CN110594424A - Novel butterfly valve sealing structure and novel butterfly valve - Google Patents
Novel butterfly valve sealing structure and novel butterfly valve Download PDFInfo
- Publication number
- CN110594424A CN110594424A CN201910869535.5A CN201910869535A CN110594424A CN 110594424 A CN110594424 A CN 110594424A CN 201910869535 A CN201910869535 A CN 201910869535A CN 110594424 A CN110594424 A CN 110594424A
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- sealing
- valve
- tube
- butterfly valve
- novel butterfly
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a novel butterfly valve sealing structure and a novel butterfly valve, and particularly relates to the field of butterfly valves, wherein the butterfly valve comprises a valve body, a control pipe is fixedly arranged at the top of the valve body, and an adjusting box is fixedly arranged at the top end of the control pipe; the inside chamber way that is equipped with of valve body, the chamber way runs through and is equipped with the valve rod, the fixed valve clack that is equipped with on the valve rod, the fixed cover in valve clack edge is equipped with first sealing washer. According to the invention, the independent sealing ring plate is arranged on one side of the valve flap, the sealing rubber ring is arranged on the sealing ring plate, the sealing rubber tube is arranged in the cavity channel, the threaded rod is driven to move in the threaded tube by rotating the hand wheel, the piston moves in the piston tube, the change of air pressure is generated, gas can be pressed into the sealing rubber tube through the inflation tube, the sealing rubber tube is expanded and extruded into the sealing groove on the sealing rubber ring, and the sealing rubber tube and the threaded rod are mutually attached and sealed, so that the sealing performance between the valve flap and the cavity channel can be greatly improved, and the sealing performance of the valve is improved.
Description
Technical Field
The invention relates to the field of butterfly valves, in particular to a novel butterfly valve sealing structure and a novel butterfly valve.
Background
At present, a butterfly valve is also called a flap valve, is a regulating valve with a simple structure, and can be used for switching control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a valve clack or a butterfly plate of a closing member is a disk. The butterfly valve has the advantages of simple structure, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and rapidness, and simultaneously has good flow regulation function and sealing closing characteristic, thereby being one of the fastest valve varieties developed in the last ten years. Butterfly valves are widely used. The variety and number of uses thereof are still continuously expanding and are developing toward high temperature, high pressure, large caliber, high sealing property, long life, excellent regulation property, and one-valve multi-function. The reliability and other performance indexes of the composite material reach higher levels.
How to achieve a leak-proof seal is an important criterion from the point of view of the valve. Particularly when the butterfly valve is applied to a flow pipe, the sealing performance is more emphasized.
The existing butterfly valve is mostly in a simple structure that a plurality of rubber seal rings and fillers are matched with the valve clack, the sealing of the valve body is completed, and in the long-time use process, the sealing performance is poor due to the aging of parts, so that the normal use of the butterfly valve is influenced.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a novel butterfly valve sealing structure and a novel butterfly valve, wherein a separate sealing ring plate is arranged on one side of a valve flap, a sealing rubber ring is arranged on the sealing ring plate, a sealing rubber tube is arranged inside a cavity channel, and a hand wheel is rotated to drive a threaded rod to move in a threaded tube, so that a piston moves in a piston tube, and a change in air pressure is generated, so that air can be pressed into the sealing rubber tube through an inflation tube, the sealing rubber tube expands, and is pressed into a sealing groove on the sealing rubber ring and is attached to and sealed with each other, thereby greatly improving the sealing performance between the valve flap and the cavity channel, and improving the sealing performance of the valve.
In order to achieve the purpose, the invention provides the following technical scheme: a novel butterfly valve sealing structure and a novel butterfly valve comprise a valve body, wherein a control tube is fixedly arranged at the top of the valve body, and an adjusting box is fixedly arranged at the top end of the control tube;
the valve comprises a valve body, a valve rod, a valve clack, a sealing rubber ring, a sealing rubber tube, a connecting plate, an inflation tube, a graphite filler and a mechanical seal, wherein a cavity channel is arranged in the valve body, the cavity channel is provided with the valve rod in a penetrating manner, the valve clack is fixedly arranged on the valve rod, a first sealing ring is fixedly sleeved at the edge of the valve clack, the side wall of the valve clack is provided with the sealing ring plate, the outer wall of the sealing ring plate is fixedly embedded with the sealing rubber ring, the sealing rubber ring is provided with a sealing groove, the sealing rubber tube is arranged in the sealing groove, a second sealing ring is fixedly embedded in the inner wall of the cavity channel, the;
the control pipe comprises a main pipe and a piston pipe, the main pipe and the valve body are integrally arranged, the main pipe is fixedly connected with the piston pipe, an upper shaft sleeve is fixedly arranged inside the main pipe, a piston is arranged in the inner cavity of the piston pipe, and a threaded rod is fixedly connected to the top of the piston;
the adjusting box inner chamber is equipped with first gear and screwed pipe, the threaded rod runs through the screwed pipe and the top that the adjusting box extended to the adjusting box, first gear engagement is connected with the second gear, second gear fixedly connected with rotation axis, the outside cover of rotation axis is equipped with the sleeve pipe.
