CN215719740U

CN215719740U - Light stainless steel vertical multistage centrifugal pump

Info

Publication number: CN215719740U
Application number: CN202122296250.2U
Authority: CN
Inventors: 刘进涛; 李金�; 徐长莲; 徐长伟; 张以恒
Original assignee: Tianchang Jianghuai Industrial Group Co ltd
Current assignee: Tianchang Jianghuai Industrial Group Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-01
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a light stainless steel vertical multistage centrifugal pump, which comprises a motor and also comprises: the top of the sealing tube is fixedly connected with the bottom of the motor, the bottom of the sealing tube is fixedly connected with a connecting tube, the bottom of the connecting tube is fixedly connected with a base, a limiting groove is formed in the outer surface of the sealing tube, a fixing groove is formed in the outer surface, close to the limiting groove, of the sealing tube, a clamping groove is formed in the inner surface of the sealing tube, and the clamping groove is communicated with the fixing groove; the sealing device is lapped on the inner surface of the sealing pipe and comprises a sealing plate, the outer surface of the sealing plate is fixedly connected with a limiting plate, a mounting groove is formed in the outer surface of the limiting plate, an expansion spring is fixedly connected to the inside of the mounting groove, and a clamping block is fixedly connected to the end of the expansion spring and is convenient to maintain parts inside the sealing pipe.

Description

Light stainless steel vertical multistage centrifugal pump

Technical Field

The utility model relates to the field of centrifugal pumps, in particular to a light stainless steel vertical multistage centrifugal pump.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

But current multistage centrifugal pump still has some drawbacks, and when the motor shaft was connected with other parts, protected through the sealed tube, utilize screw rod and screw hole to seal the sealed tube with the apron, when the junction of motor shaft damaged, be difficult to maintain and change it, for this reason, we have provided a vertical multistage centrifugal pump of light-duty stainless steel.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the light stainless steel vertical multistage centrifugal pump which is convenient for maintaining the components in the sealing pipe.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a light-duty stainless steel vertical multistage centrifugal pump, includes the motor, still includes:

the top of the sealing tube is fixedly connected with the bottom of the motor, the bottom of the sealing tube is fixedly connected with a connecting tube, the bottom of the connecting tube is fixedly connected with a base, a limiting groove is formed in the outer surface of the sealing tube, a fixing groove is formed in the outer surface, close to the limiting groove, of the sealing tube, a clamping groove is formed in the inner surface of the sealing tube, and the clamping groove is communicated with the fixing groove;

a sealing device overlapping the inner surface of the sealing tube.

According to a preferable technical scheme, the sealing device comprises a sealing plate, a limiting plate is fixedly connected to the outer surface of the sealing plate, an installation groove is formed in the outer surface of the limiting plate, an expansion spring is fixedly connected to the interior of the installation groove, and a clamping block is fixedly connected to the end portion of the expansion spring.

As a preferable technical solution of the present invention, the number of the fixing grooves is several, and the several fixing grooves are uniformly arranged on the outer surface of the sealing tube.

As a preferable technical scheme of the utility model, the sealing plate is arranged in an arc shape, and the outer surface of the sealing plate is provided with anti-skid grains.

As a preferred technical scheme of the utility model, the radian of the limit plate is the same as that of the seal plate, and the size of the limit plate is matched with that of the limit groove.

As a preferable technical solution of the present invention, the number of the sealing plates is two, and the two sealing plates are arranged axisymmetrically with respect to a vertical center line of the sealing tube.

As a preferable technical scheme of the utility model, the size of the fixture block is matched with that of the clamping groove, and the height of the fixture block is eight times of the zero point of the depth of the mounting groove.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through the fixed slot and the draw-in groove that set up, when the junction of the axle of motor goes wrong, stretch into the inside of fixed slot with the finger to press the inside fixture block of fixed slot, press fixture block extrusion draw-in groove and extrusion expanding spring and take in the inside of mounting groove, outwards extract the closing plate, thereby realize maintaining and changing the adapting unit of sealed tube inside.

2. Through closing plate and the limiting plate that sets up, when accomplishing with the change to the part maintenance of sealed tube inside, press the fixture block, fixture block extrusion expanding spring and take in the inside of mounting groove, laminate the internal surface at the spacing groove with the limiting plate, and promote the limiting plate to the inside of spacing groove, the in-process of promotion, expanding spring constantly extrudes the fixture block, and extrude the inside of draw-in groove with the fixture block, thereby make fixed connection between sealed piece and the sealed tube, and make the closing plate laminate at the surface of sealed tube, make the sealed effect of sealed tube better, and convenient operation, and is fast, do not need the participation of too many instruments.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view showing a structure of a fixing groove connection according to the present invention;

FIG. 3 is a diagram of a fixture block connection structure according to the present invention;

fig. 4 is a connection structure view of the extension spring of the present invention.

Wherein: 1. an electric motor; 2. a sealing tube; 3. a connecting pipe; 4. a base; 5. a limiting groove; 6. fixing grooves; 7. a card slot; 8. a sealing plate; 9. a limiting plate; 10. mounting grooves; 11. a tension spring; 12. and (7) clamping blocks.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1 to 4, the present invention provides a light stainless steel vertical multistage centrifugal pump, which comprises a motor 1, and further comprises:

the sealing device comprises a sealing tube 2, wherein the top of the sealing tube 2 is fixedly connected with the bottom of a motor 1, the bottom of the sealing tube 2 is fixedly connected with a connecting tube 3, the bottom of the connecting tube 3 is fixedly connected with a base 4, a limiting groove 5 is formed in the outer surface of the sealing tube 2, a fixing groove 6 is formed in the outer surface, close to the limiting groove 5, of the sealing tube 2, a clamping groove 7 is formed in the inner surface of the sealing tube 2, and the clamping groove 7 is communicated with the fixing groove 6;

and the sealing device is lapped on the inner surface of the sealing tube 2.

