CN203627825U - Butterfly valve - Google Patents

Butterfly valve Download PDF

Info

Publication number
CN203627825U
CN203627825U CN201320840807.7U CN201320840807U CN203627825U CN 203627825 U CN203627825 U CN 203627825U CN 201320840807 U CN201320840807 U CN 201320840807U CN 203627825 U CN203627825 U CN 203627825U
Authority
CN
China
Prior art keywords
sub
valve
butterfly plate
butterfly
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320840807.7U
Other languages
Chinese (zh)
Inventor
周明龙
余丙荣
李文
程晶晶
葛壮
汪伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Technical College of Mechanical and Electrical Engineering
Original Assignee
Anhui Technical College of Mechanical and Electrical Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Technical College of Mechanical and Electrical Engineering filed Critical Anhui Technical College of Mechanical and Electrical Engineering
Priority to CN201320840807.7U priority Critical patent/CN203627825U/en
Application granted granted Critical
Publication of CN203627825U publication Critical patent/CN203627825U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model particularly relates to a butterfly valve which is arranged on a butterfly plate and provided with a sub butterfly plate, and belongs to valve devices. The butterfly valve has the advantages that a valve rod is tubular, a sub valve rod is sleeved with the valve rod, the butterfly plate is provided with a through hole, a guide groove is formed between the through hole and an axial hole of a valve body, the sub butterfly plate is arranged in the guide groove, the sub butterfly plate presses and seals the through hole, and the sub butterfly rod penetrates through the axial hole in the valve body and is connected with the sub butterfly plate. The butterfly valve has the advantages that the sub butterfly plate and the sub butterfly rod are added on the butterfly plate, through starting of the sub butterfly plate, negative pressure is eliminated, and the starting difficulty problem due to large torque is solved; the sub butterfly plate moves in the guide groove, namely the moving direction is parallel with the butterfly plate, the sub butterfly plate is located on the same plane with the butterfly plate all the time, washing of fluid on the sub butterfly plate is reduced, the sub butterfly plate is effectively protected, the overall butterfly valve only needs one set of control device, and the structure is simple.