In a preferred embodiment, the number of the graphite packing and the mechanical seal are two, and the graphite packing and the mechanical seal are symmetrically arranged at the top and the bottom of the cavity through the cavity, and the two graphite packing and the mechanical seal are arranged in line with the bearing.
In a preferred embodiment, the top end of the valve rod extends to the interior of the regulating box through the second sealing ring, the graphite packing, the mechanical seal, the upper shaft sleeve and the main pipe in sequence.
In a preferred embodiment, the first gear is fixedly arranged at the top end of the valve rod, and the bottom end of the valve rod sequentially penetrates through the second sealing ring graphite packing and the mechanical seal to be inserted into the bearing.
In a preferred embodiment, the sleeve is fixedly inserted on the outer wall of the adjusting box, and the rotating shaft is in transmission connection with the valve rod through a second gear and a first gear.
In a preferred embodiment, the threaded tube is fixedly arranged inside the adjusting box, and the piston is movably connected with the inner wall of the piston tube through the threaded rod and the threaded tube.
In a preferred embodiment, the top end of the inflation tube penetrates through the second sealing ring and the valve body in sequence to be communicated with the interior of the piston tube, the sealing rubber tube is fixedly arranged on the connecting plate, the bottom end of the inflation tube is communicated with the interior of the sealing rubber tube, and the inner wall of the sealing groove is arc-shaped.
In a preferred embodiment, the outer wall of the sealing rubber pipe is attached to the inner wall of the sealing groove, and the outer wall of the first sealing ring is attached to the inner wall of the second sealing ring.
In a preferred embodiment, a first hand wheel is fixedly arranged at the top end of the threaded rod, a second hand wheel is arranged at the end part of the rotating shaft, and a mounting flange is fixedly connected with the valve body.
The invention has the technical effects and advantages that:
1. the valve flap is provided with the independent sealing ring plate, the sealing rubber ring is arranged on the sealing ring plate, the sealing rubber tube is arranged inside the cavity channel, the threaded rod is driven to move in the threaded tube by rotating the hand wheel, the piston moves in the piston tube, air pressure change is generated, air can be pressed into the sealing rubber tube through the inflation tube, the sealing rubber tube expands and is pressed into the sealing groove on the sealing rubber ring and is mutually attached and sealed, the sealing performance between the valve flap and the cavity channel can be greatly improved, and the sealing performance of the valve is improved;
2. the valve body is adjusted by arranging the independent adjusting box, arranging the threaded pipe and the sleeve inside the adjusting box, arranging the threaded rod and the rotating shaft, sleeving the threaded pipe outside the threaded rod, sleeving the sleeve outside the rotating shaft, and driving the threaded rod and the rotating shaft to rotate by using the two hand wheels, so that the structure is simple and the operation is convenient;
3. through being responsible for a fixed piston pipe in one side, rotate the hand wheel and make the threaded rod remove the promotion piston in the screwed pipe and remove, utilize the piston to remove the change that produces atmospheric pressure in the piston pipe, impress gas to sealed intraductal, need not to insert outside air pressure adjusting device and can accomplish the regulation to sealed inside gaseous of glue at the in-process of use, improved the practicality.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a detailed structure of a portion a in fig. 1 according to the present invention.
Fig. 3 is a schematic view of the valve flap of the present invention after rotation.
Fig. 4 is a schematic diagram of a detailed structure of part B in fig. 3 according to the present invention.
Fig. 5 is a right-view structural diagram of the present invention.
Fig. 6 is a schematic structural diagram of the valve flap and the sealing ring plate part of the invention.
