CN210218149U - Water and land dual-purpose injection water pump - Google Patents

Abstract

The utility model belongs to the technical field of the water pump, refer in particular to an amphibious injection water pump, including the pump body that has the delivery port, be provided with the cavity that absorbs water in the pump body, be used for placing the impeller cavity of impeller, and respectively with the impeller cavity, the high pressure cavity of delivery port intercommunication, still including the pump barrel casing, form an airtight cavity between the internal face of pump barrel casing and the outer wall of the pump body, the water inlet has been seted up on the pump barrel casing, the mouth of a river has been seted up on the pump body, be provided with driving motor in the airtight cavity, driving motor's pivot extends forward and penetrates among the pump body to the impeller cavity and be connected with impeller transmission. The utility model places the driving motor in the closed cavity, and takes away the heat of the driving motor by the water flow in the closed cavity to realize cooling, thereby not influencing the cooling of the driving motor no matter the driving motor is used on land or underwater; meanwhile, the water flow in the closed cavity is fast, and the heat of the driving motor can be taken away quickly.

Description

Water and land dual-purpose injection water pump

The technical field is as follows:

the utility model belongs to the technical field of the water pump, refer in particular to an amphibious injection water pump.

Background art:

the water pump is divided into a pump for underwater use and a pump for land use, the pump for underwater use cools the water pump through water around the pump, and the pump for land use cools the water pump through air, but the pump for land use has no sealing property, so the pump for land use can not be applied underwater; the underwater pump has good sealing performance, so that heat of a water pump motor cannot be dissipated when the underwater pump is used on land, and the underwater pump cannot be used on land.

Most of the jet pumps in the existing market can only be used on land, enough water is injected into a pump body before each use, and the jet pumps cannot be directly placed into water like a submersible pump to achieve the convenience of use; meanwhile, the temperature of a motor of the high-power jet pump is increased, and the air cooling effect is difficult to meet the relevant standard requirements.

The invention content is as follows:

the utility model aims at providing a can use on land, also can use under water and the good amphibious injection water pump of cooling effect.

The utility model discloses a realize like this:

the utility model provides an amphibious injection water pump, including the pump body that has the delivery port, be provided with the cavity that absorbs water in the pump body, an impeller cavity for placing the impeller, and respectively with the impeller cavity, the high pressure cavity of delivery port intercommunication, still including the pump barrel casing that sets up on pump body rear end, form an airtight cavity between the internal face of pump barrel casing and the outer wall of the pump body, set up the water inlet with airtight cavity intercommunication on the pump barrel casing, set up the water mouth of crossing of intercommunication cavity and airtight cavity on the pump body, be provided with driving motor in the airtight cavity, driving motor's pivot extends forward and penetrates among pump body to the impeller cavity and is connected with impeller transmission.

In foretell an amphibious injection water pump, be provided with the mounting groove on the rear end face of the pump body, set up the shaft hole that is linked together with the impeller cavity on the tank bottom of mounting groove, be provided with limit structure on the inner wall of pump barrel casing, driving motor's front end supports to lean on in the mounting groove, and the rear end supports to lean on limit structure, and driving motor's pivot runs through the shaft hole and is connected with the impeller transmission.

In the amphibious injection water pump, the limiting structures are a plurality of limiting convex strips circumferentially distributed on the inner side wall of the pump cylinder shell;

or the limiting structure is a limiting convex column arranged on the inner wall of the rear end of the pump cylinder shell.

In the amphibious injection water pump, the driving motor comprises a motor shell with a front end abutting against the inside of the mounting groove and an open rear end, and a rear seat shell with an open front end and an open rear end abutting against the limiting structure, the rotating shaft is arranged on the motor shell in a penetrating manner, a motor rear cover is arranged at the opening of the motor shell in a covering manner, an annular convex edge is arranged on the outer side wall of the motor rear cover, and the front end surface of the annular convex edge abuts against the rear end surface of the motor shell; the opening border of back seat casing is sunken backward and is formed with the back constant head tank, and the opening part of establishing at the back seat casing is inserted to motor casing's rear end, and the rear end face on annular protruding border is inconsistent with the tank bottom surface of back constant head tank.

In foretell an amphibious injection water pump, the cover is equipped with the heat dissipation shell on the motor casing, and the preceding terminal surface of heat dissipation shell is inconsistent and through fastener fixed connection, the preceding terminal surface of rear end face and back seat casing is inconsistent and through fastener fixed connection with the rear end face of the pump body.

