CN217130360U - Throttle adjusting butterfly valve - Google Patents
Throttle adjusting butterfly valve Download PDFInfo
- Publication number
- CN217130360U CN217130360U CN202220523977.1U CN202220523977U CN217130360U CN 217130360 U CN217130360 U CN 217130360U CN 202220523977 U CN202220523977 U CN 202220523977U CN 217130360 U CN217130360 U CN 217130360U
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- plate
- butterfly
- throttle
- valve
- butterfly plate
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Abstract
The utility model relates to the technical field of valves, especially, relate to a butterfly valve is adjusted in throttle, which comprises a valve body, butterfly plate and valve shaft, the butterfly plate is rotationally located in the valve body through the valve shaft, the valve shaft includes axis body and lower axis body, the butterfly plate is equipped with the last mount pad of installing the axis body, the butterfly plate is equipped with the lower mount pad of installing the lower axis body, it is hollow pole to go up the axis body, be equipped with the water conservancy diversion hole on the butterfly plate, the butterfly plate is equipped with the throttle plate, the position that the throttle plate corresponds every water conservancy diversion hole all is equipped with the orifice the same with water conservancy diversion hole aperture, be equipped with the screw on the throttle plate, the screw spiral is equipped with the screw rod, the upper end surface of screw rod is glazing smooth section, and glazing smooth section cover is located in the upper shaft body and upwards extends to the axis body upper end, the upper shaft body is equipped with the first actuating mechanism who is used for opening and shutting the butterfly plate, the upper end of screw rod is equipped with the second actuating mechanism who is used for rotating the screw rod. The butterfly valve can more accurately adjust the flow when the butterfly plate is at a fixed opening angle, and can slightly open the butterfly valve when the butterfly plate is in a closed state.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a butterfly valve is adjusted in throttle.
Background
The butterfly valve is a valve commonly used, in prior art, people can only realize the regulation to the butterfly valve flow through the opening angle who changes the butterfly plate, and people can't carry out the micro-adjustment operation to the flow of this butterfly valve when the butterfly plate is in a fixed opening angle, and when the butterfly plate is in the closure condition, people also can't open the butterfly valve a little under the prerequisite that does not open the butterfly plate, thereby make the butterfly valve be in that the butterfly plate can't carry out more accurate regulation to the flow under fixed opening angle, and can't realize the micro-opening operation of butterfly valve under the butterfly plate closure condition.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a throttle is adjusted butterfly valve can make the butterfly valve can adjust the flow more accurately when the butterfly plate is in fixed opening angle to and can open the butterfly valve a little when the butterfly plate is in the closed condition.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a throttling regulation butterfly valve comprises a valve body, a butterfly plate and a valve shaft, wherein the butterfly plate is rotatably arranged in the valve body through the valve shaft, the valve shaft comprises an upper shaft body and a lower shaft body, the upper end of the rear side surface of the butterfly plate is provided with an upper mounting seat for mounting the upper shaft body, the lower end of the rear side surface of the butterfly plate is provided with a lower mounting seat for mounting the lower shaft body, the upper shaft body is a hollow rod, the butterfly plate is provided with a flow guide hole, the rear side surface of the butterfly plate is provided with a throttle plate, the throttle plate is provided with a throttle hole with the same aperture as that of the flow guide hole at the position corresponding to each flow guide hole, the throttle plate is provided with a screw hole, the screw hole is spirally provided with a screw rod, the upper end surface of the screw rod is an upper smooth section, the upper smooth section is sleeved in the upper shaft body and extends upwards to the upper end of the upper shaft body, the upper end of the upper shaft body is provided with a first driving mechanism for opening and closing the butterfly plate, the upper end of the screw rod is provided with a second driving mechanism for rotating the screw rod to enable the throttle plate to move up and down along the screw rod, the orifice hole and the diversion hole can be mutually staggered or overlapped.
The butterfly plate is further improved, and limiting blocks for limiting the throttle plate are arranged at two ends of the throttle plate on the rear side of the butterfly plate.
In a further improvement, the upper shaft body and the upper mounting seat are connected through a spline structure, and the lower shaft body and the lower mounting seat are connected through a spline structure.
Further improve, the lower extreme of screw rod is smooth section down, the upper end of lower axis body is equipped with the recess, the smooth section cover of lower of screw rod is located in the recess.
In a further improvement, a sealing ring is arranged on one side of the throttle plate, which is opposite to the butterfly plate.
By adopting the technical scheme, the beneficial effects of the utility model are that: the butterfly valve can more accurately adjust the flow when the butterfly plate is at a fixed opening angle and slightly open when the butterfly plate is in a closed state by adjusting the throttle plate, and has simple integral structure and convenient operation; the limiting block is arranged, and the lower end of the screw rod is sleeved in the groove to ensure the attaching degree of the throttle plate and the butterfly plate; and one side of the throttle plate opposite to the butterfly plate is provided with a sealing ring, so that the sealing degree of the butterfly plate and the throttle plate is ensured.
Drawings
Fig. 1 is a schematic front side three-dimensional structure of the present invention;
fig. 2 is a schematic diagram of a rear side three-dimensional structure of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of an embodiment of the present invention;
fig. 4 is a schematic structural view of the throttle plate according to the embodiment of the present invention.
