CN212718052U - Butterfly valve external opening and closing device - Google Patents
Butterfly valve external opening and closing device Download PDFInfo
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- CN212718052U CN212718052U CN202021572835.1U CN202021572835U CN212718052U CN 212718052 U CN212718052 U CN 212718052U CN 202021572835 U CN202021572835 U CN 202021572835U CN 212718052 U CN212718052 U CN 212718052U
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- opening
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- mounting hole
- butterfly valve
- push rod
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Abstract
The utility model discloses an external opening and closing device of a butterfly valve, which comprises an opening mechanism and a closing mechanism, wherein valve plates on two sides of a valve shaft of the butterfly valve are respectively an opening side and a closing side, a first mounting hole and a second mounting hole are communicated on the side wall of a main pipe of a butterfly valve inlet end adjacent to the opening side, the first mounting hole is arranged opposite to the opening side, and the second mounting hole is arranged opposite to the closing side; the bottom end of a connecting pipe of the opening mechanism is in butt joint communication with the first mounting hole, and the bottom end of a push rod of the opening mechanism is in movable contact with the opening side; the bottom end of a connecting pipe of the closing mechanism is communicated with the second mounting hole, and the bottom end of a push rod of the closing mechanism is in movable contact with the closing side. The advantages are that: the water station is not required to be drained for maintenance through the matching of the opening mechanism and the closing mechanism, the opening and closing functions of the butterfly valve are ensured, and the continuity and stability of the system and the normal delivery of domestic water are ensured; easy operation, easy to assemble, equipment is simple, the problem of the solution construction degree of difficulty that can relax through the device.
Description
The technical field is as follows:
the utility model relates to a butterfly valve field, concretely relates to external headstock gear of butterfly valve.
Background art:
most of large-diameter butterfly valves in large water stations and reservoirs are installed in a humid environment, connecting parts between a valve shaft of the butterfly valve and a valve plate of the butterfly valve are prone to corrosion and damage, so that the valve plate of the butterfly valve falls off, the butterfly valve is out of control, when the butterfly valve is overhauled or replaced, the water station is forced to drain water for overhauling, a water pump on one side of an inlet end of the butterfly valve is withdrawn from operation, the water supply pressure is reduced, the production load is reduced, a large amount of waste of water resources is caused, and the normal water use requirements of people are; meanwhile, the conveying main pipe is mostly buried underground, the butterfly valve is narrow in space when being maintained and replaced, the difficulty of maintenance and replacement is increased, a large amount of manpower and material resources can be consumed, and huge economic cost is brought.
The utility model has the following contents:
an object of the utility model is to provide an external headstock gear of butterfly valve.
The utility model discloses by following technical scheme implement: the external opening and closing device for the butterfly valve comprises an opening mechanism and a closing mechanism, wherein valve plates on two sides of a valve shaft of the butterfly valve are respectively an opening side and a closing side, a first mounting hole and a second mounting hole are communicated with the side wall of a main pipe at the inlet end of the butterfly valve adjacent to the opening side, the first mounting hole is opposite to the opening side, and the second mounting hole is opposite to the closing side;
the bottom end of a connecting pipe of the opening mechanism is in butt joint communication with the first mounting hole, and the bottom end of a push rod of the opening mechanism is in movable contact with the opening side; the bottom end of the connecting pipe of the closing mechanism is communicated with the second mounting hole, and the bottom end of the push rod of the closing mechanism is in movable contact with the closing side.
Furthermore, the opening mechanism also comprises a short pipe connected between the first mounting hole and a connecting pipe of the opening mechanism, one end of the short pipe is closed, the open end of the short pipe is fixedly communicated with the first mounting hole, and the short pipe is vertically arranged with the main pipe; and a third mounting hole which is opposite to the first mounting hole is formed in the side wall of the short pipe, and a connecting pipe of the opening mechanism is in butt joint communication with the third mounting hole.
Further, the included angle between the axis of the short pipe and the horizontal plane is 15-45 degrees.
Furthermore, the included angle between the connecting pipe of the opening mechanism and the short pipe is 30-60 degrees.
