JP5816207B2 - Dust removal filter - Google Patents

Description

  The present invention relates to a dust removal filter, and more particularly, to a dust removal filter attached to a flow path of a lot of floating dust such as an inlet of a rainwater storage tank or a drainage groove.

  Conventionally, a filter for removing dust is provided in a groove in which a lot of dust flows as described above. For example, in the dust removal filter described in Patent Document 1, a support frame provided with a plurality of needle-like protrusions on one side is attached to a groove with the needle-like protrusions directed upstream, and a net is attached to the support frame. The needle-like projections of the support frame are attached by penetrating the mesh. The support frame and the net are attached to the grooves so that dust does not leak in a direction substantially perpendicular to the direction in which the fluid flows.

No. 7-35899

  However, the conventional dust removal filter has a problem in that the mechanical strength of the needle-like protrusions is not sufficient and the durability is inferior, particularly when formed of a resin or the like.

  In addition, when removing the net from the support frame, there is a risk of injury to the hand due to the needle-like protrusion, and it is necessary to move the net against the flow of fluid, so there is room for improvement in terms of handling. there were.

  Furthermore, when a large amount of dust is caught on the needle-like protrusions, the flow path of the fluid becomes narrow, and it may be difficult to secure a desired flow rate.

  Therefore, the present invention has been made in view of the above problems in the conventional dust removal filter, and is excellent in durability, easy to handle, and ensures a desired flow rate even when a large amount of dust is caught. An object of the present invention is to provide a dust removal filter that can be used.

In order to achieve the above object, the present invention provides a dust removal filter, a filter member disposed on the upstream side of the flow path, and a holding member disposed on the downstream side of the filter member to hold the filter member. The filter member includes a filter portion in which a plurality of long and short protrusions are alternately arranged in succession and formed in a planar shape with a plurality of intervals, and a filter portion that is continuous with the outer periphery of the filter portion And the holding member has a holding portion that holds the frame body while covering the opening of the frame body of the filter member, and an opening formed in the holding portion. A tubular outflow portion erected from the portion, the frame of the filter member is formed in a frame shape having four wall surfaces extending in the protruding direction of the long and short protrusions of the corrugated protrusion, On the bottom of the four wall surfaces Characterized Rukoto which having a plurality of openings spaced intervals.

According to the present invention, the filter portion of the filter member is constituted by the corrugated protrusion formed by alternately arranging a plurality of long and short protrusions, so that dust is caught at the tip of the long and short protrusions, A fluid passage can be secured between the opening of the filter part on the base side and the dust, and fluid can also flow in from the opening part of the holding part. Garbage can be removed while ensuring. In addition, fluid can be allowed to flow in from a plurality of openings arranged at intervals in the bottom surface portion of the four wall surfaces, and a desired flow rate can be maintained even when a large amount of dust is caught on the filter portion. Can do.

  In addition, since a plurality of long and short protrusions are alternately arranged to form a corrugated protrusion, the mechanical strength is superior to the case where the protrusion is formed in a needle shape, and dust caught on the filter member is removed. Safety during work is ensured.

  In the dust removal filter, a handle may be provided on the upper surface of the frame body of the filter member so that the filter member can be removed vertically with respect to the holding member. Accordingly, the filter member can be easily detached from the holding member simply by lifting it in a direction substantially perpendicular to the direction in which the fluid flows.

  As described above, according to the present invention, it is possible to provide a dust removal filter that is excellent in durability, easy to handle, and can secure a desired flow rate even when a large amount of dust is caught.

It is a perspective view of each of the filter member and holding member which comprise the dust removal filter which concerns on this invention. It is a perspective view which shows the stage in the middle of combining the filter member and holding member which are shown in FIG. It is a perspective view which shows the state which formed the dust removal filter combining the filter member shown in FIG. 1, and a holding member. It is a perspective view which shows a filter member, Comprising: (a) shows the state seen from the back side of the wavy protrusion, (b) from the wavy protrusion side. It is a figure which shows a filter member, Comprising: (a) is a front view, (b) is a bottom view, (c) is a side view. It is a perspective view which shows a holding member, Comprising: (a) is the state seen from the opening side of the outflow part, (b) shows the state seen from the outflow part side. It is a figure which shows the holding member 3, Comprising: (a) is a front view, (b) is a bottom view, (c) is a side view. It is a schematic perspective view which shows the use condition of the dust removal filter which concerns on this invention. It is a perspective view which shows an example of the conventional dust removal filter. It is a perspective view which shows the other example of the conventional dust removal filter.

  Next, modes for carrying out the present invention will be described with reference to the drawings.

  1 to 3 show an embodiment of a dust removal filter according to the present invention. The dust removal filter 1 includes a filter member 2 disposed on the upstream side of the flow path, and a downstream side of the filter member 2. The dust removal filter 1 is formed by including the holding member 3 to be disposed and integrating them.

  The filter member 2 is integrally formed of, for example, resin, and includes a filter portion 24 and a frame body 27 that is continuous with the outer peripheral portion of the filter portion 24 as shown in FIGS. 4 and 5.

  The filter unit 24 is configured by arranging a plurality of corrugated protrusions 23 formed by arranging a plurality of long and short protrusions 21 and 22 continuously in a plane with a plurality of intervals therebetween. A slit 30 is formed between them.

