Sewage lifting device

Abstract

The utility model provides a sewage lifting device which comprises a water tank, and a water inlet and a volute mounting opening are formed in the water tank. The volute is detachably mounted on the volute mounting opening, and sealing cement is painted between the contact surfaces of the volute and the water tank; the volute comprises a water pumping cavity opening and a water outlet cavity opening, a water pump is installed on the water pumping cavity opening, and a water outlet pipe is installed on the water outlet cavity opening. According to the sewage lifting device, a sealing groove does not need to be formed, the structural design of the device is simplified, the production and installation cost can be reduced, compared with a traditional rubber sealing gasket, the sewage lifting device is more environmentally friendly by sealing the contact face of the volute and the water tank through the sealing cement gum, environmental pollution in the manufacturing and treatment process can be reduced, and the service life of the sewage lifting device is prolonged. The green development requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, especially sewage lifting device. BACKGROUND

[0002] Sewage lifting device is widely used in the drainage system of various buildings, especially the sewage lifting device using dry sewage pump, the sealing performance between the water tank and volute needs to be considered in the design.

[0003] At present, the common sealing technology between the water tank and volute is realized through rubber sealing ring or sealing pad, and this kind of sealing mode needs to set up special sealing groove, thereby causing to occupy more internal space of device, which is not conducive to compact design, and also increases the design and manufacturing difficulty, especially in the application of dry sewage pump outside the water tank. SUMMARY

[0004] In view of the above-mentioned defects of prior art, the utility model aims at providing a sewage lifting device to solve the problem of sealing between the water tank and volute of sewage lifting device in prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a sewage lifting device, which comprises a water tank, a water inlet and a volute mounting port are arranged on the water tank, a volute is detachably mounted on the volute mounting port, and sealing cement is coated between the contact surface of the volute and the water tank, the volute comprises a water pumping cavity and a water outlet cavity, a water pumping pump is mounted on the water pumping cavity, and a water outlet pipe is mounted on the water outlet cavity.

[0006] Further, the thickness of the sealing cement is 8mm-10mm.

[0007] Further, the volute is detachably mounted on the volute mounting port through screws.

[0008] Further, the volute mounting port is provided with two first volute mounting ports and second volute mounting ports, a first volute is detachably mounted on the first volute mounting port, and a second volute is detachably mounted on the second volute mounting port, a first water pumping pump is mounted on the water pumping cavity of the first volute, the water outlet cavity of the first volute is connected with a first water inlet of a three-way valve, a second water pumping pump is mounted on the water pumping cavity of the second volute, the water outlet cavity of the second volute is connected with a second water inlet of the three-way valve, and the water outlet pipe is connected with a water outlet of the three-way valve.

[0009] Further, a first check valve is arranged between the water outlet cavity of the first volute and the first water inlet of the three-way valve, and a second check valve is arranged between the water outlet cavity of the second volute and the second water inlet of the three-way valve.

[0010] Further, a liquid level sensor is arranged in the water tank, and the liquid level sensor is used for detecting the water level in the water tank.

[0011] Further, a backflow pipe is arranged, a first end of the backflow pipe is communicated with the water pump, and a second end of the backflow pipe is communicated with the inside of the water tank.

[0012] Further, the first end of the backflow pipe is connected with the water pump through a first tower joint, and the second end of the backflow pipe is connected with the water tank through a second tower joint.

[0013] Further, a maintenance opening is arranged on the water tank, and a maintenance cover is threadedly connected to the maintenance opening.

[0014] As described above, the sewage lifting device has the following beneficial effects: the sewage lifting device is arranged between the water pump and the water outlet pipe through the volute, so that the water outlet is uniform and continuous during water pumping, the water outlet amount is constant, the water outlet efficiency is improved, the volute and the water tank are sealed through the sealing cement in the sewage lifting device, so that a sealing groove does not need to be arranged, the sealing cement can be directly coated between the contact surfaces of the volute and the water tank, the design and processing procedures are simplified, and the design and manufacturing costs are reduced; the sealing cement has excellent fitting performance, can adapt to the small installation gap between the volute and the water tank, so that the sewage lifting device is compactly arranged, and the size of the sewage lifting device is reduced; the sealing cement can also be flexibly adapted to various complex and irregular sealing surfaces, so that the requirement for precision machining is reduced, and the sealing contact surface design is diversified; on the other hand, compared with the traditional rubber sealing gasket, the sealing cement is more environmentally friendly, can reduce environmental pollution in the manufacturing and processing process, and meets the green development requirement. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a perspective view of a sewage lifting device provided by the present application.

