Patent Publication Number: US-2013227884-A1

Title: Pot for vertical wall, and multi-filter and port support frame used therefor

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a port for nursing plants in a vertical wall, a multi-filter used therein, and a port support frame for supporting the port on the vertical wall. 
     2. Description of the Prior Art 
     In recent years, efforts for afforesting vertical walls in various forms to make the vertical walls eco-friendly are being made. Examples of such vertical walls include vertical walls obtained by making inclined surfaces formed by cutting or forming the ground perpendicular to the ground, wall surfaces of large buildings, and the like. 
     Various methods of construction for afforesting inclined surfaces have been proposed. For example, Korean Patent No. 10-0419883 discloses an inclined surface afforestation reinforcing construction method, in which in order to afforest an inclined surface of a cut or formed ground, a soil layer is formed by using a frame and the frame is moved forward after formation of the soil layer to form a vegetation soil layer between the frame and a tip end of the soil layer. 
     However, according to the method, since a surface of the vegetation soil layer faces only in an upward direction with respect to the ground surface, the plants in the vegetation soil layer grow upward with respect to the ground surface. Thus, when people look at an inclined surface from the ground surface, one surface of the frame as well as plants growing on the inclined surface are viewed, considerably deteriorating the afforestation effect. 
     Further, according to the related art, it is very difficult to fix a soil layer along the vertical wall. In particular, the vegetation soil is scattered by rain and wind after the vertical wall is afforested, and thus the vegetation state cannot be properly maintained. 
     Recently, plant air cleaners for afforesting the wall surface of the interior of a large building and purifying the interior air by using the plants are widely used. Plants are set along the wall of the interior in the plant air cleaner to utilize the interior space of the building. If the plants are set from a lower side to an upper side along the wall in this way, a horizontal area of the interior occupied by the plant air cleaner is minimized. In contrast, if plants are set along the wall, a vertical area which is rarely used in the interior of the building can be utilized, which is relatively advantageous in utilization of space. 
     However, since plants should be set against the gravitational direction in order to set the plants by utilizing the wall of the interior of the building, it is relatively difficult to set the plants. Due to the problem, a part where plants are set from a lower side to an upper side of the wall of the interior of the building should be inclined. 
     Furthermore, soil is necessary to set plants in the wall of the interior of the building, in which case the soil should be at least slantly disposed so that the soil cannot flow due to gravity, and the inclination is preferably small. However, if the inclination at which the soil is disposed is too small, the interior space occupies too large a space, which is inefficient. 
     In addition, when some of the plants used in the plant air cleaner according to the related art are dead, they cannot be easily replaced. In particular, if some of the plants at a high location are dead, an operator should climb the wall while holding plants, soil, and working tools, pull the plants, and set new plants, which is very troublesome. 
     SUMMARY OF THE INVENTION 
     Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a port for setting plants used in a plant air cleaner installed in a vertical wall. 
     Another object of the present invention is to pass air through soil in which plants are set to purify the air in a plant air cleaner, and particularly, to maximally utilize operations of the roots of the plants. 
     Another object of the present invention is to allow for easy replacement of plants in a plant air cleaner. 
     Another object of the present invention is to locate vegetation soil in a certain space in the interior of a port to locate the vegetation soil along a vertical wall such that the roots of plants are located in the vegetation soil and the stems and leaves of the plants are located outside the port. 
     Another object of the present invention is to provide a port support frame for easily and firmly fixing a port filled with vegetation soil for afforesting a vertical wall to the vertical wall. 
     In order to accomplish this object, there is provided a port for a vertical wall, including: a port body having first and second connecting bars connected to each other at a predetermined angle to have an interior space filled with soil, and having a plurality of body filter holes on one surface thereof; a cover configured to shield the interior space of the port body by connecting first and second connecting bars at a predetermined angle, having cover filter holes at locations corresponding to the body filter holes, and having vegetation holes through which plants pass between the cover filter holes; and multi-filters passing through the soil filled in the interior space, the body filter holes of the port body, and the cover filter holes of the cover to purify suctioned interior air while the interior air passes the multi-filters. 
     Each of the multi-filters includes: a support tubular body installed in the soil filled in the interior space of the port body and having first tubular body bars and second tubular body bars connected to each other to have a tubular shape opposite ends of which are opened; and a filtering case installed in an interior of the support tubular body, having first case bars and second case bars connected to each other at a predetermined angle to have a tubular shape opposite ends of which are opened, and having a first filtering part therein. 
     The port further includes distribution bars radially extending on an outer surface of the support tubular body and located in the soil filled in the interior space. 
     A microorganism filtering part is provided in an air flow path in the filtering case behind the first filtering part. 
     A plurality of distribution wings are installed in a row in a flow direction of air in an interior of the filtering case to be perpendicular to a direction in which air flows. 
     A microorganism sheet containing microorganisms in a substrate is provided to surround the support tubular body. The distribution wings are disposed in a row in a wing shaft, and a fixing leg at one end of the wing shaft is fixed to and installed in the filtering case. 
     In accordance with another aspect of the present invention, a multi-filter including: a support tubular body having first tubular bodies and second tubular bodies connected to each other at a predetermined angle and having a tubular shape, opposite ends of which are opened; and a filtering case installed in an interior of the support tubular body, having first case bars and second case bars connected to each other at a predetermined angle, having a tubular shape, opposite ends of which are opened, and having a first filtering part in an interior thereof. 
     A plurality of distribution bars radially extend on an outer surface of the support tubular body. 
     The multi-filter further includes a microorganism sheet containing microorganisms in a substrate and surrounding the support tubular body. 
     The multi-filter further includes a microorganism filtering part provided in an air flow path in the filtering case behind the first filtering part. 
     A plurality of distribution wings are installed in a row in a flow direction of air in an interior of the filtering case to be perpendicular to a direction in which air flows. 
     The distribution wings have disk shapes and the distribution wings having different diameters are alternately disposed. 
