KR101907892B1 - A stink blocking device that be opened and closed automatically - Google Patents

Abstract

The present invention relates to an automatic opening/closing type malodor blocking device to block backflow of malodor through a space part. According to the present invention, the automatic opening/closing type malodor blocking device comprises: a base body part having a support plate vertically bent to a lower side on both front and rear sides of the inner circumferential surface of a base plate mounted on the upper inlet portion of a manhole, wherein a central support bolt inwardly protrudes from the lower central portion of front and rear support plates; a malodor prevention part, wherein left and right side opening/closing plates, which is opened/closed while being inclined to the diagonal inner lower side on both left and right sides between the front and rear support plates, has a hinge shaft protruding from both front and rear sides of a top part to be hinge-coupled to an end portion of both left and right sides of the upper part of the front and rear support plate, a bottom part is supported by the central support bolt without misalignment while being in contact with each other, an external extended plate is obliquely bent to the diagonal outer lower side on the top part of the left and right opening/closing plates, one or a plurality of reinforcement plates of a stacked state are assembled and coupled to the external extend plate by a plurality of coupling bolts and nuts, and one or a plurality of balance weights are inserted into the coupling bolt, such that the left and right opening/closing plate opened by a load of an inflow matter is automatically closed by a load of the balance weight; and left and right hiding plates to hide a space part spaced between the upper part of the left and right opening/closing plate, and the left and right inner circumferential surfaces of the base plate while being assembled and coupled to both left and right sides of the inner portion of the base plate to protrude to the inside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a self-

The present invention relates to a method and apparatus for preventing the backflow of various kinds of insects and rats, such as a manhole or a drainage manhole buried in a roadside to discharge rainwater or sewage to a drain pipe, And a base plate which is seated on the upper inlet portion of the manhole by a horizontally positioned rectangular plate, and more particularly, A base body portion provided on both sides of the inner circumferential surface of the base plate so as to bend the support plate vertically downwardly and provided with a central support bolt protruding inward in the central portion of the lower portion of the front and rear support plates, Left and right opening / closing plates that are opened and closed while being inclined downward, and the left and right opening / The hinge shafts are respectively protruded from both ends of the end portions so as to be hinged to both left and right ends of the upper and lower support plates. The lower ends of the hinge shafts abut against each other and are supported by the central support bolts without being shifted. On the upper ends of the left and right opening / Wherein one or a plurality of reinforcing plates are stacked on the outer edge plate and are assembled by a plurality of fastening bolts and nuts and one or a plurality of equilibrium holdings are further detachably fastened to the fastening bolts, The left and right opening and closing plates opened by the load are automatically closed by the load of the balance holding spindle, and the left and right side openings of the left and right openings and closings of the base plate Left and right shielding plates for shielding the spaced-apart spaces between the inner circumferential surfaces The present invention relates to an automatic openable and closable type malodor shielding device.

Generally, a manhole such as an excellent manhole or a drainage manhole or a house correction is installed on the road side so that rainwater or sewage flowing along the bottom surface of a road or the like is collected and discharged to the drainage pipe. Shaped grating of a metal material is formed on the upper surface of the manhole, and a circular opening upper inlet is formed in the upper part of the manhole, and a latching end is formed in the inner circumferential surface of the upper inlet. And a common drain pipe is provided at one side of the lower portion of the manhole so that rainwater or sewage flowing along the bottom surface of the road or the like flows into the manhole through the grating, And is discharged.

However, the conventional manholes such as the above-described manholes, drainage manholes, and dust collectors are supplied with various kinds of foreign substances together with rain water and sewage, and various kinds of foreign substances and sediments are formed on the inner bottom surface of the manhole It is piled up and always has a constant height of sewage so that various foreign substances, sediments and sewage are kept for a long time and rotting phenomenon occurs, and the bad odor generated from this is backflowed and discharged through the grating type grating to pass along the road side There was a problem that caused severe discomfort to the people.

