Patent Publication Number: US-2023139086-A1

Title: Negative-pressure massage machine with embedded filter

Description:
BACKGROUND 
     Technical Field 
     The disclosure relates to a negative-pressure massage machine, particularly to a negative-pressure massage machine with an embedded filter. 
     Related Art 
     With the faster and faster rhythm of life, people usually do not have enough time to relax or need to release accumulated pressure. Thus, there are many massage machines in the market. A related-art negative-pressure massage device includes a host, a soft tube, and a vacuum cup. Two ends of the soft tube separately connect to the host and the vacuum cup. A user may control the vacuum cup by the host to suck air from the skin or eject air on the skin so as to accomplish the effect of massage and relaxation. 
     Because the negative-pressure massage device is usually used with essential oil or lotion, a filter is provided outside the soft tube or in the pipeline of the host to prevent the essential oil or lotion from entering the host. However, the external filter may not be installed by the user and that causes infiltrating of essential oil or lotion to the host. The degree of dirtiness of the inside filter cannot be viewed from the outside and replacement is hard to perform. In addition, the related-art filter uses a common passage during sucking and ejecting air, so the essential oil or lotion in the filter core may be ejected to the user’s skin when ejecting air. 
     In view of this, the inventors have devoted themselves to the above-mentioned related art, researched intensively and cooperated with the application of science to try to solve the above-mentioned problems. 
     SUMMARY 
     An object of the disclosure is to ensure that the ventilation is incorporated with a filter when a user is operating, and to make the degree of dirtiness of the filter be easily viewed and the filter be replaced conveniently. 
     To accomplish the above object, the disclosure provides a negative-pressure massage machine with an embedded filter, which includes a main body and an embedded filter. The main body has a panel with an installing hole. The embedded filter includes a hollow cylinder and a filter element disposed in the hollow cylinder. The hollow cylinder is assembled or removed corresponding to the installing hole from the outside of the panel. 
     The disclosure further has the following functions. By the hollow cylinder with transparent material, a user may directly view the degree of dirtiness of the filter element from the outside. The holding ribs on an inner wall of the hollow cylinder may increase the friction against the filter element to avoid unexpected separation. Rotating the embedded filter may make each latching lug latched in corresponding one of the locking recesses so as to fasten the embedded filter in the adapter. The first magnetic element of the engaging portion and the second magnetic elements of the connecting portion attract each other so that the embedded filter is easily connected to or separated from the adapter. The air sealing ring and the rubber ring may effectively seal up the embedded filter to avoid leakage when sucking and ejecting air. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a perspective view of the disclosure; 
         FIG.  2    is an exploded view of the main body and the embedded filter of the disclosure; 
         FIG.  3    is an exploded view of the adapter and the embedded filter of the disclosure; 
         FIG.  4    is an exploded view of the embedded filter of the disclosure; 
         FIG.  5    is another exploded view of  FIG.  4   ; 
         FIG.  6    is a perspective view of the inside of the main body of the disclosure; 
         FIG.  7    is a cross-sectional view of the adapter and the embedded filter of the disclosure; 
         FIG.  8    is another cross-sectional view of the adapter and the embedded filter of the disclosure; and 
         FIG.  9    is an exploded view of the main body and the embedded filter of another embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The technical contents of this disclosure will become apparent with the detailed description of embodiments accompanied with the illustration of related drawings as follows. It is intended that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive. 
     The disclosure provides a negative-pressure massage machine with an embedded filter  20 , which is used with a soft tube (not shown in figures) and a vacuum cup (not shown in figures). Please refer to  FIGS.  1 - 4   . The massage machine includes a main body  10  and an embedded filter  20 . 
     The main body  10  is substantially a trapezoid. A front side of the main body  10  has a panel  11  with an installing hole  111 . In the embodiment, the panel  111  is further provided with a knob, a key, a buzzer, a display, a switch, etc. Designers may change the design of the panel  111  according to demands, so the disclosure does not limit it. 
