CN113154058B - Automatic butterfly valve of locking - Google Patents
Automatic butterfly valve of locking Download PDFInfo
- Publication number
- CN113154058B CN113154058B CN202110329808.4A CN202110329808A CN113154058B CN 113154058 B CN113154058 B CN 113154058B CN 202110329808 A CN202110329808 A CN 202110329808A CN 113154058 B CN113154058 B CN 113154058B
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- valve
- piece
- valve rod
- expansion
- plate
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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
- F16K1/32—Details
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
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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
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
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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
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an automatic locking butterfly valve which comprises a valve body and a valve plate, wherein the back surface of the valve plate is provided with a plurality of guide grooves at equal intervals along the circumferential direction, the valve plate is connected with an upper valve rod through a pin, the top end of the upper valve rod is connected with a hand wheel through a key, the bottom end of the upper valve rod is provided with a lower valve rod, an end shaft below the upper valve rod is matched with an end hole above the lower valve rod, the top of the lower valve rod is provided with an automatic fastening boss, the central axis of the automatic fastening boss is superposed with the central axis of a flow passage inner hole of the valve body, the bottom end of the valve body is connected with a sealing lower valve seat through a bolt, the bottom end of the lower valve rod is provided with a hexagonal prism, the bottom end of the sealing lower valve seat is provided with a hexagonal inner hole, the hexagonal prism is matched with the hexagonal inner hole, and the top of the valve body is connected with a sealing pressure plate through a bolt. Has the advantages that: the lower valve rod can be replaced according to different working environment temperatures to adjust the length and the angle of the automatic fastening boss so as to achieve better working performance.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an automatic locking butterfly valve.
Background
When a gas pipeline operates in winter, because the gas pipeline works in a lower temperature environment, the valve generally has the condition that the sealing is not tight due to the shrinkage of a sealing ring.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The technical task of the invention is to provide an automatic locking butterfly valve aiming at the defects, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic locking butterfly valve, includes valve body and valve plate, the back of valve plate is according to the equidistant guide slot of offering quantity as a whole of circumferencial direction, the valve plate has last valve rod through pin joint, the top of going up the valve rod has the hand wheel through the key-type connection, the bottom of going up the valve rod is equipped with down the valve rod, the end shaft of going up the valve rod below with the end hole phase-match of valve rod top down, the top of valve rod is equipped with the automatic fastening boss down, there is sealed disk seat down through bolted connection in the bottom of valve body, there is sealing plate at the top of valve body through bolted connection, the valve plate back-mounted expand piece, a left side expand piece, expand piece and the right side expand piece, go up expand the piece with expand the relative one end of piece down and all seted up boss expansion recess, the internally mounted of valve body has the main sealing washer, there is the main sealing washer one side of main sealing washer through the screw connection.
Furthermore, the central axis of the automatic fastening boss coincides with the central axis of the inner hole of the flow passage of the valve body.
Further, the bottom of lower valve rod is equipped with hexagonal prism, the bottom of sealed lower disk seat is equipped with the hexagonal hole, hexagonal prism with hexagonal hole phase-match.
Further, the boss expanding groove is an elliptical groove.
Furthermore, a sealing expansion ring is arranged at the back of the valve plate.
Further, the outer side surface of the valve plate is designed to be a spherical surface.
Further, the peripheries of the upper expanding piece, the left expanding piece, the lower expanding piece and the right expanding piece are mutually matched to form a circumference shape.
Further, the seal expanding ring is installed on the outer sides of the upper expanding piece, the left expanding piece, the lower expanding piece and the right expanding piece.
The invention has the beneficial effects that:
1. through the sealed ring that expands that sets up on the valve plate, the valve can play supplementary sealed effect when the closure state, is particularly suitable for under the condition of lower temperature main seal ring because the low temperature is worked when warping, plays good supplementary sealed effect. And the lower valve rod can be replaced according to different working environment temperatures to adjust the length and the angle of the automatic fastening boss so as to achieve better working performance.
