Airtight butterfly valve of guide mechanism

Abstract

The utility model discloses an airtight butterfly valve of a guide mechanism, which relates to the field of valves and comprises a valve body, a sealing ring is fixedly arranged at the upper end of the inner side surface of the valve body, and the bottom surface of the sealing ring is lapped with the upper surface of a valve plate. By arranging the sealing ring, the first fixing plate, the first fixing shaft, the second fixing shaft, the first connecting rod and the second connecting rod to be connected with the valve plate, when the valve plate is opened, a user can rotate the worm to drive the second fixing shaft to rotate anticlockwise through the worm gear; when the second fixing shaft rotates anticlockwise, the valve plate is driven to rotate anticlockwise through the second connecting rod, the first fixing shaft and the first fixing plate, and at the moment, the first connecting rod rotates around the third fixing shaft and the fourth fixing shaft, so that the valve plate rotates by 90 degrees to be in a vertical state, and the valve body is opened; and through the cooperation of the structure, the valve plate cannot make contact with the valve body to be abraded when rotating, and therefore the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a butterfly valve, in particular to an airtight butterfly valve with a guide mechanism. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays a role of cutting off and throttling in pipelines. In the prior art, for butterfly valves with large diameters, due to the heavy weight of the valve plate, the wear between the valve plate and the bottom wall of the valve cavity will increase when the valve is working due to the action on the valve body. At the same time, the pressure fluctuation of the medium inside the valve body will cause the valve plate to vibrate during the switching process, seriously affecting the sealing and service life of the valve. Utility Model Content

[0003] The utility model aims to provide an airtight butterfly valve with a guide mechanism to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide mechanism airtight butterfly valve, comprising a valve body, a sealing ring is fixedly arranged on the upper end of the inner side surface of the valve body, the bottom surface of the sealing ring overlaps the upper surface of the valve plate, the bottom surface of the sealing ring is provided with an installation groove 1, the inner side surface of the installation groove 1 is fixedly connected to the outer side surface of the magnetic ring 1, and the bottom end of the magnetic ring 1 is adsorbed and connected to the magnetic ring 2.

[0005] As a preferred technical solution of the utility model, the outer side surface of the second magnetic ring is fixedly connected to the inner side surface of the second mounting groove, and the second mounting groove is provided on the upper surface of the valve plate.

[0006] As a preferred technical solution of the utility model, the bottom surface of the valve plate is fixedly connected to the upper surfaces of the two fixed plates one at the same time, and the middle parts of the two fixed plates one are rotatably connected to the two ends of the fixed shaft one through sealed bearings.

[0007] As a preferred technical solution of the utility model, the middle part of the fixed shaft one is fixedly connected to the upper end of the connecting rod two, and the bottom ends of the two fixed plates one are rotatably connected to the two ends of the fixed shaft four through sealed bearings.

[0008] As an optimal technical solution of the utility model, the fixed shaft four is fixedly connected to the upper ends of the two connecting rods one at the same time, the bottom ends of the two connecting rods one are fixedly connected to the fixed shaft three, and the bottom end of the connecting rod two is fixedly connected to the fixed shaft two.

[0009] As a preferred technical solution of the utility model, the fixed shaft 2 and the fixed shaft 3 are both rotatably connected to the two fixed plates 2 through sealed bearings, and the right ends of the two fixed plates 2 are fixedly connected to the inner side surfaces of the valve body.

[0010] As a preferred technical solution of the utility model, the second fixed shaft is also rotatably connected to the valve body via a sealed bearing, and the front end of the second fixed shaft is fixedly connected to the worm gear.

[0011] As a preferred technical solution of the utility model, the worm gear sleeve is arranged in a mounting box, and the rear side surface of the mounting box is fixedly connected to the outer side surface of the valve body.

[0012] As an optimal technical solution of the utility model, the worm wheel is meshedly connected with the worm, the optical axes at both ends of the worm are rotatably connected to the left and right sides of the installation box through rolling bearings, and a wheel disc is fixedly provided on the right end of the worm.

[0013] As a preferred technical solution of the utility model, the upper and lower ends of the outer side surface of the valve body are fixedly connected to the inner side surfaces of two mounting rings respectively, and each mounting ring is provided with a plurality of mounting holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is connected to the valve plate by arranging a sealing ring, a fixed plate 1, a fixed shaft 1, a fixed shaft 2, a connecting rod 1 and a connecting rod 2. When opening the valve plate, the user can rotate the worm and use the worm gear to drive the fixed shaft 2 to rotate counterclockwise. When the fixed shaft 2 rotates counterclockwise, the valve plate is driven to rotate counterclockwise through the connecting rod 2, the fixed shaft 1 and the fixed plate 1. At this time, the connecting rod 1 rotates around the fixed shaft 3 and the fixed shaft 4, so that the valve plate rotates 90 degrees to a vertical state to open the valve body. Then, the cooperation of the above structure ensures that the valve plate will not contact the valve body and cause wear when rotating, thereby effectively extending the service life of the device.

