Abstract:
A DC-AC frequency converter type nose cleaner includes an electromagnetic pump, a container storing a cleaning solution, a nose-washing tool and a frequency converter circuit driving the electromagnetic pump. The frequency converter circuit at least includes an oscillator circuit, a bistable circuit and a push-pull circuit. The swing speed, the swing frequency and the swing amplitude of the swing arms vary with the change of the oscillation frequency of the oscillator circuit. The DC-AC frequency converter type nose cleaner can change the pressure and the flow generated by the electromagnetic pump so as to satisfy the requirement of the discharge pressure and flow of the nose cleaner so as to overcome the defect of the discharge pressure of the conventional nose cleaner that is too big to hurt the user.

Description:
BACKGROUND OF THE PRESENT INVENTION 
     1. Field of Invention 
     The present invention relates to a DC-AC frequency converter-type nose cleaner, and more particularly to a nose cleaner with an electromagnetic pump supplied with AC power obtained from the oscillation of DC power, wherein the speed, the frequency, and the amplitude of the swing arms of the electromagnetic pump vary with the frequency of the switching between the N-phase and the S-phase of the electromagnetic device, whereby the discharge pressure and the discharge flow generated in the electromagnetic pump will satisfy the requirement of the nose cleaner. 
     2. Description of Related Arts 
     Most upper respiratory tract infections, including nasosinusitis and nasal allergies, are caused by the ataxia of the cilia on the nasal mucosa. Contaminants and bacteria drawn in through the nose can be effectively removed by the regular movement of the cilia on the nasal mucosa, thereby protecting the health of the individual. 
     The nasal sprayers commonly on sale on the market or in use for “ear-nose-throat” ailments treatment (ENT ailments) mainly utilize ultrasonic vibrations to atomize the liquid medicines into micro particles so that the atomized medicines can be rapidly and easily breathed into the respiratory tracts and the lungs of human bodies for a desired treatment. However, these nasal sprayers cannot substantially mend the ataxia of the cilia. 
     Accordingly, a conventional nose cleaner, as shown in  FIG. 9 , requires the user to bend their head downward, open their mouth to breath, and then a nose-washing tool is used to inject the cleaning solution or warm salt water, which is at about 35-38 degree Celsius, into the nasal cavity of one side of the nose. The cleaning solution flows through the nasopharynx and flows out from the nasal cavity through the other side of the nose, wherein this cleaning assists the movement of the cilia on the nasal mucosa. This is helpful in the prevention of colds, allergic rhinitis, nasosinusitis, halitosis, backflow of the nasal mucus, etc. 
     Currently, the technology of nose cleaners still focuses on the controlling the intensity of the water flow. Although high pressure water flow will provide better cleaning, it may choke the user, cause damage to the nasal mucosa, or even cause severe pain to the someone with sinuses swollen; therein leading to secondary damage. If the pressure of the water flow is too low, the effect of the cleaning will be reduced. As the proper intensity of the water flow varies from person to person, it is hard for the producers to handle. 
     Referring to  FIGS. 1-7 , an electromagnetic pump  20  is disclosed, which could also be called as a swing arm pump or a matrix type pump. The electromagnetic pump  20  is lightweight and could be operated with less noise, lower power consumption, and little chance to generate a high heat. The electronic circuit, of the electromagnetic pump, is hard to short circuit when the inlet and the outlet channels are blocked. Hence, the above mentioned electromagnetic pump is a good choice for mechanical work in medical apparatuses and instruments. The electromagnetic pump  20  has an electromagnetic device  27  on one side and a pump housing  21  on the other side. Each of two outer opposing sides of the pump housing  21  provides a stretchable and elastic bladder  24 , which further provides a swing-arm  25  respectively thereon. One end of each swing arm  25  is disposed on the outer side of the pump housing  21 , and a magnetic member  26  is provided on the other end of each swingarm  25  at a predetermined distance from the electromagnetic device  27 . The inside of the pump housing  21  is divided into chamber  211  and chamber  212 , wherein chamber  211  communicates with two inlet tubes  22 , and chamber  212  communicates with two outlet tubes  23 . Referring to  FIGS. 2 and 3 , the electromagnetic device  27  has two side magnetic members  271  and a middle magnetic member  272 , wherein the polarity of the three members alternate between N-phase and S-phase. Two magnetic members  26  are respectively disposed opposite to the pair of side magnetic members  271 , and have N-phase outside surfaces and S-phase inside surfaces, respectively. As shown in  FIG. 2 , when the two side magnetic members  271  of the electromagnetic device  27  switch to N-phase and the middle magnetic member  272  switches to S-phase; the two magnetic members  26  are attracted by the middle magnetic member  272  and are repulsed by the two side magnetic members  271  to bring the swingarms  25  towards the middle. In contrast, as shown in  FIG. 3 , when the two side magnetic members  271  of the electromagnetic device  27  switch to S-phase and the middle magnetic member  272  switches to N-phase; the two magnetic members  26  are repulsed by the middle magnetic member  272  and are attracted by the two side magnetic members  271  to bring the swingarms  25  towards the outside. The speed, frequency, and amplitude of the swing arm  25  is relative to the predetermined frequency of the power source, and the discharge pressure and flow. 