As a conventional technique for solving the above problems, Korean Utility Model Registration No. 20-0469934, which is a Korean Registered Utility Model Registration No. 20-0469934, is provided with a horizontally positioned plate-shaped upper plate having a plurality of drain holes perforated at front, rear, A grating body fixedly attached to the upper and lower sides of the upper surface of the upper surface of the upper surface of the upper surface of the grating body with a side plate fixed to the lower surface of the upper surface of the upper surface and spaced apart from the side plate by a predetermined distance; A safety grating comprising a plurality of safety supporting members fixedly attached between drain holes perforated at regular intervals at left and right sides of the bottom portion and covering a plurality of drain holes at a predetermined distance apart from each other; The safety grating includes a frame having a frame shape corresponding to a lower portion of the safety grating and an inlet port formed at an upper portion of the inner plate at a central portion thereof. The front and rear plates are fixedly attached to the front and rear sides of the inner frame, And an upper swash plate inclined downward inward is fixedly attached to the upper portion between the front and rear plates on both left and right sides of the inner surface of the seat frame, A malodor shielding body provided with a swash plate fixedly attached thereto and forming an outlet between the lower end of the upper swash plate and the lower end of the lower swash plate; and an inflow port provided in the outlet port for introducing into the inside of the malodor shielding body through the drain hole of the safety grating, Left and right open / close plates for discharging water into the manhole and keeping the closed state by its own weight Luer dark manholes safety malodor blocking apparatus, characterized in that the odor-part cut off is disclosed.

However, in the above-described prior art, the front and rear plates, the upper swash plate and the lower swash plate fixedly attached to the lower portion between the front and rear plates are fixedly cut and formed in a predetermined shape, respectively, In the case that string, vinyl, cloth or the like is introduced along with rainwater or sewage among the influent, there is a problem that the lower left and right lower slopes and the center There is a problem that the left and right opening and closing plates are not properly touched by a string, a vinyl, cloth, or the like, and the odor and the like flow backward.

In addition, in the above-mentioned prior art, a groove is formed in the lower part of the right and left open / close plates and the weight of the open / close plate is raised and raised by a simple method of attaching the weight to the groove. However, It is difficult to open the open / close plate naturally, so that the inflow water remains in the inner side for a long time and the bad odor generated therefrom flows backward, and when the self weight of the left and right open / There is a problem in that it is very difficult to balance the load of the opening and closing plate and the opening and closing of the opening and closing plate so that the left and right opening and closing plates are naturally opened and closed when the inflow is introduced.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a base plate for a flat plate, wherein the center portion of the base plate is cut in an "X " shape, The left and right opening and closing plates are provided on both left and right sides between the front and rear support plates so as to be inclined downward from the inside diagonal line. An outer curved plate is formed on the upper end of the left and right opening and closing plates so as to be inclined downward from the outer diagonal, A plurality of bolts and nuts are assembled and fastened while the reinforcing plates are laminated, and one or a plurality of balance retaining weights are detachably fastened to the fastening bolts so that the left and right opening and closing plates, which are opened by the load of the inflow, And on both left and right sides of the inner frame portion of the base plate The purpose of the present invention is to block the reverse flow of odor and the like through the space by interposing the left and right cover plates protruding inward by a plurality of piece nails respectively and assembling them so as to cover the space portion between the upper portion of the right and left open / close plate and the left and right inner peripheral surfaces of the base plate. have.

In order to achieve the above object, there is provided a base plate which is horizontally positioned at the upper entrance of a manhole and which is seated on both sides of the inner circumference of the base plate, The left and right opening and closing plates are respectively provided at both sides of the front and rear sides of the upper and lower portions of the hinge shaft, respectively. The base body portion is provided with a central supporting bolt projecting inwardly and left and right sides between the front and rear support plates. And the lower end portions are supported by the central support bolt so as not to be misaligned with each other while being in contact with each other, and the outward extending plate is bent at an upper end portion of the left and right opening and closing plates so as to be inclined downward from the outer diagonal, One feast on the feast A plurality of reinforcing plates are stacked and assembled by a plurality of fastening bolts and nuts, and one or a plurality of equilibrium holdings are detachably fastened to the fastening bolts so that the left and right opening and closing plates, which are opened by the load of the inflow, And a pair of left and right shielding plates for shielding the spaced spaces between the left and right inner peripheral surfaces of the left and right openable and closable plates and the left and right inner peripheral surfaces of the base plate while being assembled so as to protrude inwardly on both left and right sides, The present invention has the feature of the present invention.