     In accordance with still another aspect of the present invention, there is provided a port for a vertical wall, including: a body having first and second connecting bars connected to a body frame to form a wall in a net form and one of the widest areas is opened; a cover coupled to the body to shield the opened surface of the body, and having first and second connecting bars connected to a cover frame to form a wall in a net form; and body fixing members and cover fixing members formed at corresponding locations of the body and the cover, respectively, to be coupled to each other, wherein a plurality of vegetation holes, peripheries of which are formed by first rings, are provided in the cover such that plants set in vegetation soil filled in an interior of the body protrude to the outside. 
     The body has a flat hexahedral shape and further has a water supply hole for supplying water to the vegetation soil filled in the interior of the body on a surface of the body facing upward when the body is installed in a vertical wall. 
     Some of the vegetation holes are formed by connecting second rings having a diameter larger than that of the first rings with connecting bars, and vegetation holes having a diameter larger than that of the vegetation holes formed by the first rings are formed by cutting the connecting bars and removing the first rings. 
     The body fixing members and the cover fixing members are provided at opposite ends of the body and the cover, respectively, and heights of the body fixing members and the cover fixing members provided at opposite ends of the body and the cover are different such that the adjacent body fixing member and cover fixing member are coupled to each other by one screw. 
     Each of the body fixing members and the cover fixing members includes an extension piece integrally formed therewith, and a coupling piece protruding perpendicular to the extension piece and coupled to a port support frame. 
     The screw simultaneously penetrates a body fixing member and a cover fixing member of adjacent ports to be coupled to the port support frame, and a coupling bracket having stopping plates by which the ports are stopped at opposite ends thereof and a coupling part connecting the stopping plates at the ends of the coupling bracket such that the screw penetrates therethrough. 
     In accordance with yet another aspect of the present invention, there is provided a port support frame for a vertical wall, including: a support frame body having an upper wall and a lower wall formed along an upper end periphery and a lower end periphery of a bottom plate, and having end walls ends of which are connected to the upper wall and the lower wall along opposite end peripheries of the bottom plate; port positioning parts partitioned by a vertical partition wall protruding vertically from the bottom plate of the support frame body and on which ports are fixedly positioned; and positioning members protruding from the bottom surface of the port positioning parts to support corners of the ports and forming certain apertures between the bottom surface of the port positioning parts and the ports. 
     Aperture ribs are formed in the port positioning parts along a locations corresponding to middle parts of the ports, and a height of the aperture ribs is the same as that of positioning surfaces recessed in the positioning members. 
     Rib openings are formed in the aperture ribs, and a lower opening is formed in the lower wall such that water flows through the lower opening. 
     A horizontal partition wall is formed in the bottom plate to extend in parallel to the upper side wall to form water pipe passing parts in which water pipes are located at an upper portion of the port positioning parts. 
     A water supply opening is formed in the horizontal partition wall such that water transferred from the pipes passing through the water pipe passing parts is transferred to ports of the port positioning parts. 
     Pipe openings are formed in the end walls corresponding to opposite ends of the water pipe passing parts such that pipes extend between adjacent port support frames. 
     ADVANTAGEOUS EFFECTS 
     A port for a vertical wall, a multi-filter used therein, and a port support frame according to the present invention art have the following effects. 
     First, since the port of the present invention has a certain space filled with soil so that the roots of plants can be located therein and the plants can protrude to the outside, a plant air cleaner can be easily configured by disposing a plurality of ports and can be easily maintained and repaired. 
     Since the port of the present invention separates an air flow path along which air circulates from a soil layer in which plants grow to maximize an area where the soil in which the plants are set and air contact each other in purifying interior air, air can be purified efficiently by utilizing the operations of the roots of the plants. 
     Further, since the soil in which plants are set is located in the port of the present invention, the port can be installed vertically, minimizing an area of the interior bottom necessary for installation of a plant air cleaner. 
     In addition, since the multi-filter installed in the port is provided with a microorganism sheet having microorganisms, air can be purified efficiently. Further, since a filter unit can be separated from a filter maintaining box to be replaced if necessary, the air purifying effect can be maximized. 
     According to the port of the present invention, since first connecting bars and second connecting bars connected to a body frame and a cover frame of a body and a cover are connected to each other to meet each other at a predetermined angle, thereby forming a wall, ventilation and drainage of water can be improved while effectively locating vegetation oil in the port. Further, since plants are made to protrude to the outside by forming plant vegetation holes of a predetermined size in the cover, plants can be effectively afforested in the port by using the vegetation soil in the port. 
     According to the present invention, since rings forming the plant vegetation holes are removable, the size of the plant vegetation holes can be variously determined according to the sizes of the plants, making it possible to vegetate various plants. 
     According to the present invention, since the body and the cover are formed of ultra violet polyethylene, durability against ultraviolet rays is excellent and it is easy to fix the body and cover to a port support frame due to its flexibility. Further, various colors can be achieved and anti-chemical property against a nourishing liquid can be improved. 
     Further, the port support frame of the present invention is installed in a vertical wall by fixing a plurality of ports, and a plurality of port support frames can be sequentially installed along mounting rails installed in the vertical wall to fix the ports to the vertical wall. Thus, the present invention allows for partial replacement of the ports in the port support frames, and replacement of a port support frame to replace only necessary parts from the entire vertical wall. Thus, the vegetation state of the vertical wall can be more easily maintained and repaired. 
     Since the port support frame of the present invention partitions ports with vertical partitions therein, root resistance and waterproofing can be improved, so the roots of plants do not influence each other. Thus, the plants do not compete, effectively achieving the afforestation. 
     Further, since the port support frame of the present invention eliminates interactions between the port and the vertical wall, the plants of the port or the moisture of the port do not influence the building or structure having the vertical wall, making it possible to increase durability of the building or structure. 
     Further, since the port support frame of the present invention has port fixing bosses, decorations can be fixed by using screws, and various decorations can be allowed by using spaces formed in a water pipe passing part. 
     Furthermore, since drainage and insulation effects are sufficiently increased by forming a certain space between the port and the port support frame on the inner surface of the port support frame, the plants of the port can be vegetated more efficiently. 