  The frame 27 is formed in a frame shape having four wall surfaces extending in the protruding direction of the long and short protrusions 21 and 22, and a handle 26 and a protruding portion 27b are provided on the upper surface 27a. A plurality of ribs 28 and 29 are linearly provided between the filter portion 24 and the frame body 27. A plurality of openings 25 are formed in the lower surface 27c.

  The holding member 3 is integrally formed of, for example, resin, and holds the frame 27 while covering the opening 27d (see FIG. 5C) of the frame 27 of the filter member 2 as shown in FIGS. A plate-like holding portion 31 and a cylindrical outflow portion 33 erected from the holding portion 31 with a circular opening 32 formed in the holding portion 31.

  The holding part 31 is formed in a rectangular plate shape as a whole, a bent part 35 protrudes from an edge part on both side surfaces, and a guide part 34 is integrally formed from the bent part 35 toward the inside. The holding portion 31 is provided with a round hole 36 for attaching the entire holding member 3 to the entrance of the rainwater storage tank, long holes 37 to 39, and a slit 31c, and between the holding portion 31 and the outflow portion 33. Is provided with a plurality of ribs 31a.

  In order to assemble the filter member 2 and the holding member 3, as shown in FIG. 1, the lower end of the filter member 2 is inserted between the guide portion 34 and the holding portion 31 on the upper portion of the holding member 3, and the filter member 2 is left as it is. As shown in FIG. 2, the protrusion 27b of the filter member 2 is brought into contact with the upper end 31b of the holding member 3 to complete the assembly. The assembled state is shown in FIG.

  To use the dust removal filter 1, for example, as shown in FIG. 8, the holding member 3 is attached to the rainwater storage tank inlet pipe 50 or the like using a circular hole 36 or the like, and the filter member 2 is attached to the holding member 3. Just wear it.

  Next, a comparison test between the dust removal filter 1 having the above configuration and the two conventional dust removal filters shown in FIGS. 9 and 10 will be described.

  The dust removal filter shown in FIG. 9 includes a ring-shaped attachment portion 64, a filter portion 62 formed of a hemispherical mesh, and a mounting member 63 provided on the attachment portion 64 so as to cover an end opening of a pipe or the like. The attachment portion 64 is attached to the pipe, and the dust removal filter 61 is fixed to the pipe or the like by the attachment member 63.

  The dust removal filter shown in FIG. 10 includes a filter member 73 disposed on the upstream side of the flow path and a holding member 72 disposed on the downstream side of the filter member 73 in the same manner as the dust removal filter 1 according to the present invention. The dust removal filter 71 is formed by integrating these. The dust removal filter 71 is different from the dust removal filter 1 according to the present invention in a filter member 73. In the present invention, the corrugated protrusions 23 are formed by the long and short protrusions 21 and 22, and a plurality of corrugated protrusions 23 are formed. A plurality of slits 30 are formed between them, but the dust removal filter 71 is provided with a number of vertically long slits 75. The fluid that has passed through the slit 75 flows out through the holding member 72 to the opposite side of the filter member 73.

  As shown in Fig. 8, the water is stored in the water tank in which the dust removal filter 1 is set, the dust is added, water is added until the filter is clogged, and then the water level is adjusted to a certain level. The amount (flow rate) was compared with three dust removal filters. As waste, two types of waste (vinyl string) and sinking waste (vegetation leaves) were used, and a total of six tests were conducted. The results are as follows.

(1) In the case of floating waste The dust removal filter 1 according to the present invention has a water flow rate of 1.75 times that of the conventional dust removal filter 61 and 1.26 times that of the dust removal filter 71.
(2) In the case of sinking dust The dust removal filter 1 according to the present invention has a water flow rate of 1.85 times that of the conventional dust removal filter 61 and 1.61 times that of the dust removal filter 71.

  Thus, the dust removal filter 1 according to the present invention can secure a larger amount of water flow than the conventional dust removal filters 61 and 71, and is particularly effective for sinking dust.

DESCRIPTION OF SYMBOLS 1 Waste removal filter 2 Filter member 3 Holding member 21 Long protrusion 22 Short protrusion 23 Waveform protrusion 24 Filter part 25 Opening 26 Handle 27 Frame 27a Upper surface 27b Projection part 27c Lower surface 27d Opening part 28, 29 Rib 30 Slit 31 Holding part 31a Rib 31b Upper end part 31c Slit 32 Opening part 33 Outflow part 34 Guide part 35 Bending part 36 Round hole 37-39 Long hole 50 Piping

Claims (2)

A filter member disposed on the upstream side of the flow path, and a holding member disposed on the downstream side of the filter member to hold the filter member,
The filter member includes a filter portion in which a plurality of corrugated protrusions formed by alternately arranging a plurality of long and short protrusions are arranged in a plane with a plurality of intervals, and a frame body continuous to the outer peripheral portion of the filter portion. And
The holding member includes a holding portion that holds the frame body while covering the opening portion of the frame body of the filter member, and a cylinder that is erected from the holding portion and has an opening portion that is formed in the holding portion. In the shape of an outflow part ,
The frame of the filter member is formed in a frame shape having four wall surfaces extending in the protruding direction of the long and short protrusions of the corrugated protrusions, and is arranged with a space between the bottom surfaces of the four wall surfaces. dust removing filter, characterized in Rukoto which having a plurality of apertures.   2. The dust removal filter according to claim 1, wherein a handle is provided on an upper surface of the frame body of the filter member so that the filter member can be removed vertically with respect to the holding member.

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