Filtering submersible pump

Abstract

This utility model discloses a filter-type water pump body, belonging to the technical field of pump bodies. It includes a housing, a filter assembly, a connecting shaft, and a sealing assembly. The housing has a mounting hole, a receiving cavity, multiple inlets, and outlets, which are interconnected. The filter assembly includes a filter installed within the receiving cavity. The filter has a cavity for accommodating an impeller and a connecting hole. The connecting hole communicates with the mounting hole and is located on the same straight line. One end of the connecting shaft passes through the mounting hole and the connecting hole sequentially for connection to the impeller, and the other end is used for connection to a transmission device. The sealing assembly includes a sealing end cap and a bearing seat. The sealing end cap is fitted outside the connecting shaft and located between the filter and the housing. The bearing seat is fitted outside the connecting shaft and connected to the housing. This application can filter the liquid entering the pump body, intercepting impurities in the water, protecting the impeller from damage, extending the pump's service life and operating efficiency, preventing liquid leakage, and protecting the motor and other devices.

Description

Technical Field

[0001] This utility model relates to the field of pump body technology, and in particular to a filter-type water pump body. Background Technology

[0002] As a core piece of equipment for liquid transportation, the structure of a water pump directly determines its operating efficiency, service life, and applicable scenarios. In fields such as agricultural irrigation, municipal water supply, industrial circulation, and emergency drainage, water pumps often face complex water quality environments (such as river water containing silt, farmland water rich in organic matter, and industrial wastewater containing impurities).

[0003] Traditional water pumps often lack integrated filtration structures or simply have a single-layer filter screen installed at the inlet. When pumping water containing impurities, particles such as mud, sand, fibers, and small stones can easily enter the pump chamber directly, reducing filtration efficiency and shortening impeller life. Existing pump bodies and connecting shafts often use single packing seals or simple oil seals, which pose safety hazards and efficiency losses. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a filter-type water pump body that integrates high-efficiency filtration and reliable sealing.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A filter-type water pump body includes a housing, a filter assembly, a connecting shaft, and a sealing assembly. The housing has a mounting hole, a receiving cavity, multiple inlets, and outlets, which are connected to each other. The filter assembly includes a filter installed in the receiving cavity. The filter has a cavity for accommodating an impeller and a connecting hole, which is connected to and aligned with the mounting hole. One end of the connecting shaft passes through the mounting hole and the connecting hole in sequence for connection to the impeller, and the other end is used for connection to a transmission device. The sealing assembly includes a sealing end cap and a bearing seat. The sealing end cap is sleeved on the outside of the connecting shaft and located between the filter and the housing. The bearing seat is sleeved on the outside of the connecting shaft and connected to the housing.

[0007] Furthermore, the sealing assembly also includes a bearing and a bearing end cap. The bearing is sleeved outside the connecting shaft and located inside the bearing housing. The bearing end cap is installed at the front end of the bearing housing and abuts against the bearing.

[0008] Furthermore, the sealing assembly also includes a stationary ring, a rotating ring, and a support ring. The stationary ring, rotating ring, and support ring are all sleeved outside the connecting shaft and located inside the mounting hole. The stationary ring is connected to the sealing end cap, the rotating ring is connected to the connecting shaft, and the support ring is connected to the rotating ring.

[0009] Furthermore, the housing includes a first housing and a second housing, which are detachably connected and form the receiving cavity between them. The first housing is provided with a first water inlet and a second water inlet, and the second housing is provided with a first water outlet, a second water outlet, and the mounting hole. The extension directions of the first water inlet and the first water outlet are parallel to each other, and the extension directions of the second water inlet and the second water outlet are parallel to each other.

[0010] Furthermore, the housing also includes a locking element, through which the first housing and the second housing are connected.

[0011] Furthermore, the filter includes a top plate and a filter plate, and the filter assembly also includes a gasket. The filter plate is provided with the connection hole and a plurality of filter holes. The top plate and the filter plate are detachably connected and form the cavity between them. The gasket is disposed between the first housing and the top plate.

[0012] Furthermore, the filter-type water pump body also includes a diverter, which includes an inlet pipe, a connecting pipe, and multiple spray pipes. The inlet pipe is located inside the receiving cavity and extends out from the first inlet. The multiple spray pipes are located inside the cavity of the filter. One end of the connecting pipe is connected to the inlet pipe, and the other end is connected to the multiple spray pipes.

[0013] Compared with the prior art, the pump body of this utility model of filter-type water pump includes a housing, a filter assembly, a connecting shaft, and a sealing assembly. The housing has a mounting hole, a receiving cavity, multiple inlets, and outlets, which are connected to each other. The filter assembly includes a filter installed in the receiving cavity. The filter has a cavity for accommodating an impeller and a connecting hole. The connecting hole is connected to the mounting hole and located on the same straight line. One end of the connecting shaft passes through the mounting hole and the connecting hole in sequence for connection with the impeller, and the other end is used for connection with a transmission device. The sealing assembly includes a sealing end cover and a bearing seat. The sealing end cover is sleeved on the outside of the connecting shaft and located between the filter and the housing. The bearing seat is sleeved on the outside of the connecting shaft and connected to the housing.