     Referring to  FIGS. 4-7 , when the swing arms  25  swings towards the outside to expand the bladder  24 , the two first check valves  241 , respectively provided between the pump housing  21  and the bladders  24 , are set to open to allow a fluid flow into the first chamber  211  through the inlet tubes  22  on the outside of the pump. The fluid then flows into the two bladder  24  and then is stopped from flowing into the second chamber  212  by two second check valves  242 , as the two second check valves  242  are turned off. When the two swingarm  25  swing towards the middle to compress the two bladders  24  respectively, the two second check valves  242  are turned on and the first check valves  241  are turned off; therefore, the fluid in the two bladders  24  could only flow into the second chamber  212 , but reflow back into the first chamber  211 . The fluid in the second chamber  212  is discharged from the pump housing  21  through the two outlet tubes  23 . With the designs mentioned above, the pump housing  21  draws fluid from the inlet tubes  22  and then discharges the fluid from the outlet tube  23  to accomplish the objective of transporting the fluid. As shown in  FIG. 8 , the outlet tubes  23  connect to a nose-washing tool  50 , wherein the nose-washing tool  50  could be used to clean the nose. 
     The electromagnetic pump  20  must be supplied with AC power to drive the two swing arms  25  to swing back and forth. The voltage of the domestic electricity used in the countries worldwide is either 110V or 220V. For example, the domestic electricity in Taiwan is single phase electricity with a voltage of 110V and a frequency of 60 Hz. When alternating current electricity of 110V and 60 Hz is used as the power source of the electromagnetic pump  20 ; the speed, frequency and amplitude of the swinging of the swing arms  25  of the electromagnetic pump  20  are fixed and cannot be adjusted. These parameters are unable to be adjusted due to a combined effect of the magnetic field strength generated in the electromagnetic device  27 , the length and width of the swing arms  25 , the magnetic strength of the magnetic members  26 , and the elasticity of the bladders  24 . That means the pressure and the flow of the discharge of the electromagnetic pump  20  cannot be adjusted according to the requirement of the pressure and/or the flow. Hence, when the electromagnetic pump  20  is applied to the nose cleaner, the discharge force might be so large to choke the user or cause damage to the nasal mucosa and the sinuses. Conversely, the discharge force may be too small to clean the nasal cavity well. 
     Referring to  FIGS. 8 and 9 , the prior art of a nose-washing tool  50  has a hollow handle  51 , an extension tube  53 , a connecter  52  disposed on the top end of the handle  51  for communicating with the extension tube  53 , a spray nozzle  54  communicated with the extension tube  53 , and a fluid inlet connecter  55  disposed on the bottom end of the handle  51  for supplying the cleaning solution or physiological saline or warm salt water; wherein the fluid inlet connecter  55  and the extension tube  53  are communicated with each other inside of the handle  51 , wherein when button  56  of the handle  51  is switched, the spray nozzle  54  can be controlled to spray the cleaning solution. When using the nose cleaner, the user has to bend their head downward, open their mouth to breath, and then switch button  56  to control the spray nozzle  54  to inject the cleaning solution into the nasal cavity of one side of the nose. The cleaning solution flows through the nasopharynx and flows out from the nasal cavity through the other side of the nose, wherein the cleaning assists the movement of the cilia on the nasal mucosa. This is helpful in the prevention of colds, allergic rhinitis, nasosinusitis, halitosis, backflow of the mucus, etc. 
     The traditional nose-washing tool  50  has several disadvantages. For example, if the user has nasosinusitis or cannot not make an autonomous respiration, then the user will choke. For example, when the user feels that switching a button to turn off the nose-washing tool  50  is too slow, the user may draw the nose-washing tool  50  out of their nasal cavity too quickly and cause the spray nozzle  54  to uncontrollably spray cleaning solution everywhere. Hence, a nose cleaner and its accessories are required to be improved to satisfy people&#39;s requirements. 
     SUMMARY OF THE PRESENT INVENTION 
     According to the drawbacks of current nose cleans, which contain electromagnetic pumps that can only use a 110V AC power source, the present invention provides an electromagnetic pump that substantially accomplishes the following advantages and objectives. 
     The invention is advantageous in that it provides a nose cleaner with a frequency converter circuit which oscillates to convert DC into AC to supply power to an electromagnetic pump of the nose cleaner, wherein the frequency oscillation of the frequency converter circuit is able to be changed to adjust the discharge pressure and the discharge flow of the electromagnetic pump in order to obtain the most appropriate discharge pressure and flow of the nose cleaner. 
     Another advantage of the invention is to provide a nose cleaner which uses a general purpose power source, such as battery, in-car cigarette lighter, transformer rectifier unit (TRU), or any other suitable device to provide DC, and thus the nose cleaner could be widely used in any place with a suitable power source. 