In foretell an amphibious sprays water pump, the notch border of mounting groove is sunken forward and is formed with preceding constant head tank, the front end inner edge of heat dissipation shell extends forward to form the protruding edge one of location in the preceding constant head tank, and the rear end inner edge of heat dissipation shell extends backward to form the protruding edge two of location in the back constant head tank.

In the amphibious injection water pump, a first sealing ring is arranged between the outer side wall of the motor shell and the side wall of the front positioning groove.

In the amphibious injection water pump, a second sealing ring is arranged between the outer side wall of the motor shell and the side wall of the rear positioning groove.

In the amphibious jet water pump, the driving motor further comprises a stator fixed on the inner wall of the motor shell and a rotor sleeved on the rotating shaft and matched with the stator, a water retaining front cover is sleeved on the rotating shaft between the stator and the front end wall of the motor shell, the front end face of the water retaining front cover is abutted against the motor shell, and the rear end face of the water retaining front cover is abutted against the stator; an annular groove is formed in the front end face of the water retaining front cover along the center line of the front end face, and a third sealing ring is arranged in the annular groove.

In the amphibious injection water pump, the inner cavity of the rear seat shell is provided with the motor controller, the rear end face of the pump cylinder shell is provided with the inserting through hole, the rear seat shell is provided with the inserting column inserted in the inserting through hole, and a sealing ring IV is arranged between the column wall of the inserting column and the hole wall of the inserting through hole; the plug column is provided with a wire passing hole for communicating the plug through hole with the inner cavity of the backseat shell, and the wire passing hole and the plug through hole form a wire channel for electrically connecting the motor controller with the outside.

Compared with the prior art, the utility model outstanding advantage is:

1. the driving motor is placed in the closed cavity, and the heat of the driving motor is taken away by means of the water flow in the closed cavity to realize cooling, so that the driving motor is not influenced to be cooled whether the driving motor is used on land or underwater; meanwhile, in the normal working process, the water flow in the closed cavity is fast, so that the heat of the driving motor can be taken away quickly;

2. the utility model can be directly put into water for use like a submersible pump, and sufficient water is required to be injected into the pump body and the pump barrel shell in advance only when the submersible pump is used on land, so that the submersible pump is convenient to operate and has strong applicability;

3. the utility model discloses driving motor passes through many road surface seal structure, simultaneously and with the help of the further sealing effect of sealing washer one, sealing washer two, sealing washer three and sealing washer four to make driving motor possess fabulous sealing performance.

Description of the drawings:

FIG. 1 is a perspective view of the pump body of the present invention;

FIG. 2 is a perspective view of the pump barrel housing of the present invention;

FIG. 3 is a perspective view of the pump cartridge housing of the present invention;

FIG. 4 is a cross-sectional view of the whole device of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a partial enlarged view at B in FIG. 4;

fig. 7 is a partially enlarged view at C in fig. 4.

In the figure: 1. a pump body; 2. a water outlet; 3. a water-absorbing chamber; 4. an impeller chamber; 5. an impeller; 6. a high pressure chamber; 7. a pump barrel housing; 8. closing the chamber; 9. a water inlet; 10. a water outlet; 11. a rotating shaft; 12. mounting grooves; 13. a shaft hole; 14. limiting convex strips; 15. a motor housing; 16. a rear seat housing; 17. a motor rear cover; 18. an annular convex edge; 19. a heat dissipation housing; 20. a fastener; 21. positioning the first convex edge; 22. positioning a second convex edge; 23. a first sealing ring; 24. a second sealing ring; 25. a stator; 26. a rotor; 27. a water retaining front cover; 28. a third sealing ring; 29. a motor controller; 30. inserting through holes; 31. inserting the column; 32. a fourth sealing ring; 33. a diffuser channel; 34. a nozzle channel.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 7:

