Eccentric flap emptying valve

Abstract

The utility model relates to the technical field of blade type filters in grease processing factories, in particular to an eccentric flap emptying valve. Comprising a valve body, a connecting shaft is rotationally connected into the valve body, padding is fixed to the positions, located on the outer side of the connecting shaft, in the two ends of the valve body, a bearing is fixed to one end of the valve body, and the outer side of one end of the connecting shaft is connected with the bearing; a valve seat sealing ring is fixed to the output end of the driver and the interior of the connecting shaft fixing valve body. According to the eccentric turning plate emptying valve, the valve plate, the valve body, the connecting rod mechanism and the positioning mechanism are matched, so that the connecting shaft rotates to drive the valve plate to be opened and closed through the connecting mechanism, meanwhile, the valve plate rotates to be stably opened and closed through the matching of the positioning mechanism, and therefore the service life of the emptying valve can be prolonged; and meanwhile, the sealing effect is improved through the sealing ring, and the sealing ring can be independently replaced only by detaching the first sealing pressing plate and the second sealing pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf-type filters in oil processing plants, in particular to an eccentric flap discharge valve. Background Art

[0002] At present, the bottom discharge valve of the filter adopts the traditional center line soft seal butterfly valve. When the valve is opened and closed, the butterfly plate and the valve seat are constantly rubbing. Because the medium is activated clay, the valve seat seal will wear and leak after a period of use. The valve seat needs to be stopped and replaced, causing great losses. The key is that the use time is not long after replacement. After a period of time, the edge of the butterfly plate seal is worn and replaced with a new valve seat. It cannot seal and can only be scrapped. The traditional bottom discharge valve of the filter cannot completely drain the oil because there is a large gap between the valve plate and the drain port. In the end, it is lost in the waste clay, resulting in huge oil losses in the production process.

[0003] The electric eccentric flap discharge valve is designed for the discharge valve at the bottom of the leaf filter in the refining workshop of the oil processing plant. The service life is short, the seal is not wear-resistant, and the maintenance is inconvenient. The gap between the bottom flange of the filter and the butterfly valve plate is relatively large, and the bottom oil cannot be completely discharged, resulting in a lot of waste every year (if it is opened 10 times a day, about 15 liters are wasted each time, and about 400,000 yuan of oil can be saved in a year).

[0004] To this end, an eccentric flap discharge valve is designed to provide another technical solution to the above technical problem. Utility Model Content

[0005] Based on this, it is necessary to provide an eccentric flap discharge valve to solve the technical problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An eccentric flap discharge valve comprises a valve body, a connecting shaft is rotatably connected inside the valve body, packings are fixed inside both ends of the valve body and outside the connecting shaft, a bearing is fixed to one end of the valve body, the outer side of one end of the connecting shaft is connected to the bearing, a driver is fixed to the other end of the valve body, and the output end of the driver is fixed to the connecting shaft, a valve seat sealing ring is fixed inside the valve body, and a valve plate is arranged inside the valve body and on the top of the valve seat sealing ring;

[0008] A positioning mechanism for limiting position is installed on the top of the valve plate, and the positioning mechanism includes a supporting crank arm and a limiting block. The top of the valve plate is rotatably connected to the supporting crank arm, and the end of the supporting crank arm away from the valve plate is rotatably connected to the limiting block, and the limiting block is fixed to the valve body.

[0009] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, an extrusion slope is provided on the inner side of the top end of the valve seat sealing ring.

[0010] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, a connecting channel is fixed on one side of the valve body and located on the top of the valve seat sealing ring, and an exhaust port is opened inside the valve body and the connecting channel.

[0011] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, the bottom end of the inside of the discharge port and the top of the valve plate are located in the same horizontal plane.

[0012] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, a first sealing pressure plate is fixed to the outer side of the valve plate, a second sealing pressure plate is bolted to the bottom of the first sealing pressure plate, and a sealing ring is fixed between the first sealing pressure plate and the outer side of the second sealing pressure plate.

[0013] As a preferred implementation of the eccentric flap discharge valve provided by the utility model, the limit block is located at the top end of the emptying port inside the valve body.

