CN212615430U - Immersible pump convenient to maintain impeller - Google Patents

Abstract

The utility model provides a immersible pump convenient to maintain impeller, the purpose is solved current immersible pump and is not convenient for maintain the technical problem of impeller. The adopted technical scheme is as follows: a submersible pump convenient for maintaining an impeller comprises a pressurizing chamber, a motor chamber and a filter cover; the left end of the pressure chamber is provided with an opening, and the right wall of the pressure chamber is provided with a water outlet; an impeller is arranged at the left end in the pressurizing chamber, and the size of the impeller is smaller than that of the opening; the motor chamber is arranged on the right side of the impeller in the pressurizing chamber; a motor is arranged in the motor chamber; the rotating shaft of the motor is coaxially and fixedly connected with the impeller; the filter cover is buckled at the left end of the pressurizing chamber; the filter cover and the pressure chamber are correspondingly provided with a first annular ridge surrounding the outer wall and fixedly connected through a bolt penetrating through the first annular ridge; the right end of the filter cover is provided with an annular wall with a passage opening, the passage opening and the impeller are coaxial, and the diameter of the passage opening is smaller than the outer diameter of the rotation track of the impeller; the annular wall of the filter cover is provided with a plurality of filter holes.

Description

Immersible pump convenient to maintain impeller

Technical Field

The utility model relates to a immersible pump technical field, concretely relates to immersible pump convenient to maintain impeller.

Background

The submersible pump can be used for bathing in hot spring, extracting underground water from deep well, and water extraction projects such as rivers, reservoirs, water channels and the like. The water-saving device is mainly used for farmland irrigation and water for people and livestock in high mountain areas, and can also be used for central air-conditioning cooling, heat pump units, cold pump units, cities, factories, railways, mines and construction sites for water drainage.

When the submersible pump is used, an impeller of the submersible pump is easily damaged or blocked due to the fact that sundries are sucked; most of the existing submersible pumps are troublesome to disassemble and assemble, and the impeller is inconvenient to maintain or replace.

Disclosure of Invention

An object of the utility model is to provide a immersible pump convenient to maintain impeller, it can be maintained the impeller convenient and fast ground.

In order to achieve the above object, the utility model adopts the following technical scheme:

a submersible pump that facilitates maintenance of an impeller, comprising:

a pressurizing chamber which is cylindrical and extends in the left-right direction; the left end of the pressure chamber is provided with an opening, and the right wall of the pressure chamber is provided with a water outlet; an impeller is arranged at the left end in the pressurizing chamber, and the size of the impeller is smaller than that of the opening;

the motor chamber is arranged in the pressurizing chamber and is positioned on the right side of the impeller; a water flow channel is reserved between the outer wall of the motor chamber and the inner wall of the pressurizing chamber; a motor is arranged in the motor chamber and is filled with insulating liquid; a rotating shaft of the motor penetrates out of the left wall of the motor chamber and is coaxially and fixedly connected with the impeller;

a filter cover which is in a shape of a vessel and is buckled at the left end of the pressurizing chamber; the filter cover and the pressure chamber are correspondingly provided with a first annular ridge surrounding the outer wall and fixedly connected through a bolt penetrating through the first annular ridge; the right end of the filter cover is provided with an annular wall with a passage opening, the passage opening and the impeller are coaxial, and the diameter of the passage opening is smaller than the outer diameter of the rotation track of the impeller; the annular wall of the filter cover is provided with a plurality of filter holes.

Optionally, the impeller is provided with a shaft through hole, and the end of the rotating shaft of the motor is provided with an insertion part adapted to the shaft through hole; the diameter of the insertion part is smaller than that of the motor rotating shaft and penetrates out of the shaft through hole; the penetrating section of the inserting part is provided with an external thread and is matched with a fastening nut.

Optionally, the impeller is provided with a limit groove extending along the axial direction on the inner wall of the shaft through hole, and the insertion part is provided with a limit edge adapted to the limit groove.

Optionally, the rotating shaft of the motor is rotatably connected with the left wall of the motor chamber through a mechanical seal.

