Double-impeller vertical pump

Abstract

The utility model discloses a double-impeller vertical pump. Comprising a motor (1), an impeller rod (2) connected with the motor (1), a pump body (3) connected with the motor (1) and wrapping the impeller rod (2), a pump head (4) connected with the pump body (3), a water outlet pipe (5) connected with the side of the pump head (4), an impeller set (6) arranged in the pump head (4) and connected with the impeller rod (2), a front cover (8) connected with the pump head (4) and an extension pipe (9) connected with the front cover (8). And the water inlet part (10) is connected with the extension pipe (9). The vertical pump has the beneficial effects that two-stage or more than two-stage blade centrifugal actions are carried out through the impeller group, so that the centrifugal force is improved, and the problem that the centrifugal force in a common extension pipe vertical pump is insufficient is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical appliances, specifically relates to a double-impeller vertical pump. BACKGROUND

[0002] At present, the vertical pump on the market needs to use the extension pipe to extend the water inlet flow channel to adapt to some working conditions, and the ordinary vertical pump has an excessively long water inlet flow channel, which leads to insufficient water suction.

[0003] Therefore, it is urgent to develop a double-impeller vertical pump with strong centrifugal force. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to solve one of the above technical problems at least to some extent.

[0005] Therefore, the utility model aims to provide a double-impeller vertical pump with strong centrifugal force.

[0006] To achieve the above purpose, the utility model embodiment discloses a double-impeller vertical pump, which comprises a motor 1, an impeller rod 2 connected with the motor 1, a pump main body 3 connected with the motor 1 and covering the impeller rod 2, a pump head 4 connected with the pump main body 3, a water outlet pipe 5 connected with the side direction of the pump head 4, an impeller set 6 arranged in the pump head 4 and connected with the impeller rod 2, a front cover 8 connected with the pump head 4, an extension pipe 9 connected with the front cover 8, and a water inlet part 10 connected with the extension pipe 9.

[0007] In addition, the double-impeller vertical pump according to the above technical solution of the utility model can also have the following additional technical features.

[0008] Optionally, the water inlet part 10 is a check valve.

[0009] Optionally, the double-impeller vertical pump further comprises an impeller nut 7 connected between the impeller rod 2 and the impeller set 6.

[0010] Optionally, the impeller set 6 comprises an impeller cover 61, a centrifugal impeller 63 connected with the impeller cover 61, a guide impeller 62 sleeved between the impeller cover 61 and the centrifugal impeller 63, and a shaft sleeve 64 connected above; the shaft sleeve 64 is connected with the impeller rod 2.

[0011] Optionally, the inner sides of the centrifugal impeller 63 and the guide impeller 62 are both provided with blades.

[0012] Optionally, the water outlet pipe 5 comprises an elbow pipe 51 connected with the pump head 4, and an outlet pipe 52 connected with the elbow pipe 51.

[0013] The beneficial effect of the utility model lies in: the two-stage or more than two-stage blade centrifugal action is carried out through the impeller group, so that the centrifugal force is improved, and the problem of insufficient centrifugal force in the ordinary extension pipe vertical pump is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an explosion view of a double-impeller vertical pump provided by an embodiment of the utility model;

[0015] Fig. 2 It is a structural schematic view of a double-impeller vertical pump provided by an embodiment of the utility model;

[0016] Fig. 3 It is an explosion view of an impeller group provided by an embodiment of the utility model.

[0017] REFERENCE SIGNS:

[0018] 1-motor, 2-impeller rod, 3-pump main body, 4-pump head, 5-water outlet pipe, 51- elbow pipe, 52-outlet pipe, 6-impeller group, 61-impeller cover, 63-centrifugal impeller, 62-guide vane impeller, 64-shaft sleeve, 7-impeller nut, 8-front cover, 9-extension pipe, 10-water inlet part. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or parts / elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0020] The double-impeller vertical pump of the utility model embodiment is described below in combination with the drawings.

[0021] Fig. 1 It is an explosion view of a double-impeller vertical pump provided by an embodiment of the utility model; Fig. 2 It is a structural schematic view of a double-impeller vertical pump provided by an embodiment of the utility model; Fig. 3 It is an explosion view of an impeller group provided by an embodiment of the utility model. As shown in the drawing, Figs. 1-3 The double-impeller vertical pump comprises a motor 1, an impeller rod 2 connected with the motor 1, a pump main body 3 connected with the motor 1 and covering the impeller rod 2, a pump head 4 connected with the pump main body 3, a water outlet pipe 5 connected with the pump head 4 in the lateral direction, an impeller group 6 arranged in the pump head 4 and connected with the impeller rod 2, a front cover 8 connected with the pump head 4, an extension pipe 9 connected with the front cover 8, and a water inlet part 10 connected with the extension pipe 9.

