CN208831817U - A kind of self-locking butterfly valve - Google Patents
A kind of self-locking butterfly valve Download PDFInfo
- Publication number
- CN208831817U CN208831817U CN201821372988.4U CN201821372988U CN208831817U CN 208831817 U CN208831817 U CN 208831817U CN 201821372988 U CN201821372988 U CN 201821372988U CN 208831817 U CN208831817 U CN 208831817U
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- China
- Prior art keywords
- butterfly valve
- valve body
- cylindrical cavity
- butterfly
- locking
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- 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.)
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Abstract
The utility model provides a kind of self-locking butterfly valve, it is related to butterfly valve field, including butterfly valve body, butterfly plate with the articulated shaft being fixedly connected in the middle part of butterfly valve body and with articulated shaft articulated connection, the first cylindrical cavity and second cylindrical cavity adjacent with the first cylindrical cavity are offered in the middle part of butterfly valve body, the diameter of second cylindrical cavity is greater than the diameter of the first cylindrical cavity, the top of second cylindrical cavity is equipped with articulated shaft, butterfly plate top is articulated and connected by articulated shaft and butterfly valve body, when butterfly valve body in the closure state, butterfly plate is fitted closely with the second cylindrical cavity, the utility model can be according to gravity self-locking valve, it avoids when water pump surprisingly stops water flow from springing up downwards to damage water pump.
Description
Technical field
The utility model relates to butterfly valve field more particularly to a kind of self-locking butterfly valves.
Background technique
Valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radioactivity
The flowing of the various types fluid such as medium mainly plays cutting and throttling action on pipeline, and butterfly valve is a discoidal butterfly plate,
It is rotated in valve body around the axis of its own, to achieve the purpose that opening and closing or adjusting.
The applicant of this patent has found that existing butterfly valve and other valve bodies can not in the process of implementing the utility model
Control liquid one-way flow, thus pumping plant to user supply water during, water pump may due to unexpected disconnection fault etc.,
Cause the water flow sprung up upwards in the case where no power, can only be sprung up downwards with gravity, thus will be to water pump shape
At water hammer effect, the damage of water pump is easily caused, therefore the water flow sprung up downwards how to be avoided to damage water pump, made
Obtaining water flow and capable of not springing up downwards becomes those skilled in the art's urgent problem to be solved.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of limitation water
Flow down the self-locking butterfly valve gushed.
The utility model is to be achieved by the following technical programs: a kind of self-locking butterfly valve, including butterfly valve body and butterfly valve
The articulated shaft being fixedly connected in the middle part of valve body and the butterfly plate with articulated shaft articulated connection offer the first circle in the middle part of butterfly valve body
The diameter of cylinder cavity and second cylindrical cavity adjacent with the first cylindrical cavity, the second cylindrical cavity is greater than first
The diameter of cylindrical cavity, the top of the second cylindrical cavity are equipped with articulated shaft, and butterfly plate top passes through articulated shaft and butterfly valve body
Articulated connection, when butterfly valve body in the closure state, butterfly plate is fitted closely with the second cylindrical cavity.
According to the above technical scheme, it is preferable that the outer wall of butterfly valve body offers multiple tracks groove, and groove is for limiting locking
The clamping screw of two side flange of butterfly valve body.
According to the above technical scheme, it is preferable that the lower end of butterfly valve body is fixedly connected with support rod.
According to the above technical scheme, it is preferable that the upper and lower ends of butterfly valve body are fixedly connected with ear shape handle.
The beneficial effects of the utility model are: the utility model passes through the cooperation of butterfly plate and butterfly valve body, so that liquid is only
Can one-way movement, when no liquid moves upwards, butterfly plate is then fitted closely with gravity and the second cylindrical cavity at once, stop
The flowing of the liquid of opposite direction, so as to avoid water hammering of the water flow for water pump of opposite direction, effective protection water
Pump.
Detailed description of the invention
Fig. 1 shows the side structure schematic view of embodiment according to the present utility model.
Fig. 2 shows the schematic view of the front view of embodiment according to the present utility model.
In figure: 1. butterfly valve bodies, 2. articulated shafts, 3. butterfly plates, 4. first cylindrical cavities, 5. second cylindrical cavities, 6.
