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CN-224228928-U - Sealing structure of plastic pump

CN224228928UCN 224228928 UCN224228928 UCN 224228928UCN-224228928-U

Abstract

The utility model provides a sealing structure of a plastic pump, and belongs to the technical field of water pump devices. The plastic pump solves the problems that the existing plastic pumps are poor in sealing performance, once water is fed into the plastic pumps and particles easily cause the motor to run abnormally, bearings are damaged, noise is increased and the like. The sealing structure of the plastic pump comprises a plastic pump body, wherein the plastic pump body comprises a base, a motor assembly and a sealing cover, the sealing cover is used for being sleeved outside the motor assembly, the sealing cover is detachably connected with the base, a supporting sealing seat is further arranged between the sealing cover and the base, a first sealing structure is arranged between the sealing seat and the base, and a second sealing structure and a third sealing structure are arranged between the sealing cover and the supporting sealing seat. The utility model has the advantages of higher tightness than other plastic pumps, etc.

Inventors

  • CHEN DIANJUN
  • ZHANG JUNJIE
  • WU PEIXIANG
  • JIANG CHENG
  • CHEN YIWEN

Assignees

  • 浙江泰福泵业股份有限公司

Dates

Publication Date
20260512
Application Date
20250324

Claims (7)

  1. 1. The utility model provides a seal structure of plastic pump, its characterized in that, includes plastic pump body (1), plastic pump body (1) include base (2), motor assembly (3) and sealed lid (4), sealed lid (4) are used for the cover to establish motor assembly (3) are outside, sealed lid (4) with base (2) can dismantle and be connected, sealed lid (4) with still be provided with between base (2) support seal seat (5), seal seat with be provided with first seal structure (6) between base (2), be provided with second seal structure (7) and third seal structure (8) between sealed lid (4) and support seal seat (5).
  2. 2. The sealing structure of a plastic pump according to claim 1, characterized in that the first sealing structure (6) comprises an extending sealing ring (9), the extending sealing ring (9) is arranged on the sealing cover (4), the base (2) is provided with a plurality of thread grooves (10), the extending sealing ring (9) is provided with a plurality of first thread holes (11), and the extending sealing ring (9) and the base (2) are detachably connected through a screw.
  3. 3. A sealing structure of a plastic pump according to claim 2, characterized in that the supporting sealing seat (5) is provided with a plurality of second threaded holes (12), and the second threaded holes (12) are arranged between the thread groove (10) and the first threaded holes (11).
  4. 4. A sealing arrangement for a plastic pump according to claim 3, characterized in that the second sealing arrangement (7) comprises an insert (13) arranged on the sealing cover (4), a sealing ring (14) and a slot (15) arranged on the supporting sealing seat (5), the insert (13) being intended to be inserted into the slot (15), the sealing ring (14) being arranged between the insert (13) and the slot (15).
  5. 5. A sealing structure of a plastic pump according to claim 4, characterized in that the sealing ring (14) is provided with two elastic convex rings (16) near both sides of the insert block (13) and the slot (15).
  6. 6. A sealing arrangement of a plastic pump according to claim 5, characterized in that the third sealing arrangement (8) comprises two sealing collars (17) arranged on the supporting sealing seat (5).
  7. 7. A sealing structure of a plastic pump according to claim 1, characterized in that the bottom of the supporting sealing seat (5) is provided with an extension block (18), said extension block (18) being intended to be inserted into the base (2).

Description

Sealing structure of plastic pump Technical Field The utility model belongs to the technical field of water pump apparatuses, and particularly relates to a sealing structure of a plastic pump. Background The plastic pump is one of the water pump family members, and the plastic pump has the advantages of corrosion resistance, wear resistance, high temperature resistance, no aging, high mechanical strength, stable operation, advanced and reasonable structure, strict and reliable sealing performance, convenient disassembly and maintenance, long service life and the like. However, the existing plastic pumps are poor in sealing performance, once water and particles are fed, the motor cannot normally run easily, and bearings are damaged, noise is increased and the like. Disclosure of Invention The present utility model has been made keeping in mind the above problems occurring in the prior art, and an object of the present utility model is to provide a sealing structure for a plastic pump. The sealing structure of the plastic pump comprises a plastic pump body, wherein the plastic pump body comprises a base, a motor assembly and a sealing cover, the sealing cover is used for being sleeved outside the motor assembly and detachably connected with the base, a supporting sealing seat is further arranged between the sealing cover and the base, a first sealing structure is arranged between the sealing seat and the base, and a second sealing structure and a third sealing structure are arranged between the sealing cover and the supporting sealing seat. The motor assembly is characterized in that the motor assembly comprises a base, a supporting sealing seat, a motor assembly, a sealing cover, a first sealing structure, a second sealing structure, a third sealing structure, a first sealing structure, a second sealing structure and a third sealing structure. In the sealing structure of the plastic pump, the first sealing structure comprises an extending sealing ring, the extending sealing ring is arranged on the sealing cover, the base is provided with a plurality of thread grooves, the extending sealing ring is provided with a plurality of first thread holes, and the extending sealing ring is detachably connected with the base through a thread piece. In the sealing structure of the plastic pump, a plurality of second threaded holes are formed in the supporting sealing seat, and the second threaded holes are formed between the threaded grooves and the first threaded holes. In the sealing structure of the plastic pump, the second sealing structure comprises an inserting block, a sealing ring and a slot, wherein the inserting block is arranged on the sealing cover, the slot is arranged on the supporting sealing seat, the inserting block is used for being inserted into the slot, and the sealing ring is arranged between the inserting block and the slot. In the sealing structure of the plastic pump, two elastic convex rings are arranged on two surfaces, close to the insert block and the slot, of the sealing ring. In the sealing structure of the plastic pump, the third sealing structure comprises two sealing convex rings arranged on the supporting sealing seat. In the sealing structure of the plastic pump, an extension block is arranged at the bottom of the supporting sealing seat and is used for being inserted into the base. Compared with the prior art, the utility model has the advantage of higher tightness than other plastic pumps. Drawings Fig. 1 is a schematic structural view of the present utility model. Fig. 2 is a schematic structural view of the supporting seal base of the present utility model. FIG. 3 is a schematic view of the seal ring of the present utility model. In the figure, 1, a plastic pump body, 2, a base, 3, a motor assembly, 4, a sealing cover, 5, a supporting sealing seat, 6, a first sealing structure, 7, a second sealing structure, 8, a third sealing structure, 9, an extending sealing ring, 10, a thread groove, 11, a first threaded hole, 12, a second threaded hole, 13, an inserting block, 14, a sealing ring, 15, a slot, 16, an elastic convex ring, 17, a sealing convex ring, 18 and an extending block. Detailed Description The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments. As shown in fig. 1-3, the sealing structure of the plastic pump comprises a plastic pump body 1, wherein the plastic pump body 1 comprises a base 2, a motor assembly 3 and a sealing cover 4, the sealing cover 4 is used for being sleeved outside the motor assembly 3, the sealing cover 4 is detachably connected with the base 2, a supporting sealing seat 5 is further arranged between the sealing cover 4 and the base 2, a first sealing structure 6 is arranged between the sealing seat and the base 2, and a second sealing structure 7 an