CN114413003B - Bidirectional multi-bias metal sealing butterfly valve - Google Patents
Bidirectional multi-bias metal sealing butterfly valve Download PDFInfo
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- CN114413003B CN114413003B CN202210245034.1A CN202210245034A CN114413003B CN 114413003 B CN114413003 B CN 114413003B CN 202210245034 A CN202210245034 A CN 202210245034A CN 114413003 B CN114413003 B CN 114413003B
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- control box
- plate
- butterfly valve
- rotating shaft
- valve body
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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
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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
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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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- 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
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to a bidirectional multi-deflection metal sealing butterfly valve, which comprises a valve body, wherein the valve body is in a cylindrical shape and hollow in the inside, a disc plate is rotatably installed on the valve body, the disc plate is in a circular shape, a control box is fixedly installed on the periphery of the valve body, two sides of a rotating shaft are respectively provided with a stabilizing piece, the rotating shaft is connected with a control mechanism installed in the control box, a threaded driving mechanism connected with the control mechanism is also installed in the control box, the two stabilizing pieces are respectively connected with the threaded driving mechanism through a group of elastic telescopic mechanisms, the two stabilizing pieces are respectively abutted with the rotating shaft, a flow indicating mechanism connected with the threaded driving mechanism is also installed on the control box, and finally, as the flow of the butterfly valve is reduced, the extrusion force of the two stabilizing pieces to the rotating shaft is increased, the pressure applied to the disc plate is slowed down, and the service life of the butterfly valve is prolonged.
Description
Technical Field
The invention relates to the field of butterfly valves, in particular to a bidirectional multi-bias metal sealing butterfly valve.
Background
The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.
The butterfly valve is different from the ball valve, when the butterfly valve works, the butterfly plate is used for blocking media such as air, water and the like, so that the butterfly valve bears larger working pressure, and a corresponding buffer structure is not arranged in the existing butterfly valve, so that the accuracy of flow control of the butterfly valve in daily use is poor, and the service life of the butterfly valve cannot reach the ideal standard.
Disclosure of Invention
The invention aims to provide a bidirectional multi-bias metal sealing butterfly valve, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the two-way multi-offset metal sealing butterfly valve comprises a valve body, wherein the valve body is in a cylindrical shape and hollow, a disc plate is rotatably arranged in the valve body, and the disc plate is in a circular shape;
a control box is fixedly arranged on the periphery of the valve body, a rotating shaft of the disc plate extends into the control box, two sides of the rotating shaft are respectively provided with a stabilizing piece, and the rotating shaft is connected with a control mechanism arranged in the control box;
the inside of control box still install with the screw thread actuating mechanism that control mechanism is connected, two steady firmware all is the arcuation setting, and respectively through a set of elastic telescoping mechanism with screw thread actuating mechanism connects, elastic telescoping mechanism stores up elastic potential energy, two steady firmware all with pivot butt, still install flow indication mechanism on the control box, flow indication mechanism with screw thread actuating mechanism connects.
As a further scheme of the invention: the thread driving mechanism comprises a bidirectional screw rod rotatably installed in the control box, a guide rod fixedly installed in the control box and two thread plates arranged on the bidirectional screw rod and the guide rod;
the screw plate is in threaded connection with the bidirectional screw rod, the bidirectional screw rod is in sliding connection with the guide rod, the bidirectional screw rod is connected with the control mechanism, and the stabilizing piece is connected with the screw plate through the elastic telescopic mechanism.
As still further aspects of the invention: the control mechanism comprises a worm rotatably installed in the control box and a worm wheel fixedly installed on the end part of the rotating shaft, the worm wheel is meshed with the worm, a rotating wheel is fixedly installed at one end of the worm and located outside the control box, and the other end of the worm is connected through a first transmission belt and the bidirectional screw rod.
As still further aspects of the invention: the elastic telescopic mechanism comprises a cylinder fixedly mounted on the threaded plate and a telescopic rod slidably arranged in the cylinder through an elastic piece, one end of the telescopic rod positioned outside the cylinder is fixedly connected with the stabilizing piece, and elastic potential energy is reserved in the elastic piece.
As still further aspects of the invention: the elastic piece comprises a spring arranged in the cylinder, one end of the spring is connected with the wall of the cylinder, and the other end of the spring is connected with one end of the telescopic rod, which is far away from the stabilizing piece.
