A high-sealing spectacle valve

Abstract

This invention relates to the field of spectacle valves and provides a high-sealing spectacle valve, comprising a housing, a drive motor fixedly connected to the housing, and an end cap covering the housing. It also includes: a valve plate and a guide ring fixedly connected to the output shaft of the drive motor; a through hole in the middle of the housing, allowing communication with a pipeline; a rotating seat on the outside of the through hole, rotatably connected to the housing; a plurality of brushes arranged in a ring on the rotating seat; a transmission assembly between the output shaft of the drive motor and the rotating seat; and a collection groove on one side of the rotating seat. The high-sealing spectacle valve provided by this invention allows dust and impurities to be adsorbed into the lubricating oil when the brushes clean the air bladder, thus preventing dust from scattering. Simultaneously, the lubricating oil reduces the friction between the brushes and the surface of the air bladder.

Description

Technical Field

[0001] This invention belongs to the field of spectacle valves, and particularly relates to a high-sealing spectacle valve. Background Technology

[0002] A spectacle valve is a gate valve that shuts off gaseous media via manual, electric, pneumatic, or hydraulic operation. It has three actuation devices: two manual clamping / releasing mechanisms and one electric actuator to open or close the gate. To open or close the gate, first release the two manual mechanisms, then activate the electric actuator. After the gate is open or closed, clamp the two manual mechanisms back in, allowing the pipeline to operate. Compared to other valves that provide absolute shut-off in pipelines, the spectacle valve features a novel structure, light weight, small size, convenient operation, rapid action, and absolutely reliable gas shut-off performance.

[0003] The existing eye valve with publication number 201921877490.8 uses an elastic sealing element design to allow the second valve body to slide toward the first valve body, thereby creating a gap between the second valve body and the middle valve body. During use, the second valve body moves axially away from the middle valve body, creating a gap between the second valve body and the right valve body, thus avoiding the problem of friction between the middle valve body and the second valve body during radial rotation, which could easily lead to valve body damage.

[0004] In the above solution, although the use of elastic seals can reduce the friction between the second valve body and the middle valve body and the right valve body, it does not completely eliminate friction. Moreover, elastic seals are prone to fatigue damage during long-term use, which affects the sealing effect. On the other hand, when the middle valve body rotates to the outside of the pipeline, it is easy to get dust and impurities, which will affect the sealing between the middle valve body and the two valve bodies when it is reconnected to the pipeline.

[0005] To avoid the aforementioned technical problems, it is indeed necessary to provide a high-sealing spectacle valve to overcome the deficiencies in the prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a high-sealing spectacle valve, aiming to solve the problem of how to achieve high sealing performance in spectacle valves.

[0007] This invention is implemented as follows: a high-sealing spectacle valve includes a housing, a drive motor fixedly connected to the housing, and an end cap that is covered by the housing. The end cap has the same structure as the housing. The valve also includes:

[0008] The output shaft of the drive motor is fixedly connected to a valve plate and a guide ring. A through hole is provided in the middle of the housing, which can communicate with a pipe. A rotating seat is provided on the outside of the through hole, which is rotatably connected to the housing. Several brushes are arranged in a ring on the rotating seat. A transmission assembly is provided between the output shaft of the drive motor and the rotating seat, which is used to drive the rotating seat to rotate.

[0009] A collection trough is provided on one side of the rotating seat, and a filter plate is fixedly connected in the collection trough. A material guide trough is provided through the filter plate. An oil tank is provided in the outer shell, and an oil pipe is connected to the oil tank. The oil outlet of the oil pipe is directly facing the brush.

[0010] The valve plate and the guide ring are both provided with air bladders on their front and back sides, and a sealing groove is provided between the through hole and the rotating seat.

[0011] In a further technical solution, the transmission assembly includes a first gear, a second gear, a third gear, and a gear ring;

[0012] The first gear is fixedly connected to the output shaft of the drive motor. The second and third gears are rotatably connected to the inner end face of the housing. The second gear meshes with the third gear, the second gear meshes with the first gear, and the third gear meshes with the gear ring. The gear ring is fixedly connected to the rotating seat.

