CN210686319U

CN210686319U - Vertical single-stage centrifugal water pump

Info

Publication number: CN210686319U
Application number: CN201921349052.4U
Authority: CN
Inventors: 陈平军
Original assignee: River Jingqian Pump Co ltd
Current assignee: River Jingqian Pump Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-05
Anticipated expiration: 2029-08-20

Abstract

The utility model relates to a centrifugal water pump technical field especially relates to a vertical single-stage centrifugal water pump. Comprises a motor; the motor is vertically arranged, and the lower part of the motor is connected with a pump cover; the rotating shaft of the motor is connected with an impeller; the impeller is fixed by an impeller nut below the impeller; the water inlet pipe is arranged on the right side of the impeller; the right side of the water inlet pipe is connected with a steering joint; a water outlet pipe is arranged on the left side of the impeller; the left side of the water outlet pipe is also connected with a steering joint. A vertical single-stage centrifugal water pump, its inlet tube and the steering joint who goes out the rotatable direction of water piping connection, the installation of being convenient for, the reliability is high.

Description

Vertical single-stage centrifugal water pump

Technical Field

The utility model relates to a centrifugal water pump technical field especially relates to a vertical single-stage centrifugal water pump.

Background

Centrifugal pumps are a very widely used type of water pump. The working principle is as follows: by means of the impeller rotating at high speed, the liquid obtains kinetic energy under the action of inertial centrifugal force to increase pressure. Before the water pump works, the pump body and the water inlet pipe must be filled with water. When the impeller rotates, the blades promote water to rotate quickly, the rotating water flies out from the impeller under the action of centrifugal force, a vacuum area is formed at the center of the impeller after the water in the pump is thrown out, and the water at a water source is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure. Thus, continuous water pumping can be realized after circulation is not completed.

The current single-stage centrifugal water pump is either the inlet pipe and the outlet pipe are arranged by 180 degrees from left to right, or the inlet pipe is arranged below and the outlet pipe is horizontal, and the inlet pipe and the outlet pipe are arranged by 90 degrees. In some cases, it is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a vertical single-stage centrifugal water pump comprises a motor; the motor is vertically arranged, and the lower part of the motor is connected with a pump cover; the rotating shaft of the motor is connected with an impeller; the impeller is fixed by an impeller nut below the impeller; the water inlet pipe is arranged on the right side of the impeller; the right side of the water inlet pipe is connected with a steering joint; a water outlet pipe is arranged on the left side of the impeller; the left side of the water outlet pipe is also connected with a steering joint.

Further optimize this technical scheme, be provided with the bleed valve on the pump cover.

Further optimize this technical scheme, the upper portion of inlet tube and outlet pipe all is provided with the plug screw.

Further optimizing the technical scheme, the steering joint comprises a vertical elbow; the horizontal part of the upper part of the vertical elbow is inserted into the water inlet pipe and is fixed by the first end cover; the part of the vertical elbow inserted into the water inlet pipe is provided with an O-shaped sealing ring; a Y-shaped sealing ring and a check ring are arranged between the vertical elbow and the water inlet pipe; the check ring is arranged on the outer side of the Y-shaped sealing ring; a cylindrical roller is arranged at the position where the first end cover is contacted with the vertical elbow; the first end cover is fixed on the water inlet pipe through a first fastening bolt; the vertical elbow is connected with a flat elbow, and the vertical elbow and the flat elbow are fixed through a second end cover; the second end cover is fixed on the vertical elbow through a second fastening bolt; the part of the vertical elbow inserted into the flat elbow is provided with a star-shaped sealing ring; the top end of the flat elbow is provided with a universal ball at the contact part with the vertical elbow; and a flange is arranged at the right end of the flat elbow.

Further optimizing the technical scheme, the universal ball comprises a shell; a ball body is arranged in the shell, and a support body is arranged between the ball body and the shell; the ball is fixed on the shell by a sealing cover.

A vertical single-stage centrifugal water pump, its inlet tube and the steering joint who goes out the rotatable direction of water piping connection, the installation of being convenient for, the reliability is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the steering joint.

FIG. 3 is a schematic diagram of a ball transfer unit.

In the figure: 1. a motor; 2. a deflation valve; 3. a water outlet pipe; 4. an impeller; 5. an impeller nut; 6. a water inlet pipe; 7. a steering joint; 8. a plug screw; 9. a pump cover; 71. an O-shaped sealing ring; 72. a Y-shaped seal ring; 73. a retainer ring; 74. a ball transfer unit; 75. a star-shaped sealing ring; 76. flattening the elbow; 77. a flange; 78. a second end cap; 79. a second fastening bolt; 710. a vertical elbow; 711. a cylindrical roller; 712. a first end cap; 713. a first fastening bolt; 741. a housing; 742. a support body; 743. sealing the cover; 744. a sphere.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, a vertical single-stage centrifugal water pump includes a motor 1; the motor 1 is vertically arranged, and the lower part of the motor is connected with a pump cover 9; the rotating shaft of the motor 1 is connected with an impeller 4; the impeller 4 is fixed by an impeller nut 5 below the impeller to prevent the impeller from falling off; the water inlet pipe 6 is arranged on the right side of the impeller 4; the right side of the water inlet pipe 6 is connected with a steering joint 7; the left side of the impeller 4 is provided with a water outlet pipe 3; the left side of the water outlet pipe 3 is also connected with a steering joint 7. When the impeller 4 rotates, water enters the water inlet pipe 6 from the steering joint 7 and then is discharged from the water outlet pipe 3. The pump cover 9 is provided with a deflation valve 2 which can exhaust the gas in the pump. The upper parts of the water inlet pipe 6 and the water outlet pipe 3 are both provided with screw plugs 8 which can be used for adding water into the pump.

