Sewage pump impeller

Abstract

The utility model discloses a sewage pump impeller which comprises an impeller cover plate, an inner supporting plate is connected to the inner side of the impeller cover plate in a clamped mode, center holes are formed in the middle of the interior of the impeller cover plate and the middle of the interior of the inner supporting plate, key grooves are formed in one sides of the center holes, impeller blades are arranged on one side of the inner supporting plate, and installation sliding holes matched with the impeller blades in an inserted mode are formed in the impeller cover plate. The impeller cover plate and the inner supporting plate are fixedly connected through a screw rod and a limiting nut, the outer diameter of the inner supporting plate is smaller than that of the impeller cover plate, and a mounting groove is formed in the impeller cover plate, so that the impeller blades are mounted on one side of the inner supporting plate, the inner supporting plate is clamped in the mounting groove in the inner side of the impeller cover plate, and the impeller cover plate and the inner supporting plate are fixedly connected through the screw rod and the limiting nut. And the impeller cover plate and the inner supporting plate are further fixedly connected through a screw rod and a limiting nut, so that the impeller blades can be conveniently mounted on the impeller cover plate, the mounting and fixing stability is high, and dismounting and mounting are convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage pump technical field, concretely is a sewage pump impeller. BACKGROUND

[0002] With the progress of society, the continuous improvement of people's living standards and the strengthening of environmental awareness, sewage pumps have been familiar to people, and the application range has become more and more wide, sewage pump is a kind of pump mechanical, has multiple forms: such as submersible and dry two kinds, the most commonly used submersible is QW type submersible sewage pump, the most common dry sewage pump such as W type horizontal sewage pump and WL type vertical sewage pump two kinds, mainly used for discharging sewage, it realizes the discharge or reuse of sewage by pumping sewage from low place to high place.

[0003] Prior art application number 202221324037.6 a vortex sewage pump impeller and sewage pump including impeller cover plate, the center is provided with centrifugal cavity;Blade, is provided with a plurality of groups, from the centrifugal cavity of the impeller cover plate to its outer peripheral direction evenly distributed, adjacent two groups of the blade form a flow channel;Edge strip auxiliary blade, set on the blade, and uniformly extend to the direction of the flow channel of one side. Adjacent blade and edge strip auxiliary blade form a semi-open flow channel, so that the whole impeller forms a semi-open impeller, sewage and medium in sewage are transported along the flow channel, under the action of edge strip auxiliary blade, the hydraulic loss in the impeller is reduced, the impeller flow channel diffuses smoothly, the transmission medium flows stably, improves the performance and efficiency of the pump, and improves the performance of the particle, but the blade is fixedly arranged on the impeller cover plate, which is inconvenient to disassemble and assemble, and the blade is inconvenient to replace when damaged. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a sewage pump impeller to solve the problem of the prior art that the blade is fixedly arranged on the impeller cover plate, which is inconvenient to disassemble and assemble, and the blade is inconvenient to replace when damaged.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sewage pump impeller, comprising an impeller cover plate, an inner support plate is connected to the inner side of the impeller cover plate, a center hole is formed in the middle of the impeller cover plate and the inner support plate, a key groove is arranged on one side of the center hole, an impeller blade is arranged on one side of the inner support plate, an installation sliding hole is arranged in the inner part of the impeller cover plate and matched with the impeller blade, and the impeller cover plate and the inner support plate are connected and fixed by a screw rod and a limiting nut.

[0006] Further, the outer diameter of the inner support plate is smaller than that of the impeller cover plate, and an installation groove is arranged in the inner part of the impeller cover plate.

[0007] Further, a limiting protrusion is arranged on the inner wall of the installation groove, and a limiting groove matched with the limiting protrusion is arranged on the outer side of the inner support plate.

[0008] Further, the limiting protrusions and the limiting grooves are arranged in multiple groups in a ring array clamping mode, the limiting protrusions are semicircular protrusions, and the limiting grooves are semicircular grooves.