[0014] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, a connecting rod mechanism is installed inside the valve body and at the bottom of the valve plate, and the connecting rod mechanism includes a power crank arm, a positioning seat and a pin shaft. A power crank arm is fixed to the outside of the connecting shaft, one end of the power crank arm is rotatably connected to the positioning seat, the top of the positioning seat is fixed to the valve plate, the inside of the bottom end of the positioning seat is rotatably connected to the pin shaft, and the power crank arm and the positioning seat are rotatably connected via the pin shaft.

[0015] As a preferred embodiment of the eccentric flap discharge valve provided by the utility model, a through groove is provided inside one end of the power crank arm and outside the pin shaft, and the diameter of the through groove is larger than the diameter of the pin shaft.

[0016] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0017] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0018] The utility model provides an eccentric flap discharge valve, through the cooperation of the valve plate, valve body, connecting rod mechanism and positioning mechanism, so that the rotation of the connecting shaft can drive the valve plate to open and close through the connecting mechanism, and at the same time, the rotation of the valve plate can be stably opened and closed through the cooperation of the positioning mechanism, thereby improving the service life of the discharge valve, and at the same time, the sealing effect is increased by the sealing ring, and when the sealing ring is replaced, it only needs to be disassembled between the first sealing pressure plate and the second sealing pressure plate to replace them separately, and at the same time, the bottom of the emptying port opened inside the valve body is parallel to the top of the valve plate, so that the oil can be completely discharged, reducing the loss, and according to normal production, about 400,000 yuan of oil can be saved each year;

[0019] Through the cooperation of the connecting rod mechanism and the positioning mechanism, the rotation of the connecting rod mechanism can drive the valve plate to rise, and the connecting rod mechanism can be separated from the valve seat sealing ring and then flipped 90 degrees to fully open the valve plate. When closing, the rotating connecting shaft is reversed, and finally it contacts and seals in parallel with the valve seat sealing ring;

[0020] Through the cooperation of the first sealing pressure plate, the second sealing pressure plate, the sealing ring and the valve seat sealing ring, when the first sealing pressure plate and the second sealing pressure plate are in contact with the extrusion inclined surface on the valve seat sealing ring, hard sealing can be achieved through line contact, and the sealing effect can be achieved again through the cooperation of the sealing ring. At the same time, through the contact of the second sealing pressure plate with the extrusion inclined surface on the valve seat sealing ring, the sealing ring can be prevented from breaking when the sealing ring is squeezed, thereby increasing the service life of the sealing ring. At the same time, when the first sealing pressure plate, the second sealing pressure plate and the sealing ring are in contact with the extrusion inclined surface on the valve seat sealing ring to achieve sealing, the residue on the extrusion inclined surface on the valve seat sealing ring can be scraped clean by extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the valve body of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the power crank arm of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the connecting channel of the utility model;

[0026] Figure 5It is a structural schematic diagram of the sealing ring of the utility model.

[0027] In the figure: 1. bearing; 2. connecting shaft; 3. packing; 4. valve plate; 5. valve body; 6. driver; 7. power crank arm; 8. positioning seat; 9. pin shaft; 10. supporting crank arm; 11. limit block; 12. first sealing pressure plate; 13. second sealing pressure plate; 14. sealing ring; 15. valve seat sealing ring; 16. connecting channel; 17. drain port. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] Reference Figure 1-Figure 5 , an eccentric flap discharge valve, including a valve body 5, the valve body 5 is internally rotatably connected with a connecting shaft 2, and packings 3 are fixed inside the two ends of the valve body 5 and on the outside of the connecting shaft 2, so that the sealing effect between the connecting shaft 2 and the valve body 5 can be achieved through the packings 3 to prevent the liquid inside the valve body 5 from leaking from between the connecting shaft 2 and the valve body 5, one end of the valve body 5 is fixed with a bearing 1, and the outer side of one end of the connecting shaft 2 is connected to the bearing 1, so that the rotation of the connecting shaft 2 can be stable, so that the connecting shaft 2 can only rotate but not move inside the bearing 1, and the other end of the valve body 5 is fixed with a driver 6, and the output end of the driver 6 is fixed to the connecting shaft 2, so that the operation of the driver 6 drives the connecting shaft 2 to rotate, and the driver 6 can specifically be a valve electric actuator;

