CN213360578U

CN213360578U - Clamping device for sealing centrifugal pump

Info

Publication number: CN213360578U
Application number: CN202022312297.9U
Authority: CN
Inventors: 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-04
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a clamping device is used in centrifugal pump seal, inlet tube on centrifugal pump and the centrifugal pump, the thread bush is equipped with first connecting pipe on the inlet tube, and the one end intercommunication that the centrifugal pump was kept away from to first connecting pipe is fixed with the hose, and the one end intercommunication that the centrifugal pump was kept away from to the hose is fixed with the second connecting pipe, and the one end that the centrifugal pump was kept away from to the second connecting pipe is equipped with the water pipe, has all seted up the ring channel on the lateral wall of second connecting pipe and water pipe, and one side inner wall that two ring channels are close to each other all sets up to the opening, and. The utility model discloses simple structure, convenient operation is convenient for extrude the sealing washer when the elasticity is not enough to appear becoming flexible for a long time at the sealing washer according to the leakproofness that actually improves second connecting pipe and water piping connection, is convenient for use, guarantees the leakproofness, and is convenient for install and dismantle first connecting pipe, is favorable to using.

Description

Clamping device for sealing centrifugal pump

Technical Field

The utility model relates to a clamping equipment technical field especially relates to a centrifugal pump is clamping device for sealing.

Background

The centrifugal pump is a high-speed centrifugal pump for providing high lift and high outlet pressure, and a cylindrical multistage centrifugal pump and a partial flow pump are mostly applied in production, wherein the structure of the centrifugal pump is similar to that of a common multistage pump; the latter makes most liquid make high-speed rotation in the annular channel of the pump body, only a small amount of liquid flows out, relative velocity is little, the resistance loss is little, it is high to produce the lift, after the centrifugal pump is made, need carry out the capability test to the centrifugal pump, need communicate with the water pipe of test system with the inlet tube of centrifugal pump, traditional flange and the bolt and the inlet tube flange fixed connection that lead to the water pipe, then carry out centrifugal pump capability test, but the current water pipe that leads to the fact the bolt to rust easily through flange and bolt to be linked together with the water pipe of test system with the inlet tube of centrifugal pump, make follow-up be not convenient for load and unload, can't satisfy the user demand, therefore we have proposed a centrifugal pump and sealed and used the clamping device to solve the.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a clamping device for sealing a centrifugal pump.

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

a clamping device for sealing a centrifugal pump comprises the centrifugal pump and a water inlet pipe on the centrifugal pump, wherein a first connecting pipe is sleeved on the water inlet pipe in a threaded manner, one end of the first connecting pipe, which is far away from the centrifugal pump, is communicated and fixed with a hose, one end of the hose, which is far away from the centrifugal pump, is communicated and fixed with a second connecting pipe, one end of the second connecting pipe, which is far away from the centrifugal pump, is provided with a water pipe, annular grooves are formed in the side walls of the second connecting pipe and the water pipe, one inner wall, which is close to each other, of each annular groove is provided with an opening, a sealing ring is fixedly sleeved in one annular groove of the two annular grooves, one side, which is far away from the centrifugal pump, of the sealing ring extends into the other annular groove and is in movable contact with one inner wall, the second connecting pipe is fixedly sleeved with a first fixed pipe, the water pipe is sleeved with a second fixed pipe, one end of the first fixed pipe, which is far away from the centrifugal pump, is fixedly provided with a cross rod, the second fixed pipe is slidably sleeved on the cross rod, one end of the first fixed pipe, which is far away from the centrifugal pump, is provided with a groove, two vertical rods are fixedly arranged between the top inner wall and the bottom inner wall of the groove, two vertical rods are slidably sleeved with the same moving rod, the same spring is fixedly arranged between the bottom of the moving rod and the bottom inner wall of the groove, one end of the moving rod extends out of the first fixed pipe and is fixedly provided with a clamping rod, the top of the second fixed pipe is provided with a plurality of clamping grooves, the bottom ends of the clamping rods extend into one of the clamping grooves and are arranged into a conical structure, the clamping rods are clamped with one of the clamping grooves, the top of the moving rod is fixedly provided with a U, the top of the movable rod is embedded with a second magnet, and the first magnet is matched with the second magnet.

Preferably, the outer side of the water inlet pipe is provided with a first external thread, the inner side of the first connecting pipe is provided with a first internal thread, and the first external thread is meshed with the first internal thread.

Preferably, the outer side of the water pipe is provided with a second external thread, the inner side of the second fixing pipe is provided with a second internal thread, and the second internal thread is meshed with the second external thread.

Preferably, a first rectangular hole is formed in one end of the second fixing pipe, and the outer side of the cross rod is in movable contact with the side wall of the first rectangular hole.

Preferably, two second rectangular holes are formed in the top of the moving rod, and the side walls of the second rectangular holes are in sliding connection with the outer sides of the corresponding vertical rods.

Preferably, the outer side of the clamping rod is movably connected with the side wall of one of the clamping grooves.

Preferably, the first magnet and the second magnet are in contact with each other with an attractive force greater than an elastic force of the spring.

Compared with the prior art, the beneficial effects of the utility model are that:

through the arrangement of the centrifugal pump, the water inlet pipe, the first connecting pipe, the hose, the second connecting pipe, the water pipe, the cross rod, the sealing ring, the first fixing pipe, the second fixing pipe, the groove, the vertical rods, the moving rod, the spring, the clamping rod and the clamping groove which are matched, at the moment, the second connecting pipe is separated from the water pipe, when the second connecting pipe needs to be communicated with the water pipe, the U-shaped handle is pulled upwards to drive the moving rod to slide on the two vertical rods and stretch the spring, when the moving rod drives the second magnet to be adsorbed with the first magnet, the cross rod is aligned with the first rectangular hole, the second connecting pipe is moved towards the direction close to the water pipe to drive the hose to move, the second connecting pipe drives the cross rod to move into the first rectangular hole through the first fixing pipe, the second connecting pipe drives the sealing ring to move into the other annular groove, the clamping rod is aligned with one of the plurality of clamping grooves, make the carriage release lever drive the draw-in groove in draw-in groove and a plurality of draw-in grooves clamp mutually, the second connecting pipe is fixed, sealed effect has been reached, when the not enough not hard up phenomenon of elasticity appears in the long-time use of sealing washer, upwards stimulate U-shaped handle with the principle, make draw-in groove phase separation in draw-in groove and a plurality of draw-in grooves, continue the reverse movement to keeping away from the centrifugal pump with the principle, make another draw-in groove in draw-in groove of draw-in lever and a plurality of draw-in grooves align, stimulate U-shaped handle downwards, make the draw-in lever clamp with another draw-in groove mutually, the sealing washer is extruded fixedly, guarantee the leakproofness.

The utility model discloses simple structure, convenient operation is convenient for extrude the sealing washer when the elasticity is not enough to appear becoming flexible for a long time at the sealing washer according to the leakproofness that actually improves second connecting pipe and water piping connection, is convenient for use, guarantees the leakproofness, and is convenient for install and dismantle first connecting pipe, is favorable to using.

Drawings

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

FIG. 2 is a schematic cross-sectional view of portion A of FIG. 1;

fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

In the figure: the device comprises a centrifugal pump 1, a water inlet pipe 2, a first connecting pipe 3, a hose 4, a second connecting pipe 5, a water pipe 6, a cross rod 7, a sealing ring 8, a first fixing pipe 9, a second fixing pipe 10, a groove 11, a vertical rod 12, a movable rod 13, a spring 14, a clamping rod 15 and a clamping groove 16.

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.

Referring to fig. 1-3, a clamping device for centrifugal pump sealing comprises a centrifugal pump 1 and a water inlet pipe 2 on the centrifugal pump 1, a first connecting pipe 3 is sleeved on the water inlet pipe 2 in a threaded manner, one end of the first connecting pipe 3, which is far away from the centrifugal pump 1, is communicated and fixed with a hose 4, one end of the hose 4, which is far away from the centrifugal pump 1, is communicated and fixed with a second connecting pipe 5, one end of the second connecting pipe 5, which is far away from the centrifugal pump 1, is provided with a water pipe 6, the side walls of the second connecting pipe 5 and the water pipe 6 are both provided with annular grooves, the inner wall of one side, which is close to each other, of the two annular grooves is both provided with an opening, a sealing ring 8 is fixedly sleeved in one of the two annular grooves, one side, which is far away from the centrifugal pump 1, one side of each of the two rubber rings is in movable contact with one side of each other, the sealing ring 8 is positioned in the two rubber rings, the second connecting pipe 5 is fixedly sleeved with the first fixing pipe 9, the water pipe 6 is sleeved with the second fixing pipe 10, one end of the first fixing pipe 9, which is far away from the centrifugal pump 1, is fixedly provided with the cross rod 7, the second fixing pipe 10 is slidably sleeved on the cross rod 7, one end of the first fixing pipe 9, which is far away from the centrifugal pump 1, is provided with the groove 11, two vertical rods 12 are fixedly arranged between the inner walls of the top and the bottom of the groove 11, the two vertical rods 12 are slidably sleeved with the same moving rod 13, the same spring 14 is fixedly arranged between the bottom of the moving rod 13 and the inner wall of the bottom of the groove 11, one end of the moving rod 13 extends out of the first fixing pipe 9 and is fixedly provided with the clamping rod 15, and, card pole 15 clamps with a draw-in groove 16 among a plurality of draw-in grooves 16 mutually, and a plurality of draw-in grooves 16 have been seted up at the top of the fixed pipe 10 of second, and the top fixed mounting of carriage release lever 13 has the U-shaped handle, inlays on recess 11's the top inner wall and is equipped with first magnet, and the top of carriage release lever 13 is inlayed and is equipped with second magnet, and first magnet cooperatees with second magnet, the utility model discloses simple structure, convenient operation are convenient for according to the leakproofness that actually improves second connecting pipe 5 and water pipe 6 and are connected, are convenient for extrude sealing washer 8 when sealing washer 8 uses elasticity not enough to appear becoming flexible for a long time, guarantee the leakproofness, and be convenient for install and dismantle first connecting pipe 3, are favorable to using.

