Mechanical sealing assembly with anti-blocking effect

Abstract

The utility model belongs to the technical field of mechanical sealing, and particularly relates to a mechanical sealing assembly with an anti-blocking effect, which comprises an external pipe, a fixing mechanism is arranged on the circumferential surface of the external connecting pipe, a sealing mechanism is arranged on the inner side of the external connecting pipe, a filtering mechanism is arranged on the inner side of the sealing mechanism and comprises a connecting pipe, a filtering net is fixed to the center of the inner side of the connecting pipe, and a limiting groove is formed in the circumferential surface of the inner side of the connecting pipe; limiting rings are buckled on the inner sides of the limiting grooves, fan blades are fixed to the inner sides of the limiting rings, the outer connecting pipes on the two sides are connected through cooperation of the connecting pipes, liquid or gas media flow on the inner sides of the outer connecting pipes under cooperation of the connecting pipes, and meanwhile the fan blades are driven to rotate under cooperation of the limiting rings in the flowing process of the media. At the moment, the fan blades scrape impurities on the surface of the filter screen, so that the pipeline is ensured to be normal, the sealing assembly is prevented from being blocked after being used for a long time, and the problem that an existing sealing assembly is easily blocked after being used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal assembly with an anti-blocking effect. Background Technique

[0002] During the process of transporting liquid or gas media, it is necessary to fixedly connect the pipelines at the output end or input end of the equipment. At this time, in order to prevent the transported substances from leaking at the connection, a mechanical seal assembly will be used and installed at the equipment connection to provide effective sealing, so as to ensure that the liquid or gas media does not leak during the transportation process.

[0003] A mechanical seal assembly with an anti-blocking effect, with the bulletin number CN217382122U, takes the oil pump main body as the main body. A pipeline docking seat is fixed on the top side of the oil pump main body, and a clamping and sealing mechanism is arranged on the side of the pipeline docking seat. When in use, through the structure of the docking seat, this mechanical seal assembly can facilitate the connection between the oil pump main body and the external pipeline, and the docking connection is simple to operate and quick to disassemble and assemble. At this time, under the cooperation of the clamping and sealing mechanism and the wedge-shaped extrusion block, a downward thrust can be applied to the rubber pad inside the pipeline docking seat. At this time, the clamping and sealing block squeezes the rubber sealing block, so that the pipeline connection is in a sealed environment, and the anti-blocking filter screen can prevent impurities in the transported medium, thereby preventing the equipment from being blocked and unable to be used, and prolonging the service life of the equipment.

[0004] The above-mentioned mechanical seal assembly with an anti-blocking effect still has problems. When this mechanical seal assembly is used, the anti-blocking filter screen filters out impurities. After long-term use, a large amount of impurities will remain on the surface of the anti-blocking filter screen, causing the mechanical seal assembly to be blocked. Therefore, a mechanical seal assembly with an anti-blocking effect is proposed. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, when the mechanical seal assemblies on the market are used, the anti-blocking filter screen filters out impurities. After long-term use, a large amount of impurities will remain on the surface of the anti-blocking filter screen, causing the mechanical seal assembly to be blocked. The utility model proposes a mechanical seal assembly with an anti-blocking effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A mechanical seal assembly with an anti-blocking effect described in the utility model includes an outer connecting pipe; a fixing mechanism is arranged on the circumferential surface of the outer connecting pipe, a sealing mechanism is arranged inside the outer connecting pipe, a filtering mechanism is arranged inside the sealing mechanism, and a connecting pipe is buckled inside the outer connecting pipe.

[0007] Preferably, the filtering mechanism includes a connecting pipe. At the center of the inner side of the connecting pipe, a filter screen is fixed. On the circumferential surface of the inner side of the connecting pipe, a limiting groove is formed, and the limiting groove is located on one side of the filter screen. A limiting ring is buckled inside the limiting groove, and the limiting ring is rotatably connected to the limiting groove. A fan blade is fixed inside the limiting ring. The fan blade is in close contact with the surface of the filter screen and is slidably connected to the filter screen. A fixed seat is fixed on the circumferential surface of the middle of the connecting pipe. By using the fan blade and the filter screen in cooperation, when the liquid or gas medium flows, the fan blade can be driven to rotate, so as to scrape off the impurities accumulated on the surface of the filter screen, so that the sealing component will not be blocked after long-term use.