[0033] A valve seat sealing ring 15 is fixed inside the valve body 5, and an extrusion slope is provided on the inner side of the top of the valve seat sealing ring 15. A valve plate 4 is provided inside the valve body 5 and on the top of the valve seat sealing ring 15, so that the material can fall inside the valve body 5 by the separation of the valve plate 4 and the valve seat sealing ring 15. A connecting channel 16 is fixed on one side of the valve body 5 and on the top of the valve seat sealing ring 15. An emptying port 17 is provided inside the valve body 5 and the connecting channel 16, so that the valve body 5 and the connecting channel 16 can be connected through the emptying port 17, and the bottom end of the emptying port 17 is located at the same horizontal plane as the top of the valve plate 4. At this time, the sealing ring 14 is installed on the top of the valve seat sealing ring 15, just making the top of the sealing ring 14 and the bottom of the emptying port 17 have the same height, so that the oil on the top of the valve plate 4 inside the valve body 5 can be completely drained to reduce losses;

[0034] A first sealing plate 12 is fixed to the outside of the valve plate 4, and a second sealing plate 13 is bolted to the bottom of the first sealing plate 12. A sealing ring 14 is fixed between the outsides of the first sealing plate 12 and the second sealing plate 13. The material of the sealing ring 14 is wear-resistant rubber, so that the position of the sealing ring 14 can be fixed by the first sealing plate 12 and the second sealing plate 13, and the bottom of the sealing ring 14 is located on the outside of the second sealing plate 13, so that the sealing ring 14 can contact with the extrusion slope of the top of the valve seat sealing ring 15, thereby providing a better sealing effect through the sealing ring 14, so that the first sealing plate 12 and the second sealing plate 13 can be fixed. When the plate 12 and the second sealing plate 13 contact the extrusion bevel on the valve seat sealing ring 15, hard sealing is achieved through line contact, and the sealing effect is achieved again through the cooperation of the sealing ring 14. At the same time, the contact between the second sealing plate 13 and the extrusion bevel on the valve seat sealing ring 15 prevents the sealing ring 14 from breaking when the sealing ring 14 is squeezed, thereby increasing the service life of the sealing ring 14. At the same time, when the first sealing plate 12, the second sealing plate 13 and the sealing ring 14 contact the extrusion bevel on the valve seat sealing ring 15 to achieve sealing, the residue on the extrusion bevel on the valve seat sealing ring 15 can be scraped clean by extrusion;

[0035] A positioning mechanism for limiting is installed on the top of the valve plate 4, and the positioning mechanism includes a supporting crank arm 10 and a limiting block 11. The top of the valve plate 4 is rotatably connected to the supporting crank arm 10, and the end of the supporting crank arm 10 away from the valve plate 4 is rotatably connected to the limiting block 11. The limiting block 11 is fixed to the valve body 5, so that the lifting and lowering of the valve plate 4 can be limited and adjusted by the rotating connection between the limiting block 11 and the supporting crank arm 10, and between the supporting crank arm 10 and the valve plate 4, and the limiting block 11 is located at the top of the internal exhaust port 17 of the valve body 5, so that the valve plate 4 can be rotated by the length of the supporting crank arm 10 after it is separated from the valve seat sealing ring 15;

[0036] A connecting rod mechanism is installed inside the valve body 5 and at the bottom of the valve plate 4, and the connecting rod mechanism includes a power crank arm 7, a positioning seat 8 and a pin shaft 9. A power crank arm 7 is fixed to the outside of the connecting shaft 2, and one end of the power crank arm 7 is rotatably connected to the positioning seat 8. The top of the positioning seat 8 is fixed to the valve plate 4, so that the rotation of the connecting shaft 2 drives the valve plate 4 to separate from the valve seat sealing ring 15 through the cooperation of the power crank arm 7 and the positioning seat 8. The bottom end of the positioning seat 8 is internally rotatably connected to the pin shaft 9, and the power crank arm 7 and the positioning seat 8 are rotatably connected through the pin shaft 9, so that the power crank arm 7 and the positioning seat 8 cannot be separated. A through groove is opened inside one end of the power crank arm 7 and on the outside of the pin shaft 9, and the diameter of the through groove is larger than the diameter of the pin shaft 9, so that the power crank arm 7 can eccentrically drive the positioning seat 8 to rotate and adjust.

