CN207864637U - Without axis pin butterfly valve - Google Patents
Without axis pin butterfly valve Download PDFInfo
- Publication number
- CN207864637U CN207864637U CN201721737715.0U CN201721737715U CN207864637U CN 207864637 U CN207864637 U CN 207864637U CN 201721737715 U CN201721737715 U CN 201721737715U CN 207864637 U CN207864637 U CN 207864637U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- butterfly
- axis pin
- valve body
- 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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Abstract
Include valve body, sealing ring, butterfly plate, upper valve rod, axle sleeve, lower valve rod and rear cover the utility model discloses a kind of no axis pin butterfly valve.The valve body engages connection with sealing ring, the sealing ring is set to the both ends end of butterfly plate simultaneously, the microcephaly of the upper valve rod is through the interstitial hole on valve body top, and the upper valve rod is simultaneously through the endoporus of butterfly plate, the square hole intermeshing of the upper valve rod and butterfly plate.The axle sleeve is socketed on upper valve rod, and the lower valve rod is inscribed in valve body, and the rear cover is fixedly connected with the valve body by bolt.No axis pin butterfly valve disclosed by the utility model, by the internal structure for improving butterfly valve, avoid occurring leakage problem at axis pin because using axis pin, avoid occurring butterfly plate, valve rod problem on deformation because beaing axis pin, the process requirements to butterfly plate, valve rod are reduced simultaneously, improve production efficiency and product quality.
Description
Technical field
The utility model belongs to low pressure valve technical field, and in particular to a kind of no axis pin butterfly valve.
Background technology
Butterfly valve can be used for switching low-voltage tube medium as a kind of regulating valve that structure is relatively simple, such as control air,
The flowing of the various types fluids such as water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium.It is existing
Some butterfly valves are completed to open and close using closure member butterfly plate as disk around valve shaft rotation.
Butterfly valve in the prior art includes butterfly plate, valve body, rubber seal, valve rod, and pin is usually used between butterfly plate and valve rod
Axis is fixed, and drives butterfly plate to rotate by rotary valve rod.However, often occur leakage phenomenon at axis pin in use,
Cause butterfly valve seal performance to decline, or even occurs the extreme situations such as not using.
Utility model content
The utility model is directed to the situation of the prior art, provides a kind of no axis pin butterfly valve.
The utility model use following technical scheme, the no axis pin butterfly valve include valve body, sealing ring, butterfly plate, upper valve rod,
Axle sleeve, lower valve rod and rear cover, wherein：
The valve body engages connection with sealing ring, and the sealing ring is set to the both ends end of butterfly plate, the upper valve simultaneously
The microcephaly of bar is through the interstitial hole on valve body top, and the upper valve rod is simultaneously through the endoporus of butterfly plate, the upper valve rod and butterfly
The square hole of plate is intermeshed；
The axle sleeve is socketed on upper valve rod, and the lower valve rod is inscribed in valve body, and the rear cover is fixed by bolt and valve body
Connection.
According to above-mentioned technical proposal, the no axis pin butterfly valve further includes lantern ring and hole baffle ring, and the middle head of the valve body is set
There is step, which matches and connect with lantern ring, and the hole is external in lantern ring with baffle ring.
According to above-mentioned technical proposal, the upper valve rod has outer tetragonal structure.
No axis pin butterfly valve disclosed by the utility model, advantage are, by improving the internal structure of butterfly valve, avoid
Occur leakage problem at axis pin because using axis pin, avoids occurring butterfly plate, valve rod problem on deformation because beaing axis pin, reduce simultaneously
To the process requirements of butterfly plate, valve rod, production efficiency and product quality are improved.
Description of the drawings
Fig. 1 is the sectional structure chart of the preferred embodiment in the utility model.
Fig. 2A to Fig. 2 C is the local structural graph of the preferred embodiment in the utility model respectively.
Fig. 3 is the local structural graph of the preferred embodiment in the utility model.
Reference numeral includes：1- valve bodies；2- sealing rings；3- butterfly plates；4- upper valve rods；5- axle sleeves；6- lantern rings；The holes 7- shelves
Circle；8- lower valve rods；9- rear covers.