Optionally, the pressure chamber is composed of a head cylinder, a main cylinder and a tail cover which are connected end to end, the head cylinder and the main cylinder are both of a left-right through cylindrical structure, the tail cover is funnel-shaped, and the thick end faces the main cylinder; the head cylinder and the main cylinder are correspondingly provided with a second annular ridge surrounding the outer wall and fixedly connected through bolts penetrating through the second annular ridge; the main cylinder and the tail cover are correspondingly provided with third annular ridges surrounding the outer wall and fixedly connected through bolts penetrating through the third annular ridges.

Optionally, the inner wall of the head cylinder and the outer wall of the left end of the motor chamber are correspondingly provided with connecting lugs and fixedly connected through bolts penetrating through the connecting lugs.

Optionally, the inner wall of the right end of the main cylinder is provided with a connecting lug corresponding to the outer wall of the right end of the motor chamber and fixedly connected with the connecting lug through a bolt penetrating through the connecting lug.

The utility model discloses a theory of operation does: the impeller is driven to rotate by the motor, negative pressure can be generated on the shaft part of the impeller, and outside water can be sucked into the filter cover through the filter holes and flows to the shaft part of the impeller through the passage port of the filter cover; water at the shaft part of the impeller is thrown to the periphery along with the rotation of the impeller and flows to the water outlet along the water flow channel, so that the water flows into a water pipe communicated with the water outlet; therefore, the water flow can be conveyed. When the impeller needs to be maintained or replaced, the bolt of the first annular ridge is unscrewed, and the filter cover is detached, so that the impeller can be maintained or replaced from the opening of the pressurizing chamber.

Therefore, the utility model has the advantages that: the filter cover forms filter type sealing to the opening of the pressurizing chamber, and is also provided with a passage port for guiding water flow to the shaft part of the impeller; therefore, the rotating impeller can normally convey water flow under the condition that the opening size is larger than that of the impeller; the filter cover is detached, so that the impeller can be maintained or replaced through the opening, and the impeller is more convenient and faster.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of an impeller disposed within a pressurization chamber;

FIG. 4 is a schematic view of the connection of the motor chamber to the head cartridge;

FIG. 5 is a schematic view of the connection of the motor chamber to the main drum;

FIG. 6 is a schematic view of a shaft through hole of an impeller provided with a limit groove;

FIG. 7 is a schematic view of a shaft of a motor with an insertion portion;

FIG. 8 is a schematic structural view of a filter cage;

FIG. 9 is a schematic structural view of the head cartridge;

FIG. 10 is a schematic structural view of a main cartridge;

FIG. 11 is a schematic structural view of the tail cap;

reference numerals: 1. a pressurized chamber; 2. an impeller; 3. a motor chamber; 4. a water flow channel; 5. a filter housing; 6. a first annular ridge; 7. a passage port; 8. an insertion portion; 9. a limiting groove; 10. a limiting edge; 11. a head cylinder; 12. a main barrel; 13. a tail cover; 14. a second annular ridge; 15. and a third annular ridge.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 11.

The embodiment of the utility model provides a immersible pump convenient to maintain impeller 2, this immersible pump includes:

a pressurizing chamber 1 having a cylindrical shape and extending in the left-right direction; the left end of the pressure chamber 1 is provided with an opening, and the right wall of the pressure chamber is provided with a water outlet; an impeller 2 is arranged at the left end in the pressurizing chamber 1, and the size of the impeller 2 is smaller than that of the opening;

a motor chamber 3 provided in the pressurizing chamber 1 and located on the right side of the impeller 2; a water flow channel 4 is reserved between the outer wall of the motor chamber 3 and the inner wall of the pressurizing chamber 1; a motor is arranged in the motor chamber 3, and insulating liquid is filled in the motor chamber; and a rotating shaft of the motor penetrates out of the left wall of the motor chamber 3 and is coaxially and fixedly connected with the impeller 2. It should be understood that a liquid injection port may be provided in the motor chamber 3 and a sealing plug may be fitted; the insulating liquid is a liquid material with insulating property and plays roles of insulation, cooling, impregnation, filling and the like in an electrical product; common insulating liquids include transformer oil, capacitor oil, insulating oil for power cables, and silicone oil. In addition, the motor chamber 3 and the pressurizing chamber 1 are respectively provided with a through hole through which the power supply line passes and a sealing member.