[0013] In a further technical solution, the diameter of the first gear is larger than that of the second gear, and the diameter of the second gear is larger than that of the third gear.

[0014] In a further technical solution, the filter plate is provided with multiple arc-shaped scraping grooves.

[0015] In a further technical solution, two filter plates are fixedly connected in the collection tank, and the arc-shaped scraping holes on the two filter plates are arranged opposite to each other.

[0016] In a further technical solution, two adjusting screws are provided between the outer shell and the end cover, and the two adjusting screws are arranged in a triangle with the output shaft of the drive motor.

[0017] A further technical solution is to install a pressure valve at the oil pipe. When the end cap is tightly closed with the outer shell, the pressure valve is closed under pressure. When the end cap is separated from the outer shell, the pressure valve is opened.

[0018] In a further technical solution, the airbag is connected to an air pump.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This invention provides a high-sealing spectacle valve. A drive motor drives a rotating seat to rotate via a transmission assembly. The rotating seat drives a brush to clean the valve plate and the airbags on both sides of the guide ring. An oil pipe sprays lubricating oil onto the brush. When the brush cleans the airbags, dust and impurities are absorbed into the lubricating oil, thus preventing dust from scattering. At the same time, the lubricating oil can also reduce the friction between the brush and the surface of the airbag. A filter plate scrapes off the dust and impurities on the brush. At this time, the scraped dust and lubricating oil enter the collection tank through the guide trough.

[0021] The present invention provides a high-sealing spectacle valve, wherein a guide ring is sleeved outside the through hole. When the drive motor stops moving, the outer shell and the end cap are closed. The air bladders on both sides of the guide ring enter the sealing grooves on the outer shell and the end cap, thereby sealing the guide ring with the outer shell and the end cap. The lubricating oil on the surface of the air bladder can increase the sealing performance.

[0022] The present invention provides a high-sealing spectacle valve. When the valve plate and the guide ring switch positions, the airbags on both sides of the valve plate and the guide ring are first extracted by an air pump, thereby avoiding contact between the airbags and the outer shells and end caps on both sides, which would increase the wear on the surface of the airbags. At the same time, after the air in the airbags is discharged, the contact area between the airbags and the brush can be increased, thereby increasing the cleaning effect on the outer surface of the airbags. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the transmission assembly.

[0025] Figure 3 for Figure 1 Rear view;

[0026] Figure 4 This is a schematic diagram showing the connection between the valve plate and the conduction ring;

[0027] Figure 5 for Figure 2 Enlarged structural diagram of region A in the middle;

[0028] Figure 6 for Figure 1 A magnified structural diagram of region B in the middle.

[0029] In the attached diagram: 1. Outer shell; 2. Drive motor; 3. Valve plate; 4. Conductor ring; 5. Through hole; 6. Rotating seat; 7. Brush; 8. Transmission assembly; 81. Gear No. 1; 82. Gear No. 2; 83. Gear No. 3; 84. Gear ring; 9. Sealing groove; 10. Collection groove; 11. Filter plate; 12. Feed guide chute; 13. Oil tank; 14. Oil pipe; 15. Airbag; 16. Air pump; 17. Arc-shaped scraper; 18. Adjusting screw; 19. Pressure valve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] like Figures 1-6 As shown, a high-sealing spectacle valve provided by the present invention includes a housing 1, a drive motor 2 fixedly connected to the housing 1, and an end cap that is covered by the housing 1. The end cap has the same structure as the housing 1. The valve also includes:

[0033] The output shaft of the drive motor 2 is fixedly connected to a valve plate 3 and a guide ring 4. A through hole 5 is provided in the middle of the outer shell 1, which can communicate with a pipe. A rotating seat 6 is provided on the outside of the through hole 5. The rotating seat 6 is rotatably connected to the outer shell 1. Several brushes 7 are arranged in a ring on the rotating seat 6. A transmission assembly 8 is provided between the output shaft of the drive motor 2 and the rotating seat 6. The transmission assembly 8 is used to drive the rotating seat 6 to rotate.

