CN210317885U

CN210317885U - Sealing device for centrifugal pump

Info

Publication number: CN210317885U
Application number: CN201921049444.9U
Authority: CN
Inventors: 滕止戈
Original assignee: Fristam Pumps Taicang Co ltd
Current assignee: Fristam Pumps Taicang Co ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-14
Anticipated expiration: 2029-07-08

Abstract

The utility model belongs to the sealing device field, especially, a sealing device for centrifugal pump, the leakproofness is relatively poor when being connected with the pipeline to current centrifugal pump, leads to the centrifugal pump to take place the phenomenon problem of leaking with the junction of pipeline easily, the scheme as follows now is proposed, and it includes the pump body, the mounting hole has been seted up to one side of the pump body, is equipped with the water pipe in the mounting hole, and the outside fixed cover of water pipe is equipped with the screw rod, is provided with the screw thread in the mounting hole, screw rod and screw thread threaded connection, and the fixed cover in the outside of water pipe is equipped with the lagging, has all seted up the spout on the top inner wall of mounting hole and the bottom inner wall, and slidable mounting has the slide in the spout, has seted up two equal side channels that communicate mutually with the mounting hole on the inner wall of one side of the. The utility model discloses the practicality is good, has guaranteed water pipe and pump body connection's leakproofness, prevents the emergence of the phenomenon of leaking.

Description

Sealing device for centrifugal pump

Technical Field

The utility model relates to a sealing device technical field especially relates to a sealing device for 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 the sealing performance of the existing centrifugal pump is poor when the centrifugal pump is connected with a pipeline, so that the water leakage phenomenon easily occurs at the joint of the centrifugal pump and the pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the sealing performance of the centrifugal pump is poor when being connected with the pipeline in the prior art, leading to the leakage phenomenon shortcoming of the junction of the centrifugal pump and the pipeline, and providing a sealing device for the centrifugal pump.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sealing device for a centrifugal pump comprises a pump body, wherein one side of the pump body is provided with a mounting hole, a water pipe is arranged in the mounting hole, the outer side of the water pipe is fixedly sleeved with a screw rod, a thread is arranged in the mounting hole, the screw rod is in threaded connection with the thread, the outer side of the water pipe is fixedly sleeved with a sleeve plate, the top inner wall and the bottom inner wall of the mounting hole are respectively provided with a sliding groove, the sliding groove is internally and slidably provided with a sliding plate, the inner wall of one side of the pump body is provided with two side grooves which are communicated with the mounting hole, the side grooves are internally and slidably provided with clamping plates, one side of each side groove, which is far away from the corresponding side groove, is welded with a stand column, one side of each clamping plate, which is far away from the corresponding side groove, is slidably arranged in the stand column groove, one side of each clamping plate, a first triangular plate and a second triangular plate are respectively welded on one sides of the first plate and the second plate, which are close to each other.

Preferably, the inclined surface of the first triangular plate is in contact with the inclined surface of the second triangular plate.

Preferably, one end of the first spring is welded to one side of the sliding plate, and the other end of the first spring is welded to the inner wall of one side of the sliding groove, so that the sliding plate can return to the original position.

Preferably, the second springs are welded on one sides, away from each other, of the two clamping plates, the second spring sleeves the outer side of the stand column, and one ends, away from each other, of the two second springs are welded on the inner wall, away from each other, of one side of the two side grooves respectively, so that the clamping plates can be restored to the original positions.

Preferably, the sides of the slide plate and the strap are in contact with each other.

Preferably, both arc-shaped sealing sleeves are in close contact with the water pipe.

In the utility model, the sealing device for the centrifugal pump is easy to leak at the joint of the centrifugal pump and the pipeline because the sealing performance of the existing centrifugal pump is poor when the centrifugal pump is connected with the pipeline, consequently, first set-square, the second set-square, first board, the second board, the stand, the cardboard, first spring, second spring and arc seal cover, the rotation screw rod, screw rod and screw thread threaded connection, it transversely rotates and removes to drive the water pipe, the lagging extrusion slide removes, the slide is tensile to first spring, the slide drives first board and removes, first set-square drives the second set-square and removes, the second board moves the cardboard and removes, the cardboard is tensile to the second spring, two cardboards drive the arc seal cover and remove, two cardboards seal the mounting hole, two inseparable and water pipe contacts of arc seal cover simultaneously.