[0016] 2. The utility model connects the valve plate and the sealing ring by setting magnetic ring 1 and magnetic ring 2. When the valve plate rotates to a horizontal state and contacts the sealing ring to seal the valve body, magnetic ring 1 and magnetic ring 2 are adsorbed and connected, so that the valve plate is further limited and fixed by the adsorption of magnetic ring 1 and magnetic ring 2 to improve its stability, thereby preventing the fluid from driving the valve plate to vibrate and affecting its sealing effect, and further increasing the functionality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 This is a bottom view of the structure of the sealing ring of the utility model;

[0020] Figure 4 This is a rear structural schematic diagram of the installation box of the utility model;

[0021] Figure 5 This is a schematic diagram of the valve plate structure of the utility model.

[0022] In the figure: 1. valve body; 2. mounting ring; 3. mounting hole; 4. mounting box; 5. sealing ring; 6. valve plate; 7. fixing plate 1; 8. connecting rod 1; 9. connecting rod 2; 10. fixing plate 2; 11. mounting groove 1; 12. magnetic ring 1; 13. fixing shaft 1; 14. magnetic ring 2; 15. fixing shaft 2; 16. fixing shaft 3; 17. fixing shaft 4; 18. worm gear; 19. worm; 20. mounting groove 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution for an airtight butterfly valve with a guide mechanism: it includes a valve body 1, a sealing ring 5 is fixedly arranged on the upper end of the inner side surface of the valve body 1, the bottom surface of the sealing ring 5 overlaps the upper surface of the valve plate 6, and a mounting groove 11 is opened on the bottom surface of the sealing ring 5. The inner side surface of the mounting groove 11 is fixedly connected to the outer side surface of a magnetic ring 12, and the bottom end of the magnetic ring 12 is adsorbed and connected to a magnetic ring 2 14.

[0025] The outer side surface of the magnetic ring 14 is fixedly connected to the inner side surface of the mounting groove 20. The mounting groove 20 is opened on the upper surface of the valve plate 6. The valve plate 6 is connected to the sealing ring 5 by arranging the magnetic ring 12 and the magnetic ring 14. When the valve plate 6 rotates to a horizontal state and contacts with the sealing ring 5 to seal the valve body 1, the magnetic ring 12 and the magnetic ring 14 are adsorbed and connected at this time, so that the valve plate 6 is further limited and fixed by the adsorption of the magnetic ring 12 and the magnetic ring 14 to improve its stability, thereby preventing the fluid from driving the valve plate 6 to vibrate and affecting its sealing effect, thereby further increasing the functionality of the device.

[0026] The bottom surface of the valve plate 6 is fixedly connected to the upper surfaces of the two fixed plates 7 at the same time, and the middle parts of the two fixed plates 7 are rotatably connected to the two ends of the fixed shaft 13 respectively through sealed bearings.

[0027] The middle part of the fixed shaft 13 is fixedly connected to the upper end of the connecting rod 2 9, and the bottom ends of the two fixed plates 1 7 are rotatably connected to the two ends of the fixed shaft 4 17 through sealed bearings.

[0028] The fixed shaft four 17 is fixedly connected to the upper ends of the two connecting rods one 8 at the same time, the bottom ends of the two connecting rods one 8 are fixedly connected to the fixed shaft three 16, and the bottom end of the connecting rod two 9 is fixedly connected to the fixed shaft two 15.

[0029] The fixed shaft 2 15 and the fixed shaft 3 16 are both rotatably connected to the two fixed plates 2 10 through sealed bearings. The right ends of the two fixed plates 2 10 are fixedly connected to the inner side surfaces of the valve body 1. When opening the valve plate 6, the user can rotate the worm 19 and use the worm gear 18 to drive the fixed shaft 2 15 to rotate counterclockwise. When the fixed shaft 2 15 rotates counterclockwise, the valve plate 6 is driven to rotate counterclockwise through the connecting rod 2 9, the fixed shaft 1 13 and the fixed plate 1 7. At this time, the connecting rod 1 8 rotates around the fixed shaft 3 16 and the fixed shaft 4 17, so that the valve plate 6 rotates ninety degrees to a vertical state so that the valve body 1 is opened. Furthermore, the cooperation of the above-mentioned structure ensures that the valve plate 6 will not contact with the valve body 1 and cause wear when rotating, thereby effectively extending the service life of the device.

[0030] The second fixed shaft 15 is also rotationally connected to the valve body 1 through a sealed bearing, and the front end of the second fixed shaft 15 is fixedly connected to the worm gear 18 .

[0031] The worm gear 18 is sleeved in the installation box 4 , and the rear side surface of the installation box 4 is fixedly connected to the outer side surface of the valve body 1 .

