CN211820080U

CN211820080U - Circulating pump head

Info

Publication number: CN211820080U
Application number: CN202020380669.9U
Authority: CN
Inventors: 於友兵; 於君涛; 陈逸洋; 於柔含; 林心雅; 郦翎丹
Original assignee: Taizhou Ann Welding Equipment Co ltd
Current assignee: Taizhou Ann Welding Equipment Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-10-30
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a circulating pump head belongs to water pump accessory technical field, including the pump head main part, the pump head main part includes pump seat and pump cover, the pump cover is installed on the pump seat and forms the impeller cavity with the pump seat cooperation, the bottom center of impeller cavity has the bellied first mount table of axial, the top center of impeller cavity has the bellied second mount table of axial, install the impeller in the impeller cavity, the impeller includes top surface and bottom surface, be equipped with conflict face on the top surface, be equipped with conflict face down on the bottom surface, it laminates mutually with the second mount table to go up conflict face, it laminates mutually with first mount table to conflict face down, it is inseparabler to have reached the cooperation between messenger's impeller and the pump head, thereby improve water pump work efficiency's effect.

Description

Circulating pump head

Technical Field

The utility model relates to a water pump accessory field especially relates to a circulating pump head.

Background

The pump head is an indispensable accessory on the circulating pump. The impeller is arranged in the pump head, the impeller is driven to rotate by the motor, so that vacuum is generated in the middle of the impeller, water flows into the vacuum, and then the water is discharged through the impeller rotating at a high speed, and a water pushing effect is achieved. The mechanical energy of the engine is directly transferred to the liquid to increase the static pressure energy and the kinetic energy of the liquid. Therefore, the close fit between the impeller and the pump head is a major factor in the efficiency of the water pump, and if the impeller and the pump head are not well designed, a loss of power and a loss of clearance occur at the blades. When the liquid is conveyed by the existing impeller, the liquid is easy to directly fly out from a gap between the blade and the pump head, so that the spatial distribution of the liquid conveyed by the impeller cannot be controlled, and the working efficiency of the water pump is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, solve the technical problem in the correlation technique to a certain extent at least, provide a circulating pump head to it is inseparabler to reach the cooperation between messenger's impeller and the pump head, thereby improves water pump work efficiency's purpose.

In order to solve the technical problem, the technical scheme of the utility model is that: a circulating pump head comprises a pump head main body, wherein the pump head main body comprises a pump seat and a pump cover, the pump cover is installed on the pump seat and matched with the pump seat to form an impeller cavity, a pump shaft hole communicated with the impeller cavity is formed in the pump seat, a first mounting platform protruding in the axial direction is arranged at the center of the bottom of the impeller cavity, a second mounting platform protruding in the axial direction is arranged at the center of the top of the impeller cavity, the first mounting platform is provided with a first extending portion connected with the inner cavity wall of the impeller cavity, the second mounting platform is provided with a second extending portion connected with the inner cavity wall of the impeller cavity, the first extending portion corresponds to the second extending portion in the vertical position, a first annular flow channel is formed between the first extending portion and the inner cavity wall of the impeller cavity in a matched mode, and a second annular flow channel is formed between the second extending portion and the inner cavity wall of the impeller cavity in a matched mode, be equipped with inlet opening and apopore on the pump seat, the inlet opening with first annular runner's one end is linked together, the apopore with first annular runner's the other end is linked together, install the impeller in the impeller cavity, the impeller includes top surface and bottom surface, be equipped with the face of contradicting on the top surface, be equipped with down the face of contradicting on the bottom surface, go up the face of contradicting with the second mount table is laminated mutually, down the face of contradicting with first mount table is laminated mutually.

As a specific aspect of the present invention, it may be preferable that: and a partition tongue is arranged at the joint of the top of the first extension part and the inner cavity wall of the impeller cavity and is abutted against the edge of the impeller.

As a specific aspect of the present invention, it may be preferable that: the edge of impeller top surface and bottom surface all is equipped with a plurality of evenly distributed's blade, the distance between two adjacent blades is W, the width of separating the tongue is L, L's size is greater than W's twice size.

