Water retaining ring assembly of submersible pump

Abstract

The utility model relates to the technical field of submersible pumps, in particular to a water retaining ring assembly of a submersible pump, which comprises a shell and a mounting pump shaft, a sealing element is fixedly connected onto the shell, one end of the mounting pump shaft penetrates through the sealing element and extends to the outside of the shell, a support is fixedly connected inside the shell, a bearing is arranged on the support, and a water retaining ring is arranged on the bearing. And the bracket is rotationally connected with the mounting pump shaft through a bearing. A water retaining ring is fixedly connected to the position, located between the bearing and the sealing piece, of the installation pump shaft, and the water retaining ring is used for achieving the water retaining effect after water leakage of the sealing piece. According to the submersible pump motor, the motor can be better prevented from being damaged after water enters the motor, the water retaining ring plays a water retaining role, the water retaining ring is provided with the water throwing angle, water can be thrown out smoothly, the waterproof effect is further improved, and stable and efficient operation of the submersible pump motor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a water retaining ring component of a submersible pump. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges in the water to extract groundwater to the surface for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship loading, and fountain landscape.

[0003] In the prior art, there is a submersible sewage pump proposed in patent application number "CN201320024504.8", which comprises: a base having a sewage inlet; a pump body mounted on the base, having a medium flow cavity, and the cavity having an inlet communicated with the base and a sewage outlet, and the axes of the inlet and the sewage outlet are perpendicular to each other.

[0004] However, in the above patent application, the pump shaft and the housing of the sewage pump motor are sealed and protected only by a mechanical seal. If the mechanical seal is damaged, external water will directly enter the motor, causing damage to the submersible pump motor. Utility Model Content

[0005] The utility model aims to provide a water retaining ring assembly for a submersible pump to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A water retaining ring assembly of a submersible pump comprises a shell and a pump shaft installation, wherein a seal is fixedly connected to the shell, one end of the pump shaft installation passes through the seal and extends to the outside of the shell, a bracket is fixedly connected to the inside of the shell, a bearing is arranged on the bracket, and the bracket is rotatably connected to the pump shaft installation through the bearing.

[0008] A water retaining ring is installed on the pump shaft and fixedly connected between the bearing and the seal. The water retaining ring is used to retain water after the seal leaks. A water throwing angle is provided on the water retaining ring to throw out water.

[0009] Preferably, a stator is disposed inside the housing, and a rotor is mounted on the pump shaft.

[0010] Preferably, a protective mesh cover is provided at one end of the outer shell, and the protective mesh cover includes a first protective mesh and a second protective mesh connected to each other, and the inner surfaces of the first protective mesh and the second protective mesh are fixedly connected with arc-shaped metal parts, one side of the first protective mesh is fixedly connected with a first fixing part, and one side of the second protective mesh is fixedly connected with a second fixing part.

[0011] Preferably, fixing holes are provided on the first fixing member and the second fixing member, and waterproof adhesive is provided on one side of the first fixing member and the second fixing member.

[0012] Preferably, a positioning protrusion and a positioning slot are respectively provided on the two arc-shaped metal parts, and the positioning protrusion and the positioning slot are matched with each other.

[0013] Preferably, a clamping plug-in is fixedly connected to the first fixing member, a protruding block is fixedly connected to the second fixing member, and a U-shaped clamping groove for use with the clamping plug-in is provided on the protruding block.

[0014] Beneficial effects of the utility model:

[0015] The utility model arranges a water retaining ring on the pump shaft, and when a sealing problem occurs at the sealing part, the water retaining ring can be used to better prevent water from entering the motor and causing damage to the motor. The water retaining ring plays a water retaining role, and the water retaining ring is provided with a water throwing angle, which can throw water out smoothly, further improving the waterproof effect and ensuring the stable and efficient operation of the submersible pump motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 A magnified view of the structure at center A;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the three-dimensional structure of the middle water retaining ring;

[0020] Figure 4 This utility model Figure 3 Rear view of the middle water retaining ring;

[0021] Figure 5 This utility model Figure 2 Schematic diagram of the structure of the middle protective mesh cover;

[0022] Figure 6 This utility model Figure 5 Rear view of the middle protective grille;

[0023] Figure 7 This utility model Figure 5 Cross-sectional view of the first protective net.