The reference signs are: the valve comprises a valve body 1, a control pipe 2, an adjusting box 3, a cavity 4, a valve rod 5, a valve clack 6, a first sealing ring 7, a sealing ring plate 8, a sealing rubber ring 9, a sealing groove 10, a sealing rubber pipe 11, a second sealing ring 12, a connecting plate 13, an inflation pipe 14, a graphite filler 15, a mechanical seal 16, a main pipe 17, a piston pipe 18, an upper shaft sleeve 19, a piston 20, a threaded rod 21, a first gear 22, a threaded pipe 23, a second gear 24, a rotating shaft 25, a sleeve 26, a first hand wheel 27, a second hand wheel 28 and a bearing 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The novel butterfly valve sealing structure and the novel butterfly valve shown in the figures 1-5 comprise a valve body 1, wherein a control tube 2 is fixedly arranged at the top of the valve body 1, and an adjusting box 3 is fixedly arranged at the top end of the control tube 2;
a cavity channel 4 is arranged inside the valve body 1, a valve rod 5 penetrates through the cavity channel 4, a valve clack 6 is fixedly arranged on the valve rod 5, a first sealing ring 7 is fixedly sleeved at the edge of the valve clack 6, a sealing ring plate 8 is arranged on the side wall of the valve clack 6, a sealing rubber ring 9 is fixedly embedded on the outer wall of the sealing ring plate 8, a sealing groove 10 is formed in the sealing rubber ring 9, a sealing rubber pipe 11 is arranged in the sealing groove 10, a second sealing ring 12 is fixedly embedded on the inner wall of the cavity channel 4, a connecting plate 13 is arranged on the inner wall of the second sealing ring 12, an inflation pipe 14 penetrates through the connecting plate 13, graphite packing 15 and mechanical seal 16 are arranged at the top and the bottom of the second sealing ring 12, and a bearing 29 is embedded at the bottom;
the control tube 2 comprises a main tube 17 and a piston tube 18, the main tube 17 and the valve body 1 are integrally arranged, the main tube 17 is fixedly connected with the piston tube 18, an upper shaft sleeve 19 is fixedly arranged inside the main tube 17, a piston 20 is arranged in an inner cavity of the piston tube 18, and a threaded rod 21 is fixedly connected to the top of the piston 20;
the inner cavity of the adjusting box 3 is provided with a first gear 22 and a threaded pipe 23, the threaded rod 21 penetrates through the threaded pipe 23 and the adjusting box 3 and extends to the top of the adjusting box 3, the first gear 22 is meshed with a second gear 24, the second gear 24 is fixedly connected with a rotating shaft 25, and a sleeve 26 is sleeved outside the rotating shaft 25.
The implementation mode is specifically as follows: when the valve is required to be opened, a user firstly rotates the first hand wheel 27 to enable the threaded rod 21 to rotate in the threaded pipe 23 so as to move upwards, the piston 20 is driven to move upwards in the piston pipe 18, air pressure in the piston pipe 18 is changed, air in the sealing rubber pipe 11 is pumped out by the inflation pipe 14, the sealing rubber pipe 11 is separated from the inner wall of the sealing groove 10 and is contracted and attached to the connecting plate 13, then the user rotates the second hand wheel 28 to enable the rotating shaft 25 to rotate in the sleeve 26, the second gear 24 at the end of the rotating shaft 25 is meshed with the first gear 22 to drive the valve rod 5 to rotate in the valve body 1, the valve clack 6 is rotated to be parallel to the cavity channel 4, and therefore the cavity channel 4 is unobstructed, and liquid media can flow from the cavity channel 4;
as shown in fig. 1-6, the number of the graphite packing 15 and the mechanical seal 16 is two and symmetrically arranged at the top and the bottom of the cavity 4 through the cavity 4, the two graphite packing 15 and the mechanical seal 16 are arranged in line with the bearing 29,
the top end of the valve rod 5 sequentially penetrates through the second sealing ring 12, the graphite packing 15, the mechanical seal 16, the upper shaft sleeve 19 and the main pipe 17 to extend into the adjusting box 3, the first gear 22 is fixedly arranged at the top end of the valve rod 5, and the bottom end of the valve rod 5 sequentially penetrates through the second sealing ring 12, the graphite packing 15 and the mechanical seal 16 to be inserted into the bearing 29;
the sleeve 26 is fixedly inserted on the outer wall of the adjusting box 3, the rotating shaft 25 is in transmission connection with the valve rod 5 through a second gear 24 and a first gear 22, the threaded pipe 23 is fixedly arranged inside the adjusting box 3, and the piston 20 is movably connected with the inner wall of the piston pipe 18 through a threaded rod 21 and the threaded pipe 23;
the top end of the inflation tube 14 penetrates through the second sealing ring 12 and the valve body 1 in sequence to be communicated with the interior of the piston tube 18, the sealing rubber tube 11 is fixedly arranged on the connecting plate 13, the bottom end of the inflation tube 14 is communicated with the interior of the sealing rubber tube 11, the inner wall of the sealing groove 10 is arc-shaped, the outer wall of the sealing rubber tube 11 is attached to the inner wall of the sealing groove 10, the outer wall of the first sealing ring 7 is attached to the inner wall of the second sealing ring 12, the piston tube 18 is fixed on one side of the main tube 17, the hand wheel is rotated to enable the threaded rod 21 to move in the threaded tube 23 to push the piston 20 to move, the air pressure is changed by the movement of the piston 20 in the piston tube 18, the air is pressed into the sealing rubber tube 11, and the adjustment of the;
the fixed first hand wheel 27 that is equipped with in threaded rod 21 top, rotation axis 25 tip is equipped with second hand wheel 28, 1 fixedly connected with mounting flange of valve body utilizes mounting flange to accomplish the installation of valve body 1.
