CN214698350U

CN214698350U - Multistage centrifugal pump suitable for many occasions

Info

Publication number: CN214698350U
Application number: CN202023199715.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Hebei Delin Machinery Co ltd
Current assignee: Hebei Delin Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-12
Anticipated expiration: 2030-12-28

Abstract

A multi-stage centrifugal pump suitable for multiple occasions relates to the technical field of centrifugal pumps; including the centrifugal pump main part, including a motor, an end cap, a controller, and a cover plate, the buckler and ventilative mouthful, the motor sets up in the top center department of centrifugal pump main part, buckler seal welded mounting is in the top terminal surface department of centrifugal pump main part, ventilative mouthful is seted up in the inner wall to outside terminal surface department of buckler, the thread groove has been seted up to the top terminal surface department of buckler, the roof is installed to the inner wall department screw thread of thread groove, the bottom terminal surface department of roof is provided with the go-between, through the thread groove, the roof, the seal groove, the sealing strip, the setting of mounting groove and closing plate, can make the closing plate slide in seal groove department, be convenient for like this control the opening or the closure of ventilative mouthful, utilize its go-between simultaneously, the closing plate, the setting of spring and connecting plate, can exert the offset to closing plate and connecting plate, be convenient for like this guarantee the waterproof separation effect of its closing plate.

Description

Multistage centrifugal pump suitable for many occasions

Technical Field

The utility model relates to a centrifugal pump technical field, more specifically say, relate to a multistage centrifugal pump suitable for many occasions.

Background

The multistage centrifugal pump is a combination of more than two centrifugal pumps with the same function, and is applied to the transportation of industrial liquid, urban water supply and drainage, pressurized water supply of high-rise buildings, garden irrigation, fire fighting pressurization, remote water supply, heating, cold and hot circulating pressurization of bathrooms and the like, supporting facilities and the like.

Based on the above description, and a search was made for an application with the number: the utility model discloses a CN201921889127.8 patent, which relates to a vertical multi-stage centrifugal pump, comprising a pump body and a second threaded hole, wherein the top end of the pump body is provided with an inverted buckle motor; one side that the water inlet end cover was kept away from to pump body bottom is equipped with the mounting hole, and through the retrieval discovery, mainly realize the waterproof work to the centrifugal pump motor through setting up the waterproof protective housing of motor.

Through research and analysis and long-time research and experiments carried out by the applicant in the field, the vertical type multistage centrifugal pump has the following problems in practical use, firstly, the waterproof protective shell is a sealed whole and is not provided with a ventilation port, so that the vertical type multistage centrifugal pump can only be used in an underwater environment, and when the centrifugal pump needs to be used in an external ground environment, the waterproof protective shell cannot dissipate heat and ventilate, so that the multistage centrifugal pump suitable for multiple occasions is needed on the basis of the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses aim at solving when the multistage centrifugal pump need be under water or when external environment operation, through its device, can seal or open the processing to the ventilative mouthful of waterproof protective housing department to make this centrifugal pump can use in multiple occasion.

(II) technical scheme

The utility model provides a multistage centrifugal pump suitable for many occasions, including the centrifugal pump main part, including a motor, a waterproof cover and a ventilation port, the motor is arranged at the top center of the centrifugal pump main part, the waterproof cover is sealed and welded and installed at the top end face of the centrifugal pump main part, the ventilation port is opened at the inner wall of the waterproof cover to the outer end face, the top end face of the waterproof cover is provided with a thread groove, the inner wall of the thread groove is provided with a top plate in a threaded manner, the bottom end face of the top plate is provided with a connecting ring, the outer direction and the center end face of the bottom end face of the thread groove are respectively provided with a sealing groove and a slotting groove, wherein the lower end of the sealing groove extends to the inner wall area of the waterproof cover, the sealing groove and the ventilation port are mutually communicated, the lower end of the slotting penetrates through the inner top end face of the waterproof cover, the inner wall of the sealing groove is fixedly provided with a sealing strip, the inner side end face of the sealing strip is provided with a mounting groove, the inside block of mounting groove installs the closing plate, and the inboard department of closing plate is provided with and supports tight subassembly.

Preferably, the abutting assembly comprises a spring and a connecting plate, wherein the spring is arranged at the end face of the inner side of the sealing plate, and the connecting plate is connected with the other end of the spring.

Preferably, the sealing groove, the sealing strip, the mounting groove, the sealing plate and the connecting plate are all arc-shaped structures.

Preferably, the sealing plate is arranged in a concave shape and the connection plate is arranged in a convex shape.