[0008] Preferably, the sealing mechanism includes a fixed seat. An air valve is fixed on the circumferential surface of the fixed seat. Sealing grooves are formed on the circumferential surfaces at both ends of the connecting pipe. An airbag is fixed inside the sealing grooves. The two airbags are communicated with each other through an air delivery pipe. A conduit is fixed on the circumferential surface of the middle of the air delivery pipe. One end of the conduit passes through the fixed seat and is fixed to the air valve. The conduit is communicated with the inside of the air delivery pipe. Threaded rods are evenly fixed on both sides of the fixed seat. By using the air delivery pipe and the airbag in cooperation, the airbag can be inflated to closely fit the inner surface of the external connecting pipe, so as to prevent the medium inside the pipeline from leaking, and the sealing component can be applied to a variety of working environments.

[0009] Preferably, the fixing mechanism includes a threaded rod. An external connecting pipe is buckled on the threaded rod through a connecting seat. Rubber pads are fixed on both sides of the fixed seat. The rubber pads are in close contact with the connecting seat. One end of the threaded rod passes through the connecting seat and is provided with a nut, and the nut is rotatably connected to the threaded rod. By fixing with the threaded rod and the nut, the structure is simple and the disassembly and assembly are convenient, which is convenient for subsequent maintenance and replacement, so as to extend the service life of the sealing component.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the structural design of a mechanical sealing component with an anti-blocking effect, the present utility model sets a filtering mechanism. The two external connecting pipes are connected through the cooperation of the connecting pipe. At this time, the liquid or gas medium flows inside the external connecting pipe under the cooperation of the connecting pipe. At the same time, during the flow of the medium, the fan blade will be driven to rotate under the cooperation of the limiting ring. At this time, the fan blade will scrape off the impurities on the surface of the filter screen, so as to ensure the normal pipeline and prevent the sealing component from being blocked after long-term use, solving the problem that the existing sealing component is easy to be blocked after long-term use.

[0012] 2. Through the structural design of a mechanical seal assembly with anti-blocking effect, the utility model sets a sealing mechanism. The outer connecting pipe is sleeved at both ends of the connecting pipe respectively. At this time, the air valve can be opened, and air is filled into the inner side of the air valve. The air is transported to the inner side of the airbag through the conduit and the air delivery pipe, promoting the airbag to expand inside the sealing groove and closely fit with the inner surface of the outer connecting pipe, ensuring that the medium inside the pipeline does not leak. Moreover, this structure is applicable to outer connecting pipes of various sizes, with a wider scope of application. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic perspective view of the overall front view;

[0015] Figure 2 It is a sectional view of the side perspective structure of the filtering mechanism;

[0016] Figure 3 It is a sectional view of the front perspective structure of the sealing mechanism;

[0017] Figure 4 It is a sectional view of the rear perspective structure of the fixing mechanism;

[0018] Figure 5 It is a schematic perspective view of the overall front view.

[0019] In the figure: 1. Outer connecting pipe; 2. Connecting pipe; 3. Filter screen; 4. Limit groove; 5. Limit ring; 6. Fan blade; 7. Fixed seat; 8. Rubber pad; 9. Sealing groove; 10. Airbag; 11. Air delivery pipe; 12. Conduit; 13. Air valve; 14. Threaded rod; 15. Connecting seat; 16. Nut; 17. Bracket; 18. Rotating shaft. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1-4As shown in the figure, a mechanical seal assembly with anti-blocking effect includes an outer connecting pipe 1; a fixing mechanism is arranged on the circumferential surface of the outer connecting pipe 1, a sealing mechanism is arranged inside the outer connecting pipe 1, a filtering mechanism is arranged inside the sealing mechanism, and a connecting pipe 2 is buckled inside the outer connecting pipe 1;