[0016] Figure 2 Fig. 2 is an exploded view of the sewage lifting device provided by the present application.

[0017] Figure 3 Fig. 3 is a perspective view of the sewage lifting device provided by the present application.

[0018] Figure 4The first volute is shown as a structural schematic view provided by the utility model.

[0019] Explanation of reference signs

[0020] 10 water tank

[0021] 101 water inlet

[0022] 102 volute mounting port

[0023] 1021 first volute mounting port

[0024] 1022 second volute mounting port

[0025] 103 access hole

[0026] 1031 access cover

[0027] 20 volute

[0028] 21 first volute

[0029] 22 second volute

[0030] 201 water suction cavity port

[0031] 202 water outlet cavity port

[0032] 30 water suction pump

[0033] 31 first water suction pump

[0034] 32 second water suction pump

[0035] 311 first return pipe

[0036] 321 second return pipe

[0037] 40 water outlet pipe

[0038] 50 three-way valve

[0039] 61 first check valve

[0040] 62 second check valve

[0041] 70 liquid level sensor DETAILED DESCRIPTION

[0042] The embodiments of the utility model are explained below through specific concrete examples, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied through other different specific embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model.

[0043] In the description of the utility model, it is to be explained that, unless otherwise provided and defined, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0044] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in the utility model is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0045] Please refer to Figures 1 to 4 It should be noted that the diagrams provided in the embodiments only illustrate the basic concept of the utility model in a schematic manner, and only show the components related to the utility model in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be randomly changed, and the component layout pattern can be more complex.

[0046] The utility model provides a sewage lifting device, as Figures 1 to 4 The utility model discloses a sewage lifting device, as shown in the drawing, the sewage lifting device includes water tank 10 and volute 20, wherein water tank 10 is equipped with water inlet 101 and volute mounting mouth 102, the volute 20 can be detachably installed on the volute mounting mouth 102 on water tank 10, and the volute 20 and the surface between water tank 10 are coated with sealing cement, specifically, the volute 20 includes pumping cavity mouth 201 and water outlet cavity mouth 202, pumping pump 30 is installed on the pumping cavity mouth 201, and water outlet pipe 40 is installed on the water outlet cavity mouth 202.

[0047] The sewage lifting device has the advantages that: in use, the water inlet 101 on the water tank 10 is connected with a discharge pipeline in a sewage drainage system, sewage is first discharged into the water tank 10, then the water pump 30 is opened to flow the sewage in the water tank 10 to the water outlet pipe 40 through the water pumping cavity opening 201 and the water outlet cavity opening 202 of the volute 20, the volute 20 is arranged between the water pump 30 and the water outlet pipe 40, and uniform water outlet can be ensured during water pumping, that is, the water outlet amount is constant, the water outlet efficiency is improved, the volute 20 and the water tank 10 are sealed by sealing cement in the utility model, so that a sealing groove does not need to be additionally arranged, the sealing cement can be directly coated between the contact surfaces of the volute 20 and the water tank 10, the design and processing procedures are simplified, and the design and manufacturing costs are reduced; the sealing cement has excellent adhesion, can adapt to a small installation gap between the volute and the water tank, so that the sewage lifting device can be compactly arranged, and the volume of the sewage lifting device is reduced; the sealing cement can also be flexibly adapted to various complex and irregular sealing surfaces, so that the requirement for precision machining is also reduced, and the sealing contact surface design is diversified; on the other hand, compared with the traditional rubber sealing gasket, the sealing cement is more environmentally friendly, can reduce environmental pollution in the manufacturing and processing process, and meets the green development demand.

