Submersible pump with anti-backflow effect

Abstract

The submersible pump with the backflow prevention effect comprises a flow guide shell body, a plurality of first water permeable holes are evenly formed in the outer side of the circumference, located at the bottom, of the flow guide shell body, a connecting pipe is fixedly connected to the inner wall of the circumference of the flow guide shell body, and the two ends of the connecting pipe penetrate through the flow guide shell body. A notch is formed in the circumferential wall, located at the bottom, of the connecting pipe, a plurality of second water permeable holes are evenly formed in the circumferential wall, located in the flow guide shell body, of the connecting pipe, and the inner wall of one side of the connecting pipe is rotationally connected with a spiral piece making contact with the circumferential inner wall of the connecting pipe through a bearing. According to the utility model, not only can the second permeable hole be effectively prevented from being blocked by impurities such as gravels and the like through the matching use of the connecting pipe and the spiral sheet, so that the normal circulation of water flow is ensured, but also the liquid can only flow unidirectionally along a preset direction through the matching use of the baffle plate and the spring, and the reverse flow phenomenon is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible pump technical field especially having the submersible pump with the backflow prevention effect. BACKGROUND

[0002] The design of the flow guide shell is to some extent to ensure that the water flow can effectively and uniformly enter the inside of the pump body, thereby improving the overall efficiency and performance of the pump.

[0003] However, when the groundwater or sewage with high sand content is used for the operation of the submersible pump, the impurities such as sand and gravel are easy to accumulate through the small pore diameter of the filter screen, which limits the normal circulation of the water flow, causes the backflow, and further reduces the efficiency of the pump. This accumulation not only increases the load of the motor, but also may cause blockage, so that the submersible pump performs poorly during the working process, and even may cause damage or failure of the pump body. SUMMARY

[0004] The utility model discloses a submersible pump with backflow prevention effect to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The submersible pump with backflow prevention effect comprises a flow guide shell body, a plurality of first water permeable holes are uniformly arranged on the outer side of the circumference of the bottom of the flow guide shell body, a connecting pipe is fixedly connected to the inner wall of the circumference of the flow guide shell body, and the two ends of the connecting pipe penetrate through the flow guide shell body, a notch is arranged on the wall of the circumference of the bottom of the connecting pipe, a plurality of second water permeable holes are uniformly arranged on the wall of the circumference of the inside of the connecting pipe, a helical blade in contact with the inner wall of the circumference of the connecting pipe is rotatably connected to the inner wall of one side of the connecting pipe through a bearing, and a driving mechanism for driving the helical blade to rotate is arranged on the outer wall of one side of the connecting pipe.

[0007] As a further scheme of the utility model, the driving mechanism comprises a submersible motor fixedly connected to the outer wall of one side of the connecting pipe, and the output shaft of the submersible motor is fixed to the helical blade through the connecting pipe.

[0008] As a further scheme of the utility model, a protective shell is fixedly connected to the outer wall of one side of the connecting pipe, and the protective shell is in a sealed state.

[0009] As a further scheme of the utility model, the circumferential outer wall of the connecting pipe is uniformly fixedly connected with multiple sliding cylinders, the inner wall of each sliding cylinder is slidably connected with a sliding rod, one end of the sliding rod is fixedly connected with a baffle in contact with the connecting pipe, the inner wall of each sliding cylinder is provided with a sliding groove, the other end of each sliding rod is fixedly connected with a sliding block that cooperatively slides with the sliding groove, and the circumferential outer wall of each sliding rod is provided with a spring, one end of the spring is in contact with the sliding block, and the other end of the spring is in contact with the sliding cylinder.

[0010] As a further scheme of the utility model, the baffle is fixedly connected with a sealing gasket on one side, and the sealing gasket is in contact with the connecting pipe.

[0011] As a further scheme of the utility model, the top end of the flow guide shell body is fixedly connected with a flange plate.

[0012] As a further scheme of the utility model, the inner wall and the outer wall of the flow guide shell body are both sprayed with a wear-resistant coating that increases the wear resistance of the flow guide shell body.

[0013] The utility model has the advantages of:

[0014] 1. The utility model uses the connecting pipe and the spiral piece in cooperation, effectively avoids the blockage of the second water-permeable hole by impurities such as sand and gravel, thereby ensuring the normal flow of water and greatly improving the working efficiency of the pump.