Icon:
1. a valve body; 2. a butterfly plate; 21. a flow guide hole; 22. an upper mounting seat; 23. a lower mounting seat; 31. an upper shaft body; 32. a lower shaft body; 4. a throttle plate; 41. an orifice; 5. a screw; 6. and a limiting block.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 4, the embodiment provides a throttling regulation butterfly valve, which includes a valve body 1, a butterfly plate 2 and a valve shaft, wherein the butterfly plate 2 is rotatably disposed in the valve body 1 through the valve shaft, the valve shaft includes an upper shaft body 31 and a lower shaft body 32, an upper mounting seat 22 for mounting the upper shaft body 31 is disposed at an upper end of a rear side surface of the butterfly plate 2, a lower mounting seat 23 for mounting the lower shaft body 32 is disposed at a lower end of the rear side surface of the butterfly plate 2, the upper shaft body 31 and the upper mounting seat 22, and the lower shaft body 32 and the lower mounting seat 23 are connected through spline structures, so as to ensure stability of connection between the butterfly plate 2 and the upper and lower shaft bodies 32, the upper shaft body 31 is a hollow rod, a diversion hole 21 is disposed on the butterfly plate 2, a throttle plate 4 is disposed on the rear side surface of the butterfly plate 2, a seal ring is disposed around a side of the throttle plate 4 opposite to the butterfly plate 2, a throttle plate 4 is provided with a throttling hole 41 having the same aperture as that of the diversion hole 21 corresponding to each diversion hole, the throttle plate is characterized in that a screw hole is formed in the throttle plate 4, a screw rod 5 is spirally arranged in the screw hole, the upper end surface of the screw rod 5 is an upper smooth section, the upper smooth section is sleeved in the upper shaft body 31 and extends upwards to the upper end of the upper shaft body 31, the lower end of the screw rod 5 is a lower smooth section, a groove is formed in the upper end of the lower shaft body 32, the lower smooth section of the screw rod 5 is sleeved in the groove, a first driving mechanism used for opening and closing the butterfly plate 2 is arranged at the upper end of the upper shaft body 31, a second driving mechanism used for rotating the screw rod 5 to enable the throttle plate 4 to move up and down along the screw rod 5 is arranged at the upper end of the screw rod 5, the throttle hole 41 and the diversion hole 21 can be staggered or overlapped, and a limiting block 6 for limiting the throttle plate 4 is arranged at two ends of the throttle plate 4 at the rear side of the butterfly plate 2.
In this embodiment, the front side surface of the butterfly plate 2 is an arc surface which bulges forwards, so that the resistance of opening the butterfly valve can be reduced.
In this embodiment, the first driving mechanism and the second driving mechanism both include a servo motor and a speed reducer, one end of the speed reducer is connected with the output end of the servo motor through a bearing, and the other end of the two speed reducers is connected with the valve rod and the screw rod 5 through a gear, so as to drive the butterfly valve and the throttle plate 4.
The utility model discloses an adjust the throttle plate 4 that sets up, can make the butterfly valve can adjust the flow more accurately when butterfly plate 2 is in fixed opening angle to and can open the butterfly valve a little when butterfly plate 2 is in the closed condition, and overall structure is simple, convenient operation.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a throttle and adjust butterfly valve, includes valve body, butterfly plate and valve shaft, the butterfly plate rotationally locates in the valve body through the valve shaft, the valve shaft includes axis body and lower axis body, the upper end of butterfly plate trailing flank is equipped with the last mount pad of installing the axis body, the lower extreme of butterfly plate trailing flank is equipped with the lower mount pad of installing lower axis body, its characterized in that: the upper shaft body is a hollow rod, the butterfly plate is provided with flow guide holes, the rear side face of the butterfly plate is provided with a throttle plate, the position of the throttle plate corresponding to each flow guide hole is provided with a throttle hole with the same aperture as the flow guide hole, the throttle plate is provided with a screw hole, the screw hole is spirally provided with a screw rod, the upper end surface of the screw rod is an upper smooth section, the upper smooth section is sleeved in the upper shaft body and upwards extends to the upper end of the upper shaft body, the upper end of the upper shaft body is provided with a first driving mechanism for opening and closing the butterfly plate, and the upper end of the screw rod is provided with a second driving mechanism for rotating the screw rod to enable the throttle plate to move up and down along the screw rod, so that the throttle hole and the flow guide holes can be mutually staggered or superposed.
2. A throttle regulating butterfly valve according to claim 1, characterized in that: and the rear side of the butterfly plate is provided with limiting blocks for limiting the throttle plate at two ends of the throttle plate.
3. A throttle regulating butterfly valve according to claim 1, characterized in that: the upper shaft body and the upper mounting seat, and the lower shaft body and the lower mounting seat are connected through spline structures.
4. A throttle regulating butterfly valve according to claim 1, characterized in that: the lower extreme of screw rod is smooth section down, the upper end of lower axis body is equipped with the recess, the smooth section cover of lower of screw rod is located in the recess.
5. A throttle regulating butterfly valve according to claim 1, characterized in that: and a sealing ring is arranged on one side of the throttle plate opposite to the butterfly plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220523977.1U CN217130360U (en) | 2022-03-11 | 2022-03-11 | Throttle adjusting butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220523977.1U CN217130360U (en) | 2022-03-11 | 2022-03-11 | Throttle adjusting butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130360U true CN217130360U (en) | 2022-08-05 |
Family
ID=82643210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220523977.1U Active CN217130360U (en) | 2022-03-11 | 2022-03-11 | Throttle adjusting butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217130360U (en) |
-
2022
- 2022-03-11 CN CN202220523977.1U patent/CN217130360U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |