CN220101561U

CN220101561U - Rain-proof cover of centrifugal pump

Info

Publication number: CN220101561U
Application number: CN202321190828.9U
Authority: CN
Inventors: 刘建晟
Original assignee: Leo Group Zhejiang Pump Co Ltd
Current assignee: Leo Group Zhejiang Pump Co Ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-11-28
Anticipated expiration: 2033-05-15

Abstract

The utility model belongs to the technical field of centrifugal pumps, and relates to a rain-proof cover of a centrifugal pump, which comprises a pump body and a motor which are fixedly connected, wherein one end of a motor shaft of the motor is connected with an impeller in the pump body, the other end of the motor shaft extends out of the motor cover and is connected with the rain-proof cover, a gap is reserved between the rain-proof cover and the motor cover, the centrifugal pump is covered, and the rain-proof cover rotates along with the operation of the centrifugal pump. The rain cover for the centrifugal pump has the advantages of simple structure, convenient installation, good rain-proof effect and long service life.

Description

Rain-proof cover of centrifugal pump

Technical Field

The utility model belongs to the technical field of centrifugal pumps, and relates to a rain cover of a centrifugal pump.

Background

The conventional vertical centrifugal pump generally comprises a pump body, a connecting body, a motor, a rain cover and the like. The rain-proof cover is formed by linear cutting of iron plates, and is fixedly connected with the fan cover of the motor through rain-proof cover supporting feet. The connection mode is generally a welding or bolting mode. The rain-proof cover is inconvenient to install due to the small space between the rain-proof cover and the fan cover, the rain-proof effect is poor, and small rain drops fall on the rain-proof cover for a long time to cause the corrosion of the rain-proof cover.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the rain cover of the centrifugal pump, which has the advantages of simple structure, convenient installation, good rain-proof effect and long service life.

In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme:

the utility model provides a centrifugal pump rain-proof cover, centrifugal pump includes fixed connection's pump body and motor, the motor shaft one end of motor is connected with the impeller in the pump body, and the other end extends outside the motor fan housing and is connected with the rain-proof cover, leave the clearance and cover the centrifugal pump between the fan housing of rain-proof cover and motor, the rain-proof cover rotates thereupon during the centrifugal pump work.

In the centrifugal pump rain cover, the outer end face of the rain cover is provided with an inclined surface which is inclined downwards from inside to outside.

In the foregoing centrifugal pump rain-proof cover, the rain-proof cover is rotatably connected with the motor shaft, and the rotatable connection mode may be selected from the following modes: the rain cover is in friction connection with the motor shaft; a rotatable member, such as a bearing or a shaft sleeve, is disposed between the rain shield and the motor shaft. When the rain shield is rotatably connected with the motor shaft, the motor shaft can rotate in the same direction due to the fact that the rain shield is in a free state.

In the centrifugal pump rain shield, a connecting seat is arranged at the bottom axis of the rain shield, and the connecting seat cover is arranged at the end part of the motor shaft and is rotatably connected with the motor shaft.

Furthermore, in the centrifugal pump rainproof cover, a bearing is arranged between the motor shaft and the connecting seat, and a shaft shoulder structure for installing the bearing is arranged at the end part of the motor shaft.

In the rain-proof cover of a centrifugal pump, the connecting seat is provided with the limiting through grooves distributed along the circumferential direction, the motor shaft is provided with the limiting annular grooves, the connecting seat and the motor shaft are axially fixed through the clamping pins, and the clamping pins penetrate through the limiting through grooves and then are connected with the limiting annular grooves. Preferably, the two limiting through grooves are oppositely arranged, and the two ends of the clamping needle respectively penetrate through the limiting through grooves and then are clamped in the annular limiting grooves.

In the centrifugal pump rain-proof cover, a plurality of reinforcing ribs are arranged at the bottom of the rain-proof cover, and each reinforcing rib comprises middle ribs distributed along the radial direction of the rain-proof cover and edge ribs distributed along the circumferential direction of the rain-proof cover. Further, the middle rib is connected with the connecting seat, and the edge rib is arranged at the outer edge.

In the centrifugal pump rainproof cover, a fan is arranged at one end of the motor, which is opposite to the rainproof cover, and the fan drives the rainproof cover to rotate through the middle ribs. Further, the fan comprises a fan housing and blades arranged in the fan housing.

In the centrifugal pump rainproof cover, the middle rib is provided with a plurality of air passing holes. Preferably, the wind through hole is arranged between the upper end of the inner side of the middle rib and the bottom of the rain cover.