As still further aspects of the invention: the flow indicating mechanism comprises a display disc fixedly arranged on the outer wall of the control box and a pointer rotatably arranged on the control box, scales are arranged on the display disc along the circumference, a gear is rotatably arranged in the control box, a rack plate is fixedly arranged on the rack plate, the gear is meshed with teeth on the rack plate, and the pointer is connected with a rotating shaft of the gear through a second driving belt.
As still further aspects of the invention: two transverse plates are fixedly mounted on the inner wall of the control box, two limiting plates are fixedly mounted on the transverse plates, and the threaded plates are located between the two limiting plates.
As still further aspects of the invention: still fixed mounting has a solid fixed ring in the valve body, gu fixed ring orientation one side of dish board is provided with the expansion ring through a plurality of shell fragments, gu fixed on the expansion ring be provided with the sealing washer of dish board butt, gu fixed a plurality of expansion plates that are provided with along circumference equidistance on the expansion ring, gu fixed a plurality of deflector that are provided with along circumference equidistance on the fixed ring, the expansion plate with the two slip cover of deflector.
Compared with the prior art, the invention has the beneficial effects that: the butterfly valve is novel in design, when the control mechanism moves, the disc plate is driven to rotate, when the flow is smaller, the pressure born by the disc plate is larger, and when the control mechanism moves, the flow of the butterfly valve is gradually reduced, the control mechanism drives the bidirectional screw rod to rotate, so that the guide rod guides the two threaded plates, the two threaded plates are in threaded fit with the bidirectional screw rod to move close to each other, in the process, the elastic potential energy reserved by the elastic telescopic mechanism is gradually increased, so that the extrusion force of the two stabilizing pieces on the rotating shaft is increased, the pressure born by the disc plate is slowed down, and the service life of the butterfly valve is prolonged.
Drawings
FIG. 1 is an isometric view of one embodiment of a bi-directional multi-biased metal seal butterfly valve.
FIG. 2 is a schematic diagram of an embodiment of a bi-directional multi-biased metal seal butterfly valve.
FIG. 3 is a schematic view of another angle of an embodiment of a bi-directional multi-biased metal seal butterfly valve.
FIG. 4 is a schematic view of a two-way multi-bias metal seal butterfly valve in an alternative embodiment.
Fig. 5 is an enlarged view of the structure at a in fig. 4.
FIG. 6 is a schematic diagram of the internal structure of a control box in one embodiment of a bi-directional multi-biased metal seal butterfly valve.
FIG. 7 is an exploded view of the structure of the elastic telescoping mechanism of one embodiment of a bi-directional multi-biased metal seal butterfly valve.
In the figure: 1. a valve body; 2. a dish plate; 3. a control box; 4. a rotating shaft; 5. a worm; 6. a worm wheel; 7. a stabilizing piece; 8. a first belt; 9. a two-way screw rod; 10. a guide rod; 11. a cylinder; 12. a telescopic rod; 13. a spring; 14. a thread plate; 15. a cross plate; 16. a limiting plate; 17. a protective shell; 18. rack plate; 19. a gear; 20. a second belt; 21. a display panel; 22. a pointer; 23. a rotating wheel; 24. a seal ring; 25. a movable ring; 26. a fixing ring; 27. a spring plate; 28. a guide plate; 29. and a telescopic plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, an element in the present disclosure may be referred to as being "fixed" or "disposed" on another element or being directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1-7, in an embodiment of the present invention, a bidirectional multi-bias metal seal butterfly valve includes a valve body 1, where the valve body 1 is cylindrical and hollow, a disc plate 2 is rotatably installed in the valve body 1, and the disc plate 2 is circular. The periphery of the valve body 1 is fixedly provided with a control box 3, a rotating shaft 4 of the disc plate 2 extends into the control box 3, two sides of the rotating shaft 4 are respectively provided with a stabilizing piece 7, and the rotating shaft 4 is connected with a control mechanism arranged in the control box 3.
It should be noted that, a lower shaft member (not shown in the figure) fixed to the disc plate 2 is rotatably mounted on the outer periphery of the valve body 1, and the central axes of the lower shaft member and the rotating shaft 4 are coincident, so as to ensure smoothness of the disc plate 2 during rotation.
Referring to fig. 2 and 5 again, the control mechanism includes a worm 5 rotatably installed in the control box 3 and a worm wheel 6 fixedly installed at an end of the rotating shaft 4, the worm wheel 6 is meshed with the worm 5, a rotating wheel 23 is fixedly installed at one end of the worm 5, the rotating wheel 23 is located outside the control box 3, and the other end of the worm 5 is connected through a first driving belt 8 and the bidirectional screw 9.