Groove, 7. support rods, 8. ear shape handles.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing
The utility model is described in further detail with most preferred embodiment.
As shown, the utility model provides in the middle part of a kind of self-locking butterfly valve, including butterfly valve body 1 and butterfly valve body 1 admittedly
Surely the articulated shaft 2 connected and the butterfly plate 3 being articulated and connected with articulated shaft 2, the middle part of butterfly valve body 1 offer the first cylindrical body sky
Chamber 4 and second cylindrical cavity 5 adjacent with the first cylindrical cavity 4, the diameter of the second cylindrical cavity 5 are greater than the first circle
The diameter of cylinder cavity 4, the top of the second cylindrical cavity 5 are equipped with articulated shaft 2, and 3 top of butterfly plate passes through articulated shaft 2 and butterfly valve valve
Body 1 be articulated and connected, when butterfly valve body 1 in the closure state, butterfly plate 3 is fitted closely with the second cylindrical cavity 5, passes through butterfly plate
3 with the cooperation of butterfly valve body 1 so that liquid is merely able to one-way movement, when no liquid moves upwards, butterfly plate 3 is then at once with weight
Power is fitted closely with the second cylindrical cavity 5, stops the flowing of the liquid of opposite direction, so as to avoid the water flow of opposite direction
For the water hammering of water pump, effective protection water pump.
According to above-described embodiment, it is preferable that the outer wall of butterfly valve body 1 offers multiple tracks groove 6, and groove 6 is for limiting lock
The clamping screw of 1 liang of side flange of tight butterfly valve body, enhances the connection of butterfly valve body and flange, avoids the dislocation of butterfly valve body.
According to above-described embodiment, it is preferable that the lower end of butterfly valve body 1 is fixedly connected with support rod 7, exists convenient for construction personnel
When installing butterfly valve body, support rod is capable of providing stable support.
According to above-described embodiment, it is preferable that the upper and lower ends of butterfly valve body 1 are fixedly connected with ear shape handle 8, convenient for construction
The assembling of personnel while the stability for enhancing clamping screw.
The beneficial effects of the utility model are: the utility model passes through the cooperation of butterfly plate and butterfly valve body, so that liquid is only
Can one-way movement, when no liquid moves upwards, butterfly plate is then fitted closely with gravity and the second cylindrical cavity at once, stop
The flowing of the liquid of opposite direction, so as to avoid water hammering of the water flow for water pump of opposite direction, effective protection water
Pump.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of self-locking butterfly valve, which is characterized in that including butterfly valve body, with the articulated shaft that is fixedly connected in the middle part of butterfly valve body and
With the butterfly plate of articulated shaft articulated connection, offer in the middle part of the butterfly valve body the first cylindrical cavity and with the first cylindrical body
The second adjacent cylindrical cavity of cavity, the diameter of second cylindrical cavity are greater than the diameter of the first cylindrical cavity, institute
The top for stating the second cylindrical cavity is equipped with articulated shaft, and the butterfly plate top is articulated and connected by articulated shaft and butterfly valve body, when
In the closure state, butterfly plate fits closely butterfly valve body with the second cylindrical cavity.
2. a kind of self-locking butterfly valve according to claim 1, which is characterized in that the outer wall of the butterfly valve body offers multiple tracks
Groove, the groove are used to limit the clamping screw of locking two side flange of butterfly valve body.
3. a kind of self-locking butterfly valve according to claim 1, which is characterized in that the lower end of the butterfly valve body is fixedly connected with
Support rod.
4. a kind of self-locking butterfly valve according to claim 3, which is characterized in that the upper and lower ends of the butterfly valve body are fixed to be connected
It is connected to ear shape handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372988.4U CN208831817U (en) | 2018-08-24 | 2018-08-24 | A kind of self-locking butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372988.4U CN208831817U (en) | 2018-08-24 | 2018-08-24 | A kind of self-locking butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831817U true CN208831817U (en) | 2019-05-07 |
Family
ID=66310443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372988.4U Active CN208831817U (en) | 2018-08-24 | 2018-08-24 | A kind of self-locking butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831817U (en) |
-
2018
- 2018-08-24 CN CN201821372988.4U patent/CN208831817U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |