CN215927792U - Combined type self-priming centrifugal water pump - Google Patents
Combined type self-priming centrifugal water pump Download PDFInfo
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- CN215927792U CN215927792U CN202122584033.3U CN202122584033U CN215927792U CN 215927792 U CN215927792 U CN 215927792U CN 202122584033 U CN202122584033 U CN 202122584033U CN 215927792 U CN215927792 U CN 215927792U
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Abstract
The embodiment of the utility model discloses a composite self-priming centrifugal water pump which comprises a first pump body, a first impeller, a pump cover, a second impeller, a second pump body, a main shaft and a motor, wherein the pump cover and the first pump body are installed in a matched mode, a centrifugal cavity is formed in the first pump body, the first impeller is arranged in the centrifugal cavity, the pump cover and the second pump body are installed in a matched mode, a self-priming cavity is formed inside the pump cover, a water inlet hole and a water outlet hole which are communicated with the self-priming cavity are formed in the right side surface of the pump cover, a second water inlet and a second water outlet are respectively formed in the second pump body, a channel which is communicated with the water inlet and the water outlet is formed in the second pump body, the second impeller is arranged in the self-priming cavity, one end of the main shaft is connected to the motor, and the other end of the main shaft is linked with the first impeller and the second impeller. The pump cover, the second impeller and the second pump body are combined to form a self-suction function on the basis of the centrifugal function of the water pump, so that the defect of single function of the water pump is effectively overcome, the use cost is reduced, and the management is convenient.
Description
Technical Field
The embodiment of the utility model relates to the technical field of water pumps, in particular to a combined type self-priming centrifugal water pump.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal.
Most of the existing water pumps are centrifugal pumps, the principle is that before the water pump is started, the pump and a water inlet pipe are filled with water, after the water pump is operated, water in an impeller flow channel is thrown to the periphery under the action of centrifugal force generated by high-speed rotation of an impeller, the water is pressed into a volute, a vacuum is formed at an impeller inlet, the water in a water tank is sucked into and supplemented with the space along a water suction pipe under the external atmospheric pressure, and then the sucked water is thrown out by the impeller and enters a water outlet pipe through the volute.
However, the water pump only has a centrifugal function and is single in function, a user still needs to use other pumps to solve the drainage problem, energy is wasted, cost is increased, and management is not facilitated.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a composite self-priming centrifugal water pump, which aims to solve the problem of single action caused by the fact that the water pump only has one centrifugal function in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
according to the embodiment of the utility model, a composite self-priming centrifugal water pump is provided, which comprises a first pump body, a first impeller, a pump cover, a second impeller, a second pump body, a main shaft and a motor, wherein the first pump body, the pump cover, the second pump body and the motor are sequentially arranged from left to right;
the pump cover and the first pump body are installed in a matched mode, a closed centrifugal cavity is formed inside the first pump body, a first water inlet communicated with the centrifugal cavity is formed in the left side face of the first pump body, a first water outlet communicated with the centrifugal cavity is formed in the top of the first pump body, and the first impeller is arranged in the centrifugal cavity;
the pump cover and the second pump body are installed in a matched mode, a closed self-suction cavity is formed inside the pump cover, a water inlet hole and a water outlet hole which are communicated with the self-suction cavity are formed in the right side face of the pump cover respectively, a second water inlet and a second water outlet are formed in the top of the second pump body respectively, a water inlet channel communicated with the second water inlet and the water inlet hole and a water outlet channel communicated with the second water outlet and the water outlet hole are formed inside the second pump body, and the second impeller is arranged in the self-suction cavity;
one end of the main shaft is connected to the output end of the motor, and the other end of the main shaft sequentially penetrates through the second pump body and the pump cover and is arranged in the first pump body, so that the first impeller and the second impeller are both sleeved on the shaft lever of the main shaft.
Further, the middle parts of the first impeller, the pump cover, the second impeller and the second pump body are provided with shaft holes for the main shaft to pass through, wherein the shaft holes of the pump cover and the second pump body are connected with a shaft rod of the main shaft through bearings, and the shaft holes of the first impeller and the second impeller are matched with the shaft rod of the main shaft.
Further, the second impeller includes external wheel frame and a plurality of wheel vane, the external wheel frame is the loop configuration, the shaft hole of second impeller is the loop configuration that is located external wheel frame middle part, the one end rigid coupling of wheel vane is on the lateral wall in shaft hole, and the other end rigid coupling makes two adjacent wheel vanes be the angle setting on the side of external wheel frame, and wherein, a plurality of wheel vane is the equidistance along the circumferencial direction of external wheel frame and distributes.
Furthermore, the shaft holes of the pump cover and the second pump body are respectively embedded with a sealing ring.
The pump cover comprises a first half cover and a second half cover which are arranged in a split mode, the first half cover is of a cylindrical structure with an open right side face, an annular protruding portion is formed on the inner side wall of the first half cover, the second half cover is of a cylindrical structure with an open left side face, a flange portion extending towards the left side and horizontally abutting against the protruding portion in the first half cover is formed on the inner side wall of the second half cover, and the first half cover and the second half cover form a sealed split structure.
Further, the right side surface of the first pump body is provided with an opening, and the left side surface of the first half cover covers the right opening of the first pump body.
Furthermore, a first locking ring is arranged on the outer side wall of the first pump body, a second locking ring is arranged on the outer side wall of the second pump body, a long bolt is additionally arranged to sequentially penetrate through the first locking ring and the second locking ring, and a locking nut is connected to the penetrating end of the long bolt in a threaded mode.
Furthermore, the water inlet hole and the water outlet hole on the pump cover are symmetrically arranged along the central axis of the pump cover.
Furthermore, a threaded hole is formed in the end face, away from the motor, of the end portion of the spindle, and a locking bolt is connected to the threaded hole in a threaded manner.
The embodiment of the utility model has the following advantages: on the basis of the centrifugal function of the conventional water pump, the self-suction function formed by the structural combination of the pump cover, the second impeller, the second pump body and the like is added, so that the defect of single function of the water pump can be effectively overcome, the use cost is reduced, and the management is convenient.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Fig. 1 is a schematic overall structure diagram of a composite self-priming centrifugal water pump according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a second pump body of the composite self-priming centrifugal water pump according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a second impeller of the composite self-priming centrifugal water pump according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a pump cover structure of a composite self-priming centrifugal water pump according to an embodiment of the present invention.
In the figure: 1. a first pump body; 2. a first impeller; 3. a pump cover; 4. a second impeller; 5. a second pump body; 6. a main shaft; 7. a motor; 8. a first water inlet; 9. a first water outlet; 10. a water inlet hole; 11. a water outlet hole; 12. a second water inlet; 13. a second water outlet; 14. a water inlet channel; 15. a water outlet channel; 16. an outer wheel frame; 17. a blade; 18. a first half cover; 19. a second half cover; 20. a boss portion; 21. a flange portion; 22. locking the bolt; 23. a first locking ring; 24. a second locking ring; 25. a long bolt; 26. and locking the nut.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a composite self-priming centrifugal water pump, including a first pump body 1, a first impeller 2, a pump cover 3, a second impeller 4, a second pump body 5, a spindle 6, and a motor 7, where the first pump body 1, the pump cover 3, the second pump body 5, and the motor 7 are sequentially arranged from left to right. The pump cover 3 is installed in a matching manner with the first pump body 1, so that a closed centrifugal chamber is formed inside the first pump body. A first water inlet 8 communicated with the centrifugal chamber is formed in the left side face of the first pump body 1, and a first water outlet 9 communicated with the centrifugal chamber is formed in the top of the first pump body 1. The first impeller 2 is arranged in the centrifugal chamber.
The pump cover 3 is installed in a matching manner with the second pump body 5, a closed self-suction cavity is formed inside the pump cover 3, and a water inlet hole 10 and a water outlet hole 11 which are communicated with the self-suction cavity are respectively formed in the right side surface of the pump cover 3. The top of the second pump body 5 is provided with a second water inlet 12 and a second water outlet 13 respectively, and a water inlet channel 14 communicating the second water inlet 12 with the water inlet hole 10 and a water outlet channel 15 communicating the second water outlet 13 with the water outlet hole 11 are formed inside the second pump body 5. The second impeller 4 is disposed within the self-suction chamber.
One end of the main shaft 6 is connected to the output end of the motor 7, and the other end of the main shaft sequentially penetrates through the second pump body 5 and the pump cover 3 and is arranged in the first pump body 1, so that the first impeller 2 and the second impeller 4 are both sleeved on a shaft rod of the main shaft 6. And a threaded hole is formed in the end face of the end part of the main shaft 6 far away from the motor 7, and a locking bolt 22 is connected with the threaded hole in a threaded manner.