[0032] The worm wheel 18 is meshedly connected with the worm 19, and the optical axes at both ends of the worm 19 are rotatably connected with the left and right sides of the installation box 4 respectively through rolling bearings. A wheel disc is fixedly arranged at the right end of the worm 19. By arranging a worm wheel 18 at the front end of the fixed shaft 15, and arranging the worm 19 to be meshedly connected with the worm wheel 18, the valve plate 6 can be driven by rotating the worm wheel 18 when opening and closing the control valve plate 6, and the unidirectionality and self-locking property of the transmission of the worm 19 and the worm wheel 18 can be used to limit and fix the position of the valve plate 6, thereby preventing the valve plate 6 from rotating due to the medium in the pipeline and gravity and affecting its sealing effect.

[0033] The upper and lower ends of the outer side surface of the valve body 1 are fixedly connected to the inner side surfaces of the two mounting rings 2 respectively, and each mounting ring 2 is provided with a plurality of mounting holes 3.

[0034] The operating steps of the utility model are:

[0035] When using the device, the valve body 1 can be connected to the pipeline by using the mounting ring 2 and the mounting hole 3. When opening the valve plate 6, the user can rotate the worm 19 and use the worm gear 18 to drive the fixed shaft 2 15 to rotate counterclockwise. When the fixed shaft 2 15 rotates counterclockwise, the valve plate 6 is driven to rotate counterclockwise through the connecting rod 2 9, the fixed shaft 1 13 and the fixed plate 1 7. At this time, the connecting rod 1 8 rotates around the fixed shaft 3 16 and the fixed shaft 4 17, so that the valve plate 6 rotates ninety degrees to a vertical state to open the valve body 1. When closing the valve body 1, the worm 19 is rotated in the opposite direction to make the valve plate 6 rotate ninety degrees clockwise to a horizontal state and contact with the sealing ring 5 to seal the valve body 1. At this time, the magnetic ring 12 is adsorbed and connected with the magnetic ring 2 14, and the valve plate 6 is further limited and fixed by the adsorption of the magnetic ring 12 and the magnetic ring 2 14.

[0036] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide mechanism airtight butterfly valve, comprising a valve body (1), characterized in that: A sealing ring (5) is fixedly provided on the upper end of the inner side surface of the valve body (1), the bottom surface of the sealing ring (5) overlaps with the upper surface of the valve plate (6), the bottom surface of the sealing ring (5) is provided with a mounting groove (11), the inner side surface of the mounting groove (11) is fixedly connected to the outer side surface of the magnetic ring (12), and the bottom end of the magnetic ring (12) is adsorbed and connected to the magnetic ring (14).

2. The airtight butterfly valve with a guide mechanism according to claim 1, characterized in that: The outer side surface of the second magnetic ring (14) is fixedly connected to the inner side surface of the second mounting groove (20), and the second mounting groove (20) is provided on the upper surface of the valve plate (6).

3. The airtight butterfly valve with a guide mechanism according to claim 2, characterized in that: The bottom surface of the valve plate (6) is fixedly connected to the upper surfaces of the two fixed plates (7) at the same time, and the middle parts of the two fixed plates (7) are rotatably connected to the two ends of the fixed shaft (13) respectively through sealed bearings.

4. The airtight butterfly valve with a guide mechanism according to claim 3, characterized in that: The middle part of the fixed shaft one (13) is fixedly connected to the upper end of the connecting rod two (9), and the bottom ends of the two fixed plates one (7) are rotatably connected to the two ends of the fixed shaft four (17) respectively through sealed bearings.

5. The airtight butterfly valve with a guide mechanism according to claim 4, characterized in that: The fixed shaft four (17) is fixedly connected to the upper ends of the two connecting rods one (8) at the same time, the bottom ends of the two connecting rods one (8) are fixedly connected to the fixed shaft three (16), and the bottom end of the connecting rod two (9) is fixedly connected to the fixed shaft two (15).

6. The airtight butterfly valve with a guide mechanism according to claim 5, characterized in that: The fixed shaft 2 (15) and the fixed shaft 3 (16) are both rotatably connected to the two fixed plates 2 (10) via sealed bearings, and the right ends of the two fixed plates 2 (10) are both fixedly connected to the inner side surfaces of the valve body (1).

7. The airtight butterfly valve with a guide mechanism according to claim 6, characterized in that: The second fixed shaft (15) is also rotationally connected to the valve body (1) via a sealing bearing, and the front end of the second fixed shaft (15) is fixedly connected to the worm gear (18).

8. The airtight butterfly valve with a guide mechanism according to claim 7, characterized in that: The worm wheel (18) is sleeved in the installation box (4), and the rear side surface of the installation box (4) is fixedly connected to the outer side surface of the valve body (1).

9. The airtight butterfly valve with a guiding mechanism according to claim 8, characterized in that: The worm wheel (18) is meshedly connected with the worm (19), and the optical axes at both ends of the worm (19) are rotatably connected to the left and right sides of the installation box (4) through rolling bearings, and a wheel disc is fixedly arranged at the right end of the worm (19).

10. The airtight butterfly valve with a guide mechanism according to claim 9, characterized in that: The upper and lower ends of the outer side surface of the valve body (1) are respectively fixedly connected to the inner side surfaces of two mounting rings (2), and each mounting ring (2) is provided with a plurality of mounting holes (3).

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