     In addition, when the vertical wall is a wall surface of a building, the port support frame of the present invention acts as an insulation of the building wall, increasing the insulation effect of the building. 
     Moreover, if a wall surface of the building in a city is afforested by the port support frame, a thermal island effect in the city can be reduced. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: 
         FIG. 1  is a schematic view showing a plant air cleaner; 
         FIG. 2  is an exploded perspective view showing a main part of a port according to an embodiment of the present invention; 
         FIGS. 3A and 3B  are front views showing covers of ports according to the embodiment of the present invention and a modification of the present invention, respectively; 
         FIG. 4  is a schematic side sectional view showing the port of  FIG. 2 ; 
         FIG. 5  is a rear view showing an outer appearance of the port of  FIG. 2 ; 
         FIG. 6  is an exploded perspective view showing a multi-filter according to an embodiment of the present invention; 
         FIG. 7  is a sectional view showing an internal configuration of the multi-filter according to the embodiment of the present invention; 
         FIG. 8  is a view showing an operation of a plant air cleaner employing the port according to the embodiment of the present invention; 
         FIG. 9  is a perspective view showing a port for a vertical wall according to another embodiment of the present invention; 
         FIG. 10  is an exploded perspective view showing the port of  FIG. 9 ; 
         FIG. 11  is a perspective view showing a main part of a cover constituting the port of  FIG. 9 ; 
         FIG. 12  is a side view showing the port of  FIG. 9 ; 
         FIG. 13  is an in-use state view showing that the ports of  FIG. 9  are connected to each other; 
         FIG. 14  is an in-use state view showing that the port of  FIG. 9  is installed in a port support frame; 
         FIG. 15  is a perspective view showing another example of the cover of  FIG. 9 ; 
         FIG. 16  is an in-use state view showing another example of coupling the port of  FIG. 9  to a port support frame; 
         FIG. 17  is a perspective view showing a port support frame according to an embodiment of the present invention; 
         FIG. 18  is a front view showing the a port support frame according to an embodiment of the present invention; 
         FIG. 19  is a detailed perspective view showing a water pipe passing part constituting the port support frame according to the embodiment of the present invention; 
         FIG. 20  is a perspective view showing a vertical partition wall and a coupling hole constituting the port support frame according to the embodiment of the present invention; and 
         FIG. 21  is a detailed perspective view showing a port positioning part constituting the port support frame according to the embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Hereinafter, a port for a vertical wall, a multi-filter used therein, and a port support frame according to exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
     First, a plant air cleaner which is an example in which the port of the present invention is used will be briefly described with reference to  FIG. 1 . 
     The plant air cleaner includes a mounting wall  1 , and the mounting wall  1  extends perpendicular to the bottom of a building. Of course, the mounting wall  1  may extend so as not to be perpendicular to but inclined with respect to the bottom of the building. However, in this case, the area of the building bottom occupied by the plant air cleaner is large, which is not preferable. 
     A flow passage  3  is formed at a rear side of the mounting wall  1 . The flow passage  3  is a part where air having passed through the mounting wall  1  is collected to flow therethrough. Thus, the mounting wall  1  is configured such that a port  20 , which will be described below, is installed therein, and through-holes (not shown) are formed in the mounting wall  1   
     A fan  3 ′ is installed in the flow passage  3  such that interior air can pass through the flow passage  3  via the port  20 . An outlet pipe  5  is installed at an end of the flow passage  3 , and air purified while passing through the port  20  is exhausted into an interior space through the outlet pipe  5 . 
     A water drainage unit  7  is installed at a lower portion of the mounting wall  1 . Water drainage soil  8  is filled in the water drainage unit  7 , and water may easily flow out through the water drainage soil  8 . However, water does not have to easily flow out through the water drainage soil  8  but the drainage degree of the water drainage soil  8  should depend on the types of set plants. 
     A water storage tank  9  is connected to the water drainage unit  7 . The water storage tank  9  is a part where water used in the plant air cleaner is temporarily collected. That is, the water having passed the water drainage unit  7  may be temporarily stored. 
     Water is supplied to the water storage tank  9  from the outside if necessary. The water in the water storage tank  9  is pressurized by a water supply pump  10  and transferred to the port  20 . A water supply pipe  11  extends from the water storage tank  9  to an upper side of the mounting wall  1  to supply water to the port  20 . The water supply pump  10  is installed in the water supply pipe  11 . 
     Here, a configuration of the port  20  installed in the mounting wall  1  will be described in detail with reference to the accompanying drawings. The port  20  is generally formed of a synthetic resin through injection-molding. The frame of the port  20  is formed by a port body  21 , and the port body  21  has a flat hexahedral shape, one widest area of which is opened and has an interior space  22 . The port body  21  has a plurality of first connecting bars  23  and a plurality of second connecting bars  24  connected thereto. Of course, the entire port body  21  is not configured only by the first connecting bars  23  and the second connecting bars  24 , but the port body  21  is formed by bars extending substantially transversely and longitudinally. 
     The first and second connecting bars  23  and  24  are connected to each other to cross each other at a predetermined angle. In the present embodiment, the first and second connecting bars  23  and  24  are connected to each other to be perpendicular to each other to form the wall of the port body  21  in a grid form. The tetragons of the grid form defined by connecting the first and second connecting bars  23  and  24  perpendicularly to each other have various sizes. Of course, most of them are squares but some are rectangles. The grid wall formed by the first and second connecting bars  23  and  24  makes ventilation and water supply or water drainage (hereinafter, referred to as ‘water supply’) excellent while maintaining vegetation soil s in the interior space  22  of the port body  21 . 
     Body fixing members  26  are formed on opposite surfaces of the port body  21 . The body fixing members  26  are adapted to be coupled to a cover  30 , which will be described below. That is, the body fixing members  26  are coupled to cover fixing members  42 , which will be described below. A detailed description of the body fixing members  26  will be omitted for convenience’ sake. 
     A plurality of body filter holes  28  are formed on the bottom of the port body  21 . The body filter holes  28  penetrate the bottom of the port body  21 , and are formed at locations corresponding to cover filter holes  40 , which will be described below. 
