CN215861775U - High-efficiency sealed groove butterfly valve - Google Patents
High-efficiency sealed groove butterfly valve Download PDFInfo
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- CN215861775U CN215861775U CN202120565465.7U CN202120565465U CN215861775U CN 215861775 U CN215861775 U CN 215861775U CN 202120565465 U CN202120565465 U CN 202120565465U CN 215861775 U CN215861775 U CN 215861775U
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Abstract
The utility model relates to the field of valves, in particular to a groove butterfly valve with efficient sealing. The utility model aims to solve the technical problem of providing a high-efficiency sealed groove butterfly valve which can efficiently seal fluid to prevent fluid leakage, reduce the friction between a sealing element and a valve body when the valve is opened and closed and prolong the service life. A high-efficiency sealed groove butterfly valve comprises a valve body, a support frame, a turbine rotator, a hand wheel, an upper shaft sleeve, a lower shaft sleeve, a valve rod, a pin, a butterfly plate, a sealing ring, a pressing ring, a sealing mechanism, a packing gland, a bottom cover, a sealing gasket, a sealing ring and a gasket. The utility model achieves the effects of efficiently sealing the fluid to prevent the fluid from leaking, reducing the friction between the sealing element and the valve body when opening and closing and prolonging the service life.
Description
Technical Field
The utility model relates to the field of valves, in particular to a groove butterfly valve with efficient sealing.
Background
The groove butterfly valve is driven by a worm wheel and a worm, the cam rotates along with the groove butterfly valve to press down or release a contact on the signal device according to a preset position, and correspondingly outputs an on-off electric signal to display the opening and closing state of the butterfly valve. The groove butterfly valve is divided into a handle groove butterfly valve and a turbine groove butterfly valve. The groove butterfly valve is designed by adopting the advanced technology abroad and the company for multiple improvements. The valve body is formed by welding thick-wall seamless pipes, the valve plate is made of nodular cast iron, the valve plate is reliable in quality, firmer and more durable than cast iron, more attractive in appearance and more excellent in price, and the valve plate has the rapidness required by connection with a pipe fitting. Can be widely applied to pipelines of water supply and drainage, fire fighting, petroleum, chemical engineering, medicine, steel and the like for cutting off or adjusting.
Traditional groove butterfly valve sealed effect is not very good, frequent rotation in the course of the work, sealing member and valve body on the dish board produce the friction, the medium that flows in addition also can produce certain erosion to the sealing member, therefore, traditional butterfly valve sealing performance is more and more poor along with life and frequency of use increase, can appear leaking the phenomenon after long-time the use, the butterfly plate can receive great rivers impact force at the during operation simultaneously, the skew of small range takes place easily and then leads to leaking consequently urgently need to develop one kind and can prevent fluid leakage to the fluid high efficiency seal, reduce the friction of sealing member and valve body when opening and closing, promote life's high-efficient sealed groove butterfly valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the sealing performance of the traditional butterfly valve is increasingly poor along with the increase of service life and service frequency, the leakage phenomenon can occur after the traditional butterfly valve is used for a long time, and meanwhile, the butterfly plate can be subjected to larger water flow impact force during working, and the leakage is easily caused by slight deviation.
The utility model is achieved by the following specific technical means:
a high-efficiency sealed groove butterfly valve comprises a valve body, a support frame, a turbine rotator, a hand wheel, an upper shaft sleeve, a lower shaft sleeve, a valve rod, a pin, a butterfly plate, a sealing ring, a pressing ring, a sealing mechanism, a packing gland, a bottom cover and a sealing gasket; the two ends of the valve body are provided with grooves connected with the pipeline, the end surface of the valve body is provided with a water through hole, the outer surface of the valve body is provided with a boss, and the boss is provided with a shaft hole communicated with the water through hole; the support frame is positioned at the upper end of the valve body and is fixedly connected with a boss arranged at the upper end of the valve body through a bolt; the turbine rotator is positioned above the support frame and is fixedly connected to the support frame through a bolt; the hand wheel is fixedly connected with an input rotating shaft of the turbine rotator through a bolt; the upper shaft sleeve is arranged in a shaft hole arranged on a boss at the upper end of the valve body; the lower shaft sleeve is arranged in a shaft hole arranged on a boss at the lower end of the valve body; the valve rod penetrates through a water through hole in the valve body and is arranged in shaft holes arranged on bosses at the upper end and the lower end of the valve body, the valve rod is rotatably connected with the valve body through an upper shaft sleeve and a lower shaft sleeve, and the upper end of the valve rod extends into the turbine rotator and is connected with an output shaft of the turbine rotator; the valve rod is provided with a pin hole, the butterfly plate is provided with a mounting hole, and the butterfly plate is positioned in a through hole arranged on the valve body, is mounted on the valve rod through the mounting hole and is fixedly connected with the valve rod through a pin; the sealing ring is arranged on one side of the butterfly plate, the pressing ring is positioned on one side of the sealing ring, and the pressing ring is fixed on the butterfly plate through a bolt and is clamped and fixed between the butterfly plate and the pressing ring; the sealing mechanism is positioned on one side of the pressing ring and is fixedly arranged in a through hole arranged in the valve body through a bolt; the filler is positioned in the shaft holes at the upper end and the lower end of the valve body; the packing gland is positioned above the valve body and is fixedly connected with the valve body through a bolt, and the lower end of the packing gland extends into the shaft hole to extrude the packing arranged at the upper end of the packing gland; the bottom cover is positioned at the lower end of the valve body and is fixedly connected with the valve body through a bolt, and the upper end of the bottom cover extends into the axial hole of the valve body to extrude the filler arranged at the lower end; a sealing gasket is arranged between the valve body and the bottom cover.
