Water pump sediment protection device

Abstract

The utility model relates to a sediment protection device for a water pump, which belongs to the technical field of sediment prevention tools for submersible pumps and comprises a fixed disc fixedly connected to the water pump, a protective cap used for blocking sediment is arranged on a protruding portion of the fixed disc and coaxially connected with a pump shaft, and the pump shaft drives the protective cap to rotate. The protective cap is arranged to block silt, the protective cap is matched with the fixing disc to enhance the grinding effect on the silt, the protective cap rotating at a high speed drives the smashed silt to be discharged through the lines, the silt is prevented from entering the pump body, and meanwhile the silt is prevented from being gathered.

Description

Technical Field

[0001] The utility model relates to a water pump silt protection device, belonging to the technical field of submersible pump sand prevention tools. Background Art

[0002] Usually, when taking water from a deep well, the submersible pump is placed at the bottom of the well. After a long period of use, the mud at the bottom of the well slowly settles near the pump body. When the submersible pump is running, the deposited mud is easy to enter the pump body from the pump shaft. The mud further wears the pump shaft and other components, eventually causing damage to the submersible pump.

[0003] At present, people use a kind of sand-proof cap to block mud and sand. After long-term practice, people find that this kind of sand-proof cap has the following disadvantages: the inner wall of the sand-proof cap is a smooth plane, which relies on the contact between the surfaces to achieve sealing. After a period of use, the mud and sand gradually invade the gap between the surfaces, and the sand-proof cap cannot discharge the mud and sand in the gap in time. Furthermore, under the rotation of the sand-proof cap, the mud and sand are further squeezed and eroded into the pump body along the gap, and finally the mud and sand damage the pump body. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a water pump sediment protection device to timely discharge sediment from the gap of the sand protection cap to prevent the sediment from further invading the pump body.

[0005] The utility model discloses a water pump sediment protection device, comprising: a fixed plate fixedly connected to the water pump, a protective cap for blocking sediment is arranged on the protruding part of the fixed plate, the protective cap is coaxially connected to the pump shaft, and the pump shaft can drive the protective cap to rotate;

[0006] The protective cap includes: a first plane arranged at the lower edge of the protective cap, and a second plane arranged at the inner top surface of the protective cap; the first plane and the second plane are both in contact with the fixing plate; the first plane and the second plane are respectively provided with first lines and second lines for grinding mud and sand.

[0007] Further, the fixing plate includes: a base, a first-level boss is provided on the base, the first-level boss includes: a first running-in surface provided on the first-level boss, and a grinding pattern is provided on the first running-in surface;

[0008] The first running-in surface is fitted with the first plane, and the first pattern cooperates with the grinding pattern to grind the sandstone;

[0009] A convex ring is arranged on the first-level boss, and a second running-in surface is arranged on the convex ring; and the second running-in surface contacts the second plane.

[0010] Furthermore, the protective cap is sleeved onto the convex ring, and the pump shaft drives the protective cap to rotate on the convex ring.

[0011] Furthermore, the inner wall of the protective cap abuts against the outer wall of the convex ring, and the outer wall of the convex ring is provided with a plurality of sealing grooves.

[0012] Furthermore, the pump shaft passes through the protective cap, and the protective cap abuts against the shaft head of the pump shaft.

[0013] Furthermore, a first pin hole is provided on the side of the protective cap, and a second pin hole is provided on one side of the pump shaft; the first pin hole and the second pin hole are connected by a pin shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model blocks the silt by arranging a protective cap, and the protective cap cooperates with a fixed plate to enhance the grinding effect on the silt, and the high-speed rotating protective cap drives the crushed silt to be discharged through the grooves, thereby blocking the silt from entering the pump body and preventing the silt from gathering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a water pump sediment protection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the protective cap structure of a water pump sediment protection device of the utility model;

[0018] Figure 3 This is a schematic diagram of the fixed plate structure of a water pump sediment protection device of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a water pump sediment protection device.

[0020] In the figure:

[0021] 1. Fixed plate; 101. Base; 102. Primary boss; 103. First running-in surface; 103a. Grinding lines; 104. Protruding ring; 105. Second running-in surface;

[0022] 2. Protective cap; 201. First plane; 201a. First grain; 202. Second plane; 202a. Second grain; 203. First pin hole;

[0023] 3. Pump shaft; 301. Second pin hole. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 4 As shown, this embodiment is implemented by the following technical solutions: a fixed plate 1, the fixed plate 1 is fixedly connected to the water pump, a protective cap 2 for blocking mud and sand is provided on the protruding portion of the fixed plate 1, the protective cap 2 is coaxially connected to the pump shaft 3, and the pump shaft 3 drives the protective cap 2 to rotate;

[0025] The protective cap 2 includes: a first plane 201 arranged at the lower edge of the protective cap 2, and a second plane 202 arranged on the inner top surface of the protective cap 2; the first plane 201 and the second plane 202 are both in contact with the fixed plate 1; the first plane 201 and the second plane 202 are respectively provided with a first pattern 201a and a second pattern 202a for grinding mud and sand.