Description

A kind of butterfly valve
Technical field
The utility model belongs to valving, relates in particular to the butterfly valve of belt butterfly plate on a kind of butterfly plate.
Background technique
At present, industrial valves door type is various, is widely used in the industries such as chemical industry, food, water, electricity, mainly plays Flow-rate adjustment and the cut-off effect of flowing medium.Butterfly valve generally comprises valve body, butterfly plate, valve seat, valve rod, a frame transmission mechanism, butterfly plate seal ring and valve seat insert have the sealing surface cooperatively interacting, butterfly plate is fixedly mounted on valve rod by pin, spool is mounted freely on the valve rod in the main body that embeds flexible seat ring by rotation, in the time that butterfly plate is very large, valve needs driving mechanism that very large moment of torsion is provided while keying.
Publication number provides a kind of butterfly valve for the patent of CN 1782475A, be characterized in that butterfly plate is provided with the through hole that can allow MEDIA FLOW cross, the interior formation of through hole that sub-butterfly plate is arranged on butterfly plate seals, sub-valve rod is connected and fixed through axis hole and sub-butterfly plate in valve body axis hole and valve rod, and rotation valve rod and sub-valve rod manipulate butterfly plate and sub-butterfly plate opens and closes.The large problem of moment of torsion when although this butterfly valve can solve current butterfly valve unlatching, but due in high-pressure fluid pipes, the spool of butterfly valve bears the many pressure larger than stream, and in the time that female butterfly plate is opened completely, sub-butterfly plate is vertical with pipeline, the impact force being subject to is larger, easily damages, in addition, female butterfly plate is different from the opening sequence of sub-butterfly plate, therefore valve rod and sub-valve rod need two sets of operating and controlling equipment, make like this structure of this butterfly valve more complicated, are unfavorable for operation simultaneously.
Model utility content
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of butterfly valve, not only can play brokenly the effect of negative pressure, and has effectively protected sub-butterfly plate, simple in structure, solves a difficult problem that is not easy manipulation.
In order to realize above-mentioned effect, the technical solution of the utility model is: a kind of butterfly valve, comprise valve body, butterfly plate, handle and valve rod, be characterized in described valve rod in a tubular form, sheathed sub-valve rod in valve rod, establishes through hole on butterfly plate, between through hole and the axis hole of valve body, establish guide groove, in guide groove, establish sub-butterfly plate, sub-butterfly plate gland, be sealed on through hole, sub-valve rod is connected with sub-butterfly plate through the axis hole of valve body.
The utility model further improves, and the upper end of described sub-valve rod is provided with screw thread, and the length of screw thread is greater than the length of guide groove.
The utility model further improves, and the diameter of described sub-butterfly plate is greater than the diameter of through hole.
The utility model further improves, and is provided with one group of pin-and-hole on described valve rod, and every group of pin-and-hole has six at least, is evenly distributed on valve rod.
The utility model further improves, and is provided with one group of corresponding pin-and-hole, and is provided with tapped hole on described handle.
Compared with prior art, advantage is: this butterfly valve installs sub-butterfly plate and sub-valve rod additional on butterfly plate, by the unlatching of sub-butterfly plate, realizes and abolishes negative pressure, has solved the unlatching difficult problem causing greatly because of moment of torsion; Sub-butterfly plate moves in guide groove, and moving direction is parallel with butterfly plate, all the time with butterfly plate at grade, reduced washing away of fluid antithetical phrase butterfly plate, effectively protect sub-butterfly plate, make whole butterfly valve only need adopt a sets of operating and controlling equipment simultaneously, simple in structure.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the utility model embodiment's use schematic diagram;
Fig. 3 is that the A-A of Fig. 1 is to view.
In figure: 1-handle, 2-bearing pin, 3-valve rod, 4-guide groove, 5-butterfly plate, 6-valve rod, 7-valve body, 8-butterfly plate, 9-through hole.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is further described.
Embodiment as shown in Figure 1, a kind of butterfly valve, comprise valve body 7, butterfly plate 8, handle 1 and valve rod 3, in a tubular form, sheathed sub-valve rod 6 in valve rod, establishes through hole 9 to described valve rod on butterfly plate, between through hole and the axis hole of valve body, establish guide groove 4, in guide groove, establish sub-butterfly plate 5, sub-butterfly plate gland, be sealed on through hole, sub-valve rod is connected with sub-butterfly plate through the axis hole of valve body.
As shown in Figure 2, the upper end of described sub-valve rod 6 is provided with screw thread, and the length of screw thread is greater than the length of guide groove 4, can couple together by the tapped hole directly and on handle 1.In the time that the pressure reduction at butterfly plate two ends in pipeline is very large, make butterfly valve moment of torsion large, open difficulty, now, handle 1 is not connected with bearing pin 2 with valve rod 3, and handle with sleeve 1 only has sub-valve rod 6 to do radial motion, and sub-butterfly plate 5 moves along guide groove 4, open through hole 9, the pressure reduction at balance two ends, moment of torsion reduces greatly.The diameter of sub-butterfly plate 5 being designed to be greater than to the diameter of through hole 9, is the effect for better its road sealing.
After through hole is opened, with bearing pin 2 fixed handles 1 and valve rod 3, bearing pin has six at least, be evenly distributed on valve rod, be rotated further handle 1, sub-butterfly plate is along with butterfly plate is done axial motion, until butterfly plate 8 is opened completely, sub-butterfly plate and butterfly plate all the time at grade, have reduced washing away of fluid antithetical phrase butterfly plate.
Equally, the closing process of butterfly valve is just contrary with unlatching, first handle with sleeve 1, and butterfly plate 8 is closed, and because through hole is also in open mode, bearing pin 2 is taken out, and handle 1 disconnects with valve rod 3, is rotated further handle 1 until sub-butterfly plate 5 is closed.

