CN2418309Y - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN2418309Y CN2418309Y CN 00231388 CN00231388U CN2418309Y CN 2418309 Y CN2418309 Y CN 2418309Y CN 00231388 CN00231388 CN 00231388 CN 00231388 U CN00231388 U CN 00231388U CN 2418309 Y CN2418309 Y CN 2418309Y
- Authority
- CN
- China
- Prior art keywords
- pointer
- butterfly
- display
- valve
- butterfly valve
- 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
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to a butterfly valve which comprises a display for the position of a butterfly plate, wherein, the display is composed of a transmission screw, a dial, a pointer, etc., the display is arranged on the top part of a worm wheel case which is arranged on the head part of the butterfly valve, a worm which is connected with a hand wheel and a worm wheel which is connected with a valve rod are arranged in the worm wheel case, a valve plate is also fixedly connected with the butterfly plate, and the transmission screw which is arranged on the display is fixedly connected with the pointer and the valve rod. When the hand wheel is driven, the butterfly plate is driven to rotate through the worm, the worm wheel and the valve rod, and the butterfly valve is opened and closed. Meanwhile, the valve rod drives the pointer to rotate, and the position of the butterfly plate is clearly and accurately displayed on the dial. An O type sealing ring is also arranged on the display, so the display device has good sealing performance.
Description
The utility model relates to a kind of valving, especially a kind of butterfly valve apparatus that can accurately show the butterfly plate position of butterfly valve.
Butterfly valve is the purpose that reaches opening and closing by butterfly plate around the axle rotation in the valve body.Butterfly valve is main in pipeline does to cut off and throttling usefulness, have simple in structure, open and close rapid fluid resistance and the little advantage of operation moment of torsion, valve opening and close and the effect of control flow rate depends on the position at butterfly plate place, the existing reed valve device is that an iron plate is housed on valve rod, have one to protrude shape such as pointer shape indicating arrow around the iron plate, and cover at Worm gear case and to be cast with graduation line, show the position of butterfly plate with this, such display unit can only be leaned on operator's sensation control flow rate, thereby not accurate enough, and sealing is poor, and external form is not attractive in appearance yet.
The purpose of this utility model is: a kind of butterfly valve is provided, makes it have the butterfly plate lever position indicator, can clearly show the butterfly plate position exactly, and this display unit good seal performance.
The technological scheme that realizes the utility model purpose is as follows: in a kind of butterfly valve that comprises worm gear, worm screw, valve rod and butterfly plate, worm gear and worm screw place the Worm gear case of butterfly valve, and worm gear is fixedlyed connected with valve rod, and valve rod is also fixedlyed connected with the butterfly plate in the butterfly valve body.Also comprise butterfly valve butterfly plate position indicator in this butterfly valve, this display device comprises a display list pointer supporting sleeve, a transmission screw, a dial and a pointer.The bottom of display list pointer supporting sleeve is a valve rod, and pointer is being supported on the top.The transmission screw is fastenedly connected by screw thread with the top center of pointer, display list pointer supporting sleeve and valve rod successively.The display list dial be installed in pointer below, do not contact between pointer and the dial, leave the gap.
Butterfly plate position indicator in the utility model is installed in the Worm gear case top of butterfly valve head, and worm screw that links to each other with handwheel and the worm gear that links to each other with valve rod are housed in the worm gear case.At Worm gear case tops center one display list bearing support is housed, a glass display panel is housed on the top of this bearing support, the O RunddichtringO is housed between display floater and case lid.
Owing to adopt technique scheme, when with hand or machine drive handwheel, promptly drive the worm screw rotation that is connected with handwheel, and the worm gear that is meshed with it by the worm screw drive rotates, be attached thereto the valve rod rotation that connects by worm gear drives again, drive butterfly plate rotation mounted thereto by valve rod at last, realize the keying of valve.Because the utility model butterfly valve has the butterfly plate position indicator, make valve rod when driving the butterfly plate rotation, also driving the display list pointer supporting sleeve and the pointer that are installed in the transmission screw of its top center and are connected on the transmission screw rotates, make pointer realize rotatablely moving by the transmission screw, because pointer is in the central position of valve rod, make pointer and valve rod and the butterfly plate work is concentric and with the rotation of angular velocity.The position at pointer place can be read the display list dial below being installed in pointer, this demonstration simultaneously also be the position at butterfly plate place, compared with prior art, that the butterfly plate position indicator that the utility model had can be guaranteed is clear, demonstrate the butterfly plate position exactly.
Because the butterfly plate position indicator in the utility model is equipped with the glass display panel on the top, the O RunddichtringO also is housed between display floater and case lid, not only can display position, can prevent that also the dust foreign matter from entering in the display device, thereby compared with prior art, the good airproof performance of the display unit in the utility model.