[0034] A collection trough 10 is provided on one side of the rotating seat 6. A filter plate 11 is fixedly connected in the collection trough 10. A guide trough 12 is provided through the filter plate 11. An oil tank 13 is provided in the outer shell 1. An oil pipe 14 is connected to the oil tank 13. The oil outlet of the oil pipe 14 is directly facing the brush 7.

[0035] The valve plate 3 and the guide ring 4 are both provided with airbags 15 in a ring on both sides, and a sealing groove 9 is provided between the through hole 5 and the rotating seat 6.

[0036] Working principle:

[0037] In use, the end cap is separated from the outer shell 1, and the drive motor 2 is started. The drive motor 2 simultaneously drives the valve plate 3 and the guide ring 4 to rotate. At this time, the valve plate 3 is disengaged from the through hole 5, and the guide ring 4 moves closer to the through hole 5. The drive motor 2 drives the rotating seat 6 to rotate through the transmission component 8. The rotating seat 6 drives the brush 7 to clean the airbags 15 on both sides of the valve plate 3 and the guide ring 4. The oil pipe 14 sprays lubricating oil onto the brush 7. When the brush 7 cleans the airbags 15, the dust and impurities are absorbed into the lubricating oil, thereby preventing the dust from flying away. At the same time, the lubricating oil can also reduce the friction between the brush 7 and the surface of the airbag 15. The filter plate 11 scrapes off the dust and impurities on the brush 7. At this time, the scraped dust and lubricating oil enter the collection tank 10 through the guide groove 12.

[0038] Afterwards, the guide ring 4 is fitted outside the through hole 5, the drive motor 2 stops moving, and the outer shell 1 and the end cover are closed. The airbags 15 on both sides of the guide ring 4 enter the sealing grooves 9 on the outer shell 1 and the end cover, thereby sealing the guide ring 4 with the outer shell 1 and the end cover. The lubricating oil on the surface of the airbag 15 can increase the sealing performance.

[0039] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, the transmission assembly 8 includes a first gear 81, a second gear 82, a third gear 83, and a gear ring 84. The first gear 81 is fixedly connected to the output shaft of the drive motor 2. The second gear 82 and the third gear 83 are rotatably connected to the inner end face of the outer casing 1. The second gear 82 meshes with the third gear 83, the second gear 82 meshes with the first gear 81, and the third gear 83 meshes with the gear ring 84. The gear ring 84 is fixedly connected to the rotating seat 6. The output shaft of the drive motor 2 drives the first gear 81 to rotate, the first gear 81 drives the second gear 82 to rotate, and the third gear 83 drives the rotating seat 6 to rotate through meshing with the gear ring 84. The rotating seat 6 drives all the brushes 7 to clean the surface of the airbag 15. The diameter of the first gear 81 is larger than that of the second gear 82, and the diameter of the second gear 82 is larger than that of the third gear 83, which can increase the transmission ratio, make the rotating seat 6 rotate faster, and make the cleaning effect of the brushes 7 stronger.

[0040] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, the filter plate 11 is provided with a plurality of arc-shaped scraping holes 17. The cleaning effect of the brush 7 can be increased by cleaning the brush 7 through the arc-shaped scraping holes 17. Two filter plates 11 are fixedly connected in the collection groove 10, and the arc-shaped scraping holes 17 on the two filter plates 11 are arranged opposite to each other, so that the filter plates 11 can clean the brush 7 when the rotating seat 6 rotates in both directions.

[0041] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, two adjusting screws 18 are provided between the outer shell 1 and the end cover. The two adjusting screws 18 are arranged in a triangle with the output shaft of the drive motor 2. Rotating the adjusting screws 18 can increase the distance between the outer shell 1 and the end cover. Then, the drive motor 2 is started to switch the positions of the valve plate 3 and the conduction ring 4, thereby realizing the opening and closing of the pipeline. After the switching is completed, the adjusting screws 18 are rotated in the opposite direction to make the outer shell 1 and the end cover close again.

