Mechanical sealing element with sealing ring convenient to replace

Abstract

The utility model relates to the technical field of sealing elements, in particular to a mechanical sealing element convenient to replace a sealing ring, which comprises a moving ring, the moving ring comprises a contact ring I, a groove I is arranged on the surface of the contact ring I, a sealing ring II is sleeved in the groove I, a groove II is arranged in the contact ring I, a sealing ring I is sleeved in the groove II, and a sealing ring II is arranged in the sealing ring II. The first sealing ring is used for isolating the shaft and the shaft sleeve from the outside, the second sealing ring is used for isolating the joint of the movable ring from the outside, the static ring comprises a second contact ring, the second contact ring is sleeved with the first contact ring, a third groove is formed in the surface of the second contact ring, a static end ring is fixedly connected into the second contact ring, and a fourth groove is formed in one end of the static end ring. According to the mechanical sealing piece with the sealing ring convenient to replace, when the sealing ring is abraded and the like, the sealing ring can be independently replaced, the whole mechanical sealing device does not need to be replaced, the maintenance time is shortened, and production loss caused by equipment shutdown is reduced. And as the sealing ring is relatively simple and rapid to replace, the maintenance can be completed in a relatively short time.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and more specifically, to a mechanical seal that facilitates the replacement of the sealing ring. Background Technology

[0002] Mechanical seals are devices used to prevent fluid leakage. Traditional mechanical seals, with their inconvenient sealing ring replacement, have certain drawbacks. When the sealing ring wears down and requires repair, the inconvenience of replacement may necessitate disassembling and replacing the entire mechanical seal, significantly increasing maintenance costs. This includes the cost of purchasing new seals and labor costs during the repair process. The inconvenience of replacing the sealing ring means a more complex and time-consuming repair process. Maintenance personnel need to spend more time and effort disassembling and installing the sealing device, increasing the difficulty of repair. If the worn sealing ring is not replaced in time, it will lead to a decline in sealing performance, thus affecting equipment performance. For example, in pumps, poor sealing may cause leakage, reducing pump efficiency, increasing energy consumption, and potentially causing equipment malfunctions and damage. For instance, leaked media may corrode the surrounding environment and equipment, affecting the equipment's lifespan and reliability.

[0003] Therefore, there is an urgent need for a mechanical seal that allows for easy replacement of the sealing ring to improve the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical seal that facilitates the replacement of the sealing ring, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a mechanical seal that facilitates the replacement of sealing rings, comprising a rotating ring, wherein the rotating ring includes a contact ring one, the surface of the contact ring one having a groove one, a sealing ring two being sleeved inside the groove one, the contact ring one having a groove two inside, the groove two having a sealing ring one being sleeved inside, the sealing ring one being used to isolate the shaft and bushing from the outside, the sealing ring two being used to isolate the rotating ring connection from the outside, a stationary ring being inserted into the rotating ring, the stationary ring including a contact ring two being sleeved inside the contact ring one, the surface of the contact ring two having a groove three, a stationary end ring being fixedly connected inside the contact ring two, and one end of the stationary end ring having a groove four.

[0006] As a further improvement to this technical solution, a connecting seat is fixedly connected to one end of the contact ring. The connecting seat is hollow inside. A spring is fixedly connected to one end of the connecting seat. The spring is used to provide elastic compensation for the moving ring. A base is fixedly connected to the other end of the spring.

[0007] As a further improvement to this technical solution, the surface of the stationary end ring away from the groove four is provided with a groove five, and a sealing ring three is sleeved in the groove five. The sealing ring three is used to isolate the sealing element from the outside world.