     Another advantage of the invention is to provide a nose cleaner with a frequency converter circuit which further links to a modulation circuit, wherein when the swing arms swing outward, the modulation circuit is activated to accelerate the swing speed of the swing arms to further enlarge the discharge pressure of the electromagnetic pump, thereby the discharge pressure of the nose cleaner could be adjusted according to the user&#39;s requirement. 
     Another advantage of the invention is to provide a nose-washing tool having a touch sensitive switch which could immediately stop the injection of the cleaning solution after the nose-washing tool leaves the nasal cavity when the user chokes, as a result the nose-washing tool overcomes the splashing defect of the cleaning solution present in the traditional nose-washing tool. 
     Additional advantages and features of the invention will become apparent from the description which follows, and may be realized by means of the instrumentalities and combinations particular point out in the appended claims. 
     According to the present invention, the foregoing and other objects and advantages are attained by a nose cleaner comprising an electromagnetic pump, a frequency converter circuit (which oscillates to convert DC into AC), a nose-washing tool, and a container for storing a cleaning solution. 
     The electromagnetic pump has an electromagnetic device on one side and a pump housing on the other side, wherein at least one outside surface of the pump housing provides a stretchable and elastic bladder, which further provides a swing arm thereon. One end of the swing arm is disposed on outer side of the pump housing and a magnetic member is provided on the other end of the swing arm with a predetermined distance from the electromagnetic device. The inside of the pump housing is divided into two chambers, including a first chamber having at least one inlet connecter for communicating inside and outside and a second chamber having at least one outlet connecter for communicating inside and outside, wherein the first chamber and the second chamber are arranged up and down, or forth and back. A check valve is provided between each chamber and corresponding bladder. The swing arms reciprocate to cause the electromagnetic pump to draw fluid into the chambers from the inlet connecter and discharge the fluid from the outlet connecter. The inlet connecter of the electromagnetic pump is communicated with a container for storing cleaning solution, and the outlet connecter of the electromagnetic pump is communicated with a nose-washing tool. The electromagnetic pump could draw the cleaning solution from the container into the chambers of the electromagnetic pump through the inlet connecter and then drain the cleaning solution out from the nose-washing tool through the outlet connecter, wherein the cleaning solution drained from the nose-washing tool is used to clean the nasal cavity. 
     The frequency converter circuit comprises an oscillator circuit, a bi-stable circuit, and a push-pull circuit. The oscillator circuit oscillates to transform DC into a single-phase oscillating signal. The bi-stable circuit splits the single-phase oscillating signal into an N-phase stimulus signal and an S-phase stimulus signal; both of which respectively activate magnetism of two side magnetic members and a middle magnetic member of the electromagnetic device due to alternating switch between the N-phase and the S-phase. The two side magnetic members and the middle magnetic member are attracted or repulsed by the two magnetic members respectively to force the swing arms to reciprocate. The higher the oscillating frequency the oscillator circuit is adjusted, the higher the speed of switching between the N-phase and the S-phase of the electromagnetic device. The lower the oscillating frequency the oscillator circuit is adjusted, the lower the speed of switching between the N-phase and the S-phase of the electromagnetic device. The push-pull circuit amplifies and transports the N-phase stimulus signal and the S-phase stimulus signal to the electromagnetic pump to force the swing arms of the electromagnetic pump to swing effectively. The frequency converter circuit is arranged to use DC to activate the swing arms of the electromagnetic pump to reciprocate. The oscillating frequency of the oscillator circuit is adjusted to change the swing speed, the swing frequency, and the swing amplitude of the swing arms of the electromagnetic pump. This oscillating frequency further changes the discharge pressure, the discharge flow of the electromagnetic pump, and the relationship between the discharge pressure and the discharge flow. The oscillator circuit could be connected to a button or a keypad, which is arranged to adjust the oscillating frequency of the oscillator circuit. 
     In another embodiment of the present invention, the frequency converter circuit further comprises a modulation circuit which generates a single-phase oscillating signal. The N-phase stimulus signal and the S-phase stimulus signal generated in the bi-stable circuit are mixed with the single-phase oscillating signal to enhance the N-phase stimulus signal while balancing the S-phase stimulus signal to further enhance the magnetic field strength of the N-phase of the electromagnetic device. The enhancement of the magnetic field strength of the N-phase of the electromagnetic device causes the swing arms to swing inward with a higher speed and an increased force, and swing outward with a lower speed and a decreased force, whereby the discharge pressure and flow of the electromagnetic pump is increased. The modulation circuit is connected to a button or a keypad, which is arranged to activate or adjust the modulation circuit. The DC inputted into the frequency converter circuit could be supplied by an in-car cigarette lighter, a battery, or a transformer rectifier unit. 