It should be noted that, the side portion of the control box 3 is further fixedly provided with a protecting shell 17, and the first driving belt 8 is located in the protecting shell 17, so that the protecting shell 17 plays an effective role in protecting the first driving belt 8, and damage to the first driving belt 8 caused by external adverse factors is prevented, so that normal transmission of the worm 5 and the bidirectional screw rod 9 is affected.
Because the worm wheel 6 and the worm 5 are engaged with each other and have the characteristic of self-locking, the effectiveness of butterfly valve flow control is ensured, and further, when the disc plate 2 is stressed, teeth on the worm wheel 6 are stressed, so that the arrangement of the stabilizing piece 7 and the elastic telescopic mechanism can buffer the stress of the worm wheel 6, and the worm wheel 6 is prevented from deforming to influence the flow control effect of the butterfly valve after long-term use.
The control box 3 is internally provided with a screw thread driving mechanism connected with the control mechanism. Referring again to fig. 5 and 6, the screw driving mechanism includes a bidirectional screw rod 9 rotatably installed in the control box 3, a guide rod 10 fixedly installed in the control box 3, and two screw plates 14 provided on the bidirectional screw rod 9 and the guide rod 10. The screw plate 14 is in threaded connection with the bidirectional screw rod 9 and is in sliding connection with the guide rod 10, the bidirectional screw rod 9 is connected with the control mechanism, and the stabilizing piece 7 is connected with the screw plate 14 through the elastic telescopic mechanism.
In detail, two sections of threads with opposite screwing directions are provided on the bidirectional screw rod 9, and two through holes for the bidirectional screw rod 9 and the guide rod 10 to penetrate are provided on the threaded plate 14, wherein threads engaged with the bidirectional screw rod 9 are provided on the inner wall of the through hole for the bidirectional screw rod 9 to penetrate.
When the control mechanism moves, the disc plate 2 is driven to rotate, the smaller the flow is, the larger the pressure on the disc plate 2 is, and when the control mechanism moves to enable the flow of the butterfly valve to gradually decrease, the control mechanism drives the bidirectional screw rod 9 to rotate, then the guide rod 10 guides the two threaded plates 14, the two threaded plates 14 are in threaded fit with the bidirectional screw rod 9 to move close to each other, in the process, the elastic potential energy reserved by the elastic telescopic mechanism gradually increases, so that the extrusion force of the two stabilizing members 7 on the rotating shaft 4 is increased, the pressure on the disc plate 2 is slowed down, and the service life of the butterfly valve is prolonged.
The two stabilizing pieces 7 are all arc-shaped and are connected with the thread driving mechanism through a group of elastic telescopic mechanisms, the elastic telescopic mechanisms store elastic potential energy, and the two stabilizing pieces 7 are all abutted to the rotating shaft 4.
Referring to fig. 7 again, the elastic telescopic mechanism includes a cylinder 11 fixedly mounted on the threaded plate 14 and a telescopic rod 12 slidably disposed in the cylinder 11 through an elastic member, wherein one end of the telescopic rod 12 located outside the cylinder 11 is fixedly connected with the stabilizing member 7, and the elastic member stores elastic potential energy. The elastic piece comprises a spring 13 arranged in the cylinder 11, one end of the spring 13 is connected with the wall of the cylinder 11, and the other end of the spring is connected with one end of the telescopic rod 12, which is far away from the stabilizing piece 7.
In the process of gradually reducing the flow of the butterfly valve, the worm 5 drives the bidirectional screw rod 9 to rotate through the first transmission belt 8, so that the screw plate 14 moves towards the rotating shaft 4, the cylinder 11 gradually moves towards the stabilizing piece 7 in the process of moving, correspondingly, the length of the telescopic rod 12 exposed outside the cylinder 11 gradually reduces, the spring 13 is gradually compressed, the elastic potential energy stored in the spring is gradually increased, and the force exerted by the stabilizing piece 7 on the rotating shaft 4 is gradually increased, so that the stability of the butterfly plate 2 automatically adjusts along with the change of the flow, on one hand, the flow control precision of the butterfly valve is improved, and on the other hand, the butterfly plate 2 and the worm wheel 6 play a role in protecting, and the service life of the butterfly valve is prolonged.
The control box 3 is also provided with a flow indicating mechanism which is connected with the screw thread driving mechanism.
