Quickly-replaceable sealing waterproof device

Abstract

The utility model discloses a sealing waterproof device capable of being replaced quickly. The sealing waterproof device comprises a transmission part, an internal sealing assembly and an external sealing assembly. The internal sealing assembly comprises an internal sealing seat and a sealing ring; the external sealing assembly comprises an external sealing seat; the internal sealing seat is sleeved on the transmission part, is fixed on the water chamber and is subjected to static sealing through a sealing ring; the external sealing seat is positioned on the internal sealing seat through the mounting seam allowance; and the transmission part is fixedly arranged on the external sealing seat through a bearing. The device has the characteristics of online replacement, simple structure, high replacement speed, safety and reliability, and is suitable for batch application.

Description

Technical Field

[0001] The utility model relates to a waterproof sealing quick-change device. Background Art

[0002] With the continuous improvement of the level of industrial automation, the continuous operation time of equipment is also increasing, and the demand for online replacement of seals is also increasing. For example, the condenser water chamber of a power plant generally has only one shutdown time a year. If a seal fails during operation, it can only be repaired after the equipment is shut down, which has a great impact on the operation of the equipment.

[0003] In order to solve the problem of online replacement of seals in special occasions and improve the safety and reliability of sealing equipment, it is necessary to provide a waterproof sealing quick-change device that can be replaced online and is simple and convenient. Summary of the invention

[0004] The utility model is a solution for online replacement of waterproof seals, which has the characteristics of online replacement, simple structure, fast replacement speed, safety and reliability, and is suitable for batch application.

[0005] The utility model discloses a quick-change sealing and waterproof device, comprising a transmission member, an internal sealing component and an external sealing component; the internal sealing component comprises an internal sealing seat and a sealing ring; the external sealing component comprises an external sealing seat; the internal sealing seat is sleeved on the transmission member and fixed on the water chamber, and is statically sealed by the sealing ring; the external sealing seat is positioned on the internal sealing seat by means of an installation stop; the transmission member is fixed on the external sealing seat by means of a bearing.

[0006] Furthermore, two sealing rings are arranged on the external sealing seat, and a grease storage groove is arranged between the two sealing rings.

[0007] Furthermore, a sealing ring is provided at the water-proximal end of the internal sealing seat, and the sealing ring is provided at the water-distal end.

[0008] Furthermore, a grease storage groove is provided between the inner sealing seat and the outer sealing seat.

[0009] Furthermore, the grease storage tanks are each provided with an oil injection channel connected to an external oil injection nozzle.

[0010] Furthermore, a plurality of sealing grooves are provided on the external sealing seat, and the sealing ring is arranged in the sealing grooves.

[0011] Furthermore, the sealing ring is made of nitrile rubber, fluororubber or fluorosilicone rubber.

[0012] Furthermore, the sealing ring is a polytetrafluoroethylene ring or a packing.

[0013] Furthermore, the external sealing seat is provided with no less than 2 sealing grooves.

[0014] Furthermore, the transmission member is fixed on the external sealing seat via a locking nut.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model has the following beneficial effects:

[0017] Adopting two inner and outer sealing seats, the inner sealing seat can initially block the medium to avoid large flow of medium gushing out when replacing the outer non-sealing seat;

[0018] 2) The external sealing seat can be replaced regularly online according to the frequency and cycle of use, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural diagram of the waterproof and sealed quick-change device.

[0020] Figure 1 In: 1-transmission part, 2-sealing ring, 3-internal sealing seat, 4-sealing ring, 5-grease storage tank, 6-water chamber partition, 7-external sealing seat, 8-bearing, 9-sleeve, 10-locking nut. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings.

[0022] The utility model discloses a waterproof sealing quick-change device, comprising a transmission part 1, a sealing ring 2, a sealing ring 4, a grease storage tank 5, a water chamber partition 6, an internal sealing seat 3, an external sealing seat 7, a bearing 8, a shaft sleeve 9 and a locking nut 10.

[0023] A sealing ring 2 and a sealing ring 4 are installed on the internal sealing seat 3. The internal sealing seat 3 is fixed on the water chamber partition 6, and a sealing ring is used for static sealing.

[0024] Two sealing rings 4 are installed on the external sealing seat 7, and a grease storage groove 5 is arranged between the two sealing rings, and a grease injection channel is connected to the outside, and grease is regularly injected using a grease injection nozzle. The external sealing seat is positioned on the internal sealing seat through the installation stop and fixed with screws.

[0025] The waterproof seal is achieved by the sealing ring and sealing ring on the internal sealing seat, and two sealing rings on the external sealing seat; the sealing ring material includes but is not limited to polytetrafluoroethylene rings and packing, which can effectively prevent impurities in the water from entering the sealing groove while ensuring low friction, thereby preventing the sealing ring from causing failure; the sealing ring is an O-ring, and the material of the O-ring is adjusted according to the sealing medium.

[0026] The transmission member 1 is fixed on the external sealing seat through the bearing 8, the bearing sleeve 9 and the locking nut 10; the transmission member can be driven by a power source such as a motor.

[0027] Quick change method: remove the locking nut and the connecting screws of the external seal seat, remove the external seal seat, and remove the two sealing rings; after cleaning, install the two sealing rings and lubricate them with grease, and inject grease into the grease storage tank; install the external seal seat and adjust the bearing position and fix it, and use the locking nut to limit the bearing.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A quick-change sealing and waterproof device, characterized in that: It includes a transmission member, an internal sealing component, and an external sealing component; the internal sealing component includes an internal sealing seat and a sealing ring; the external sealing component includes an external sealing seat; the internal sealing seat is sleeved on the transmission member, fixed on the water chamber partition, and statically sealed by the sealing ring; the external sealing seat is positioned on the internal sealing seat by means of a mounting stop; the transmission member is fixed on the external sealing seat by means of a bearing.

2. The sealing and waterproof device according to claim 1, characterized in that: The external sealing seat is provided with two sealing rings, and a grease storage groove is provided between the two sealing rings.

3. The sealing and waterproof device according to claim 2, characterized in that: The inner sealing seat is also provided with a sealing ring at the water-proximal end and the sealing ring at the water-distal end.

4. The sealing and waterproof device according to claim 3, characterized in that: A grease storage groove is provided between the inner sealing seat and the outer sealing seat.

5. The sealing and waterproof device according to claim 4, characterized in that: The grease storage tanks are all provided with oil injection channels connected to external oil injection nozzles.

6. The sealing and waterproof device according to claim 5, characterized in that: The external sealing seat is provided with a plurality of sealing grooves, and the sealing ring is arranged in the sealing grooves.

7. The sealing and waterproof device according to claim 6, characterized in that: The sealing ring is made of nitrile rubber, fluororubber or fluorosilicone rubber.

8. The sealing and waterproof device according to claim 7, characterized in that: The sealing ring is a polytetrafluoroethylene ring or a packing.

9. The sealing and waterproof device according to claim 8, characterized in that: The external sealing seat is provided with no less than 2 sealing grooves.

10. The sealing and waterproof device according to claim 9, characterized in that: The transmission member is fixed on the external sealing seat via a locking nut.

Images