Based on the structure, the first pump body 1, the pump cover 3 and the second pump body 5 are integrally arranged, the centrifugal cavity and the self-suction cavity are filled with liquid before the motor 7 is started, and after the motor 7 is operated, the first impeller 2 and the second impeller 4 are synchronously driven to rotate at high speed through the main shaft 6, so that on one hand, the liquid in an impeller flow passage is thrown to the periphery in the centrifugal cavity under the action of centrifugal force generated by the first impeller 2 and is pressed into a water outlet pipe connected with the first water outlet 9; on the other hand, in the self-suction chamber, under the action of the second impeller 4, the liquid in the impeller channel is thrown to and pressed into the second water outlet 13, at this time, vacuum is formed in the water inlet channel 14, the external liquid is sucked into the self-suction chamber along the second water inlet 12 under the external atmospheric pressure, and then the sucked liquid is thrown out by the impeller along the water outlet channel 15 and enters the second water outlet 13.
Further, shaft holes for the main shaft 6 to pass through are formed in the middle of the first impeller 2, the pump cover 3, the second impeller 4 and the second pump body 5. Wherein, the shaft hole of pump cover 3 and second pump body 5 all is connected with the axostylus axostyle of main shaft 6 through the bearing, and the shaft hole of first impeller 2 and second impeller 4 is the cooperation setting with the axostylus axostyle of main shaft 6. Preferably, the pump cover 3 and the shaft hole of the second pump body 5 are respectively embedded with a sealing ring to achieve a sealing effect, and the sealing ring is installed in a manner that a person skilled in the art is familiar with the technical means for assembling conventional mechanical parts under the structure of the present application.
Further, as shown in connection with fig. 3, the second impeller 4 includes an outer wheel frame 16 and a plurality of vanes 17. The outer wheel frame 16 is an annular structure, the shaft hole of the second impeller 4 is an annular structure located in the middle of the outer wheel frame 16, one end of each impeller 17 is fixedly connected to the outer side wall of the shaft hole, the other end of each impeller 17 is fixedly connected to the side face of the outer wheel frame 16, and two adjacent impeller 17 are arranged in an angle mode. Wherein, a plurality of vanes 17 are distributed at equal intervals along the circumferential direction of the outer wheel frame 16. Through the arrangement of the structure, the output liquid can be changed from the previous radial direction to the axial direction, so that the liquid in the self-suction chamber can be output to the water outlet channel 15 in the second pump body 5 along the water outlet hole 11 on the pump cover 3.
Further, as shown in fig. 4, the pump cover 3 includes a first cover half 18 and a second cover half 19 that are separately provided. The first half cover 18 has a cylindrical structure with an open right side, and an annular protrusion 20 is formed on the inner side wall of the first half cover 18. The second half cover 19 is a cylindrical structure with an open left side, and a flange portion 21 which extends to the left side and horizontally abuts against the boss portion 20 in the first half cover 18 is formed on the inner side wall of the second half cover 19, so that the first half cover 18 and the second half cover 19 form a sealed split structure. Wherein, inlet opening 10 and apopore 11 are all seted up on the right flank of the half lid 19 of second, and inlet opening 10 and apopore 11 are the symmetry setting along the central axis of the half lid 19 of second. In addition, the right side surface of the first pump body 1 is provided with an opening, and the left side surface of the first half cover 18 covers the right side opening of the first pump body 1. Based on the structural arrangement, a first locking ring 23 is arranged on the outer side wall of the first pump body 1, a second locking ring 24 is arranged on the outer side wall of the second pump body 5, a long bolt 25 is additionally arranged to sequentially penetrate through the first locking ring 23 and the second locking ring 24, and a locking nut 26 is in threaded connection with the penetrating end of the long bolt 25, so that the pump cover 3 is clamped and sealed between the first pump body 1 and the second pump body 5 through locking between the first pump body 1 and the second pump body 5, and the composite self-priming centrifugal water pump of the embodiment is formed.
Preferably, a columnar support portion is integrally formed at the middle portion of the left side surface of the second half cover 19, and the water inlet hole 10 and the water outlet hole 11 axially penetrate through the support portion, so that the second impeller 4 is supported away from the left side surface of the second half cover 19 by the support portion, thereby facilitating the normal rotation of the second impeller 4.