Furthermore, the groove butterfly valve with efficient sealing further comprises an O-shaped sealing ring and a gasket; the valve rod is provided with a groove; the two O-shaped sealing rings are positioned in the shaft holes at the upper end and the lower end of the valve body, close to one side of the water through hole, positioned between the valve rod and the valve body and arranged in a groove formed in the valve rod; the two gaskets are arranged between the shaft sleeves and the filler in the shaft holes at the upper end and the lower end of the valve body and are arranged in the groove formed in the valve rod.
Further, the sealing mechanism comprises a movable sealing ring, a fixed ring, a spring and an end face sealing ring; the movable sealing ring is positioned in the water through hole of the valve body and can be slidably arranged on one side of the pressing ring; the fixed ring is positioned on one side of the movable sealing ring and is fixedly connected with the valve body through a bolt; the spring is arranged between the movable sealing ring and the fixed sealing ring; the end face sealing ring is arranged on the step arranged on the water through hole and is positioned between the step of the water through hole of the valve body and the movable sealing ring.
Furthermore, the contact surface of the pressing ring and the movable sealing ring is a sealing surface, and the sealing surface is an arc surface.
Furthermore, the springs are arranged in a plurality and are uniformly distributed between the movable sealing ring and the fixed sealing ring.
Furthermore, the surface of the pin is plated with an anti-corrosion zinc-plating coating.
Compared with the prior art, the utility model has the following beneficial effects:
the butterfly valve has the advantages that the fluid is efficiently sealed to prevent the fluid from leaking, the friction between a sealing element and the valve body when the butterfly valve is opened and closed is reduced, and the service life is prolonged; in the process of opening the butterfly plate, the butterfly plate rotates around the central line of the valve rod, the pressing ring rotates along with the butterfly plate, the pressing ring can generate an extrusion friction force for the movable sealing ring during rotation, at the moment, the movable sealing ring can slide outwards to reduce the friction between the sealing surface of the movable sealing ring and the sealing surface of the pressing ring, and therefore the phenomenon that the sealing effect is weakened due to long-time abrasion is prevented, the friction resistance is small when the butterfly plate is opened and closed, the sealing effect is good, and the service life is long.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front view of the present invention.
FIG. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic cross-sectional structure of the present invention.
Fig. 5 is a schematic structural diagram of the sealing mechanism of the present invention.