     The embedded filter  20  includes a hollow cylinder  21  and a filter element  22  disposed in the hollow cylinder  21 . The hollow cylinder  21  may be assembled or removed corresponding to the installing hole  111  from the outside of the panel  11 . In some embodiments, the hollow cylinder  21  is a transparent member so that the degree of dirtiness of the filter element  22  may be directly viewed from the outside. The inside of the hollow cylinder  21  is provided with an air outlet pipe  211  and an outer connector  212  communicating with the air outlet pipe  211 . Multiple air inlet openings  213  are formed between the air outlet pipe  211  and the outer connector  212 . The outer connector  212  is used for connecting the soft tube (not shown in figures) to cooperate with the vacuum cup (not shown in figures) so as to guarantee the filter is used to suck or eject air when a user is using and is easy to be removed or replaced for the user. In the embodiment, the filter element  22  is, but not limited to, a cylindrical cotton filter. The filter element  22  is adapted to sheathe the outer periphery of the air outlet pipe  211  and fixed between the hollow cylinder  21  and the air outlet pipe  211 . In some embodiments, an inner wall of the hollow cylinder  21  is protruded with multiple holding ribs  214  so that when the filter element  22  is fixed in the hollow cylinder  21 , a periphery of the filter element  22  is slightly deformed by the holding ribs  214  and the hold the filter element  22  is firmly held in the hollow cylinder  21 . 
     Further, the negative-pressure massage machine of the disclosure includes an adapter  30 . The adapter  30  passes through and is fixed to the installing hole  111  for the embedded filter  20  to be sheathed and fastened. In the embodiment, the adapter  30  is fixed on the panel  11  by multiple screws A. In detail, the adapter  30  has a chamber  31  and an aperture  32  communicating with the chamber  31 . The aperture  32  is located at an end of the adapter  30  projecting from the panel  11 . An outer edge of the aperture  32  is formed with a connecting portion  33 . Please refer to  FIG.  7   . The adapter  30  further includes a communicating element  27  disposed in the chamber  31 . The hollow cylinder  21  is received in the chamber  31 . An end of the hollow cylinder  21  is protruded with an engaging portion  23  corresponding to and engaging with the connecting portion  33 . In the embodiment, the engaging portion  23  is formed with multiple latching lugs  231 . The connecting portion  33  is formed with multiple locking recesses  331  separately corresponding to the latching lugs  231 . Rotating the embedded filter  20  may make each latching lug  231  latched in corresponding one of the locking recesses  331  so as to fasten the embedded filter  20  in the adapter  30 . 
     Please refer to  FIGS.  4  and  5   . The embedded filter  20  further includes an air sealing ring  24 , a rubber ring  25  and a venting cover  26 . The air sealing ring  24  is substantially of an annular shape and disposed in the engaging portion  23 . When the embedded filter  20  is fixed in the adapter  30 , the air sealing ring  24  is tightly clamped between the engaging portion  23  and the connecting portion  33  to accomplish the effect of sealing. The rubber ring  25  is substantially of an annular shape and is adapted to sheathe the venting cover  26 . The venting cover  26  is plugged on an end of the hollow cylinder  21  to block the filter element  22  between the hollow cylinder  21  and the venting cover  26  and prevent the filter element  22  from escaping the embedded filter  20 . The rubber ring  25  is tightly clamped between the hollow cylinder  21  and the venting cover  26  to accomplish sealing and guarantee no air leakage. The center of the venting cover  26  is formed with a through hole  261  for the communicating element  27  to pass and be fixed. Also, the venting cover  26  is formed with multiple vents  262  on the periphery of the through hole  261  so that the air filtered by the filter element  22  may flow out of the embedded filter  20  through the vents  262 . 
     Please refer to  FIG.  3   . An end of the adapter  30 , which is opposite to the aperture  32 , is formed with a sucking connector  34 , at least one leaking connector  35 , an air pressure detecting connector  36  and a negative ion emitting connector  37 . In the embodiment, the leaking connector  35  is two in number. The two leaking connectors  35  are, but not limited to, a high-flow leaking connector  351  and a low-flow leaking connector  352 . The high-flow leaking connector  351 , the low-flow leaking connector  352  and the negative ion emitting connector  37  communicate with one another, and the sucking connector  34  communicates with the air pressure detecting connector  36 . Please refer to  FIG.  6   . The negative-pressure massage machine of the disclosure further includes a circuit board  40 , a pressure detecting module  41 , a vacuum pump  50 , at least one electromagnetic valve  60 , an air inlet bar  70 , an air outlet bar  80 , a negative ion generator  90  and multiple connecting tubes (shown by broken lines for simplification). In the embodiment, the electromagnetic valve  60  is two in number. The two electromagnetic valves  60  are, but not limited to, a high-flow electromagnetic valve  61 , and a low-flow electromagnetic valve  62 . 