[0015] 2. The utility model uses the baffle and the spring in cooperation, ensures that the liquid can only flow in a predetermined direction, effectively prevents the occurrence of reverse flow, and improves the stability and directionality of liquid flow.

[0016] 3. The utility model uses the wear-resistant coating, significantly improves the wear resistance of the flow guide shell body, enables the flow guide shell body to withstand higher wear during use, and thereby effectively prolongs the service life of the flow guide shell body. DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the submersible pump with the anti-backflow effect proposed by the utility model;

[0018] Figure 2 It is a sliding cylinder sectional view structure schematic diagram of the submersible pump with the anti-backflow effect proposed by the utility model;

[0019] Figure 3 It is a partial sectional view structure schematic diagram of the submersible pump with the anti-backflow effect proposed by the utility model;

[0020] Figure 4 It is a connecting pipe structure schematic diagram of the submersible pump with the anti-backflow effect proposed by the utility model.

[0021] In the figure: 1, sliding cylinder; 2, guide shell body; 3, connecting pipe; 4, protective shell; 5, first water-permeable hole; 6, baffle; 7, sealing gasket; 9, sliding rod; 10, spring; 11, sliding groove; 12, sliding block; 13, second water-permeable hole; 14, spiral blade; 15, notch. DETAILED DESCRIPTION

[0022] It should be noted that the terms "first", "second" and the like in the description and claims of the application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence, so that the embodiments of the application described herein, based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the application.

[0023] Reference Figures 1-4 , the anti-backflow effect of the submersible pump, including guide shell body 2, the inner wall and the outer wall of guide shell body 2 are sprayed with wear-resistant coating to increase the wear resistance of guide shell body 2, through the wear-resistant coating, thereby greatly increasing the wear resistance of guide shell body 2, which means that guide shell body 2 can withstand higher wear during use, thereby prolonging its service life, the top of guide shell body 2 is welded with a flange, the guide shell body 2 is connected through the flange, the bottom of the guide shell body 2 is evenly provided with a plurality of first water-permeable holes 5, the inner wall of the guide shell body 2 is welded with a connecting pipe 3, and the two ends of the connecting pipe 3 pass through the guide shell body 2, the connecting pipe 3 is provided with a notch 15 on the circumferential wall at the bottom position, the connecting pipe 3 is evenly provided with a plurality of second water-permeable holes 13 on the circumferential wall inside the guide shell body 2, the connecting pipe 3 is rotatably connected with a spiral blade 14 in contact with the inner wall of the connecting pipe 3 through a bearing, the outer wall of one side of the connecting pipe 3 is provided with a driving mechanism for driving the spiral blade 14 to rotate, the driving mechanism includes a submersible motor fixed on the outer wall of one side of the connecting pipe 3 through bolts, and the output shaft of the submersible motor is fixed with the spiral blade 14 through the connecting pipe 3, the submersible motor is started to drive the spiral blade 14 to rotate, the stable operation in harsh environment such as immersion is realized through the waterproof design of the submersible motor, ensuring that the motor can be immersed in water for a long time without water leakage risk, the driving mechanism is started, the driving mechanism drives the spiral blade 14 to rotate, the spiral blade 14 pushes the sand and other impurities attached to the inner wall of the connecting pipe 3 at the position of the second water-permeable hole 13 to move outward, so that the sand and other impurities are pushed out from one end of the connecting pipe 3, thereby preventing the sand and other impurities from blocking the second water-permeable hole 13, thereby limiting the normal flow of water, further causing the problem of reducing the efficiency of the pump.

[0024] The utility model discloses, the outer wall of one side of submersible motor of connecting pipe 3 is welded with the protective housing 4, and the protective housing 4 is in sealed state, and the circumferential outer wall of connecting pipe 3 is evenly welded with a plurality of slide cylinders 1, and the inner wall of a plurality of slide cylinders 1 is slidably connected with slide rod 9, and one end of slide rod 9 is welded with the baffle 6 in contact with connecting pipe 3, and one side of baffle 6 is bonded with sealing gasket 7, and sealing gasket 7 is in contact with connecting pipe 3, and the sealing property between baffle 6 and the discharge port of connecting pipe 3 is greatly improved through sealing gasket 7, the inner wall of a plurality of slide cylinders 1 is provided with the sliding slot 11, and the other end of a plurality of slide rods 9 is welded with the sliding block 12 that cooperates with the sliding of sliding slot 11, and the circumferential outer wall of a plurality of slide rods 9 is equipped with spring 10, and one end of spring 10 is in contact with sliding block 12, and the other end is in contact with slide cylinder 1, and sliding block 12 and slide rod 9 are moved inwards through the elastic force of spring 10, make baffle 6 and the discharge port of one side of connecting pipe 3 contact, and the discharge port of connecting pipe 3 is blocked, thereby preventing the backflow of liquid, ensuring that the liquid can only flow in the predetermined direction, avoiding the occurrence of backflow phenomenon, and the submersible motor is protected through the protective housing 4, preventing the submersible motor from being damaged due to external factors, thereby reducing the waterproofness of the submersible motor.