Referring to fig. 2 and 6 again, the flow indicating mechanism includes a display disc 21 fixedly disposed on the outer wall of the control box 3, and a pointer 22 rotatably mounted on the control box 3, wherein scales are circumferentially disposed on the display disc 21. The control box 3 is rotatably provided with a gear 19, the thread plate 14 is fixedly provided with a rack plate 18, the gear 19 is meshed with teeth on the rack plate 18, and the pointer 22 is connected with the rotating shaft of the gear 19 through a second transmission belt 20.
When the thread plate 14 moves, the rack plate 18 moves along with the movement, and the gear 19 rotates, so that the rotating shaft of the gear 19 drives the pointer 22 to rotate through the second driving belt 20 and points to scales arranged on the display disc 21 fan, thus, the moving amount of the thread plate 14 is transferred to the flow of the valve, the flow is displayed through the pointing of the pointer 22, the user can observe the flow more intuitively, and the flow control of the butterfly valve is facilitated.
Referring to fig. 5 and 7 again, two transverse plates 15 are fixedly mounted on the inner wall of the control box 3, two limiting plates 16 are fixedly mounted on the transverse plates 15, and the threaded plate 14 is located between the two limiting plates 16.
When in use, as the flow of the butterfly valve is changed by rotating the worm 5, when the flow reaches the maximum value or the minimum value, the threaded plate 14 moves to the position abutting against the limiting plate 16, so that the limiting plate 16 limits the movement range of the threaded plate 14, and the opening and closing states of the butterfly valve are convenient to distinguish in the use process (after the threaded plate 14 abuts against the limiting plate 16, the worm 5 cannot rotate any more).
Referring to fig. 1 again, a fixing ring 26 is fixedly installed in the valve body 1, a movable ring 25 is disposed on a side of the fixing ring 26 facing the disc plate 2 through a plurality of elastic pieces 27, and a sealing ring 24 abutting against the disc plate 2 is fixedly disposed on the movable ring 25. The movable ring 25 is fixedly provided with a plurality of expansion plates 29 along the circumference at equal intervals, the fixed ring 26 is fixedly provided with a plurality of guide plates 28 along the circumference at equal intervals, and the expansion plates 29 are in sliding fit with the guide plates 28.
In actual use, when the butterfly valve is in the closed state, the setting of shell fragment 27 will make sealing washer 24 and dish board 2 butt, so, just effectively promoted the leakproofness performance of this butterfly valve, and on dish board 2 takes place to rotate, sealing washer 24 and expansion ring 25 will move towards solid fixed ring 26, correspondingly, expansion plate 29 slides in gradually facing deflector 28, play the guide effect to the motion of sealing washer 24 and expansion ring 25, after with the assurance butterfly valve is closed, sealing washer 24 can resume smoothly to the state with dish board 2 butt.
The working principle of the invention is as follows: when the butterfly valve is used, the worm 5 is rotated through the rotating wheel 23, the worm 5 drives the worm wheel 6 and the rotating shaft 4 to rotate, so that the disc plate 2 deflects in the valve body 1, the worm 5 drives the bidirectional screw rod 9 to rotate through the first transmission belt 8 in the process of gradually reducing the flow of the butterfly valve, so that the screw plate 14 moves towards the rotating shaft 4, the cylinder 11 gradually moves towards the stabilizing piece 7 in the process of moving, correspondingly, the length of the telescopic rod 12 exposed outside the cylinder 11 is gradually reduced, the spring 13 is gradually compressed, the reserved elastic potential energy of the spring is gradually increased, and the force applied by the stabilizing piece 7 to the rotating shaft 4 is gradually increased, so that the stability of the disc plate 2 automatically adjusts along with the change of the flow, on one hand, the flow control precision of the butterfly valve is improved, and on the other hand, the butterfly plate 2 and the worm wheel 6 are protected, and the service life of the butterfly valve is prolonged;
when the thread plate 14 moves, the rack plate 18 moves along with the movement, and the gear 19 rotates, so that the rotating shaft of the gear 19 drives the pointer 22 to rotate through the second driving belt 20 and points to scales arranged on the display disc 21 fan, thus, the moving amount of the thread plate 14 is transferred to the flow of the valve, the flow is displayed through the pointing of the pointer 22, the user can observe the flow more intuitively, and the flow control of the butterfly valve is facilitated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The bidirectional multi-deflection metal sealing butterfly valve is characterized by comprising a valve body (1), wherein the valve body (1) is in a cylindrical shape and hollow, a disc plate (2) is rotatably arranged in the valve body (1), and the disc plate (2) is in a circular shape;
