CN215214090U - Submersible sewage pump cutting impeller - Google Patents

Abstract

The utility model discloses a submersible sewage pump cutting impeller, which comprises a main body, a fixing ring arranged in the main body and two blades arranged along the periphery of the main body, wherein the main body is horn-shaped and comprises a first port and a second port which are opposite, the radius of the first port is smaller than that of the second port, the fixing ring is used for fixing a rotating shaft, the fixing ring is sleeved in the first port, a protection ring is arranged along the circumferential direction of the second port, and the protection ring is used for being connected with a pump body to seal the inner cavity of the main body; two blades are centrosymmetric about the port I, the blades extend spirally to the port II along the port I edge of the main body, the front end faces of the blades are flush with the end faces of the port I to form flush end faces, the flush end faces and the side faces of the blades form cutting edges, and the rear end faces of the blades are obliquely arranged. The utility model discloses a blade forms the terminal surface that flushes in port one of main part to form the cutting edge with the blade side, thereby effectively cut the aquatic debris at the water inlet, reduce and block up the probability.

Description

Submersible sewage pump cutting impeller

Technical Field

The utility model relates to a pump impeller technical field especially relates to a stealthily dirty pump cuts impeller.

Background

The submersible sewage pump is a pump product with wider application, the submersible sewage pump mainly plays a role in lifting water in a pool or a river and at a lower position to a higher and farther position, and due to the complex use environment, a large amount of impurities such as waterweeds are mixed in the water, and the impeller is easy to be wound to cause the blockage of the impeller.

By way of search, CN205823718U, a non-clogging impeller for submersible sewage pumps, discloses: the utility model provides a there is not impeller of jam for submersible sewage pump, this impeller includes back shroud (1), sets up shaft hole (2) at back shroud (1) center and evenly lays a plurality of blades (3) on back shroud (1) along the circumferencial direction, its characterized in that, the terminal surface a (5) of blade (3) be parallel with back shroud (1), and the edge of terminal surface a (5) be equipped with the sword limit, still be equipped with cutting blade (4) between two adjacent blades (3), under operating condition, the rotatory sword limit that drives blade (3) of impeller cuts up the solid in the fluid with cutting blade (4), prevents that submersible sewage pump's runner from taking place to block up. But the blade and the back shroud that the level set up are unfavorable for improving drainage efficiency, and simultaneously, set up cutting blade between two adjacent blades and make inconveniently on the one hand, on the other hand has reduced circulation route radius, causes the jam more easily. Therefore, it is necessary to provide a further solution to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stealthily dirty pump cutting impeller to overcome the not enough that exist among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that:

the submersible sewage pump cutting impeller comprises a main body, a fixing ring arranged in the main body and two blades arranged along the periphery of the main body, wherein the main body is in a horn shape and comprises a first port and a second port which are opposite to each other, the radius of the first port is smaller than that of the second port, the fixing ring is used for fixing a rotating shaft, the fixing ring is sleeved in the first port, a protection ring is arranged along the circumferential direction of the second port, and the protection ring is used for being connected with a pump body to seal an inner cavity of the main body; the two blades are centrosymmetric about the first port, the blades extend spirally to the second port along the first port edge of the main body, the front end faces of the blades are flush with the end faces of the first port to form flush end faces, the flush end faces and the side faces of the blades form cutting edges, and the rear end faces of the blades are obliquely arranged.

In a preferred embodiment of the present invention, the width of the flush end surface gradually increases toward a direction away from the first port.

In a preferred embodiment of the present invention, the cutting edge extends along a radial direction of the first port.

In a preferred embodiment of the present invention, the main body is further provided with an auxiliary cutting strip, and the cutting edge of the auxiliary cutting strip faces the water flow direction.

In a preferred embodiment of the present invention, the flush end is J-shaped.

In a preferred embodiment of the present invention, the auxiliary cutting strip is disposed near the second port, and the auxiliary cutting strip is disposed between the blade and the edge of the main body.

In a preferred embodiment of the present invention, the front end of the auxiliary cutting strip is disposed near the rear end of the blade.

In a preferred embodiment of the present invention, the thickness of the blade is 3 mm.

In a preferred embodiment of the present invention, the acute blade angle is blunt by 0.5 x 45 °.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model forms a flush end face at one position of the port of the main body through the blade and forms a cutting edge with the side face of the blade, thereby effectively cutting sundries in water at the water inlet and reducing the blocking probability; meanwhile, the horn-shaped main body is matched with the spiral double blades, so that water flow is smooth, and the drainage efficiency is improved; further, the cutting edge is gradually sharpened outwards by the flush end surface which is gradually increased, so that the cutting is more facilitated.

(2) The utility model improves the cutting ability of the sundries through the arrangement of the auxiliary cutting strips; furthermore, the auxiliary cutting strip is arranged close to the second port, so that the manufacturing is convenient, and meanwhile, sundries are further cut to prevent the sundries from blocking a rear pipeline.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of the present invention;

fig. 2 is another perspective view of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is a schematic top view of another embodiment of the present invention.