2. The spherical surface formed by the main surface of the valve plate can greatly reduce the stress of the valve during low-temperature work, reduce the deformation of the valve plate during work and greatly improve the sealing property and the stability.
3. Through the cooperation of the hexagonal prism that lower valve rod set up and the hexagonal hole that sealed lower disk seat set up and the cooperation of the end axle and the end hole of upper and lower valve rod junction, the stability of two valve rod valves about promoting has promoted the reliability of valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic locking butterfly valve according to an embodiment of the invention;
FIG. 2 is a side view of an auto-locking butterfly valve according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a seal expanding ring in an automatic locking butterfly valve according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a hexagonal inner hole of an automatic locking butterfly valve according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an automatic fastening boss of an automatic locking butterfly valve according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a right expansion piece of an automatic locking butterfly valve according to an embodiment of the invention;
fig. 7 is an enlarged view at a in fig. 2.
Reference numerals:
1. the automatic valve comprises a hand wheel, 2 parts of a sealing pressing plate, 3 parts of a valve body, 4 parts of a valve plate, 5 parts of a sealing lower valve seat, 6 parts of an upper valve rod, 7 parts of a lower valve rod, 8 parts of a main sealing ring, 9 parts of a main sealing ring pressing plate, 10 parts of a sealing expanding ring, 4-1 parts of an upper expanding part, 4-2 parts of a left expanding part, 4-3 parts of a right expanding part, 5-1 parts of a hexagonal inner hole, 7-1 parts of an automatic fastening boss, 7-2 parts of a hexagonal prism of the lower valve rod, 11 parts of a boss expanding groove.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The first embodiment is as follows:
referring to fig. 1-7, an automatically-locked butterfly valve according to an embodiment of the present invention includes a valve body 3 and a valve plate 4, the back of the valve plate 4 is provided with 4 guide grooves 4-5 at equal intervals in a circumferential direction, the valve plate 4 is connected with an upper valve rod 6 through a pin, the top end of the upper valve rod 6 is connected with a hand wheel 1 through a key, the bottom end of the upper valve rod 6 is provided with a lower valve rod 7, an end shaft below the upper valve rod 6 is matched with an end hole above the lower valve rod 7, the top of the lower valve rod 7 is provided with an automatic fastening boss 7-1, the bottom end of the valve body 3 is connected with a lower sealing valve seat 5 through a bolt, the top of the valve body 3 is connected with a sealing pressure plate 2 through a bolt, the back of the valve plate 4 is provided with an upper expanding piece 4-1, a left expanding piece 4-2, a lower expanding piece 4-3 and a right expanding piece 4-4, one end of the upper expanding piece 4-1 opposite to the lower expanding piece 4-3 is provided with an expanding groove 11, a main sealing ring 8 is installed inside the valve body 3, one side of the main sealing ring 8 is connected with an upper sealing ring 9, the upper valve rod 6 is in clearance fit with the lower valve rod 7, the lower valve seat, and the lower valve rod 6 is in axial direction of the lower valve seat, and the lower valve rod 6, and the lower valve seat, and the lower valve rod are in axial direction, and the axial sealing pressure plate, and the axial sealing is achieved by the axial sealing of the lower valve rod by the lower valve rod; the main seal ring 8 is fixed by the bolt connection of the main seal ring pressure plate 9 and the valve body 3.
Through the scheme of the invention, the lower valve rod 7 can be replaced according to different working environment temperatures to adjust the length and the angle of the automatic fastening boss 7-1 so as to achieve better working performance.