As described above, according to the present invention, the center portion of the base plate made of a flat plate is cut in the shape of "X ", and the left and right portions cut out are cut and removed while the front and rear portions are bent and bent downward. The left and right opening and closing plates are provided on both left and right sides between the front and rear support plates so as to be inclined downward from the inside diagonal line. The outward extending plate is bent at an upper end portion of the left and right opening and closing plates so as to be inclined downward from the outer diagonal line, and one or more reinforcing plates The left and right opening and closing plates, which are fastened to the respective fastening bolts so as to be detachably attached to one or more of the balance retaining members so as to be opened by the load of the inflow, are automatically closed by the load of the balance retaining weights, Weight of opening / closing of left and right opening / And the left and right shielding plates are assembled so as to be protruded inward by a plurality of piece nails on both left and right sides of the inner plate portion of the base plate so that the spaced spaces between the upper portions of the left and right opening plate and the left and right inner peripheral surfaces of the base plate It is possible to block the backflow of odor and the like through the space portion.

1 is a perspective view illustrating a disassembled state of the automatic on-off type malodor shielding device according to the present invention.
2 is a perspective view showing a state in which left and right side cover plates are assembled to a base plate of an automatic on-off type malodor screening apparatus according to the present invention.
FIG. 3 is a perspective view schematically showing an assembled state of the automatic on-off type malodor shielding device according to the present invention.
4 is a perspective view showing a state in which the grating is seated on the automatic opening and shutting type odor screening device according to the present invention.
FIG. 5 is a perspective view showing a disassembled state of left and right open / close plates in the automatic on-off type malodor shielding apparatus according to the present invention.
FIG. 6 is a schematic cross-sectional view showing an assembly state of the automatic on-off type malodor shielding device according to the present invention
Fig. 7 is a perspective view of a strap in a state in which a bending prevention plate is assembled to front and rear support plates of the automatic opening and shutting type odor-
8 is a schematic cross-sectional view showing a state in which the automatic openable and closable type malodor shielding device according to the present invention is installed in a normal manhole and the left and right open /
9 is a sectional schematic view showing a state in which the automatic opening and closing type malodor shielding device according to the present invention is installed in a normal manhole and the left and right open /

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

The automatic openable and closable type malodor shielding apparatus 1 of the present invention is a malfunction isolation apparatus for an automatic opening and closing type as shown in FIGS. 1 to 8, in which an excellent manhole or a drainage manhole buried in a roadway for discharging rain water, sewage, And is installed at the upper entrance of the manhole (11) such as a house collecting unit to shut off various kinds of pests, rats, mosquitoes and the like, and can easily and quickly assemble the whole manufacturing process without welding And a base plate 3 which is horizontally positioned on the upper inlet of the manhole 11. The support plate 4 is bent vertically downward on both sides of the inner circumferential surface of the base plate 3 A base body portion 2 provided at the central lower portion of the front and rear support plates 4 so as to protrude inwardly and a central support bolt 5 projecting inwardly and sloping downward in the inner diagonal direction on both left and right sides between the front and rear support plates 4 Left and right opening and closing plates 16 are provided on both sides of the upper and lower ends of the upper and lower support plates 4 so as to be hinged to both left and right ends of the front and rear support plates 4, And an outer curved plate 18 is bent at an upper end of the left and right opening and closing plates 16 so as to be inclined downward from an outer diagonal line, One or a plurality of reinforcing plates 19 are stacked and assembled by a plurality of fastening bolts 20 and a nut 21 and one or a plurality of balance retaining weights 22 are attached to and detached from the fastening bolts 20 And the left and right opening and closing plates 16 that are opened by the load of the inflow material so that the left and right opening and closing plates 16 are automatically closed by the load of the balance holding weights 22, Respectively. Results As is composed of left and right left and right shielding plate 26 that covered the spaced space portion 27 between the inner peripheral surface of the opening and closing left and right plate 16 and an upper base plate (3).