     The nose-washing tool has a fluid inlet end with a handle disposed thereon and a fluid outlet end with a spray nozzle disposed thereon, wherein the cleaning solution flows from the end with the handle and is injected into the nasal cavity from the end of the spray nozzle. The spray nozzle is linked to a touch sensitive switch, which is enabled to move back and forth. When the spray nozzle is inserted into the nasal cavity, the spray nozzle will inject the cleaning solution. When the spray nozzle leaves the nasal cavity, the touch sensitive switch immediately moves back to the original position so that the spray nozzle can no longer inject the cleaning solution. 
     The container has a space for storing cleaning solution and is communicated with the inlet tube of the electromagnetic pump through a negative pressure channel. Thereby, the cleaning solution in the container could provide fluid in the electromagnetic pump. 
     Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings. These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of an electromagnetic pump according to a preferred embodiment of the present invention. 
         FIG. 2  is a schematic diagram of the electromagnetic with the swing arms swinging inward according of  FIG. 1 . 
         FIG. 3  is a schematic diagram of the electromagnetic with the swing arms swinging outward of  FIG. 1 . 
         FIG. 4  is a C-C section view of the electromagnetic pump of  FIG. 1  illustrating the flow direction of the fluid drawn by the electromagnetic pump. 
         FIG. 5  is an A-A section view of the electromagnetic pump of  FIG. 1  illustrating the flow direction of the fluid drawn by the electromagnetic pump. 
         FIG. 6  is a B-B section view of the electromagnetic pump of  FIG. 1  illustrating the flow direction of the fluid discharged by the electromagnetic pump. 
         FIG. 7  is a C-C section view of the electromagnetic pump of  FIG. 1  illustrating the flow direction of the fluid discharged by the electromagnetic pump. 
         FIG. 8  is a perspective view of a nose-washing tool according to the prior art. 
         FIG. 9  is a perspective view of a nose-washing tool when using according to the prior art. 
         FIG. 10  is an exploded perspective view of the nose cleaner according to the above preferred embodiment of the present invention. 
         FIG. 11  is an assemble view of the nose cleaner of  FIG. 10 . 
         FIG. 12A  is a block flow chart of a frequency converter circuit according to the above preferred embodiment of the present invention. 
         FIG. 12B  is a circuit diagram of the circuit of  FIG. 12A . 
         FIG. 13  is an exploded perspective view of the nose-washing tool according to the above preferred embodiment of the present invention. 
         FIG. 14  is an assemble view of the nose cleaner of  FIG. 13 . 
         FIG. 15  is another exploded perspective view of the nose-washing tool according to the above preferred embodiment of the present invention. 
         FIG. 16  is an assemble view of the nose cleaner of  FIG. 15 . 
         FIG. 17  is an A-A section view of the nose-washing tool of  FIG. 14 . 
         FIGS. 18A and 18B  are schematic diagrams illustrating the assembling of the extension tube and the handle of the nose-washing tool according to the above preferred embodiment of the present invention. 
         FIG. 19A  is a partial enlarged view of the nose-washing tool in close condition. 
         FIG. 19B  is a partial enlarged view of the nose-washing tool in open condition for cleaning the nasal cavity. 
         FIG. 20  is a schematic diagram of the electromagnetic pump according to the above preferred embodiment of the present invention illustrating the swinging of the swing arms with minimum frequency and maximum amplitude W 3 . 
         FIG. 21  is a schematic diagram of the electromagnetic pump according to the above preferred embodiment of the present invention illustrating the swinging of the swing arms with medium frequency and medium amplitude W 2 . 
         FIG. 22  is a schematic diagram of the electromagnetic pump according to the above preferred embodiment of the present invention illustrating the swinging of, the swing arms with maximum frequency and minimum amplitude W 1 . 
         FIG. 23  is a diagram showing the relationship between the oscillating frequency and the discharge pressure according to the above preferred embodiment of the present invention. 
         FIG. 24  is a diagram showing the relationship between the oscillating frequency and the discharge flow according to the above preferred embodiment of the present invention. 
         FIG. 25A  is a block flow chart of the frequency converter circuit according to a second embodiment of the present invention. 
         FIG. 25B  is a circuit diagram of the circuit of  FIG. 25A . 
         FIG. 26  is a schematic diagram showing the change of the inward swinging of the swing arms after the modulation circuit of the frequency converter circuit is activated according to the above preferred embodiment of the present invention. 
         FIG. 27  is a schematic diagram showing the change of the outward swinging of the swing arms after the modulation circuit of the frequency converter circuit is activated according to the above preferred embodiment of the present invention. 
         FIG. 28  is a schematic diagram of the electromagnetic pump received in a body according to the above preferred embodiment of the present invention. 
         FIG. 29  is an assemble view of the electromagnetic pump of  FIG. 28 . 
         FIG. 30  is a schematic diagram illustrating the flowing direction of the fluid in  FIG. 29 . 
         FIG. 31  is a schematic diagram illustrating the connection between the frequency converter circuit and the button of the body according to the above mentioned preferred embodiment of the present invention. 
         FIG. 32  is a section view illustrating the drawing of the cleaning solution in the container according to the above mentioned preferred embodiment of the present invention. 