Below in conjunction with drawings and Examples the utility model is further specified
Fig. 1 is the structural drawing of the utility model butterfly valve
Fig. 2 is that the A of Fig. 1 is to view
Among the figure, 2. worm gear case 3. flat keys 4. worm gears 5. transmission screws 6. worm gear case lids 7. pointer supporting sleeves 8. dials 9. pointers 10. display list bearing supports 12. screws 14. tables cover 15.O RunddichtringO 16. display floaters 17. worm screws 18. handwheels 19. valve rods 20. butterfly plates
Figure 1 shows that an example structure figure of the utility model butterfly valve, this butterfly valve apparatus comprises handwheel, Worm gear case and valve body.Valve rod 19 is through Worm gear case and valve body, and the butterfly plate 20 in the valve body is fixedlyed connected with valve rod 19.Worm gear case is made up of casing 2 and case lid 6, and worm screw 17 that links to each other with handwheel 18 and the worm gear 4 that links to each other with valve rod 19 are housed in the casing, and worm gear 4 is fixedlyed connected with valve rod 19 by flat key 3.The butterfly plate position indicator that the utility model butterfly valve is had is installed in the Worm gear case top of butterfly valve head, this butterfly plate position indicator mainly is made up of display list pointer supporting sleeve 7, transmission screw 5, dial 8 and pointer 9, display list pointer supporting sleeve 7 bottoms are valve rod 19, and pointer 9 is being supported on the top.Transmission screw 5 is connected by screw threads for fastening with the top center that refers to nail 9, display list pointer supporting sleeve 7 and valve rod 19 successively.Display list dial 8 be installed in pointer 9 below, gapped between pointer 9 and the dial 8, in case pointer scratch dial, dial is marked with 0 °～90 ° scale, as shown in Figure 2, when pointer indication butterfly plate position was O °, the expression valve was closed fully, represents the valve complete opening when the butterfly plate position is 90 °.
Butterfly plate position indicator in the utility model also comprises the display list bearing support 10 of the top center that is installed in case lid 6, and transmission screw 5, pointer 9 and dial 8 are installed in the center of display list bearing support 10.One glass display panel 16 is housed on the top of display list bearing support 10.Display list lid 14 is pressed on case lid 6 and the glass display panel 16 by several (in the present embodiment being 4) screws 12.Between case lid 6 and display floater 16, O RunddichtringO 15 is housed, to guarantee the sealing of butterfly plate display device.
The utility model butterfly valve can not only show the butterfly plate position clear, exactly, with the keying of guaranteeing valve and the effect of control flow rate, and can make the external form of valve more attractive in appearance.
Claims (6)
1, a kind of butterfly valve, comprise worm gear (4), worm screw (17), valve rod (19) and butterfly plate (20), worm gear (4) and worm screw (17) place the Worm gear case of butterfly valve, worm gear (4) is fixedlyed connected with valve rod (19), valve rod (19) is also fixedlyed connected with the butterfly plate (20) in the butterfly valve body, it is characterized in that: also comprise butterfly valve butterfly plate position indicator, this display device comprises a display list pointer supporting sleeve (7), one transmission screw (5), a dial (8) and a pointer (9), the bottom of display list pointer supporting sleeve (7) is valve rod (19), and pointer (9) is being supported on the top; Transmission screw (5) is connected by screw threads for fastening with the top center of pointer (9), display list pointer supporting sleeve (7) and valve rod (19) successively; Display list dial (8) be installed in pointer (9) below, do not contact between pointer (9) and the dial (8), leave the gap.
2, butterfly valve according to claim 1 is characterized in that: described butterfly plate position indicator is installed in the Worm gear case top of butterfly valve head, and Worm gear case is made up of casing (2) and case lid (6), and the worm screw of being equipped with in the casing (17) is connected with handwheel (18).
3, butterfly valve according to claim 2 is characterized in that: in the top center of case lid (6) a display list bearing support (10) is installed, transmission screw (5), pointer (9) and dial (8) are installed in the center of display list bearing support (10).
4, butterfly valve according to claim 3 is characterized in that: a glass display panel (16) is housed on the top of display list bearing support (10).
5, butterfly valve according to claim 4 is characterized in that: display list lid (14) is pressed on case lid (6) and the glass display panel (16) with several screws (12).
6, butterfly valve according to claim 4 is characterized in that: between case lid (6) and display floater (16) O RunddichtringO (15) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231388 CN2418309Y (en) | 2000-04-03 | 2000-04-03 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231388 CN2418309Y (en) | 2000-04-03 | 2000-04-03 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418309Y true CN2418309Y (en) | 2001-02-07 |
Family
ID=33594296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231388 Expired - Fee Related CN2418309Y (en) | 2000-04-03 | 2000-04-03 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418309Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443776A (en) * | 2015-12-31 | 2016-03-30 | 天津宝恒流体控制设备股份有限公司 | Sealing butterfly valve |
| CN105546127A (en) * | 2015-12-31 | 2016-05-04 | 天津宝恒流体控制设备股份有限公司 | Positioning structure for opening position of valve in pipe |
-
2000
- 2000-04-03 CN CN 00231388 patent/CN2418309Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443776A (en) * | 2015-12-31 | 2016-03-30 | 天津宝恒流体控制设备股份有限公司 | Sealing butterfly valve |
| CN105546127A (en) * | 2015-12-31 | 2016-05-04 | 天津宝恒流体控制设备股份有限公司 | Positioning structure for opening position of valve in pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010207 |