In the utility model, the outer side of the water inlet pipe 2 is provided with a first external thread, the inner side of the first connecting pipe 3 is provided with a first internal thread, the first external thread is meshed with the first internal thread, the outer side of the water pipe 6 is provided with a second external thread, the inner side of the second fixed pipe 10 is provided with a second internal thread, the second internal thread is meshed with the second external thread, one end of the second fixed pipe 10 is provided with a first rectangular hole, the outer side of the cross rod 7 is movably contacted with the side wall of the first rectangular hole, the top of the movable rod 13 is provided with two second rectangular holes, the side wall of the second rectangular hole is connected with the outer side of the corresponding vertical rod 12 in a sliding way, the outer side of the clamping rod 15 is movably connected with the side wall of one clamping groove 16 in a plurality of clamping grooves 16, the adsorption force when the first magnet is contacted with the second magnet is larger than the elastic force of the spring 14, the utility model has simple structure and convenient operation, and, be convenient for use elasticity not enough for a long time at sealing washer 8 and extrude sealing washer 8 when becoming flexible, guarantee the leakproofness, and be convenient for install and dismantle first connecting pipe 3, be favorable to the use.

The working principle is as follows: when the device is used, at the moment, the second connecting pipe 5 is separated from the water pipe 6, when the second connecting pipe 5 needs to be communicated with the water pipe 6, the U-shaped handle is pulled upwards, the U-shaped handle drives the movable rod 13 to move upwards, the movable rod 13 slides on the two vertical rods 12, the movable rod 13 stretches the spring 14 in the moving process, the movable rod 13 drives the second magnet to move upwards, when the second magnet is adsorbed to the first magnet, the cross rod 7 is aligned with the first rectangular hole, the second connecting pipe 5 is moved towards the direction close to the water pipe 6, the second connecting pipe 5 drives the hose 4 to move, the second connecting pipe 5 drives the first fixed pipe 9 to move, the first fixed pipe 9 drives the cross rod 7 to move into the first rectangular hole, the second connecting pipe 5 drives the sealing ring 8 to move, the sealing ring 8 moves into the other annular groove, the second connecting pipe 5 continues to move and extrudes the sealing ring 8, under extrusion force, the sealing ring 8 is pressed, the second connecting pipe 5 drives one rubber ring to move, one side, away from the centrifugal pump 1, of one rubber ring is in close contact with one side, close to the centrifugal pump 1, of the other rubber ring, at the moment, the clamping rod 15 is aligned with one of the clamping grooves 16, the U-shaped handle is pulled downwards, the moving rod 13 moves downwards, the moving rod 13 drives the clamping rod 15 to move downwards, the clamping rod 15 is clamped with one of the clamping grooves 16, and the second connecting pipe 5 is fixed, so that a sealing effect is achieved;

when the sealing ring 8 is not enough to be loosened due to insufficient elasticity after long-time use, the U-shaped handle is pulled upwards in the same way to separate the clamping rod 15 from one clamping groove 16 of the plurality of clamping grooves 16, the clamping rod 15 is continuously moved in the opposite direction away from the centrifugal pump 1 in the same way to align with the other clamping groove 16 of the plurality of clamping grooves 16, and the U-shaped handle is pulled downwards to clamp the clamping rod 15 with the other clamping groove 16, so that the sealing ring 8 is extruded when the sealing ring 8 is not enough to be loosened due to insufficient elasticity after long-time use, and the sealing property is ensured;

