CN217633107U

CN217633107U - Water pump head end cover

Info

Publication number: CN217633107U
Application number: CN202123371850.7U
Authority: CN
Inventors: 刘邦平
Original assignee: Kunshan Kunlijie Environmental Protection Technology Co ltd
Current assignee: Kunshan Kunlijie Environmental Protection Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-10-21
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a water pump head end cover, include: the pump head body comprises a pump head shell, a working chamber is arranged in the pump head shell, an impeller is arranged in the working chamber, and a first supporting plate and a second supporting plate which extend along the radial direction are oppositely arranged on the inner wall of the working chamber; the impeller is lower than the first support plate and the second support plate, and the outer diameter of the impeller is smaller than the outer diameter of a circle formed by the first support plate and the second support plate in a surrounding manner; the end cover can cover the end face of the pump head body, the bottom of the end cover is provided with a protruding part, and the protruding part is embedded in the working chamber and located on the first supporting plate and the second supporting plate so as to seal the working chamber and the impeller. The bottom through with the end cover is equipped with the bulge for the end cover can cover the terminal surface of impeller, prevents that water from returning from one side of impeller and making the impeller damage in flowing into the impeller, has improved the leakproofness and the life of impeller, has reduced use cost and maintenance cost, and has increased the lift and the discharge capacity of water pump.

Description

Water pump head end cover

Technical Field

The utility model relates to a water pump end cover technical field, specific is a water pump head end cover.

Background

The internal structure of the water pump is complex, and the impeller, the lubricating sealing structure and the like are respectively arranged in the water pump, so that an end cover needs to be arranged on the water pump to seal the internal structure. The end cover in the prior art is almost a plane and is directly covered on the end surface of the water pump to play a role in sealing. However, the distance between the bottom of the end cover and the impeller is about 1cm, and when the water pump works at an overlarge distance, moisture can flow into the surface and the inside of the impeller from the gap and cannot play a waterproof role on the impeller, so that the impeller is damaged due to being soaked in water for a long time, the service life of the impeller is greatly shortened, the use cost and the maintenance cost are increased, and the lift and the discharge capacity of the water pump are reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the prior art, the embodiment of the utility model provides a water pump head end cover, it is used for solving the interior problem of intaking and fragile of impeller.

The embodiment of the application discloses water pump head end cover is equipped with the bulge through the bottom with the end cover for the end cover is except can covering the working chamber of water pump outside, and the bulge inlays to be established in the working chamber, in order to cover the terminal surface of impeller, thereby prevent that water from returning from one side of impeller and make the impeller damage in flowing in the impeller, avoided impeller and water contact, improved the leakproofness of impeller, and then improved the life of impeller, reduced use cost and maintenance cost, and increased the lift and the discharge capacity of water pump.

The end cover of the pump head of the water pump is used for covering the end face of the pump head, the pump head comprises a pump head shell with a working chamber inside, an impeller is arranged in the working chamber, and two first supporting plates and two second supporting plates which extend along the radial direction are oppositely arranged on the inner wall of the working chamber;

the impeller is lower than the first support plate and the second support plate, and the outer diameter of the impeller is smaller than the outer diameter of a circle formed by the first support plate and the second support plate in a surrounding manner;

the bottom of end cover is equipped with the bulge, the bulge can inlay to be established in the working chamber and through first backup pad with the second backup pad supports, in order to incite somebody to action the working chamber reaches impeller seal.

Further, an impeller shaft is fixedly arranged in the pump head shell along the axis direction.

Furthermore, a shaft hole is formed in the middle of the impeller along the axial direction, and the impeller is sleeved on the impeller shaft through the shaft hole.

Furthermore, the end face of the first supporting plate and the end face of the second supporting plate are located on the same horizontal plane.

Further, the distance between the bottom of the protruding part and the end face of the impeller along the axial direction is 4-5 mm.

Further, the bottom of the end cover is provided with an annular groove, so that the end cover can be better covered on the pump head housing.