Through the fixed slot 6 and the draw-in groove 7 that set up, when the junction of motor 1's axle goes wrong, stretch into the inside of fixed slot 6 with the finger to press down the inside fixture block 12 of fixed slot 6, draw in the inside of mounting groove 10 with fixture block 12 extrusion draw-in groove 7 and extrusion expanding spring 11, outwards extract closing plate 8, thereby realize maintaining and changing the adapting unit of 2 inside of sealed tubes.

In other embodiments, the sealing device includes a sealing plate 8, a limiting plate 9 is fixedly connected to the outer surface of the sealing plate 8, a mounting groove 10 is formed in the outer surface of the limiting plate 9, an expansion spring 11 is fixedly connected to the inside of the mounting groove 10, and a clamping block 12 is fixedly connected to the end of the expansion spring 11.

Through closing plate 8 and the limiting plate 9 that sets up, when accomplishing with the change to the inside part maintenance of sealed tube 2, press fixture block 12, fixture block 12 extrudees expanding spring 11 and takes in the inside of mounting groove 10, laminate limiting plate 9 at the internal surface of spacing groove 5, and promote limiting plate 9 to the inside of spacing groove 5, the in-process of promotion, expanding spring 11 constantly extrudes fixture block 12, and extrude fixture block 12 into the inside of draw-in groove 7, thereby make fixed connection between sealed piece and the sealed tube 2, and make the laminating of closing plate 8 at the surface of sealed tube 2, make sealed tube 2's sealed effect better, and convenient operation, it is swift, do not need the participation of too many instruments.

In other embodiments, the number of the fixing grooves 6 is several, and several fixing grooves 6 are uniformly arranged on the outer surface of the sealing tube 2.

Through the fixed slot 6 that sets up, make things convenient for the staff to stretch into the finger and extrude fixture block 12.

In other embodiments, the sealing plate 8 is arc-shaped, and the outer surface of the sealing plate 8 is provided with anti-slip lines.

Through the closing plate 8 that sets up, anti-skidding line makes that the staff can be more stable takes up closing plate 8, stability when improving closing plate 8 and installing.

In other embodiments, the arc of the limit plate 9 is the same as that of the seal plate 8, and the size of the limit plate 9 is matched with that of the limit groove 5.

Through the limiting plate 9 who sets up, the profile size looks adaptation of the size of limiting plate 9 and the internal surface of spacing groove 5 conveniently carries on spacingly to limiting plate 9 to make the inside horizontal migration at spacing groove 5 that limiting plate 9 can be stable.

In other embodiments, the number of the sealing plates 8 is two, and the two sealing plates 8 are arranged axisymmetrically with respect to the vertical center line of the sealing tube 2.

Through the closing plate 8 that sets up, closing plate 8 laminates with the surface of sealing tube 2 to make sealing tube 2's sealed effect better.

In other embodiments, the size of the latch 12 is matched with the size of the slot 7, and the height of the latch 12 is eight times the depth of the mounting slot 10.

Through the fixture block 12, the fixture block 12 is matched with the clamping groove 7, so that the gap between the fixture block 12 and the clamping groove 7 is small, and the sealing performance of the device is guaranteed.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a vertical multistage centrifugal pump of light-duty stainless steel, includes motor (1), its characterized in that: further comprising:

the sealing device comprises a sealing tube (2), wherein the top of the sealing tube (2) is fixedly connected with the bottom of a motor (1), the bottom of the sealing tube (2) is fixedly connected with a connecting tube (3), the bottom of the connecting tube (3) is fixedly connected with a base (4), a limiting groove (5) is formed in the outer surface of the sealing tube (2), a fixing groove (6) is formed in the outer surface, close to the limiting groove (5), of the sealing tube (2), a clamping groove (7) is formed in the inner surface of the sealing tube (2), and the clamping groove (7) is communicated with the fixing groove (6);

a sealing device, which is lapped on the inner surface of the sealing tube (2).

2. The light stainless steel vertical multistage centrifugal pump according to claim 1, characterized in that: the sealing device comprises a sealing plate (8), wherein a limiting plate (9) is fixedly connected to the outer surface of the sealing plate (8), a mounting groove (10) is formed in the outer surface of the limiting plate (9), an expansion spring (11) is fixedly connected to the inner portion of the mounting groove (10), and a clamping block (12) is fixedly connected to the end portion of the expansion spring (11).

3. The light stainless steel vertical multistage centrifugal pump according to claim 1, characterized in that: the number of the fixing grooves (6) is a plurality, and the fixing grooves (6) are uniformly arranged on the outer surface of the sealing tube (2).

4. The light stainless steel vertical multistage centrifugal pump according to claim 2, characterized in that: the sealing plate (8) is arranged in an arc shape, and anti-skid grains are arranged on the outer surface of the sealing plate (8).

5. The light stainless steel vertical multistage centrifugal pump according to claim 2, characterized in that: the radian of the limiting plate (9) is the same as that of the sealing plate (8), and the size of the limiting plate (9) is matched with that of the limiting groove (5).

6. The light stainless steel vertical multistage centrifugal pump according to claim 2, characterized in that: the number of the sealing plates (8) is two, and the two sealing plates (8) are arranged in an axisymmetrical manner by taking the vertical central line of the sealing pipe (2) as an axis.

7. The light stainless steel vertical multistage centrifugal pump according to claim 2, characterized in that: the size of the clamping block (12) is matched with that of the clamping groove (7), and the height of the clamping block (12) is eight times of the zero point of the depth of the mounting groove (10).