         FIG. 33  is a sectional view illustrating the structure of the bubble generating valve in closed condition according to the above preferred embodiment of the present invention. 
         FIG. 34  is a schematic diagram of a transformer rectifier unit. 
         FIG. 35  is a schematic diagram of the battery. 
         FIG. 36  is a schematic diagram of the electric wire particularly used for the in-car cigarette lighter. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIGS. 10 to 18A  and  18 B, a nose cleaner according to a preferred embodiment of the present invention is illustrated, which comprises an electromagnetic pump  20 , a container  1  for storing a cleaning solution, a nose-washing tool  4 , and a frequency converter circuit  40 , wherein the frequency converter circuit  40  is provided on a circuit board  28  as shown in  FIG. 10 . 
     The electromagnetic pump  20  has an electromagnetic device  27  on one side and a pump housing  21  on the other side, wherein the electromagnetic device  27  is surrounded with coils and has a middle magnetic member  272  and two side magnetic members  271 , wherein the width of the middle magnetic member  272  is larger than that of the side magnetic member  271 . Each of two outside surfaces of the pump housing  21  provides a stretchable and elastic bladder  24 , which further provides a swing arm  25  respectively thereon, wherein one end of each swing arm  25  is disposed on the outer side of the pump housing  21  and a magnetic member  26  is provided on the other end of each swing arm  25  with a predetermined distance from the electromagnetic device  27 . The inside of the pump housing  21  is divided into two chambers; a first chamber  211  in the upper portion and a second chamber  212  in the lower portion. Although the first chamber  211  and the second chamber  212  are arranged upper-and-lower in this preferred embodiment, the two chambers could also be arranged forward-and-back. The first chamber  211  is communicated with one or more inlet tubes  22  and the second chamber  212  is communicated with one or more outlet tubes  23 . Two check valves  241  and  242  are respectively provided between the sides of the chamber  211 , chamber  212  and the bladders  24 . Due to the reciprocating swinging of the swing arms  25 , the electromagnetic pump  20  draws fluid into the chambers from the inlet tubes  22  and then discharges the fluid from the outlet tubes  23 . The theory of the movement of the electromagnetic pump  20  will not be mentioned as it has already been illustrated in  FIGS. 2 to 7 . 
     A fluid container  1 , as shown in  FIG. 1 , has a containing space  11 , therein for storing a cleaning solution, and an upper opening enabling an upper cover  12  to cover thereon. The upper cover  12  has a connecting member  13  provided thereon for communicating with the electromagnetic pump  20  through a negative pressure channel  31 . A suction member  14 , made of soft material, is connected to the bottom of the connecting member  13  for providing the cleaning solution stored in the containing space  11  of the container  1  as a fluid source according to the present invention. 
     As illustrated in  FIGS. 13 and 17 , the nose-washing tool  4  has a handle  60 , which comprises a hollow channel  60 A and a base  60 B. The hollow channel  60 A has a platform  61  on the top end, a trepan boring  62  opened downwardly on the bottom edge, an insert channel  63  disposed in the center portion of the platform  61  and extended into the hollow channel  60 A, and a connecting channel  64  with a smaller hole diameter coaxially connected on the bottom of the insert channel  63 ; wherein the bottom portion of the connecting channel  64  is exposed outside the bottom of the hollow channel  60 A. Referring to  FIGS. 18A and 18B , the platform  61  has two arcuate insert grooves  65  and two arcuate block grooves  66 , which are symmetrically arranged on the platform  61  and centered on the insert channel  63 , respectively; wherein the arcuate insert grooves  65  are respectively communicated with the arcuate block grooves  66 . The arcuate block groove  66  has a groove width smaller than that of the arcuate insert groove  65  and has an arcuate resist groove  661  disposed on the bottom thereof, wherein the arcuate resist groove  661  has the same groove width as that of the arcuate insert groove  65 . The base  60 B has a covering member  67  mated with the trepan boring  62 , a channel base  68  for the connecting of channel  64 . Drilling through to make the base  60 B could assist and support the end of the connecting channel  64  so that the fluid inlet tube could solidly connected with the end of the connecting channel  64  to transport the cleaning solution into the connecting channel  64 . 