The embodiment of the utility model adds the self-priming pump function consisting of the pump cover 3, the second impeller 4 and the second pump body 5 on the basis of the centrifugal function of the traditional water pump, and utilizes the integrated arrangement of the first pump body 1, the pump cover 3 and the second pump body 5, so that the defect of single function of the water pump can be effectively overcome, the use cost is reduced, and the management is convenient.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (9)
1. A kind of combined type is from the suction centrifugal water pump, characterized by: the composite self-priming centrifugal water pump comprises a first pump body, a first impeller, a pump cover, a second impeller, a second pump body, a main shaft and a motor, wherein the first pump body, the pump cover, the second pump body and the motor are sequentially arranged from left to right;
the pump cover and the first pump body are installed in a matched mode, a closed centrifugal cavity is formed inside the first pump body, a first water inlet communicated with the centrifugal cavity is formed in the left side face of the first pump body, a first water outlet communicated with the centrifugal cavity is formed in the first pump body, and the first impeller is arranged in the centrifugal cavity;
the pump cover and the second pump body are installed in a matched mode, a closed self-suction cavity is formed inside the pump cover, a water inlet hole and a water outlet hole which are communicated with the self-suction cavity are formed in the right side face of the pump cover respectively, a second water inlet and a second water outlet are formed in the top of the second pump body respectively, a water inlet channel communicated with the second water inlet and the water inlet hole and a water outlet channel communicated with the second water outlet and the water outlet hole are formed inside the second pump body, and the second impeller is arranged in the self-suction cavity;
one end of the main shaft is connected to the output end of the motor, and the other end of the main shaft sequentially penetrates through the second pump body and the pump cover and is arranged in the first pump body, so that the first impeller and the second impeller are both sleeved on the shaft lever of the main shaft.
2. The composite self-priming centrifugal water pump according to claim 1, characterized in that: the middle parts of the first impeller, the pump cover, the second impeller and the second pump body are all provided with shaft holes for the main shaft to pass through, wherein the shaft holes of the pump cover and the second pump body are connected with a shaft rod of the main shaft through bearings, and the shaft holes of the first impeller and the second impeller are matched with the shaft rod of the main shaft.
3. The composite self-priming centrifugal water pump according to claim 2, characterized in that: the second impeller includes external wheel frame and a plurality of wheel leaf, the external wheel frame is the loop configuration, the shaft hole of second impeller is the loop configuration who is located external wheel frame middle part, the one end rigid coupling of wheel leaf is on the lateral wall in this shaft hole, and other end rigid coupling makes two adjacent wheel leaves be the angle setting on the side of external wheel frame, and wherein, a plurality of wheel leaf is the equidistance along the circumferencial direction of external wheel frame and distributes.
4. The composite self-priming centrifugal water pump according to claim 2, characterized in that: and the shaft holes of the pump cover and the second pump body are respectively embedded with a sealing ring.
5. The composite self-priming centrifugal water pump according to claim 1, characterized in that: the pump cover comprises a first half cover and a second half cover which are arranged in a split mode, the first half cover is of a cylindrical structure with an open right side face, an annular protruding portion is formed on the inner side wall of the first half cover, the second half cover is of a cylindrical structure with an open left side face, the second half cover extends towards the left side and is formed on the inner side wall of the second half cover, and a flange portion which abuts against the protruding portion horizontally in the first half cover enables the first half cover and the second half cover to form a sealed split structure.
6. The composite self-priming centrifugal water pump according to claim 5, wherein: the right side face of the first pump body is provided with an opening, and the left side face of the first half cover covers the right side opening of the first pump body.
7. The composite self-priming centrifugal water pump according to claim 1, characterized in that: the outer side wall of the first pump body is provided with a first locking ring, the outer side wall of the second pump body is provided with a second locking ring, a long bolt is additionally arranged to sequentially penetrate through the first locking ring and the second locking ring, and a locking nut is connected to the penetrating end of the long bolt in a threaded mode.
8. The composite self-priming centrifugal water pump according to claim 1, characterized in that: the water inlet hole and the water outlet hole on the pump cover are symmetrically arranged along the central axis of the pump cover.
9. The composite self-priming centrifugal water pump according to claim 1, characterized in that: and a threaded hole is formed in the end face of the end part of the main shaft, which is far away from the motor, and a locking bolt is connected in the threaded hole in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122584033.3U CN215927792U (en) | 2021-10-26 | 2021-10-26 | Combined type self-priming centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122584033.3U CN215927792U (en) | 2021-10-26 | 2021-10-26 | Combined type self-priming centrifugal water pump |
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| Publication Number | Publication Date |
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| CN215927792U true CN215927792U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122584033.3U Active CN215927792U (en) | 2021-10-26 | 2021-10-26 | Combined type self-priming centrifugal water pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576082A (en) * | 2023-07-14 | 2023-08-11 | 威晟汽车科技(宁波)有限公司 | Pump device |
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2021
- 2021-10-26 CN CN202122584033.3U patent/CN215927792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576082A (en) * | 2023-07-14 | 2023-08-11 | 威晟汽车科技(宁波)有限公司 | Pump device |
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