Pollution discharge device

Abstract

The utility model relates to a blowdown device. The blowdown device comprises a machine shell assembly, a water pumping mechanism and a control mechanism. The water pumping mechanism comprises a mounting seat assembly, a pump assembly and a sewage discharge pipe assembly, and the mounting seat assembly is provided with a sewage discharge cavity, a sewage discharge opening and a sewage inlet. The pump assembly comprises a cutter head and a cutting knife set, the cutter head is fixed to the sewage inlet and provided with a plurality of flowing channels, the cutting knife set is provided with at least one cutting blade, the cutting blade is provided with a concave cutting groove, the cutting groove intersects to the front side surface of the cutting blade in the rotating direction, and the cutting blade is provided with a plurality of flow channels. And the inlet of the flow channel is at least partially overlapped with the rotation track of the cutting groove. The cutting blade is provided with the concave cutting groove, the cutting blade forms a horn mouth structure among the cutting groove, the flowing channel and the peripheral space, dirt is pulled by negative pressure in the dirt discharging cavity, at least part of the dirt is cut by the cutting blade on the periphery of the cutting groove, and therefore the cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary equipment, in particular to a sewage discharge device. Background Art

[0002] Existing toilets directly discharge sewage into the sewer pipe, which can easily cause blockage. Toilets installed in some basements or buildings below the sewer pipe are also difficult to discharge directly into the sewer pipe. Sanitary equipment needs to be equipped with a lifting device to discharge waste into the sewer pipe. For example, the public document with announcement number CN206428778U provides a toilet with anti-clogging and deodorizing functions. A pulverizing lift can pulverize waste and lift it into the sewer pipe.

[0003] However, the existing pulverizing elevator uses a disc blade for cutting at the pulverizing part. The blade rotates smoothly, and objects such as hair and silk threads are not easy to enter the pulverizing part, resulting in low pulverizing efficiency. Therefore, improvement is needed. Utility Model Content

[0004] In order to overcome the problems existing in the related art, an embodiment of the present utility model provides a sewage discharge device to solve the technical problem of low crushing efficiency of the sewage discharge device.

[0005] According to a first aspect of an embodiment of the present utility model, there is provided a sewage discharge device, the sewage discharge device comprising a housing assembly, a pumping mechanism installed on the housing assembly, and a control mechanism;

[0006] The pumping mechanism includes a mounting seat assembly, a pump assembly mounted on the mounting seat assembly, and a sewage pipe assembly. The mounting seat assembly is provided with a sewage cavity, a sewage outlet and a sewage inlet communicated with the sewage cavity, and the sewage pipe assembly is connected to the sewage outlet.

[0007] The pump assembly includes a cutter disc and a cutting knife group. The cutter disc is fixed to the sewage inlet. The cutter disc is provided with multiple flow channels connecting the sewage discharge chamber and the space inside the casing assembly. The cutting knife group is provided with at least one cutting blade. The cutting blade is provided with a concave cutting groove. The cutting groove intersects with the front side surface of the cutting blade in the rotation direction. The inlet of the flow channel at least partially overlaps with the rotation trajectory of the cutting groove.

[0008] In one embodiment, the cutting blade assembly includes a blade seat, and the cutting blade protrudes radially from the blade seat.

[0009] In one embodiment, the cross-sectional area of ​​the cutting blade gradually decreases from the blade seat toward the end.

[0010] In one embodiment, the cutting blade includes a disturbance surface, a support surface and a cutting surface, the cutting groove is recessed from the cutting surface and intersects with the disturbance surface, and the disturbance surface is located on the front surface of the cutting blade assembly in the rotation direction.

[0011] In one embodiment, the flow channel is arranged obliquely relative to the rotation axis of the cutting knife group, and a plurality of the flow channels are evenly arranged around the rotation axis of the cutting knife group.

[0012] In one embodiment, the cutter disc includes a cutting platform formed by partially protruding from the surface, a cutting groove is provided between two adjacent cutting platforms, the flow channel passes through the cutting platforms, and the cutting blade assembly is attached to the cutting platforms.

[0013] In one embodiment, the pump assembly includes a pump body mounted on the mounting seat assembly and an impeller connected to the pump body, the impeller is located in the sewage discharge chamber, and the cutting blade assembly and the impeller are coaxially arranged.

[0014] In one embodiment, the impeller includes a wheel disc and a plurality of guide vanes protruding from one side of the wheel disc, wherein the guide vanes protrude toward the sewage outlet and are bent from the center toward the outer edge of the wheel disc.