Preferably, the mounting groove is matched with the sealing plate and the connecting plate.

Preferably, the sealing strip is made of a rubber material.

Preferably, the top plate is of a disc-shaped structure, the connecting ring is located at the outer side position of the end face of the bottom of the top plate, and the connecting ring is provided with a colloid sealing gasket.

Preferably, the top plate is a thumbtack-like arrangement.

Has the advantages that:

1. the multistage centrifugal pump suitable for many occasions is provided with thread groove, roof, seal groove, sealing strip, mounting groove and closing plate, can be so that the closing plate slides in seal groove department, is convenient for like this control ventilating mouthful open or closed.

2. The multistage centrifugal pump suitable for multiple occasions is provided with the connecting ring, the sealing plate, the spring and the connecting plate, and can apply a resisting force to the sealing plate and the connecting plate, so that the waterproof and blocking effects of the sealing plate are guaranteed conveniently.

Description of the drawings:

fig. 1 is a schematic front sectional view of the multi-stage centrifugal pump suitable for multiple occasions.

Fig. 2 is an enlarged schematic view at a in fig. 1 of a multistage centrifugal pump suitable for use in a plurality of applications.

Fig. 3 is a schematic sectional view of a top view of the waterproof cover of the present invention.

Fig. 4 is a partially enlarged schematic view of a multi-stage centrifugal pump suitable for multiple applications, shown at B in fig. 3.

Fig. 5 is a schematic top view of the sealing plate and the connecting plate of the present invention.

Fig. 6 is a schematic side view of the sealing strip of the present invention.

In FIGS. 1-6: 1-a centrifugal pump body; 101-a motor; 2-a waterproof cover; 201-ventilating port; 202-thread groove; 2021-top plate; 2022-connecting ring; 203-sealing groove; 2031-sealing strip; 2032-mounting groove; 204-sealing plate; 2041-spring; 2042-connecting plate; 205-slotting.

Detailed Description

As shown in figures 1 to 6: the utility model provides a technical scheme, a multistage centrifugal pump suitable for many occasions, including centrifugal pump main part 1, motor 101, buckler 2 and ventilative mouth 201, motor 101 sets up in the top center department of centrifugal pump main part 1, buckler 2 seal welding installs in the top terminal surface department of centrifugal pump main part 1, ventilative mouth 201 sets up in the inner wall of buckler 2 to outside terminal surface department, the top terminal surface department of buckler 2 has seted up thread groove 202, the inner wall department screw thread of thread groove 202 installs roof 2021, the bottom terminal surface department of roof 2021 is provided with go-between 2022, outside direction department and the center terminal surface department of the terminal surface of thread groove 202 are equally divided and are seted up seal groove 203 and fluting 205, wherein the lower extreme of seal groove 203 extends to the inner wall region of buckler 2, and seal groove 203 and ventilative mouth 201 all link up the setting each other, and the lower extreme of fluting 205 then runs through in the inside top terminal surface of buckler 2, the inner wall of the sealing groove 203 is fixedly provided with a sealing strip 2031, the inner side end face of the sealing strip 2031 is provided with a mounting groove 2032, the inside of the mounting groove 2032 is clamped with a sealing plate 204, the inner side end face of the sealing plate 204 is provided with a spring 2041, and one end of the spring 2041 is provided with a connecting plate 2042.

When the centrifugal pump is underwater or outside, the sealing plate 204 can slide at the sealing groove 203 through the arrangement of the thread groove 202, the top plate 2021, the sealing groove 203, the sealing strip 2031, the mounting groove 2032 and the sealing plate 2031, so that the opening or closing of the ventilation port 201 is conveniently controlled, when the centrifugal pump needs underwater operation, only the sealing plate 204 needs to be moved to the sealing groove 203, then the lower end face of the sealing plate 204 is clamped into the mounting groove 2032, after the clamping, downward pressure is continuously applied to the sealing plate 204, so that the sealing plate 204 can be completely clamped into the mounting groove 2032, and because the sealing strip 2031 is arranged by a glue material, when the sealing plate 204 slides at the mounting groove 2032, the sealing strip 2031 can be in frictional contact, in the contact process, the blocking operation of the outside water body is convenient, and the arrangement of the top plate 2021 and the thread groove 202, the top end face of the sealing plate 204 can be pressed, the top end area of the waterproof cover 2 can be subjected to waterproof treatment, when the centrifugal pump operates outside, only the top plate 2021 needs to be rotated anticlockwise, then the sealing plate 204 is taken out from the mounting groove 2032, after the heat in the waterproof cover 2 can be dissipated from the ventilation port 201, meanwhile, by means of the arrangement of the connecting ring 2022, the sealing plate 204, the spring 2041 and the connecting plate 2042, the sealing plate 204 and the connecting plate 2042 can be exerted with a resisting force, so that the waterproof and blocking effects of the sealing plate 204 are ensured, because the springs 2041 are arranged at the sealing plate 204 and the connecting plate 2042, when the sealing plate 204 and the connecting plate 2042 are forcibly clamped at the inner wall end face of the mounting groove 2032 in a compression mode, the elasticity of the springs 2041 can exert pressure on the sealing plate 204 and the connecting plate 2042, so that the sealing plate 204 and the connecting plate 2042 can be abutted at the mounting groove 2032 and the sealing strip 2031, at the in-process of supporting, just can ensure the waterproof separation effect to the water, and the setting of go-between 2022 then can shelter from the junction of roof 2021 and buckler 2, can reduce the probability that the water permeates to the thread groove 202 region like this to just also can ensure the sealed water-proof effects of its buckler 2.

