CN2641350Y

CN2641350Y - Submersible pump

Info

Publication number: CN2641350Y
Application number: CN 03274294
Authority: CN
Inventors: 陆少安
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-04
Filing date: 2003-09-04
Publication date: 2004-09-15
Anticipated expiration: 2013-09-04

Abstract

The utility model relates to a submersible pump which comprises a pump body and a motor that is applied to drive the pump body to work. The pump body is provided with an inlet and an outlet. The outer surface of the motor is provided with a channel that is communicated with the outlet of the pump body and is provided with an outlet. Once the submersible pump is actuated, the utility model can maintain the shell of the motor is full of water. The utility model can cool the pump motor under the circumstance of no water submerging the motor so as to prevent the motor from damaging by the conditions of overheated motor or the motor can not stop.

Description

Submersible pump

Technical field

The utility model relates to a kind of pump, more particularly, relates to a kind of submersible pump.

Background technique

Existing submersible pump generally includes the pump housing and is arranged on motor on the pump housing integratedly, and the pump housing comprises pump case, is formed with pump chamber in pump case, and the bottom of pump case is provided with water inlet, and the sidewall of pump case is formed with water outlet, and water outlet is connected with an outlet pipe.The main shaft of pump motor inserts in the pump chamber of the pump housing, and an impeller is housed thereon.During submersible pump work, the pump motor drives impeller is rotated in pump chamber, will discharge from outlet pipe from the water that water inlet is pumped into the pump chamber.

Yet existing submersible pump must place pump motor and flood in the water and could cool off to motor, draws water in case meet large size, pump motor can be had by water logging or misoperation starts, time one is long, under the situation that motor overheating or pump cannot stop, the possibility that burns out motor is just arranged.

Based on above-mentioned technical problem, the purpose of this utility model is to provide a kind of submersible pump, in case start, just keeps motor housing that water is arranged always, with also can the coolant pump motor under anhydrous situation of flooding pump motor.

Another purpose of the present utility model is to provide a kind of submersible pump with self-flow type to the motor cooling, has smooth and easy, the advantages of simple structure and simple of current.

Summary of the invention

For the utility model that achieves the above object has adopted following technological scheme: a kind of submersible pump is provided, comprise the pump housing and be used to drive the motor that the described pump housing moves, the described pump housing has water inlet and weep hole, the outer surface of described motor is provided with the water channel that is communicated with the weep hole of the described pump housing, and described water channel has water outlet.

In submersible pump described in the utility model, described water channel is to be socketed on outer shell of described motor and the pump housing and the gap between motor housing and the pump case; The described motor housing and the pump case outside are equipped with four columns; The described pump housing has four weep holes with described column interlaced arrangement; Described motor is located at the top of the described pump housing, and connects by four columns in the described motor casing and the pump case outside; The described pump housing comprises pump case and impeller, and described pump case has pump chamber, and described impeller is located in the described pump chamber and is arranged in the rotating shaft of described motor; Described water outlet is located at the top of described shell, and is communicated with water output connector; The bottom of described pump case is provided with flanging, and the bottom of described shell is provided with the lip limit, and described shell and pump case connect by described flanging and described lip limit; Described water inlet is located on the impeller adjustable cap of described pump case below, and described weep hole is located at the sidewall of described pump case.

Owing to adopted technique scheme, submersible pump in the utility model is in case start, just keep motor housing that water is arranged always, also can the coolant pump motor under anhydrous situation of flooding pump motor, thus burn out motor under the situation that can avoid motor overheating or pump cannot stop.

Description of drawings

Fig. 1 is the plan view of the utility model submersible pump;

Fig. 2 is the sectional view of B-O-C line among Fig. 1;

Fig. 3 is the sectional view of A-A line among Fig. 2;

Fig. 4 is the sectional view of D-D line among Fig. 2.

Embodiment

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 to Fig. 4 shows the submersible pump in the preferred embodiment of the present utility model.As shown in the figure, the utility model submersible pump mainly comprise the pump housing 10, be arranged on the motor 20 on the pump housing 10 and be socketed on the pump housing 10 and motor 20 on shell 30.

