Sewage pump

Abstract

The invention relates to the field of sewage pumps, in particular to a sewage pump. A sewage pump comprises a base, a water pumping layer is rotationally connected to the base, a water pumping impeller is arranged in the water pumping layer, a water outlet is formed in one side of the water pumping layer, a connecting pipe is fixedly connected to the other side of the water pumping layer, a stirring box is arranged on the base, the upper portion of the side wall of the stirring box is detachably connected with the connecting pipe, and a water inlet is formed in the lower portion of the side wall of the stirring box. A stirring impeller is arranged on the upper portion in the stirring box, and an inclined plate is fixedly connected to the lower portion in the stirring box. The water pumping impeller comprises an upper-layer plate, a plurality of fan blades are fixedly connected below the upper-layer plate, and a lower-layer plate is fixedly connected below the fan blades. Sliding grooves are formed in the lower layer plate, each fan blade is slidably connected with a scraping plate, and each scraping plate is slidably connected into the corresponding sliding groove. The sewage pumping device can meet the sewage pumping requirements under different conditions.

Description

Technical Field

[0001] The present invention relates to the field of sewage pumps, and more particularly to a sewage pump. Background Art

[0002] Sewage pumps, as a professional fluid conveying equipment, are mainly derived from the actual needs of urban sewage treatment, industrial wastewater discharge, agricultural irrigation and drainage, and flood control and drainage. With the acceleration of urbanization and the continuous development of industrial production, the discharge of sewage and wastewater has increased dramatically. How to efficiently and reliably extract these sewage and wastewater from low-lying areas or specific containers and transport them to treatment systems or discharge points has become an urgent problem to be solved. Sewage pumps came into being in this context and gradually became an indispensable key equipment in water treatment systems. However, due to the different dirt content in different sewage, when the content of dirt such as silt is high, the impeller resistance will increase, which will cause the equipment to easily heat up or be damaged, affecting the sewage discharge effect. Summary of the Invention

[0003] The present invention provides a sewage pump, the purpose of which is to enable the equipment to meet the requirements for pumping sewage under different conditions.

[0004] The above objectives are achieved through the following technical solutions:

[0005] A sewage pump comprises a base, to which a pumping layer is rotatably connected, a pumping impeller is arranged in the pumping layer, a water outlet is arranged on one side of the pumping layer, a connecting pipe is fixedly connected to the other side of the pumping layer, a stirring box is arranged on the base, the upper side wall of the stirring box is detachably connected to the connecting pipe, a water inlet is arranged below the side wall of the stirring box, a stirring impeller is arranged above the inside of the stirring box, and an inclined plate is fixedly connected to the lower inside of the stirring box.

[0006] The pumping impeller comprises an upper plate, a plurality of blades are fixedly connected below the upper plate, and a lower plate is fixedly connected below the plurality of blades.

[0007] A chute is provided on the lower plate, and a scraper is slidably connected to each fan blade, and each scraper is slidably connected in the corresponding chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of a sewage pump;

[0009] Figure 2 It is a partial cross-sectional structural diagram of a sewage pump;

[0010] Figure 3 This is a structural diagram of the pumping layer;

[0011] Figure 4 It is a structural diagram of the pumping impeller and the stirring impeller;

[0012] Figure 5 Schematic diagram of the structure inside the pumping layer;

[0013] Figure 6 Schematic diagram of the structure of the baffle part;

[0014] Figure 7 It is a structural diagram of the rotating plate part;

[0015] Figure 8 It is a structural diagram of the stirring impeller part;

[0016] Figure 9 It is a structural diagram of the inclined plate and the weight box;

[0017] Figure 10 It is a structural diagram of the winding wheel part.

[0018] In the figure: base 11; motor 101; water inlet 102; weight box 103;

[0019] Pumping layer 12; upper plate 201; fan blade 202; scraper 203; lower plate 204; rotor 205; baffle 206; connecting pipe 207; rotating plate 208;

[0020] Stirring box 13; rotating shaft 301; rotating disk 302; stirring blade 303; weight block 304; inclined plate 305;

[0021] Linkage box 14; first pulley 401; second pulley 402; winding wheel 403. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 10 , in order to solve the extraction problem in different sewage conditions.

