CN210739403U

CN210739403U - Better butterfly valve of seal

Info

Publication number: CN210739403U
Application number: CN201921284046.5U
Authority: CN
Inventors: 顾华东
Original assignee: Qidong Xinyu Metallurgical Equipment Co ltd
Current assignee: Qidong Xinyu Metallurgical Equipment Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-12
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to a valve production application technical field just discloses a better butterfly valve of seal, including main frame, the outside of driven shaft is through stationary blade fixedly connected with sealed dish, the top fixedly connected with third sealing washer of main frame. The bottom driving shaft is driven to rotate in the first sealing ring through the rotating hand wheel, so that the supporting gear meshed with the driving gear rotates around the fixed block fixed on the inner side, the driven shaft at the bottom of the fixed block rotates on the inner side of the fixed wheel, and the first sealing ring and the second sealing ring are movably connected to the outer side of the driving shaft during rotation, so that the purpose of good sealing performance is achieved. Through the rotation of driven shaft, because sealed dish passes through stationary blade fixed connection with the driven shaft, when sealed dish rotates to sealed dish outside and main frame inner wall and pastes completely, reaches the closed purpose of butterfly valve, when continuing to rotate, the sealed dish outside and main frame inner wall are no longer laminated, reach the purpose that the butterfly valve opened.

Description

Better butterfly valve of seal

Technical Field

The utility model relates to a valve production and application technical field specifically is a better butterfly valve of seal.

Background

The butterfly valve is also called as flap valve, is a valve with simple structure in the fields of common use, family life, industrial production and the like, is mainly used for opening and closing liquid, gas and oil product transportation pipelines, and drives the rotation of an inner shaft of the valve through rotating a hand wheel so as to rotate a sealing disc in the valve to achieve the opening or closing effect. The traditional butterfly valve has poor sealing performance, and transmission media can be leaked during rotation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a better butterfly valve of seal possesses the better advantage of seal, has solved the not good enough problem of seal.

(II) technical scheme

For realizing the better purpose of above-mentioned seal, the utility model provides a following technical scheme: a butterfly valve with better tightness comprises a main frame, wherein the bottom of the main frame is fixedly connected with a fourth sealing ring, the bottom of the fourth sealing ring is fixedly connected with a base, the inner side of the fourth sealing ring is movably connected with a driven shaft, the outer side of the driven shaft is fixedly connected with a sealing disc through a fixing plate, the top of the main frame is fixedly connected with a third sealing ring, the top of the main frame is fixedly connected with a supporting rod, the top end of the supporting rod is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected with a fixing wheel, the bottom of the fixing plate is fixedly connected with a second sealing ring, the top end of the driven shaft is fixedly connected with a fixing block, the outer side of the fixing block is movably connected with a supporting gear, the top of the supporting gear is movably connected with a driving gear, the top of, the top end of the driving shaft is movably connected with a screw, the screw is movably connected with a hand wheel through a through hole, and the outer side of the main frame is fixedly connected with a connecting flange.

Preferably, the height of the driving shaft is greater than that of the first sealing ring, so that the top end of the driving shaft is connected with the hand wheel.

Preferably, the diameter of the inner wall of the main frame is equal to that of the sealing disc, so that when the valve is closed, the sealing disc is completely attached to the inside of the main frame, and a sealing effect is achieved.

Preferably, the diameter of the driven shaft is smaller than the inner diameters of the second sealing ring and the third sealing ring, so that the driven shaft rotates inside the second sealing ring and the third sealing ring.

Preferably, the diameter of the driven shaft is smaller than the width of the fixing plate, so that the driven shaft rotates inside the fixing plate

Preferably, the diameters of the two support gears are equal, so that the driving gear and the fixed gear are kept parallel.

Preferably, the two support rods are equal in height, so that the driven shaft is perpendicular to the base.

(III) advantageous effects

Compared with the prior art, the utility model provides a better butterfly valve of seal possesses following beneficial effect:

1. this better butterfly valve of leakproofness drives the rotation of bottom driving shaft in first sealing washer through rotatory hand wheel, further makes the driving gear of driving shaft bottom rotate to make the supporting gear who centers on the fixed block rotation of inboard with driving gear meshing, thereby make the driven shaft of fixed block bottom rotate in the inboard of tight pulley, and because first sealing washer of outside swing joint, the second sealing washer of driving shaft during the rotation, make and reach the better purpose of leakproofness.

2. This butterfly valve that leakproofness is better, rotation through the driven shaft, because sealed dish passes through stationary blade fixed connection with the driven shaft, make the rotation that drives sealed dish, when sealed dish rotates to sealed dish outside and main frame inner wall and pastes completely, reach the closed purpose of butterfly valve, when continuing to rotate, sealed dish outside and main frame inner wall are no longer laminated, thereby reach the purpose that the butterfly valve opened, and because the outside swing joint of driven shaft has third sealing washer, fourth sealing washer, thereby reach sealed purpose.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the structure of the utility model.