[0048] Specifically, in the embodiment, the sealing cement is a self-adhesive thermoplastic sealing material with butyl rubber as a base material, which has excellent sealing performance and sustainability. Since the sealing cement has a long service life, compared with the traditional rubber gasket sealing method in the prior art, the problem of frequent replacement of the sealing gasket and maintenance caused by sealing failure can be reduced; and the corrosion resistance of the sealing cement is stronger, which can resist chemical corrosion in sewage, so that it can be adapted to work in a long-term high-humidity and corrosive environment, and has stronger applicability.

[0049] The volute 20 and the water tank 10 are sealed by the sealing cement, and during operation of the sewage lifting device, the viscoelasticity of the sealing cement can not only play a sealing role, but also absorb certain vibration and impact, reduce noise and mechanical stress during operation of the sewage lifting device.

[0050] Further, in the embodiment, the thickness of the sealing cement coated between the volute 20 and the water tank 10 is 8mm-10mm.

[0051] Further, as Figure 2As shown, in order to facilitate the later disassembly of the volute 20 for maintenance, in the embodiment, the volute 20 is detachably mounted on the volute mounting port 102 on the water tank 10 by screws. Specifically, when the sewage lifting device is later maintained and repaired, the sealing cement between the volute 20 and the water tank 10 can be removed by heating or using a solvent, so that cutting or disassembling parts is not required when later maintaining and repairing, making maintenance more convenient.

[0052] Further, as shown in Figure 1 and Figure 2 , in the embodiment, two volute mounting ports 102 are provided on the water tank 10, which are a first volute mounting port 1021 and a second volute mounting port 1022, the first volute 21 is detachably mounted on the first volute mounting port 1021 by screws, the second volute 22 is detachably mounted on the second volute mounting port 1022 by screws, the first water suction pump 31 is mounted on the water suction port of the first volute 21, the water outlet port of the first volute 21 is in communication with the first water inlet of the three-way valve 50, the second water suction pump 32 is mounted on the water suction port of the second volute 22, the water outlet port of the second volute 22 is in communication with the second water inlet of the three-way valve 50, and the water outlet pipe 40 is in communication with the water outlet of the three-way valve 50. Through this structural design, during operation, the first water suction pump 31 and the second water suction pump 32 can be operated alternately without interruption, thereby greatly improving the operation efficiency of the sewage lifting device. Specifically, in the embodiment, the first water suction pump and the second water suction pump are both dry sewage pumps.

[0053] Further, in order to prevent particles in the sewage from settling at the bottom of the water tank, so as to avoid excessive deposition of sewage particles at the bottom of the water tank after long-term use, which may cause blockage of the water suction port of the volute, preferably, in the embodiment, a reflux pipe is further connected to the water suction pump 30, the first end of the reflux pipe is in communication with the water suction pump 30, and the second end of the reflux pipe is in communication with the inside of the water tank 10. Through the setting of the reflux pipe, when the water suction pump 30 is operating, a part of the water will flow back to the water tank 10 through the reflux pipe, thereby agitating the sewage in the water tank, preventing particles in the sewage from settling at the bottom of the water tank and not being extracted, and greatly improving the extraction effect of the sewage.

[0054] Further, in order to improve the convenience of connecting the reflux pipe, in the embodiment, the first end of the reflux pipe is connected to the water suction pump through a first tower joint, and the second end of the reflux pipe is connected to the water tank through a second tower joint.

[0055] Specifically, as shown in Figure 1 and Figure 2As shown in the drawings, in the embodiment, two return pipes are provided, which are a first return pipe 311 and a second return pipe 321. The first end of the first return pipe 311 is in communication with the first water pump 31, and the second end of the first return pipe 311 is in communication with the water tank 10. The first end of the second return pipe 321 is in communication with the second water pump 32, and the second end of the second return pipe 321 is also in communication with the water tank 10.

[0056] Further, as shown in the drawings, Figure 1 and Figure 2 in the embodiment, a first check valve 61 is arranged between the water outlet cavity of the first volute 21 and the first water inlet of the three-way valve 50, and a second check valve 62 is arranged between the water outlet cavity of the second volute 22 and the second water inlet of the three-way valve 50. The arrangement of the first check valve and the second check valve can prevent sewage from flowing back to the water tank due to water pressure fluctuation in the water tank, thereby ensuring the continuity of water outlet.