     The cover  30  is mounted to the port body  21  to shield the interior space  22 . In the present invention, the cover  30  has a tetragonal plate shape. The cover  30  has a shape corresponding to the shape of the opened part of the port body  21 , and thus the shape of the cover  30  becomes different if the shape of the opened part of the body  21  is different. 
     A cover frame  32  is formed at a periphery of the cover  30 . The cover frame  32  has a tetragonal shape, and surrounds a part corresponding to an inlet of the port body  21 . First and second connecting bars  34  and  36  are provided to be connected to the cover frame  32 . The first and second connecting bars  34  and  34  are connected to the cover frame  32 , and also are connected to each other at a predetermined angle. In the present embodiment, the first and second connecting bars  34  and  36  are perpendicular to each other such that the wall formed on an inner side of the cover frame  32  has a grid form. As described in the description of the port body  21 , the first and second connecting bars  34  and  36  of the cover  30  also may have various forms of tetragons. 
     A plurality of vegetation holes  38  and a plurality of cover filter holes  40  are formed in the cover  30 . The vegetation holes  38  and the cover filter holes  40  may be arranged in various forms.  FIG. 3B  shows that the vegetation holes  38  and the cover filter holes  40  are arranged in another form. For reference, the cover filter holes  40  are preferably located between the vegetation holes  38 . 
     The cover fixing members  42  are provided at opposite ends of the cover  30 , respectively. The cover fixing members  42  have a shape and a size to be coupled to the body fixing members  26 . That is, if the cover  30  is positioned on and coupled to the port body  21 , the cover fixing members  42  and the body fixing members  26  overlap each other to be integrally assembled. For reference, a structure such as a separate stopping step may be provided to couple the port body  21  and the cover  30 . 
     Soil s is filled in the interior of the port  20 , that is, the interior space  22 . Plants p are set in the soil s. The plants p project to the outside through the vegetation holes  38  while being set in the soil s. 
     Meanwhile, multi-filters  50  pass through the body filter holes  28  of the port  20 , the cover filter holes  40 , and the soil s of the interior space  22 . The configuration of the multi-filter  50  is well shown in  FIG. 6 . A support tubular body  52  forms an outermost side of the multi-filter  50 . The support tubular body  52  has a cylindrical shape, opposite ends of which are opened in the present embodiment. However, the support tubular body  52  may have various tubular shapes which have opened opposite ends. 
     First tubular body bars  54  and second tubular body bars  56  cross each other to form the support tubular body  52  in a grid form. Although the first tubular body bars  54  and the second tubular bars  56  are perpendicular to each other in the present embodiment, they may meet each other at various angles. In this way, as the first and second tubular body bars  54  and  56  are connected to each other to form the support tubular body  52 , air can pass to the interior and exterior of the support tubular body  52 . 
     Distribution bars  58  radially protrude on an outer surface of the support tubular body  52 . The distribution bars  58  are introduced into the soil s. The distribution bars  58  create apertures between the distribution bars  58  and the soil so that air can easily contact microorganisms in the soil s. The distribution bars  58  are formed along an entire outer surface of the support tubular body  52 . 
     A microorganism sheet  59  may be installed to surround the support tubular body  52 . The microorganism sheet  59  is not inevitably necessary, but an air purifying operation can be promoted by the microorganism sheet  59 . For example, the microorganism sheet  59  is a fiber substrate filled with microorganisms for purifying air. The microorganism sheet  59  is attached to an outer surface of the support tubular body  52 , that is, the outer surfaces of the first tubular bars  54  and the second tubular body bars  56  such that the distribution bars  58  pass through the microorganism sheet  59 . 
     A filtering case  60  is located in the interior of the support tubular body  52 . The outer diameter of the filtering case  60  may be equal to or slightly smaller than the inner diameter of the support tubular body  52 . The filtering case  60  has a shape corresponding to the shape of the interior space of the support tubular body  52 . That is, the outer surface of the filtering case  60  is attached to the inner surface of the support tubular body  52 . Opposite lengthwise ends of the filtering case  60  are opened. 
     First case bars  62  and second case bars  64  of the filtering case  60  cross each other to form a grid form. The first and second case bars  62  and  64  may meet each other at various angles. Since the first case bars  62  and the second case bars  64  cross each other to form the filtering case  60 , air can easily flow to the interior and exterior of the filtering case  60 . 
     A first filtering part  66  is provided at an inlet of the filtering case  60 . The first filtering part  66  filters relatively large foreign substances in the air. For example, a mesh net or cloth through which air can pass may be used as the first filtering part  66 . 
     A microorganism filter unit  68  is installed at a rear end of the interior of the filtering case  60 . The microorganism filter unit  68  is similar to the microorganism sheet  59 , and microorganisms are present in a substrate so that air can be purified by microorganisms while passing through the substrate. 
     For reference, the first filtering part  66  and the microorganism filter unit  68  may be installed at any locations in the filtering case  60 , but the first filtering part  66  should be located in front of the microorganism filter unit  68 , considering the flow direction of air. 
     Meanwhile, a plurality of distribution wings  70  are provided in the interior of the filtering case  60  so that the air flowing in the interior of the filtering case  60  can be easily transferred to the soil s. The distribution wings  70  are formed to have a predetermined area in a direction perpendicular to a flow direction of the air in the interior of the filtering case  60 . The distribution wings  70  preferably have disk shapes. The distribution wings  70  serve to guide air to an inner surface of the filtering case  60  to transfer the air to the soil s. 
     In the present embodiment, a plurality of distribution wings  70  are sequentially provided in a wing shaft  72  extending in a lengthwise direction of the filtering case  60 . In the shown embodiment, the distribution wings  70  having different sizes are alternately arranged. The interval between the distribution wings  70  is preferably set to consider flows of air. The width of opposite ends of the distribution wings  70  is smaller than the inner diameter of the filtering case  60 . The distribution wings  70  may be inclined with respect to a flow direction of air. 