Furthermore, the opening mechanism is the same as the closing mechanism in structure and comprises a connecting pipe, a gate valve, a stuffing box, a support, a driving device and a push rod, the top end of the connecting pipe is fixedly connected with an inlet of the gate valve, the stuffing box is installed at an outlet of the gate valve, the push rod penetrates through the stuffing box in a sliding mode, the driving device is fixed to the top end of the stuffing box through the support, and an output shaft of the driving device is coaxially fixed to the push rod.
Further, the driving device is any one of a worm gear lifter, an electric push rod, an air cylinder or a hydraulic cylinder.
Furthermore, the anti-rotation device further comprises an anti-rotation bolt, wherein the anti-rotation bolt is connected to the support in a threaded mode, and the top end of the anti-rotation bolt is in movable contact with the push rod.
Furthermore, the included angle between the connecting pipe of the closing mechanism and the main pipe is 80-90 degrees.
The utility model has the advantages that: the water station is not required to be drained for maintenance through the matching of the opening mechanism and the closing mechanism, so that the opening and closing functions of the butterfly valve and the continuous and stable system as well as the normal delivery of domestic water are ensured; the equipment that uses in the device all can prepare in advance, the later stage installation fix on female pipe can, easy operation, easy to assemble, equipment is simple, does not receive the restriction in space, has saved a large amount of manpowers, material resources and economic cost, the problem of the solution construction degree of difficulty that can relax through the device.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the utility model;
fig. 2 is a schematic structural view of the opening mechanism.
In the figure: the device comprises an opening mechanism 1, a closing mechanism 2, a butterfly valve 3, a valve shaft 4, a valve plate 5, an opening side 6, a closing side 7, a main pipe 8, a first mounting hole 9, a second mounting hole 10, a connecting pipe 11, a push rod 12, a short pipe 13, a third mounting hole 14, a gate valve 16, a stuffing box 17, a support 18, a driving device 19 and an anti-rotation bolt 20.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 2, the external opening and closing device for the butterfly valve comprises an opening mechanism 1 and a closing mechanism 2, wherein valve plates 5 on two sides of a valve shaft 4 of the butterfly valve 3 are respectively an opening side 6 and a closing side 7, a first mounting hole 9 and a second mounting hole 10 are communicated with a side wall of a main pipe 8 at an inlet end of the butterfly valve 3 adjacent to the opening side 6, the first mounting hole 9 is arranged opposite to the opening side 6, and the second mounting hole 10 is arranged opposite to the closing side 7;
the bottom end of a connecting pipe 11 of the opening mechanism 1 is in butt joint communication with the first mounting hole 9, and the bottom end of a push rod 12 of the opening mechanism 1 is in movable contact with the opening side 6; the bottom end of a connecting pipe 11 of the closing mechanism 2 is communicated with a second mounting hole 10 in a butt joint mode, the bottom end of a push rod 12 of the closing mechanism 2 is in movable contact with a closing side 7, when a valve plate 5 of the butterfly valve 3 falls off, the opening and closing functions are lost, an opening side 6 of the valve plate 5 is pushed towards the outlet end of the butterfly valve 3 through the push rod 12 in the opening mechanism 1, the valve plate 5 rotates to open the valve plate 5 of the butterfly valve 3 in place, meanwhile, the closing side 7 of the valve plate 5 is supported by the closing mechanism 2 to resist the impact force of water flow, the opening function of the valve plate 5 can be achieved, scales can be marked on the push rod 12, an operator can know the length of the push rod 12 entering a main pipe 8, and whether the valve plate 5 is opened in place or not can be; when the butterfly valve 3 needs to be closed, the opening mechanism 1 retracts the push rod 12, the push rod 12 of the closing mechanism 2 continues to push the closing side 7 of the valve plate 5 towards the outlet end direction of the butterfly valve 3, the valve plate 5 rotates, and the valve plate 5 is closed in place under the action of water flow; the opening and closing functions of the butterfly valve 3 can be ensured without draining and overhauling the water station through the matching of the opening mechanism 1 and the closing mechanism 2, so that the continuity and stability of the system and the normal delivery of domestic water are ensured; meanwhile, equipment used in the device can be prepared in advance, later-stage installation is fixed on the main pipe 8, operation is easy, installation is convenient, the equipment is simple, space limitation is avoided, a large amount of manpower, material resources and economic cost are saved, and the problem of construction difficulty can be solved easily through the device.