     In detail, the vacuum pump  50  is used to suck air for a vacuum cup (not shown in figures). The vacuum pump  50  has an air inlet hole  51  and an air outlet hole  52 . The air inlet hole  51  is connected to the sucking connector  34  and the air outlet hole  52  is connected to the air outlet bar  80 , so that the gas sucked by a vacuum cup (not shown in figures) and filtered by the embedded filter  20  may be ejected to outside of the main body  10  by the vacuum pump  50  through the air outlet bar  80 . The pressure detecting module  41  is disposed on the circuit board  40  and connected to the air pressure detecting connector  36  to measure the vacuum degree when the vacuum cup (not shown in figures) is sucking air. A user may read the value through the display on the panel  11 . The high-flow electromagnetic valve  61  is connected to the high-flow leaking connector  351  and the low-flow electromagnetic valve  62  is connected to the low-flow leaking connector  352 . Both the high-flow electromagnetic valve  61  and the low-flow electromagnetic valve  62  communicate with the air inlet bar  70 . Therefore, the gas sucked by the air inlet bar  70  may be ejected through different leaking connectors  35  depending on demands to achieve a change of air ejection flow. The negative ion generator  90  is connected to the negative ion emitting connector  37  so as to eject the negative ions generated by the negative ion generator  90  and the gas ejected by any one of the leaking connector  35  to further enhance the function of massage. 
     Please refer to  FIGS.  7  and  8   . A distal end of the chamber  31  is divided into an air outlet chamber  311  and an air inlet chamber  312 . The air outlet chamber  311  communicates with the high-flow leaking connector  351 , the low-flow leaking connector  352  and the negative ion emitting connector  37 . The air inlet chamber  312  communicates with the sucking connector  34  and the air pressure detecting connector  36 . When the embedded filter  20  is installed in the chamber  31  of the adapter  30 , the through hole  261  of the venting cover  26  is passed by the communicating element  27  to make the communicating element  27  and the air outlet pipe  211  communicate with each other. As a result, the outer connector  212 , the air outlet pipe  211 , the communicating element  27 , the air outlet chamber  311  and the leaking connector  35  jointly form an air outlet channel X, and the outer connector  212 , each air inlet opening  213 , the filter element  22 , each vent  262 , the air inlet chamber  312  and the sucking connector  34  jointly form an air inlet channel Y. Therefore, the air outlet channel X and the air inlet channel Y are two independent channels so that the oily dirt filtered by the filter element  22  may not be re-ejected when ejecting air. 
     Moreover, when sucking air, the air flows through the air inlet channel Y of the embedded filter  20 , its complete path is described as follows. Air enters though the outer connector  212  of the embedded filter  20 , then flows in between the hollow cylinder  21  and the air outlet pipe  211  through the air inlet openings  213  and is filtered by the filter element  22  to filter out impurities such as oily dirt, next flows through the venting cover  26  and then enters the air inlet chamber  312  of the adapter  30  and leaves the adapter  30  through the sucking connector  34 , and finally passes the vacuum pump  50  and is ejected to outside of the main body  10  through the air outlet bar  80 . 
     In detail, when ejecting air, the air flows through the air outlet channel X of the embedded filter  20 , its complete path is described as follows. Air is sucked from the outside of the main body  10  through the air inlet bar  70 , then flows to corresponding one of the high-flow leaking connector  351  and the low-flow leaking connector  352  through either the high-flow electromagnetic valve  61  or the low-flow electromagnetic valve  62 , next enters the air outlet chamber  311  and then flows through the communicating element  27  and the air outlet pipe  211  in order, and finally is ejected to the vacuum cup (not shown in figures) from the outer connector  212  through the soft tube (not shown in figures). 
     Please refer to  FIG.  9   , which shows another embodiment of the disclosure. Its main difference is the connection between the engaging portion  23  and the connecting portion  33 . In the embodiment, a first magnetic element  28  is disposed in the engaging portion  23  and the connecting portion  33  is provided with multiple second magnetic elements  332 . The first magnetic element  28  and each second magnetic element  332  attract each other so that the engaging portion  23  and the connecting portion  33  may be easily connected and separated by a user. In detail, the first magnetic element  28  is an annular sheet. The first magnetic element  28  is adapted to sheathe the hollow cylinder  21  and is received in the engaging portion  23 . Each second magnetic element  332  is a block embedded in the connecting portion  33 . The first magnetic element  28  and the second magnetic elements  332  may be two kinds of magnets with opposite polarity or a combination of a magnet and a magnetic metal, the disclosure does not limit to this, the requirement is that the two may magnetically attract each other. 
     While this disclosure has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of this disclosure set forth in the claims.