As a specific aspect of the present invention, it may be preferable that: the height of first extension with the high parallel and level of first mount table, the height of second extension with the high parallel and level of second mount table, the height of the blade on the impeller top surface with the high parallel and level of last conflict face, the height of the blade on the impeller bottom surface with the high parallel and level of conflict face down.

As a specific aspect of the present invention, it may be preferable that: the impeller is characterized in that a hub is arranged at the center of the impeller, an upward concave mounting hole is formed in the top of the impeller cavity, and the diameter of the mounting hole is larger than that of the hub.

The utility model discloses technical effect mainly embodies in following aspect: a first annular flow channel is formed between the first installation platform and the inner cavity wall of the impeller cavity in a matched mode, a second annular flow channel is formed between the second installation platform and the inner cavity wall of the impeller cavity in a matched mode, in addition, the upper contact surface is attached to the second installation platform, the lower contact surface is attached to the first installation platform, the design reduces the gap between the impeller and the impeller cavity, and it is further guaranteed that water has enough space to flow, the possibility that water directly flies out from the gap is effectively avoided, and gap loss is reduced.

Drawings

Fig. 1 is an exploded schematic view of the three-dimensional structure of the present invention;

fig. 2 is a schematic perspective view of the impeller of the present invention.

Fig. 3 is the utility model discloses a spatial structure schematic diagram of pump cover.

Reference numerals: 1. a pump mount; 2. a pump cover; 3. a pump shaft hole; 4. a first mounting table; 5. a second mounting table; 6. a first extension portion; 7. a second extension portion; 8. a first annular flow passage; 9. a second annular flow passage; 10. a water inlet hole; 11. a water outlet hole; 12. an impeller; 13. an upper contact surface; 14. a lower contact surface; 15. a tongue is separated; 16. a blade; 17. a hub; 18. and (7) installing holes.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical solutions of the present invention can be more easily understood and grasped, and cannot be construed as limiting the present invention.

Examples

A kind of circulating pump head, refer to fig. 1, fig. 2 and fig. 3, the utility model discloses a circulating pump head, including the pump head main body, the pump head main body includes pump base 1 and pump cover 2, pump base 1 and pump cover 2 can be made of copper, also can be made of aluminum, pump cover 2 is installed on pump base 1 and cooperates with pump base 1 to form the impeller cavity, pump shaft hole 3 communicated with impeller cavity is set on pump base 1, pump shaft hole 3 can be used for the output shaft of the motor to enter and install, the bottom center of the impeller cavity has axially protruding first mount table 4, the bottom of the impeller cavity is set on pump base 1, the top center of the impeller cavity has axially protruding second mount table 5, the top of the impeller cavity is set on pump cover 2, first mount table 4 has the first extension 6 connected with the inner cavity wall of the impeller cavity, second mount table 5 has the second extension 7 connected with the inner cavity wall of the impeller cavity, the first extension part 6 corresponds to the second extension part 7 in the upper and lower positions, a first annular flow channel 8 is formed between the first installation platform 4 and the inner cavity wall of the impeller cavity in a matching way, a second annular flow channel 9 is formed between the second installation platform 5 and the inner cavity wall of the impeller cavity in a matching way, a water inlet hole 10 and a water outlet hole 11 are formed in the pump seat 1, the water inlet hole 10 is communicated with one end of the first annular flow channel 8, the water outlet hole 11 is communicated with the other end of the first annular flow channel 8, water can enter the impeller cavity through the water inlet hole 10 and finally flows out of the water outlet hole 11 through the first annular flow channel 8 and the second annular flow channel 9; install impeller 12 in the impeller cavity, impeller 12 includes top surface and bottom surface, be equipped with conflict face 13 on the top surface, be equipped with conflict face 14 down on the bottom surface, it laminates mutually with second mount table 5 to go up conflict face 13, conflict face 14 laminates mutually with first mount table 4 down, this design has both reduced the clearance between impeller 12 and the impeller cavity, it has enough space to flow still to have guaranteed water, thereby effectively avoided the direct possibility of flying out from the space of water, the clearance loss has been reduced.