[0009] Further, the impeller blades include first blades and second blades, and the second blades are fixedly arranged at one end of the first blades, and the outer end surface of the first blade and the inner end surface of the second blade are in an S shape.

[0010] Further, the mounting sliding hole includes first sliding holes and second sliding holes, the first sliding holes are in plug-in cooperation with the first blades, and the second sliding holes are in plug-in cooperation with the second blades.

[0011] Further, the screw rod is vertically welded to the outer wall of the inner support plate, and the inner support plate further has a through hole for penetrating the screw rod.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a sewage pump impeller, which comprises an impeller cover plate, an inner support plate and impeller blades, wherein the impeller blades are arranged on one side of the inner support plate, the inner support plate is clamped in the mounting groove in the inner side of the impeller cover plate, and the impeller cover plate and the inner support plate are further connected and fixed through a screw rod and a limiting nut.

[0014] The utility model discloses a sewage pump impeller, which comprises an impeller cover plate, an inner support plate and impeller blades, wherein the impeller blades are arranged on one side of the inner support plate, the inner support plate is clamped in the mounting groove in the inner side of the impeller cover plate, and the impeller cover plate and the inner support plate are further connected and fixed through a screw rod and a limiting nut.

[0015] The utility model discloses a sewage pump impeller, which comprises an impeller cover plate, an inner support plate and impeller blades, wherein the impeller blades are arranged on one side of the inner support plate, the inner support plate is clamped in the mounting groove in the inner side of the impeller cover plate, and the impeller cover plate and the inner support plate are further connected and fixed through a screw rod and a limiting nut. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 It is the inner support plate structure schematic view of the utility model;

[0019] Figure 3 It is the impeller cover plate structure schematic view of the utility model;

[0020] Figure 4 It is the impeller cover plate structure bottom view of the utility model.

[0021] In the drawing: 1, impeller cover plate; 2, inner support plate; 3, first blade; 4, second blade; 5, keyway; 6, center hole; 7, screw rod; 8, limiting nut; 9, first sliding hole; 10, second sliding hole; 11, through hole; 12, mounting groove; 13, limiting protrusion; 14, limiting groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiments of the utility model, a sewage pump impeller includes an impeller cover plate 1, an inner support plate 2 is clamped on the inner side of the impeller cover plate 1, the outer diameter of the inner support plate 2 is smaller than the outer diameter of the impeller cover plate 1, the impeller cover plate 1 is provided with a mounting groove 12 for clamping the inner support plate 2, so that the impeller cover plate 1 and the inner support plate 2 are pre-installed, the center hole 6 is arranged in the middle of the impeller cover plate 1 and the inner support plate 2, the keyway 5 is arranged on one side of the center hole 6, the impeller blade is arranged on one side of the inner support plate 2, the mounting sliding hole matched with the impeller blade is arranged in the impeller cover plate 1, the screw rod 7 and the limiting nut 8 are further arranged between the impeller cover plate 1 and the inner support plate 2 for connection and fixation, the screw rod 7 is vertically welded on the outer wall of the inner support plate 2, the through hole 11 for penetrating the screw rod 7 is further arranged in the impeller cover plate 1, so that the locking treatment between the impeller cover plate 1 and the inner support plate 2 is realized, the impeller blade is conveniently mounted on the impeller cover plate 1, the contact area between the impeller blade and the impeller cover plate 1 is increased, the stability of the installation of the impeller blade and the impeller cover plate 1 is high, and the impeller blade is conveniently disassembled and assembled.

[0024] As Figure 1 and Figure 3As shown in the drawings, in order to improve the stability of the impeller blade and the impeller cover plate 1 installation fixed, also in the installation groove 12 inner wall is equipped with limiting protrusion 13, and the inner support plate 2 outside is equipped with the limiting slot 14 of limiting protrusion 13 card joint cooperation, limiting protrusion 13 and limiting slot 14 are arranged with multiple groups of ring array card joint cooperation, and limiting protrusion 13 is semicircular protrusion, limiting slot 14 is semicircular slot, limiting protrusion 13 is carded in limiting slot 14, the stability of the inner support plate 2 installation in the impeller cover plate 1 is improved, thereby further improving the stability of the impeller blade and the impeller cover plate 1 installation fixed.