[0024] The reference numerals in the figures are as follows:

[0025] 1. Housing, 2. Install the pump shaft, 3. Seal, 4. Bracket, 5. Bearing, 6. Water retaining ring, 601, Water throwing angle, 7. Stator, 8. Rotor, 9. Protective mesh cover, 901, First protective net, 902, Second protective net, 10. Arc-shaped metal part, 11. First fixing part, 12. Second fixing part, 13. Fixing hole, 14. Waterproof adhesive, 15. Positioning protrusion, 16. Positioning slot, 17. Clamping plug-in, 18. Raised block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] A water retaining ring assembly of a submersible pump includes a shell 1 and a pump shaft 2, wherein a seal 3 is fixedly connected to the shell 1, one end of the pump shaft 2 passes through the seal 3 and extends to the outside of the shell 1, and a bracket 4 is fixedly connected to the inside of the shell 1, and a bearing 5 is provided on the bracket 4, and the bracket 4 is rotatably connected to the pump shaft 2 through the bearing 5.

[0028] A water retaining ring 6 is fixedly connected to the pump shaft 2 and located between the bearing 5 and the seal 3. The water retaining ring 6 is used to retain water after the seal 3 leaks. A water throwing angle 601 is provided on the water retaining ring 6 to throw out water.

[0029] like Figure 1 and Figure 2 The housing 1 and the pump shaft 2 are both existing technologies and will not be described in detail here. The seal 3 adopts a mechanical seal, which can ensure the sealing between the pump shaft 2 and the housing 1 without affecting the rotation of the pump shaft 2. The water retaining ring 6 and the bracket 4 are tightly matched.

[0030] A stator 7 is disposed inside the housing 1 , and a rotor 8 is mounted on the pump shaft 2 .

[0031] like Figure 1 , install the pump shaft 2 at the center of the rotor 8, and install the pump shaft 2, rotor 8, stator 7 and housing 1 in sequence from the inside to the outside.

[0032] A protective mesh cover 9 is provided at one end of the outer shell 1, and the protective mesh cover 9 includes a first protective mesh 901 and a second protective mesh 902 connected to each other, and the inner surfaces of the first protective mesh 901 and the second protective mesh 902 are fixedly connected with an arc-shaped metal part 10, one side of the first protective mesh 901 is fixedly connected with a first fixing part 11, and one side of the second protective mesh 902 is fixedly connected with a second fixing part 12.

[0033] like Figure 2 , Figure 5 and Figure 7 The first protective net 901 and the second protective net 902 form an annular protective net cover 9, and the two arc-shaped metal parts 10 on the inner side thereof form a complete circular ring. The pump shaft 2 can be installed by passing through the circular ring formed by the two arc-shaped metal parts 10. The first fixing part 11 and the second fixing part 12 are both semicircular and can form a complete circular ring. The protective net cover 9 is located on the outside of the seal 3 to isolate hard objects in the water, and can provide anti-scratch protection for the seal 3 to avoid damage to the seal 3.

[0034] The first fixing member 11 and the second fixing member 12 are both provided with fixing holes 13 , and waterproof adhesive 14 is provided on one side of the first fixing member 11 and the second fixing member 12 .

[0035] like Figure 2 , Figure 5 and Figure 6 The first fixing member 11 and the second fixing member 12 can be fixed to the housing 1 by passing bolts through the fixing holes 13 , or can be bonded to the housing 1 by a waterproof adhesive 14 .

[0036] The two arc-shaped metal parts 10 are respectively provided with a positioning protrusion 15 and a positioning slot 16 , and the positioning protrusion 15 and the positioning slot 16 are matched with each other.

