Sewage lifter

Abstract

The utility model belongs to the technical field of sewage treatment devices, and particularly relates to a sewage lifter which comprises a sewage container with an upper opening and an integrated upper cover, the integrated upper cover covers the upper opening of the sewage container, and a closestool sewage inlet is formed in one side of the upper end of the sewage container. At least one side of the lower end part of the sewage container is provided with a domestic wastewater inlet, the integrated upper cover comprises an upper container, an upper cover, a crushing and sewage discharging device, a circuit board and a liquid level sensing device, the upper container is arranged at an upper opening of the sewage container, the upper cover is covered in the upper container, the crushing and sewage discharging device is arranged in the upper container, and the circuit board is arranged in the upper container. The upper container is connected with the upper cover, the working end of the circuit board extends into the sewage container, the circuit board is located on the upper container and the upper cover and connected with the smashing and sewage discharging device and the liquid level sensing device respectively, the smashing and sewage discharging device is connected with a sewage discharging pipe, and the upper cover is provided with a sewage discharging opening connected with the sewage discharging pipe. And the sewage lifter is not easy to block.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment devices, and specifically refers to a sewage lifting device. Background Technology

[0002] Sewage lifting stations, as a type of drainage equipment, are widely used in basements, ships, vehicles, and other places far from drainage risers or with poor drainage conditions. They collect and treat domestic wastewater from toilets. As a complete system, it can solve public health problems in some special places. However, in some large public toilets with high traffic, due to unsatisfactory sewage discharge, paper towels, sanitary napkins, and rags can get tangled in the pump, causing motor overload and damage. Traditional cutting-type pumps, due to insufficient cutting capacity, often clog and the motor gets tangled, making them unsuitable for use. Utility Model Content

[0003] The purpose of this invention is to provide a sewage lifting device with a reasonable structure, good cutting effect, and that is not easily clogged.

[0004] The purpose of this utility model is achieved as follows:

[0005] A sewage lifting device includes a sewage container with an upper opening and an integrated top cover. The integrated top cover covers the upper opening of the sewage container. A toilet inlet is provided on one side of the upper end of the sewage container, and a domestic wastewater inlet is provided on at least one side of the lower end of the sewage container. The integrated top cover includes an upper container, a top cover, a pulverizing and discharging device, a controller, and a liquid level sensor. The upper container is located at the upper opening of the sewage container, and the top cover covers the upper container. The pulverizing and discharging device is located inside the upper container, and its working end extends into the sewage container. The controller is located in the upper container and the top cover, and is connected to the pulverizing and discharging device and the liquid level sensor, respectively. The pulverizing and discharging device is connected to a discharge pipe, and the top cover is provided with a discharge port connected to the discharge pipe.

[0006] In the aforementioned sewage lifting device, the pulverizing and discharging device includes a motor, a sewage pump housing, a sewage impeller, a fixed cutter holder, and a movable cutter disc. The motor shaft of the motor is arranged downwards, and the sewage pump housing is fixed on the motor. The sewage impeller is located inside the sewage pump housing and is connected to the motor shaft. The fixed cutter holder is fixed below the sewage pump housing, and the movable cutter disc is located below the sewage impeller and is fixedly connected to the motor shaft. The movable cutter disc and the fixed cutter holder are in close contact with each other.

[0007] In the aforementioned sewage lifting device, a fixed blade holder mounting groove is provided at the lower end of the sewage pump casing, and the fixed blade holder is connected to the sewage pump casing through the fixed blade holder mounting groove.

[0008] In the aforementioned sewage lifting device, the fixed blade holder is provided with several shearing grooves that work in conjunction with the moving blade disc.

[0009] In the aforementioned sewage lifting device, the moving cutter disc includes a fixed base and several moving cutters. The several moving cutters are integrally formed with the fixed base, and the cross-section of the moving cutters gradually decreases from the inside to the outside.

[0010] In the aforementioned sewage lifting device, a triangular auxiliary groove is provided on one side of the moving blade near the fixed blade seat, and one side of the triangular auxiliary groove is connected to the outside.

[0011] In the aforementioned sewage lifting device, a pad is provided at the lower end of the pulverizing and discharging device.

[0012] In the aforementioned sewage lifting device, a float sensor is also installed inside the integrated top cover, and the float sensor is connected to the controller.

[0013] In the aforementioned sewage lifting device, the integrated top cover is also provided with a sewage inlet.

[0014] In the aforementioned sewage lifting device, a control panel connected to the controller is provided on the top of the integrated cover.

[0015] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0016] In this invention, the water level in the sewage container reaches a set height and is detected by a liquid level sensor. The liquid level sensor transmits a signal to the pulverizing and discharging device, at which point the pulverizing and discharging device begins to control and pulverize and discharge the impurities in the sewage. The cross-section of the moving blade is close to a triangular structure, and its oblique side is the thickest. This can improve the overall strength of the moving blade and prevent it from breaking or deforming when cutting harder materials. At the same time, this structure can also break up some paper scraps or feces in the sewage when rotating, so that they can be mixed evenly with the sewage, which is convenient for further pulverization later. Attached Figure Description

[0017] Figure 1 This is a simplified structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the sewage pump casing, fixed cutter holder, and moving cutter disc of this utility model.