The working principle is as follows:

through the arrangement of the thread groove 202, the top plate 2021, the sealing groove 203, the sealing strip 2031, the mounting groove 2032 and the sealing plate 2031, the sealing plate 204 can slide at the sealing groove 203, so that the opening or closing of the ventilation port 201 can be controlled, and through the arrangement of the thread groove 202, the top plate 2021, the sealing groove 203, the sealing strip 2031, the mounting groove 2032 and the sealing plate 2031, the sealing plate 204 can slide at the sealing groove 203, so that the opening or closing of the ventilation port 201 can be controlled.

Claims

1. The utility model provides a multistage centrifugal pump suitable for many occasions, includes centrifugal pump main part (1), motor (101), buckler (2) and ventilative mouthful (201), motor (101) set up in the top center department of centrifugal pump main part (1), and buckler (2) seal weld installs in the top terminal surface department of centrifugal pump main part (1), and the inner wall to the outside terminal surface department of buckler (2) is seted up in ventilative mouthful (201), its characterized in that: a thread groove (202) is arranged on the top end face of the waterproof cover (2), a top plate (2021) is arranged on the inner wall of the thread groove (202) in a threaded manner, a connecting ring (2022) is arranged on the bottom end face of the top plate (2021), a sealing groove (203) and a slot (205) are respectively arranged at the outer side direction and the central end surface of the bottom end surface of the thread groove (202), wherein the lower end of the sealing groove (203) extends to the inner wall area of the waterproof cover (2), and seal groove (203) and ventilative mouthful (201) all link up the setting each other, and the lower extreme of fluting (205) then runs through in the inside top end face of buckler (2), and the inner wall department of seal groove (203) is fixed to be provided with sealing strip (2031), and mounting groove (2032) have been seted up to the medial surface department of sealing strip (2031), and closing plate (204) are installed to the inside block of mounting groove (2032), and the inboard department of closing plate (204) is provided with and supports tight subassembly.

2. A multi-stage centrifugal pump adapted for multiple applications according to claim 1, wherein: the abutting component comprises a spring (2041) and a connecting plate (2042), wherein the spring (2041) is arranged at the end face of the inner side of the sealing plate (204), the connecting plate (2042) is connected with the other end of the spring (2041), and the connecting plate (2042) is of an arc plate-shaped structure.

3. A multi-stage centrifugal pump adapted for multiple applications according to claim 1, wherein: the sealing groove (203), the sealing strip (2031), the mounting groove (2032) and the sealing plate (204) are all arc-shaped structures.

4. A multi-stage centrifugal pump adapted for multiple applications according to claim 2, wherein: the sealing plate (204) is concave and the connecting plate (2042) is convex.

5. A multi-stage centrifugal pump adapted for multiple applications according to claim 1, wherein: the mounting groove (2032) is matched with the sealing plate (204) and the connecting plate (2042) mutually.

6. A multi-stage centrifugal pump adapted for multiple applications according to any one of claims 1 or 3, wherein: the sealing strip (2031) is made of colloid material.

7. A multi-stage centrifugal pump adapted for multiple applications according to claim 1, wherein: the top plate (2021) is of a disc-shaped structure, the connecting ring (2022) is located at the outer side position of the end face of the bottom of the top plate (2021), and a colloid sealing gasket is arranged at the connecting ring (2022).

8. A multi-stage centrifugal pump adapted for multiple applications according to any one of claims 1 or 7, wherein: the top plate (2021) is arranged in a drawing pin shape.