As shown in fig. 1-2, the steering joint 7 includes a vertical bend 710; the horizontal portion of the upper portion of the vertical elbow 710 is inserted into the interior of the water inlet pipe 6 and is fixed by the first end cap 712; the part of the vertical elbow 710 inserted into the water inlet pipe 6 is provided with an O-shaped sealing ring 71 which can carry out primary sealing; a Y-shaped sealing ring 72 and a retainer ring 73 are arranged between the vertical elbow 710 and the water inlet pipe 6; the retainer ring 73 is arranged on the outer side of the Y-shaped sealing ring 72; when the first end cap 712 is screwed down, the retaining ring 73 made of polytetrafluoroethylene is compressed, and then the Y-shaped sealing ring 72 is compressed, so that a reliable sealing effect is obtained, and the retaining ring 73 has good strength and can also play a supporting role. A cylindrical roller 711 is arranged at the position where the first end cover 712 contacts the vertical elbow 710, so that the vertical elbow 710 can rotate in a vertical plane; the first end cap 712 is fixed on the water inlet pipe 6 by a first fastening bolt 713, and the first end cap 712 is prevented from falling off; the vertical elbow 710 is connected with a flat elbow 76, and the two are fixed through a second end cover 78; the second end cover 78 is fixed on the vertical elbow 710 by a second fastening bolt 79, so that the second end cover 78 is prevented from falling off; the star-shaped sealing ring 75 is arranged at the part of the vertical elbow 710 inserted into the flat elbow 76, so that a reliable sealing effect can be achieved; the top end of the flat elbow 76 is provided with a universal ball 74 at the contact part with the vertical elbow 710, so that the flat elbow 76 can rotate freely; the right end of the flat bend 76 is provided with a flange 77 for connection to a pipe.

As shown in fig. 3, the ball gimbal 74 includes a housing 741; a sphere 744 is arranged in the housing 741, a support 742 is arranged between the two, and the sphere 744 can freely rotate by the support 742; the sphere 744 is fixed to the housing 741 by a cover 743.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a vertical single-stage centrifugal water pump which characterized in that: the water pump comprises a motor (1); the motor (1) is vertically arranged, and the lower part of the motor is connected with a pump cover (9); the rotating shaft of the motor (1) is connected with an impeller (4); the impeller (4) is fixed by an impeller nut (5) below the impeller; a water inlet pipe (6) is arranged on the right side of the impeller (4); the right side of the water inlet pipe (6) is connected with a steering joint (7); the left side of the impeller (4) is provided with a water outlet pipe (3); the left side of the water outlet pipe (3) is also connected with a steering joint (7).

2. A vertical single-stage centrifugal water pump as defined in claim 1, wherein: and the pump cover (9) is provided with an air release valve (2).

3. A vertical single-stage centrifugal water pump as defined in claim 1, wherein: the upper parts of the water inlet pipe (6) and the water outlet pipe (3) are both provided with screw plugs (8).

4. A vertical single-stage centrifugal water pump as defined in claim 1, wherein: the steering joint (7) comprises a vertical bend (710); the horizontal part of the upper part of the vertical elbow (710) is inserted into the water inlet pipe (6) and is fixed by a first end cover (712); an O-shaped sealing ring (71) is arranged at the part of the vertical elbow (710) inserted into the water inlet pipe (6); a Y-shaped sealing ring (72) and a check ring (73) are arranged between the vertical elbow (710) and the water inlet pipe (6); the retainer ring (73) is arranged on the outer side of the Y-shaped sealing ring (72); a cylindrical roller (711) is arranged at the position where the first end cover (712) is contacted with the vertical elbow (710); the first end cover (712) is fixed on the water inlet pipe (6) by a first fastening bolt (713); the vertical elbow (710) is connected with a flat elbow (76), and the vertical elbow and the flat elbow are fixed through a second end cover (78); the second end cover (78) is fixed on the vertical elbow (710) by a second fastening bolt (79); the star-shaped sealing ring (75) is arranged at the part of the vertical elbow (710) inserted into the flat elbow (76); the top end of the flat elbow (76) is provided with a universal ball (74) at the contact part with the vertical elbow (710); the right end of the flat elbow (76) is provided with a flange (77).

5. A vertical single-stage centrifugal water pump as defined in claim 4, wherein: the ball transfer unit (74) includes a housing (741); a sphere (744) is arranged in the shell (741), and a support body (742) is arranged between the sphere and the shell; the sphere (744) is fixed to the housing (741) by a cover (743).