1 to 4 and 6 to 9, the base body portion 2 is mounted on the upper inlet portion of the manhole 11 so that the malodor shielding apparatus 1 is hooked to the inside of the manhole 11 And a base plate 3 that is seated on the upper inlet portion of the manhole 11 by horizontally positioned squirrel-shaped plates and is provided with a support plate 4 vertically downward on both front and rear sides of the inner circumferential surface of the base plate 3 And a central supporting bolt 5 is installed to protrude inward in a middle portion of the lower part of the front and rear supporting plate 4. The base plate 3 is made of a rectangular flat plate made of a metal such as stainless steel having a certain thickness The left and right side portions of the base plate 3 are cut off and the front and rear portions of the base plate 3 are bent and bent downwardly so that the inner side of the base plate 3, Front and rear And the support plates 4 are formed integrally in a simple and quick manner.

The front and rear support plates 4 are vertically erected with inverted triangular plates and hinge holes 6 are formed at both left and right ends of the upper and lower hinge shafts 17 so that the hinge shafts 17 protruding from both ends of the upper and lower ends of the left and right opening / The center support bolt 5 is inserted into the center of the lower portion of the front and rear support plate 4 so as to be rotatable about the hinge shaft 17 while being inserted into the hinge hole 6 As shown in FIGS. 3 and 8, in the process of closing the left and right open / close boards 16 hinged to the left and right sides between the front and rear support plates 4, any one of the open / close boards 16 The lower end portions of the left and right opening and closing plates 16 are caught by the center support bolt 5 so that they are not rotated further upward but are supported so as not to be offset from each other, By keeping the closed state to the open bottom of the base plate 3 it is adapted to block a reverse flow of odor and the like.

As shown in FIGS. 1 and 2, the front and rear support plates 4 are respectively formed with left and right side covers (left and right sides) to be assembled to both right and left sides of the inner frame portion of the base plate 3 The left and right sandwiching pieces 7 are more firmly supported by the left and right sandwiching plates 26 while the sandwiching pieces 7 are inserted into the fitting grooves 30 formed on the front and rear sides of the plate 26 so that the front and rear support plates 4 are prevented from being bent or deformed back and forth so that the left and right opening and closing plates 16 hinged therebetween are smoothly opened and closed.

As shown in FIG. 7, the front and rear support plates 4 are each provided with a bending prevention plate 8 on the outer side thereof. The bending prevention plate 8 is an inverted triangular plate, The support plate 9 is integrally bent so that the upper support plate 9 abuts against the front and rear lower portions of the base plate 3 and the bending prevention plate 8 abuts against the outer surfaces of the front and rear support plates 4, The front and rear support plates 4 are prevented from being bent or deformed back and forth while being integrally pierced through the nail 29 and the left and right opening and closing plates 16 hinged therebetween are smoothly opened and closed.

6, the base plate 3 is fixedly attached to the outer periphery of the lower portion of the base plate 3 with a synthetic rubber or a natural rubber rubber adhesive pad 10 so that the inner periphery of the upper inlet portion of the manhole 11 The sticking end 12 and the base plate 3 are brought into close contact with each other by the adherence pad 10 when they are placed on the holding end 12 formed on the surface of the base plate 3 so that the worms,

4, 8, and 9, the grill 13 is mounted on the upper surface of the base plate 3 in a state where the base plate 3 is seated on the upper inlet portion of the manhole 11, Through the plurality of drain holes 14 formed in the base plate 3 through the openings formed in the center portion of the base plate 3 and flow inward.

1 to 9, the malodor blocking unit 15 collects influent such as rain water or sewage introduced into the inside of the manhole 11 to enter the manhole 11, The front and rear support plates 4 are provided on both left and right sides of the left and right opening and closing plates 16 that are sloped downward in the inner diagonal direction and open and close, respectively, to block reverse flow of odor and the like from the inside of the manhole 11 while discharging the inside of the manhole 11 The left and right opening and closing plates 16 are hinged to the left and right ends of the front and rear support plates 4 by hinge shafts 17 protruding from both the front and rear sides of the upper end, And an outer curved plate 18 is bent at an upper end of the left and right openable and closable plates 16 so as to be inclined downward from an outer diagonal line. One or a plurality of reinforcing plates 19 are stacked on the outer curved plate 18, Return to state A plurality of balance retaining weights 22 are detachably fastened to the respective fastening bolts 20 by means of several fastening bolts 20 and nuts 21 so that the left and right opening and closing plates 22, (16) is automatically closed by the load of the balance holding weight (22).

