Impeller for high-flow water pump

Abstract

The utility model discloses an impeller for a large-flow water pump, which relates to the technical field of water pump parts and comprises an impeller disc, a protective plastic shell is mounted at the upper end of the impeller disc in a threaded manner, torsion blocks are symmetrically and fixedly mounted at the upper end of the protective plastic shell, and impeller blades are fixedly mounted at the upper end of the impeller disc through a mounting mechanism. The mounting mechanism comprises mounting grooves, the mounting grooves are formed in the upper end of the impeller disc at equal angles, the lower ends of the impeller blades are inserted into the inner sides of the mounting grooves, fixing grooves are formed in the upper ends of the impeller blades, and through holes are formed in the inner sides of the fixing grooves. By the adoption of the structure, the impeller blades are positioned and inserted into the mounting grooves in the impeller disc, then the mounting bolts are inserted into the through holes of the fixing grooves and then fixedly connected with the impeller disc, finally, the rubber cushion blocks are buckled into the ends of the mounting bolts, and the clamping springs are clamped into the clamping grooves in the fixing grooves. And therefore, the impeller blades can be conveniently replaced and used.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water pump component technical field, especially relate to a impeller for large flow water pump. BACKGROUND

[0002] A water pump is a mechanical device that uses mechanical energy to increase the pressure or transport liquid. It converts mechanical energy into kinetic energy and potential energy of the liquid by rotating the impeller inside, thereby realizing the continuous flow of liquid. Water pumps are widely used in agricultural irrigation, urban water supply, industrial cooling, sewage treatment and other fields, and are indispensable important equipment in modern society. According to its working principle and structural characteristics, water pumps can be divided into centrifugal pumps, axial flow pumps, mixed flow pumps and other types to meet the liquid conveying needs in different scenarios. With its high efficiency, energy saving and reliability, water pumps play an important role in promoting economic development and improving people's lives. The conventional water pump impeller includes a shaft hole, a hub and blades connected to the hub. The blades are smooth curved surfaces with a certain radius. The smooth curved blades can reduce the resistance to water flow during water flow. However, under the same circumferential radius and the same speed, the flow and lift of the curved impeller are both small, which cannot meet the requirements of high lift and large flow.

[0003] According to the search, the patent with the publication number CN211116778U discloses a large flow water pump impeller, specifically relating to the technical field of water pump components, which includes an impeller disc, a first impeller blade and a second impeller blade installed on the periphery of the surface of the impeller disc, a first impeller blade and a second impeller blade connected, a hub installed at the center of the impeller disc, a through hole formed at the center of the hub, a friction connection between the through hole of the hub and an expansion sleeve, an expansion inner sleeve frictionally connected inside the expansion sleeve, and an internal hexagonal screw adapted to the screw hole of the expansion inner sleeve and the expansion sleeve.

[0004] From the above-mentioned prior art, it can be understood that the traditional water pump impeller is often damaged and deformed due to the collision of hard particles in water after long-term use, which seriously affects the service life and efficiency of the water pump, increases the maintenance cost of the workers, and the blades are integrated and inconvenient to replace. The whole unit must be replaced, which has a relatively high replacement cost. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the purpose of the utility model is to provide an impeller for large flow water pump to solve the problems mentioned in the above background art.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] The utility model provides a kind of impeller for large-flow water pump, comprising: impeller disc, the upper end of the impeller disc is threadedly installed with protective plastic shell, the upper end of the protective plastic shell is symmetrically fixedly installed with torsion block, the upper end of the impeller disc is fixedly installed with impeller blade by mounting mechanism;

[0008] The mounting mechanism includes a mounting slot, which is equally angularly provided on the upper end of the impeller disc. The lower end of the impeller blade is inserted into the inner side of the mounting slot. A fixing slot is provided on the upper end of the impeller blade. A through hole is provided on the inner side of the fixing slot. An installation bolt is inserted into the inner side of the fixing slot. The lower end of the installation bolt is movably threaded through the through hole and the mounting slot. The end of the installation bolt is located on the inner side of the fixing slot. A rubber pad is buckled on the upper end of the end of the installation bolt. A clamping slot is provided on the inner side of the fixing slot. A clamping spring is clamped on the inner side of the clamping slot.

[0009] As a preferred technical solution, a first screw groove is provided on the outer periphery of the upper end of the impeller disc. The lower end of the protective plastic shell is threadedly connected with the first screw groove of the impeller disc.

[0010] As a preferred technical solution, a second screw groove is provided on the inner side of the mounting slot. The lower end of the installation bolt is movably threaded through the second screw groove of the impeller blade and the impeller disc.

[0011] As a preferred technical solution, a reinforcing column is symmetrically fixedly installed on the inner side of the mounting slot. The upper end of the reinforcing column is connected with the lower end of the impeller blade in a plug-in manner.

[0012] As a preferred technical solution, a second connecting slot is provided on the lower end of the rubber pad. A first connecting slot is provided on the upper end of the end of the installation bolt. The rubber pad is buckled through the second connecting slot and the first connecting slot of the installation bolt.