A filter cover 5 which is in a dish shape and is buckled at the left end of the pressurizing chamber 1; the filter cover 5 and the pressurizing chamber 1 are correspondingly provided with a first annular ridge 6 surrounding the outer wall and fixedly connected through a bolt penetrating through the first annular ridge 6; the right end of the filter housing 5 is provided with an annular wall with a passage opening 7, the passage opening 7 and the impeller 2 are coaxial, and the diameter of the passage opening 7 is smaller than the outer diameter of the rotation track of the impeller 2; the annular wall of the filter cover 5 is provided with a plurality of filter holes.

The embodiment of the present invention is explained below, the impeller 2 is driven to rotate by the motor, negative pressure is generated at the shaft part of the impeller 2, and external water is sucked into the filter cover 5 through the filter hole and flows to the shaft part of the impeller 2 through the passage opening 7 of the filter cover 5; water at the shaft part of the impeller 2 is thrown to the periphery along with the rotation of the impeller 2 and flows to the water outlet along the water flow channel 4, so that the water flows into a water pipe communicated with the water outlet; therefore, the water flow can be conveyed. When the impeller 2 needs to be maintained or replaced, the bolt of the first annular ridge 6 is unscrewed, and the filter cover 5 is detached, so that the impeller 2 can be maintained or replaced from the opening of the pressurizing chamber 1. The utility model is provided with a filter cover 5 which forms a filter type seal to the opening of the pressurizing chamber 1, and meanwhile, the filter cover 5 is provided with a passage opening 7 which leads the water flow to the shaft part of the impeller 2; thus, under the condition that the opening size is larger than that of the impeller 2, the rotating impeller 2 can also normally convey water flow; the impeller 2 can be maintained or replaced through the opening after the filter cover 5 is detached, and the operation is more convenient and faster.

In the embodiment provided by the application, the impeller 2 is provided with a shaft through hole, and the end part of the rotating shaft of the motor is provided with an insertion part 8 matched with the shaft through hole; the diameter of the insertion part 8 is smaller than that of the motor rotating shaft and penetrates out of the shaft through hole; the penetrating section of the inserting part 8 is provided with an external thread and is matched with a fastening nut. It should be understood that, wear to establish impeller 2 in the portion of inserting 8 of motor shaft, then to insert 8 screw up fastening nut, screw up, can make impeller 2 and motor shaft coaxial rigid coupling, impeller 2 is connected through above-mentioned mode with the motor shaft, easy dismounting is convenient for maintain or change impeller 2.

In the embodiment given in the present application, the impeller 2 is provided with a limit groove 9 extending in the axial direction on the inner wall of the shaft through hole, and the insertion portion 8 is provided with a limit rib 10 adapted to the limit groove 9. It will be appreciated that the impeller 2 is prevented from rotating relative to the insert portion 8 by the engagement of the stop rib 10 with the stop groove 9, thereby preventing the impeller 2 from rotating relative to the insert portion 8 and causing the fastening nut to loosen.

In the embodiment given in the present application, the rotating shaft of the motor is rotatably connected with the left wall of the motor chamber 3 through a mechanical seal.

In the embodiment provided by the application, the pressurizing chamber 1 is composed of a head cylinder 11, a main cylinder 12 and a tail cover 13 which are connected end to end, the head cylinder 11 and the main cylinder 12 are both of a left-right through cylindrical structure, the tail cover 13 is funnel-shaped, and the wide-mouth end faces the main cylinder 12; the head cylinder 11 and the main cylinder 12 are correspondingly provided with a second annular ridge 14 surrounding the outer wall and fixedly connected through bolts penetrating through the second annular ridge 14; the main cylinder 12 and the tail cover 13 are correspondingly provided with a third annular ridge 15 surrounding the outer wall, and are fixedly connected through bolts penetrating through the third annular ridge 15. It should be understood that, in order to ensure the sealing performance of the pressurized chamber 1, a matched socket and a matched socket can be arranged at the right end of the head cylinder 11 and the left end of the main cylinder 12, and a matched socket can be arranged at the right end of the main cylinder 12 and the left end of the tail cover 13; and labyrinth seals and adaptive sealing elements are arranged on the outer wall of the socket and the inner wall of the socket. The pressurization chamber 1 is set to a three-section structure, so that the assembly, disassembly and maintenance are more convenient.

