC frequency-changing as claimed in claim 12 is characterized in that: this modulation element circuit can be connected to a knob of seat body, starts and adjust the size of the single-phase oscillation signal of this modulation element circuit generation by this knob.

14. the Snivel suction instrument of DC frequency-changing as claimed in claim 12, it is characterized in that: this modulation element circuit can be connected to a key groups of seat body, this key groups has one to several buttons, counts the size that button can start and adjust the single-phase oscillation signal of this modulation element circuit generation by this.

15. the Snivel suction instrument of DC frequency-changing as claimed in claim 1 or 2 is characterized in that: this extractor comprises a suction nozzle and a nasal mucus receiving flask at least.

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