[0025] As shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, in order to increase the drainage intensity of the sewage pump impeller, the impeller blade includes the first blade 3 and the second blade 4, and the second blade 4 is fixedly arranged on the outer side of one end of the first blade 3, and the outer end surface of the first blade 3 and the inner end surface of the second blade 4 are in S shape, so that an S-shaped channel is formed between adjacent impeller blades, the discharge space of water on the impeller blade is extended, and the drainage intensity of the sewage pump impeller is increased.

[0026] As shown in the drawings, Figure 1 , Figure 3 and Figure 4 As shown in the drawings, in order to facilitate the clamping and fixing of the impeller blade, the installation sliding hole includes the first sliding hole 9 and the second sliding hole 10, the first sliding hole 9 is in plug-in cooperation with the first blade 3, and the second sliding hole 10 is in plug-in cooperation with the second blade 4, so as to facilitate the clamping and fixing of the impeller blade through the impeller cover plate 1.

[0027] The working principle and use process of the utility model are as follows: in use, the impeller blade is installed on one side of the inner support plate 2, the inner support plate 2 is clamped in the installation groove 12 on the inner side of the impeller cover plate 1, and the impeller cover plate 1 and the inner support plate 2 are further connected and fixed through the screw rod 7 and the limiting nut 8, so as to facilitate the installation of the impeller blade on the impeller cover plate 1, and the contact area of the impeller blade and the impeller cover plate 1 is increased, so that the stability of the installation of the impeller blade and the impeller cover plate 1 is high, and the disassembly and assembly are convenient and fast.

[0028] Finally, it should be pointed out that: the above only for preferred embodiment of the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sewage pump impeller comprising an impeller cover plate (1), characterized in that: The inner side of the impeller cover plate (1) is clamped with an inner support plate (2), the center hole (6) is arranged in the middle of the impeller cover plate (1) and the inner support plate (2), the keyway (5) is arranged on one side of the center hole (6), the inner side of the inner support plate (2) is provided with an impeller blade, and the inner side of the impeller cover plate (1) is provided with an installation sliding hole matched with the impeller blade, and the impeller cover plate (1) and the inner support plate (2) are further connected and fixed through the screw rod (7) and the limiting nut (8).

2. A sewage pump impeller according to claim 1, characterized in that: The outer diameter of the inner support plate (2) is smaller than the outer diameter of the impeller cover plate (1), and the impeller cover plate (1) is provided with an installation groove (12).

3. A sewage pump impeller according to claim 1, wherein: The inner wall of the installation groove (12) is provided with a limiting protrusion (13), and the outer side of the inner support plate (2) is provided with a limiting groove (14) matched with the limiting protrusion (13).

4. A sewage pump impeller according to claim 3, wherein: The limiting protrusion (13) and the limiting groove (14) are arranged in multiple groups in the form of annular array clamping, and the limiting protrusion (13) is a semicircular protrusion, and the limiting groove (14) is a semicircular groove.

5. A sewage pump impeller according to claim 1, wherein: The impeller blade comprises a first blade (3) and a second blade (4), and the second blade (4) is fixedly arranged on the outer side of one end of the first blade (3), and the outer end surface of the first blade (3) and the inner end surface of the second blade (4) are in S shape.

6. A sewage pump impeller according to claim 5, wherein: The installation sliding hole comprises a first sliding hole (9) and a second sliding hole (10), the first sliding hole (9) is matched with the first blade (3), and the second sliding hole (10) is matched with the second blade (4).

7. A sewage pump impeller according to claim 1, wherein: The screw rod (7) is vertically welded on the outer wall of the inner support plate (2), and the inner side of the impeller cover plate (1) is further provided with a through hole (11) for penetrating the screw rod (7).

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