Patent Publication Number: US-2015060345-A1

Title: Filtering apparatus

Description:
FIELD 
     The present disclosure relates to a filtering apparatus. 
    
    
     BACKGROUND 
     Cutting fluid is used in machine work. The cutting fluid usually is filtered by a conventional filtering apparatus. The conventional filtering apparatus includes a filter mounted in the filtering apparatus by welding or riveting. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an exploded, isometric view of an embodiment of a filtering apparatus, wherein the filtering apparatus includes a plurality of pressing members and a fastening member. 
         FIG. 2  is an enlarged view of a circled portion II of  FIG. 1 . 
         FIG. 3  is an enlarged, isometric view of one of the pressing members of  FIG. 1 . 
         FIG. 4  is a partial, enlarged view of the fastening member of  FIG. 1 . 
         FIG. 5  is an assembled, isometric view of the filtering apparatus of  FIG. 1 . 
         FIG. 6  is a cross-sectional view of  FIG. 5 , taken along line VI-VI. 
         FIG. 7  is a partial, enlarged view of  FIG. 6 . 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.” 
       FIGS. 1 and 2  illustrate an embodiment of a filtering apparatus  100  comprising a bracket  10 , a substantially rectangular filter  20 , four pressing members  30 , and a substantially rectangular fastening member  40 . 
     The bracket  10  comprises a substantially rectangular bottom frame  11  and four side walls  12  perpendicularly extending up from four sides of the bottom frame  11 . The bottom frame  11  comprises four supporting plates  13  perpendicularly extending inward from bottom sides of the side walls  12  and four positioning plates  14  perpendicularly extending up from distal sides of the supporting plates  13  away from the side walls  12 . The side walls  12 , the supporting plates  13 , and the positioning plates  14  cooperatively bound an annular installing recess  15 . A junction of each side wall  12  and the corresponding supporting plate  13  defines a plurality of latching holes  121 . A junction of each supporting plate  13  and the corresponding positioning plate  14  defines a plurality of fastening holes  141 . A plurality of locking blocks  123  protrudes out from an upper portion of an outer surface of each side wall  12 . Each locking block  123  comprises a locking surface  1231  formed on a bottom of the locking block  123 , and a guiding surface  1232  formed on a top of the locking block  123 . A plurality of ribs  111  can be connected between the positioning plates  14 . Each side wall  12  defines a plurality of through holes  124  for allowing cutting fluid to flow through. 
     The filter  20  is made of flexible material, such as pliable wire netting. The filter  20  comprises a substantially rectangular bottom plate  21 , four side plates  22  perpendicularly extending up from four sides of the bottom plate  21 , and four L-shaped flanges  23  extending out from top sides of the side plates  22 . Each flange  23  and the corresponding side plate  22  cooperatively bound a latching slot  24  with an opening  241  (shown in  FIG. 7 ) adjacent to the bottom plate  21 . The bottom plate  21  and the side plates  22  define a plurality of filtering holes (not shown). 
       FIG. 3  shows one of the pressing members  30 , which comprises a substantially rectangular pressing plate  31 , a first bar  32  extending perpendicularly downward from a first side of the pressing plate  31 , and a second bar  33  extending perpendicularly downward from a second side of the pressing plate  31  opposite to the first bar  32 . The first bar  32  comprises a plurality of resilient fastening portions  321 . The second bar  33  comprises a plurality of resilient latching portions  331 . Two hemispherical protrusions  3211  protrude from each fastening portion  321 , and two hemispherical protrusions  3311  protrude from each latching portion  331 . 
       FIGS. 1 and 4  illustrate the fastening member  40 , which comprises a shell  41 . 
     The shell  41  comprises four side plates  411  connected end to end and four fastening portions  44  having L-shaped cross-sections protruding inward from inner surfaces of the side plates  411 . Each fastening portion  44  comprises a top plate  442  perpendicularly extending inward from the corresponding side plate  411  and an extending plate  441  perpendicularly extending down from a distal side of the top plate  442 . Each fastening portion  44  and the corresponding side plate  411  cooperatively bound a receiving slot  42 . A plurality of ribs  46  is connected between the side plate  411  and a top of the corresponding top plate  442 . A plurality of resilient hooks  43  extends downward from a bottom of each side plate  411 . Each hook  43  comprises a resilient extending portion  431  and a latching portion  432  protruding inward from a bottom end of the extending portion  431 . Four guiding plates  45  extend slantingly from tops of the side plates  411 , for guiding the cutting fluid. 
       FIGS. 5-7  illustrate an assembled filtering apparatus  100 . As illustrated, the filter  20  is received in the bracket  10  with the bottom plate  21  being deformed and supported on the supporting plates  13  and the ribs  111 . The side plates  22  of the filter  20  engage with inner surfaces of the side walls  12 . The pressing members  30  are placed on the bottom plate  21 , and pressed in the installing recess  15 . The protrusions  3211  of the fastening portions  321  of each pressing member  30  are latched in the corresponding fastening holes  141  of the bracket  10 , and the protrusions  3311  of the latching portions  331  of each pressing member  30  are latched in the corresponding latching holes  121  of the bracket  10 . Four edges of the bottom plate  21  of the filter  20  are sandwiched between the supporting plates  13  and the pressing members  30 . 
     Tops of the side walls  12  are inserted in the latching slots  24  of the filter  20  from the corresponding openings  241 . The fastening member  40  is covered on the filter  20 , and the tops of the filter  20  and the side walls  12  are inserted in the corresponding receiving slots  42  of the fastening member  40 . The fastening member  40  is pressed toward the bracket  10 . The latching portions  432  of the hooks  43  slidably abuts against the guiding surfaces  1232  of the corresponding locking blocks  123 , to deform the extending portions  431 , until each latching portion  432  crosses through the corresponding locking block  123 . The extending portions  431  are restored to bias the latching portions  432  to engage with the locking surfaces  1231 . The flanges  23  of the filter  20  are sandwiched between the side walls  12  and the fastening portions  44  of the fastening member  40 . 
     To detach the filter  20 , each hook  43  is pulled away from the corresponding side wall  12 , deforming the extending portions  431 , until the hooks  43  are detached from the locking blocks  123 . The fastening member  40  is detached from the bracket  10 . Each pressing member  30  is pulled away from the bottom frame  11 , deforming the fastening portions  321  and the latching portions  331 , until the pressing members  30  are detached from the installing recess  15 . It is convenient to disassemble the filter  20  from the bracket  10 . 
     The filter  20  is installed by the pressing members  30  and the fastening member  40  is detachably latched to the bracket  10 , so it is convenient to assemble or disassemble the filter  20 . 
     Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and the functions of the embodiments, the disclosure is illustrative only, and changes may be made in details, especially in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.