Sewage lifter

Abstract

The invention 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, 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] The invention belongs to the technical field of sewage treatment devices, and particularly relates to a sewage lift pump. Background Art

[0002] As a drainage device, the sewage lift pump is widely used in basements, ships, vehicles and other places far from the drainage riser and with poor drainage conditions, and can collect and treat domestic water in the toilet. As a whole system, it can solve the public health problems in some special places. However, in the toilets of some large public places with a large flow of people, due to the unsatisfactory sewage discharge effect, there will be sundries such as paper towels, sanitary napkins and cloth strips, which will entangle the water pump and cause the motor to be overloaded and damaged. And the traditional cutting type water pump is often blocked and the motor is entangled due to insufficient cutting ability, which is not conducive to use. Summary of the Invention

[0003] The purpose of the invention is to provide a sewage lift pump with reasonable structure, good cutting effect and not easy to be blocked.

[0004] The purpose of the invention is realized as follows:

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

[0006] In the above sewage lift pump, the crushing and sewage discharging device includes a motor, a sewage pump housing, a sewage impeller, a fixed knife seat and a moving knife disc. The motor shaft of the motor is arranged downward, and the sewage pump housing is fixed on the motor. The sewage impeller is located inside the sewage pump housing and is connected with the motor shaft of the motor. The fixed knife seat is fixed below the sewage pump housing. The moving knife disc is located below the sewage impeller and is fixedly connected with the motor shaft. The moving knife disc and the fixed knife seat are mutually attached.

[0007] In the above sewage lift pump, a fixed knife seat installation groove is arranged at the lower end of the sewage pump housing, and the fixed knife seat is connected with the sewage pump housing through the fixed knife seat installation groove.

[0008] In the above sewage lift pump, a plurality of material cutting grooves for cooperating with the moving knife disc are arranged on the fixed knife seat.

[0009] In the above sewage lift, the moving cutter disc includes a fixed seat and a plurality of moving cutters. The plurality of moving cutters are integrally formed with the fixed seat, and the cross-section of the moving cutter gradually becomes smaller from the inside to the outside.

[0010] In the above sewage lift, a triangular auxiliary groove is provided on one side of the moving cutter close to the fixed cutter seat, and one side of the triangular auxiliary groove is communicated with the outside.

[0011] In the above sewage lift, a cushion block is provided at the lower end of the crushing and sewage discharging device.

[0012] In the above sewage lift, a float sensing device is further provided in the integrated upper cover, and the float sensing device is connected to the controller.

[0013] In the above sewage lift, a sewage inlet is further provided on the integrated upper cover.

[0014] In the above sewage lift, a control panel connected to the controller is provided above the integrated upper cover.

[0015] The prominent and beneficial technical effects of the present invention compared with the prior art are:

[0016] When the water level in the sewage container of the present invention reaches the set height and is sensed by the liquid level sensing device, the liquid level sensing device transmits a signal to the crushing and sewage discharging device. At this time, the crushing and sewage discharging device starts to control, and the impurities in the sewage are crushed and discharged. The cross-section of the moving cutter is close to a triangular structure, and the inclined side is the thickest, which can improve the overall strength of the moving cutter, avoid breaking or deforming when cutting harder substances, and at the same time, this structure can also break some paper scraps or feces in the sewage during rotation, so that they can be mixed evenly with the sewage, facilitating further crushing in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 is a schematic diagram of the internal structure of the present invention.

[0020] Figure 4 is a schematic diagram of the structures of the sewage pump housing, the fixed cutter seat and the moving cutter disc of the present invention.

[0021] Figure 5 is an exploded view of the sewage pump housing, the fixed cutter seat and the moving cutter disc of the present invention.

[0022] Figure 6 is a schematic diagram of the structure of the moving cutter disc of the present invention.