[0008] As a further improvement to this technical solution, the first groove matches the third groove, and the second groove matches the fourth groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This mechanical seal features an easy-to-replace sealing ring. When the sealing ring is worn, only the ring needs to be replaced, eliminating the need to replace the entire mechanical seal, significantly reducing maintenance costs. Only the cost of purchasing the sealing ring is required, which is lower than replacing the entire seal, reducing maintenance time and minimizing production losses due to equipment downtime. Because replacing the sealing ring is relatively simple and quick, maintenance can be completed in a short time, allowing the equipment to return to operation as soon as possible and reducing economic losses caused by production interruptions. The ease of replacement simplifies the maintenance process, eliminating the need for complex disassembly and installation by maintenance personnel; simply remove the damaged sealing ring and replace it with a new one, greatly improving maintenance efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0012] Figure 2 This is a schematic diagram of the overall unfolded structure of the embodiment;

[0013] Figure 3 This is a schematic diagram of the dynamic ring structure in an embodiment;

[0014] Figure 4 This is a schematic diagram of the stationary ring structure in an embodiment.

[0015] The meanings of the labels in the diagram are as follows:

[0016] 1. Moving ring; 10. Contact ring one; 11. Base; 12. Spring; 13. Connecting seat; 14. Groove one; 15. Groove two; 16. Sealing ring one; 17. Sealing ring two;

[0017] 2. Stationary ring; 20. Contact ring two; 21. Groove three; 22. Stationary end ring; 23. Groove four; 24. Groove five; 25. Sealing ring three. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 As shown, this embodiment provides a mechanical seal that facilitates the replacement of the sealing ring, including a rotating ring 1. The rotating ring 1 includes a contact ring 10. The surface of the contact ring 10 has a groove 14. A sealing ring 17 is fitted inside the groove 14. The inside of the contact ring 10 has a groove 15. A sealing ring 16 is fitted inside the groove 15. The sealing ring 16 is used to isolate the shaft and bushing from the outside. The sealing ring 17 is used to isolate the connection of the rotating ring 1 from the outside. A stationary ring 2 is inserted into the rotating ring 1. The stationary ring 2 includes a contact ring 20. The contact ring 20 is fitted inside the contact ring 10. The surface of the contact ring 20 has a groove 21. A stationary end ring 22 is fixedly connected inside the contact ring 20. One end of the stationary end ring 22 has a groove 23.

[0020] The working principle is as follows: First, the seal mainly consists of a rotating ring 1 and a stationary ring 2. The sealing ring 17 in the groove 14 on the surface of the contact ring 10 of the rotating ring 1 isolates the connection of the rotating ring 1 from the outside. The sealing ring 16 in the groove 15 inside the contact ring 10 isolates the shaft and bushing from the outside. The contact ring 20 of the stationary ring 2 fits inside the contact ring 10 of the rotating ring 1. The stationary end ring 22 inside the contact ring 20 has a groove 23 at one end. During operation, the rotating ring 1 rotates with the shaft, while the stationary ring 2 remains stationary. Through the cooperation of the rotating ring 1 and the stationary ring 2, as well as the action of the sealing rings 16 and 17, the shaft, bushing, and connection of the rotating ring 1 are sealed to prevent fluid leakage. When the sealing rings need to be replaced, the rotating ring 1 and the stationary ring 2 can be separated, and the sealing rings 16 and 17 can be replaced separately. The operation is convenient and improves the maintenance efficiency of the seal.

[0021] To enhance sealing, in this embodiment, a connecting seat 13 is fixedly connected to one end of the contact ring 10. The connecting seat 13 is hollow inside, and a spring 12 is fixedly connected to one end of the connecting seat 13. The spring 12 is used to provide elastic compensation for the moving ring 1. The other end of the spring 12 is fixedly connected to a base 11. The connecting seat 13 contains the spring 12. One end of the spring 12 is connected to the moving ring 1, and the other end is fixed to the base 11 to provide elastic compensation to accommodate the movement of the moving ring 1.

[0022] In order to isolate it from the outside world, in this embodiment, the surface of the stationary end ring 22 away from the groove 4 23 is provided with a groove 5 24, and a sealing ring 3 25 is sleeved inside the groove 5 24. The sealing ring 3 25 is used to isolate the sealing element from the outside world. The stationary end ring 22 away from the groove 4 23 is provided with a groove 5 24, and the sealing ring 3 25 is sleeved inside the groove 5 24, which serves to isolate the sealing element from the outside world.