The labels in the figures are: 1-a valve body, 2-a support frame, 3-a turbine rotator, 4-a hand wheel, 5-an upper shaft sleeve, 6-a lower shaft sleeve, 7-a valve rod, 8-a pin, 9-a butterfly plate, 10-a sealing ring, 11-a pressing ring, 12-a sealing mechanism, 13-a packing, 14-a packing gland, 15-a bottom cover, 16-a sealing gasket, 17-O-shaped sealing ring, 18 gasket-, 121-a movable sealing ring, 122-a fixed ring, 123-a spring and 124-an end face sealing ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
examples
A high-efficiency sealed groove butterfly valve is shown in figures 1-5 and comprises a valve body 1, a support frame 2, a turbine rotator 3, a hand wheel 4, an upper shaft sleeve 5, a lower shaft sleeve 6, a valve rod 7, a pin 8, a butterfly plate 9, a sealing ring 10, a pressing ring 11, a sealing mechanism 12, a packing 13, a packing gland 14, a bottom cover 15 and a sealing gasket 16; two ends of the valve body 1 are provided with grooves connected with a pipeline, the end surface is provided with a water through hole, the outer surface is provided with a boss, and the boss is provided with a shaft hole communicated with the water through hole; the support frame 2 is positioned at the upper end of the valve body 1 and is fixedly connected with a boss arranged at the upper end of the valve body 1 through a bolt; the turbine rotator 3 is positioned above the support frame 2 and is fixedly connected to the support frame 2 through bolts; the hand wheel 4 is fixedly connected with an input rotating shaft of the turbine rotator 3 through a bolt; the upper shaft sleeve 5 is arranged in a shaft hole arranged on a boss at the upper end of the valve body 1; the lower shaft sleeve 6 is arranged in a shaft hole arranged on a boss at the lower end of the valve body 1; the valve rod 7 passes through a water through hole on the valve body 1 and is arranged in shaft holes arranged on bosses at the upper end and the lower end of the valve body 1, is rotatably connected with the valve body 1 through an upper shaft sleeve 5 and a lower shaft sleeve 6, and the upper end of the valve rod extends into the turbine rotator 3 and is connected with an output shaft of the turbine rotator 3; the valve rod 7 is provided with a pin 8 hole, the butterfly plate 9 is provided with a mounting hole, the butterfly plate 9 is positioned in a water through hole arranged on the valve body 1, is mounted on the valve rod 7 through the mounting hole and is fixedly connected with the valve rod 7 through the pin 8; the sealing ring 10 is arranged on one side of the butterfly plate 9, the pressing ring 11 is positioned on one side of the sealing ring 10, the pressing ring 11 is fixed on the butterfly plate 9 through bolts, and the sealing ring 10 is clamped and fixed between the butterfly plate 9 and the pressing ring 11; the sealing mechanism 12 is positioned at one side of the pressing ring 11 and is fixedly arranged in a water through hole arranged in the valve body 1 through a bolt; the packing 13 is positioned in the shaft holes at the upper end and the lower end of the valve body 1; the packing gland 14 is positioned above the valve body 1, is fixedly connected with the valve body 1 through a bolt, and the lower end of the packing gland extends into the shaft hole to extrude the packing 13 arranged at the upper end of the packing gland; the bottom cover 15 is positioned at the lower end of the valve body 1 and is fixedly connected with the valve body 1 through a bolt, and the upper end of the bottom cover 15 extends into the shaft hole of the valve body 1 to extrude the packing 13 arranged at the lower end; a sealing gasket 16 is also arranged between the valve body 1 and the bottom cover 15.
The groove butterfly valve with efficient sealing further comprises an O-shaped sealing ring 17 and a gasket 18; the valve rod 7 is provided with a groove; two O-shaped sealing rings 17 are arranged, are positioned in the shaft holes at the upper end and the lower end of the valve body 1 and close to one side of the water through hole, are positioned between the valve rod 7 and the valve body 1, and are arranged in a groove arranged on the valve rod 7; and two gaskets 18 are also arranged and are positioned between the shaft holes at the upper end and the lower end of the valve body 1 and the packing 13 and are arranged in the groove arranged on the valve rod 7.
The sealing mechanism 12 comprises a movable sealing ring 121, a fixed ring 122, a spring 123 and an end face sealing ring 124; the movable sealing ring 121 is positioned in the water through hole of the valve body 1 and can be slidably arranged on one side of the pressing ring 11; the fixed ring 122 is positioned on one side of the movable sealing ring 121 and is fixedly connected with the valve body 1 through a bolt; the spring 123 is arranged between the movable sealing ring 121 and the fixed sealing ring 10; the end face seal ring 124 is provided on a step provided in the water passage hole and is located between the step of the water passage hole of the valve body 1 and the movable seal ring 121.
The contact surface of the pressing ring 11 and the movable sealing ring 121 is a sealing surface, and the sealing surface is an arc surface.
The springs 123 are uniformly distributed between the movable sealing ring 121 and the fixed sealing ring 10.
The surface of the pin 8 is plated with an anti-corrosion zinc-plating coating.
The working principle is as follows: the butterfly valve is connected with a pipeline through grooves formed in two ends of the valve body 1, the hand wheel 4 is rotated to enable the turbine rotator 3 to drive the valve rod 7 connected with the output shaft of the turbine rotator to rotate, the butterfly plate 9 is controlled to be opened and closed through rotation of the control valve rod 7, circulation and disconnection of control fluid are achieved, an O-shaped sealing ring 17 is arranged in a shaft hole of the valve body 1, multiple sealing is achieved through a gasket 18 and a packing 13, leakage of the fluid from the shaft hole of the valve body 1 is prevented, meanwhile, the packing 13 is extruded by the packing gland 14 and a bottom cover 15, the packing 13 is deformed, sealing effect is improved, meanwhile, a sealing gasket 16 is further arranged between the bottom cover 15 below the valve body 1 and the valve body 1, and the sealing performance of the shaft hole of the valve body 1 and the matching of the valve rod 7 is further improved.
