CN215409244U

CN215409244U - Electric water pump

Info

Publication number: CN215409244U
Application number: CN202120544745.XU
Authority: CN
Inventors: 梁灿明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-01-04
Anticipated expiration: 2031-03-16

Abstract

The utility model relates to an electric water pump which comprises a motor, a shell, an impeller, a front end cover, a rear end cover and a water outlet pipe, wherein a mounting through hole is formed in the middle of the end face of the shell, an arc-shaped water outlet groove is formed in the inner wall of the mounting through hole, a water outlet hole which extends towards the water outlet groove and is communicated with the water outlet groove is formed in the outer wall of the shell, the inner diameter of the water outlet hole is identical to that of the water outlet pipe, an annular step position which is arranged along the annular direction is formed in one end, located on the outer side, of the water outlet hole, the inner diameter of the annular step position is identical to that of the water outlet pipe, the water outlet pipe is abutted and limited to the annular step position and is coaxially arranged with the water outlet hole, and the front end cover and the rear end cover are respectively connected with two ends of the mounting through hole in a sealing mode. According to the electric water pump provided by the utility model, the water pumping work of the water pump can be realized only by providing 12V voltage for the motor, and the requirements of users on stable lift and flow can be met.

Description

Electric water pump

Technical Field

The utility model relates to the field of water pumps, in particular to an electric water pump.

Background

Today advocating the environmental protection theory, without the help of fuel equipment, individual crops in the countryside waters because multiple reasons are difficult for a moment to implement, and community and high-rise building house that the water is scarce often lead to because the pressure of running water is not enough, lead to like domestic gas heater, washing machine etc. can not start because of water pressure problem equipment, and electronic little water pump on the market is most because do not have sufficient lift and flow, perhaps not in safe voltage range, is difficult to satisfy the demand. In addition, when the water outlet of the water pump is connected with the water outlet pipeline, the water outlet pipeline is usually inserted into the water outlet, so that the problem that the inner diameter of the water outlet pipeline is smaller than that of the water outlet is caused, the flow rate and the flow speed of water flow change at the joint of the water outlet and the water outlet pipeline, and the lift and the flow rate of a user in actual use are further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric water pump, which can realize the water pumping work of the water pump only by providing 12V voltage for a motor and can meet the requirements of users on stable lift and flow.

2. In order to achieve the purpose, the utility model provides an electric water pump, which comprises a motor, a shell, an impeller, a front end cover, a rear end cover and a water outlet pipe, wherein the shell is in a rectangular plate shape, the front end cover and the rear end cover are respectively in a circular plate shape, the middle part of the end surface of the shell is provided with an installation through hole for installing the impeller, the plane of the outer circumference of the installation through hole is provided with connecting holes distributed in an array manner, the inner wall of the installation through hole is provided with an arc-shaped water outlet groove, the outer wall of the shell is provided with a water outlet hole which extends to the water outlet groove and is communicated with the water outlet groove, the inner diameter of the water outlet hole is the same as the inner diameter of the water outlet pipe, one end of the water outlet hole, which is positioned at the outer side, is provided with an annular step position which is arranged along the annular direction, the inner side wall is provided with threads for connecting with an external output pipe, and the inner diameter of the annular step position is the same as the outer diameter of the water outlet pipe, the outlet pipe butt limit connect in annular step position department and outlet pipe with the wash port coaxial arrangement, front end housing and rear end cap respectively with the both ends sealing connection of installation through-hole, the impeller with the installation through-hole coaxial arrangement is installed in the installation through-hole, the motor install in on the rear end cap and the output shaft of motor with the installation through-hole coaxial arrangement, wherein:

the impeller is provided with an impeller connecting shaft, and an end seal for reducing water flowing out of the axis of the impeller is arranged at the axis of the impeller; the impeller is provided with a fixing screw hole and is fixed on an external motor output shaft through a fixing screw;

the front end cover is provided with a water inlet and a connecting port which are communicated with the outside and the impeller, the water inlet is communicated with the connecting port, and the inner side wall of the connecting port is provided with threads; the front end cover is provided with screw holes distributed in an array mode, and the screw holes are matched with the array holes of the rear end cover to lock the whole pump body through screws;

the rear end cover is provided with a through hole, and an output shaft of the motor penetrates through the through hole, is connected with the impeller and can drive the impeller to rotate.

Preferably, the end faces of the shell, the front end cover and the rear end cover are respectively provided with a plurality of connecting holes aligned in position and connected through screws penetrating through the connecting holes, and the rear end cover is provided with a dismounting hole.

Preferably, the connection port is provided on a side wall of the front end cap.

Preferably, the connector is a threaded connector and is arranged on the outer side of the front end cover and integrally formed with the front end cover.

As a preferred scheme, the impeller comprises two mounting plates and 4 blades, wherein the two mounting plates are respectively in a circular plate shape, the two mounting plates are oppositely arranged, the outer edges of the two mounting plates are aligned, the 4 blades are respectively arranged between the two mounting plates in an annular array and are respectively fixedly connected with the two mounting plates, and an impeller connecting shaft which extends outwards and is used for being connected with an output shaft of the motor is arranged at the axis of the outer surface of one mounting plate; the impeller connecting shaft is provided with two screw holes, wherein the screw holes are 90 degrees and are perpendicular to the impeller connecting shaft respectively.

