Filtering device for municipal water supply and drainage

Abstract

The filtering device comprises a rain grate base installed at a drainage channel opening and a rain grate plate hinged to the rain grate base, the rain grate plate is provided with a water leakage area, and a drainage through hole penetrating through the upper surface and the lower surface is formed in the water leakage area; the filtering bracket is mounted at the bottom of the drainage channel; the filtering basket is mounted at the top of the filtering bracket; the elastic component is mounted at the top of the filtering bracket and drives the filtering basket to be always propped against the bottom surface of the rain grate plate; the filter basket is provided with an arrangement groove for the elastic assembly to abut against; the elastic assembly comprises a first supporting base installed on the top of the filtering support, a second supporting base arranged in the arrangement groove, and a supporting spring connected with the first supporting base and the second supporting base, wherein the top of the second supporting base abuts against the top face of the arrangement groove. The device has the effect that impurities on the filter screen can be cleaned easily and conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal water supply and drainage, and particularly relates to a filtering device for municipal water supply and drainage. BACKGROUND

[0002] At present, in the municipal water supply and drainage system, rainwater flows into the urban water supply pipe network after being treated, so that the impurities in the rainwater need to be filtered before the rainwater flows into the drainage pipeline, so that the cleanliness of the rainwater flowing into the drainage pipeline is better. The existing filtering device for municipal water supply and drainage usually excavates a drainage ditch on the side of the road and installs a rain grate at the opening of the drainage ditch to preliminarily filter the rainwater, then opens a placing groove in the drainage ditch and installs a filter screen on the placing groove, so that the rainwater can be filtered twice. When a large amount of impurities accumulates on the filter screen, manual cleaning of the impurities is required.

[0003] According to the related technology in the above, the inventor believes that it is necessary to manually bend down to lift the filter screen from the drainage ditch, and then clean the impurities on the filter screen, so that the cleaning of the impurities on the filter screen is more cumbersome. CONTENT OF THE UTILITY MODEL

[0004] In order to make the cleaning of the impurities on the filter screen more convenient, the present application provides a filtering device for municipal water supply and drainage.

[0005] The filtering device for municipal water supply and drainage provided by the present application adopts the following technical scheme:

[0006] A filtering device for municipal water supply and drainage, comprising a rain grate seat installed at the opening of a drainage ditch and a rain grate plate hingedly connected to the rain grate seat, the rain grate plate having a water leakage area and a water drainage through hole penetrating the upper and lower surfaces being opened in the water leakage area; further comprising a filter support installed at the bottom of the drainage ditch, a filter basket installed at the top of the filter support, and an elastic assembly installed at the top of the filter support and driving the filter basket to always abut against the bottom surface of the rain grate plate; the filter basket has a arrangement groove for the elastic assembly to abut against; the elastic assembly comprises a first support seat installed at the top of the filter support, a second support seat arranged in the arrangement groove and abutting against the top surface of the arrangement groove at the top, and a support spring connecting the first support seat and the second support seat.

[0007] By adopting the above technical scheme, when the rainwater passes through the water drainage through hole of the rain grate plate, the impurities in the rainwater can be preliminarily filtered, and when the rainwater flows into the filter basket, the impurities in the rainwater can be filtered twice. When there are a large amount of impurities in the filter basket, the rain grate plate is opened by the worker, and the elastic assembly pops out the filter basket to the opening of the drainage ditch, so that the worker does not need to bend down to lift the filter screen from the drainage ditch, thereby making the cleaning of the impurities on the filter screen more convenient.

[0008] Optionally, the top of the filter basket is provided with a lifting mechanism; the lifting mechanism comprises a sliding frame installed on the top of the filter basket, a first rack slidingly installed on one side of the sliding frame, a second rack slidingly installed on the other side of the sliding frame, and a driving gear rotatably installed on the sliding frame and used to drive the first rack and the second rack to move away from or close to each other; the top of the driving gear is provided with a driving groove.