The left and right opening and closing plates 16 are made of a metal such as stainless steel and have a rectangular plate shape having a width corresponding to the space between the front and rear support plates 4 and are inclined downward from the inner diagonal line of the base plate 3, The hinge shaft 17 is hinged to be rotatable about the hinge shaft 17 while being inserted into the hinge holes 6 formed at both left and right ends of the front and rear support plates 4 in a manner corresponding to the hinge holes 6.

As shown in FIG. 5, the outer curved plate 18 is formed with a long horizontal cut-out portion 23 in the left and right horizontal direction at an upper end portion thereof, and a downward cut-away portion 23 communicating with the horizontal cut- When the hinge shaft 17 of the left and right openable and closable plates 16 is inserted into the hinge holes 6 of the front and rear support plates 4 and the front and rear sides of the left and right openable and closable plates 16, The hinge shaft 17 is easily inserted into and passed through the hinge hole 6 while being freely bent upward and downward at a predetermined angle by the lateral cutout portion 23 and the longitudinal cutout portion 24 of the left and right openable and closable plates 18, A rectangular reinforcing plate having a size similar to that of the outer curved plate 18 is provided on the upper face portion or the lower face portion of the outer curved plate 18 in a state in which the hinge shaft 17 of the outer curved plate 16 passes through the hinge hole 6. [ 19 are stacked one on top of the other, and a plurality of fastening bolts 20 and a nut 21 are integrally formed with the outer edge plate 18 and the reinforcing plate 19 As the information entered is not supported any more curved up or down by the reinforcing plate 19 of the left and right front and rear closing plates 16.

The fastening bolt 20 is protruded downward through the reinforcing plate 19 and the outer curved plate 18 so that the fastening bolt 20 has a ring shape having a predetermined load on the protruding portion of the fastening bolt 20 One or a plurality of locking bolts 20 are attached to the fastening bolts 20 in accordance with the size or thickness of the left and right opening and closing plates 16 mounted on the manhole 11 by being assembled by the nuts 21 while one or a plurality of balance- The weight balance and weight balance can be easily adjusted when the left and right opening / closing plates 16 are opened / closed by rotating the balance holding weight 22.

9, when the inflow water such as waste water or rain water flows inward through the opening of the base plate 3, the left and right opening and closing plates 16 are moved around the hinge shaft 17 by the load of the inflow The lower portion of the left and right opening / closing plate 16 is moved inwardly by the load of the balancing weight 22 as shown in FIG. 8 when the inflow is released to the inside of the manhole 11, The lower end portion is caught by the central support bolt 5 of the front and rear support plates 4 and is not rotated further upward and the lower end portions are kept in contact with each other without misalignment, And the like.

6, 8, and 9, the outer curved plate 18 has a curved guide member 22 for guiding one or more balance maintaining weights 22, The plate 25 is assembled and fastened by the nut 21 in a state where the plate 25 passes through the end portion of the fastening bolt 20 and the balance retaining weight 22 is rusted by the wastewater or sewage in the manhole 11 So that it is prevented from being contaminated with contaminants or the like.

1 to 4 and 6 to 9, the left and right shielding plates 26 are formed in such a manner that an inflow water flows in through the clearance between the base plate 3 and the left and right opening and closing plates 16, And the left and right side open / close plates 16 and the left and right inner circumferential surfaces of the base plate 3 are separated from each other by projecting inwardly to the left and right sides of the inside of the base plate 3, When the left and right opening / closing plates 16 are provided between the front and rear support plates 4 of the base plate 3, the outside space formed by the outer periphery of the left and right opening / The hinge holes 6 of the front and rear support plates 4 are formed in such a manner that the hinge holes 6 of the front and rear support plates 4 are engaged with the rotation radii of the outer curved plates 18 to prevent the front plate 18 from coming into contact with the inner bottom surface of the base plate 3 when the left and right opening / The base plate 3 and the inner peripheral surface of the base plate 3, A spacing portion 27 is formed between the upper portion of the left and right opening and closing plate 16 and the left and right inner circumferential surfaces of the base plate 3 so as to be spaced apart from the manhole 11 through the space portion 27. [ The left and right shielding plates 26 are assembled and installed in this portion in order to prevent the backflow of odor and the like.