The pump housing 10 comprises pump case 11, is formed with pump chamber 12 in the pump case 11.Be formed with four radially equally distributed weep holes 13 on the sidewall of pump case 11, the bottom of pump case 11 is provided with export-oriented flanging 17.Four pump housing columns 18 that stagger with weep hole 13 are arranged on the outside of pump case 11, and one-body molded with pump case 11.The rotating shaft 21 of motor 20 is inserted in the pump chamber 11 and impeller 14 is housed thereon, and impeller 14 can be in rotation in pump chamber 12 under the driving of motor 20.The below of impeller 14 is provided with impeller adjustable cap 15, and the central position of impeller adjustable cap 15 offers water inlet 16, and the below of water inlet 16 also is equipped with filter screen 19.The corresponding pump housing column 18 in the outside of motor housing 22 is provided with four columns 23, and column 23 is also one-body molded with motor housing 22.Four stud 24 pass impeller adjustable cap 15 and pump housing column 18, and are inserted in the motor housing column 23, and the pump housing 10 and motor 20 closely are linked together.

Shell 30 is a cylinder-like structure that Open Side Down, and its internal diameter is greater than the external diameter of pump case 11 and motor housing 22, and inner wall surface thereof is close to the outside of pump housing column 18 and motor housing shell upright 23.Pump housing column 18 and motor housing column 23 are separated into four water channels 34 that are communicated with drain opening 13 with pump case 11 and motor housing 22 with space between the shell 30.Pump housing column 18 and motor column 23 make from the water of pump chamber 12 discharges mobile smooth and easy, have also played stabilization for shell 30 is installed.The bottom of shell 30 is provided with outside lip limit 31, and lip limit 31 combines with the flanging 17 of pump case 11 bottoms by bolt 34.Junction between lip limit 31 and the flanging 17 is provided with seal ring (not label).The roof of shell 30 offers a water outlet 32, and water output connector 33 is installed in the upside of the roof of shell 30 by bolt, and is communicated with water outlet 32.

Below in conjunction with working procedure the utility model is described further.

After motor 20 is connected power supply, the impeller 14 that drives the pump housing 10 rotates at pump chamber 12, with water from water inlet 16 suction pump chambers 12, and be drained into by weep hole 13 in the water channel 34 of the gap formation between pump case 11 and motor housing 22 and the shell 30, converge above motor 20 through sluice 34 again, discharge by the water outlet 32 and the water output connector 33 at shell 30 tops at last.Because all earlier will be through behind the water channel 34 on motor housing 22 surfaces from the water that water inlet 16 enters the pump housing 10, discharge by the water outlet at motor 20 tops again, therefore no matter whether extraneous water floods motor 20, motor housing 22 outer surfaces all have water always, also can reach the effect of coolant pump motor 20.

Claims

1. submersible pump, comprise the pump housing and be used to drive the motor that the described pump housing moves, the described pump housing has water inlet and weep hole, it is characterized in that: the outer surface of described motor is provided with the water channel that is communicated with the weep hole of the described pump housing, and described water channel has water outlet.

2. submersible pump according to claim 1 is characterized in that: described water channel is to be socketed on shell on the described motor and the pump housing and the gap between motor housing and the pump case.

3. submersible pump according to claim 2 is characterized in that: the described motor housing and the pump case outside are equipped with four columns.

4. submersible pump according to claim 3 is characterized in that: the described pump housing has four weep holes with described column interlaced arrangement.

5. submersible pump according to claim 4 is characterized in that: described motor is located at the top of the described pump housing, and connects by four columns in the described motor casing and the pump case outside.

6. submersible pump according to claim 1 or 5, it is characterized in that: the described pump housing comprises pump case and impeller, and described pump case has pump chamber, and described impeller is located in the described pump chamber and is arranged in the rotating shaft.

7. submersible pump according to claim 6 is characterized in that: described impeller is arranged in the rotating shaft of described motor.

8. submersible pump according to claim 2 is characterized in that: described water outlet is located at the top of described shell, and is communicated with water output connector.

9. submersible pump according to claim 2 is characterized in that: the bottom of described pump case is provided with flanging, and the bottom of described shell is provided with the lip limit, and described shell and pump case connect by described flanging and described lip limit.

10. submersible pump according to claim 2 is characterized in that: described water inlet is located on the impeller adjustable cap of described pump case below, and described weep hole is located at the sidewall of described pump case.