[0014] In this application, by setting up a filter component, the liquid entering the pump body can be filtered, impurities in the water can be intercepted, the impeller can be protected from damage, and the service life and operating efficiency of the pump can be extended. This application can enhance the sealing performance between the connecting shaft and the housing, prevent liquid leakage, and protect the transmission device such as the motor. The structure of this application is reasonable, easy to install and maintain, and has good practicality and promotion value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the filter-type water pump body of this utility model;

[0016] Figure 2 for Figure 1 A partial structural diagram of the filter-type water pump body;

[0017] Figure 3 for Figure 1 A three-dimensional sectional view of the pump body of a filter-type water pump;

[0018] Figure 4 for Figure 3 Enlarged view of point A on the pump body of the filter-type water pump.

[0019] In the diagram: 1. Housing; 11. First housing; 111. First inlet; 112. Second inlet; 12. Second housing; 121. First outlet; 122. Second outlet; 123. Mounting hole; 13. Receiving cavity; 14. Locking element; 2. Filter assembly; 21. Filter; 211. Top plate; 212. Filter plate; 2121. Filter hole; 22. Gasket; 3. Connecting shaft; 4. Sealing assembly; 41. Sealing end cap; 42. Bearing seat; 43. Bearing; 44. Bearing end cap; 45. Stationary ring; 46. Moving ring; 47. Support ring; 5. Diverter; 51. Inlet pipe; 52. Connecting pipe; 53. Spray pipe. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Figures 1-4 The present invention relates to a filter-type water pump body, comprising a housing 1, a filter assembly 2, a connecting shaft 3, and a sealing assembly 4.

[0024] In this embodiment:

[0025] The housing 1 includes a first housing 11, a second housing 12, and a locking member 14.

[0026] The first housing 11 and the second housing 12 are detachably connected and form a receiving cavity 13 between them. The first housing 11 is provided with a first water inlet 111 and a second water inlet 112. Multiple water inlets can improve water intake efficiency and meet the needs of large flow pumping.

[0027] The second housing 12 is provided with a first water outlet 121, a second water outlet 122, and a mounting hole 123. The water inlet, the receiving cavity 13, and the water outlet are connected. The extension directions of the first water inlet 111 and the first water outlet 121 are parallel to each other, and the extension directions of the second water inlet 112 and the second water outlet 122 are parallel to each other. In this embodiment, the housing 1 is made of ductile iron, which has the characteristics of high strength and high toughness, and can ensure the structural strength of the housing 1.

[0028] The first housing 11 and the second housing 12 are connected by a locking member 14. In this embodiment, the locking member 14 is a screw, nut, bolt, or screw.

[0029] The filter assembly 2 includes a filter 21 and a gasket 22.

[0030] The filter 21 is installed inside the receiving cavity 13. The filter 21 includes a top plate 211 and a filter plate 212. The top plate 211 and the filter plate 212 are detachably connected, and a cavity for accommodating the impeller is formed between them. In this embodiment, the filter 21 is made of stainless steel, which has good corrosion resistance and wear resistance, and can extend the service life of the filter 21.

[0031] The filter plate 212 is provided with a connection hole and multiple filter holes 2121. The connection hole is connected to the mounting hole 123 and is located on the same straight line. The diameter of the filter holes 2121 is 0.5 to 5 mm. It can filter the liquid entering the cavity, intercept impurities in the water, and protect the impeller from damage.

[0032] Gasket 22 is disposed between the first housing 11 and the top plate 211.

[0033] One end of the connecting shaft 3 passes through the mounting hole 123 and the connecting hole in sequence to connect with the impeller, and the other end is used to connect with the transmission device.

[0034] The sealing assembly 4 includes a sealing end cap 41, a bearing housing 42, a bearing 43, a bearing end cap 44, a stationary ring 45, a rotating ring 46, and a support ring 47.

[0035] The sealing end cap 41 is fitted outside the connecting shaft 3 and located between the filter 21 and the second housing 12.

[0036] The bearing housing 42 is sleeved outside the connecting shaft 3 and connected to the housing 1, which can enhance the sealing performance between the connecting shaft 3 and the housing 1, prevent liquid leakage, and protect the transmission device such as the motor.

[0037] The bearing 43 is sleeved outside the connecting shaft 3 and located inside the bearing housing 42. The bearing end cap 44 is installed at the front end of the bearing housing 42 and abuts against the bearing 43. In this embodiment, the bearing 43 is a rolling bearing 43, which can reduce the frictional resistance when the connecting shaft 3 rotates and improve the transmission efficiency.