[0025] A pumping layer 12 is rotatably connected to the base 11, a pumping impeller is provided in the pumping layer 12, a water outlet is provided on one side of the pumping layer 12, and a connecting pipe 207 is fixedly connected to the other side of the pumping layer 12. A stirring box 13 is provided on the base 11, and the upper side wall of the stirring box 13 is detachably connected to the connecting pipe 207, a water inlet 102 is provided below the side wall of the stirring box 13, a stirring impeller is provided above the inside of the stirring box 13, and an inclined plate 305 is fixedly connected to the lower inside of the stirring box 13.

[0026] When the sewage pump of the present invention is working, it drives the pumping impeller in the pumping layer 12 to work. At this time, water flows from the water inlet 102 into the stirring box 13, and then enters the pumping layer 12 through the connecting pipe 207, and is then discharged from the water outlet. The water inlet 102 is located at the bottom to facilitate the extraction of sewage from below when the sewage pump is working. The height of the water inlet 102 is less than the height of the connecting pipe 207. At this time, after the sewage enters the stirring box 13, the height difference between the two will disturb its flow. After entering the stirring box 13, the high-speed sewage impacts the bottom of the connecting pipe 207, so that the heavier stones and other impurities therein can be settled, and then slide along the inclined plate 305 to be collected, and then cleaned uniformly, thereby preventing it from damaging the pumping impeller and clogging inside the pump body, affecting the pumping efficiency. When the sewage is at rest, the silt and other impurities inside it will settle. At the same time, after the sewage enters the stirring box 13 and is disturbed, the silt will also be deposited simultaneously, which will cause the sewage discharge efficiency of the sewage pump to decrease. At this time, the stirring impeller inside the stirring box 13 can stir it, thereby facilitating the mixing of the sludge in it with the water, making the sewage density uniform, avoiding excessive motor pressure due to too high density or low sewage discharge efficiency due to too low density, and increasing equipment stability.

[0027] Furthermore, when the content of large impurities such as stones in the sewage is low, the connecting pipe 207 is separated from the stirring box 13, and then the pumping layer 12 is rotated to change the direction of the connecting pipe 207, so that the sewage can be directly extracted, further improving the practicality of the present invention.

[0028] like Figures 3 to 5 , in order to solve the problem of pumping sewage.

[0029] The pumping impeller includes an upper plate 201 , a plurality of blades 202 are fixedly connected below the upper plate 201 , and a lower plate 204 is fixedly connected below the plurality of blades 202 .

[0030] The lower plate 204 is hollow in the middle and is mounted on the connecting pipe 207. When the pumping impeller is working, it drives the upper plate 201 to rotate, driving the fan blades 202 and the lower plate 204 to rotate synchronously, thereby pumping the sewage out of the connecting pipe 207. After being sucked into multiple fan blades 202, the sewage is thrown out to the surroundings and then discharged from the water outlet on the pumping layer 12.

[0031] like Figure 5 and Figure 6 , in order to solve the problem of silt accumulation on the fan blades 202.

[0032] A chute is provided on the lower plate 204 , and a scraper 203 is slidably connected to each blade 202 , and each scraper 203 is slidably connected in the corresponding chute.

[0033] When the fan blades 202 rotate at high speed, when they come into contact with sewage, sludge is likely to adhere to the surface of the fan blades 202. As the sewage pump is used, the accumulation of sludge on the fan blades 202 will affect its rotation, causing the equipment to overheat and the extraction speed to decrease. Therefore, a scraper 203 is set to slide on the surface of the fan blades 202 to clean the sludge accumulated on the surface, thereby avoiding affecting the working efficiency of the sewage pump. To ensure the sewage discharge effect, the fan blades 202 are arc-shaped. At this time, when the scraper 203 is cleaning, in order to ensure sufficient contact between the scraper 203 and the lower plate 204, the part of the scraper 203 that contacts the chute on the lower plate 204 is cylindrical, so that it can rotate in accordance with the fan blades 202 when it moves, ensuring the cleaning effect.

[0034] like Figures 6 to 8 , in order to solve the problem of the scraper 203 moving on the surface of the fan blade 202.

[0035] The lower end of each scraper 203 is rotatably connected to a runner 205 , a rotating plate 208 is provided below the lower plate 204 , a baffle 206 corresponding to the runner 205 is fixed to the rotating plate 208 , and a coil spring is provided between the rotating plate 208 and the connecting pipe 207 .