In the centrifugal pump rainproof cover, a centrifugal pump steering mark is arranged on the rainproof cover, and the centrifugal pump steering mark is consistent with the correct steering of the centrifugal pump.

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

1. the utility model provides a rain cover of a centrifugal pump, which can rotate when the centrifugal pump works, and can throw away dust, rainwater and other impurities falling onto the rain cover during rotation, so that a better protection effect is obtained, and meanwhile, the dust, the rainwater and other impurities are prevented from accumulating on the rain cover for a long time to cause corrosion of the rain cover. The upper end face of the rain cover is obliquely arranged, so that the rain cover has a better impurity throwing effect.

2. According to the utility model, the edge ribs are added at the bottom of the rain-proof cover, so that the rain-proof cover can be prevented from deforming during processing or using, and the middle ribs are added to play a supporting role. In addition, the wind transmitted to the rain shield by the motor fan can drive the rain shield to rotate through the middle rib, so that a second fan is formed.

3. The motor shaft is rotatably connected with the rain shield, so that the motor shaft can only drive the rain shield to rotate within a limited range, and the rain shield can stop rotating when the resistance is overlarge; according to the utility model, the wind through holes are formed in the middle ribs, so that the motor fan can only drive the rain cover to rotate in a limited range, and when the resistance is overlarge, the rotation of the rain cover can be stopped, and wind passes through the wind through holes; when a certain weight is pressed on the rainproof cover, the object can be prevented from being thrown out to generate danger.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is an axial cross-sectional view of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a perspective view of the rain shield of the present utility model;

reference numerals: 1. a motor; 2. a motor shaft; 3. a rain cover; 4. a connecting seat; 5. a bearing; 6. limiting through grooves; 7. a limit annular groove; 8. a clamping needle; 9. middle ribs; 10. edge ribs; 11. a fan; 12. and a wind passing hole.

Detailed Description

The utility model is further described in the following embodiments with reference to the figures, see fig. 1-5:

the utility model provides a centrifugal pump rain-proof cover, centrifugal pump includes fixed connection's pump body and motor 1, motor 1's motor shaft 2 one end is connected with the impeller in the pump body, and the other end extends outside motor 1 fan housing and is connected with rain-proof cover 3, leave the clearance and cover the centrifugal pump between rain-proof cover 3 and motor 1's the fan housing, the rotation along with it is waterproof cover 3 to the centrifugal pump during operation. When the rain cover works, the motor shaft 2 rotates, and the rain cover 3 rotates along with the motor shaft, so that dust, rainwater and other impurities falling on the rain cover 3 are thrown out.

The outer end surface of the rain shield 3 is provided with an inclined surface which is inclined downwards from inside to outside, and the inclined rain shield 3 can facilitate the discharge of dust and rainwater.

The rain cover 3 is rotatably connected with the motor shaft 2, and the rotatable connection mode can be selected from the following modes: the rain cover 3 is in friction connection with the motor shaft 2; a rotatable member, such as a bearing 5 or a bushing, is provided between the rain cover 3 and the motor shaft 2. When the rain cover 3 is rotatably connected with the motor shaft 2, the rain cover 3 can rotate in the same direction when the motor shaft 2 rotates because the rain cover 3 is in a free state, but the rotation is limited, and when the resistance is excessive, the rotation of the rain cover 3 can be stopped.

Referring to fig. 3, a connecting seat 4 is disposed at the bottom axis of the rain cover 3, and the connecting seat 4 is covered at the end of the motor shaft 2 and is rotatably connected with the motor shaft 2.

Further, a bearing 5 is arranged between the motor shaft 2 and the connecting seat 4, a shaft shoulder structure for installing the bearing 5 is arranged at the end part of the motor shaft 2, the outer ring of the bearing 5 is tightly matched with the inner wall of the connecting seat 4, and the inner ring of the bearing 5 is tightly matched with the motor shaft 2.

The connecting seat 4 is provided with limiting through grooves 6 distributed along the circumferential direction, the motor shaft 2 is provided with limiting annular grooves 7, the connecting seat 4 and the motor shaft 2 are axially fixed through clamping pins 8, and the clamping pins 8 penetrate through the limiting through grooves 6 and then are connected with the limiting annular grooves 7. Preferably, two limiting through grooves 6 are oppositely arranged, and two ends of the clamping needle 8 respectively penetrate through the limiting through grooves 6 and then are clamped in the annular limiting grooves.