[0038] The stationary ring 45, the rotating ring 46, and the support ring 47 are all sleeved on the outside of the connecting shaft 3 and located inside the mounting hole 123. The stationary ring 45 is connected to the sealing end cover 41, the rotating ring 46 is connected to the connecting shaft 3, and the support ring 47 is connected to the rotating ring 46. This can further enhance the sealing performance between the connecting shaft 3 and the housing 1, prevent liquid leakage, and protect the transmission devices such as the motor.

[0039] The diverter 5 includes an inlet pipe 51, a connecting pipe 52, and multiple spray pipes 53. The inlet pipe 51 is located in the receiving cavity 13 and extends out from the first inlet 111. The multiple spray pipes 53 are located in the cavity of the filter 21. One end of the connecting pipe 52 is connected to the inlet pipe 51, and the other end is connected to the multiple spray pipes 53.

[0040] When in use, the transmission device drives the impeller to rotate in the cavity of the filter 21 through the connecting shaft 3. The rotation of the impeller generates negative pressure, and the liquid enters the receiving cavity 13 of the housing 1 through the first inlet 111 and the second inlet 112. It is filtered by the filter 21, and the filtered liquid is discharged through the first outlet 121 and the second outlet 122 under the action of the impeller.

[0041] In this application, by setting the filter component 2, the liquid entering the pump body can be filtered, impurities in the water can be intercepted, the impeller can be protected from damage, and the service life and operating efficiency of the pump can be extended. This application can enhance the sealing performance between the connecting shaft 3 and the housing 1, prevent liquid leakage, and protect the transmission device such as the motor. The structure of this application is reasonable, easy to install and maintain, and has good practicality and promotion value.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filter pump body of a submersible pump, comprising a housing (1), characterized in that: It also includes a filter assembly (2), a connecting shaft (3), and a sealing assembly (4). The housing (1) is provided with a mounting hole (123), a receiving cavity (13), multiple water inlets and outlets. The water inlets, receiving cavity (13), and outlets are connected to each other. The filter assembly (2) includes a filter (21), which is installed in the receiving cavity (13). The filter (21) is provided with a cavity for accommodating an impeller and a connecting hole. The connecting hole is connected to the mounting hole (123) and is located on the same straight line. One end of the connecting shaft (3) passes through the mounting hole (123) and the connecting hole in sequence for connecting to the impeller, and the other end is used for connecting to the transmission device. The sealing assembly (4) includes a sealing end cap (41) and a bearing seat (42). The sealing end cap (41) is sleeved outside the connecting shaft (3) and located between the filter (21) and the housing (1). The bearing seat (42) is sleeved outside the connecting shaft (3) and connected to the housing (1).

2. The filter pump body of claim 1, wherein: The sealing assembly (4) also includes a bearing (43) and a bearing end cap (44). The bearing (43) is sleeved outside the connecting shaft (3) and located inside the bearing seat (42). The bearing end cap (44) is installed at the front end of the bearing seat (42) and abuts against the bearing (43).

3. The filter pump body of claim 2, wherein: The sealing assembly (4) further includes a stationary ring (45), a rotating ring (46), and a support ring (47). The stationary ring (45), the rotating ring (46), and the support ring (47) are all sleeved outside the connecting shaft (3) and located inside the mounting hole (123). The stationary ring (45) is connected to the sealing end cap (41), the rotating ring (46) is connected to the connecting shaft (3), and the support ring (47) is connected to the rotating ring (46).

4. The filter pump body of claim 1, wherein: The housing (1) includes a first housing (11) and a second housing (12). The first housing (11) and the second housing (12) are detachably connected and form the receiving cavity (13) between them. The first housing (11) is provided with a first water inlet (111) and a second water inlet (112). The second housing (12) is provided with a first water outlet (121), a second water outlet (122), and the mounting hole (123). The extension directions of the first water inlet (111) and the first water outlet (121) are parallel to each other, and the extension directions of the second water inlet (112) and the second water outlet (122) are parallel to each other.

5. The filter pump body of claim 4, wherein: The housing (1) further includes a locking member (14), and the first housing (11) and the second housing (12) are connected by the locking member (14).

6. The filter pump body of claim 4, wherein: The filter (21) includes a top plate (211) and a filter plate (212). The filter assembly (2) also includes a gasket (22). The filter plate (212) is provided with the connection hole and a plurality of filter holes (2121). The top plate (211) and the filter plate (212) are detachably connected and form the cavity between them. The gasket (22) is disposed between the first housing (11) and the top plate (211).

7. The filter pump body of claim 4, wherein: The filter-type water pump body also includes a distributor (5), which includes an inlet pipe (51), a connecting pipe (52), and multiple spray pipes (53). The inlet pipe (51) is located in the receiving cavity (13) and extends out from the first inlet (111). The multiple spray pipes (53) are located in the cavity of the filter (21). One end of the connecting pipe (52) is connected to the inlet pipe (51), and the other end is connected to the multiple spray pipes (53).

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