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CN-224200852-U - Leak-proof device for centrifugal pump

CN224200852UCN 224200852 UCN224200852 UCN 224200852UCN-224200852-U

Abstract

The utility model discloses a leakage-proof device for a centrifugal pump, which comprises a centrifugal pump, wherein a liquid inlet end of the centrifugal pump and a liquid outlet end of the centrifugal pump are fixedly connected with a fixing sleeve, one end of the inner side of the fixing sleeve is contacted with a positioning ring, one end of the positioning ring is fixedly connected with a connecting pipe, one end of the inner side of the positioning ring is contacted with a guide shaft, when the liquid inlet end and the liquid outlet end of the centrifugal pump are connected, the fixing ring is pushed to control the reciprocating motion of the fixing block by reciprocating, and the fixing block is clamped into the outer side of the positioning ring after the positioning ring is inserted into the fixing sleeve to squeeze a rubber pad, so that the liquid inlet end and the liquid outlet end of the centrifugal pump are connected, the phenomenon of loosening leakage under the vibration effect of the connection position can be prevented, the sealing effect of the device is ensured, and the positioning ring is pulled out from the fixing sleeve by pushing the fixing ring again, so that the disassembly during subsequent maintenance is convenient.

Inventors

  • CHEN LINTAO

Assignees

  • 交通运输部烟台打捞局

Dates

Publication Date
20260505
Application Date
20250415

Claims (5)

  1. 1. The leakage-proof device for the centrifugal pump comprises a centrifugal pump (1) and is characterized in that a liquid inlet end of the centrifugal pump (1) and a liquid outlet end of the centrifugal pump (1) are fixedly connected with a fixing sleeve (2), one end of the inner side of the fixing sleeve (2) is contacted with a positioning ring (3), one end of the positioning ring (3) is fixedly connected with a connecting pipe (4), one end of the inner side of the positioning ring (3) is contacted with a guide shaft (5), the guide shaft (5) is fixedly connected with the fixing sleeve (2), the other end of the positioning ring (3) is contacted with a sealing gasket (6) made of rubber, the guide shaft (5) penetrates through the sealing gasket (6), the sealing gasket (6) is contacted with the fixing sleeve (2) and the guide shaft (5), a clamping block (8) is connected with the fixing sleeve (2) in a clamping way, one end of the inner side of the clamping block (8) is contacted with a first spring (9), one end of the outer side of the clamping block (8) is fixedly connected with a limiting rod (11), the fixing sleeve (2) penetrates through the sealing sleeve (6), one end of the limiting rod (11) is contacted with the fixing sleeve (12), one end of the outer side of the guide block (12) is contacted with a fixed ring (13).
  2. 2. The leakage preventing device for centrifugal pump according to claim 1, wherein sealing rings (7) are closely contacted with both ends of the outer side of the positioning ring (3), the sealing rings (7) are closely contacted with the fixed sleeve (2), and the sealing rings (7) are made of rubber.
  3. 3. The leakage preventing device for centrifugal pump according to claim 1, wherein the other end of the first spring (9) is in contact with a threaded plug (10), and the threaded plug (10) is in screw connection with the fixed sleeve (2).
  4. 4. The leakage preventing device for a centrifugal pump according to claim 1, wherein the fixed ring (13) is in contact with the limit rod (11) and the centrifugal pump (1), the liquid inlet end of the centrifugal pump (1) and the liquid outlet end of the centrifugal pump (1) penetrate through the fixed ring (13), and the contact part of the guide block (12) and the fixed ring (13) is in an arc shape.
  5. 5. The leakage preventing device for a centrifugal pump according to claim 1, wherein one end of the sealing gasket (6) is contacted with a pressing ring (15), one end of the pressing ring (15) is contacted with a second spring (14), the other end of the second spring (14) is contacted with the fixed sleeve (2), the guide shaft (5) penetrates through the second spring (14) and the pressing ring (15), and the pressing ring (15) is contacted with the guide shaft (5).

Description

Leak-proof device for centrifugal pump Technical Field The utility model relates to the technical field of centrifugal pumps, in particular to a leakage-proof device for a centrifugal pump. Background The centrifugal pump is operated by utilizing the centrifugal motion of water generated by the rotation of the impeller, the pump shell and the water suction pipe are filled with water before the water pump is started, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation motion, the water is centrifugally moved and thrown to the outer edge of the impeller, and flows into the water pressing pipeline of the water pump through the runner of the volute pump shell. Disclosure of utility model The utility model solves the technical problems of the prior art, and can effectively solve the problems in the background art. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides a leak protection device for centrifugal pump, includes the centrifugal pump, the equal fixedly connected with fixed cover of feed liquor end of centrifugal pump and the play liquid end of centrifugal pump, the inboard one end contact of fixed cover has the spacer ring, spacer ring one end fixedly connected with connecting pipe, the inboard one end contact of spacer ring has the guiding axle, and guiding axle and fixed cover fixed connection, the contact of the spacer ring other end has rubber material's sealed pad, and the guiding axle runs through sealed pad, sealed pad and fixed cover and guiding axle contact, the block is connected with in the center department block in the outer side of spacer ring, and the block contacts with fixed cover, the inboard one end contact of block has first spring, the one end fixedly connected with gag lever post in the outer side of block, and the gag lever post runs through fixed cover, gag lever post and fixed cover contact, the one end fixedly connected with guide block in the outer side of gag lever post, the one end contact of guide block has the solid fixed ring. As a further improvement of the utility model, the two ends of the outer side of the fixed ring are closely contacted with the sealing rings, the sealing rings are closely contacted with the fixed sleeve, and the sealing rings are made of rubber. As a further improvement of the utility model, the other end of the first spring is contacted with a threaded plug, and the threaded plug is in spiral connection with the fixed sleeve. As a further improvement of the utility model, the fixed ring is contacted with the limiting rod and the centrifugal pump, the liquid inlet end of the centrifugal pump and the liquid outlet end of the centrifugal pump penetrate through the fixed ring, and the contact part of the guide block and the fixed ring is arranged in an arc shape. As a further improvement of the utility model, one end of the sealing gasket is contacted with a pressing ring, one end of the pressing ring is contacted with a second spring, the other end of the second spring is contacted with the fixed sleeve, the guide shaft penetrates through the second spring and the pressing ring, and the pressing ring is contacted with the guide shaft. Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model provides a leak protection device for centrifugal pump, through the solid fixed ring that sets up, the guide block, the gag lever post, the fixture block, first spring, solid fixed sleeve and holding ring, when being connected to the business turn over liquid end of centrifugal pump, promote solid fixed ring earlier and slide at the business turn over liquid end of centrifugal pump, further make gu fixed ring and the cambered surface of guide block slide, the gag lever post can constantly drive fixture block compression first spring this moment, then through the holding ring that connects the connecting pipe inserts the solid fixed sleeve that the centrifugal pump business turn over liquid end is connected, further make the holding ring slide in solid fixed sleeve under the direction of guiding axle, seal pad of extrusion rubber material simultaneously, when the holding ring can't continue to slide, through reset solid fixed ring, further make the fixture block card in holding ring outside center department outside the holding ring, can use after accomplishing the installation, through reciprocal promotion solid fixed ring control fixture block reciprocating motion, further make the fixture block card into the holding ring outside after inserting solid fixed sleeve, thereby connect the business turn over liquid end of centrifugal pump, can prevent that it from connecting and be in the phenomenon that the vibration effect appears leaking under the effect, and guarantee the sealed effect of device, and then through fixing ring has still conveniently been dismantled after fixing ring is fixed i