[0022] Please refer to Figure 2 As shown in the figure, the filtering mechanism includes a connecting pipe 2. A filter screen 3 is fixed at the center inside the connecting pipe 2. A limiting groove 4 is formed on the circumferential surface inside the connecting pipe 2, and the limiting groove 4 is located on one side of the filter screen 3. A limiting ring 5 is buckled inside the limiting groove 4, and the limiting ring 5 is rotatably connected with the limiting groove 4. A fan blade 6 is fixed inside the limiting ring 5. The fan blade 6 is in close contact with the surface of the filter screen 3 and is slidably connected with the filter screen 3. A fixing seat 7 is fixed on the circumferential surface in the middle of the connecting pipe 2. During operation, when encountering the problem that the filter screen of the existing seal assembly is easily blocked after long-term use, through the structure of the filtering mechanism, the two sides of the outer connecting pipe 1 are connected by means of the connecting pipe 2. At this time, the liquid or gas medium flows inside the outer connecting pipe 1 with the cooperation of the connecting pipe 2. At the same time, during the flow of the medium, the fan blade 6 will be driven to rotate with the cooperation of the limiting ring 5. At this time, the fan blade 6 will scrape off the impurities on the surface of the filter screen 3, so as to ensure the normal flow of the pipeline and prevent the seal assembly from being blocked after long-term use.

[0023] Please refer to Figure 3 As shown in the figure, the sealing mechanism includes a fixing seat 7. An air valve 13 is fixed on the circumferential surface of the fixing seat 7. Sealing grooves 9 are formed on the circumferential surfaces at both ends of the connecting pipe 2. An airbag 10 is fixed inside the sealing grooves 9. The two airbags 10 are communicated with each other through an air delivery pipe 11. A conduit 12 is fixed on the circumferential surface in the middle of the air delivery pipe 11. One end of the conduit 12 passes through the fixing seat 7 and is fixed to the air valve 13. The conduit 12 is communicated with the inside of the air delivery pipe 11. Threaded rods 14 are evenly fixed on both sides of the fixing seat 7. During operation, when encountering the problem that the existing seal assembly has a small application range, through the structure of the sealing mechanism, the outer connecting pipes 1 are respectively sleeved on both ends of the connecting pipe 2. At this time, the air valve 13 can be opened, and air is filled into the air valve 13. The air is transported to the inside of the airbag 10 through the conduit 12 and the air delivery pipe 11, prompting the airbag 10 to expand inside the sealing groove 9 and closely fit with the inner surface of the outer connecting pipe 1, ensuring that the medium inside the pipeline will not leak, and this structure can be applicable to outer connecting pipes 1 of various sizes, with a wider application range.

[0024] Please refer to Figure 4As shown in the figure, the fixing mechanism includes a threaded rod 14. An outer connecting pipe 1 is fitted and buckled on the threaded rod 14 through a connecting seat 15. Rubber pads 8 are fixed on both sides of the fixing seat 7. The rubber pads 8 are in close contact with the connecting seat 15. One end of the threaded rod 14 passes through the connecting seat 15 and is provided with a nut 16, and the nut 16 is rotatably connected to the threaded rod 14. During operation, when encountering the problem that the disassembly and assembly of the existing sealing component is relatively cumbersome, through the structure of the fixing mechanism, the outer connecting pipes 1 on both sides are sleeved on the connecting pipe 2, the threaded rod 14 is inserted through the connecting seat 15 at one end of the outer connecting pipe 1, the nut 16 is sleeved on one end of the threaded rod 14, and the nut 16 is rotated to push the connecting seat 15 to tightly press against the side of the rubber pad 8, thereby completing the fixation of the outer connecting pipe 1. This structure is convenient for disassembly and assembly, facilitating subsequent maintenance and replacement, and at the same time preventing the leakage of the medium inside the pipeline.

[0025] Please refer to Figure 5 As shown in the figure, a bracket 17 is fixed inside the connecting pipe 2. A rotating shaft 18 is rotatably installed inside the bracket 17. A fan blade 6 is fixed at one end of the rotating shaft 18. During operation, when encountering the problem that the friction between the limiting ring 5 and the limiting groove 4 is relatively large, affecting the rotation of the fan blade 6, through the cooperation of the rotating shaft 18 and the bracket 17, the fan blade 6 can be driven to rotate when transporting liquid or gas medium, and the friction between the rotating shaft 18 and the bracket 17 is relatively small, making it easier for the fan blade 6 to scrape off the impurities on the surface of the filter screen 3 and preventing the equipment from being blocked.