[0022] According to one embodiment of the utility model, the impeller group 6 includes an impeller cover 61, a centrifugal impeller 63 connected with the impeller cover 61, a guide vane 62 sleeved between the impeller cover 61 and the centrifugal impeller 63, and a shaft sleeve 64 connected above; the shaft sleeve 64 is connected with the impeller rod 2.

[0023] According to one embodiment of the utility model, the inner side of the centrifugal impeller 63 and the guide vane 62 is provided with a vane.

[0024] Specifically, the impeller group 6 is provided with two-stage vanes, liquid is first sucked by the guide vane 62, a first-stage centrifugal force is provided in the vane of the guide vane 62, and then released to the centrifugal impeller 63 above for a second-stage centrifugal action, so that double-stage acceleration is formed, and then enters the flow channel and is guided to the water outlet pipeline.

[0025] Similarly, the impeller group can also adopt more than two-stage impellers for centrifugal action, so that the centrifugal force is improved.

[0026] According to the double-impeller vertical pump of the utility model, two-stage or more than two-stage vane centrifugal action is carried out through the impeller group, so that the centrifugal force is improved, and the problem of insufficient centrifugal force in the ordinary extension pipe vertical pump is solved.

[0027] According to one embodiment of the utility model, the water inlet part 10 is a check valve.

[0028] Specifically, the check valve here is also called a bottom valve, which can prevent liquid from flowing into the pipeline and then backflowing, ensure that the pressure in the pipeline will not be reduced due to backflow, and thus ensure that the subsequent centrifugal action is reliable.

[0029] According to one embodiment of the utility model, the impeller nut 7 connecting the impeller rod 2 and the impeller group 6 is further included.

[0030] Specifically, the impeller rod 2 and the impeller group 6 can be fixedly connected through the impeller nut 7, the connection is reliable, and the impeller rod 2 and the impeller group 6 are convenient to disassemble and maintain.

[0031] According to one embodiment of the utility model, the water outlet pipeline 5 includes a bend pipe 51 connected with the pump head 4, and an outlet pipe 52 connected with the bend pipe 51.

[0032] Specifically, when the user needs the flow channel to be straight in and straight out, the water outlet pipeline 5 can be designed as a combination connection of the bend pipe 51 and the outlet pipe 52, and the combination connection mode is convenient for modular production and reduces production cost.

[0033] The above embodiment is a preferred implementation scheme of the application, in addition to this, the application can also be implemented in other ways, and any obvious replacement without departing from the concept of the application is within the protection scope of the application.

Claims

1. A double-impeller vertical pump, characterized in that, Include: The motor (1), the impeller rod (2) connected with the motor (1), the pump body (3) connected with the motor (1) and covering the impeller rod (2), the pump head (4) connected with the pump body (3), the water outlet pipe (5) connected with the side direction of the pump head (4), the impeller group (6) arranged in the pump head (4) and connected with the impeller rod (2), the front cover (8) connected with the pump head (4), the extension pipe (9) connected with the front cover (8), and the water inlet part (10) connected with the extension pipe (9).

2. A double-impeller vertical pump according to claim 1, characterized in that: The water inlet part (10) is a check valve.

3. A double-impeller vertical pump according to claim 1, characterized in that: It also includes an impeller nut (7) connecting the impeller rod (2) and the impeller group (6).

4. A double-impeller vertical pump according to claim 1, characterized in that: The impeller group (6) includes an impeller cover (61), a centrifugal impeller (63) connected with the impeller cover (61), a guide impeller (62) sleeved between the impeller cover (61) and the centrifugal impeller (63), and a shaft sleeve (64) connected above; the shaft sleeve (64) is connected with the impeller rod (2).

5. A double-impeller vertical pump according to claim 4, characterized in that: The inner side of the centrifugal impeller (63) and the guide impeller (62) is provided with blades.

6. A double-impeller vertical pump according to claim 1, characterized in that: The water outlet pipe (5) includes a bend pipe (51) connected with the pump head (4), and an outlet pipe (52) connected with the bend pipe (51).

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