Sealing structure for water pump

Abstract

The utility model discloses a sealing structure for a water pump, which comprises a first sealing ring and a second sealing ring, a clamping seat is arranged on the inner wall of the first sealing ring, a rubber sealing ring is arranged on the inner wall of the first sealing ring, a mounting hole is formed in the outer wall of the second sealing ring, and the outer wall of the sealing seat is in threaded connection with the sealing seat. A circle of spring is arranged on the outer wall of the sealing seat, and the sealing seat is in threaded connection with the mounting hole through a fixing bolt. Through cooperation of the sealing seat, the fixing bolt and the spring, when the water pump works, extra pressure is provided through the spring, so that the sealing ring is more tightly attached to the shaft, the sealing performance is improved, the possibility of leakage is reduced, the pressure of the sealing ring is adjusted to a certain degree, the sealing ring can adapt to working environments under different temperature, pressure and rotating speed conditions, and the service life of the sealing ring is prolonged. Therefore, the sealing stability and reliability are improved, the friction force in contact with the shaft is reduced, the abrasion of the sealing ring is reduced, the service life of the sealing element is prolonged, and the maintenance cost and the operation risk of the water pump are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a sealing structure for a water pump. Background Art

[0002] A water pump is a mechanical device used to transport liquid from one place to another. It is usually composed of a motor, an impeller, a pump casing, a sealing device, etc. The water pump drives the impeller to rotate through the motor, generating centrifugal force to create pressure on the liquid, thereby achieving liquid transportation. Water pumps can be divided into many types according to their working principles and structural characteristics. Common ones include centrifugal pumps, self-priming pumps, sewage pumps, deep well pumps, etc. Different types of water pumps are suitable for different working conditions and liquid transportation requirements. A sealing structure is required when the water pump is working.

[0003] The sealing ring on the existing water pump sealing structure is fixed in position and cannot be adjusted to withstand pressure, which will affect the stability and reliability of the sealing effect, resulting in a decrease in sealing performance and leakage. In addition, the sealing ring is subjected to greater wear and tear, causing damage to the sealing material, thereby requiring frequent replacement of the sealing ring, increasing maintenance costs and downtime, and reducing the reliability and stability of the equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the sealing ring on the existing water pump sealing structure is fixed in position and cannot be adjusted to withstand pressure, which will affect the stability and reliability of the sealing effect, resulting in a decrease in sealing performance and leakage, and the sealing ring is subjected to greater wear and tear, causing damage to the sealing material, thereby requiring frequent replacement of the sealing ring, increasing maintenance costs and downtime, and reducing the reliability and stability of the equipment. A sealing structure for a water pump is proposed to solve the problems in the prior art that the sealing ring is fixed in position and cannot be adjusted to withstand pressure, which will affect the stability and stability of the sealing effect, resulting in a decrease in sealing performance and leakage, and the sealing ring is subjected to greater wear and tear, causing damage to the sealing material, thereby requiring frequent replacement of the sealing ring, increasing maintenance costs and downtime, and reducing the reliability and stability of the equipment.

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

[0006] A sealing structure for a water pump comprises a first sealing ring and a second sealing ring, wherein a clamping seat is provided on the inner wall of the first sealing ring, a rubber sealing ring is provided on the inner wall of the first sealing ring, and a mounting hole is provided on the outer wall of the second sealing ring;

[0007] It also includes a sealing seat, the outer wall of the sealing seat is threadedly connected to the sealing seat, the outer wall of the sealing seat is provided with a circle of spring, and the sealing seat is threadedly connected to the mounting hole through a fixing bolt.

[0008] Preferably, the first sealing ring and the second sealing ring are respectively cylindrical with openings at both ends, and one side of the first sealing ring and the second sealing ring is respectively provided with two extension ends, and one side of the extension ends of the first sealing ring and the second sealing ring are staggered and clamped together.

[0009] Preferably, the inner walls of the first sealing ring and the second sealing ring are respectively provided with notches, and there are two rubber sealing rings, which are respectively embedded in the two notches.

[0010] Preferably, the number of the mounting holes is four, and the four mounting holes are respectively located on the two extending ends of the first sealing ring and the second sealing ring.

[0011] Preferably, the sealing seat is in a circular ring shape, the outer wall of the sealing seat is cross-shaped and provided with four fixing bolts, and the spring is arranged in a surrounding shape on both sides of the outer wall of the sealing seat.

[0012] The utility model has the following beneficial effects:

[0013] The utility model cooperates with a sealing seat, a fixing bolt and a spring. When the water pump is working, the spring provides additional pressure to make the sealing ring fit more closely on the shaft, thereby improving the sealing performance and reducing the possibility of leakage. The pressure of the sealing ring can be adjusted to a certain extent so that it can adapt to the working environment under conditions of different temperature, pressure and rotation speed, thereby increasing the stability and reliability of the seal, reducing the friction with the shaft, reducing the wear of the sealing ring, thereby extending the service life of the seal, maintaining the sealing effect more stably, and reducing the maintenance cost and operating risk of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural schematic diagram of the sealing structure;

[0015] Figure 2 It is a schematic diagram of the structure of the sealing seat, fixing bolts and springs;

[0016] Figure 3 It is a schematic diagram of the structure of the first sealing ring, the holder, the second sealing ring, the mounting hole and the rubber sealing ring;

[0017] Figure 4 Schematic diagram of the internal structure of the sealing structure.