     A plurality of connecting legs  74  are provided at one end of the wing shaft  72  having the distribution wings  70  to fix the wing shaft  72  to the filtering case  60 . Since the configuration of fixing the wing shaft  72  to the filtering case  60  with the connecting legs  74  is not the essence of the present invention, a detailed description thereof will be omitted. For example, they may be integrally formed through injection molding. 
     Next, a configuration of another type of port will be described with reference to  FIGS. 9 to 16 . The port  100  of the present embodiment may be used in the above-described plant air cleaner and may be used in afforestation of a vertical wall of an exterior of a building. 
     In the port  100  of the present embodiment, a body  110  injection-molded of a synthetic resin forms an outer appearance of the port  100 . The body  110  has a flat hexahedral shape, and one of the widest areas of the body  110  is opened. A plurality of first connecting bars  114  and a plurality of second connecting bars  116  are connected to a body frame  112  which is the frame of the body  110 . The body frame  112  is provided along peripheries of the surfaces of the body  110  in the present embodiment such that an upper end of the body  110  has a tetragonal shape, a lower end thereof also has a tetragonal shape, and the corners of the tetragonal shapes are connected to each other by bar shapes. 
     The first and second connecting bars  114  and  116  are connected to each other to cross each other at a predetermined angle. In the present embodiment, the first and second connecting bars  114  and  116  are connected to each other to be perpendicular to each other to form the wall of the body  110  in a grid form. The tetragons of the grid form defined by connecting the first and second connecting bars  114  and  116  perpendicularly to each other have various sizes. Of course, most of them are squares but some are rectangles. The grid wall formed by the first and second connecting bars  114  and  116  makes ventilation and water supply or water drainage (hereinafter, referred to as ‘water supply’) excellent while maintaining vegetation soil in the interior space  22  of the port body  21 . 
     A water supply hole  118  is formed on one side surface of the body  110 . The water supply hole  118  is a part for supplying water into the interior of the body  110 . The water supply hole  118  is formed on the narrowest surface of the walls forming the body  110 , and is formed on a surface corresponding to an upper surface when the port  100  is mounted to a port support frame  200 , which will be described below. 
     Body fixing members  120  are formed on opposite side surfaces of the body  110 . Each of the body fixing members  120  includes an extension piece  122  integrally formed on one wall of the body  110  to have a substantially plate shape, and a coupling piece  124  protruding perpendicular to the extension piece  122 . A coupling hole (no reference numeral) for coupling a screw  162  is formed in the coupling piece  124 . 
     The body fixing members  120  are provided on opposite side surfaces of the body  110 , and as shown in  FIG. 12 , locations of the coupling pieces  124 , in more detail, heights of the coupling pieces  124  are different. That is, the left coupling piece  124  is situated at a location higher than the right coupling piece  124  with reference to the drawing. This structure is for coupling adjacent ports  100 . That is, two ports  100  are installed in the port support frame  200  (see  FIG. 14 ) in which the ports  100  are installed to be coupled to each other, in which case the body fixing members  120  couple the left coupling piece  124  of one port  100  and the right coupling piece  124  of the other port  100  which overlap each other. By doing so, the adjacent ports  100  may be coupled to the port support frame  200  with one screw  162 . 
     Next, a cover  130  is provided to shield an opened part of the body  110 . In the embodiment, the cover  130  is formed in a tetragonal plate shape. The cover  130  has a shape corresponding to the shape of the opened part of the body  110 , and the shape of the cover  130  becomes different if the shape of the opened part of the body  110  is different. 
     A cover frame  132  forms a periphery of the cover  130 . The cover frame  132  has a tetragonal shape, and surrounds a part of the body frame  112  forming a periphery of the opened part of the body  110 . That is, the inner surface of the cover frame  132  is sized to surround an outer surface of the body frame  112  forming a periphery of the opened part of the body  110 . Stopping steps  133  stopped by an upper end of the body frame  112  of the body  110  protrude from the inner surface of the cover frame  132 . The outer surfaces of the stopping steps  133  are curved to smoothly cross the outer surface of the body frame  112  of the body  110  so as to be stopped. A plurality of stopping steps  133  are disposed at a predetermined interval along the inner surface of the cover frame  132 . A part of the body frame  112  by which the stopping steps  133  are stopped protrudes further than the other parts to the outside. Of course, stopping recesses by which the stopping steps  133  are caught may be recessed on the outer surface of the body frame  112 . 
     Meanwhile, a coupling piece  133 ′ shown in  FIG. 15  may be used instead of the stopping steps  133  to couple the cover  130  to the body  110 . The coupling piece  133 ′ protrudes from a lower surface of the cover  130  to face the inner surface of the cover frame  132  at a predetermined interval. The interval between the cover frame  132  and the coupling piece  133 ′ is the same as a thickness of the body frame  112  installed along an upper end of the body  110 . The coupling piece  133 ′ has a plate shape, and a stopping step  133 ″ is formed at a tip end of the coupling piece  133 ′ to face the inner surface of the cover frame  132 . The stopping step  133 ″ is stopped by the body frame  112  on the inner surface of the body frame  112  so that the cover  130  is firmly coupled to the body  110 . 
     A plurality of first and second connecting bars  134  and  136  are provided to be connected to the cover frame  132 . The first and second connecting bars  134  and  136  are connected to the cover frame  132 , and are connected to each other at a predetermined angle. In the present embodiment, the first and second connecting bars  134  and  136  are perpendicular to each other such that the wall forming the cover frame  132  forms a grid form. As described in the description of the body  110 , the first and second connecting bars  134  and  136  of the cover  130  may form various tetragons. 
     A plurality of first vegetation holes  138  and a plurality of second vegetation holes  140  are formed in the cover  130 . The first vegetation holes  138  and the second vegetation holes  140  have first rings  139  and  141  having a predetermined diameter. The second vegetation holes  140  have second rings  141 ′ having a diameter larger than that of the first rings  141 . The first rings  141  and the second rings  141 ′ are connected to each other by connecting bars  143 . The connecting bars  143  connect outer surfaces of the first rings  141  and inner surfaces of the second rings  141 ′. At least 4 connecting bars  143  are provided. Here, since the second rings  141  form the second vegetation holes  140  if the first rings  141  are removed by separating the connecting bars  143 , a diameter of the second vegetation holes  140  is larger than that of the first vegetation holes  138 . 