The utility model discloses the practicality is good, has guaranteed water pipe and pump body connection's leakproofness, prevents the emergence of the phenomenon of leaking.

Drawings

Fig. 1 is a schematic structural diagram of a sealing device for a centrifugal pump according to the present invention;

fig. 2 is a schematic structural diagram of a portion a of a sealing device for a centrifugal pump according to the present invention;

fig. 3 is a schematic side view of the sealing device for a centrifugal pump according to the present invention with two clamping plates connected.

In the figure: the

pump body

1, 2 mounting holes, 3 water pipes, 4 screws, 5 sleeve plates, 6 sliding plates, 7 first springs, 8 side grooves, 9 clamping plates, 10 columns, 11 column grooves, 12 second springs, 13 arc-shaped grooves, 14 arc-shaped sealing sleeves, 15 first plates, 16 second plates, 17 first triangular plates, 18 second triangular plates and 19 sliding grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a sealing device for a centrifugal pump comprises a pump body 1, a mounting hole 2 is formed in one side of the pump body 1, a water pipe 3 is arranged in the mounting hole 2, a screw rod 4 is fixedly sleeved on the outer side of the water pipe 3, a thread is arranged in the mounting hole 2, the screw rod 4 is in threaded connection with the thread, a sleeve plate 5 is fixedly sleeved on the outer side of the water pipe 3, sliding grooves 19 are respectively formed in the inner wall of the top and the inner wall of the bottom of the mounting hole 2, a sliding plate 6 is slidably mounted in the sliding grooves 19, two side grooves 8 which are communicated with the mounting hole 2 are formed in the inner wall of one side of the pump body 1, clamping plates 9 are slidably mounted in the side grooves 8, stand columns 10 are welded on the inner walls of the sides, far away from each other, stand column grooves 11 are respectively formed in the sides, the stand columns 10 are slidably mounted in, an arc-shaped sealing sleeve 14 is fixedly connected to the inner wall of the arc-shaped groove 13, a first plate 15 and a second plate 16 are fixedly mounted on one sides, close to each other, of the sliding plate 6 and the clamping plate 9 respectively, and a first triangular plate 17 and a second triangular plate 18 are welded on one sides, close to each other, of the first plate 15 and the second plate 16 respectively.

In the present invention, the inclined plane of the first set square 17 contacts the inclined plane of the second set square 18.

The utility model discloses in, one side welding of slide 6 has the one end of first spring 7, and the other end of first spring 7 welds on one side inner wall of spout 19.

The utility model discloses in, two cardboard 9 one sides of keeping away from each other all weld have second spring 12, and the outside at stand 10 is established to second spring 12 cover, and the one end that two second springs 12 kept away from each other welds respectively on the one side inner wall of keeping away from each other of two side channels 8.

In the utility model, the slide 6 and the strap 5 are contacted with each other.

The utility model discloses in, two arc seal cover 14 all with water pipe 3 in close contact with.

Example two

Referring to fig. 1-3, a sealing device for a centrifugal pump comprises a pump body 1, a mounting hole 2 is formed in one side of the pump body 1, a water pipe 3 is arranged in the mounting hole 2, a screw rod 4 is fixedly sleeved on the outer side of the water pipe 3, a thread is arranged in the mounting hole 2, the screw rod 4 is in threaded connection with the thread, a sleeve plate 5 is fixedly sleeved on the outer side of the water pipe 3, sliding grooves 19 are respectively formed in the inner wall of the top and the inner wall of the bottom of the mounting hole 2, a sliding plate 6 is slidably mounted in the sliding grooves 19, two side grooves 8 which are communicated with the mounting hole 2 are formed in the inner wall of one side of the pump body 1, clamping plates 9 are slidably mounted in the side grooves 8, stand columns 10 are welded on the inner walls of the sides, far away from each other, stand column grooves 11 are respectively formed in the sides, the stand columns 10 are slidably mounted in, an arc-shaped sealing sleeve 14 is fixedly connected to the inner wall of the arc-shaped groove 13, a first plate 15 and a second plate 16 are fixedly mounted on one sides, close to each other, of the sliding plate 6 and the clamping plate 9 respectively through bolts, and a first triangular plate 17 and a second triangular plate 18 are welded on one sides, close to each other, of the first plate 15 and the second plate 16 respectively.