During installation, the bearing 5 is firstly arranged at the shaft shoulder of the motor shaft 2, then the end part of the clamping needle 8 is aligned with the limiting through groove 6 and clamped in, the connecting seat 4 of the rain cover 3 is aligned with the bearing 5 and presses the top end of the rain cover 3 downwards, and the clamping needle 8 is clamped in the limiting annular groove 7, so that the installation can be completed. When the rain cover 3 rotates relative to the motor shaft 2, the clamping pin slides in the limiting annular groove 7, and a certain friction force exists between the clamping pin and the limiting annular groove 7, so that the rotation of the rain cover 3 can be ensured when the motor shaft 2 rotates.

The bottom of the rain cover 3 is provided with a plurality of reinforcing ribs, and the reinforcing ribs comprise middle ribs 9 distributed along the radial direction of the rain cover 3 and edge ribs 10 distributed along the circumferential direction of the rain cover 3. Further, the middle rib 9 is connected with the connecting seat 4, and the edge rib 10 is arranged at the outer edge. The edge ribs 10 can prevent the rain cover 3 from deforming during processing or use, and the middle ribs 9 can play a supporting role.

The end of the motor 1 opposite to the rain cover 3 is provided with a fan 11, and the fan 11 drives the rain cover 3 to rotate through the middle rib 9. The radially arranged middle ribs 9 form a fan blade-like structure, and when wind generated by the fan 11 of the motor 1 is transmitted to the rain cover 3, the middle ribs 9 can drive the rain cover 3 to rotate. Both the fan 10 of the motor 1 and the motor shaft 2 can ensure that the rain cover 3 rotates with it when the centrifugal pump is in operation.

The middle rib 9 is provided with a plurality of air through holes 12. Preferably, the wind through hole 12 is arranged between the upper end of the inner side of the middle rib 9 and the bottom of the rain cover 3. When the rain cover 3 is stopped from rotating by a large resistance, wind generated from the fan 11 of the motor 1 passes through the wind hole 12.

The rainproof cover 3 is provided with a centrifugal pump steering mark which is consistent with the correct steering of the centrifugal pump. Through the centrifugal pump steering mark, when the water pump operates instantly, the rain cover 3 is driven to rotate, and whether the water pump steering is correct or not can be checked.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a centrifugal pump rain-proof cover, centrifugal pump includes the pump body and motor (1) of fixed connection, a serial communication port, motor shaft (2) one end of motor (1) is connected with the internal impeller of pump, and the other end extends outside motor (1) fan housing and is connected with rain-proof cover (3), leave the clearance and cover between rain-proof cover (3) and the fan housing of motor (1) and establish the centrifugal pump, the rain-proof cover (3) rotate thereupon during the centrifugal pump work.

2. A centrifugal pump rain cover according to claim 1, characterized in that the outer end surface of the rain cover (3) is provided as a slope sloping downwards from inside to outside.

3. A centrifugal pump rain cover according to claim 1, characterized in that the rain cover (3) is rotatably connected with the motor shaft (2).

4. A centrifugal pump rain cover according to claim 3, wherein a connecting seat (4) is arranged at the bottom axle center of the rain cover (3), and the connecting seat (4) is covered at the end part of the motor shaft (2) and is rotatably connected with the motor shaft (2).

5. The rain cover for the centrifugal pump according to claim 4, wherein a bearing (5) is arranged between the motor shaft (2) and the connecting seat (4), and a shaft shoulder structure for installing the bearing (5) is arranged at the end part of the motor shaft (2).

6. The rain-proof cover of a centrifugal pump according to claim 4, wherein limiting through grooves (6) distributed along the circumferential direction are formed in the connecting seat (4), a limiting annular groove (7) is formed in the motor shaft (2), the connecting seat (4) and the motor shaft (2) are axially fixed through clamping pins (8), and the clamping pins (8) penetrate through the limiting through grooves (6) and then are connected with the limiting annular groove (7).

7. A centrifugal pump rain cover according to claim 3, characterized in that the bottom of the rain cover (3) is provided with a number of stiffening ribs, which stiffening ribs comprise central ribs (9) distributed radially along the rain cover (3) and edge ribs (10) distributed circumferentially along the rain cover (3).

8. A centrifugal pump rain cover according to claim 7, characterized in that the end of the motor (1) opposite to the rain cover (3) is provided with a fan (11), said fan (11) driving the rain cover (3) to rotate via the middle rib (9).

9. A centrifugal pump rain cover according to claim 8, characterized in that the central rib (9) is provided with a number of wind through holes (12).

10. A centrifugal pump rain cover according to claim 1, characterized in that the rain cover (3) is provided with a centrifugal pump turning identification which coincides with the correct turning of the centrifugal pump.