Furthermore, the sealing device also comprises a sealing gasket embedded in the annular groove, and the sealing gasket can be made of rubber so as to improve the sealing property and the water resistance of the end cover.

Further, the outer diameter of the protruding part is larger than the outer diameter of a circle formed by the first supporting plate and the second supporting plate.

Furthermore, the middle part of the end cover is provided with a through hole.

Further, the distance between the bottom of the impeller and the bottom of the chamber is 1 mm-1.5 mm, so that the impeller does not interfere during rotation.

The beneficial effects of the utility model are as follows:

1. be equipped with the bulge through the bottom with the end cover for the end cover except can cover the working chamber of water pump, the bulge inlays to be established in the working chamber, in order to cover the terminal surface of impeller, thereby prevent that water from returning from one side of impeller and make the impeller damage in flowing into the impeller, avoided impeller and water contact, improved the leakproofness of impeller, and then improved the life of impeller, reduced use cost and maintenance cost, and increased the lift and the discharge capacity of water pump.

2. The bottom of the protruding part and the end face of the impeller are spaced by an axial distance of 4-5 mm, so that the end cover is prevented from interfering the impeller and affecting the rotation of the impeller.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a pump head body with a half of the pump head housing removed according to an embodiment of the present invention.

Reference numerals of the above figures: 10. a pump head body; 11. a pump head housing; 12. a working chamber; 13. a first support plate; 14. a second support plate; 20. an impeller; 21. a shaft hole; 30. an end cap; 31. a projection; 32. a through hole; 40. an impeller shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "bottom", "inner", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to 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", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature.

The application water pump head end cover be equipped with the bulge through the bottom with the end cover for the end cover except can cover the working chamber of water pump outside, the bulge inlays and establishes in the working chamber, in order to cover the terminal surface of impeller, thereby prevent that water from returning from one side of impeller and make the impeller damage in the inflow impeller, avoided impeller and water contact, improved the leakproofness of impeller, and then improved the life of impeller, reduced use cost and maintenance cost, and increased the lift and the discharge capacity of water pump.

The present invention will be described in detail with reference to fig. 1 and the embodiments.

The end cover of the water pump head of this embodiment is used for covering the end face of the pump head 10, the pump head 10 includes a pump head housing 11 having a working chamber therein, an impeller 20 is disposed in the working chamber 12, and two first support plates 13 and second support plates 14 extending in the radial direction are disposed on the inner wall of the working chamber 12 oppositely;

wherein, the height of the impeller 20 is lower than the height of the first support plate 13 and the second support plate 14, and the outer diameter of the impeller 20 is smaller than the outer diameter of a circle formed by the first support plate 13 and the second support plate 14;

the bottom of the end cover 30 is provided with a protrusion 31, and the protrusion 31 can be embedded in the working chamber 12 and supported by the first support plate 13 and the second support plate 14, so as to seal the working chamber 12 and the impeller 20.

Specifically, in this embodiment, the water pump head end cover 30 is used to cover the end face of the pump head 10. The pump head 10 comprises a pump head housing 11 having a working chamber therein. The pump head housing 11 may be cylindrical in shape. A rotatable impeller 20 is provided within the working chamber 12. The inner wall of the working chamber 12 is provided with two first support plates 13 and a second support plate 14 extending in the radial direction in an opposite manner. The first support plate 13 corresponds to the second support plate 14 in thickness. The height of the impeller 20 is lower than the heights of the first support plate 13 and the second support plate 14, so that the end cover 30 can be supported by the first support plate 13 and the second support plate 14, and the end cover 30 is prevented from being in direct contact with the impeller 20 to affect the normal operation of the impeller 20. The outer diameter of the impeller 20 is smaller than the outer diameter of the circle formed by the first support plate 13 and the second support plate 14, so that the impeller 20 can be normally installed on the end surface of the bottom of the working chamber 12 from above the working chamber 12. The end cap 30 can cover the end face of the pump head 10. The bottom of the end cap 30 is provided with a protrusion 31. The outer diameter of the protruding portion 31 is smaller than the outer diameter of the working chamber 12 and larger than the outer diameter of the circle surrounded by the first support plate 13 and the second support plate 14. The protrusion 31 is embedded in the working chamber 12 and located on the first support plate 13 and the second support plate 14 to seal the working chamber 12 and the impeller 20.