Example two:
referring to fig. 1 to 7, for the automatic fastening boss 7-1, a central axis of the automatic fastening boss 7-1 coincides with a central axis of a flow passage inner hole of the valve body 3, for the lower valve stem 7, a bottom end of the lower valve stem 7 is provided with a hexagonal prism 7-2, a bottom end of the sealing lower valve seat 5 is provided with a hexagonal inner hole 5-1, the hexagonal prism 7-2 is matched with the hexagonal inner hole 5-1, for the boss expansion groove 11, the boss expansion groove 11 is an elliptical groove, for the valve plate 4, a back portion of the valve plate 4 is provided with a sealing expansion ring 10, for the valve plate 4, an outer side surface of the valve plate 4 is designed to be a spherical surface, for the upper expansion piece 4-1, the left expansion piece 4-2, the lower expansion piece 4-3 and a periphery of the right expansion piece 4-4 are mutually fitted to form a circle, for the sealing expansion ring 10, the sealing expansion ring 10 is mounted to the upper expansion piece 4-1, the left expansion piece 4-2, the lower expansion piece 4-3 and the right expansion piece 4-4 to realize a tight fit, wherein the sealing expansion piece 10 and the auxiliary expansion piece 3 are mounted to the upper expansion piece 4-1; the expansion of the four expanding pieces is realized by the matching of the automatic fastening boss 7-1 and the boss expansion groove 11 on the lower valve rod 7, when the valve plate 4 is in a full-closed state from a certain angle of an opening state, the automatic fastening boss 7-1 is squeezed into the closed boss expansion groove 11, so that the four expanding pieces synchronously move towards four main directions, the expansion of the sealing expanding ring 10 is realized, when the valve is fully closed, the sealing expanding ring 10 is expanded to the maximum, and the further fastening and sealing in the full-closed state are realized. When the valve is opened, the automatic fastening boss 7-1 gradually comes off, and the four expansion pieces are contracted to the minimum state due to the contraction of the sealing expansion ring 10 and do not hinder the flow of fluid.
Through the scheme of the invention, the arranged seal expanding ring 10 can play a role of auxiliary sealing when the valve is in a closed state, is particularly suitable for working when the main seal ring 8 deforms at low temperature under the condition of low temperature, and plays a good auxiliary sealing effect.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
When the practical application, rotate through hand wheel 1, drive and go up valve rod 6 and rotate, go up valve rod 6 and pass through the key-type connection with torque transfer for valve plate 4, wherein drive valve plate 4 only go up valve rod 6, lower valve rod 7 and sealed lower disk seat 5 cooperation are fixed and are played the supporting role to valve plate 4 to the axis of automatic fastening boss 7-1 on the lower valve rod 7 coincides with the runner axis all the time, during the closed condition: valve plate 4 is by opening the in-process of moving to closing, and automatic fastening boss 7-1 gets into boss expansion recess 11 after reaching a certain given angle, and then makes four expand the piece and enlarge along with the angle of opening diminishes, and sealed expanding ring 10 expands outward when the valve full cut closes to closely cooperate with 3 inner walls of valve body to realize inseparabler supplementary seal, during the open mode: when the valve plate 4 is opened from a fully closed state, the automatic fastening boss 7-1 automatically separates from the boss expansion groove 11, the four expansion pieces contract under the contraction force of the sealing expansion ring 10, and when the valve plate is opened to a certain specific angle, the contraction is minimum, and the flow of fluid is not influenced
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The automatic locking butterfly valve is characterized by comprising a valve body (3) and a valve plate (4), wherein the back surface of the valve plate (4) is provided with guide grooves (4-5) with 4 numbers at equal intervals along the circumferential direction, the valve plate (4) is connected with an upper valve rod (6) through a pin, the top end of the upper valve rod (6) is connected with a hand wheel (1) through a key, the bottom end of the upper valve rod (6) is provided with a lower valve rod (7), an end shaft below the upper valve rod (6) is matched with an end hole above the lower valve rod (7), the top of the lower valve rod (7) is provided with an automatic fastening boss (7-1), the bottom of valve body (3) has sealed disk seat (5) down