[0036] When the sewage pump is working, the centrifugal force causes the scraper 203 to be located outside the fan blade 202, and the coil spring between the rotating plate 208 and the connecting pipe 207 causes the baffle 206 to always be located at the Figure 6 At the position shown, when the lower plate 204 rotates, the baffle 206 always rotates synchronously with the rotating plate 208. At this time, each wheel 205 is in contact with the corresponding baffle 206. When the pumping work is stopped, the pumping impeller stops rotating, and the rotating plate 208 continues to rotate due to its own inertia, thereby driving the baffle 206 to push the wheel 205, thereby driving the scraper 203 to move on the fan blades 202, thereby achieving the function of cleaning the fan blades 202.

[0037] like Figure 8 , in order to solve the problem of stirring sewage to make the density of dirt uniform.

[0038] The stirring impeller includes a rotating disk 302 , on which a plurality of stirring blades 303 are provided.

[0039] A polygonal protrusion is provided under the turntable 302, and the stirring blade 303 is perpendicular to the turntable 302. Each stirring blade 303 is rotatably connected to the protrusion, and a limiting device is provided at the rotating connection so that the angle between the stirring blade 303 and the surface of the polygonal protrusion is between 90 degrees and 45 degrees. When the dirt content in the sewage is low, the stirring blade 303 is 90 degrees to the polygonal protrusion, and the stirring effect is increased when the turntable 302 rotates. Similarly, when the dirt content is high, the resistance in the stirring box 13 is large, which causes the working resistance of the stirring impeller and the pumping impeller to increase, and then the equipment will overheat and be damaged. At this time, the angle between the stirring blade 303 and the polygonal protrusion is reduced, thereby reducing the dirt content in the sewage and ensuring the stability of the equipment.

[0040] like Figure 8 , in order to solve the problem of the angle change of the stirring blade 303.

[0041] A leaf spring is provided between each stirring blade 303 and the rotating disk 302 , a weight block 304 is slidably connected in each stirring blade 303 , and a tension spring is fixedly connected between each weight block 304 and the corresponding stirring blade 303 .

[0042] The leaf spring between the stirring blade 303 and the turntable 302 makes the angle between the stirring blade 303 and the polygonal protrusion at 45 degrees. When the dirt content in the sewage is low, the rotation speed of the turntable 302 is fast, and the weight block 304 in each stirring blade 303 is driven outward by centrifugal force. At this time, the center of gravity of the stirring blade 303 is outward, and when the turntable 302 rotates, the elastic force of the leaf spring is overcome, so that the angle between the stirring blade 303 and the polygonal protrusion becomes larger, thereby increasing the stirring effect on the sewage. At this time, the dirt content in the sewage increases, thereby improving the efficiency of the sewage pump; similarly, when the dirt content in the sewage is high, the resistance of the sewage is large, which slows down the rotation speed of the turntable 302. At this time, the tension spring pulls the weight block 304 to move inward of the stirring blade 303, causing the center of gravity of the stirring blade 303 to shift inward, thereby reducing the pressure on the leaf spring, causing the angle between the polygonal protrusions of the stirring blade 303 to decrease, thereby reducing the dirt content in the sewage. The weight block 304 is used to balance the dirt content in the sewage, thereby ensuring the stability of the sewage pump.

[0043] like Figure 9 , in order to increase the stability of the sewage pump during operation.

[0044] A weight box 103 is fixedly connected to the center of the lower portion of the base 11 , and the weight box 103 is communicated with the lower portion of the stirring box 13 .

[0045] The sewage entering the agitation box 13, after being disturbed, the gravel and other heavy impurities therein slide along the inclined plate 305 into the weight box 103. The weight box 103 is located below the sewage pump, and the gravel accumulated in the weight box 103 causes the center of gravity of the entire equipment to move downward, thereby increasing the stability of the sewage pump and avoiding tipping. A switchable valve is provided on the weight box 103 to facilitate the cleaning of the gravel therein.

[0046] like Figure 1 and Figure 2 , to solve the problem of pumping impeller drive.

[0047] A motor 101 is fixedly connected to the base 11 , and an output shaft of the motor 101 is fixedly connected to the water pumping impeller.