Specifically, in the present embodiment, an impeller shaft 40 is fixedly disposed in the pump head housing 11 along the axial direction. The middle part of the impeller 20 is provided with a shaft hole 21 along the axial direction. The impeller 20 is sleeved on the impeller shaft 40 through the shaft hole 21 to perform a rotary motion relative to the impeller shaft 40.

Specifically, in this embodiment, the end surface of the first supporting plate 13 and the end surface of the second supporting plate 14 are located at the same horizontal plane, so that the end cap 30 supported by the end cap can be placed horizontally, and the sealing performance of the end cap is further improved.

Specifically, in this embodiment, the distance between the bottom of the protruding portion 31 and the end surface of the impeller 20 along the axial direction is 4mm to 5mm, so as to prevent the protruding portion 31 from interfering with the impeller 20 and affecting the normal rotation thereof.

Specifically, in this embodiment, the bottom of the end cap 30 is provided with an annular groove. The annular groove enables the end cap 30 to better fit the working chamber 12 so that it better covers the pump head housing 11. And a sealing gasket is embedded in the annular groove. The gasket may be made of rubber to improve the sealing property and waterproof property of the end cap 30.

Specifically, in this embodiment, the outer diameter of the protruding portion 31 is larger than the outer diameter of the circle surrounded by the first support plate 13 and the second support plate 14, so that the first support plate 13 and the second support plate 14 can support the end cover 30, and the influence of the direct contact between the end cover 30 and the impeller 20 on the normal operation of the impeller 20 is avoided.

Specifically, in this embodiment, a through hole 32 is formed in a middle portion of the end cover 30, so that the middle portion of the impeller 20 is exposed and connected to an external mechanism.

Specifically, in the present embodiment, the distance between the bottom of the impeller 20 and the bottom of the chamber is 1mm to 1.5mm, so that the impeller 20 does not interfere with each other when rotating.

The utility model adopts the concrete embodiment to explain the principle and the implementation mode of the utility model, and the explanation of the embodiment is only used to help understand the technical proposal and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A water pump head end cover is used for covering the end face of a pump head, the pump head comprises a pump head shell with a working chamber inside, and is characterized in that an impeller is arranged in the working chamber, and two first supporting plates and two second supporting plates which extend along the radial direction are oppositely arranged on the inner wall of the working chamber;

the bottom of end cover is equipped with the bulge, the bulge can inlay to be established in the working chamber and through first backup pad with the second backup pad supports, in order to incite somebody to action the working chamber reaches the impeller is sealed.

2. A water pump head end cap according to claim 1, wherein an impeller shaft is fixedly disposed within the pump head housing along the axis.

3. A water pump head end cover as claimed in claim 2, wherein a shaft hole is axially formed in the middle of the impeller, and the impeller is sleeved on the impeller shaft through the shaft hole.

4. A water pump head end cap according to claim 1, wherein the end face of the first support plate and the end face of the second support plate are located at the same horizontal plane.

5. A water pump head end cap according to claim 1, wherein the bottom of the projection is axially spaced from the end face of the impeller by a distance of 4mm to 5mm.

6. A water pump head end cap according to claim 1, wherein an annular groove is provided in the bottom of the end cap to enable the end cap to better fit over the pump head housing.

7. A water pump head end cap according to claim 6, further comprising a gasket embedded in the annular groove, wherein the gasket is made of rubber to improve sealing and water resistance of the end cap.

8. A water pump head end cap according to claim 1, wherein the projection has an outer diameter greater than the outer diameter of the circle bounded by the first and second support plates.

9. A water pump head end cap according to claim 1, wherein a through hole is provided in the middle of the end cap.

10. A water pump head end cap according to claim 1, wherein the distance between the bottom of the impeller and the bottom of the chamber is 1mm to 1.5mm, such that the impeller does not interfere when rotating.