[0018] In the figure: 1. first sealing ring; 2. holder; 3. second sealing ring; 4. mounting hole; 5. rubber sealing ring; 6. sealing seat; 7. fixing bolt; 8. spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4A sealing structure for a water pump, comprising a first sealing ring 1 and a second sealing ring 3, wherein a card seat 2 is provided on the inner wall of the first sealing ring 1, a rubber sealing ring 5 is provided on the inner wall of the first sealing ring 1, and a mounting hole 4 is provided on the outer wall of the second sealing ring 3;

[0021] It also includes a sealing seat 6 , the outer wall of the sealing seat 6 is threadedly connected to the sealing seat 6 , the outer wall of the sealing seat 6 is provided with a circle of spring 8 , and the sealing seat 6 is threadedly connected to the mounting hole 4 through a fixing bolt 7 .

[0022] The first sealing ring 1 and the second sealing ring 3 are respectively cylindrical with openings at both ends. Two extension ends are respectively provided on one side of the first sealing ring 1 and the second sealing ring 3. One side of the extension ends of the first sealing ring 1 and the second sealing ring 3 are staggered and clamped together, so that the sealing rings maintain their shapes when subjected to extrusion or torsional forces, thereby ensuring the stable position between the sealing rings and the shaft and improving the wear resistance and service life of the sealing rings.

[0023] The first sealing ring 1 and the second sealing ring 3 are respectively provided with slots on their inner walls. There are two rubber sealing rings 5, which are respectively embedded in the two slots. The rubber sealing rings 5 ​​are elastic and deformable and can fit tightly to the surface of the shaft, thereby effectively preventing leakage of liquid or gas.

[0024] There are four mounting holes 4, which are respectively located on the two extending ends of the first sealing ring 1 and the second sealing ring 3. The sealing seat 6 is in a circular ring shape, and the outer wall of the sealing seat 6 is cross-shaped and has four fixing bolts 7. The spring 8 is arranged in a surrounding shape on both sides of the outer wall of the sealing seat 6. The four fixing bolts 7 penetrate and connect the four mounting holes 4 respectively. The first sealing ring 1 and the second sealing ring 3 are connected by the fixing bolts 7. The mounting hole 4 is elliptical, and the fixing bolts 7 can be adjusted in the mounting hole 4 as needed.

[0025] When using the device, first place the device at the designated working position, and cooperate with the sealing seat 6, the fixing bolt 7 and the spring 8. When the water pump is working, the spring 8 provides additional pressure to make the sealing ring fit more closely on the shaft, thereby improving the sealing performance and reducing the possibility of leakage. The pressure of the sealing ring is adjusted to a certain extent so that it can adapt to the working environment under different temperature, pressure and speed conditions, thereby increasing the stability and reliability of the seal, reducing the friction with the shaft, reducing the wear of the sealing ring, thereby extending the service life of the seal, maintaining the sealing effect more stably, and reducing the maintenance cost and operation risk of the water pump.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing structure for a water pump, comprising a first sealing ring (1) and a second sealing ring (3), characterized in that: The inner wall of the first sealing ring (1) is provided with a holder (2), the inner wall of the first sealing ring (1) is provided with a rubber sealing ring (5), and the outer wall of the second sealing ring (3) is provided with a mounting hole (4); It also comprises a sealing seat (6), the outer wall of the sealing seat (6) is threadedly connected to the sealing seat (6), the outer wall of the sealing seat (6) is provided with a coil of spring (8), and the sealing seat (6) is threadedly connected to the mounting hole (4) via a fixing bolt (7).

2. A sealing structure for a water pump according to claim 1, characterized in that: The first sealing ring (1) and the second sealing ring (3) are respectively in the shape of a cylinder with openings at both ends; one side of the first sealing ring (1) and the second sealing ring (3) are respectively provided with two extended ends; one side of the extended ends of the first sealing ring (1) and the second sealing ring (3) are staggered and clamped together.

3. A sealing structure for a water pump according to claim 2, characterized in that: The inner walls of the first sealing ring (1) and the second sealing ring (3) are respectively provided with slots, and the number of the rubber sealing rings (5) is two, and the two rubber sealing rings (5) are respectively embedded in the two slots.

4. A sealing structure for a water pump according to claim 2, characterized in that: The number of the mounting holes (4) is four, and the four mounting holes (4) are respectively located on the two extended ends of the first sealing ring (1) and the second sealing ring (3).

5. A sealing structure for a water pump according to claim 1, characterized in that: The sealing seat (6) is in the shape of a ring, and the outer wall of the sealing seat (6) is provided with four fixing bolts (7) in the shape of a cross, and the spring (8) is arranged in a surrounding shape on both sides of the outer wall of the sealing seat (6).

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