In the embodiment provided by the application, the inner wall of the head cylinder 11 and the outer wall of the left end of the motor chamber 3 are correspondingly provided with connecting lugs and fixedly connected through bolts penetrating through the connecting lugs.

In the embodiment provided by the application, the inner wall of the right end of the main barrel 12 and the outer wall of the right end of the motor chamber 3 are correspondingly provided with connecting lugs and fixedly connected through bolts penetrating through the connecting lugs. It should be understood that, when installing the motor chamber 3, the left end of the motor chamber 3 is connected to the head cylinder 11, the main cylinder 12 is connected to the right end of the motor chamber 3, and finally the tail cover 13 is connected to the main cylinder 12.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, and these changes and modifications are intended to fall within the scope of the invention.

Claims (6)

1. The utility model provides a immersible pump convenient to maintain impeller which characterized in that: the method comprises the following steps:

a pressurizing chamber (1) which is cylindrical and extends in the left-right direction; the left end of the pressure chamber (1) is provided with an opening, and the right wall of the pressure chamber is provided with a water outlet; an impeller (2) is arranged at the left end in the pressurizing chamber (1), and the size of the impeller (2) is smaller than that of the opening;

a motor chamber (3) which is provided in the pressurizing chamber (1) and is located on the right side of the impeller (2); a water flow channel (4) is reserved between the outer wall of the motor chamber (3) and the inner wall of the pressurizing chamber (1); a motor is arranged in the motor chamber (3) and is filled with insulating liquid; a rotating shaft of the motor penetrates out of the left wall of the motor chamber (3) and is coaxially and fixedly connected with the impeller (2);

a filter cover (5) which is in a shape of a dish and is buckled at the left end of the pressurizing chamber (1); the filter cover (5) and the pressurizing chamber (1) are correspondingly provided with a first annular ridge (6) surrounding the outer wall and fixedly connected through a bolt penetrating through the first annular ridge (6); the right end of the filter cover (5) is provided with an annular wall with a passage opening (7), the passage opening (7) and the impeller (2) are coaxial, and the diameter of the passage opening (7) is smaller than the outer diameter of the rotation track of the impeller (2); the annular wall of the filter cover (5) is provided with a plurality of filter holes.

2. The submersible pump to facilitate maintenance of the impeller of claim 1, wherein: the impeller (2) is provided with a shaft through hole, and the end part of a rotating shaft of the motor is provided with an insertion part (8) matched with the shaft through hole; the diameter of the insertion part (8) is smaller than that of the motor rotating shaft and penetrates out of the shaft through hole; the penetrating section of the inserting part (8) is provided with an external thread and is matched with a fastening nut.

3. The submersible pump to facilitate maintenance of the impeller of claim 2, wherein: impeller (2) set up along axially extended spacing groove (9) at the axle through-hole inner wall, insert portion (8) set up with spacing arris (10) of spacing groove (9) adaptation.

4. The submersible pump facilitating maintenance of the impeller of any of claims 1 to 3, wherein: and a rotating shaft of the motor is rotatably connected with the left wall of the motor chamber (3) through a mechanical seal.

5. The submersible pump facilitating maintenance of the impeller of any of claims 1 to 3, wherein: the pressurization chamber (1) is composed of a head cylinder (11), a main cylinder (12) and a tail cover (13) which are connected end to end, the head cylinder (11) and the main cylinder (12) are both of a left-right through cylindrical structure, the tail cover (13) is funnel-shaped, and the thick end faces the main cylinder (12); the head cylinder (11) and the main cylinder (12) are correspondingly provided with a second annular ridge (14) surrounding the outer wall and fixedly connected through bolts penetrating through the second annular ridge (14); the main cylinder (12) and the tail cover (13) are correspondingly provided with third annular ribs (15) surrounding the outer wall and fixedly connected through bolts penetrating through the third annular ribs (15).

6. The submersible pump to facilitate maintenance of the impeller of claim 5, wherein: the inner wall of the head cylinder (11) is correspondingly provided with a connecting lug with the outer wall of the left end of the motor chamber (3) and fixedly connected through a bolt penetrating through the connecting lug.

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