through bolted connection, there is sealed clamp plate (2) at the top of valve body (3) through bolted connection, install the back of valve plate (4) and go up to expand piece (4-1), a left side expand piece (4-2), expand piece (4-3) down and right side expand piece (4-4), go up expand piece (4-1) with expand piece (4-3) relative one end down and all seted up boss expansion recess (11), the back of valve plate (4) is provided with sealed ring (10) that expands, on expand piece (4-1), a left side expand piece (4-2), expand piece (4-3) down with the right side expands piece (4-4) peripheral looks mutually The valve plate is characterized in that the valve plate is matched into a circular shape, a sealing expansion ring (10) is installed on the upper expansion piece (4-1), the left expansion piece (4-2), the lower expansion piece (4-3) and the right expansion piece (4-4) are arranged on the outer side, a main sealing ring (8) is installed inside the valve body (3), one side of the main sealing ring (8) is connected with a main sealing ring pressing plate (9) through a screw, the valve plate (4) moves to the closing process from the opening state, after a certain given angle is reached, an automatic fastening boss (7-1) enters the boss expansion groove (11), the upper expansion piece (4-1), the left expansion piece (4-2), the lower expansion piece (4-3) and the right expansion piece (4-4) are expanded along with the reduction of the opening angle, and when the valve is closed, the sealing expansion ring (10) is expanded to be tightly matched with the inner wall of the valve body (3) to realize auxiliary sealing.
2. The self-locking butterfly valve according to claim 1, characterised in that the central axis of the self-tightening boss (7-1) coincides with the central axis of the inner bore of the flow channel of the valve body (3).
3. The automatic locking butterfly valve according to claim 1, characterized in that the lower valve rod (7) is provided with a hexagonal prism (7-2) at the bottom end, the lower sealing valve seat (5) is provided with a hexagonal inner hole (5-1) at the bottom end, and the hexagonal prism (7-2) is matched with the hexagonal inner hole (5-1).
4. The self-locking butterfly valve according to claim 1, characterised in that said boss expansion recess (11) is an oblong slot.
5. The self-locking butterfly valve according to claim 1, characterised in that the outer lateral surface of the valve plate (4) is designed as a spherical surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110329808.4A CN113154058B (en) | 2021-03-26 | 2021-03-26 | Automatic butterfly valve of locking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110329808.4A CN113154058B (en) | 2021-03-26 | 2021-03-26 | Automatic butterfly valve of locking |
Publications (2)
Publication Number | Publication Date |
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CN113154058A CN113154058A (en) | 2021-07-23 |
CN113154058B true CN113154058B (en) | 2023-03-21 |
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Application Number | Title | Priority Date | Filing Date |
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CN202110329808.4A Active CN113154058B (en) | 2021-03-26 | 2021-03-26 | Automatic butterfly valve of locking |
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CN (1) | CN113154058B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202252044U (en) * | 2011-09-19 | 2012-05-30 | 上海大通自控设备有限公司 | Connection structure for butterfly valve plate and valve stem |
CN206190930U (en) * | 2016-11-23 | 2017-05-24 | 铜陵众一流体科技有限公司 | Butterfly valve with intelligence headstock gear |
CN108533766A (en) * | 2018-06-05 | 2018-09-14 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve seal structure and novel butterfly valve |
CN108533767A (en) * | 2018-06-05 | 2018-09-14 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve |
CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
-
2021
- 2021-03-26 CN CN202110329808.4A patent/CN113154058B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202252044U (en) * | 2011-09-19 | 2012-05-30 | 上海大通自控设备有限公司 | Connection structure for butterfly valve plate and valve stem |
CN206190930U (en) * | 2016-11-23 | 2017-05-24 | 铜陵众一流体科技有限公司 | Butterfly valve with intelligence headstock gear |
CN108533766A (en) * | 2018-06-05 | 2018-09-14 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve seal structure and novel butterfly valve |
CN108533767A (en) * | 2018-06-05 | 2018-09-14 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve |
CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
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CN113154058A (en) | 2021-07-23 |
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