Rainwater drainage device
Technical Field
The utility model relates to the technical field of water supply and drainage rainwater collection and drainage, in particular to a water supply and drainage rainwater drainage device.
Background
The rainwater discarding device is mainly used for collecting and recycling the field rainwater, and the rainwater is collected, treated and recycled through a specific device and a system. The existing rainwater drainage device is internally provided with a floating body, and the drainage port is blocked or opened by utilizing the up-and-down floating of the floating body so as to realize the switching of the filtering work and the drainage work of rainwater.
In practical application, certain dirt still exists in water flow entering the rainwater drainage device, and because the drainage opening is small in size, dirt carried by the water flow when passing through the drainage opening can block the drainage opening, and part of dirt flowing down by the drainage opening can be accumulated at the bottom of the rainwater drainage device and is not easy to drain, so that the normal work of the rainwater drainage device is influenced for a long time, and therefore, a water supply and drainage rainwater drainage device capable of filtering the rainwater before the rainwater enters the drainage opening is needed.
Disclosure of utility model
The utility model aims to provide a rainwater drainage device which can filter rainwater before the rainwater flows through a drainage port, so that the situation that the drainage port is blocked by dirt and the dirt is accumulated at the bottom of the drainage device is avoided, and the normal use of the device is ensured.
The utility model adopts the following technical scheme:
The rainwater drainage and drainage device comprises a barrel body, wherein the interior of the barrel body is divided into a filter cavity at the upper part and a sewage drainage cavity at the lower part through a partition board, drainage ports are arranged on the partition board in a penetrating mode, floating bodies are arranged in the sewage drainage cavity and the filter cavity through connecting shafts, the connecting shafts are movably arranged on supporting rods in the barrel body, a net cover is arranged on the partition board outside the drainage ports, the net cover and the connecting shafts are coaxially arranged, through holes for the connecting shafts to movably penetrate through are formed in the top end of the net cover, and the floating bodies in the filter cavities are located above the net cover.
Preferably, the mesh enclosure is a mesh structure with an open bottom end and a hollow inside.
Preferably, the mesh enclosure is of a cylindrical structure.
Preferably, a diversion table is arranged at the top end of the net cover.
Preferably, the diversion bench is in a conical structure.
Preferably, the surface of the diversion bench is smooth.
Preferably, a cleaning ring is coaxially arranged outside the mesh enclosure, and bristles in contact with the mesh enclosure are arranged on the inner side of the cleaning ring; the cleaning ring is provided with a connecting rod, and the connecting rod is connected with the floating body in the filter cavity.
Preferably, a water inlet and a water outlet are arranged on the cylinder body corresponding to the filter cavity, a filter screen is arranged on one side, close to the water outlet, of the cylinder body, and a sewage outlet is arranged on the cylinder body corresponding to the sewage cavity.
Preferably, the filter screen is circularly arranged along the radial bending of the cylinder.
Preferably, the floating body is a floating ball with a smooth surface, and the diameter of the floating body in the filter cavity is larger than that of the drainage port.
Compared with the prior art, the utility model has the beneficial effects that the net cover is arranged on the waste water outlet, so that dirt can be intercepted and filtered by utilizing the net cover on the premise of not influencing the floating body to block the waste water outlet, the situation that the waste water outlet is blocked by the dirt or the dirt is accumulated in the sewage discharging cavity is avoided, the normal work of the device is ensured, the convenience of cleaning the dirt is improved, the structure is simple, the use is convenient, and the practicability is strong.