In the figure: 1-main frame, 2-third sealing ring, 3-support rod, 4-second sealing ring, 5-fixing plate, 6-driving shaft, 7-screw, 8-hand wheel, 9-through hole, 10-first sealing ring, 11-driving gear, 12-fixing block, 13-supporting gear, 14-fixing wheel, 15-driven shaft, 16-sealing plate, 17-fixing plate, 18-base, 19-fourth sealing ring and 20-connecting flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a butterfly valve with better sealing performance includes a main frame 1, a fourth sealing ring 19 is fixedly connected to the bottom of the main frame 1, a base 18 is fixedly connected to the bottom end of the fourth sealing ring 19, a driven shaft 15 is movably connected to the inner side of the fourth sealing ring 19, the diameter of the driven shaft 15 is smaller than the inner diameters of the second sealing ring 4 and the third sealing ring 2, so that the driven shaft 15 rotates inside the second sealing ring 4 and the third sealing ring 2, the diameter of the driven shaft 15 is smaller than the width of a fixing plate 5, so that the driven shaft 15 rotates inside the fixing plate 5, a sealing disc 16 is fixedly connected to the outer side of the driven shaft 15 through a fixing plate 17, the diameter of the inner wall of the main frame 1 is equal to the diameter of the sealing disc 16, so that when the valve is closed, the sealing disc 16 completely fits inside the main frame 1, and a sealing effect is, the top of the main frame 1 is fixedly connected with support rods 3, the heights of the two support rods 3 are equal, so that a driven shaft 15 is perpendicular to a base 18, the top end of each support rod 3 is fixedly connected with a fixing plate 5, the top of each fixing plate 5 is fixedly connected with a fixed wheel 14, the bottom of each fixing plate 5 is fixedly connected with a second sealing ring 4, the top end of each driven shaft 15 is fixedly connected with a fixed block 12, the outer side of each fixed block 12 is movably connected with a support gear 13, the diameters of the two support gears 13 are equal, so that the driving gear 11 is parallel to the fixed wheel 14, the top of each support gear 13 is movably connected with a driving gear 11, the top of each driving gear 11 is fixedly connected with a driving shaft 6, the height of each driving shaft 6 is larger than that of a first sealing ring 10, so that the top end of each driving shaft, the screw 7 is movably connected with a hand wheel 8 through a through hole 9, and the outer side of the main frame 1 is fixedly connected with a connecting flange 20.

The working principle is that the hand wheel 8 is rotated by hand, the rotation of the hand wheel 8 can drive the driving shaft 6 to rotate in the first sealing ring 10, the driving shaft 6 drives the driving gear 11 fixedly connected with the bottom end of the driving shaft 6 to rotate, and further drives the two supporting gears 13 meshed with the bottom of the driving gear 11 to do circular motion around the fixed block 12, and drives the driven shaft 15 fixedly connected with the bottom of the fixed block 12 to rotate, as the sealing disc 16 in the main frame 1 is fixedly connected with the driven shaft 15 through the fixing piece 17, the sealing disc 16 is driven to rotate when the driven shaft 15 rotates, when the sealing disc 16 rotates to be completely attached to the inner wall of the main frame 1, the purpose of sealing a butterfly valve is achieved, when the rotation is continued, the sealing disc 16 is not attached to the inner.

To sum up, the butterfly valve with better tightness drives the rotation of the bottom driving shaft 6 in the first sealing ring 10 through the rotating hand wheel 8, further enables the driving gear 11 at the bottom of the driving shaft 6 to rotate, so that the supporting gear 13 meshed with the driving gear 11 rotates around the fixed block 12 fixed on the inner side, further enables the driven shaft 15 at the bottom of the fixed block 12 to rotate on the inner side of the fixed wheel 14, and enables the purpose of better tightness to be achieved due to the fact that the outer side of the driving shaft 6 is movably connected with the first sealing ring 10 and the second sealing ring 4 during rotation. Through the rotation of driven shaft 15, because sealed dish 16 passes through stationary blade 17 fixed connection with driven shaft 15, make the rotation that drives sealed dish 16, when sealed dish 16 rotates to sealed 16 outside and the complete laminating of main frame 1 inner wall, reach the closed purpose of butterfly valve, when continuing to rotate, sealed 16 outside and the laminating of main frame 1 inner wall are no longer laminated, thereby reach the purpose that the butterfly valve was opened, and because the outside swing joint of driven shaft 15 has third sealing washer 2, fourth sealing washer 19, thereby reach sealed purpose.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a better butterfly valve of leakproofness, includes main frame (1), its characterized in that: the bottom fixedly connected with fourth sealing washer (19) of owner frame (1), the bottom fixedly connected with base (18) of fourth sealing washer (19), the inboard swing joint of fourth sealing washer (19) has driven shaft (15), stationary blade (17) fixedly connected with sealed dish (16) are passed through in the outside of driven shaft (15), the top fixedly connected with third sealing washer (2) of owner frame (1), there is fixedly connected with bracing piece (3) at the top of owner frame (1), the top fixedly connected with fixed plate (5) of bracing piece (3), the top fixedly connected with tight pulley (14) of fixed plate (5), the bottom fixedly connected with second sealing washer (4) of fixed plate (5), the top fixedly connected with fixed block (12) of driven shaft (15), the outside swing joint of fixed block (12) has supporting gear (13), the top swing joint of supporting gear (13) has driving gear (11), the top fixedly connected with driving shaft (6) of driving gear (11), the outside swing joint of driving shaft (6) has first sealing washer (10), the top swing joint of driving shaft (6) has screw (7), there is hand wheel (8) screw (7) through-hole (9) swing joint, the outside fixedly connected with flange (20) of main frame (1).

2. The butterfly valve with better air tightness according to claim 1, characterized in that: the height of the driving shaft (6) is greater than that of the first sealing ring (10).

3. The butterfly valve with better air tightness according to claim 1, characterized in that: the diameter of the inner wall of the main frame (1) is equal to that of the sealing disc (16).

4. The butterfly valve with better air tightness according to claim 1, characterized in that: the diameter of the driven shaft (15) is smaller than the inner diameters of the second sealing ring (4) and the third sealing ring (2).

5. The butterfly valve with better air tightness according to claim 1, characterized in that: the diameter of the driven shaft (15) is smaller than the width of the fixing plate (5).

6. The butterfly valve with better air tightness according to claim 1, characterized in that: the diameters of the two support gears (13) are equal.

7. The butterfly valve with better air tightness according to claim 1, characterized in that: the heights of the two support rods (3) are equal.