CN211116776U - Water pump impeller's fixing device - Google Patents
Water pump impeller's fixing device Download PDFInfo
- Publication number
- CN211116776U CN211116776U CN201922247699.2U CN201922247699U CN211116776U CN 211116776 U CN211116776 U CN 211116776U CN 201922247699 U CN201922247699 U CN 201922247699U CN 211116776 U CN211116776 U CN 211116776U
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- hole
- installation
- impeller
- cushion
- water pump
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Abstract
The utility model relates to a fixing device of water pump impeller belongs to water pump technical field, the impeller that has the installation through-hole including the center, the round pin joint has the pivot in the installation through-hole, the impeller bottom is provided with covers completely the cushion of installation through-hole is provided with the mounting hole in the cushion, the corresponding screw hole with the mounting hole is seted up to the lower terminal surface of pivot, the cushion wears to establish the mounting hole through the bolt and the spiro union covers completely in the mode of screw hole the installation through-hole, the marginal shaping downwards of cushion have with the counter bore of bolt nut thickness looks adaptation. The utility model provides a fixing device of water pump impeller has simple structure to effectively prevent impurity winding gap, protection bolt makes its advantages such as easily dismantle the washing.
Description
The technical field is as follows:
the utility model belongs to the technical field of the water pump, refer in particular to a fixing device of water pump impeller.
Background art:
at present, in a common submersible pump or a sewage pump, an impeller is arranged in a penetrating mode through a nut and then the nut is fixed at one end of a rotating shaft. The traditional fixing modes include that an elastic pad and a gasket are arranged between the connecting positions of the outer hexagon bolts and the impeller, and after the water pump is used for a long time, fibrous impurities are easily wound on the connecting positions, and the impurities easily wear the hexagon nuts and one end of the rotating shaft, so that loss is caused; the other type of adopted hexagon socket head cap screw is fixed, but the problems of sundries loss of the screw bolt, a rotating shaft and the like still cannot be solved, and after the long-time abrasion, the impeller cannot be detached, cleaned and replaced.
The invention content is as follows:
the utility model aims at providing an effectively prevent impurity winding bolt, impeller and pivot between junction, easily wash change and simple structure's water pump impeller's fixing device.
The utility model discloses a realize like this:
the utility model provides a fixing device of water pump impeller, has the impeller of installation through-hole including the center, and the round pin has the pivot in the installation through-hole, the impeller bottom is provided with and covers completely the cushion of installation through-hole is provided with the mounting hole in the cushion, the screw hole corresponding with the mounting hole is seted up to the lower terminal surface of pivot, the cushion wears to establish the mounting hole through the bolt and the spiro union covers completely in the mode of screw hole the installation through-hole, the marginal shaping downwards of cushion have with the counter bore of bolt and nut thickness looks adaptation.
The utility model discloses further set up to, the bolt is hexagon socket head cap screw.
The utility model discloses further set up to, be provided with spacing portion in the pivot, spacing portion with the top of installation through-hole offsets.
The utility model discloses further set up to, the downward shaping in bottom of installation through-hole has to be greater than the impeller counter bore of installation through-hole diameter.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model prevents the bolt from directly exposing outside through the cushion block with the counter bore, effectively prevents the connection part of the bolt and the rotating shaft from being wound and worn by impurities and gravels in water, and protects the bolt, thereby being convenient for users to disassemble, replace and clean;
2. the inner hexagon bolt adopted by the utility model utilizes the structure of the inner hexagon bolt to ensure that the adjusting part is not easy to be eroded, avoid the sliding teeth and facilitate the disassembly and cleaning;
3. the utility model further arranges a limit part on the rotating shaft to prevent the impeller from being over-tightened when being fixed with the rotating shaft, thereby ensuring the normal use of the bolt;
4. the impeller counter bore arranged at the bottom of the mounting through hole ensures that the cushion block and the mounting through hole are not easily eroded by gravel and impurities to a certain extent;
description of the drawings:
fig. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is an exploded schematic view of the present invention;
in the figure:
1-an impeller; 10-mounting a through hole; 11-impeller counter bore; 2-a rotating shaft; 20-a threaded hole; 21-a limiting part; 3-cushion block; 30-mounting holes; 31-a counter bore; 4-bolt.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, see fig. 1 and 2:
a fixing device of a water pump impeller comprises an impeller 1 with a mounting through hole 10 in the center, a rotating shaft 2 is pinned in the mounting through hole 10, the bottom of the impeller 1 is provided with a cushion block 3 which completely covers the mounting through hole 10, a mounting hole 30 is arranged in the cushion block 3, the lower end surface of the rotating shaft 2 is provided with a threaded hole 20 corresponding to the mounting hole 30, the cushion block 3 completely covers the mounting through hole 10 in a mode that the bolt 4 penetrates through the mounting hole 30 and is screwed with the threaded hole 20, the edge of the cushion block 3 is downwards formed with a counter bore 31 which is matched with the nut thickness of the bolt 4, when the sewage pump or the sewage pump works, most of impurities and fine sand flowing in sewage at high speed can be blocked outside the cushion block 3, the bolt in the counter bore 31 matched with the thickness of the bolt and the nut is protected, the bolt is not corroded, and the bolt 4 is easy to detach when the impeller is cleaned after long-time use.