[0023] 1 - Sewage container; 2 - Integrated upper cover; 3 - Float sensing device; 11 - Toilet sewage inlet;

[0024] 12 - Domestic wastewater sewage inlet; 21 - Upper container; 22 - Upper cover; 23 - Crushing and sewage discharging device; 24 - Controller; 25 - Liquid level sensing device; 26 - Sewage discharge pipe; 27 - Sewage outlet; 28 - Sewage inlet; 29 - Control panel; 231 - Motor; 232 - Sewage pump housing; 233 - Sewage impeller; 234 - Fixed knife seat; 235 - Moving knife disc; 236 - Fixed knife seat installation groove; 237 - Shearing groove; 238 - Spacer block; 2351 - Fixed seat; 2352 - Moving knife; 2353 - Triangular auxiliary groove. Detailed implementation manner

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

[0026] As Figures 1-6 shown: A sewage lift 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. One side of the upper end of the sewage container 1 is provided with a toilet sewage inlet 11, and at least one side of the lower end of the sewage container 1 is provided with a domestic wastewater sewage inlet 12. The integrated upper cover 2 includes an upper container 21, an upper cover 22, a crushing and sewage discharging device 23, a controller 24, and a liquid level sensing device 25. The upper container 21 is arranged at the upper opening of the sewage container 1. The upper cover 22 covers the inside of the upper container 21, and the crushing and sewage discharging device 23 is arranged 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 respectively connected to the crushing and sewage discharging device 23 and the liquid level sensing device 25. The crushing and sewage discharging device 23 is connected to a sewage discharge pipe 26, and the upper cover 22 is provided with a sewage outlet 27 connected to the sewage 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 crushing and sewage discharging device, and at this time, the crushing and sewage discharging device starts to control to crush and discharge the impurities in the sewage.

[0027] In the above sewage lift, the crushing and sewage discharging device 23 includes a motor 231, a sewage pump housing 232, a sewage impeller 233, a fixed knife seat 234 and a moving knife disc 235. The motor shaft of the motor 231 is arranged downward, 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 knife seat 234 is fixed below the sewage pump housing 232. The moving knife disc 235 is located below the sewage impeller 233 and is fixedly connected to the motor shaft. The moving knife disc 235 and the fixed knife seat 234 are in mutual contact. A number of cutting grooves 237 for cooperating with the moving knife disc 235 are provided on the fixed knife seat 234. Specifically, the cutting grooves cooperate with the moving knife disc to crush impurities, and the crushing and sewage discharging device is detachably connected to the integrated upper cover, which is for the convenience of later disassembly and maintenance; and the sewage impeller and the sewage pump housing are located above the fixed knife seat and the moving knife disc, which is for the convenience of the sewage impeller to discharge the sewage crushed by the fixed knife seat and the moving knife disc.

[0028] In the above sewage lift, a fixed knife seat installation groove 236 is provided at the lower end of the sewage pump housing 232. The fixed knife seat 234 is connected to the sewage pump housing 232 through the fixed knife seat installation groove 236. Specifically, the fixed knife seat installation groove provided on the sewage pump housing is for the convenience of installing the fixed knife seat. The fixed knife seat is installed in the fixed knife seat installation groove by means of bolt connection, and its lower end face is basically flush with the lower end face of the sewage pump housing.

[0029] In the above sewage lift, the moving knife disc 235 includes a fixed seat 2351 and a number of moving knives 2352. The number of moving knives 2352 is integrally formed with the fixed seat 2351. The cross section of the moving knife 2352 gradually becomes smaller from inside to outside. Specifically, the cross section of the moving knife is close to a triangular structure, and the inclined side is the thickest, which can improve the overall strength of the moving knife, avoid breaking or deforming when cutting harder substances, and at the same time, this structure can also break some paper scraps or feces in the sewage during rotation, making them mix evenly with the sewage for further crushing later.