Claims (5)

1. a butterfly valve, comprise valve body (7), butterfly plate (8), handle (1) and valve rod (3), it is characterized in that: described valve rod in a tubular form, sheathed sub-valve rod (6) in valve rod, on butterfly plate, establish through hole (9), between through hole and the axis hole of valve body, establish guide groove (4), in guide groove, establish sub-butterfly plate (5), sub-butterfly plate gland, be sealed on through hole, sub-valve rod is connected with sub-butterfly plate through the axis hole of valve body.
2. butterfly valve according to claim 1, is characterized in that: the upper end of described sub-valve rod (6) is provided with screw thread, and the length of screw thread is greater than the length of guide groove (4).
3. butterfly valve according to claim 1 and 2, is characterized in that: the diameter of described sub-butterfly plate (5) is greater than the diameter of through hole (9).
4. butterfly valve according to claim 1 and 2, is characterized in that: on described valve rod (3), be provided with one group of pin-and-hole, every group of pin-and-hole has six at least, is evenly distributed on valve rod (3).
5. butterfly valve according to claim 1 and 2, is characterized in that: on described handle (1), be provided with one group of corresponding pin-and-hole, and be provided with tapped hole.
CN201320840807.7U 2013-12-19 2013-12-19 Butterfly valve Expired - Fee Related CN203627825U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320840807.7U CN203627825U (en) 2013-12-19 2013-12-19 Butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320840807.7U CN203627825U (en) 2013-12-19 2013-12-19 Butterfly valve

Publications (1)

Publication Number Publication Date
CN203627825U true CN203627825U (en) 2014-06-04

Family

ID=50814306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320840807.7U Expired - Fee Related CN203627825U (en) 2013-12-19 2013-12-19 Butterfly valve

Country Status (1)

Country Link
CN (1) CN203627825U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776251A (en) * 2015-03-30 2015-07-15 苏州福润机械有限公司 Control valve capable of conveniently controlling water yield
CN104776252A (en) * 2015-03-30 2015-07-15 苏州福润机械有限公司 Valve capable of controlling water yield
CN105626891A (en) * 2016-03-27 2016-06-01 衢州市依科达节能技术有限公司 Dual-spool control valve
CN110630752A (en) * 2019-09-05 2019-12-31 李彩华 Convenient butterfly valve with waterproof function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776251A (en) * 2015-03-30 2015-07-15 苏州福润机械有限公司 Control valve capable of conveniently controlling water yield
CN104776252A (en) * 2015-03-30 2015-07-15 苏州福润机械有限公司 Valve capable of controlling water yield
CN105626891A (en) * 2016-03-27 2016-06-01 衢州市依科达节能技术有限公司 Dual-spool control valve
CN105626891B (en) * 2016-03-27 2018-01-30 衢州市依科达节能技术有限公司 A kind of dual-spool control valve door
CN110630752A (en) * 2019-09-05 2019-12-31 李彩华 Convenient butterfly valve with waterproof function
CN110630752B (en) * 2019-09-05 2021-02-09 江苏明江阀业有限公司 Convenient butterfly valve with waterproof function

Similar Documents

Publication Publication Date Title
CN203627825U (en) Butterfly valve
CN101737503B (en) Self-balancing stop valve with piston type valve core and hidden rod
CN205155231U (en) Pressure balance type fixes ball valve
CN203868363U (en) Hydraulic screw type stop valve
CN202418846U (en) Automatic and manual two-purpose valve switch actuator
CN202561069U (en) Self pressure-relieving type double valve plate soft seal butterfly valve
CN203549034U (en) Ceramic abrasion resistance throttling valve
CN207018586U (en) A kind of pipe fitting for controlling water (flow) direction
CN206943500U (en) A kind of Three-way butterfly valve
CN206234391U (en) Three-chip type manual ball valve
CN204420166U (en) Large adjustable specific rotation cylinder modulating valve
CN204420200U (en) Cylinder-rotating three-way diverter valve
CN201318492Y (en) Throttling stop valve
CN204042052U (en) A kind of plastics connect ball valve
CN209524107U (en) A kind of manual vacuum ball valve for being easy to take one's bearings and clean
CN208997388U (en) A kind of wear resistance ball valve
CN202418857U (en) Actuator for hand switch of valve
CN202125631U (en) Automatic disconnection ball valve
CN210510329U (en) Gate valve device for water delivery pipeline
CN202901429U (en) Backflow-resistant automatic flow-adjusting valve
CN204420165U (en) Revolve a noise reduction modulating valve
CN204025782U (en) Butterfly ball valve
CN203322356U (en) Fixed ball valve with sealing sleeves
CN205639644U (en) Pipe valve
CN204784762U (en) Bidirectional zero -leakage's soft seal butterfly valve

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140604

Termination date: 20141219

EXPY Termination of patent right or utility model