It is worth mentioning that the installation through hole 10 is completely covered by one end face of the cushion block 3, so that the gap between the cushion block 3 and the installation through hole can be reduced, and the rotating shaft 2 effectively avoids the winding of sundries.
Preferably, the bolt 4 is a hexagon socket head cap screw, the hexagon socket head cap screw can utilize the structure of the bolt, and the adjusting part of the bolt can be effectively protected, so that the corrosion of impurities is avoided, and the sliding of teeth and the influence on the disassembly and cleaning are avoided.
Preferably, the rotating shaft 2 is provided with a limiting part 21, the limiting part 21 abuts against the top of the installation through hole 10, the limiting part 21 can limit the rotating shaft 2 by being connected to the installation through hole 10 in a pin mode, the rotating shaft 2 is prevented from being inserted into the installation through hole 10 too tightly, and therefore the rotating shaft is easy to disassemble during cleaning.
Preferably, an impeller counter bore 11 with a diameter larger than that of the installation through hole 10 is formed downwards at the bottom of the installation through hole 10, and the purpose of the impeller counter bore 11 is to block sundries and wind the connection part of the bolt and the cushion block driven by the rotation of the rotating shaft.
The working principle is as follows:
the utility model discloses a be provided with the cushion that has the counter bore between bolt and impeller, let the bolt at the during operation, effectively avoid the corruption of impurity and fine sand in the sewage, play good guard action to the bolt, the cushion has the structure that covers the installation through-hole simultaneously, let the pivoted pivot when driving the bolt rotation, only let the bolt rotate in the counter bore of cushion, let and keep quiescent condition between cushion and the impeller, thereby reduced the risk that impurity and fine sand got into the gap wearing and tearing part.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (4)
1. The utility model provides a fixing device of water pump impeller, its characterized in that has impeller (1) of installation through-hole (10) including the center, and the round pin has pivot (2) in installation through-hole (10), impeller (1) bottom is provided with and covers completely cushion (3) of installation through-hole (10) are provided with mounting hole (30) in cushion (3), corresponding screw hole (20) with mounting hole (30) are seted up to the lower terminal surface of pivot (2), cushion (3) wear to establish mounting hole (30) and spiro union in the mode of screw hole (20) and cover completely through bolt (4) installation through-hole (10), the downward shaping in edge of cushion (3) have with counter bore (31) of bolt (4) nut thickness looks adaptation.
2. A water pump impeller fastening device as claimed in claim 1, characterized in that the bolts (4) are hexagon socket head bolts.
3. The water pump impeller fixing device according to claim 1, wherein the rotating shaft (2) is provided with a limiting part (21), and the limiting part (21) abuts against the top of the mounting through hole (10).
4. A water pump impeller fixing device according to claim 1, wherein the bottom of the mounting through hole (10) is formed with an impeller counterbore (11) larger than the diameter of the mounting through hole (10) downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922247699.2U CN211116776U (en) | 2019-12-13 | 2019-12-13 | Water pump impeller's fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922247699.2U CN211116776U (en) | 2019-12-13 | 2019-12-13 | Water pump impeller's fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116776U true CN211116776U (en) | 2020-07-28 |
Family
ID=71689838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922247699.2U Active CN211116776U (en) | 2019-12-13 | 2019-12-13 | Water pump impeller's fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116776U (en) |
-
2019
- 2019-12-13 CN CN201922247699.2U patent/CN211116776U/en active Active
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