[0013] As a preferred technical solution, a rubber convex ring is provided on the upper end of the rubber pad. The upper end of the rubber convex ring is arc-shaped.

[0014] As a preferred technical solution, an installation hole is provided on the center of the impeller disc. A key groove is provided on the inner side of the installation hole.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] Firstly, by positioning the impeller blade into the mounting slot on the impeller disc, then inserting the installation bolt into the through hole of the fixing slot, and finally buckling the rubber pad into the end of the installation bolt and clamping the clamping spring into the clamping slot on the fixing slot, the impeller blade can be conveniently replaced and used, thereby greatly reducing the replacement cost of the traditional water pump impeller.

[0017] Second, by the threaded installation of the protective plastic shell on the impeller disc, the impeller disc on the impeller disc can be protected, avoiding the damage of the impeller disc of the product when carrying and transporting after purchase, and when replacing the impeller of the water pump, only the protective plastic shell is taken off from the impeller disc by operating the torsion block on the protective plastic shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the utility model;

[0019] Figure 2 is the structure schematic diagram of the utility model without protective plastic shell;

[0020] Figure 3 is the partial exploded view of the utility model;

[0021] Figure 4 is the Figure 3 enlarged view of A in the middle;

[0022] Figure 5 is the bottom view of the rubber pad block of the utility model.

[0023] Significant: 1, impeller disc; 2, protective plastic shell; 3, torsion block; 4, first screw groove; 5, impeller blade; 6, second screw groove; 7, mounting hole; 8, key groove; 9, mounting mechanism; 901, mounting groove; 902, through hole; 903, clamping groove; 904, mounting bolt; 905, rubber pad block; 906, clamping spring; 907, fixing groove; 10, first connecting groove; 11, second connecting groove; 12, rubber convex ring; 13, reinforcing column. DETAILED DESCRIPTION

[0024] Reference Figures 1 to 5 The impeller for large-flow water pump described in the embodiment comprises: an impeller disc 1, a protective plastic shell 2 is threadedly installed on the upper end of the impeller disc 1, torsion blocks 3 are symmetrically and fixedly installed on the upper end of the protective plastic shell 2, and impeller blades 5 are fixedly installed on the upper end of the impeller disc 1 through a mounting mechanism 9. By threadedly installing the protective plastic shell 2 on the impeller disc 1, the impeller disc 1 on the impeller disc 1 can be protected, avoiding the damage of the impeller blades 5 of the impeller disc 1 when carrying and transporting the product after purchase. When replacing the impeller of the water pump, only the protective plastic shell 2 is taken off from the impeller disc 1 by operating the torsion blocks 3 on the protective plastic shell 2.

[0025] The mounting mechanism 9 comprises a mounting groove 901, which is provided at an equal angle on the upper end of the impeller disc 1, the lower end of the impeller blade 5 is inserted into the inner side of the mounting groove 901, the upper end of the impeller blade 5 is provided with a fixing groove 907, the inner side of the fixing groove 907 is provided with a through hole 902, the mounting screw 904 is inserted into the inner side of the fixing groove 907, the lower end of the mounting screw 904 is movably penetrated through the through hole 902 and the mounting groove 901 and is screwed, the end of the mounting screw 904 is arranged in the inner side of the fixing groove 907, the upper end of the end of the mounting screw 904 is buckled with the rubber pad 905, the inner side of the fixing groove 907 is provided with a clamping groove 903, the clamping spring 906 is clamped in the inner side of the clamping groove 903, when the impeller blade 5 on the impeller disc 1 needs to be replaced and mounted, the impeller blade 5 is positioned and inserted into the mounting groove 901 on the impeller disc 1, then the mounting screw 904 is inserted into the through hole 902 of the fixing groove 907, and then is connected and fixed with the impeller disc 1, finally the rubber pad 905 is buckled at the end of the mounting screw 904, and the clamping spring 906 is clamped into the clamping groove 903 on the fixing groove 907, so that the impeller blade 5 can be conveniently replaced and used.

[0026] With reference to Figure 2 , the upper end of the impeller disc 1 is provided with a first screw groove 4, the lower end of the protective plastic shell 2 is screwed with the first screw groove 4 of the impeller disc 1, by providing the first screw groove 4 on the impeller disc 1, the protective plastic shell 2 can be conveniently screwed and mounted on the impeller disc 1.

[0027] With reference to Figure 3 , the inner side of the mounting groove 901 is provided with a second screw groove 6, the lower end of the mounting screw 904 is movably penetrated through the second screw groove 6 of the impeller blade 5 and the impeller disc 1 and is screwed, by providing the second screw groove 6 on the inner side of the mounting groove 901, the mounting screw 904 can be conveniently penetrated through the impeller blade 5 and mounted and fixed with the second screw groove 6 of the impeller disc 1.