     Cover fixing members  146  are provided at opposite ends of the cover  130 , respectively. The cover fixing members  146  are formed at locations corresponding to the body fixing members  120  of the body  110 . The cover fixing members  146  and the body fixing members  120  are shaped and sized to be coupled to each other. That is, if the cover  130  is positioned on and coupled to the body  110 , the cover fixing members  146  and the body fixing members  120  overlap each other to be integrally formed. 
     Each of the cover fixing members  146  also includes an extension piece  148  and a coupling piece  150 , and the coupling piece  150  extends perpendicularly to a tip end of the extension piece  148 . The coupling pieces  150  at opposite ends of the cover  130  have different heights. A reinforcing piece  149  is formed in the extension piece  148  of the cover fixing member  146 , and the reinforcing piece  149  is also connected to the coupling piece  150 . The reinforcing piece  149  is integrally formed with opposite ends of the extension piece  148  to meet the extension piece  148  at a predetermined angle, and is integrally formed with the coupling piece  150  to meet the coupling piece  150  at a predetermined angle. 
     Next, a port support frame in which the port is installed according to an embodiment of the present invention will be described in detail with reference to  FIGS. 17 to 22 . 
     A support frame body  210  forms the frame of the port support frame  200  according to the present embodiment. The support frame body  210  is formed of a synthetic resin, in more detail, of a bulk molding compound. Such a material has a high strength, a very excellent durability, and an anti-impact property, and can show various colors. Further, the bulk molding compound has a low thermal conductivity and an excellent insulating effect, protecting plants from heat. 
     The support frame body  210  has a plate-shaped bottom plate  212 , and a rear surface of the bottom plate  212  is installed on a front surface of a vertical wall. Opposite ends of the support frame body  210  are inserted into and fixed to mounting rails (not shown), such as section steels having a ‘H’ shaped cross-section, extending from the vertical wall perpendicular to the vertical wall. That is, the mounting rails are provided at opposite ends of the support frame body  210  such that the opposite ends of the support frame body  210  are mounted on and installed in the mounting rails, and a plurality of support frame bodies  210  are sequentially mounted on and installed in the pair of mounting rails. 
     An upper wall  214  protrudes from an upper end of the support frame body  210  along a periphery of the bottom plate  212 , and a lower wall  216  protrudes from a lower end of the support frame body  210 . A plurality of lower openings  216 ′ are formed in the lower wall  216 . The lower openings  216  are formed in port positioning parts  230 , which will be described below, respectively. However, it is not necessary to form one lower opening  216 ′ in one port positioning part  230 , and at least one lower opening  216 ′ may be sufficient. 
     End walls  218  are formed at opposite peripheries of the bottom plate  212 , respectively, to connect the upper wall  214  and the lower wall  216 . Corners of the support frame body  210  where the end wall  218  is connected to the upper wall  214  and the lower wall  216  may be formed to have a curved surface. This is because if the corners of the support frame body  210  are curved, it can be more easily mounted on the mounting rails. 
     A space is defined in the interior of the support frame body  210  by the upper wall  214 , the lower wall  216 , and the opposite end walls  218 . A water pipe passing part  222  is partitioned in the space formed in the interior of the support frame body  210 , by a horizontal partition wall  220  provided parallel to the upper wall  214  near the upper wall  214 . The water pipe passing part  222  is partitioned at an upper end of the support frame body  210  by the upper wall  214  and the horizontal partition wall  220 . The water pipe passing part  222  is partitioned by a plurality of pipe support ribs  224 . The pipe support ribs  224  serve to support pipes installed in the water pipe passing part  222 . To this end, a pipe positioning recess  226  having a substantially semicircular shape is formed at an upper end of each of the pipe support ribs  224 . 
     A plurality of vertical partition walls  228  which are parallel to the end walls  218  protrude from the support frame body  210 . Heights of the vertical partition walls  228  and the horizontal partition wall  220  are smaller than heights of the upper wall  214 , the lower wall  216 , and the end walls  218 . Of course, the upper wall  214 , the lower wall  216 , and the end walls  218  have the same height. In the present embodiment, a total of four vertical partition walls  228  are formed, and a total of five port positioning parts  230  are defined by the vertical partition walls  228 , the end walls  218 , the lower wall  216 , and the horizontal partition wall  220 . Two ports  20  and  100  are positioned in the port positioning parts  230 , respectively, in the present embodiment. 
     The port positioning parts  230  are sized to correspond to the ports  20  and  100 , and a plurality of positioning members  232  protrude in the port positioning parts  230 . The positioning members  232  protrude from the bottom plate  212 , and protrude at parts corresponding to the corners of the ports  20  and  100 , respectively. Since two ports  20  and  200  are positioned on one port positioning part  230  in the present embodiment, a total of eight positioning members  232  are formed. However, in the present embodiment, a total of six positioning members  232  are provided such that the adjacent positioning members  232  are integrally formed. 
     Positioning surfaces  233 , in which the corners of the ports  20  and  100  are positioned, are recessed in the positioning members  232 , respectively. The positioning surface  233  includes two sides of each of the positioning members  232  facing a central side of the port positioning part  230 . Thus, the ports  20  and  100  are installed to have an interval from the bottom plate  212  by a height of the positioning surfaces  233 . The positioning surfaces  233  are not inevitably necessary, but if the positioning surfaces  233  are recessed, the ports  20  and  100  are positioned on the positioning surfaces such that the installation locations thereof are not moved but fixed. 