[0025] Working principle: when needing to use, water flows through the suction of submersible pump, enters the inside of reverse flow shell body 2 through first water-permeable hole 5, enters the submersible pump through second water-permeable hole, and simultaneously starts submersible motor, and the submersible motor drives helical blade 14 to rotate, drives helical blade 14 to rotate, and helical blade 14 pushes the sand and other impurities adhered to the inner wall of connecting pipe 3 at the position of second water-permeable hole 13 to move outward, and the sand and other impurities press baffle 6, make baffle 6 and connecting pipe contact, and the sand and other impurities are pushed out from one end of connecting pipe 3, thereby preventing the sand and other impurities from blocking second water-permeable hole 13.

[0026] The utility model discloses have carried out the description through the above embodiment, and the person skilled in the art can understand that the utility model is not limited to the above embodiment, and still can make more kinds of modifications according to the teaching of the utility model, and these modifications all fall within the range of the utility model claimed protection, and the protection scope of the utility model is defined by the attached claim and its equivalent range.

Claims

1. A submersible pump with anti-backflow effect, comprising a guide shell body (2), characterized in that, The flow guide shell body (2) has a plurality of first water-permeable holes (5) evenly opened on the outer circumference of the bottom. The inner circumference of the flow guide shell body (2) is fixedly connected to a connecting pipe (3), and both ends of the connecting pipe (3) pass through the flow guide shell body (2). The circumference of the connecting pipe (3) at the bottom position has a slot (15). The circumference of the connecting pipe (3) inside the flow guide shell body (2) has a plurality of second water-permeable holes (13) evenly opened. The inner wall of one side of the connecting pipe (3) is rotatably connected to a spiral blade (14) that contacts the inner circumference of the connecting pipe (3) through a bearing. The outer wall of one side of the connecting pipe (3) is provided with a driving mechanism that drives the spiral blade (14) to rotate.

2. The submersible pump with anti-backflow effect according to claim 1, characterized in that, The drive mechanism includes a submersible motor fixedly connected to the outer wall of one side of the connecting pipe (3), and the output shaft of the submersible motor passes through the connecting pipe (3) and is fixed to the spiral blade (14).

3. The submersible pump with anti-backflow effect according to claim 2, characterized in that, The connecting pipe (3) is fixedly connected to a protective shell (4) on the outer wall of one side of the submersible motor, and the protective shell (4) is in a sealed state.

4. The submersible pump with anti-backflow effect according to claim 3, characterized in that, Multiple sliding cylinders (1) are uniformly fixedly connected to the outer circumference of the connecting pipe (3). Sliding rods (9) are slidably connected to the inner walls of the multiple sliding cylinders (1). A baffle (6) that contacts the connecting pipe (3) is fixedly connected to one end of the sliding rod (9). Sliding grooves (11) are opened on the inner walls of the multiple sliding cylinders (1). A slider (12) that slides in cooperation with the sliding groove (11) is fixedly connected to the other end of the multiple sliding rods (9). A spring (10) is provided on the outer circumference of the multiple sliding rods (9). One end of the spring (10) contacts the slider (12), and the other end contacts the sliding cylinder (1).

5. The submersible pump with anti-backflow effect according to claim 4, characterized in that, A sealing gasket (7) is fixedly connected to one side of the baffle (6), and the sealing gasket (7) is in contact with the connecting pipe (3).

6. The submersible pump with anti-backflow effect according to claim 1, characterized in that, A flange is fixedly connected to the top of the flow guide shell body (2).

7. The submersible pump with anti-backflow effect according to claim 6, characterized in that, The inner and outer walls of the flow guide shell body (2) are both coated with a wear-resistant coating to increase the wear resistance of the flow guide shell body (2).

Images