[0015] In one embodiment, the control mechanism includes a water level monitoring component, and the water level monitoring component is used to detect the water level in the housing component.

[0016] In one embodiment, the housing assembly includes a housing, an electrical compartment installed in the housing, and a cover located on the top of the housing, and the electrical part of the control mechanism is installed in the electrical compartment.

[0017] The technical solution provided by the embodiments of the present invention may include the following beneficial effects: the sewage chamber and the sewage chamber within the housing assembly are two spaces connected by a flow channel. When the pumping mechanism is in operation, the sewage in the sewage chamber is pumped into the sewage chamber, and the cutting blade assembly rotates relative to the cutter disc to cut and crush the sewage. The cutting blade is provided with a concave cutting groove, and the cutting blade forms a trumpet-shaped structure between the cutting groove, the flow channel, and the surrounding space. The sewage is pulled by the negative pressure within the sewage chamber, and at least part of the sewage is cut by the blades around the cutting groove, thereby improving the cutting efficiency.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0020] Figure 1 FIG1 is a schematic structural diagram showing a sewage discharge device according to an embodiment.

[0021] Figure 2 The figure shows a cross-sectional structural diagram of a sewage discharge device according to an embodiment.

[0022] Figure 3 FIG1 is a schematic structural diagram showing a pumping mechanism according to an embodiment.

[0023] Figure 4 The figure shows an exploded structure diagram of a water pumping mechanism according to an embodiment.

[0024] Figure 5 FIG1 is a schematic structural diagram of a cutting blade assembly according to an embodiment.

[0025] In the figure, the casing assembly 10; the pipe interface 11; the auxiliary interface 12; the electrical compartment 13; the cover plate 14; the outer shell 15; the sewage chamber 16; the pumping mechanism 20; the mounting seat assembly 21; the sewage chamber 211; the sewage inlet 212; the sewage outlet 213; the pump assembly 22; the cutter head 221; the flow channel 2211; the cutting platform 2212; the cutting groove 2213; the cutting knife group 222; the cutting blade 2221; the knife seat 2222; the cutting groove 2223; the cutting surface 2224; the supporting surface 2225; the disturbance surface 2226; the impeller 223; the wheel disc 2231; the guide vane 2232; the center column 2233; the pump body 224; the pump main shaft 2241; the sewage pipe assembly 23; and the control mechanism 30. DETAILED DESCRIPTION

[0026] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0027] like Figures 1 to 5 As shown, the present invention provides a sewage discharge device, which includes a casing assembly 10, a pumping mechanism 20 installed on the casing assembly 10, and a control mechanism 30. The casing assembly 10 is provided with a sewage chamber 16, and the pumping end of the pumping mechanism 20 is deep into the sewage chamber 16.

[0028] The housing assembly 10 includes a housing 15, an electrical compartment 13 mounted within the housing 15, and a cover 14 located on top of the housing 15. The electrical components of the control mechanism 30 are mounted within the electrical compartment 13. The electrical compartment 13 is separated from the wastewater chamber 16 to maintain a stable electrical environment within the electrical compartment 13. The electrical compartment 13 is located on top of the wastewater chamber 16.

[0029] The pumping mechanism 20 includes a mounting base assembly 21, a pump assembly 22 mounted on the mounting base assembly 21, and a sewage pipe assembly 23. The mounting base assembly 21 is provided with a sewage chamber 211, a sewage outlet 213 communicating with the sewage chamber 211, and a sewage inlet 212. The sewage pipe assembly 23 is connected to the sewage outlet 213. The pump assembly 22 is electrically connected to the control mechanism 30 and is used to discharge sewage in the sewage chamber 211 through the sewage outlet 213 and the sewage pipe assembly 23. The pump assembly 22 provides lifting power for the sewage flow.

[0030] The pump assembly 22 includes a blade disc 221 and a cutting blade assembly 222. The blade disc 221 is fixed to the sewage inlet 212 and is provided with a plurality of flow channels 2211 that connect the sewage discharge chamber 211 with the space within the housing assembly 10. The sewage inlet 212 is connected to the sewage chamber 16. When the pump assembly 22 is in operation, a negative pressure is formed in the sewage discharge chamber 211, and the blade disc 221 blocks the sewage inlet 212. The sewage inlet 212 can only be passed through the flow channels 2211 into the sewage discharge chamber 211.