When the butterfly valve is in a closed state, the sealing surface of the movable sealing ring 121 and the sealing surface of the pressing ring 11 are matched with each other to seal water flow, forward thrust is exerted on the movable sealing ring 121 by the lateral spring 123, the sealing surface of the movable sealing ring 121 is tightly attached to the sealing surface of the pressing ring 11 to achieve a good sealing effect, meanwhile, a sealing ring 10 is further arranged between the pressing ring 11 and the butterfly plate 9, sealing is achieved through extrusion matching of the sealing ring 10 and a water through hole of the valve body 1, double sealing is achieved between the pressing ring 11 and the sealing ring 10, and efficient sealing for fluid is achieved to prevent fluid leakage.
In the process of opening the butterfly plate 9, the butterfly plate 9 rotates around the central line of the valve rod 7, the pressing ring 11 rotates along with the butterfly plate 9, the pressing ring 11 generates an extrusion friction force to the movable sealing ring 121 when rotating, at the moment, the movable sealing ring 121 slides outwards to reduce the friction between the sealing surface of the movable sealing ring 121 and the sealing surface of the pressing ring 11, so that the sealing effect is weakened due to long-time abrasion, the leakage phenomenon is avoided, when the sealing surface is used for a long time and certain abrasion is generated, the spring 123 can enable the sealing surface of the movable sealing ring 121 to be still tightly attached to the sealing surface of the pressing ring 11, the friction resistance is small when the butterfly plate 9 is opened and closed, the sealing effect is good, and the service life is long.
The groove butterfly valve with high-efficiency sealing further comprises an O-shaped sealing ring 17 and a gasket 18; the valve rod 7 is provided with a groove; two O-shaped sealing rings 17 are arranged, are positioned in the shaft holes at the upper end and the lower end of the valve body 1 and close to one side of the water through hole, are positioned between the valve rod 7 and the valve body 1, and are arranged in a groove arranged on the valve rod 7; two gaskets 18 are also arranged and are positioned between the shaft holes of the upper end and the lower end of the valve body 1 and the shaft sleeves and the packing 13 and are arranged in the groove arranged on the valve rod 7; the sealing effect of the butterfly valve is increased through multiple sealing between the shaft hole of the valve body 1 and the valve rod 7, and leakage at the shaft hole is prevented.
Wherein, the contact surface of the pressing ring 11 and the movable sealing ring 121 is a sealing surface which is an arc surface; the sealing effect of the sealing surface is increased, so that the sealing surface has certain self-sealing performance, and the sealing is firmer.
A plurality of springs 123 are uniformly distributed between the movable sealing ring 121 and the fixed sealing ring 10; can be effective even give the thrust of activity sealing washer 121, make activity sealing washer 121 and clamping ring 11 laminating inseparabler, reach the effect of reinforcing leakproofness.
Wherein, 8 surfaces of pin are plated with anticorrosion zinc-plating coating and prevent that long-time use back pin 8 from rustting, thereby it influences butterfly valve's sealed effect to lead to the linkage effect variation of valve rod 7 and butterfly plate 9. Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.