Specific implementation mode
The utility model discloses a kind of no axis pin butterfly valves, with reference to preferred embodiment, to the specific of the utility model
Embodiment is further described.
The cross-section structure of the no axis pin butterfly valve is shown to Fig. 3, Fig. 1 referring to Figure 1 of the drawings.Preferably, the no pin
Axis butterfly valve includes valve body 1, sealing ring 2, butterfly plate 3, upper valve rod 4, axle sleeve 5, lower valve rod 8 and rear cover 9, wherein：
The valve body 1 engages connection with sealing ring 2, and the sealing ring 2 is set to the both ends end of butterfly plate 3 simultaneously, described
The microcephaly of upper valve rod 4 through 1 top of valve body interstitial hole, the upper valve rod 4 simultaneously through butterfly plate 3 endoporus, it is described on
Valve rod 4 and the square hole of butterfly plate 3 are intermeshed；
The axle sleeve 5 is socketed on upper valve rod 4, and the lower valve rod 8 is inscribed in valve body 1, and the rear cover 9 passes through bolt and valve body
1 is fixedly connected.
Further, the no axis pin butterfly valve further includes lantern ring 6 and hole baffle ring 7, and the middle head of the valve body 1 is equipped with platform
Rank, the step are matched and are connect with lantern ring 6, and the hole baffle ring 7 is external in lantern ring 6.
It is worth noting that, butterfly plate 3 has cubic pore structure, and as shown in Fig. 2A to Fig. 2 C, the four directions pore structure, processing side
Just, size controls well.Meanwhile upper valve rod 4 has outer tetragonal structure, as shown in figure 3, by between butterfly plate 3 and upper valve rod 4
Four directions cooperation rotates to control butterfly plate 3, realizes that butterfly valve 3 is opened and closed.The utility model patent application is disclosed without axis pin butterfly valve,
Upper valve rod 4 flies out in compression in order to prevent, and the outer circle of the end of upper valve rod 4 is slightly less than middle head outer circle, and in valve body 1
Middle head devises a step, and lantern ring 6 is designed at step and is placed at step, is then fixed with hole ring washer 7, such butterfly
Valve will not fly out by road pipe pressure to be come, and has ensured the safety that butterfly valve uses.
For a person skilled in the art, the technical solution recorded in foregoing embodiments can still be repaiied
Change or equivalent replacement of some of the technical features, within the spirit and principle of the utility model, made by it is any
Modification, equivalent replacement, improvement etc., should be included in the scope of protection of the utility model.
Claims (3)
1. a kind of no axis pin butterfly valve, which is characterized in that including valve body, sealing ring, butterfly plate, upper valve rod, axle sleeve, lower valve rod and after
Lid, wherein：
The valve body engages connection with sealing ring, and the sealing ring is set to the both ends end of butterfly plate simultaneously, the upper valve rod
Microcephaly through valve body top interstitial hole, the upper valve rod simultaneously through the endoporus of butterfly plate, the upper valve rod and butterfly plate
Square hole is intermeshed；
The axle sleeve is socketed on upper valve rod, and the lower valve rod is inscribed in valve body, and the rear cover is fixedly connected with the valve body by bolt.
2. no axis pin butterfly valve according to claim 1, which is characterized in that the no axis pin butterfly valve further includes that lantern ring and hole are used
The middle head of baffle ring, the valve body is equipped with step, which matches and connect with lantern ring, and the hole is external in lantern ring with baffle ring.
3. no axis pin butterfly valve according to claim 1, which is characterized in that the upper valve rod has outer tetragonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737715.0U CN207864637U (en) | 2017-12-14 | 2017-12-14 | Without axis pin butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737715.0U CN207864637U (en) | 2017-12-14 | 2017-12-14 | Without axis pin butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864637U true CN207864637U (en) | 2018-09-14 |
Family
ID=63468915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721737715.0U Expired - Fee Related CN207864637U (en) | 2017-12-14 | 2017-12-14 | Without axis pin butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864637U (en) |
-
2017
- 2017-12-14 CN CN201721737715.0U patent/CN207864637U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20211214 |