[0023] For sealing purposes, in this embodiment, groove 14 fits into groove 3 21, and groove 2 15 fits into groove 4 23. Groove 14 and groove 3 21 fit tightly to ensure the integrity of the seal, while the fit between groove 2 15 and groove 4 23 further enhances the stability and reliability of the seal.

[0024] In this embodiment, a mechanical seal with an easily replaceable sealing ring is used primarily by a rotating ring 1 and a stationary ring 2. The sealing ring 17 within the groove 14 on the surface of the contact ring 10 of the rotating ring 1 isolates the connection point of the rotating ring 1 from the outside. A spring 12 is located inside the connecting seat 13; one end of the spring 12 is connected to the rotating ring 1, and the other end is fixed to the base 11, providing elastic compensation to accommodate the movement of the rotating ring 1. The sealing ring 16 within the groove 15 inside the contact ring 10 isolates the shaft and bushing from the outside. The contact ring 20 of the stationary ring 2 is fitted inside the contact ring 10 of the rotating ring 1. One end of the stationary end ring 22 inside the contact ring 20 has a groove 23. During operation, the rotating ring 1 rotates with the shaft, and the stationary ring... 2. Keeping the ring stationary, through the cooperation of the moving ring 1 and the stationary ring 2, and the function of sealing ring 16 and sealing ring 27, the end of the stationary ring 22 away from the groove 4 23 is provided with groove 5 24. The sealing ring 3 25 is fitted inside the groove 5 24, which isolates the seal from the outside world, thereby achieving a seal on the shaft, shaft sleeve and the connection of the moving ring 1, and preventing fluid leakage. When it is necessary to replace the sealing ring, the moving ring 1 and the stationary ring 2 can be separated, and sealing ring 16 and sealing ring 2 17 can be replaced respectively. Groove 1 14 and groove 3 21 fit tightly to ensure the integrity of the seal, while the fit between groove 2 15 and groove 4 23 further enhances the stability and reliability of the seal. The operation is relatively convenient and improves the maintenance efficiency of the seal.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanical seal facilitating replacement of the seal ring, comprising a ring (1), characterized in that: The moving ring (1) comprises a contact ring I (10), the surface of the contact ring I (10) is provided with a groove I (14), the groove I (14) is sleeved with a sealing ring II (17), the inside of the contact ring I (10) is provided with a groove II (15), the inside of the groove II (15) is sleeved with a sealing ring I (16), the sealing ring I (16) is used for isolating the shaft and the shaft sleeve from the outside, the sealing ring II (17) is used for isolating the connecting part of the moving ring (1) from the outside, the moving ring (1) is inserted with a static ring (2), the static ring (2) comprises a contact ring II (20), the contact ring II (20) is sleeved in the contact ring I (10), the surface of the contact ring II (20) is provided with a groove III (21), the inside of the contact ring II (20) is fixedly connected with a static end ring (22), one end of the static end ring (22) is provided with a groove IV (23).

2. The mechanical seal with easy-to-change seal ring according to claim 1, characterized in that: One end of the contact ring I (10) is fixedly connected with a connecting seat (13), the inside of the connecting seat (13) is hollow, one end of the connecting seat (13) is fixedly connected with a spring (12), the spring (12) is used for providing elastic compensation for the moving ring (1), the other end of the spring (12) is fixedly connected with a base (11).

3. The mechanical seal with easy-to-change seal ring of claim 1, wherein: The surface of the other end of the static end ring (22) away from the groove IV (23) is provided with a groove V (24), the groove V (24) is sleeved with a sealing ring III (25), the sealing ring III (25) is used for isolating the sealing element from the outside.

4. The mechanical seal with ease of replacement seal ring of claim 1, wherein: The groove I (14) is matched with the groove III (21), and the groove II (15) is matched with the groove IV (23).

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