     Aperture ribs  234  protrude in the port positioning parts  230  to correspond to middle portions of the ports  20  and  100 , respectively. The aperture ribs  234  are not inevitably necessary if the sizes of the ports  20  and  100  are not large. However, the aperture ribs  234  prevent a swelling phenomenon of the ports  20  and  100  so that an aperture can be constantly maintained between the ports  20  and  100  and the bottom plate  212 . The aperture ribs  234  protrude from the bottom plate  212 , and a height of the aperture ribs  234  is the same as the height of the positioning surfaces  233  of the positioning members  232 . Opposite ends of the aperture ribs  234  are connected to the vertical wall  218 , the vertical partition wall  228 , and the vertical partition wall  228 , respectively. 
     Rib openings  234 ′ are formed in the aperture ribs  234 . When water is excessively supplied, the rib openings  234  allow water to drain through the interiors of the port portioning parts  230 . Although two rib openings  234 ′ are formed in one aperture rib  234 , it is not inevitably necessary and one may be enough. 
     Coupling bosses  236  are formed in the vertical partition walls  228 . The coupling bosses  236  are integrally formed with the vertical partition walls  228 , and protrude from opposite surfaces of the vertical partition walls  228  such that lengthwise centers thereof are located at the centers of the vertical partition walls  228 . Coupling holes  237  are formed in the coupling bosses  236 . The coupling holes  237  are parts to which screws (not shown) for coupling the ports  20  and  100  to the coupling bosses  236  are coupled. 
     Hereinafter, the port, the multi-filter used therein, and the port support frame will be described in detail. 
     Purification of air will be described with reference to  FIG. 8 . The ports  20  and  100  according to the embodiment of the present invention are mounted to the mounting wall  1 . Of course, the ports  20  and  100  may be directly mounted to the mounting wall  1  or the ports  20  and  100  may be mounted by the port support frame  200 . 
     A part of the mounting wall  1  corresponding to at least the body filter hole  28  is opened so that the air from the body filter hole  28  of the port  20  and  100  can pass through the opened part of the mounting wall  1 . Thus, if the air fan  3 ′ is operated, the interior air passes through the plants p and the ports  20  and enters the flow passage  3 . Of course, since there is no path for passing air in the port  100  when the port  100  is mounted to the mounting wall  1 , air does not flow through the port  100 . 
     Air is purified in the process of passing air through the plants p and the port  20 . The air is purified by an operation of the leaves of the plants p, and is purified by the roots of the plants p, the microorganisms of the soil s, and the multi-filter  50  while passing through the port  20 . 
     That is, as the air enters the interior of the multi-filter  50 , relatively large foreign substances are filtered first while the air passes through the first filtering part  66 . For example, hair and dust may be present. 
     If the air passes through the first filtering part  66 , the soil s contacts the air through the filtering case  60  and the support tubular body  52 . Of course, the air also contacts the microorganisms of the microorganism sheet  59  surrounding the support tubular body  52  to achieve an air purifying operation. 
     In particular, the distribution wings  70  guide the air flowing through the interior of the filtering case  60  toward the microorganism sheet  59  and the soil s to perform the air purifying operation more smoothly. 
     Meanwhile, an air purifying operation is performed by the microorganisms while the air passes through the microorganism filtering part  68 . The purified air is transferred to the flow passage  3 , and is transferred to the interior through the outlet pipe  5  again. 
     Here, the reason why the multi-filter  50  is firmly fixed to the soil s in the interior of the port body  21  of the port  20  is because the distribution bars  58  are piled deep into the soil s. The distribution bars  58  serve to guide the microorganisms in the soil s toward the multi-filter  50  or guide the air into the soil s. 
     The purification of the air while the air passes through the port  20  of the present invention may be described as follows. That is, the air purification of plants may be largely caused by microorganisms and plant emission materials. 
     First, the air is purified by microorganisms as the microorganisms in the leaves and roots of the plants absorb and remove contaminants. Here, the contaminants absorbed by the leaves are used as metabolism products of photosynthesis, and the contaminants absorbed by the soil are removed by the microorganisms in the roots or microorganisms in the multi-filter  50 . Meanwhile, various plant emitted materials such as negative ions, aromas, oxygen, and moisture emitted from plants make the air comfortable, thereby improving the interior environment. 
     Meanwhile, the port  100  described in  FIGS. 9 and 10  may be used in the above-described plant air cleaner and for afforestation of a vertical wall. The port  100  of the present invention couples the cover  130  to the body  110  while the interior of the body  110  is filled with vegetation soil to prevent the vegetation soil from being leaked to the outside. The stopping step  133  of the cover  130  is stopped by the body frame  112  of the body  110  and the cover fixing members  146  are coupled to the port support frame together with the body fixing members  20 , so that the cover  130  is firmly fixed to the body  110 . 
     If the cover  130  is coupled to the body  110 , the wall in the form of a grid net, which is formed by the first and second connecting bars  114 ,  116 ,  134 , and  136  maintains water supply and ventilation while preventing vegetation soil from being discharged to the outside. 
     Plants are set in the vegetation soil, and the plants protrude to the outside through the first and second vegetation holes  138  and  140 . The first rings  139  and  141  form peripheries of the first and second vegetation holes  138  and  140 , and since a diameter of the first rings  139  and  141  is smaller than the diameter of the second ring  141 ′, they are used when relatively small plants are set. When relatively large plants are set, the second ring  141 ′ forms a periphery of the second vegetation hole  140  by cutting the connecting bar  143  and removing the first ring  141 . In this way, relatively large plants can be set in the port. 
     The port  100  is mounted to the interior of the port support frame  200  as shown in  FIG. 14 . The body fixing member  120  and the cover fixing member  146  of the port  100  are coupled and fixed to the port support frame  200  together with those of the adjacent port  100  by the screw  162 . Then, since the body fixing member  120  and the cover fixing member  146  provided at opposite ends of the port  100  have different heights, the body fixing members  120  and the cover fixing members  146  of the adjacent ports  100  overlap each other, and accordingly, when the ports  100  are mounted to the port support frame  200 , the front surfaces of the ports  100 , that is, the cover  130  is located on the same plane on the whole. 
     The port support frame  200  is installed such that the opened front surface thereof faces a front side of the vertical wall, and the ports  100  are mounted to the port support frame  200 , such that the vegetation holes  138  and  140  of the cover  130  face a front side of the vertical wall so that the vertical wall can be planted with trees protruding through the vegetation holes  138  and  140 . 