[0031] The cutting blade assembly 222 is at least partially close to the blade disc 221. When the pumping mechanism 20 is in operation, the sewage in the sewage chamber 16 is pumped into the sewage chamber 211. The cutting blade assembly 222 rotates relative to the blade disc 221 to cut and crush the sewage.

[0032] The cutting blade assembly 222 is provided with at least one cutting blade 2221. The cutting blade 2221 is in contact with the surface of the cutter disc 221 and is provided with a concave cutting groove 2223. The inlet of the flow channel 2211 at least partially overlaps with the rotation trajectory of the cutting groove 2223. The cutting blade 2221 is provided with a concave cutting groove 2223. The cutting blade 2221 forms a bell-mouth structure between the cutting groove 2223, the flow channel 2211, and the surrounding space. Waste is pulled by the negative pressure in the waste discharge chamber 211, and at least part of the waste is cut by the blades around the cutting groove 2223, thereby improving cutting efficiency.

[0033] The pump assembly 22 includes a pump body 224, which is provided with a pump main shaft 2241. The cutting blade assembly 222 is detachably connected to the pump main shaft 2241. The cutting blade assembly 222 includes a blade holder 2222, with cutting blades 2221 protruding radially from the blade holder 2222. The cutting blades 2221 partially protrude radially from the blade holder 2222 to form a single blade or multiple blades. Preferably, the cutting blades 2221 can be provided in two, three, four, or six configurations. The multiple cutting blades 2221 are evenly distributed around the blade holder 2222 to improve cutting efficiency and rotational stability.

[0034] The cross-sectional area of ​​the cutting blade 2221 gradually decreases from the blade seat 2222 to the end, so that the cutting blade 2221 can stir the dirt in the sewage chamber 16 during rotation to prevent the dirt from accumulating at the bottom of the sewage chamber 16.

[0035] Furthermore, the cutting blade 2221 includes a disturbance surface 2226, a support surface 2225, and a cutting surface 2224. The cutting groove 2223 is recessed from the cutting surface 2224 and intersects with the disturbance surface 2226. The disturbance surface 2226 is located on the front surface of the cutting blade assembly 222 in the rotation direction. The cutting surface 2224 is in contact with or close to the surface of the blade disc 221. The disturbance surface 2226, the support surface 2225, and the cutting surface 2224 form a triangular raised structure to enhance the disturbance effect.

[0036] Preferably, the disturbance surface 2226 is a concave curved surface to guide the fluid in front of the cutting blade 2221 to be disturbed toward the periphery. Further, the support surface 2225 is a convex curved surface to increase the strength of the cutting blade 2221.

[0037] The flow channels 2211 connect the spaces on both sides of the blade disc 221. The flow channels 2211 are arranged at an angle relative to the rotation axis of the cutting blade assembly 222. Multiple flow channels 2211 are evenly spaced around the rotation axis of the cutting blade assembly 222. The inclination of the flow channels 2211 improves the efficiency of separating waste between the cutting blades 2221 and the blade disc 221, and also creates a structure similar to a cutting edge at the entrance of the flow channels 2211.

[0038] The waste flowing into the sewage cavity 211 has directionality, which can disturb the waste in the sewage cavity 211 and reduce energy consumption.

[0039] like Figures 3 to 5 As shown, the cutter disc 221 can be configured as a flat plate-like structure, or as an uneven structure with local depressions or protrusions. The cutter disc 221 includes a cutting platform 2212 formed by a local protrusion from the surface, a cutting groove 2213 is provided between two adjacent cutting platforms 2212, a flow channel 2211 passes through the cutting platform 2212, and the cutting blade assembly 222 is attached to the cutting platform 2212. Multiple cutting platforms 2212 are spaced apart to form a cutting area. The flow channel 2211 is provided at the cutting platform 2212, and the cutting groove 2213 separates two adjacent cutting platforms 2212, thereby reducing the pressure on the cutting blade assembly 222 during crushing.

[0040] The pump assembly 22 includes an impeller 223 located within the drainage chamber 211. Impeller 223 is connected to the pump main shaft 2241. Impeller 223 is spaced apart from the cutting blade assembly 222, with the cutter disc 221 located between the impeller 223 and the cutting blade assembly 222. Impeller 223 rotates to discharge waste from the drainage chamber 211. A drainage outlet 213 is located toward the output of impeller 223.

