Submerged pump with efficient water inlet shell

Abstract

The utility model discloses a submerged pump with an efficient water inlet shell, which belongs to the technical field of submerged pumps, comprises a pump body, and is characterized in that a first shell is arranged at the lower part of the pump body, a second shell is arranged at the lower part of the first shell, the water inlet shell is arranged at the lower part of the second shell, and a bottom plate is arranged in the center of the lower part of the water inlet shell; the water inlet shell is provided with a first shell body and a second shell body, the periphery of the first shell body and the periphery of the second shell body are provided with a pull belt, the upper portion of the pull belt is fixedly connected with the pump body, a connecting groove is formed in the position, corresponding to the pull belt, of the water inlet shell in a penetrating mode, and the lower portion of the pull belt is connected with the connecting groove in an inserted mode. And meanwhile, the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a submersible pump provided with a high-efficiency water inlet shell. Background Art

[0002] The submersible pump is a widely used pump. During operation, its impeller, casing and other flow-passing parts are immersed in the conveyed material. The surface of the casing is penetrated with holes for the passage of materials. The apertures on the surface of traditional casings are generally larger. Although this can improve work efficiency, impurities in the material are more likely to enter the interior of the casing, and even cause damage to internal structures such as the impeller. The time taken for maintenance and replacement leads to a decrease in overall work efficiency. In addition, the large aperture limits the number and arrangement of holes, and the improvement in work efficiency is not obvious. Based on this situation, how to ensure the working efficiency of the submersible pump while avoiding impurities in the material from entering the interior of the casing as much as possible is becoming an increasingly urgent problem that relevant technical personnel need to solve. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a submersible pump provided with a high-efficiency water inlet shell.

[0004] A submersible pump with a high-efficiency water inlet shell comprises a pump body, and is characterized in that a first shell is arranged at the lower part of the pump body, a second shell is arranged at the lower part of the first shell, a water inlet shell is arranged at the lower part of the second shell, a bottom plate is arranged at the center position of the lower part of the water inlet shell, a drawstring is arranged at the periphery of the first shell and the second shell, the upper part of the drawstring is fixedly connected to the pump body, a connecting groove is arranged through the corresponding positions of the water inlet shell and the drawstring, and the lower part of the drawstring is plugged into the connecting groove.

[0005] Furthermore, an upper connecting portion is horizontally arranged on the upper portion of the water inlet shell, and the upper connecting portion is fitted with the second shell body.

[0006] Furthermore, a lower connecting portion is horizontally arranged at the lower part of the water inlet shell, an upper connecting hole is vertically penetrated inside the lower connecting portion, a vertical through hole and a lower connecting hole are vertically penetrated inside the bottom plate, the lower connecting hole is aligned with the upper connecting hole, and the connecting groove corresponds to the position of the upper connecting hole.

[0007] Furthermore, an inner transition portion, a horizontal portion, and an outer transition portion are sequentially arranged on the periphery of the lower connecting portion from near to far, the inner transition portion is an upward inclined plane structure, the outer transition portion is an arc-shaped curved surface structure, and the bottom plate is located on the inner side of the inner transition portion.

[0008] Furthermore, transverse through holes are horizontally arranged through the side of the water inlet shell, and the transverse through holes are arranged in a rectangular array. The number of the transverse through holes is 3 groups, and the number of the connecting grooves and the upper connecting holes is 3 groups. The positions of the transverse through holes correspond to those of the upper connecting holes, and the transverse through holes and the connecting grooves are equidistantly arranged.

[0009] The beneficial effects of the submersible pump provided with a high-efficiency water inlet shell of the utility model are:

[0010] 1. Compared with the traditional large-aperture holes, the diameters of the vertical through holes and transverse through holes in this submersible pump are significantly reduced, which effectively prevents impurities in the material from entering the water inlet shell. The probability of the impeller and other internal structures being damaged by impurities is significantly reduced, and the work efficiency is preliminarily guaranteed. At the same time, the same area can accommodate more small-aperture vertical through holes and transverse through holes. Combined with the rectangular array arrangement, the material passing speed is fully guaranteed, thereby further improving the work efficiency;

[0011] 2. The pull belt and the connecting groove effectively ensure the stability of the connection between the water inlet shell and the pump body. The fit between the upper connecting part and the second shell further ensures the stability of the water inlet shell. The corresponding design of the lower connecting hole and the upper connecting hole effectively ensures the stability of the connection between the bottom plate and the water inlet shell, thereby effectively ensuring the stability of the working process and providing further bonus for the improvement of work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the utility model.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0016] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0017] Figure 5 This is a schematic diagram of the structure of the water inlet shell of the utility model (I);

[0018] Figure 6 This is a schematic structural diagram of the water inlet shell of the utility model (II).

[0019] Among them, 1-first shell, 2-second shell, 3-water inlet shell, 4-pump body, 5-bottom plate, 6-pull belt, 7-connecting groove, 8-vertical through hole, 9-upper connecting hole, 10-lower connecting part, 11-upper connecting part, 12-lower connecting hole, 13-inner transition part, 14-horizontal part, 15-outer transition part, 16-transverse through hole. DETAILED DESCRIPTION

[0020] In order to make the description clearer, a submersible pump with a high-efficiency water inlet shell of the utility model is further described in conjunction with the drawings of the specification.