when needs are with inlet tube 2 and first connecting pipe 3 separation, upwards stimulate the U-shaped handle and make card pole 15 and a draw-in groove phase separation in a plurality of draw-in grooves 16, to the direction removal second connecting pipe 5 that is close to centrifugal pump 1 for horizontal pole 7 and first rectangular hole phase separation, the first connecting pipe 3 of antiport is followed closely, makes first connecting pipe 3 drop from inlet tube 2, and the fixed pipe 10 of antiport second simultaneously makes the fixed pipe 10 of second drop from water pipe 6.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

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. The clamping device for sealing the centrifugal pump comprises a centrifugal pump (1) and a water inlet pipe (2) on the centrifugal pump (1), and is characterized in that a first connecting pipe (3) is sleeved on the water inlet pipe (2) in a threaded manner, one end of the first connecting pipe (3), which is far away from the centrifugal pump (1), is communicated with and fixed with a hose (4), one end of the hose (4), which is far away from the centrifugal pump (1), is communicated with and fixed with a second connecting pipe (5), one end of the second connecting pipe (5), which is far away from the centrifugal pump (1), is provided with a water pipe (6), annular grooves are formed in the side walls of the second connecting pipe (5) and the water pipe (6), the inner walls of one sides, which are close to each other, of the two annular grooves are respectively provided with an opening, a sealing ring (8) is fixedly sleeved in one annular groove of the two annular grooves, one side, which is far away, the rubber rings are fixedly arranged at the ends, close to each other, of the second connecting pipe (5) and the water pipe (6), one side, close to each other, of the two rubber rings is in movable contact, the sealing ring (8) is positioned in the two rubber rings, the first fixing pipe (9) is fixedly sleeved on the second connecting pipe (5), the second fixing pipe (10) is sleeved on the water pipe (6), the cross rod (7) is fixedly arranged at the end, far away from the centrifugal pump (1), of the first fixing pipe (9), the second fixing pipe (10) is slidably sleeved on the cross rod (7), a groove (11) is formed in the end, far away from the centrifugal pump (1), of the first fixing pipe (9), two vertical rods (12) are fixedly arranged between the top inner wall and the bottom inner wall of the groove (11), the same moving rod (13) is slidably sleeved on the two vertical rods (12), and the same spring (14) is fixedly arranged between the bottom of the moving rod, one end of the moving rod (13) extends to the outside of the first fixed pipe (9) and is fixedly provided with a clamping rod (15), the top of the second fixed pipe (10) is provided with a plurality of clamping grooves (16), the bottom end of the clamping rod (15) extends into one clamping groove (16) in the plurality of clamping grooves (16) and is arranged into a conical structure, the clamping rod (15) is clamped with one clamping groove (16) in the plurality of clamping grooves (16), the top of the moving rod (13) is fixedly provided with a U-shaped handle, the inner wall of the top of the groove (11) is embedded with a first magnet, the top of the moving rod (13) is embedded with a second magnet, and the first magnet is matched with the second magnet.

2. A clamping device for centrifugal pump sealing according to claim 1, characterized in that the outer side of the inlet pipe (2) is provided with a first external thread, and the inner side of the first connecting pipe (3) is provided with a first internal thread, the first external thread engaging with the first internal thread.

3. A clamping device for centrifugal pump sealing according to claim 1, characterized in that the outside of the water pipe (6) is provided with a second external thread, and the inside of the second stationary pipe (10) is provided with a second internal thread, which engages with the second external thread.

4. The clamping device for centrifugal pump sealing as claimed in claim 1, wherein one end of the second fixed pipe (10) is provided with a first rectangular hole, and the outer side of the cross bar (7) is movably contacted with the side wall of the first rectangular hole.

5. The clamping device for centrifugal pump sealing as claimed in claim 1, wherein the top of the moving rod (13) is provided with two second rectangular holes, and the side walls of the second rectangular holes are slidably connected with the outer sides of the corresponding vertical rods (12).

6. The clamping device for centrifugal pump sealing as claimed in claim 1, wherein the outside of said catch lever (15) is movably connected to the side wall of one (16) of the plurality of catches (16).

7. The clamping device for centrifugal pump sealing as set forth in claim 1, wherein the attraction force when the first magnet and the second magnet are in contact is larger than the elastic force of the spring (14).