As a preferable scheme, the output shaft of the motor is inserted into the impeller connecting shaft, the end of the impeller connecting shaft abuts against the end face of the rear end cover through a wear-resistant gasket, a through hole for the output shaft of the motor to pass through is formed in the axis of the rear end cover, the section of the gasket is annular, and the output shaft passes through the gasket and is connected with the impeller connecting shaft.

As a preferred scheme, the number of the connecting holes on the front end cover is 3-6, 6 the connecting holes are arranged on the front end cover along an annular array, and the rear end cover is provided with two dismounting holes.

Preferably, the outer diameter of the impeller is smaller than the inner diameter of the mounting through hole.

Preferably, the blade has a circular arc plate shape.

Preferably, the radian radius of the blade is 18mm-28 mm.

The utility model has the beneficial effects that:

(1) the impeller is driven to rotate by the small motor, water outside the electric water suction pump is sucked into the impeller from the water inlet and is discharged to the outside through the water outlet groove, the water outlet hole and the water outlet pipe in sequence under the action of centrifugal force of the impeller for a user to use, and the water suction work of the water suction pump can be realized only by providing 12V voltage for the motor; in addition, by arranging the annular step position, the inner diameter of the water discharging hole is the same as that of the water discharging pipe, the inner diameter of the annular step position is the same as that of the water discharging pipe, the water discharging pipe is connected with the annular step position in an abutting limiting mode, and the water discharging pipe and the water discharging hole are arranged coaxially, so that the flow and the flow speed of water flow cannot change at the connecting position of the water outlet and the water discharging pipe, and the requirements of users on stable lift and flow can be met;

(2) the end seal for reducing water flowing out from the axis of the impeller is arranged at the axis of the impeller, the water flowing into the motor shaft from the axis of the impeller is reduced, the damage probability of a motor bearing is reduced, and the water entering and damaging of a waterproof water seal are reduced;

(3) the front end cover is designed to be an inner pipe joint from an outer pipe joint, so that the machine is more stable in operation, vibration is reduced, consumables and complexity in sealing multiple positions of the connecting pipe are reduced, and the possibility of air leakage caused by vibration generated in the operation of pump water is reduced;

(4) the easily-detachable screws are added, so that the problem that the functions of the parts are influenced due to part deformation caused by part knocking when the machine needs to maintain and replace a quick-wear part can be avoided.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the front end cap of the present invention;

FIG. 4 is a schematic structural view of the housing;

FIG. 5 is a schematic structural view of the rear end cap;

fig. 6 is a schematic structural view of the impeller.

Wherein: 1. a connecting port; 2. a front end cover; 3. a housing; 4. a drain hole; 5. disassembling the hole; 6. a motor; 7. connecting holes; 8. a screw; 9. an output shaft; 10. a wear resistant pad; 11. a rear end cap; 12. mounting a through hole; 13. a water outlet groove; 14. an impeller; 141. a blade; 142. mounting a plate; 143. an impeller connecting shaft; 15. and (7) end sealing.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

3. Referring to fig. 1-6, an electric water pump provided by the present invention includes a motor, a casing, an impeller, a front end cover, a rear end cover, and a water outlet pipe, wherein the casing is rectangular plate-shaped, the front end cover and the rear end cover are respectively circular plate-shaped, a mounting through hole for mounting the impeller is provided in the middle of an end surface of the casing, connection holes are distributed in an array manner on a plane of an outer circumference of the mounting through hole, an arc water outlet groove is provided on an inner wall of the mounting through hole, a water discharge hole extending to the water outlet groove and communicating with the water outlet groove is provided on an outer wall of the casing, an inner diameter of the water discharge hole is the same as an inner diameter of the water outlet pipe, an annular step provided in an annular direction is provided at an end of the water discharge hole, threads for connecting with an external output pipe are provided on an inner side wall of the annular step, and an inner diameter of the annular step is the same as an outer diameter of the water outlet pipe, the outlet pipe butt limit connect in annular step position department and outlet pipe with the wash port coaxial arrangement, front end housing and rear end cap respectively with the both ends sealing connection of installation through-hole, the impeller with the installation through-hole coaxial arrangement is installed in the installation through-hole, the motor install in on the rear end cap and the output shaft of motor with the installation through-hole coaxial arrangement, wherein:

In this embodiment, be equipped with the aligned connecting hole 7 in a plurality of positions respectively on the terminal surface of casing 3, front end housing 2 and rear end housing 11 and through wearing to locate screw rod 8 in the connecting hole 7 is connected, be equipped with dismounting hole 5 on the rear end housing 11, preferably, the quantity of connecting hole 7 on the front end housing 2 is 3 ~ 6,6 connecting hole 7 along annular array arrange in on the front end housing 2, rear end housing 11 is equipped with two dismounting hole, so, can be convenient for the dismantlement maintenance of electronic suction pump.

In this embodiment, the connection port is disposed on a side wall of the front end cover.