[0009] By adopting the above technical scheme, when the filter basket needs to be taken out of the drainage channel, the first rack and the second rack are driven to move close to each other by rotating the driving gear, and then the elastic assembly lifts the filter basket upward, so that the worker can lift the filter basket by the sliding frame. When the filter basket needs to be fixed in the drainage channel, the first rack and the second rack are driven to move away from each other by rotating the driving gear, so as to abut against the rain grate seat, thereby achieving the fixation of the filter basket in the drainage channel.

[0010] Optionally, it further comprises a driving rod used to drive the rotation of the driving gear; the bottom of the driving rod is provided with a driving block used to be engaged with the driving groove, and the top of the driving rod is provided with a driving handle.

[0011] By adopting the above technical scheme, the driving rod is provided to enable the worker to rotate the driving gear by the driving rod, and the driving handle is provided to make it easier for the worker to rotate the driving rod.

[0012] Optionally, the top of the sliding frame is provided with a treading portion, and the top of the treading portion is provided with a treading protrusion.

[0013] By adopting the above technical scheme, the treading portion and the treading protrusion are provided to enable the worker to tread the filter basket downward by the foot while rotating the driving gear by the driving rod when the filter basket is put into the drainage channel, thereby enabling the filter basket to be fixed in the drainage channel.

[0014] Optionally, the rain grate seat is provided at both ends with a first insertion groove used to insert the end of the first rack and a second insertion groove used to insert the end of the second rack.

[0015] By adopting the above technical scheme, the cooperation of the first rack and the first insertion groove and the cooperation of the second rack and the second insertion groove enable the filter basket to be locked at the rain grate seat.

[0016] Optionally, the width of the water leakage area of the rain grate plate is smaller than the width of the opening of the filter basket.

[0017] By adopting the technical scheme, the width of the water leakage area and the opening of the filter basket can reduce the probability of rainwater flowing into the outside of the filter basket from the drainage through hole, thereby helping to improve the effect of the filter basket on filtering impurities in the rainwater.

[0018] Optionally, the top of the filter support has two support rods intersecting with each other and used for supporting the elastic assembly, and the filter basket has a clearance slot for arranging the two support rods.

[0019] By adopting the technical scheme, the clearance slot and the support rod can increase the depth of the filter basket and reduce the probability of interference with the filter support when moving up and down, thereby helping to improve the amount of impurities filtered by the filter basket.

[0020] Optionally, the filter basket is attached with a waterproof layer on the inner side wall of the arrangement slot.

[0021] By adopting the technical scheme, the waterproof layer helps to reduce the probability of rainwater flowing into the elastic assembly, thereby helping to reduce the probability of impurities in the rainwater damaging the elastic assembly.

[0022] Optionally, the first support seat is provided with a first plug-in rod extending upward along the axis direction, and the second support seat is provided with a second plug-in rod extending downward along the axis direction; the second plug-in rod is provided with a second plug-in hole along the axis direction for arranging the first plug-in rod.

[0023] By adopting the technical scheme, when the filter basket is fixed in the drainage channel, i.e., the support spring is in a compressed state, the cooperation of the first plug-in slot and the first plug-in rod makes the support spring stable and ideal when in the compressed state.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. A municipal water supply and drainage filtering device, which is installed in a drainage channel by installing a filter support and an elastic assembly on the filter support. When it is necessary to clean impurities in the filter basket, the elastic assembly can pop the filter basket out to the drainage channel opening by opening the rain grate, so that the worker does not need to bend over to lift the filter screen from the drainage channel, thereby making it easier to clean the impurities on the filter screen.

[0026] 2. By providing a lifting mechanism on the top of the filter basket, the first rack and the second rack can be abutted at the rain grate by rotating the drive gear, so that the filter basket is fixed in the drainage channel.

[0027] 3. By inserting the driving block of the driving rod into the driving slot to rotate the drive gear, it is easier for the worker to rotate the drive gear. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 is a schematic diagram of the structure of the cooperation between the driving rod and the lifting mechanism in an embodiment of the present application.

[0030] Figure 3 is a schematic diagram of the structure of the rain screen base and the rain screen plate in an embodiment of the present application.

[0031] Figure 4 is a bottom view of the filter basket in an embodiment of the present application.

[0032] Figure 5 is a cross-sectional schematic diagram of the elastic assembly in an embodiment of the present application.