The left and right shielding plates 26 are made of metal such as stainless steel and have a long rectangular plate shape. The slanting pieces 28 are protruded at one end of the base plate 3 A plurality of pieces of nails passing through the overlapped portions of the base plate 3 and the left and right shielding plates 26 in the state where the other outer portion of the left and right shielding plates 26 and the front and rear end portions thereof are vertically abutted on both sides of the inner surface, The left and right door panels 26 are assembled together by the right and left door panels 29 so that one side of the right and left side panels 26 are protruded to the inside of the opening of the base plate 3 by a predetermined length, As shown in Fig.

The left and right shielding plates 26 cover the spaced spaces 27 between the upper portions of the left and right opening and closing plates 16 and the left and right inner peripheral surfaces of the base plate 3, .

The left and right shielding plates 26 are formed with fitting grooves 30 at one side of the front and rear sides of the front and rear fitting grooves 30. The front and rear fitting grooves 30 are formed at both left and right ends of the front and rear support plates 4, The fitting pieces 7 of the front and rear support plates 4 are more firmly supported by the left and right cover plates 26 so that the left and right upper sides of the front and rear support plates 4 are bent or deformed back and forth So that the left and right opening / closing plates 16 provided between the front and rear support plates 4 can be smoothly opened and closed.

Hereinafter, the operation of the present invention will be described.

The automatic openable and closable type malodor shielding device 1 of the present invention is constructed such that a manhole 11 such as an excellent manhole or a drainage manhole buried in the roadside or a drainage hole for collecting storm water or sewage is discharged from the drainage pipe 31, When it is installed at the inlet to block backflow of various kinds of malodorous substances, and to block various insects, mice, mosquitoes, etc., first, as shown in FIG. 1, a metal such as stainless steel having a shape conforming to the inlet portion of the manhole 11 The middle part of the rectangular flat plate made of material is cut in the shape of "X", the left and right cut parts are cut and removed, and the front and back parts are bent and bent downward vertically. A support plate 4 having an inverted triangular shape vertically downwardly formed on the front and rear sides of the inner surface of the base plate 3 and the base plate 3 is formed integrally with the front and rear support plates 4, In each drilling a hinge hole (6) and is installed to protrude through the inside of the center support bolt (5) of any one of the lower portions of the front and rear support plates (4).

Next, as shown in Fig. 2, the other outer side portions of the left and right shielding plates 26 are vertically abutted on the lower left and right side portions of the inner frame portion of the base plate 3, The left and right cover plates 26 are fixedly installed on the right and left sides of the inner circumferential surface of the base plate 3 so as to protrude inwardly and protrude from both the front and rear ends of the upper ends of the left and right cover plates 16 The hinge shaft 17 is fitted into the hinge holes 6 of the front and rear support plates 4 and one or a plurality of reinforcing plates 19 are stacked on the outer periphery plate 18 of the left and right opening / One or a plurality of balancing weights 22 are inserted into the fastening bolts 20 protruding outwardly downwardly through the fastening bolts 20, The nut 21 is fixedly fastened to the nut The assembled malodor shielding device 1 is attached to the base plate 3 on the holding end 12 formed along the inner surface of the upper inlet portion of the manhole 11, And an ordinary grating 13 is placed on the upper portion of the base plate 3 to complete the installation.

When the inflow water such as rain water or sewage flows inward through the opening of the base plate 3 through the drain hole 14 of the grating 13, When the inflow water is discharged to the inside of the manhole 11 and the inflow water is discharged as shown in FIG. 8, the balance weight 22 The lower ends of the left and right openable and closable plates 16 are engaged with the center support bolts 5 of the front and rear support plates 4 and are not rotated further upward, The lower end portion is kept in contact with each other without misalignment to block the backflow of odor from the manhole 11 and the leakage of various insects, rats, flies, mosquitoes and the like.