the utility model provides an amphibious injection water pump, including the pump body 1 that has delivery port 2, be provided with water absorption cavity 3 in the pump body 1, an impeller cavity 4 for placing impeller 5, and respectively with impeller cavity 4, the high pressure chamber 6 of delivery port 2 intercommunication, still including setting up pump barrel casing 7 on the pump body 1 rear end, form an airtight cavity 8 between the internal face of pump barrel casing 7 and the outer wall of the pump body 1, set up the water inlet 9 with airtight cavity 8 intercommunication on the pump barrel casing 7, set up the water mouth 10 of crossing of intercommunication water absorption cavity 3 with airtight cavity 8 on the pump body 1, be provided with driving motor in the airtight cavity 8, driving motor's pivot 11 extends forward and penetrates among the pump body 1 to the impeller cavity 4 and is connected with impeller 5 transmission. The water suction cavity 3 is communicated with the impeller cavity 4 through a diffusion channel 33, the high-pressure cavity 6 is communicated with the water suction cavity 3 through a nozzle channel 34, the pump body 1 is fixedly connected with the pump cylinder shell 7 through a fastener 20, and a sealing ring is arranged between the pump body 1 and the pump cylinder shell 7.

The utility model discloses a theory of operation: in the normal use process, water flow enters the closed cavity 8 through the water inlet 9 and then enters the water suction cavity 3 through the water passing port 10, the driving motor drives the impeller 5 to rotate at a high speed to form a negative pressure area in the central area of the impeller 5, so that the water flow in the water suction cavity 3 is sucked into the impeller cavity 4 through the diffusion channel 33, is thrown out under the high-speed rotation of the impeller 5 to form high-pressure water flow and flows into the high-pressure cavity 6. Wherein a part of the high-pressure water flow flows back into the suction chamber through the nozzle passage 34 to be mixed with the low-pressure low-speed water flow in the suction chamber and is sucked into the impeller chamber 4 again through the diffuser passage 33; the other part of the high-pressure water flow is discharged through the water outlet 2.

The driving motor is placed in the closed cavity 8, and the heat of the driving motor is taken away by means of the water flow in the closed cavity 8 to realize cooling, so that the driving motor is not influenced to be cooled whether the driving motor is used on land or underwater; meanwhile, in the normal working process, the water flow in the closed cavity 8 is fast, and the heat of the driving motor can be taken away quickly.

Meanwhile, the utility model discloses can directly put into the aquatic like the immersible pump and use, only just need inject the water of capacity into the pump body 1 and pump barrel casing 7 in advance when land uses, its operation is convenient, the suitability is strong.

Further, the utility model discloses in, driving motor sets up the concrete structure that sets up in airtight cavity 8: be provided with mounting groove 12 on the rear end face of the pump body 1, set up the shaft hole 13 that is linked together with impeller cavity 4 on the tank bottom of mounting groove 12, be provided with limit structure on the inner wall of pump barrel casing 7, driving motor's front end supports to lean on in mounting groove 12, and the rear end supports to lean on limit structure, and driving motor's pivot 11 runs through shaft hole 13 and is connected with the transmission of impeller 5. The driving motor is fixedly clamped in the closed cavity 8 by virtue of the fixed connection between the pump body 1 and the pump barrel shell 7, so that the number of connecting pieces is effectively reduced, and the integral assembly operation of the jet water pump is simplified.

Meanwhile, one implementation mode of the limiting structure is as follows: the limiting structures are a plurality of limiting convex strips 14 circumferentially distributed on the inner side wall of the pump cylinder shell 7, and the embodiment is adopted in the embodiment.

Another embodiment of the limit structure: the limiting structure is a limiting convex column arranged on the inner wall of the rear end of the pump barrel shell 7.

Furthermore, the specific structure of the driving motor is as follows: the driving motor comprises a motor shell 15 with a front end abutting against the inside of the mounting groove 12 and an opening at the rear end, and a backseat shell 16 with an opening at the front end and an opening at the rear end abutting against the limiting structure, the rotating shaft 11 penetrates through the motor shell 15, a motor rear cover 17 is covered at the opening of the motor shell 15, an annular convex edge 18 is arranged on the outer side wall of the motor rear cover 17, and the front end face of the annular convex edge 18 abuts against the rear end face of the motor shell 15; the opening edge of the rear seat shell 16 is recessed backwards to form a rear positioning groove, the rear end of the motor shell 15 is inserted into the opening of the rear seat shell 16, and the rear end face of the annular convex edge 18 is abutted to the groove bottom surface of the rear positioning groove.