[0021] Figure 5 This is an exploded view of the sewage pump casing, fixed cutter head, and moving cutter disc of this utility model.

[0022] Figure 6This is a schematic diagram of the structure of the moving cutter head of this utility model.

[0023] 1-Sewage container; 2-Integrated cover; 3-Float sensor; 11-Toilet inlet;

[0024] 12-Domestic wastewater inlet; 21-Upper container; 22-Top cover; 23-Pulverizing and discharging device; 24-Controller; 25-Liquid level sensor; 26-Discharge pipe; 27-Discharge port; 28-Inlet; 29-Control panel; 231-Motor; 232-Discharge pump casing; 233-Discharge impeller; 234-Fixed cutter holder; 235-Moving cutter disc; 236-Fixed cutter holder mounting slot; 237-Shearing groove; 238-Padded block; 2351-Fixed base; 2352-Moving cutter; 2353-Triangular auxiliary groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] like Figures 1-6 As shown: A sewage lifting device includes a sewage container 1 with an upper opening and an integrated upper cover 2. The integrated upper cover 2 covers the upper opening of the sewage container 1. A toilet inlet 11 is provided on one side of the upper end of the sewage container 1, and a domestic wastewater inlet 12 is provided on at least one side of the lower end of the sewage container 1. The integrated upper cover 2 includes an upper container 21, an upper cover 22, a pulverizing and discharging device 23, a controller 24, and a liquid level sensor 25. The upper container 21 is located at the upper opening of the sewage container 1, and the upper cover 22 covers the upper container 21. The sludge removal device 23 is installed inside the upper container 21, and its working end extends into the sewage container 1. The controller 24 is located between the upper container 21 and the upper cover 22, and is connected to the shredder and sludge removal device 23 and the liquid level sensing device 25, respectively. The shredder and sludge removal device 23 is connected to the sludge discharge pipe 26, and the upper cover 22 is provided with a sludge discharge port 27 connected to the sludge discharge pipe 26. Specifically, when the water level in the sewage container reaches the set height and is sensed by the liquid level sensing device, the liquid level sensing device transmits a signal to the shredder and sludge removal device. At this time, the shredder and sludge removal device starts to control and shreds and discharges the impurities in the sewage.

[0027] In the aforementioned sewage lifting station, the pulverizing and discharging device 23 includes a motor 231, a sewage pump housing 232, a sewage impeller 233, a fixed cutter holder 234, and a movable cutter disc 235. The motor shaft of the motor 231 is arranged downwards, and the sewage pump housing 232 is fixed to the motor 231. The sewage impeller 233 is located inside the sewage pump housing 232 and connected to the motor shaft of the motor 231. The fixed cutter holder 234 is fixed below the sewage pump housing 232, and the movable cutter disc 235 is located below the sewage impeller 233. The moving cutter disc 235 and the fixed cutter seat 234 are fixedly connected to the motor shaft and fit together. The fixed cutter seat 234 is provided with several shearing grooves 237 that cooperate with the moving cutter disc 235. Specifically, the shearing grooves cooperate with the moving cutter disc to crush impurities. The crushing and sewage discharge device is detachably connected to the integrated top cover to facilitate disassembly and maintenance in the future. The sewage discharge impeller and the sewage pump casing are located above the fixed cutter seat and the moving cutter disc to facilitate the sewage discharge after crushing by the fixed cutter seat and the moving cutter disc.

[0028] In the aforementioned sewage lifting device, a fixed blade holder mounting groove 236 is provided at the lower end of the sewage pump housing 232. The fixed blade holder 234 is connected to the sewage pump housing 232 through the fixed blade holder mounting groove 236. Specifically, the fixed blade holder mounting groove provided on the sewage pump housing is for the convenience of installing the fixed blade holder. The fixed blade holder is installed in the fixed blade holder mounting groove by bolt connection, and its lower end face is basically flush with the lower end face of the sewage pump housing.

[0029] In the aforementioned sewage lifting device, the moving blade disc 235 includes a fixed base 2351 and several moving blades 2352. The several moving blades 2352 are integrally formed with the fixed base 2351. The cross-section of the moving blades 2352 gradually decreases from the inside to the outside. Specifically, the cross-section of the moving blade is close to a triangular structure, and its oblique side is the thickest. This can improve the overall strength of the moving blade and avoid breaking or deforming when cutting harder materials. At the same time, this structure can also break up some paper scraps or feces in the sewage when rotating, so that they can be mixed evenly with the sewage, which is convenient for further crushing in the later stage.