     As illustrated in  FIGS. 13 ,  15  and  17 , extension channel  70  has a channel body  71 , a fixing base  72  disposed on the bottom of and extruded along the radial direction of the channel body  71  and mated with the platform  61 , a receiving channel  73  disposed on the bottom of the fixing base  72  and mated with the insert channel  63 , and a head  74  disposed on the top of the channel body  71 . Referring to  FIGS. 18A and 18B , the fixing base  72  has two arcuate plates  721  and two arcuate blocks  722  respectively disposed on the bottom of the arcuate plates  721  and radically extruded therefrom. The two arcuate plates  721  and the two arcuate blocks  722  could respectively insert into the arcuate insert grooves  65  and rotate toward the arcuate block grooves  66 . As a result, the arcuate blocks  722  are respectively located inside of the arcuate resist grooves  661  on the bottom of the arcuate block grooves  66 , wherein the extension channel  70  could be quickly assembled with the handle  60 . For the same reason, if the extension channel  70  needs to be changed, the extension channel  70  only needs to be rotated backward to make the arcuate plates  721  and the arcuate blocks  722  respectively face the arcuate insert grooves  65 ; then the extension channel  70  could be drawn out upward. The receiving channel  73  has a ring groove  731  disposed on the outside surface thereof, which could be engaged with an O shaped ring  732  to make the receiving channel  73  connect tightly with the insert channel  65  without leakage. An inner hole  711  is formed inside of the channel body  71  and the receiving channel  73 , wherein the inner hole  711  is communicated with the connecting channel  64  and has the same diameter as the connecting channel  64 . The head  74  has a containing house  741  grooved at the end thereof and engaged with the top end of the inner hole  711 , thereby the containing house  741  receives the cleaning solution that flows in from the receiving channel  64 . The head  74  has a ring block  742  protruded at the end. 
     Referring to  FIGS. 13 ,  15  and  17 , a fixing head  75  has a ring slot  76  mated with the ring block  742  to cause a guiding house  78  to be formed inside of the fixing head  75 , wherein the guiding house  78  is communicated with the containing house  741 . The head  77  further has a fluid outlet hole  79  disposed on the top and in the center of the top, wherein the fluid outlet hole  79  communicates the inner side and the outer side of the guiding house  78 . 
     Referring to  FIGS. 13 ,  15 ,  17  and  19 A, a touch sensitive switch  80  has a shoulder member  81  that slides along the guiding house  78 , wherein a center shaft  82  is extended downwardly from the center of the shoulder member  81 . In order to avoid the bottom of the center shaft that blocks the top of the inner hole  711  in the extension channel  70 , the center shaft  82  has a groove  821  disposed on the bottom. The shoulder member  81  has a spindle  83  disposed on the top thereof and extended upwardly from the center thereof in such a manner that the spindle  83  could move back and forth in the fluid outlet hole  79 . The spindle  83  further has a spray hole  84  provided on the top and a fluid guiding hole  85  radically provided on a portion towards the shoulder  81 , wherein the fluid guiding hole  85  is communicated with the spray hole  84 , and the shoulder member  81  is communicated with the guiding house  78  and a hole  86  of the containing house  741 . The spindle  83  further has a hollow spray nozzle  90  disposed on the top thereof. The spray nozzle  90  has a ring cover  91  arranged to cover the head  77 , a sleeve  93  engaged with the top of the spindle  83 , a through-hole  92  communicated the inner side, and the outer side of the spray hole  84 , wherein the spray nozzle  90  could also slide along the head  77 . 
     A resilient element, which is embodied as a spring  100  in the preferred embodiment of the present invention, has an end supported on the bottom of the containing house  741  and another end supported on the shoulder member  81  while the center shaft  82  is sleeved in and extended along the spring  100 . The shoulder member  81  is supported onto the inner top surface of the guiding house  78  due to the force of the spring  100 , thereby the hole  86  is closed by the inner top surface of the guiding house  78 , and the fluid guiding hole  85  is closed by the inner surface of the fluid outlet hole  79 . 
     Referring to  FIGS. 13 ,  19 A and  19 B, when the spray nozzle  90  touches the nasal cavity, the spindle  83  of the touch sensitive switch  80  is brought to move, and the shoulder member  81  overcomes the predetermined force of the spring  100  and moves towards the containing house  741 , thereby the hole  86  and the fluid guiding hole  85  could be communicated with each other through the guiding house  78 . The cleaning solution in the containing house  741  is transported to the spray hole  84  and injected out from the through-hole  92  of the spray nozzle  90 , thereby the function of cleaning nasal cavity could be achieved. When the user chokes due to the nasosinusitis or the incapability of autonomous respiration, the user merely needs to draw the spray nozzle  90  out from the nasal cavity, and the spring  100  will elastically comeback and force the touch sensitive switch  80  to close the hole  86  by the inner top surface of the guiding house  78  and close the fluid guiding hole  85  by the inner surface of the fluid outlet hole  79 , thereby the cleaning solution injected from the spray nozzle  84  will be immediately turned off. Therefore, the defect that the cleaning solution injecting here and there has been overcome. 
     The frequency converter circuit  40  comprises a voltage reduction circuit  42 , an oscillator circuit  43 , a bi-stable circuit  44 , and a push-pull circuit  46 . The voltage reduction circuit  42  transforms the 12V DC inputted by the outside DC power source  41  to 5V DC, which is supplied to each circuit as the working current, wherein the voltage reduction circuit  42  could be used to stabilize the voltage. The oscillator circuit  43  could be a Schmitt oscillator circuit, which oscillates to transform a 12V DC into a single-phase oscillating signal with an oscillating frequency between 43 Hz and 66 Hz. The bi-stable circuit  44  splits the single-phase oscillating signal into an N-phase stimulus signal and an S-phase stimulus signal, both of which respectively activate the magnetism of the two side magnetic members  271  and the middle magnetic member  272  to alternate switching between the N-phase and S-phase. Accordingly, the two side magnetic members  271  and the middle magnetic member  272  are attracted or repulsed by the two magnetic members  271  respectively to force the swing arms  25  to reciprocate to compress or expand the bladders  24  respectively. The push-pull circuit  46  amplifies the N-phase stimulus signal and the S-phase stimulus signal to force the swing arms  25  of the electromagnetic pump  20  to swing effectively to further improve the power of the electromagnetic pump  20 . 