[0026] Specifically, the fixing plate 1 comprises: a base 101, a primary boss 102 is provided on the base 101, the primary boss 102 comprises: a first running-in surface 103 provided on the primary boss 102, and a grinding pattern 103a is provided on the first running-in surface 103;

[0027] The first running-in surface 103 is in contact with the first plane 201. Figure 4 As shown, the first pattern 201a cooperates with the grinding pattern 103a to grind sand and gravel; when the protective cap 2 rotates, the first pattern 201a rotates accordingly, and the invading mud and sand are repeatedly ground between the first pattern 201a and the grinding pattern 103a, and the large particles of sand and gravel are ground and broken into small particles. Under the action of the centrifugal force of the protective cap 2 and the stirred water flow, the fine sand and gravel are thrown out along the gap of the first pattern 201a. While grinding the mud and sand, the first pattern 201a and the grinding pattern 103a also provide a channel for discharging the fine sand and gravel.

[0028] Specifically, the protective cap 2 is sleeved onto the convex ring 104 , and the pump shaft 3 drives the protective cap 2 to rotate on the convex ring 104 .

[0029] Specifically, the inner wall of the protective cap 2 abuts against the outer wall of the convex ring 104, and the outer wall of the convex ring 104 is provided with a plurality of sealing grooves. If the first pattern 201a and the grinding pattern 103a fail after wear, the sealing grooves prevent mud and sand from spreading along the gap between the protective cap 2 and the inner wall of the convex ring 104. Preferably, three sealing grooves are provided in this embodiment.

[0030] A convex ring 104 is provided on the primary boss 102, and a second running-in surface 105 is provided on the convex ring 104; the second running-in surface 105 is in contact with the second plane 202, such as Figure 4 As shown; the second pattern 202a contacts the second running-in surface 105. If the first pattern 201a, the grinding pattern 103a and the sealing groove all fail, the mud and sand enter the gap between the protective cap 2 and the inner wall of the convex ring 104. At this time, the second pattern 202a acts as the second mud and sand grinding to prevent the mud and sand from further invading the interior of the pump body.

[0031] Specifically, the pump shaft 3 passes through the protective cap 2 , and the protective cap 2 matches with the shaft head of the pump shaft 3 ; in this embodiment, an interference fit is adopted between the protective cap 2 and the pump shaft 3 .

[0032] Specifically, a first pin hole 203 is provided on a side of the protective cap 2, and a second pin hole 301 is provided on one side of the pump shaft 3; the first pin hole 203 and the second pin hole 301 are connected by a pin shaft.

[0033] The specific use principle of the utility model is as follows:

[0034] The deposited silt enters the gap between the protective cap 2 and the fixed plate 1. The protective cap 2 rotates synchronously driven by the pump shaft 3. The silt enters the gap between the first plane 201 and the first running-in surface 103. The silt is ground under the joint action of the first texture 201a and the second texture 202a. The ground silt is thrown out under the joint action of the centrifugal force of the protective cap 2 and the stirred water flow, thereby avoiding silt accumulation.

[0035] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A water pump sediment protection device, characterized in that: include: A fixed plate (1), the fixed plate (1) is fixedly connected to the water pump, a protective cap (2) for blocking mud and sand is provided on a protruding portion of the fixed plate (1), the protective cap (2) is coaxially connected to a pump shaft (3), and the pump shaft (3) can drive the protective cap (2) to rotate; The protective cap (2) comprises: a first plane (201) arranged at the lower edge of the protective cap (2), and a second plane (202) arranged on the top surface inside the protective cap (2); the first plane (201) and the second plane (202) are both in contact with the fixed plate (1); and the first plane (201) and the second plane (202) are respectively provided with a first pattern (201a) and a second pattern (202a) for grinding mud and sand.

2. A water pump sediment protection device according to claim 1, characterized in that: The fixed plate (1) comprises: a base (101), a primary boss (102) is arranged on the base (101), the primary boss (102) comprises: a first grinding surface (103) arranged on the primary boss (102), and the first grinding surface (103) is provided with grinding lines (103a); The first grinding surface (103) is in contact with the first plane (201), and the first pattern (201a) cooperates with the grinding pattern (103a) to grind sandstone; A convex ring (104) is provided on the primary boss (102), and a second running-in surface (105) is provided on the convex ring (104); the second running-in surface (105) is in contact with the second plane (202).

3. A water pump sediment protection device according to claim 2, characterized in that: The protective cap (2) is sleeved onto the convex ring (104), and the pump shaft (3) can drive the protective cap (2) to rotate on the convex ring (104).

4. A water pump sediment protection device according to claim 2, characterized in that: The inner wall of the protective cap (2) abuts against the outer wall of the convex ring (104), and the outer wall of the convex ring (104) is provided with a plurality of sealing grooves.

5. A water pump sediment protection device according to claim 1, characterized in that: The pump shaft (3) passes through the protective cap (2), and the protective cap (2) matches with the shaft head of the pump shaft (3).

6. A water pump sediment protection device according to claim 1, characterized in that: A first pin hole (203) is provided on the side of the protective cap (2), and a second pin hole (301) is provided on one side of the pump shaft (3); The first pin hole (203) and the second pin hole (301) are connected by a pin shaft.

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