The left and right shielding plates 26 shield the space 27 between the upper portions of the left and right opening and closing plates 16 and the left and right inner peripheral surfaces of the base plate 3, .

1. Odor block device 2. Base body part
3. Base plate 4. Support plate
5. Center support bolt 6. Hinge hole
7. Fittings 8. Fretboard
9. Upper support plate 10. Clamping pad
11. Manhole
13. Grating 14. Drainage
15. Odor block 16. Opening and closing plate
17. Hinge shafts 18. Outer flap plates
19. Stiffening plate 20. Tightening bolt
21. Nuts 22. Balance Chu
23. Lateral cut section 24. Vertical cut section
25. Guide plate 26. Cover plate
27. Space portion 28. Inclined portion
29. Peg nail 30. Fitting groove
31. Water pipe

Claims (6)

The support plate 4 is bent vertically downward and on both sides of the inner circumferential surface of the base plate 3 which is seated on the upper entrance of the manhole 11 by horizontally positioned rectangular plate, A left and right opening and closing plate 16 which is opened and closed while being inclined downward in the inner diagonal direction is provided on both left and right sides between the front and rear support plates 4 and a base body portion 2 in which a center support bolt 5 is projected inward, The left and right opening and closing plates 16 are respectively provided at the front and rear sides of the upper end portion with the hinge shafts 17 protruding from the upper and lower sides of the upper and lower support plates 4 and hinge to the left and right ends of the front and rear support plates 4, And the outer edge plate 18 is bent at an upper end portion of the left and right side opening and closing plate 16 so as to be inclined downward from the outer diagonal line and the upper and lower portions of the outer edge plate 18 are provided with a rectangular reinforcing plate 19 are stacked one upon the other and are assembled by a plurality of fastening bolts 20 and a nut 21 and one or a plurality of balance holding weights 22 are detachably fastened to the fastening bolts 20, A malodor shielding portion 15 which is opened automatically by a load of the balance holding spindle 22 to open and close the left and right opening and closing plates 16 opened by a load, Left and right side shielding plates 26 for covering spaced apart spaces 27 between the upper portions of the left and right opening and closing plates 16 and the left and right inner circumferential surfaces of the base plate 3 while assembled, A horizontal cut portion 23 is formed horizontally in the upper end portion and a vertical cut portion 24 is formed in the middle portion so as to communicate with the lateral cut portion 23 so that the front and rear sides of the left and right open / (23) and the vertical cut-out portion (24), the hinge shaft 17) is inserted through the hinge hole (6).
[2] The apparatus of claim 1, wherein the base plate (3) is formed by cutting a center portion of a rectangular flat plate made of a metal material into an "X " shape, cutting the left and right portions, The front and rear support plates 4 are respectively formed at the left and right ends of the hinge holes 6 at the upper and left ends of the base plate 3, Wherein the hinge shaft (17) of the left and right opening / closing plate (16) is inserted through the hinge hole (6) and hinged to be rotated around the hinge shaft (17).
The slide fastener according to claim 1 or 2, wherein the front and rear support plates (4) each have a fitting piece (7) extending from both left and right ends thereof, And the left and right catches (7) are supported by the left and right cover plates (26) while inserting the catches (7) inside.
The apparatus according to claim 1 or 2, wherein each of the front and rear support plates (4) is assembled with a bending prevention plate (8) on the outer side thereof, the bending prevention plate (8) The upper support plate 9 is brought into contact with the front and rear lower face portions of the base plate 3 and the bending prevention plate 8 is in contact with the outer surfaces of the front and rear support plates 4, 29), and the base plate (3) is fixed to the outer periphery of the lower surface of the base plate (3) with a bonding pad (10) made of synthetic rubber or natural rubber.
delete 2. The apparatus according to claim 1, wherein the left and right cover plates (26) are formed in a shape of a long rectangular plate having a front and a rear long side and a slanting piece (28) And the other end of the left and right shielding plates 26 and the front and rear portions of the left and right shielding plates 26 are assembled together by a plurality of nails 29 passing through the overlapped portion in the state of being vertically abutted, Closing plate (16). The automatic opening and shutting type smell-blocking device according to claim 1, wherein the opening / closing plate (16)

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