[0030] In the above sewage lift, a triangular auxiliary groove 2353 is provided on one side of the moving knife 2352 close to the fixed knife seat 234, and one side of the triangular auxiliary groove 2353 is communicated with the outside. Specifically, there are two cutting edges on the moving knife. The cutting edge one 300 is the opening of the triangular auxiliary groove, and the cutting edge two 301 is the bottom of the triangular auxiliary groove. The cutting edge one is mainly used for crushing larger impurities, while the cutting edge two is for re-crushing small impurities, and the designed triangular auxiliary groove can play a role in collecting and crushing.

[0031] In the above sewage lift, a cushion block 238 is provided at the lower end of the crushing and sewage discharging device 23. Specifically, this is to prevent the crushing and sewage discharging device from moving towards the bottom of the sewage container during operation. The number of cushion blocks is two or three. During the process of crushing the sewage and impurities in the sewage container, they will impact the cushion blocks, and the cushion blocks can also play a partial role in crushing.

[0032] In the above sewage lift, a float sensor device 3 is further provided in the integrated upper cover 2. The float sensor device 3 is connected to the controller 24. Specifically, when the liquid level sensor device fails and the liquid in the sewage container continues to rise, when the float of the float sensor device reaches the set position, the float sensor device will transmit a signal to the controller, and then the controller controls the crushing and sewage discharging device to start, and the crushing and sewage discharging device crushes and discharges the sewage in the sewage container.

[0033] In the above sewage lift, a sewage inlet 28 is further provided on the integrated upper cover 2. Specifically, this is to increase the sewage inlet and better handle the sewage generated by household items.

[0034] In the above sewage lift, a control panel 29 connected to the controller 24 is provided above the integrated upper cover 2. Specifically, this is to better control the sewage lift.

[0035] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

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

2. The sewage lifting device according to claim 1, characterized in that: The pulverizing sewage discharge device (23) comprises a motor (231), a sewage discharge pump housing (232), a sewage discharge impeller (233), a fixed blade seat (234) and a movable blade disc (235); the motor shaft of the motor (231) is arranged downward, and the sewage discharge pump housing (232) is fixed on the motor (231); the sewage discharge impeller (233) is located in the sewage discharge pump housing (232) and is connected to the motor shaft of the motor (231); the fixed blade seat (234) is fixed below the sewage discharge pump housing (232); the movable blade disc (235) is located below the sewage discharge impeller (233) and is fixedly connected to the motor shaft; the movable blade disc (235) and the fixed blade seat (234) are in contact with each other.

3. The sewage lifting device according to claim 2, characterized in that: A fixed blade seat installation groove (236) is provided at the lower end of the sewage pump housing (232), and the fixed blade seat (234) is connected to the sewage pump housing (232) via the fixed blade seat installation groove (236).

4. The sewage lifting device according to claim 2, characterized in that: The fixed knife seat (234) is provided with a plurality of shearing grooves (237) for use with the movable knife disc (235).

5. The sewage lifting device according to claim 2, characterized in that: The movable knife disc (235) comprises a fixed seat (2351) and a plurality of movable knives (2352); the plurality of movable knives (2352) are integrally formed with the fixed seat (2351); and the cross-section of the movable knives (2352) gradually decreases from the inside to the outside.

6. The sewage lifting device according to claim 5, characterized in that: A triangular auxiliary groove (2353) is provided on a side of the movable knife (2352) close to the fixed knife seat (234), and one side of the triangular auxiliary groove (2353) is connected to the outside.

7. The sewage lift according to claim 1 or 2 or 3 or 4 or 5 or 5, characterized in that: A cushion block (238) is provided at the lower end of the crushing and sewage discharge device (23).

8. The sewage lifting device according to claim 7, characterized in that: A float sensing device (3) is also provided in the integrated upper cover (2), and the float sensing device (3) is connected to the controller (24).

9. The sewage lifting device according to claim 7, characterized in that: The integrated upper cover (2) is also provided with a sewage inlet (28).

10. The sewage lifting device according to claim 7, characterized in that: A control panel (29) connected to the controller (24) is arranged above the integrated upper cover (2).

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