The motor shell 15 and the mounting groove 12 are sealed through a surface, so that water can be prevented from permeating into the inner cavity of the motor shell 15 from a gap between the motor shell 15 and the rotating shaft 11; the motor shell 15 and the motor rear cover 17 are sealed through a surface, so that water can be prevented from permeating into the inner cavity of the motor shell 15; the motor rear cover 17 and the rear seat shell 16 are sealed through a surface, so that water can be prevented from permeating into the inner cavity of the rear seat shell 16.

In order to further improve the sealing performance between the motor housing 15 and the mounting groove 12, between the motor housing 15 and the motor rear cover 17, and between the motor rear cover 17 and the rear seat housing 16, and simultaneously improve the heat dissipation efficiency of the driving motor and the overall stability of the driving motor, the motor housing 15 is sleeved with a heat dissipation housing 19, the front end surface of the heat dissipation housing 19 is abutted with the rear end surface of the pump body 1 and is fixedly connected with the front end surface of the rear seat housing 16 through a fastening piece 20, and the rear end surface is abutted with the front end surface of the rear seat housing 16 and is fixedly connected with the rear seat housing through the fastening. Namely, a surface-to-surface seal is added before the surface-to-surface seal between the motor housing 15 and the mounting groove 12, between the motor housing 15 and the motor rear cover 17 and between the motor rear cover 17 and the rear seat housing 16 through the front and rear end surfaces of the heat dissipation housing 19.

In addition, in order to facilitate the installation and the location of heat dissipation shell 19, the notch border of mounting groove 12 is sunken forward and is formed with preceding constant head tank, the front end interior border of heat dissipation shell 19 extends forward and forms the protruding edge 21 of location in the preceding constant head tank, and the rear end interior border of heat dissipation shell 19 extends backward and forms the protruding edge two 22 of location in the back constant head tank.

In order to further improve the sealing performance between the motor shell 15 and the mounting groove 12, a first sealing ring 23 is arranged between the outer side wall of the motor shell 15 and the side wall of the front positioning groove.

In order to further improve the sealing performance between the motor housing 15 and the motor rear cover 17 and between the motor rear cover 17 and the rear seat housing 16, a first sealing ring 24 is arranged between the outer side wall of the motor housing 15 and the side wall of the rear positioning groove.

In addition, the driving motor also comprises a stator 25 fixed on the inner wall of the motor shell 15 and a rotor 26 sleeved on the rotating shaft 11 and matched with the stator 25, in order to prevent water in the pump body 1 from permeating into the motor shell 15 along the axial direction of the rotating shaft 11, a water-blocking front cover 27 is sleeved on the rotating shaft 11 between the stator 25 and the front end wall of the motor shell 15, the front end surface of the water-blocking front cover 27 is abutted against the motor shell 15, and the rear end surface of the water-blocking front cover 27 is abutted against the stator 25; meanwhile, in order to increase the sealing performance between the water retaining front cover 27 and the motor housing 15, an annular groove is formed in the front end face of the water retaining front cover 27 along the central line of the front end face, and a third sealing ring 28 is arranged in the annular groove.

Furthermore, since the driving motor needs to be electrically connected with an external power supply, in order to ensure the sealing performance of the electrical connection between the driving motor and the external power supply, a motor controller 29 is arranged in the inner cavity of the rear seat shell 16, an insertion through hole 30 is arranged on the rear end surface of the pump cylinder shell 7, an insertion column 31 inserted in the insertion through hole 30 is arranged on the rear seat shell 16, and a sealing ring four 32 is arranged between the column wall of the insertion column 31 and the hole wall of the insertion through hole 30; the plug column 31 is provided with a wire passing hole for communicating the plug through hole 30 with the inner cavity of the rear seat shell 16, and the wire passing hole and the plug through hole 30 form a wire passage for electrically connecting the motor controller 29 with the outside.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides an amphibious injection water pump, is provided with in the pump body (1) and inhales water cavity (3), is used for placing impeller cavity (4) of impeller (5) and high-pressure chamber (6) that communicate with impeller cavity (4), delivery port (2) respectively including the pump body (1) that has delivery port (2), its characterized in that: still including setting up pump barrel casing (7) on the pump body (1) rear end, form a airtight cavity (8) between the internal face of pump barrel casing (7) and the outer wall of the pump body (1), set up water inlet (9) with airtight cavity (8) intercommunication on pump barrel casing (7), set up the mouth of a river (10) of crossing of intercommunication suction cavity (3) and airtight cavity (8) on the pump body (1), be provided with driving motor in airtight cavity (8), driving motor's pivot (11) extend forward and penetrate among pump body (1) to impeller cavity (4) and be connected with impeller (5) transmission.