The specific implementation mode is as follows: when a user needs to hang a wall valve, the user firstly rotates the second hand wheel 28 to enable the rotating shaft 25 to rotate in the sleeve 26, the second gear 24 at the end of the rotating shaft 25 is meshed with the first gear 22 at the top end of the valve rod 5 to drive the valve rod 5 to rotate in the valve body 1, so that the direction of the valve clack 6 is changed to be perpendicular to the direction of the cavity channel 4, at the moment, the first sealing ring 7 outside the valve clack 6 is attached to the second sealing ring 12 in the cavity channel 4 to finish primary sealing on the valve clack 6, then the user rotates the first hand wheel 27 to enable the threaded rod 21 to rotate and move downwards in the threaded pipe 23, the piston 20 at the bottom end of the threaded rod 21 moves downwards in the piston pipe 18 to enable the air pressure in the piston pipe 18 to rise, air in the piston pipe 18 is extruded into the sealing rubber pipe 11 through the inflation pipe 14 to enable the sealing rubber pipe 11 to expand, and the outer wall of the expanded sealing rubber pipe 11, and the valve clack 6 and the inner wall of the cavity channel 4 are mutually attached and sealed, so that the connection sealing performance of the valve clack 6 and the inner wall of the cavity channel 4 is further improved, and the sealing performance of the valve is improved.
The working principle of the invention is as follows:
referring to the attached drawings 1-6 of the specification, a second hand wheel 28 and a threaded rod 21 are utilized to drive a piston 20 to move in a piston tube 18, so that air pressure change is generated, a sealing rubber tube 11 on one side of a valve clack 6 is changed differently according to the closing condition of the valve, and the connection sealing performance of the valve clack 6 and the inner wall of a cavity channel 4 is further improved;
2-6, the graphite packing 15 is matched with the mechanical seal 16, the threaded pipe 23 and the sleeve 26 are arranged inside the adjusting box 3, the threaded rod 21 and the rotating shaft 25 are arranged, and the adjustment is carried out by using a hand wheel, so that the structure is simple and the operation is convenient.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A novel butterfly valve sealing structure and a novel butterfly valve are characterized by comprising a valve body (1), wherein a control tube (2) is fixedly arranged at the top of the valve body (1), and an adjusting box (3) is fixedly arranged at the top end of the control tube (2);
the valve body (1) is internally provided with a cavity channel (4), the cavity channel (4) is provided with a valve rod (5) in a penetrating manner, the valve rod (5) is fixedly provided with a valve clack (6), the edge of the valve clack (6) is fixedly provided with a first sealing ring (7), the side wall of the valve clack (6) is provided with a sealing ring plate (8), the outer wall of the sealing ring plate (8) is fixedly embedded with a sealing rubber ring (9), the sealing rubber ring (9) is provided with a sealing groove (10), a sealing rubber tube (11) is arranged in the sealing groove (10), the inner wall of the cavity channel (4) is fixedly embedded with a second sealing ring (12), the inner wall of the second sealing ring (12) is provided with a connecting plate (13), the connecting plate (13) is provided with an inflation tube (14) in a penetrating manner, and the top and the bottom of the second sealing ring (12), a bearing (29) is embedded at the bottom of the valve body (1);
the control tube (2) comprises a main tube (17) and a piston tube (18), the main tube (17) and the valve body (1) are integrally arranged, the main tube (17) is fixedly connected with the piston tube (18), an upper shaft sleeve (19) is fixedly arranged inside the main tube (17), a piston (20) is arranged in an inner cavity of the piston tube (18), and the top of the piston (20) is fixedly connected with a threaded rod (21);
adjusting box (3) inner chamber is equipped with first gear (22) and screwed pipe (23), threaded rod (21) run through screwed pipe (23) and adjusting box (3) and extend to the top of adjusting box (3), first gear (22) meshing is connected with second gear (24), second gear (24) fixedly connected with rotation axis (25), rotation axis (25) outside cover is equipped with sleeve pipe (26).
2. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: the number of the graphite packing (15) and the number of the mechanical seal (16) are respectively set to be two, the graphite packing and the mechanical seal (16) are symmetrically arranged at the top and the bottom of the cavity (4) through the cavity (4), and the two graphite packing (15) and the mechanical seal (16) are arranged in a collinear way with the bearing (29).
3. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 2, wherein: the top end of the valve rod (5) penetrates through the second sealing ring (12), the graphite packing (15), the mechanical seal (16), the upper shaft sleeve (19) and the main pipe (17) in sequence and extends into the adjusting box (3).
4. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 2, wherein: the first gear (22) is fixedly arranged at the top end of the valve rod (5), and the bottom end of the valve rod (5) sequentially penetrates through the second sealing ring (12), the graphite packing (15) and the mechanical seal (16) to be inserted into the bearing (29).
5. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: the sleeve (26) is fixedly inserted on the outer wall of the adjusting box (3), and the rotating shaft (25) is in transmission connection with the valve rod (5) through a second gear (24) and a first gear (22).
6. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: the threaded pipe (23) is fixedly arranged in the adjusting box (3), and the piston (20) is movably connected with the inner wall of the piston pipe (18) through a threaded rod (21) and the threaded pipe (23).
7. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: inflation tube (14) top runs through second sealing washer (12) and valve body (1) and the inside intercommunication of piston pipe (18) in proper order, sealing rubber tube (11) fixed set up on connecting plate (13), inflation tube (14) bottom and sealing rubber tube (11) inside intercommunication, the inner wall of seal groove (10) sets up to the arc.
8. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: the outer wall of the sealing rubber pipe (11) is attached to the inner wall of the sealing groove (10), and the outer wall of the first sealing ring (7) is attached to the inner wall of the second sealing ring (12).
9. The novel butterfly valve sealing structure and the novel butterfly valve according to claim 1, wherein: threaded rod (21) top is fixed and is equipped with first hand wheel (27), rotation axis (25) tip is equipped with second hand wheel (28), valve body (1) fixedly connected with mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869535.5A CN110594424A (en) | 2019-09-12 | 2019-09-12 | Novel butterfly valve sealing structure and novel butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869535.5A CN110594424A (en) | 2019-09-12 | 2019-09-12 | Novel butterfly valve sealing structure and novel butterfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN110594424A true CN110594424A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910869535.5A Pending CN110594424A (en) | 2019-09-12 | 2019-09-12 | Novel butterfly valve sealing structure and novel butterfly valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111237499A (en) * | 2020-03-03 | 2020-06-05 | 杨皓然 | Intelligent ceramic valve |
| CN112032325A (en) * | 2020-09-24 | 2020-12-04 | 李祥庆 | Bidirectional sealing butterfly valve |
| CN114183545A (en) * | 2021-12-14 | 2022-03-15 | 深圳市爱特阀门有限公司 | Electric opposite clamping type butterfly valve |
| CN114704654A (en) * | 2022-04-12 | 2022-07-05 | 杨兰 | Pre-decompression butterfly valve |
| CN115388184A (en) * | 2022-10-28 | 2022-11-25 | 自贡新比隆阀门有限公司 | High-performance double-plate ball valve |
| CN117780949A (en) * | 2024-02-23 | 2024-03-29 | 靖江市三菱暖通机械制造有限公司 | Separated valve body structure |
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| US20090032759A1 (en) * | 2007-08-02 | 2009-02-05 | Hans-Jurgen Fehringer | Shut-off organ with anchored ceiling element |
| KR20180011941A (en) * | 2016-07-26 | 2018-02-05 | 이정수 | butterfly valve |
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| CN209262357U (en) * | 2018-10-19 | 2019-08-16 | 江苏邦力金属制品有限公司 | A kind of efficient sealed butterfly valve |
| CN209325059U (en) * | 2019-01-25 | 2019-08-30 | 莱州伟隆阀门有限公司 | A kind of disk butterfly valve of good airproof performance |
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| CN111237499B (en) * | 2020-03-03 | 2021-12-17 | 浙江凯维智能自控***有限公司 | Intelligent ceramic valve |
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| CN115388184A (en) * | 2022-10-28 | 2022-11-25 | 自贡新比隆阀门有限公司 | High-performance double-plate ball valve |
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