Claims (6)
1. A groove butterfly valve with efficient sealing is characterized by comprising a valve body (1), a support frame (2), a turbine rotator (3), a hand wheel (4), an upper shaft sleeve (5), a lower shaft sleeve (6), a valve rod (7), a pin (8), a butterfly plate (9), a sealing ring (10), a pressing ring (11), a sealing mechanism (12), a packing (13), a packing gland (14), a bottom cover (15) and a sealing gasket (16); two ends of the valve body (1) are provided with grooves connected with a pipeline, the end surface is provided with a water through hole, the outer surface is provided with a boss, and the boss is provided with a shaft hole communicated with the water through hole; the support frame (2) is positioned at the upper end of the valve body (1) and is fixedly connected with a boss arranged at the upper end of the valve body (1) through a bolt; the turbine rotator (3) is positioned above the support frame (2) and is fixedly connected to the support frame (2) through bolts; the hand wheel (4) is fixedly connected with an input rotating shaft of the turbine rotator (3) through a bolt; the upper shaft sleeve (5) is arranged in a shaft hole arranged on a boss at the upper end of the valve body (1); the lower shaft sleeve (6) is arranged in a shaft hole arranged on a boss at the lower end of the valve body (1); the valve rod (7) passes through a limber hole on the valve body (1) and is arranged in shaft holes arranged on bosses at the upper end and the lower end of the valve body (1), is rotatably connected with the valve body (1) through an upper shaft sleeve (5) and a lower shaft sleeve (6), and the upper end of the valve rod extends into the turbine rotator (3) and is connected with an output shaft of the turbine rotator (3); a pin (8) hole is formed in the valve rod (7), a mounting hole is formed in the butterfly plate (9), the butterfly plate (9) is located in a water through hole formed in the valve body (1), is mounted on the valve rod (7) through the mounting hole, and is fixedly connected with the valve rod (7) through the pin (8); the sealing ring (10) is arranged on one side of the butterfly plate (9), the pressing ring (11) is positioned on one side of the sealing ring (10), the pressing ring (11) is fixed on the butterfly plate (9) through bolts, and the sealing ring (10) is clamped and fixed between the butterfly plate (9) and the pressing ring (11); the sealing mechanism (12) is positioned on one side of the pressing ring (11) and is fixedly arranged in a water through hole formed in the valve body (1) through a bolt; the filler (13) is positioned in the shaft holes at the upper end and the lower end of the valve body (1); the packing gland (14) is positioned above the valve body (1), is fixedly connected with the valve body (1) through a bolt, and the lower end of the packing gland extends into the shaft hole to extrude the packing (13) arranged at the upper end of the packing gland; the bottom cover (15) is positioned at the lower end of the valve body (1) and is fixedly connected with the valve body (1) through a bolt, and the upper end of the bottom cover (15) extends into the shaft hole of the valve body (1) to extrude the filler (13) arranged at the lower end; a sealing gasket (16) is also arranged between the valve body (1) and the bottom cover (15).
2. An efficient sealing groove butterfly valve according to claim 1, further comprising an O-ring (17) and a gasket (18); the valve rod (7) is provided with a groove; the two O-shaped sealing rings (17) are positioned in shaft holes at the upper end and the lower end of the valve body (1), are close to one side of the water through hole, are positioned between the valve rod (7) and the valve body (1), and are arranged in a groove formed in the valve rod (7); the two gaskets (18) are also arranged and are positioned between the shaft sleeves and the packing (13) in the shaft holes at the upper end and the lower end of the valve body (1) and are arranged in the groove arranged on the valve rod (7).
3. A high efficiency sealing groove butterfly valve according to claim 1, wherein the sealing mechanism (12) comprises a movable sealing ring (121), a fixed ring (122), a spring (123) and an end sealing ring (124); the movable sealing ring (121) is positioned in a water through hole of the valve body (1) and can be slidably arranged on one side of the pressing ring (11); the fixed ring (122) is positioned on one side of the movable sealing ring (121) and is fixedly connected with the valve body (1) through a bolt; the spring (123) is arranged between the movable sealing ring (121) and the fixed sealing ring (10); the end face sealing ring (124) is arranged on the step of the water through hole and is positioned between the step of the water through hole of the valve body (1) and the movable sealing ring (121).
4. The groove butterfly valve with high sealing efficiency according to claim 1, wherein the contact surface of the pressing ring (11) and the movable sealing ring (121) is a sealing surface, and the sealing surface is a circular arc surface.
5. A high efficiency sealing groove butterfly valve according to claim 3, characterized in that said spring (123) is provided in plurality, evenly distributed between the movable sealing ring (121) and the fixed sealing ring (10).
6. An efficient sealing groove butterfly valve according to claim 1, characterized in that the surface of the pin (8) is coated with a corrosion-resistant galvanising coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120565465.7U CN215861775U (en) | 2021-03-19 | 2021-03-19 | High-efficiency sealed groove butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120565465.7U CN215861775U (en) | 2021-03-19 | 2021-03-19 | High-efficiency sealed groove butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861775U true CN215861775U (en) | 2022-02-18 |
Family
ID=80318003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120565465.7U Active CN215861775U (en) | 2021-03-19 | 2021-03-19 | High-efficiency sealed groove butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635981A (en) * | 2022-03-14 | 2022-06-17 | 江苏江沅机械有限公司 | Anti-corrosion butterfly valve |
-
2021
- 2021-03-19 CN CN202120565465.7U patent/CN215861775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635981A (en) * | 2022-03-14 | 2022-06-17 | 江苏江沅机械有限公司 | Anti-corrosion butterfly valve |
| CN114635981B (en) * | 2022-03-14 | 2022-12-13 | 江苏江沅机械有限公司 | Anti-corrosion butterfly valve |
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