2. An amphibious jet water pump as claimed in claim 1 wherein: be provided with mounting groove (12) on the rear end face of the pump body (1), offer shaft hole (13) that are linked together with impeller cavity (4) on the tank bottom of mounting groove (12), be provided with limit structure on the inner wall of pump barrel casing (7), driving motor's front end supports and leans on in mounting groove (12), and the rear end supports and leans on limit structure, and driving motor's pivot (11) run through shaft hole (13) and are connected with impeller (5) transmission.

3. An amphibious jet water pump as claimed in claim 2 wherein: the limiting structures are a plurality of limiting convex strips (14) circumferentially distributed on the inner side wall of the pump barrel shell (7);

or the limiting structure is a limiting convex column arranged on the inner wall of the rear end of the pump cylinder shell (7).

4. An amphibious jet water pump as claimed in claim 2 wherein: the driving motor comprises a motor shell (15) with a front end abutting against the inside of the mounting groove (12) and an opening at the rear end, and a rear seat shell (16) with an opening at the front end and an opening at the rear end abutting against the limiting structure, the rotating shaft (11) is arranged on the motor shell (15) in a penetrating manner, a motor rear cover (17) is arranged at the opening of the motor shell (15) in a covering manner, an annular convex edge (18) is arranged on the outer side wall of the motor rear cover (17), and the front end face of the annular convex edge (18) abuts against the rear end face of the motor shell (15); the opening border of back seat casing (16) is sunken backward and is formed with the back constant head tank, and the rear end of motor casing (15) is inserted and is established at the opening part of back seat casing (16), and the rear end face of annular protruding border (18) is inconsistent with the tank bottom surface of back constant head tank.

5. An amphibious jet water pump as claimed in claim 4 wherein: the motor shell (15) is sleeved with a heat dissipation shell (19), the front end face of the heat dissipation shell (19) is abutted to the rear end face of the pump body (1) and fixedly connected through a fastener (20), and the rear end face of the heat dissipation shell is abutted to the front end face of the rear seat shell (16) and fixedly connected through the fastener (20).

6. An amphibious jet water pump as claimed in claim 5 wherein: the notch border of mounting groove (12) is sunken forward and is formed with preceding constant head tank, the front end interior border of heat dissipation shell (19) extends forward and forms location protruding edge one (21) in the preceding constant head tank, and the rear end interior border of heat dissipation shell (19) extends backward and forms location protruding edge two (22) in extending to the back constant head tank.

7. An amphibious jet water pump as claimed in claim 6 wherein: and a first sealing ring (23) is arranged between the outer side wall of the motor shell (15) and the side wall of the front positioning groove.

8. An amphibious jet water pump as claimed in claim 4 or claim 5 or claim 6 wherein: and a second sealing ring (24) is arranged between the outer side wall of the motor shell (15) and the side wall of the rear positioning groove.

9. An amphibious jet water pump as claimed in claim 4 wherein: the driving motor further comprises a stator (25) fixed on the inner wall of the motor shell (15) and a rotor (26) sleeved on the rotating shaft (11) and matched with the stator (25), a water retaining front cover (27) is sleeved on the rotating shaft (11) between the stator (25) and the front end wall of the motor shell (15), the front end face of the water retaining front cover (27) is abutted against the motor shell (15), and the rear end face of the water retaining front cover is abutted against the stator (25); an annular groove is formed in the front end face of the water retaining front cover (27) along the central line of the front end face, and a third sealing ring (28) is arranged in the annular groove.

10. An amphibious jet water pump as claimed in claim 4 wherein: a motor controller (29) is arranged in an inner cavity of the rear seat shell (16), an inserting through hole (30) is formed in the rear end face of the pump cylinder shell (7), an inserting column (31) inserted in the inserting through hole (30) is arranged on the rear seat shell (16), and a sealing ring IV (32) is arranged between the column wall of the inserting column (31) and the hole wall of the inserting through hole (30); the plug column (31) is provided with a wire passing hole for communicating the plug through hole (30) with the inner cavity of the rear seat shell (16), and the wire passing hole and the plug through hole (30) form a wire channel for electrically connecting the motor controller (29) with the outside.

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