[0028] With reference to Figure 3 , the inner side of the mounting groove 901 is symmetrically and fixedly provided with a reinforcing column 13, the upper end of the reinforcing column 13 is insertedly connected with the lower end of the impeller blade 5, by installing the reinforcing column 13 on the inner side of the mounting groove 901 and insertingly connecting the reinforcing groove corresponding to the lower end of the impeller blade 5, the mounting strength of the impeller blade 5 on the impeller disc 1 can be further strengthened.

[0029] With reference to Figure 4 and Figure 5 , the lower end of the rubber pad 905 is provided with a second connecting groove 11, the end of the mounting screw 904 is provided with a first connecting groove 10, the rubber pad 905 is buckled through the second connecting groove 11 and the first connecting groove 10 of the mounting screw 904, by providing the second connecting groove 11 on the lower end of the rubber pad 905, the rubber pad 905 can be conveniently positioned and buckled into the first connecting groove 10 on the end of the mounting screw 904.

[0030] With reference to Figure 5 The upper end of the rubber pad 905 is provided with a rubber convex ring 12, the upper end of the rubber convex ring 12 is arc-shaped, through the arc-shaped rubber convex ring 12 at the upper end of the rubber pad 905, the side of the clamp spring 906 can better limit and press the end of the mounting bolt 904, so as to ensure the stability of the mounting bolt 904, and the situation that the impeller blade 5 is separated from the impeller disc 1 due to loosening of the mounting bolt 904 is avoided.

[0031] With reference to Figure 2 The center of the impeller disc 1 is provided with a mounting hole 7, the inner side of the mounting hole 7 is provided with a key groove 8, through the mounting hole 7 with the key groove 8 at the center of the impeller disc 1, the impeller disc 1 and the water pump driving shaft can be conveniently connected and installed for use.

[0032] Principle and advantages: in the use process, when it is needed to replace and install the impeller blade 5 on the impeller disc 1, the impeller blade 5 is positioned and inserted into the installation groove 901 on the impeller disc 1, then the mounting bolt 904 is inserted into the through hole 902 of the fixing groove 907, and then connected and fixed with the impeller disc 1, finally the rubber pad 905 is buckled at the end of the mounting bolt 904, and then the clamp spring 906 is buckled into the clamping groove 903 on the fixing groove 907.

[0033] Through the threaded installation of the protective plastic shell 2 on the impeller disc 1, the impeller disc 1 on the impeller disc 1 can be protected, so as to avoid damage to the impeller blade 5 of the impeller disc 1 during carrying and transportation after purchase, and when the impeller of the water pump is replaced, only the protective plastic shell 2 is needed to be taken off from the impeller disc 1 by operating the torsion block 3 on the protective plastic shell 2.

Claims

1. An impeller for a high-flow water pump, characterized by , including: the impeller disc, the upper end of the impeller disc is screw mounted with a protective plastic shell, the upper end of the protective plastic shell is symmetrically fixedly installed with a torsion block, the upper end of the impeller disc is fixedly installed with an impeller blade through a mounting mechanism; The mounting mechanism includes a mounting groove, which is equally angularly provided on the upper end of the impeller disc, the lower end of the impeller blade is inserted into the inner side of the mounting groove, the upper end of the impeller blade is provided with a fixing groove, the inner side of the fixing groove is provided with a through hole, the inner side of the fixing groove is inserted with a mounting bolt, the lower end of the mounting bolt is movably penetrated through the through hole and the mounting groove and is screw mounted, the end of the mounting bolt is arranged in the inner side of the fixing groove, the upper end of the end of the mounting bolt is buckled with a rubber pad block, the inner side of the fixing groove is provided with a clamping groove, and the inner side of the clamping groove is clamped with a clamping spring.

2. A large flow rate water pump impeller according to claim 1, characterized in that: The upper end of the impeller disc is provided with a first screw groove on the periphery, and the lower end of the protective plastic shell is screw connected with the first screw groove of the impeller disc.

3. A large flow rate water pump impeller according to claim 1, characterized in that: The inner side of the mounting groove is provided with a second screw groove, and the lower end of the mounting bolt is screw mounted by movably penetrating the second screw groove of the impeller blade and the impeller disc.

4. A large flow rate water pump impeller according to claim 1, characterized in that: The inner side of the mounting groove is symmetrically fixedly installed with a reinforcing column, and the upper end of the reinforcing column is connected with the lower end of the impeller blade in a plug-in manner.

5. A large flow rate water pump impeller according to claim 1, characterized in that: The lower end of the rubber pad block is provided with a second connecting groove, the upper end of the end of the mounting bolt is provided with a first connecting groove, and the rubber pad block is buckled through the second connecting groove and the first connecting groove of the mounting bolt.

6. A large flow water pump impeller according to claim 1, characterized in that: The upper end of the rubber pad block is provided with a rubber convex ring, and the upper end of the rubber convex ring is arc-shaped.

7. A large flow rate water pump impeller according to claim 1, characterized in that: The center of the impeller disc is provided with a mounting hole, and the inner side of the mounting hole is provided with a key groove.

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