[0037] The use process of the eccentric flap discharge valve provided by the utility model is as follows: when in use, when the valve plate 4 needs to be opened, the connecting shaft 2 is driven to rotate by the operation of the driver 6, and the rotation of the connecting shaft 2 drives the power crank arm 7 to rotate synchronously, so that the rotation of the power crank arm 7 drives the positioning seat 8 to rotate through the pin shaft 9, and the positioning seat 8 is fixed to the valve plate 4, so that the rotation of the positioning seat 8 drives the valve plate 4 to rise and fall, and the lifting of the valve plate 4 drives the first sealing pressure plate 12, the second sealing pressure plate 13 and The sealing ring 14 is raised and lowered so that the sealing ring 14 can be separated from the valve seat sealing ring 15. At the same time, through the fixation of the limit block 11 and the valve body 5, the rotational connection of the support crank arm 10 and the limit block 11, and the fixation of the support crank arm 10 and the valve plate 4, the lifting of the valve plate 4 is assisted by the support crank arm 10 and the limit block 11. After the valve plate 4 is completely located on the top of the valve seat sealing ring 15, the power crank arm 7 continues to drive the valve plate 4 to rise, allowing the valve plate 4 to flip 90 degrees inside the valve body 5, so that it can be fully opened.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An eccentric flap discharge valve, characterized in that: The valve body (5) comprises a valve body (5), wherein the interior of the valve body (5) is rotatably connected to a connecting shaft (2), packings (3) are fixed inside both ends of the valve body (5) and located on the outside of the connecting shaft (2), a bearing (1) is fixed to one end of the valve body (5), the outside of one end of the connecting shaft (2) is connected to the bearing (1), a driver (6) is fixed to the other end of the valve body (5), and the output end of the driver (6) is fixed to the connecting shaft (2), a valve seat sealing ring (15) is fixed inside the valve body (5), and a valve plate (4) is provided inside the valve body (5) and located on the top of the valve seat sealing ring (15); A positioning mechanism for limiting position is installed on the top of the valve plate (4), and the positioning mechanism comprises a supporting crank arm (10) and a limiting block (11). The top of the valve plate (4) is rotatably connected to the supporting crank arm (10), and one end of the supporting crank arm (10) away from the valve plate (4) is rotatably connected to the limiting block (11), and the limiting block (11) is fixed to the valve body (5).

2. The eccentric flap discharge valve according to claim 1, characterized in that: An extrusion slope is provided on the inner side of the top end of the valve seat sealing ring (15).

3. The eccentric flap discharge valve according to claim 1, characterized in that: A connecting channel (16) is fixed on one side of the valve body (5) and located on the top of the valve seat sealing ring (15), and an exhaust port (17) is provided inside the valve body (5) and the connecting channel (16).

4. The eccentric flap discharge valve according to claim 3, characterized in that: The bottom end of the drain port (17) and the top of the valve plate (4) are located at the same horizontal plane.

5. The eccentric flap discharge valve according to claim 1, characterized in that: A first sealing pressure plate (12) is fixed to the outer side of the valve plate (4), a second sealing pressure plate (13) is bolted to the bottom of the first sealing pressure plate (12), and a sealing ring (14) is fixed between the outer sides of the first sealing pressure plate (12) and the second sealing pressure plate (13).

6. The eccentric flap discharge valve according to claim 1, characterized in that: The limit block (11) is located at the top end of the exhaust port (17) inside the valve body (5).

7. The eccentric flap discharge valve according to claim 1, characterized in that: A connecting rod mechanism is installed inside the valve body (5) and at the bottom of the valve plate (4), and the connecting rod mechanism includes a power crank arm (7), a positioning seat (8) and a pin shaft (9). The power crank arm (7) is fixed to the outside of the connecting shaft (2), one end of the power crank arm (7) is rotatably connected to the positioning seat (8), the top of the positioning seat (8) is fixed to the valve plate (4), and the bottom of the positioning seat (8) is rotatably connected to the pin shaft (9), and the power crank arm (7) and the positioning seat (8) are rotatably connected via the pin shaft (9).

8. The eccentric flap discharge valve according to claim 7, characterized in that: A through groove is provided inside one end of the power crank arm (7) and outside the pin shaft (9), and the diameter of the through groove is greater than the diameter of the pin shaft (9).

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