The opening mechanism 1 further comprises a short pipe 13 connected between the first mounting hole 9 and the connecting pipe 11 of the opening mechanism 1, one end of the short pipe 13 is closed, the closed end of the short pipe 13 is also connected with a gate valve 16 and used for cutting off water flow of the short pipe 13, the open end of the short pipe 13 is fixedly communicated with the first mounting hole 9, and the short pipe 13 is vertically arranged with the main pipe 8; the side wall of the short pipe 13 is provided with a third mounting hole 14 which is opposite to the first mounting hole 9, a connecting pipe 11 of the opening mechanism 1 is in butt joint communication with the third mounting hole 14, the under-pressure tapping technology is a known technology in the field, the first mounting hole 9 and the second mounting hole 10 are formed in the main pipe 8 by utilizing the under-pressure tapping technology, and the first mounting hole 9 is conveniently formed in the main pipe 8 under pressure due to the fact that the under-pressure tapping technology has a certain angle requirement in the tapping process.
The structure of the opening mechanism 1 is the same as that of the closing mechanism 2, the opening mechanism 1 comprises a connecting pipe 11, a gate valve 16, a stuffing box 17, a support 18, a driving device 19 and a push rod 12, the top end of the connecting pipe 11 is fixedly connected with an inlet of the gate valve 16, the stuffing box 17 is installed at an outlet of the gate valve 16, the outlet of the gate valve 16 is connected with the stuffing box 17 through a flange, the push rod 12 penetrates through the stuffing box 17 in a sliding mode, the stuffing box 17 plays a sealing role in the moving process of the push rod 12, the driving device 19 is fixed at the top end of the stuffing box 17 through the support 18, and an output shaft of the driving device 19 is coaxially fixed with the push rod 12.
The driving device 19 is any one of a worm gear lifter, an electric push rod, an air cylinder or a hydraulic cylinder, the push rod 12 is driven to move through the driving device 19, in this embodiment, the worm gear lifter is used, and the bottom end of the worm is fixedly connected with the top end of the push rod 12.
The butterfly valve further comprises an anti-rotation bolt 20, the support 18 is in threaded connection with the anti-rotation bolt 20, the top end of the anti-rotation bolt 20 is in movable contact with the push rod 12, when the valve plate 5 of the butterfly valve 3 is kept in an open state, the anti-rotation bolt 20 locks the push rod 12 to prevent the push rod 12 from rotating, and the push rod 12 can keep stable support for the valve plate 5 for a long time.
The included angle between the axis of the short pipe 13 and the horizontal plane is 15-45 degrees. The angle between the connecting pipe 11 and the short pipe 13 of the opening device 1 is 30-60 degrees. The included angle between the connecting pipe 11 of the closing mechanism 2 and the main pipe 8 is 80-90 degrees, the installation angle of the corresponding equipment is adjusted according to the diameter of the butterfly valve 3 on site, and only the opening mechanism 1 and the closing mechanism 2 can respectively realize the pushing function on the opening side 6 and the closing side 7 of the valve plate 5 of the butterfly valve 3.
The specific operation process of the embodiment is as follows:
1. in the preparation stage, a connecting pipe 11 is obliquely fixed on a short pipe 13 of the opening mechanism 1, and gate valves 16 are fixed on the connecting pipe 11 of the opening mechanism 1 and the connecting pipe 11 of the closing mechanism 2;
2. according to the actual situation, a short pipe 13 of the opening mechanism 1 and a connecting pipe 11 of the closing mechanism 2 are welded on the main pipe 8;
3. a first mounting hole 9 is formed in the butt joint position of a short pipe 13 and a mother pipe 8 of the opening mechanism 1 by utilizing a hole forming technology with pressure, and a second mounting hole 10 is formed in the butt joint position of a connecting pipe 11 and the mother pipe 8 of the closing mechanism 2;
4. the opening mechanism 1 and the closing mechanism 2 respectively cut off the water flow of the corresponding connecting pipe 11 through a gate valve 16, and then a stuffing box 17, a push rod 12, a bracket 18 and a driving device 19 are sequentially arranged on the gate valve 16 of the opening mechanism 1 and the gate valve 16 of the closing mechanism 2;
5. when the valve plate 5 falling off from the butterfly valve 3 needs to be opened, the gate valves 16 corresponding to the opening mechanism 1 and the closing mechanism 2 are opened, the push rod 12 of the opening mechanism 1 enters the main pipe 8 and abuts against the opening side 6 of the valve plate 5 and pushes the valve plate 5 to rotate until the butterfly valve 3 is opened, the push rod 12 of the closing mechanism 2 enters the main pipe 8 and abuts against the closing side 7 of the valve plate 5 to support the valve plate 5, and the valve plate 5 is prevented from rotating under the impact of water flow;