[0030] In the aforementioned sewage lifting device, a triangular auxiliary groove 2353 is provided on one side of the moving blade 2352 near the fixed blade seat 234, and one side of the triangular auxiliary groove 2353 is connected to the outside. Specifically, the moving blade has two cutting edges: cutting edge one 300 is the opening of the triangular auxiliary groove, and cutting edge two 301 is the bottom of the triangular auxiliary groove. Cutting edge one is mainly used to crush larger impurities, while cutting edge two is used to further crush smaller impurities. The designed triangular auxiliary groove can also play a role in collecting and crushing materials.

[0031] In the aforementioned sewage lifting device, a pad 238 is provided at the lower end of the pulverizing and discharging device 23. Specifically, this is to prevent the pulverizing and discharging device from moving towards the bottom of the sewage container when it is working. The number of pads is two or three. During the pulverizing process, the sewage and impurities in the sewage container will impact the pads, and the pads can also have a partial pulverizing effect.

[0032] In the aforementioned sewage lifting device, a float sensor 3 is also installed inside the integrated top cover 2. The float sensor 3 is connected to the controller 24. Specifically, when the liquid level sensor fails and the liquid in the sewage container continues to rise, when the float of the float sensor reaches the set position, the float sensor will send a signal to the controller. Then, the controller will control the pulverizing and sewage discharge device to start, and the pulverizing and sewage discharge device will pulverize and discharge the sewage in the sewage container.

[0033] In the aforementioned sewage lifting device, the integrated top cover 2 is also provided with a sewage inlet 28. Specifically, this is to increase the sewage inlet so as to better treat the sewage generated by household products.

[0034] In the aforementioned sewage lifting device, a control panel 29 connected to the controller 24 is provided on the top of the integrated cover 2. Specifically, this is for better control of the sewage lifting device.

[0035] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A sewage ejector comprising a sewage container (1) with an upper opening and an integrated upper cover (2), characterized in that: The integrated cover (2) covers the upper opening of the sewage container (1). A toilet inlet (11) is provided on one side of the upper end of the sewage container (1), and a domestic wastewater inlet (12) is provided on at least one side of the lower end of the sewage container (1). The integrated cover (2) includes an upper container (21), a cover (22), a pulverizing and discharging device (23), a controller (24), and a liquid level sensing device (25). The upper container (21) is located at the upper opening of the sewage container (1). The upper cover (22) covers the upper container (21), and the crushing and sewage discharge device (23) is set inside the upper container (21), with its working end extending into the sewage container (1). The controller (24) is located in the upper container (21) and the upper cover (22), and is connected to the crushing and sewage discharge device (23) and the liquid level sensing device (25) respectively. The crushing and sewage discharge device (23) is connected to a sewage pipe (26), and the upper cover (22) is provided with a sewage outlet (27) connected to the sewage pipe (26).

2. A sewage ejector as claimed in claim 1, characterised in that: The pulverizing and discharging device (23) includes a motor (231), a sewage pump housing (232), a sewage impeller (233), a fixed blade holder (234), and a movable blade disc (235). The motor shaft of the motor (231) is arranged downwards, and the sewage pump housing (232) is fixed on the motor (231). The sewage impeller (233) is located inside the sewage pump housing (232) and is connected to the motor shaft of the motor (231). The fixed blade holder (234) is fixed below the sewage pump housing (232). The movable blade disc (235) is located below the sewage impeller (233) and is fixedly connected to the motor shaft. The movable blade disc (235) and the fixed blade holder (234) are in close contact with each other.

3. A sewage ejector as claimed in claim 2, characterised in that: The lower end of the sewage pump casing (232) is provided with a fixed knife holder mounting groove (236), and the fixed knife holder (234) is connected to the sewage pump casing (232) through the fixed knife holder mounting groove (236).

4. The sewage ejector of claim 2, wherein: The fixed blade holder (234) has several shearing grooves (237) that work in conjunction with the moving blade disc (235).

5. The sewage ejector of claim 2, wherein: The moving blade disc (235) includes a fixed base (2351) and a plurality of moving blades (2352). The plurality of moving blades (2352) are integrally formed with the fixed base (2351), and the cross-section of the moving blades (2352) gradually decreases from the inside to the outside.

6. A sewage ejector as claimed in claim 5, characterised in that: The moving blade (2352) has a triangular auxiliary groove (2353) on one side near the fixed blade holder (234), and one side of the triangular auxiliary groove (2353) is connected to the outside.

7. A sewage ejector as claimed in claim 1 or 2 or 3 or 4 or 5 wherein: A pad (238) is provided at the lower end of the crushing and sewage discharge device (23).

8. A sewage ejector as claimed in claim 7, characterised in that: The integrated top cover (2) is also equipped with a float sensing device (3), which is connected to the controller (24).

9. The sewage ejector of claim 7, wherein: The integrated cover (2) is also provided with a sewage inlet (28).

10. The sewage ejector of claim 7, wherein: The integrated top cover (2) is provided with a control panel (29) connected to the controller (24).

Images