[0037] like Figure 5 and Figure 6 When the first protection net 901 and the second protection net 902 are brought close to each other, the positioning protrusion 15 can be inserted into the positioning slot 16, and the two arc-shaped metal parts 10 are aligned together, so that the arc-shaped metal parts 10 can be connected together.

[0038] A clamping plug-in 17 is fixedly connected to the first fixing member 11 , and a protruding block 18 is fixedly connected to the second fixing member 12 . The protruding block 18 is provided with a U-shaped clamping groove for use with the clamping plug-in 17 .

[0039] like Figure 5 and Figure 6One end of the clamping plug-in 17 is U-shaped. When the first protective net 901 and the second protective net 902 are brought close to each other, one end of the clamping plug-in 17 can be just inserted into the U-shaped slot of the protruding block 18, clamping the first fixing member 11 and the second fixing member 12 together, thereby improving the stability of the first protective net 901 and the second protective net 902 when they are connected to form the protective net cover 9.

[0040] Compared with the related art, the water retaining ring assembly of a submersible pump provided by the utility model has the following advantages:

[0041] Beneficial effects:

[0042] The utility model arranges a water retaining ring 6 on the pump shaft 2. When a sealing problem occurs at the seal 3, the water retaining ring 6 can be used to better prevent water from entering the motor and causing damage to the motor. The water retaining ring 6 plays a water retaining role, and the water retaining ring 6 is provided with a water throwing angle 601, which can throw water out smoothly, further improving the waterproof effect, and ensuring the stable and efficient operation of the submersible pump motor.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A water retaining ring assembly for a submersible pump, comprising a housing (1) and a pump shaft (2), characterized in that: The housing (1) is fixedly connected with a sealing member (3); one end of the pump shaft (2) passes through the sealing member (3) and extends to the outside of the housing (1); a bracket (4) is fixedly connected to the inside of the housing (1); a bearing (5) is provided on the bracket (4); and the bracket (4) is rotatably connected to the pump shaft (2) via the bearing (5); A water retaining ring (6) is fixedly connected to the pump shaft (2) and is located between the bearing (5) and the sealing member (3). The water retaining ring (6) is used to retain water when the sealing member (3) leaks water. A water throwing angle (601) is provided on the water retaining ring (6) and is used to throw out water.

2. A water retaining ring assembly for a submersible pump according to claim 1, characterized in that: A stator (7) is arranged inside the housing (1), and a rotor (8) is installed on the pump shaft (2).

3. A water retaining ring assembly for a submersible pump according to claim 1, characterized in that: A protective mesh cover (9) is provided at one end of the housing (1), the protective mesh cover (9) comprising a first protective mesh (901) and a second protective mesh (902) which are connected to each other, the inner surfaces of the first protective mesh (901) and the second protective mesh (902) are both fixedly connected to arc-shaped metal parts (10), one side of the first protective mesh (901) is fixedly connected to a first fixing part (11), and one side of the second protective mesh (902) is fixedly connected to a second fixing part (12).

4. A water retaining ring assembly for a submersible pump according to claim 3, characterized in that: The first fixing member (11) and the second fixing member (12) are both provided with fixing holes (13), and waterproof adhesive (14) is provided on one side of the first fixing member (11) and the second fixing member (12).

5. A water retaining ring assembly for a submersible pump according to claim 3, characterized in that: A positioning protrusion (15) and a positioning slot (16) are respectively provided on the two arc-shaped metal parts (10), and the positioning protrusion (15) and the positioning slot (16) are adapted to each other.

6. A water retaining ring assembly for a submersible pump according to claim 3, characterized in that: The first fixing member (11) is fixedly connected with a clamping plug-in (17), the second fixing member (12) is fixedly connected with a protruding block (18), and the protruding block (18) is provided with a U-shaped clamping groove for use with the clamping plug-in (17).

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