[0021] A submersible pump with a high-efficiency water inlet shell includes a pump body 4, characterized in that a first shell 1 is arranged at the lower part of the pump body 4, a second shell 2 is arranged at the lower part of the first shell 1, a water inlet shell 3 is arranged at the lower part of the second shell 2, a bottom plate 5 is arranged at the center position of the lower part of the water inlet shell 3, a drawstring 6 is arranged at the periphery of the first shell 1 and the second shell 2, the upper part of the drawstring 6 is fixedly connected to the pump body 4, a connecting groove 7 is arranged through the corresponding position of the water inlet shell 3 and the drawstring 6, and the lower part of the drawstring 6 is plugged into the connecting groove 7.

[0022] Furthermore, an upper connecting portion 11 is horizontally disposed on the upper portion of the water inlet shell 3 , and the upper connecting portion 11 is in contact with the second shell 2 .

[0023] Furthermore, a lower connecting portion 10 is horizontally arranged at the lower part of the water inlet shell 3, an upper connecting hole 9 is vertically penetrated inside the lower connecting portion 10, a vertical through hole 8 and a lower connecting hole 12 are vertically penetrated inside the bottom plate 5, the lower connecting hole 12 is aligned with the upper connecting hole 9, and the connecting groove 7 corresponds to the position of the upper connecting hole 9.

[0024] Furthermore, the outer periphery of the lower connecting portion 10 is provided with an inner transition portion 13, a horizontal portion 14, and an outer transition portion 15 in sequence from near to far. The inner transition portion 13 is an upward inclined plane structure, the outer transition portion 15 is an arc-shaped curved surface structure, and the bottom plate 5 is located on the inner side of the inner transition portion 13.

[0025] Furthermore, transverse through holes 16 are horizontally provided through the side of the water inlet shell 3, and the transverse through holes 16 are provided in a rectangular array. The number of the transverse through holes 16 is 3 groups, and the number of the connecting grooves 7 and the upper connecting holes 9 are both 3 groups. The positions of the transverse through holes 16 and the upper connecting holes 9 correspond to each other, and the transverse through holes 16 and the connecting grooves 7 are equidistantly arranged alternately.

[0026] The working principle of a submersible pump with an efficient water inlet shell of the utility model is as follows: the drawstring 6 stably connects the water inlet shell 3 with the pump body 4, aligns the lower connecting hole 12 with the upper connecting hole 9, and tightens the matching bolts inside the lower connecting hole 12 and the upper connecting hole 9. At this point, the assembly work is completed, and the submersible pump is placed in a working scene, so that the water inlet shell 3 is immersed in the material to be transported, and the pump body 4 is started. The impeller located at the end of the output shaft of the pump body 4 and the inner side of the water inlet shell 3 begins to rotate, and the external material enters the water inlet shell 3 through the vertical through hole 8 and the transverse through hole 16, and is further transported upward. In this process, the appropriately small sizes of the vertical through hole 8 and the transverse through hole 16 always isolate the impurities in the material outside the water inlet shell 3 to prevent the internal structures such as the impeller from being damaged by impurities. Combined with the lower part of the drawstring 6 plugged into the connecting groove 7 and the upper connecting part 11 fitting with the second shell 2 to ensure the stability of the water inlet shell 3, the impeller can continue to operate with sufficient stability and efficiently transport the material.

[0027] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A submersible pump with a high-efficiency water inlet shell, comprising a pump body, characterized in that: A first shell is arranged at the lower part of the pump body, a second shell is arranged at the lower part of the first shell, a water inlet shell is arranged at the lower part of the second shell, a bottom plate is arranged at the center position of the lower part of the water inlet shell, a drawstring is arranged at the periphery of the first shell and the second shell, the upper part of the drawstring is fixedly connected to the pump body, a connecting groove is arranged through the corresponding positions of the water inlet shell and the drawstring, and the lower part of the drawstring is plugged into the connecting groove.

2. A submersible pump with a high-efficiency water inlet shell according to claim 1, characterized in that: An upper connecting portion is horizontally arranged on the upper portion of the water inlet shell, and the upper connecting portion is fitted with the second shell body.

3. A submersible pump with a high-efficiency water inlet shell according to claim 1, characterized in that: A lower connecting portion is horizontally arranged at the lower part of the water inlet shell, an upper connecting hole is vertically penetrated inside the lower connecting portion, a vertical through hole and a lower connecting hole are vertically penetrated inside the bottom plate, the lower connecting hole is aligned with the upper connecting hole, and the connecting groove corresponds to the position of the upper connecting hole.

4. A submersible pump with a high-efficiency water inlet shell according to claim 3, characterized in that: The periphery of the lower connecting part is provided with an inner transition part, a horizontal part and an outer transition part in sequence from near to far. The inner transition part is an upward inclined plane structure, the outer transition part is an arc-shaped curved surface structure, and the bottom plate is located inside the inner transition part.

5. A submersible pump with a high-efficiency water inlet shell according to claim 3, characterized in that: The side surface of the water inlet shell is horizontally penetrated by transverse through holes, the transverse through holes are arranged in a rectangular array, the number of the transverse through holes is 3 groups, the number of the connecting grooves and the upper connecting holes are both 3 groups, the positions of the transverse through holes correspond to those of the upper connecting holes, and the transverse through holes and the connecting grooves are equidistantly arranged.

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