[0042] In embodiments of the present invention, such as Figure 1As shown, in a preferred embodiment of the present invention, a pressure valve 19 is provided at the oil pipe 14. When the end cap is closed with the outer shell 1, the pressure valve 19 is closed by pressure. When the end cap is separated from the outer shell 1, the pressure valve 19 is opened. By controlling the opening and closing of the pressure valve 19 through the opening and closing of the end cap and the outer shell 1, oil output can be carried out when the valve plate 3 and the conductive ring 4 switch positions, effectively controlling the oil volume and saving resources.

[0043] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, the airbag 15 is connected to an air pump 16; when the valve plate 3 and the guide ring 4 switch positions, the airbag 15 on both sides of the valve plate 3 and the guide ring 4 is first extracted by the air pump 16, thereby avoiding contact between the airbag 15 and the outer shell 1 and end cap on both sides, increasing the wear on the surface of the airbag 15. At the same time, after the air in the airbag 15 is discharged, the contact area between the airbag 15 and the brush 7 can be increased, thereby increasing the cleaning effect on the outer surface of the airbag 15.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-sealing spectacle valve, comprising a housing (1), wherein a drive motor (2) is fixedly connected to the housing (1), and an end cap is fitted over the housing (1), the end cap having the same structure as the housing (1), characterized in that, Also includes: The output shaft of the drive motor (2) is fixedly connected to a valve plate (3) and a guide ring (4). A through hole (5) is provided in the middle of the outer shell (1). The through hole (5) can communicate with a pipe. A rotating seat (6) is provided on the outside of the through hole (5). The rotating seat (6) is rotatably connected to the outer shell (1). Several brushes (7) are arranged in a ring on the rotating seat (6). A transmission assembly (8) is provided between the output shaft of the drive motor (2) and the rotating seat (6). The transmission assembly (8) is used to drive the rotating seat (6) to rotate. A collection trough (10) is provided on one side of the rotating seat (6), and a filter plate (11) is fixedly connected in the collection trough (10). A guide trough (12) is provided through the filter plate (11). An oil tank (13) is provided in the outer shell (1), and an oil pipe (14) is connected to the oil tank (13). The oil outlet of the oil pipe (14) is directly opposite the brush (7). The valve plate (3) and the guide ring (4) are both provided with airbags (15) in a ring on both sides, and a sealing groove (9) is provided between the through hole (5) and the rotating seat (6). The transmission assembly (8) includes a first gear (81), a second gear (82), a third gear (83), and a gear ring (84). The first gear (81) is fixedly connected to the output shaft of the drive motor (2), the second gear (82) and the third gear (83) are rotatably connected to the inner end face of the outer shell (1), the second gear (82) meshes with the third gear (83), the second gear (82) meshes with the first gear (81), the third gear (83) meshes with the gear ring (84), and the gear ring (84) is fixedly connected to the rotating seat (6); The filter plate (11) is provided with multiple arc-shaped scraping holes (17); Two filter plates (11) are fixedly connected in the collection tank (10), and the arc-shaped scraping holes (17) on the two filter plates (11) are arranged opposite to each other; Two adjusting screws (18) are provided between the outer shell (1) and the end cover, and the two adjusting screws (18) and the output shaft of the drive motor (2) are arranged in a triangle. A pressure valve (19) is provided at the oil pipe (14). When the end cap is closed with the outer shell (1), the pressure valve (19) is closed by pressure. When the end cap is separated from the outer shell (1), the pressure valve (19) is opened.

2. The high-sealing spectacle valve according to claim 1, characterized in that, The diameter of the first gear (81) is greater than that of the second gear (82), and the diameter of the second gear (82) is greater than that of the third gear (83).

3. The high-sealing spectacle valve according to claim 1, characterized in that, The airbag (15) is connected to an air pump (16).

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