     Referring to  FIGS. 20 to 22 , when the oscillator frequency of the oscillator circuit  43  is adjusted to a low frequency such as 43 Hz, the speed of the switching between the N-phase and the S-phase of the electromagnetic device  27  decreases to further cause the reciprocated swinging of the swing arms  25  to have a lower speed, a lower frequency, and larger amplitude; shown as W 3  in  FIG. 12 . Due to the decrease of the swing speed of the swing arms  25 , the discharge pressure of the electromagnetic pump  20  decreases, and due to the increase of the swing amplitude of the swing arms  25 , the discharge flow of the electromagnetic pump  20  increases substantially. 
     Referring to  FIGS. 23 and 24 , the higher the oscillating frequency of the oscillator circuit  43  of the frequency converter circuit  40  of the present invention is, the higher the speed of the switching between the N-phase and the S-phase of the electromagnetic device  27 . This further causes the reciprocated swinging of the swing arms  25  to have a higher speed, a higher frequency, and a smaller amplitude; shown on W 1  in  FIG. 22 . As the swing arms  25  reciprocates with a higher speed and frequency, the frequency of the electromagnetic pump  20  correspondingly increases rapidly to increase the suction pressure and the discharge pressure (positive pressure), and as the swing arms  25  reciprocate with a smaller amplitude, the suction flow and the discharge flow of the electromagnetic pump  20  decrease correspondingly. Accordingly, when the oscillating frequency of the oscillator circuit  43  is adjusted to a mid-level frequency (such as 55 Hz), the reciprocated swinging of the swingarms  25  has a medium speed, a medium frequency, and a medium amplitude; shown in W 2  on  FIG. 11 . At this time, the discharge pressure and the discharge flow of the electromagnetic pump  20  are medium. 
     In view of above, it is appreciated that the electromagnetic pump  20  could have a lower discharge pressure and a higher discharge flow by means of adjusting the oscillating frequency of the oscillator circuit  43  to a lower frequency, and the electromagnetic pump  20  could have a higher discharge pressure and a lower discharge flow by means of adjusting the oscillating frequency of the oscillator circuit  43  to a higher frequency. Accordingly, when the above features are utilized in the nose cleaner, the electromagnetic pump  20  is able to be adjusted to a low frequency to provide for a low discharge pressure and high discharge flow if the patient&#39;s nasal cavity is damaged. In other words, the fluid pressure of the fluid injected from the nose-washing tool  5  is low enough to avoid hurting the nasal cavity and the fluid flow of the fluid is large enough to clean the nasal cavity well. For the patients that require a more thorough cleaning in the nasal cavity, the electromagnetic pump  20  is able to be adjusted to a medium frequency to provide for a medium discharge pressure and medium discharge flow or to a high frequency to provide for a high discharge pressure and low discharge flow. 
     Referring to  FIGS. 25A and 25B , a frequency converter circuit  40  of a nose cleaner according to a second preferred embodiment of the present invention is illustrated, which further comprises a modulation circuit  45  which generates a single-phase oscillating signal. The N-phase stimulus signal and the S-phase stimulus signal generated in the bi-stable circuit  44  are mixed with the single-phase oscillating signal respectively to enhance the N-phase stimulus signal while balancing the S-phase stimulus signal or to enhance the S-phase stimulus signal while balancing the N-phase stimulus signal respectively. That enhances the magnetic field strength of the N-phase of the electromagnetic device  27  while balancing the magnetic field strength of the S-phase of the electromagnetic device  27  or enhances the magnetic field strength of the S-phase of the electromagnetic device while balancing the magnetic field strength of the N-phase of the electromagnetic device  27  respectively. 