[0048] The driving motor 101 drives the pumping impeller to rotate. The motor 101 has an emergency stop function, and then controls its emergency stop when its work is completed, so that the turn plate 208 can rotate through inertia. The motor 101 directly drives the pumping impeller to ensure the working effect of the sewage pump, and at the same time facilitates the rotation of the pumping layer 12, and only the pumping layer 12 is used for work.

[0049] like Figure 4 and Figure 10 , in order to solve the problem of synchronous operation of the stirring impeller and the pumping impeller.

[0050] A linkage box 14 is fixedly connected to the base 11, and a first pulley 401 is rotatably connected in the linkage box 14. The first pulley 401 is fixedly connected to the transmission shaft of the motor 101. A second pulley 402 is rotatably connected in the linkage box 14, and a rotating shaft 301 is fixedly connected to the second pulley 402. The rotating shaft 301 is fixedly connected to the stirring impeller, and the first pulley 401 and the second pulley 402 are connected by belt transmission.

[0051] When the motor 101 is working, it drives the first pulley 401 to rotate, and then drives the second pulley 402 to rotate through the belt, and then drives the rotating shaft 301 to rotate, thereby driving the stirring impeller to work, so that the stirring impeller and the pumping impeller work synchronously.

[0052] like Figure 1 and Figure 10 , in order to solve the entanglement problem of silk thread impurities in sewage.

[0053] A winding wheel 403 is fixedly connected to the rotating shaft 301 . The winding wheel 403 is located between the linkage box 14 and the stirring box 13 .

[0054] When the sewage pump is working, the shaft 301 rotates, which drives the winding wheel 403 to rotate. The water inlet 102 is set at the bottom of the equipment, and the sewage enters the equipment from below. Wire-like impurities are generally suspended in the water due to their light weight. At this time, as the winding wheel 403 rotates, the wire-like impurities in the sewage are wound around it, thereby preventing them from being entangled inside the equipment.

Claims

1. A sewage pump, characterized in that: It includes a base, which is rotatably connected to a pumping layer, a pumping impeller is arranged in the pumping layer, a water outlet is arranged on one side of the pumping layer, and a connecting pipe is fixedly connected to the other side of the pumping layer. A stirring box is arranged on the base, and the upper side wall of the stirring box is detachably connected to the connecting pipe, a water inlet is arranged below the side wall of the stirring box, a stirring impeller is arranged above the inside of the stirring box, and an inclined plate is fixedly connected to the lower inside of the stirring box.

2. The sewage pump according to claim 1, characterized in that: The pumping impeller comprises an upper plate, a plurality of blades are fixedly connected below the upper plate, and a lower plate is fixedly connected below the plurality of blades.

3. The sewage pump according to claim 2, characterized in that: A chute is provided on the lower plate, and a scraper is slidably connected to each fan blade, and each scraper is slidably connected in the corresponding chute.

4. The sewage pump according to claim 3, characterized in that: The lower end of each scraper is rotatably connected to a runner, a rotating plate is provided below the lower plate, a baffle corresponding to the runner is fixedly connected to the rotating plate, and a coil spring is provided between the rotating plate and the connecting pipe.

5. The sewage pump according to claim 1, characterized in that: The stirring impeller comprises a turntable on which a plurality of stirring blades are rotatably connected.

6. The sewage pump according to claim 5, characterized in that: A leaf spring is provided between each stirring blade and the rotating disk, a weight block is slidably connected in each stirring blade, and a tension spring is fixedly connected between each weight block and the corresponding stirring blade.

7. The sewage pump according to claim 1, characterized in that: A weight box is fixedly connected to the center below the base, and the weight box is communicated with the bottom of the stirring box.

8. The sewage pump according to claim 1, characterized in that: A motor is fixedly connected to the base, and an output shaft of the motor is fixedly connected to the water pumping impeller.

9. The sewage pump according to claim 8, characterized in that: A linkage box is fixedly connected to the base, a first pulley is rotatably connected in the linkage box, the first pulley is fixedly connected to the transmission shaft of the motor, a second pulley is rotatably connected in the linkage box, a rotating shaft is fixedly connected to the second pulley, the rotating shaft is fixedly connected to the stirring impeller, and the first pulley and the second pulley are connected by belt transmission.

10. The sewage pump according to claim 9, characterized in that: A winding wheel is fixedly connected to the rotating shaft and is located between the linkage box and the stirring box.

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