     An upper portion of the port  100  installed in the port support frame  200 , that is, a part of the port  100  where the water supply hole  118  faces a gravitational upper side. Accordingly, the water supplied from the pipe passing through the port support frame  200  enters the interior of the port through the water supply hole  118  to be transferred to the vegetation soil, while being supplied continuously. 
     Meanwhile,  FIG. 16  shows that a coupling bracket  164  is used in coupling two ports at the same time. That is, the coupling bracket  164  is used when two ports  100  are coupled to the port support frame  200 . In the coupling bracket  164 , stopping plates  168  are provided at opposite sides of a ‘U’-shaped coupling part  166 . A screw  162  passes through a center of the coupling part  166  and is coupled to the port support frame  200  such that the stopping plate  168  is stopped by the covers  130  of the ports. In this way, since the screw  162  and the coupling bracket  164  couple the ports dually, the coupling state of the port becomes firm. 
     Next, the port support frame  200  shown in  FIG. 17  will be described. The port support frame  200  is mounted on and installed in a plurality of pairs of mounting rails vertically installed in the vertical wall. A plurality of mounting rails are vertically disposed in rows in the vertical wall, and the port support frames  200  are sequentially installed between the mounting rails to be installed in the entire vertical wall. Opposite ends of the support frame body  210  of the port support frame  200  are hung on the mounting rails. In this way, the interior of the support frame body  210  is opened toward the front side of the vertical wall. 
     A water pipe (not shown) and the ports  20  and  100  are installed in the water pipe passing part  222  and the port positioning part  230  of the support frame body  210 , respectively. In addition to the water pipe, optical fibers or wirings for illumination may be installed in the water pipe passing part  222 . 
     Four corners of the ports  20  and  100  are positioned on the positioning surfaces  233  of the positioning members  232  in the port positioning part  230  of the support frame body  210 . Thus, the four corners of the ports  20  and  100  are located on the positioning surfaces  233  of the positioning members  232  to be fixed so as not to be arbitrarily moved. 
     Since the vegetation soil is in the interiors of the ports  20  and  100  and plants are set in the vegetation soil, the vertical wall is afforested if the plants grow while the ports  20  and  100  are installed in the port positioning part  230 . 
     While the ports  20  and  100  are installed in the port positioning parts  230  of the support frame body  210 , certain intervals are formed between the rear surfaces of the ports  20  and  100  and the inner surface of the port positioning parts  230 . This is because the four corners of the ports  20  and  100  are positioned on the positioning surfaces  233  of the positioning members  232  and are positioned on the aperture ribs  234 . 
     Thus, certain apertures are formed between the ports  20  and  100  and the bottom plate  212  of the support frame body  210 . Air is filled in the apertures to secure ventilation in summer, thereby helping vegetate the plants in the ports  20  and  100  excellently. The air in the apertures keeps the plants warm excellently, and the roots of the plants in the ports  20  and  100  prevent cold-weather damage. Further, the apertures may form a path through which air flows on the rear side of the ports  20  when the ports  20  and  100  are used in a plant air cleaner. 
     In addition, the apertures between the ports  20  and  100  and the bottom plate  212  serve to discharge water more smoothly when water is excessively supplied. That is, water flows through the apertures between the ports  20  and  100  and the bottom plate  212 , the rib openings  234 , the apertures between the ports  20  and  100  and the bottom plate  212 , and the lower opening  216 ′ of the lower wall  216 . 
     Meanwhile, the water transferred from the water pipe passing through the water pipe passing part  222  passes through a water supply opening  220 ′ of the horizontal partition wall  220  to be supplied to the ports  20  and  100 . For reference, the water pipe extends to an adjacent support frame body  210  through a pipe opening  222 ′. 
     If time elapses and the plants in the ports  20  and  100  grow while the ports  20  and  100  are positioned on the port positioning parts  230 , afforestation is performed. To this end, water is continuously supplied to the ports  20  and  100 . That is, the water supplied through the water pipe is transferred from the water pipe passing part  222  to the ports  20  and  100  through the water supply opening  220 ′. The water transferred to the ports  20  and  100  is used to vegetate the plants. 
     Next, if any one of the plants in the ports  20  and  100  fails to grow properly or one of the ports  20  and  100  is damaged, only the defective port  20  or  100  may be separated and replaced. This can be achieved by separating the screw coupled to the coupling boss  236 , withdrawing the corresponding port  20  or  100 , and mounting another port  20  or  100  to couple the port  20  or  100  to the coupling boss  236  with a screw. 
     The scope of the present invention is not limited to the above-described embodiments but defined by the claims, and it is obvious that those skilled in the part to which the present invention pertains can variously modify and change the embodiments without departing from the scope of the present invention which is claimed in the claims. 
     For example, although it has been described that the microorganism sheet  59  is installed to surround the outer surface of the support tubular body  52  in the embodiment, the support tubular body  52  may be installed to surround the inner surface of the support tubular body  52 . 
     The shape of the body  110  may not be a flat hexahedral shape. The body  110  may have various shapes. 
     Further, the heights of the coupling pieces  124  and  150  of the body fixing members  120  and the cover fixing members  146  formed at opposite sides of the port  100  are not necessarily different, and may have the same height to be coupled to the port support frame separately at different locations. However, in this case, the number of screws  162  is large and the number of manufacturing processes also is large. 
     Furthermore, the water pipe passing part  222  is not necessarily formed between the horizontal partition wall  220  and the upper wall  214 . A configuration through which a pipe can pass may be formed at a location corresponding to an upper part of the upper wall  214 , and the water pipe passing part  222  may not be separately installed and may pass between the ports  20  and  100 . 
     INDUSTRIAL APPLICABILITY 
     The port for a vertical wall, the multi-filter, and the port support frame according to the present invention may be used to afforest a vertical wall such as an outer wall of a building, and the interior of a building can be afforested and air can be cleaned by configuring a plant air cleaner for purifying air by using plants in the building.