[0057] Further, as shown in the drawings, Figure 3 in the embodiment, a liquid level sensor 70 is further arranged in the water tank 10, which is used to detect the water level in the water tank 10. During operation, the liquid level sensor 70 and the water pump 30 are connected to an external control system. When the liquid level sensor 70 detects that the water level in the water tank is higher than the set water level, the control system controls the water pump 30 to start. When the liquid level sensor 70 detects that the water level in the water tank is lower than the set water level, the control system controls the water pump to stop, thereby avoiding the water pump from idling when the water level is too low.

[0058] Further, in order to facilitate maintenance of the interior of the water tank 10 and facilitate viewing of the water level or water quality in the interior of the water tank 10, preferably, as shown in the drawings, Figure 1 in the embodiment, a maintenance opening 103 is further arranged on the water tank 10, and a maintenance cover 1031 is threadedly connected to the maintenance opening 103. Preferably, a sealing ring is further arranged on the maintenance opening 103, thereby ensuring the sealing connection of the maintenance cover 1031 and the maintenance opening 103. Specifically, as shown in the drawings, Figure 2 in the embodiment, two maintenance openings 103 are arranged on the water tank 10, one large maintenance opening and one small maintenance opening.

[0059] Further, in the embodiment, as shown in the drawings, Figure 1 a plurality of water inlets 101 are arranged on the water tank 10. The water inlets are in a closed state during design and manufacture, and during on-site use, the water inlets can be cut and connected according to the specific conditions on site.

[0060] In summary, the sewage lifting device of the utility model does not need to open a sealing groove, simplifies the structural design of the device, reduces material waste, reduces production and installation costs, can adapt to small installation gaps between the volute and the water tank, so that the sewage lifting device can be compactly arranged, the volume of the sewage lifting device is reduced, and compared with traditional rubber sealing rings or sealing pads, the contact surface of the volute and the water tank is sealed by using sealing cement, which is more environmentally friendly, can reduce environmental pollution during manufacturing and processing, and meets the green development demand.

[0061] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A sewage lifting device, characterized in that The utility model provides a water tank, a volute and a backflow pipe, and the volute is detachably installed on the volute installation opening of the water tank. The volute is detachably installed on the volute installation opening of the water tank, and sealing cement is coated between the contact surface of the volute and the water tank; the volute comprises a water pumping cavity opening and a water outlet cavity opening, wherein the water pumping pump is installed on the water pumping cavity opening, and the water outlet pipe is installed on the water outlet cavity opening. The thickness of the sealing cement is 8mm-10mm.

2. A sewage lifting device according to claim 1, characterised in that The volute is detachably installed on the volute installation opening through a screw.

3. A sewage lifting device according to claim 1, characterised in that The volute installation opening is provided with two volute installation openings, i.e., a first volute installation opening and a second volute installation opening, the first volute is detachably installed on the first volute installation opening, and the second volute is detachably installed on the second volute installation opening; the first water pumping pump is installed on the water pumping cavity opening of the first volute, the water outlet cavity opening of the first volute is connected with the first water inlet of a three-way valve, the second water pumping pump is installed on the water pumping cavity opening of the second volute, the water outlet cavity opening of the second volute is connected with the second water inlet of the three-way valve, and the water outlet pipe is connected with the water outlet of the three-way valve.

4. A sewage lifting device according to claim 1, characterised in that The first check valve is arranged between the water outlet cavity opening of the first volute and the first water inlet of the three-way valve, and the second check valve is arranged between the water outlet cavity opening of the second volute and the second water inlet of the three-way valve.

5. A sewage lifting device according to claim 4, characterised in that The water tank is further provided with a liquid level sensor for detecting the water level in the water tank.

6. A sewage lifting device according to claim 1, characterised in that The backflow pipe is further provided, the first end of the backflow pipe is connected with the water pumping pump, and the second end of the backflow pipe is connected with the inside of the water tank.

7. A sewage lifting device according to claim 1, characterised in that The first end of the backflow pipe is connected with the water pumping pump through the first pagoda joint, and the second end of the backflow pipe is connected with the water tank through the second pagoda joint.

8. A sewage lifting device according to claim 7, characterised in that The water tank is provided with an inspection opening, and the inspection cover is threadedly connected to the inspection opening.

9. A sewage lifting device according to claim 1, characterised in that ​

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