The utility model discloses in, one side welding of slide 6 has the one end of first spring 7, and the other end of first spring 7 welds on one side inner wall of spout 19, can make slide 6 answer the normal position.

The utility model discloses in, two cardboard 9 one sides of keeping away from each other all weld have second spring 12, and second spring 12 cover is established in the outside of stand 10, and the one end that two second springs 12 kept away from each other welds respectively on the one side inner wall of keeping away from each other of two side channels 8, can make cardboard 9 answer the normal position.

In the utility model, in use, the water pipe 3 is inserted into the mounting hole 2, the screw rod 4 is rotated, the screw rod 4 is connected with the thread to drive the water pipe 3 to rotate and move transversely, the water pipe 3 drives the sleeve plate 5 to move, the sleeve plate 5 extrudes the sliding plate 6 to move, the sliding plate 6 stretches the first spring 7, the sliding plate 6 drives the first plate 15 to move, the first plate 15 drives the first triangle plate 17 to move, the first triangle plate 17 extrudes the second triangle plate 18 to drive the second triangle plate 18 to move, the second triangle plate 18 drives the second plate 16 to move, the second plate 16 drives the clamping plate 9 to move, the clamping plate 9 stretches the second spring 12, the two clamping plates 9 drive the arc-shaped sealing sleeves 14 to move, the two clamping plates 9 seal the mounting hole 2, meanwhile, the two arc-shaped sealing sleeves 14 are tightly contacted with the water pipe 3, so that the sealing performance of the connection between the water pipe 3 and the pump body 1 is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sealing device for a centrifugal pump comprises a pump body (1) and is characterized in that one side of the pump body (1) is provided with a mounting hole (2), a water pipe (3) is arranged in the mounting hole (2), a screw rod (4) is fixedly sleeved on the outer side of the water pipe (3), threads are arranged in the mounting hole (2), the screw rod (4) is in threaded connection with the threads, a sleeve plate (5) is fixedly sleeved on the outer side of the water pipe (3), sliding grooves (19) are respectively formed in the inner walls of the top and the bottom of the mounting hole (2), a sliding plate (6) is slidably arranged in the sliding grooves (19), two side grooves (8) which are respectively communicated with the mounting hole (2) are formed in the inner wall of one side of the pump body (1), clamping plates (9) are slidably arranged in the side grooves (8), stand columns (10) are respectively welded on the inner walls of one side, far away from each other, and stand column grooves (, stand (10) slidable mounting has all seted up arc wall (13) in stand groove (11), one side that two cardboard (9) are close to each other, fixedly connected with arc seal cover (14) on the inner wall of arc wall (13), one side that slide (6) and cardboard (9) are close to each other is fixed mounting respectively has first board (15) and second board (16), first set-square (17) and second set-square (18) have been welded respectively to one side that first board (15) and second board (16) are close to each other.

2. Sealing means for a centrifugal pump according to claim 1, characterized in that the inclined surface of the first triangular plate (17) is in contact with the inclined surface of the second triangular plate (18).

3. Sealing device for centrifugal pump according to claim 1, characterized in that one end of the first spring (7) is welded to one side of the sliding plate (6) and the other end of the first spring (7) is welded to one side of the inner wall of the sliding groove (19).

4. The sealing device for the centrifugal pump according to claim 1, wherein the second springs (12) are welded on the sides of the two clamping plates (9) far away from each other, the second springs (12) are sleeved on the outer sides of the upright posts (10), and the ends of the two second springs (12) far away from each other are respectively welded on the inner walls of the sides of the two side grooves (8) far away from each other.

5. A sealing arrangement for a centrifugal pump according to claim 1, characterized in that the sides of the slide plate (6) and the casing plate (5) which are adjacent to each other are in contact.

6. Sealing device for centrifugal pumps according to claim 1, characterized in that both arc-shaped sealing sleeves (14) are in close contact with the water pipe (3).