[0033] Figure 6 is a cross-sectional schematic diagram of the lifting mechanism in an embodiment of the present application.

[0034] Figure 7 is a cross-sectional schematic diagram of the driving gear in an embodiment of the present application.

[0035] Figure 8 is a schematic diagram of the structure of the driving block and the driving slot in an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF THE DRAWINGS: 1, rain screen base; 11, placement slot; 12, plug-in slot; 2, rain screen plate; 21, drainage through hole; 3, filter support; 31, support upright column; 32, support rod; 33, support platform; 4, filter basket; 41, filter sub-basket; 411, filter through hole; 42, accommodation slot; 43, arrangement slot; 44, waterproof layer; 5, elastic assembly; 51, first support base; 511, first support disc; 512, first clamping column; 513, first plug-in rod; 52, second support base; 521, second support disc; 522, second clamping column; 523, second plug-in rod; 5231, second plug-in hole; 53, support spring; 6, lifting mechanism; 61, sliding frame; 611, first side plate; 6111, first sliding groove; 612, second side plate; 6121, second sliding groove; 62, first rack; 621, first sliding part; 622, first tooth part; 63, second rack; 631, second sliding part; 632, second tooth part; 64, driving gear; 641, first gear; 6411, first key groove; 642, first rotating shaft; 6421, second key groove; 6422, driving slot; 643, fixed key; 65, treading part; 651, treading protrusion; 7, driving rod; 71, driving block; 72, driving handle. DETAILED DESCRIPTION

[0037] The following will be described in detail below with reference to the accompanying drawings. Figures 1-8 The present application will be described in further detail.

[0038] The embodiment of the present application discloses a filtering device for municipal water supply and drainage.

[0039] Referring to Figure 1 and Figure 2 , the filtering device for municipal water supply and drainage comprises a rain grate base 1, a rain grate plate 2 hinged to the rain grate base 1, a filtering support 3 installed at the bottom of a drainage ditch, a filtering basket 4 installed at the top of the filtering support 3, an elastic assembly 5 installed at the top of the filtering support, a lifting mechanism 6 installed at the top of the filtering basket 4 and a driving rod 7.

[0040] Referring to Figure 1 and Figure 3 , the rain grate base 1 is a square frame metal base used for being installed at the upper end of a drainage ditch of a municipal drainage system. The rain grate base 1 is provided with a placing groove 11 at the top thereof for placing the rain grate plate 2. The placing groove 11 is in the shape of an inverted truncated cone, and the rain grate base 1 is a square frame metal base, so the placing groove 11 is in the shape of an inverted quadrangular truncated cone.

[0041] Referring to Figure 3 , the rain grate plate 2 is a square metal plate structure, and the shape of the rain grate plate 2 is matched with the shape of the placing groove 11, that is, in the shape of an inverted quadrangular truncated cone. The rain grate plate 2 has a water leakage area and is provided with a water drainage through hole 21 for water flow in the water leakage area. In the embodiment, the width of the water leakage area is smaller than the width of the opening at the upper end of the filtering basket 4, and the water drainage through hole 21 in the rain grate plate 2 is a strip-shaped through hole.

[0042] Referring to Figure 1 and Figure 2 , the filtering support 3 comprises four support columns 31 vertically arranged at four corners of the bottom of the drainage ditch, two support rods 32 connected with the four support columns and cross-welded with each other and a support platform 33 welded at the top of the connection position of the two support rods 32. The support platform 33 is a circular metal plate structure.

[0043] Referring to Figure 2 and Figure 4 , the filtering basket 4 comprises four filtering sub-baskets 41, and a gap slot 42 for arranging the support rod 32 is formed between two adjacent filtering sub-baskets 41. The filtering basket 4 is formed with an arrangement slot 43 for arranging the elastic assembly 5 at the middle of the four filtering sub-baskets 41. A waterproof layer 44 is attached to the inner side wall of the arrangement slot 43. A plurality of filtering through holes 411 are formed in the side wall of the filtering sub-basket 41.