Specifically, 10, a main body; 11. a first port; 12. a second port; 20. a fixing ring; 30. a blade; 31. flush the end face; 32. a cutting edge; 40. a guard ring; 50. and (5) assisting in cutting the strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Embodiment 1, as shown in fig. 1 to 4, a submersible sewage pump impeller includes a main body 10, a fixing ring 20 provided in the main body 10, and two blades 30 provided along the outer periphery of the main body 10. The main body 10 is trumpet-shaped and comprises a first port 11 and a second port 12 which are opposite, wherein the radius of the first port 11 is smaller than that of the second port 12. The fixing ring 20 is used for fixing the rotating shaft, and the fixing ring 20 is sleeved in the first port 11. A protection ring 40 is arranged along the circumferential direction of the second port 12, and the protection ring 40 is used for connecting with a pump body to seal the inner cavity of the main body 10.

The two vanes 30 are centrosymmetric about the first port 11, the vanes 30 extend spirally from the edge of the first port 11 to the edge of the second port 12 of the main body 10, the front end surfaces (i.e., the ends indicated by the arrow a) of the vanes 30 are flush with the end surfaces of the first port 11 to form flush end surfaces 31, the flush end surfaces 31 form cutting edges 32 with the side surfaces of the vanes 30, the flush end surfaces 31 are formed at the first port 11 of the main body 10 by the vanes 30, and the cutting edges 32 are formed with the side surfaces of the vanes 30, so that impurities in water are effectively cut at the water inlet, and the blocking probability is reduced. The rear end (that is, the end pointed by the arrow b) terminal surface slope setting of blade 30 to be convenient for link up with the pump body inner wall, and the cooperation of tubaeform main part 10 and heliciform biplate 30 makes rivers smooth and easy, has improved the drainage and has imitated.

Preferably, the width of the flush end face 31 gradually increases in a direction away from the port one 11. The cutting edge 32 extends in a radial direction of the port one 11. Further, the flush end face 31 is J-shaped. With the progressively larger flush end face 31, the cutting edge 32 is progressively sharpened outwardly to facilitate cutting.

In embodiment 2, as shown in fig. 5, the main body 10 is further provided with an auxiliary cutting strip 50, and the cutting edge thereof faces the water flow direction, and the cutting edge of the auxiliary cutting strip 50, i.e., the front end of the auxiliary cutting strip 50, is indicated by an arrow c. Through the setting of supplementary cutting strip 50, improved the cutting ability to debris.

The auxiliary cutting strip 50 is disposed adjacent to the second port 12, and the auxiliary cutting strip 50 is located between the blade 30 and the edge of the body 10, thereby facilitating the manufacture.

Preferably, the front end of the auxiliary cutting strip 50 is disposed near the rear end of the blades 30, so that the water flow passes through the blades 30 without resistance, and the impurities are further cut when the water flow is about to flow out, so as to prevent the impurities from blocking the rear pipeline.

In the above two embodiments, the thickness of the blade 30 is preferably 3mm, and further, the acute angle of the blade 30 is blunt by 0.5 × 45 °.

In summary, the utility model forms a flush end face at one position of the port of the main body through the blade and forms a cutting edge with the side face of the blade, thereby effectively cutting sundries in water at the water inlet and reducing the blocking probability; meanwhile, the horn-shaped main body is matched with the spiral double blades, so that water flow is smooth, and the drainage efficiency is improved; further, the cutting edge is gradually sharpened outwards by the flush end surface which is gradually increased, so that the cutting is more facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The submersible sewage pump cutting impeller is characterized by comprising a main body (10), a fixing ring (20) arranged in the main body (10) and two blades (30) arranged along the periphery of the main body (10), wherein the main body (10) is horn-shaped and comprises a first port (11) and a second port (12) which are opposite to each other, the radius of the first port (11) is smaller than that of the second port (12), the fixing ring (20) is used for fixing a rotating shaft, the fixing ring (20) is sleeved in the first port (11), a protection ring (40) is arranged along the circumferential direction of the second port (12), and the protection ring (40) is used for being connected with a pump body to seal an inner cavity of the main body (10); the two blades (30) are centrosymmetric about the first port (11), the blades (30) extend spirally to the second port (12) along the edge of the first port (11) of the main body (10), the front end faces of the blades (30) are flush with the end faces of the first port (11) to form flush end faces (31), the flush end faces (31) and the side faces of the blades (30) form cutting edges (32), and the rear end faces of the blades (30) are obliquely arranged.

2. The submersible sewage pump cutting impeller of claim 1, wherein the width of the flush end face (31) increases progressively away from the first port (11).

3. The submersible sewage pump cutting impeller of claim 1, wherein the cutting edge (32) extends radially of the port one (11).

4. Submersible sewage pump cutting impeller according to claim 1, characterized in that the main body (10) is further provided with auxiliary cutting strips (50) and the cutting edges thereof are directed in the direction of the water flow.

5. Submersible sewage pump cutting impeller according to claim 2, characterized in that the flush end face (31) is J-shaped.

6. Submersible sewage pump cutting impeller according to claim 4, characterized in that the auxiliary cutting bar (50) is arranged close to the second port (12) and that the auxiliary cutting bar (50) is located between the blade (30) and the edge of the body (10).

7. Submersible sewage pump cutting impeller according to claim 6, characterized in that the front end of the auxiliary cutting bars (50) is arranged close to the rear end of the blades (30).

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