     The modulation circuit  45  according to the second preferred embodiment is arranged to enhance the magnetic field strength of the S-phase of the electromagnetic device  27  while balancing the magnetic field strength of the N-phase of the electromagnetic device  27 . Referring to  FIG. 26 , when the modulation circuit  45  is activated, the two side magnetic members  271  of the electromagnetic device  27  are switched to the N-phase and the middle magnetic member  272  of the electromagnetic device  27  is switched to the S-phase. As the magnetic members  26  are set to have the outside surfaces of N-phase and the inside surfaces of S-phase, the magnetic members  26  are greatly attracted by the S-phase middle magnetic member  272  of the electromagnetic device  27 , which causes the swing arms  25  to swing towards the middle with a higher speed and a greater force. Accordingly, the electromagnetic pump  20  has a higher discharge pressure and a higher discharge flow. Referring to  FIG. 27 , the middle magnetic member  272  of the electromagnetic device  27  is switched to the N-phase and the two side magnetic members  271  of the electromagnetic device  27  are switched to the S-phase. Due to the mixing of the modulation circuit  45 , the N-phase stimulus signal is weakened and causes the N-phase middle magnetic member  272  of the electromagnetic device  27  to have a less powerful magnetic field strength to repulse the magnetic members  26 . That causes the swing arms  25  to swing outwardly with a decreased speed and a decreased force. Accordingly, the suction pressure and the suction flow of the electromagnetic pump  20  are decreased. Thereby, when the modulation circuit  45  is activated, the swing arms  25  swings towards the middle with a higher speed and a greater force consistently, while swinging outwards with a lower speed and a smaller force consistently. In the other words, the modulation circuit  45  is arranged to enhance the discharge pressure of the electromagnetic pump  20 , of which the nose cleaner could provide a more thorough cleaning. 
     Referring to  FIGS. 32 to 33 , at least one bubble generating valve  6   a  is arranged in the fluid path between the container  1  and the nose-washing tool  4 . The bubble generating valve  6   a  comprises a T-shaped three-way connecter  6  and a cap  7 . The connector  6  comprises a first tube  61  extended vertically, and a second tube  62  and third tube  63  extended horizontally. The first tube  61  is communicated with the connecting member  13  of the container  1 . The second tube  62  is communicated with the soft channel  3  to allow the soft channel  3  to draw the cleaning solution into the container  1  through the connecter  6  and the suction member  14 . The third tube  63  has a threaded portion  632  for screwing with the cap  7  so as to control the gas-flow rate of an air inletting opening  631  thereof as well as the opening or closing of this inletting opening  631  so that when the electromagnetic pump  20  draws the cleaning solution into the container  1  the outside air is drawn and sucked in through the air inletting opening  631  to mix with the flowing cleaning solution due to the negative pressure effect thereof and thus the cleaning solution discharged from the nose-washing tool  4  which contains a plurality of air bubbles. As the discharged fluid contains a plurality of bubbles, the bubbles can generally come into contact with the nasal mucosa, so that when the bubbles in the discharged fluid break, oscillating force is generated and applied to the nasal mucosa to massage the mucocilia of the nasal mucosa and clean the dirt in the nasal cavity as well, thereby the cilia on the nasal mucosa can recover their regular movement without the need of using strong pressurized fluid. 
     Referring to  FIGS. 28 to 30 , according to a preferred embodiment of the present invention, the electromagnetic pump  20  and the circuit board  28  are embodied to be contained in a body  30 , which has a upper cover  301  and a lower base  302  connected to each other; wherein the upper cover  301  has a ring groove member  303  disposed on the upper surface thereof for being inserted by the bottom edge of the container  1  to support the container  1  onto the upper cover  301 . The upper cover  301  further has a negative pressure joint  33  to communicate the inside with the outside, and the lower base  302  has a positive pressure joint  34  to communicate the inside with the outside. The inlet tube  22  of the electromagnetic pump  20  is communicated with the inner end of the negative pressure joint  33  through a negative pressure channel  31 . The container  1  is communicated with the outer end of the negative pressure joint  33  through a negative tube  3 . The outlet tube  23  of the electromagnetic pump  20  is communicated with the inner end of the positive pressure joint  34  through a positive pressure channel  32 . The nose-washing tool  4  is communicated with the outer end of the positive pressure joint  34  through a positive tube  2 . Thereby, when the electromagnetic pump  20  is turned on, the cleaning solution in the container  1  is drawn into the electromagnetic pump  20  through the tube  3  and then injected out from the nose-washing tool  4  through tube  2 . 
     Referring to  FIGS. 29 and 31 , the oscillation circuit  43  is connected to a first button  37  or a first keypad  38  of the body  30 , as shown in  FIG. 29 . The first button  37  or the first keypad  38  is arranged to activate the oscillation circuit  43  and to adjust the oscillating frequency. In another embodiment, the modulation circuit  45  is connected to a second button  371  or a second keypad  381  of the body  30 , as shown in  FIG. 31 . The second button  371  or the second keypad  381  is arranged to activate the modulation circuit  45  to generate a single-phase oscillating signal and to adjust the single-phase oscillating signal. 
     Referring to  FIGS. 11 ,  12  and  34  to  36 , the external DC power source  41  of the embodiment includes a transformer rectifier unit  47 , a battery  48 , or an in-car cigarette lighter with 12V DC power source. The circuit board  28  further has a DC socket  29  for connecting to a transformer rectifier unit  47 , a battery  48 , or an in-car cigarette lighter  49 . Hence, it is very convenient for the users to use the present invention of the nose cleaner at home, in the car, or on the subways by connecting the nose cleaner to a suitable power source. 
     One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting. 
     It will thus be seen that the objects of the present invention have been fully and effectively accomplished. It embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.