a control box (3) is fixedly arranged on the periphery of the valve body (1), a rotating shaft (4) of the disc plate (2) stretches into the control box (3), two sides of the rotating shaft (4) are respectively provided with a stabilizing piece (7), and the rotating shaft (4) is connected with a control mechanism arranged in the control box (3);
a thread driving mechanism connected with the control mechanism is further arranged in the control box (3), the two stabilizing pieces (7) are all arc-shaped and are connected with the thread driving mechanism through a group of elastic telescopic mechanisms, the elastic telescopic mechanisms are stored with elastic potential energy, and the two stabilizing pieces (7) are all abutted to the rotating shaft (4);
the control box (3) is also provided with a flow indication mechanism which is connected with the thread driving mechanism;
the thread driving mechanism comprises a bidirectional screw rod (9) rotatably installed in the control box (3), a guide rod (10) fixedly installed in the control box (3) and two thread plates (14) arranged on the bidirectional screw rod (9) and the guide rod (10);
the threaded plate (14) is in threaded connection with the bidirectional screw rod (9), the bidirectional screw rod (9) is in sliding connection with the guide rod (10), the bidirectional screw rod (9) is connected with the control mechanism, and the stabilizing piece (7) is connected with the threaded plate (14) through the elastic telescopic mechanism;
the control mechanism comprises a worm (5) arranged in the control box (3) in a rotating mode and a worm wheel (6) fixedly arranged at the end portion of the rotating shaft (4), the worm wheel (6) is meshed with the worm (5), a rotating wheel (23) is fixedly arranged at one end of the worm (5), the rotating wheel (23) is located outside the control box (3), and the other end of the worm (5) is connected with the bidirectional screw rod (9) through a first transmission belt (8).
2. A bi-directional multi-offset metal seal butterfly valve according to claim 1, wherein the elastic telescopic mechanism comprises a cylinder (11) fixedly mounted on the threaded plate (14) and a telescopic rod (12) slidably arranged in the cylinder (11) through an elastic member, wherein one end of the telescopic rod (12) located outside the cylinder (11) is fixedly connected with the stabilizing member (7), and the elastic member stores elastic potential energy.
3. A two-way multi-bias metal seal butterfly valve according to claim 2, wherein the elastic member comprises a spring (13) arranged in the cylinder (11), one end of the spring (13) is connected with the wall of the cylinder (11), and the other end is connected with one end of the telescopic rod (12) away from the stabilizing member (7).
4. A two-way multi-bias metal seal butterfly valve according to claim 2, wherein the flow indication mechanism comprises a display disc (21) fixedly arranged on the outer wall of the control box (3) and a pointer (22) rotatably arranged on the control box (3), and scales are arranged on the display disc (21) along the circumference;
the control box (3) is rotationally provided with a gear (19), a rack plate (18) is fixed on the thread plate (14), the gear (19) is meshed with teeth on the rack plate (18), and the pointer (22) is connected with a rotating shaft of the gear (19) through a second transmission belt (20).
5. The bidirectional multi-offset metal seal butterfly valve according to claim 2, wherein two cross plates (15) are fixedly mounted on the inner wall of the control box (3), two limiting plates (16) are fixedly mounted on the cross plates (15), and the threaded plate (14) is located between the two limiting plates (16).
6. The bidirectional multi-offset metal sealing butterfly valve according to claim 1, wherein a fixed ring (26) is fixedly installed in the valve body (1), a movable ring (25) is arranged on one side of the fixed ring (26) facing the disc plate (2) through a plurality of elastic sheets (27), and a sealing ring (24) abutted with the disc plate (2) is fixedly arranged on the movable ring (25);
the movable ring (25) is fixedly provided with a plurality of expansion plates (29) along the circumference at equal intervals, the fixed ring (26) is fixedly provided with a plurality of guide plates (28) along the circumference at equal intervals, and the expansion plates (29) are in sliding sleeve fit with the guide plates (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245034.1A CN114413003B (en) | 2022-03-14 | 2022-03-14 | Bidirectional multi-bias metal sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245034.1A CN114413003B (en) | 2022-03-14 | 2022-03-14 | Bidirectional multi-bias metal sealing butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114413003A CN114413003A (en) | 2022-04-29 |
| CN114413003B true CN114413003B (en) | 2023-06-23 |
Family
ID=81263233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210245034.1A Active CN114413003B (en) | 2022-03-14 | 2022-03-14 | Bidirectional multi-bias metal sealing butterfly valve |
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| CN216009578U (en) * | 2021-09-03 | 2022-03-11 | 博雷（天津）控制系统制造有限公司 | Worm wheel butt-clamping butterfly valve |
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| CN114413003A (en) | 2022-04-29 |
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