[0026] Working principle: During the process of transporting liquid or gas media, it is necessary to fixedly connect the pipelines at the output end or input end of the equipment. At this time, in order to prevent the transported substances from leaking at the connection, a mechanical seal assembly is used and installed at the equipment connection to provide effective sealing, thereby ensuring that there is no leakage during the transportation of liquid or gas media. When the existing mechanical seal assembly is in use, the anti-blocking filter screen filters out impurities. After long-term use, a large amount of impurities will remain on the surface of the anti-blocking filter screen, causing the mechanical seal assembly to become blocked. To solve this problem, by setting up a filtering mechanism and a sealing mechanism, the outer connecting pipes 1 on both sides are sleeved on the connecting pipe 2, the threaded rod 14 is inserted through the connecting seat 15 at one end of the outer connecting pipe 1, the nut 16 is sleeved on one end of the threaded rod 14, and the nut 16 is rotated to push the connecting seat 15 to tightly press against the side of the rubber pad 8, thus completing the fixation of the outer connecting pipe 1. At this time, the air valve 13 can be opened, and air is filled into the inner side of the air valve 13, so that the air is transported to the inner side of the airbag 10 through the conduit 12 and the air delivery pipe 11, prompting the airbag 10 to expand inside the sealing groove 9 and tightly fit with the inner surface of the outer connecting pipe 1, ensuring that the media inside the pipeline does not leak. Moreover, this structure is applicable to outer connecting pipes 1 of various sizes, with a wider scope of application. At this time, when the liquid or gas media flows inside the outer connecting pipe 1 under the cooperation of the connecting pipe 2, the media will drive the fan blade 6 to rotate under the cooperation of the limiting ring 5. At this time, the fan blade 6 will scrape off the impurities on the surface of the filter screen 3, thereby ensuring the smoothness of the pipeline and preventing the seal assembly from being blocked after long-term use. After long-term use, the nut 16 can be rotated and removed, and then the outer connecting pipes 1 on both sides can be taken off. At this time, the connecting pipe 2 can be cleaned and maintained, thereby extending the service life of the seal assembly and solving the problem that the existing seal assembly is prone to blockage after long-term use.

[0027] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A mechanical seal assembly with an anti-clogging effect, characterized in that: It includes an external connecting pipe (1); a fixing mechanism is arranged on the circumferential surface of the external connecting pipe (1), a sealing mechanism is arranged inside the external connecting pipe (1), a filtering mechanism is arranged inside the sealing mechanism, and a connecting pipe (2) is buckled inside the external connecting pipe (1); The filtering mechanism includes a connecting pipe (2), a filter screen (3) is fixed at the center inside the connecting pipe (2), a limiting groove (4) is formed on the circumferential surface inside the connecting pipe (2), and the limiting groove (4) is located on one side of the filter screen (3). A limiting ring (5) is buckled inside the limiting groove (4), and the limiting ring (5) is rotatably connected to the limiting groove (4). A fan blade (6) is fixed inside the limiting ring (5).

2. The mechanical seal assembly with anti-clogging effect according to claim 1, wherein: The fan blade (6) is in close contact with the surface of the filter screen (3), and the fan blade (6) is slidably connected to the filter screen (3). A fixing seat (7) is fixed on the circumferential surface in the middle of the connecting pipe (2).

3. The mechanical seal assembly with anti-blocking effect according to claim 2, characterized in that: The sealing mechanism includes a fixing seat (7), an air valve (13) is fixed on the circumferential surface of the fixing seat (7), sealing grooves (9) are formed on the circumferential surfaces at both ends of the connecting pipe (2), and an airbag (10) is fixed inside the sealing grooves (9).

4. The mechanical seal assembly with anti-blocking effect according to claim 3, characterized in that: The two airbags (10) are connected and communicated through an air delivery pipe (11). A conduit (12) is fixed on the circumferential surface in the middle of the air delivery pipe (11). One end of the conduit (12) passes through the fixing seat (7) and is fixed to the air valve (13). The conduit (12) is internally communicated with the air delivery pipe (11). Threaded rods (14) are evenly fixed on both sides of the fixing seat (7).

5. A mechanical seal assembly with anti-clogging effect according to claim 4, characterized in that: The fixing mechanism includes a threaded rod (14), an external connecting pipe (1) is buckled on the threaded rod (14) through a connecting seat (15), and rubber pads (8) are fixed on both sides of the fixing seat (7).

6. The mechanical seal assembly with anti-blocking effect according to claim 5, characterized in that: The rubber pads (8) are in close contact with the connecting seat (15). A nut (16) is installed at one end of the threaded rod (14) passing through the connecting seat (15), and the nut (16) is rotatably connected to the threaded rod (14).

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