Drawings
FIG. 1 is a top view of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
FIG. 3 is a schematic view of a mesh enclosure according to an embodiment of the present application;
Fig. 4 is a top view of a filter screen according to an embodiment of the application.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings and examples in which:
As shown in figures 1 to 4, the rainwater drainage device comprises a barrel 1, wherein the interior of the barrel 1 is divided into a filtering cavity 3 at the upper part and a drainage cavity 4 at the lower part through a baffle plate 2, a water inlet 5 and a water outlet 6 are arranged on the barrel 1 corresponding to the filtering cavity 3, a drainage outlet 7 is arranged on the barrel 1 corresponding to the filtering cavity 3, a filter screen 8 is arranged at one end, close to the water outlet 6, of the filtering cavity 3 to further filter the drained rainwater, a drainage port 9 is penetrated through the baffle plate 2, the drainage cavity 4 and the filtering cavity 3 are communicated through the drainage port 9, floating bodies 10 are respectively arranged in the drainage cavity 4 and the filtering cavity 3 through a connecting shaft 14, the connecting shafts 14 are movably arranged on a supporting rod 11 in the barrel 1, a net cover 13 is arranged on the baffle plate 2 at the outer part of the drainage port coaxially with the connecting shafts 14, through holes through which the connecting shafts 14 movably penetrate are arranged at the top ends of the net cover 13, the floating bodies 10 positioned in the filtering cavity 3 are positioned above the net cover 13 to ensure that the floating bodies 10 are not influenced when the water flow is larger, and the drainage port 9 can be normally closed. According to the utility model, through the arrangement of the mesh enclosure 13, dirt carried in rainwater can be intercepted and filtered while the rainwater passes through the drainage opening 9, so that the situation that the drainage opening 9 is blocked and dirt in the sewage draining cavity 4 is accumulated is avoided, the normal operation of the device is ensured, and the difficulty of cleaning the dirt is reduced.
Further, the mesh enclosure 13 is a mesh structure with an open bottom end in the hollow interior, so that rainwater can smoothly pass through, dirt is trapped in the filter cavity 3, and the filter cavity 3 is cleaned regularly. The mesh enclosure 13 is preferably provided in a cylindrical structure, so as to ensure a filtering area. In addition, the top end of the net cover 13 is also provided with a guide table 15, the guide table 15 is of a conical structure, the bottom end of the guide table 15 and the top end of the net cover 13 are preferably the same in size, and the conical guide table 15 can prevent dirt from accumulating at the bottom of the net cover 13. The surface of the diversion bench 15 is preferably smooth so that dirt slides down the smooth slope of the diversion bench 15.
Further, a cleaning ring 16 is coaxially arranged outside the net cover 13, bristles in contact with the net cover 13 are arranged on the inner side of the cleaning ring 16, a connecting rod 12 is arranged on the cleaning ring 16, and the connecting rod 12 is connected with the floating body 10 in the filter cavity 3. The floating body 10 can rise along with the increase of water flow and synchronously drives the cleaning ring 16 to rise, so that the purpose of cleaning the outside of the net cover 13 is realized, dirt adhered to the outside of the net cover 13 is cleaned in time, the influence of blocking meshes on the filtering efficiency is avoided, meanwhile, dirt which is difficult to remove can be pulled up and down to drive the cleaning ring 16 to move up and down when the dirt is cleaned manually and regularly, the net cover 13 is cleaned, and the convenience of cleaning the net cover 13 is improved. The height of the net cover 13 is not larger than the distance from the floating body 10 in the sewage cavity 4 to the drainage port 9, so that the cleaning ring 16 can clean the net cover 13 when the floating body 10 moves upwards to block the drainage port 9.
Further, the filter screen 8 in this embodiment is arranged along the radial bending circulation of the cylinder 1, so that the filtering area of the filter screen 8 can be increased, and the filtering efficiency is ensured. In addition, the floating body 10 in the embodiment is a floating ball with a smooth surface, wherein the diameter of the floating body 10 in the filter cavity 3 is larger than that of the drainage port, so that the floating ball moves upwards to seal the drainage port 9 when the water flow is large, and the water flow is filtered by the filter screen 8 and discharged from the water outlet 6.
When the device works, water flows into the cylinder body 1 through the water inlet 5, the diameters of the water inlet 5 and the water outlet 6 are three to four times that of the sewage outlet 7, when the water inflow of the water inlet 5 is smaller than that of the sewage outlet 7, rainwater enters the sewage cavity 4 from the water-discarding port 9 and is normally discarded, when the water inflow of the water inlet 5 is larger than that of the sewage outlet 7, the excessive water flow can jack up the floating ball, at the moment, the water-discarding port 9 is closed, the rainwater enters the reservoir through the filter screen 8 to filter clean rainwater, the water-discarding process is completed, in the process, the interception and filtration of sewage are effectively realized through the arrangement of the screen 13, the blocking of the water-discarding port 9 and the blocking of the sewage cavity 4 are avoided, and meanwhile, the sewage is intercepted in the filter cavity 3, so that the subsequent periodic cleaning is convenient, the structure is simple, the operation is convenient, and the practicability is strong.