[0044] Referring to Figure 2 and Figure 5The elastic assembly 5 comprises a first supporting base 51, a second supporting base 52 and a supporting spring 53 connecting the first supporting base 51 and the second supporting base 52, which are installed on the supporting platform 33. The first supporting base 51 comprises a first supporting disc 511 and a first clamping column 512 connected to the top of the first supporting disc 511, which are integrally arranged. The first clamping column 512 is clamped to the inner side of the bottom of the supporting spring 53. The second supporting base 52 comprises a second supporting disc 521 and a second clamping column 522 connected to the top of the second supporting disc 521, which are integrally arranged. The second clamping column 522 is clamped to the inner side of the bottom of the supporting spring 53.

[0045] With reference to Figure 5 The top of the first clamping column 512 is provided with a first plug-in rod 513 extending upward along the axial direction, which is a cylindrical structure and is integrally arranged with the first clamping column 512. The bottom of the second clamping column 522 is provided with a second plug-in rod 523 extending downward along the axial direction, which is a cylindrical structure and is integrally arranged with the second clamping column 522. The bottom surface of the second plug-in rod 523 is provided with a second plug-in hole 5231 along the axial direction, and the inner diameter of the second plug-in hole 5231 is greater than the outer diameter of the first plug-in rod 513. When the second supporting base 52 moves downward, the first plug-in rod 513 is inserted into the second plug-in hole 5231.

[0046] With reference to Figure 2 and Figure 6 The pulling mechanism 6 comprises a sliding frame 61 installed on the top of the filter basket 4, a first rack 62 slidingly installed on one side of the sliding frame 61, a second rack 63 slidingly installed on the other side of the sliding frame 61, and a driving gear 64 rotatingly installed in the middle of the sliding frame 61. The sliding frame 61 is a square frame structure, and the two ends of the sliding frame 61 are fixed by welding on the two sides of the opening at the upper end of the filter basket 4.

[0047] With reference to Figure 2 and Figure 6 The sliding frame 61 has a first side plate 611 and a second side plate 612, and a first sliding groove 6111 for slidingly arranging the first rack 62 is opened on the inner side wall of the first side plate 611 along the length direction, and a second sliding groove 6121 for slidingly arranging the second rack 63 is opened on the inner side wall of the second side plate 612 along the length direction. The first sliding groove 6111 and the second sliding groove 6121 are both through groove structures with a tapered cross section. The top of the sliding frame 61 is further provided with a treading part 65, and the top of the treading part 65 is provided with a treading protruding rib 651.

[0048] With reference to Figure 3 and Figure 6, the first rack 62 comprises a first sliding part 621 slidingly arranged in a first sliding groove 6111 and a first tooth part 622 connected to the first sliding part 621 and located outside the first sliding groove 6111, and the first sliding part 621 and the first tooth part 622 are integrally arranged. The second rack 63 comprises a second sliding part 631 slidingly arranged in a second sliding groove 6121 and a second tooth part 632 connected to the second sliding part 631, and the second sliding part 631 and the second tooth part 632 are integrally arranged. The two sides of the inner side wall of the rain screen base 1 are provided with insertion grooves 12 for inserting the end of the first sliding part 621 / the end of the second sliding part 631.

[0049] With reference to Figure 6 and Figure 7 , the drive gear member 64 comprises a first gear 641 and a first rotating shaft 642 connected to the central through hole of the first gear 641. The upper and lower sides of the sliding frame 61 are provided with rotating through holes for the first rotating shaft 642. The first gear 641 has a first key groove 6411 at the central through hole, and the first rotating shaft 642 has a second key groove 6421. The first key groove 6411 and the second key groove 6421 are opposite to each other, and a fixing key 643 is arranged between the first key groove 6411 and the second key groove 6421. The top surface of the first rotating shaft 642 is provided with a drive groove 6422, which is a hexagonal groove.

[0050] With reference to Figure 2 and Figure 8 , the drive rod 7 is a cylindrical rod, and the bottom of the drive rod 7 is provided with a drive block 71 adapted to the drive groove 6422, and the drive block 71 is a hexagonal structure. The top of the drive rod 7 is provided with a drive handle 72.

[0051] In combination Figures 1 to 8 , the implementation principle of the filtering device for municipal water supply and drainage according to the embodiment of the application is as follows: when the filtering basket 4 is placed in the drainage ditch, the drive block 71 of the drive rod 7 is inserted into the drive groove 6422, and then the drive rod 7 is rotated, so that the end of the first rack 62 and the end of the second rack 63 are inserted into the insertion grooves 12, thereby fixing the filtering basket 4 at the rain screen base 1; when it is necessary to clean the impurities in the filtering basket 4, the rain screen plate 2 is opened, the drive gear member 64 is rotated by the drive rod 7, so that the end of the first rack 62 and the end of the second rack 63 are separated from the insertion grooves 12, and then the supporting spring 53 pops up the filtering basket 4 upward to the opening of the drainage ditch, so as to facilitate the worker to lift up the filtering basket 4.

[0052] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A filtering device for municipal water supply and drainage, comprising a grate seat (1) installed at the mouth of a drainage channel and a grate plate (2) hinged to the grate seat (1), the grate plate (2) having a water leakage area and a water drainage through-hole (21) passing through the upper and lower surfaces being formed in the water leakage area; characterized in that, It also comprises a filter support (3) installed at the bottom of the drainage ditch, a filter basket (4) installed at the top of the filter support (3), and an elastic assembly (5) installed at the top of the filter support (3) and driving the filter basket (4) to always abut against the trend of the bottom surface of the rain grate plate (2); the filter basket (4) has an arrangement groove (43) for the elastic assembly (5) to abut against; the elastic assembly (5) comprises a first support seat (51) installed at the top of the filter support (3), a second support seat (52) arranged in the arrangement groove (43) and abutting against the top surface of the arrangement groove (43), and a support spring (53) connecting the first support seat (51) and the second support seat (52).

2. The filtering device for municipal water supply and drainage according to claim 1, characterized in that, The top of the filter basket (4) is provided with a lifting mechanism (6); the lifting mechanism (6) comprises a sliding frame (61) installed at the top of the filter basket (4), a first rack (62) slidingly installed on one side of the sliding frame (61), a second rack (63) slidingly installed on the other side of the sliding frame (61), and a drive gear piece (64) rotatingly installed on the sliding frame (61) and used for driving the first rack (62) and the second rack (63) to move away from / abut against each other; the top of the drive gear piece (64) is provided with a drive groove (6422).

3. The filtering device for municipal water supply and drainage according to claim 2, characterized in that, It also comprises a drive rod (7) for driving the drive gear piece (64) to rotate; the bottom of the drive rod (7) is provided with a drive block (71) for clamping cooperation with the drive groove (6422), and the top of the drive rod (7) is provided with a drive handle (72).

4. The filtering device for municipal water supply and drainage according to claim 2, characterized in that, The top of the sliding frame (61) is provided with a treading portion (65), and the top of the treading portion (65) is provided with a treading protruding rib (651).

5. The filtering device for municipal water supply and drainage according to claim 2, characterized in that, Both ends of the rain grate base (1) are provided with a plug-in groove (12) for plugging in the end of the first rack (62) / the end of the second rack (63).

6. The filtering device for municipal water supply and drainage according to claim 1, characterized in that, The width of the water leakage area of the rain grate plate (2) is less than the width of the opening of the filter basket (4).

7. The filtering device for municipal water supply and drainage according to claim 1, characterized in that, The top of the filter support (3) has two support rods (32) intersecting with each other and used for supporting the elastic assembly (5), and the filter basket (4) has a gap groove (42) for arranging the two support rods (32).

8. The filtering device for municipal water supply and drainage according to claim 1, characterized in that, The inner side wall of the arrangement groove (43) of the filter basket (4) is attached with a waterproof layer (44).

9. The filtering device for municipal water supply and drainage according to claim 1, characterized in that, The first support seat (51) is provided with a first plug-in rod (513) extending upward in the axial direction, and the second support seat (52) is provided with a second plug-in rod (523) extending downward in the axial direction; the second plug-in rod (523) is provided with a second plug-in hole (5231) in the axial direction for arranging the first plug-in rod (513).

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