The top of the first extending part 6 and the connection part of the first extending part and the inner cavity wall of the impeller cavity are provided with a baffle tongue 15, and the baffle tongue 15 is abutted against the edge of the impeller 12. The design of the baffle tongue 15 reduces the moving space of the impeller 12, so that the swinging amplitude of the impeller 12 after rotation is smaller, and the impeller is more stable, and finally the purpose of improving the efficiency is achieved.

The edge of the top surface and the bottom surface of the impeller 12 is provided with a plurality of uniformly distributed blades 16, the distance between two adjacent blades 16 is W, the width of the partition tongue 15 is L, and the size of L is larger than twice of W. The design ensures that at least 2 blades 16 on the impeller 12 are in contact with the partition tongues 15 no matter how the impeller 12 rotates, and reduces the gap loss between the blades 16 and the partition tongues 15 when the impeller 12 rotates at high speed.

The height of the first extension part 6 is flush with the height of the first mounting table 4, the height of the second extension part 7 is flush with the height of the second mounting table 5, the height of the blade 16 on the top surface of the impeller 12 is flush with the height of the upper interference surface 13, and the height of the blade 16 on the bottom surface of the impeller 12 is flush with the height of the lower interference surface 14. The design enables the blades 16 on the impeller 12 to be attached to the first extension part 6 and the second extension part 7, and reduces the gap loss between the blades 16 and the first extension part 6 and the second extension part 7 when the impeller 12 rotates at a high speed.

The center of the impeller 12 is provided with a hub 17, the top of the impeller cavity is provided with an upward concave mounting hole 18, and the diameter of the mounting hole 18 is larger than that of the hub 17. After the impeller 12 is installed in the impeller cavity, the hub 17 on the impeller 12 enters the installation hole 18, and the diameter of the installation hole 18 is slightly larger than that of the hub 17, so that the impeller 12 can be kept stable when rotating at a high speed.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A circulating pump head comprises a pump head main body, wherein the pump head main body comprises a pump seat and a pump cover, the pump cover is installed on the pump seat and matched with the pump seat to form an impeller cavity, a pump shaft hole communicated with the impeller cavity is formed in the pump seat, the circulating pump head is characterized in that a first mounting platform protruding in the axial direction is arranged at the center of the bottom of the impeller cavity, a second mounting platform protruding in the axial direction is arranged at the center of the top of the impeller cavity, the first mounting platform is provided with a first extending portion connected with the inner cavity wall of the impeller cavity, the second mounting platform is provided with a second extending portion connected with the inner cavity wall of the impeller cavity, the first extending portion corresponds to the second extending portion in the vertical position, a first annular flow channel is formed between the first extending portion and the inner cavity wall of the impeller cavity in a matching mode, a second annular flow channel is formed between the second extending portion and the inner cavity wall of the impeller cavity in a matching, be equipped with inlet opening and apopore on the pump seat, the inlet opening with first annular runner's one end is linked together, the apopore with first annular runner's the other end is linked together, install the impeller in the impeller cavity, the impeller includes top surface and bottom surface, be equipped with the face of contradicting on the top surface, be equipped with down the face of contradicting on the bottom surface, go up the face of contradicting with the second mount table is laminated mutually, down the face of contradicting with first mount table is laminated mutually.

2. A circulating pump head as claimed in claim 1, wherein: and a partition tongue is arranged at the joint of the top of the first extension part and the inner cavity wall of the impeller cavity and is abutted against the edge of the impeller.

3. A circulating pump head as claimed in claim 2, wherein: the edge of impeller top surface and bottom surface all is equipped with a plurality of evenly distributed's blade, the distance between two adjacent blades is W, the width of separating the tongue is L, L's size is greater than W's twice size.

4. A circulating pump head as claimed in claim 3, wherein: the height of first extension with the high parallel and level of first mount table, the height of second extension with the high parallel and level of second mount table, the height of the blade on the impeller top surface with the high parallel and level of last conflict face, the height of the blade on the impeller bottom surface with the high parallel and level of conflict face down.

5. A circulating pump head as claimed in claim 1, wherein: the impeller is characterized in that a hub is arranged at the center of the impeller, an upward concave mounting hole is formed in the top of the impeller cavity, and the diameter of the mounting hole is larger than that of the hub.