when the valve plate 5 falling off from the butterfly valve 3 needs to be closed, the push rod 12 of the opening mechanism 1 is withdrawn to one side of the inlet end of the butterfly valve 3, the push rod 12 of the closing mechanism 2 pushes the valve plate 5, and meanwhile, under the impact action of water flow, the valve plate 5 rotates to the closing state of the butterfly valve 3.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The external opening and closing device for the butterfly valve is characterized by comprising an opening mechanism and a closing mechanism, wherein valve plates on two sides of a valve shaft of the butterfly valve are respectively an opening side and a closing side, a first mounting hole and a second mounting hole are communicated with the side wall of a main pipe at the inlet end of the butterfly valve adjacent to the opening side, the first mounting hole is opposite to the opening side, and the second mounting hole is opposite to the closing side;
the bottom end of a connecting pipe of the opening mechanism is in butt joint communication with the first mounting hole, and the bottom end of a push rod of the opening mechanism is in movable contact with the opening side; the bottom end of the connecting pipe of the closing mechanism is communicated with the second mounting hole, and the bottom end of the push rod of the closing mechanism is in movable contact with the closing side.
2. The external opening and closing device of a butterfly valve according to claim 1, wherein the opening mechanism further comprises a short pipe connected between the first mounting hole and a connecting pipe of the opening mechanism, one end of the short pipe is closed, an open end of the short pipe is fixedly communicated with the first mounting hole, and the short pipe is arranged perpendicular to the main pipe; and a third mounting hole which is opposite to the first mounting hole is formed in the side wall of the short pipe, and a connecting pipe of the opening mechanism is in butt joint communication with the third mounting hole.
3. The externally-arranged opening and closing device for the butterfly valve as claimed in claim 2, wherein an included angle between the axis of the short pipe and the horizontal plane is 15-45 degrees.
4. The external opening and closing device for the butterfly valve as claimed in claim 2, wherein an included angle between the connecting pipe of the opening mechanism and the short pipe is 30-60 °.
5. The external opening and closing device of a butterfly valve according to any one of claims 1 to 4, wherein the opening mechanism and the closing mechanism have the same structure, the opening mechanism comprises a connecting pipe, a gate valve, a stuffing box, a support, a driving device and a push rod, the top end of the connecting pipe is fixedly connected with the inlet of the gate valve, the stuffing box is arranged at the outlet of the gate valve, the push rod is slidably arranged in the stuffing box in a penetrating manner, the driving device is fixed at the top end of the stuffing box through the support, and the output shaft of the driving device is coaxially fixed with the push rod.
6. The external opening and closing device for the butterfly valve according to claim 5, wherein the driving device is any one of a worm gear lifter, an electric push rod, an air cylinder or a hydraulic cylinder.
7. The external opening and closing device of a butterfly valve according to claim 5, further comprising an anti-rotation bolt, wherein the anti-rotation bolt is screwed on the bracket, and the top end of the anti-rotation bolt is in movable contact with the push rod.
8. The externally-arranged opening and closing device for the butterfly valve according to any one of claims 1, 2, 3, 4, 6 or 7, wherein an included angle between a connecting pipe of the closing mechanism and the main pipe is 80-90 degrees.
9. The external opening and closing device for the butterfly valve according to claim 5, wherein an included angle between the connecting pipe of the closing mechanism and the main pipe is 80-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021572835.1U CN212718052U (en) | 2020-07-31 | 2020-07-31 | Butterfly valve external opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021572835.1U CN212718052U (en) | 2020-07-31 | 2020-07-31 | Butterfly valve external opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212718052U true CN212718052U (en) | 2021-03-16 |
Family
ID=74911256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021572835.1U Active CN212718052U (en) | 2020-07-31 | 2020-07-31 | Butterfly valve external opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212718052U (en) |
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2020
- 2020-07-31 CN CN202021572835.1U patent/CN212718052U/en active Active
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