Further, the impeller 14 includes two

mounting plates

142 and 4 blades 141 which are respectively in a circular plate shape, the two mounting plates 142 are oppositely arranged and have aligned outer edges, the 4 blades 141 are respectively arranged between the two mounting plates 142 in an annular array and are respectively fixedly connected with the two mounting plates 142, an impeller connecting shaft 143 which extends outwards and is used for being connected with the output shaft 9 of the motor 6 is arranged at an axis of the outer surface of one mounting plate 142, the blades 141 are in a circular arc plate shape, and the arc radius of each blade 141 is 18mm-28mm, so that the centrifugal force of water pumped out by the impeller 14 can be improved, and further the lift of water flow is improved; the impeller connecting shaft 143 is provided with two screw holes, two of which are 90 ° and perpendicular to the impeller connecting shaft 143.

In this embodiment, the output shaft 9 of the motor 6 is inserted into the impeller connecting shaft 143, an end of the impeller connecting shaft 143 abuts against an end surface of the rear end cover 11 through a wear-resistant water retaining gasket, a through hole through which the output shaft 9 of the motor 6 can pass is formed in an axis of the rear end cover 11, a connecting hole for connecting with the output shaft is formed in an axis of the impeller connecting shaft 143, the output shaft is inserted into the connecting hole, the impeller connecting shaft 143 is inserted into the through hole, and a hollow cylindrical sealing sleeve is arranged between an outer wall of the impeller connecting shaft 143 and an inner wall of the through hole, so that stability of connection between the output shaft 9 and the impeller connecting shaft 143 can be ensured. In addition, be equipped with between impeller connecting axle 143 with the rear end cover 11 and be used for with the through-hole for installation through-hole 12 separates and wear-resisting gasket 10 of manger plate, wear-resisting gasket 10's cross-section is the annular, output shaft 9 passes gasket 10 with impeller connecting axle 143 is connected, preferably, in this embodiment, gasket 10 adopts wear-resisting waterproof shock attenuation piece, and like this, can prevent that the water in the installation through-hole 12 from leaking from the through-hole, guarantees the effect that electronic suction pump drew water.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An electric water pump is characterized by comprising a motor, a shell, an impeller, a front end cover, a rear end cover and a water outlet pipe, wherein the shell is in a rectangular plate shape, the front end cover and the rear end cover are respectively in a circular plate shape, an installation through hole for installing the impeller is formed in the middle of the end face of the shell, connecting holes distributed in an array mode are formed in the plane of the outer circumference of the installation through hole, an arc-shaped water outlet groove is formed in the inner wall of the installation through hole, a water discharging hole extending towards the water outlet groove and communicated with the water outlet groove is formed in the outer wall of the shell, the inner diameter of the water discharging hole is the same as the inner diameter of the water outlet pipe, an annular step position arranged along the annular direction is formed in one end, located on the outer side, of the inner side wall of the annular step position is provided with threads used for being connected with an external output pipe, and the inner diameter of the annular step position is the same as the outer diameter of the water outlet pipe, the outlet pipe butt limit connect in annular step position department and outlet pipe with the wash port coaxial arrangement, front end housing and rear end cap respectively with the both ends sealing connection of installation through-hole, the impeller with the installation through-hole coaxial arrangement is installed in the installation through-hole, the motor install in on the rear end cap and the output shaft of motor with the installation through-hole coaxial arrangement, wherein:

2. The electric water pump according to claim 1, wherein the housing, the front cover and the rear cover are respectively provided with a plurality of connection holes aligned in position and connected by screws inserted into the connection holes, and the rear cover is provided with a removal hole.

3. The motorized suction pump of claim 1, wherein the connection port is disposed on a side wall of the front end cap.

4. The electric water pump according to claim 1, wherein the impeller comprises two mounting plates and 4 blades, wherein the two mounting plates are respectively in a circular plate shape, the two mounting plates are oppositely arranged, the outer edges of the two mounting plates are aligned, the 4 blades are respectively arranged between the two mounting plates in an annular array and are respectively fixedly connected with the two mounting plates, and an impeller connecting shaft extending outwards and used for being connected with the output shaft of the motor is arranged on the axis of the outer surface of one mounting plate; the impeller connecting shaft is provided with two screw holes, wherein the screw holes are 90 degrees and are perpendicular to the impeller connecting shaft respectively.

5. The electric water pump according to claim 4, wherein the output shaft of the motor is inserted into the impeller connecting shaft, the end of the impeller connecting shaft abuts against the end surface of the rear end cover through a wear-resistant gasket, the gasket has an annular cross section, and the output shaft penetrates through the gasket and is connected with the impeller connecting shaft.

6. The electric water pump according to claim 2, wherein the number of the connecting holes on the front end cover is 3-6, 6 connecting holes are arranged on the front end cover along an annular array, and two dismounting holes are arranged on the rear end cover.

7. The motorized water pump of claim 1, wherein the impeller has an outer diameter less than an inner diameter of the mounting through-hole.

8. The electric suction pump of claim 4, wherein the vane is in the shape of a circular arc plate.

9. The electric suction pump of claim 8, wherein the radius of curvature of the blades is 18mm-28 mm.