[0041] The impeller 223 comprises a disc 2231 and multiple guide vanes 2232 extending from one side of the disc 2231. The guide vanes 2232 extend toward the sewage outlet 213 and curve from the center toward the outer edge of the disc 2231. The guide vanes 2232 and disc 2231 form a structure similar to a centrifugal pump. The disc 2231 is mounted on the pump main shaft 2241, with a centrifugal space between the ends of the guide vanes 2232 and the pump main shaft 2241. The spacing between adjacent guide vanes 2232 gradually increases from the pump main shaft 2241 toward the edge.

[0042] Optionally, the impeller 223 includes a central column 2233 protruding from the wheel disc 2231 , and one end of the guide vane 2232 intersects with the central column 2233 , and the other end extends to the edge of the wheel disc 2231 .

[0043] Preferably, the number of the guide vanes 2232 can be set to two, three, four, five, six, or eight.

[0044] In one embodiment, the control mechanism 30 includes a water level monitoring assembly for detecting the water level within the housing assembly 10. The water level monitoring assembly is mounted at the bottom of the electrical compartment 13 and extends into the sewage chamber 16. When the sewage in the sewage chamber 16 reaches a preset level, the water level monitoring assembly outputs an electrical signal, causing the control mechanism 30 to operate the pumping mechanism 20 to output pump pressure.

[0045] The housing assembly 10 is provided with a pipe interface 11 for connecting to a toilet. Furthermore, the housing assembly 10 is provided with an auxiliary interface 12, which can be connected to a water supply pipe, a wash basin, a bathroom pipe or other water-using devices.

[0046] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A sewage discharge device, characterized in that: The sewage discharge device includes a housing assembly, a pumping mechanism installed on the housing assembly, and a control mechanism; The pumping mechanism includes a mounting seat assembly, a pump assembly mounted on the mounting seat assembly, and a sewage pipe assembly. The mounting seat assembly is provided with a sewage cavity, a sewage outlet and a sewage inlet communicated with the sewage cavity, and the sewage pipe assembly is connected to the sewage outlet. The pump assembly includes a cutter disc and a cutting knife group. The cutter disc is fixed to the sewage inlet. The cutter disc is provided with multiple flow channels connecting the sewage discharge chamber and the space inside the casing assembly. The cutting knife group is provided with at least one cutting blade. The cutting blade is provided with a concave cutting groove. The cutting groove intersects with the front side surface of the cutting blade in the rotation direction. The inlet of the flow channel at least partially overlaps with the rotation trajectory of the cutting groove.

2. The sewage discharge device according to claim 1, characterized in that: The cutting knife assembly includes a knife seat, and the cutting blade protrudes radially from the knife seat.

3. The sewage discharge device according to claim 2, characterized in that: The cross-sectional area of ​​the cutting blade gradually decreases from the blade seat toward the end.

4. The sewage discharge device according to claim 3, characterized in that: The cutting blade includes a disturbance surface, a support surface and a cutting surface. The cutting groove is recessed from the cutting surface and intersects with the disturbance surface. The disturbance surface is located on the front side surface of the cutting blade assembly in the rotation direction.

5. The sewage discharge device according to claim 1, characterized in that: The flow channel is arranged obliquely relative to the rotation axis of the cutting knife group, and a plurality of the flow channels are evenly arranged around the rotation axis of the cutting knife group.

6. The sewage discharge device according to claim 1, characterized in that: The cutter disc includes a cutting platform formed by partially protruding from the surface, a cutting groove is provided between two adjacent cutting platforms, the flow channel passes through the cutting platforms, and the cutting blade assembly is attached to the cutting platforms.

7. The sewage discharge device according to claim 1, characterized in that: The pump assembly comprises a pump body mounted on the mounting seat assembly and an impeller connected to the pump body. The impeller is located in the sewage discharge chamber, and the cutting blade assembly and the impeller are coaxially arranged.

8. The sewage discharge device according to claim 7, characterized in that: The impeller includes a wheel disc and a plurality of guide vanes protruding from one side of the wheel disc. The guide vanes protrude toward the sewage outlet and are bent from the center toward the outer edge of the wheel disc.

9. The sewage discharge device according to claim 1, characterized in that: The control mechanism includes a water level monitoring component, and the water level monitoring component is used to detect the water level in the casing component.

10. The sewage discharge device according to claim 1, characterized in that: The housing assembly includes a housing, an electrical compartment installed in the housing, and a cover plate located on the top of the housing. The electrical part of the control mechanism is installed in the electrical compartment.

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