CN210423738U - Fire-fighting signal butterfly valve - Google Patents
Fire-fighting signal butterfly valve Download PDFInfo
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- CN210423738U CN210423738U CN201920886889.6U CN201920886889U CN210423738U CN 210423738 U CN210423738 U CN 210423738U CN 201920886889 U CN201920886889 U CN 201920886889U CN 210423738 U CN210423738 U CN 210423738U
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- valve
- valve rod
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- butterfly
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Abstract
The utility model provides a fire-fighting signal butterfly valve, which comprises a valve body component and a driving component; the valve body assembly comprises a valve body, an upper valve rod and a lower valve rod are respectively arranged at the upper end and the lower end of the valve body, a rotatable butterfly plate is arranged in a central hole of the valve body, the upper end and the lower end of the butterfly plate are respectively connected with the upper valve rod and the lower valve rod, two threaded holes are formed in one side of the valve body assembly and communicated with the flow channel, and screws are arranged on the two threaded holes or are respectively connected with external equipment through pipelines; the driving assembly comprises a transmission case, an operating hand wheel and a transmission device, the transmission device is arranged in the transmission case and used for driving the upper valve rod to rotate so as to realize the opening and closing of the fire-fighting signal butterfly valve, and the operating hand wheel is connected with the transmission device to drive the transmission device to act. The utility model discloses be provided with two screw holes in one side of valve body, can directly take over on the valve body and say to go out to connect the manometer or connect other external equipment, need not trompil and external manometer on the pipeline.
Description
Technical Field
The utility model relates to a fire control field, concretely relates to fire control signal butterfly valve.
Background
The signal butterfly valve is suitable for system pipelines of petroleum, chemical industry, food, medicine, papermaking, water and electricity, ships, water supply and drainage, smelting, energy and the like. The device can be used as a regulating and throttling device on various corrosive and non-corrosive gas, liquid, semi-fluid and solid powder pipelines and containers. The valve is particularly and widely applied to a fire-fighting system of a high-rise building and other pipeline systems needing to display the opening and closing states of the valve. The signal butterfly valve can be used for replacing pipelines using a gate valve, a check valve (a spherical stop valve), a stop valve, a plug valve, a rubber tube valve and a diaphragm valve, particularly high-rise building fire-fighting systems and pipeline systems needing to display the opening and closing states of the valves.
The working principle of the signal butterfly valve is as follows: 1. the signal butterfly valve is driven by the worm gear and worm transmission device to rotate the rotating shaft and the butterfly plate to realize opening and closing and flow control. 2. And a hand wheel of the worm gear transmission device is rotated to enable the butterfly plate to achieve the purposes of opening and closing and flow regulation, and the hand wheel rotates clockwise to close the valve.
The butterfly plate of the signal butterfly valve is driven by the valve rod, and the common design at present is that a whole valve rod passes through the shaft hole in the middle of the butterfly plate to drive the butterfly plate to rotate, and the valve rod of this form is longer in length, and it is more troublesome to assemble, and still need to reserve in the butterfly plate and have the shaft hole that runs through from top to bottom.
The pressure detection of the upstream and downstream of the existing signal butterfly valve is realized by respectively opening holes on pipelines of the upstream and downstream of the signal butterfly valve and externally connecting pressure detection equipment.
SUMMERY OF THE UTILITY MODEL
We provide a new fire-fighting signal butterfly valve that does not require additional openings in the piping upstream and downstream when the fire-fighting signal butterfly valve is assembled to install a pressure gauge. The specific scheme is as follows:
a fire signal butterfly valve comprising a valve body assembly and a drive assembly;
the fire-fighting signal butterfly valve comprises a valve body, wherein the upper end and the lower end of the valve body are respectively provided with a valve rod hole, the upper valve rod hole and the lower valve rod hole are respectively provided with an upper valve rod and a lower valve rod, bearings are sleeved on the outer diameters of the upper valve rod and the lower valve rod, a rotatable butterfly plate is arranged in a flow channel in the center of the valve body, the upper end and the lower end of the butterfly plate are respectively connected with the upper valve rod and the lower valve rod, the connecting line of the upper valve rod and the lower valve rod of the butterfly plate is used for central circumferential rotation and axial limiting, one side of the valve body assembly is provided with two threaded holes which are communicated with the flow channel, the two threaded holes are positioned on the two sides of the butterfly plate in a closed state, and the two threaded;
the driving assembly comprises a transmission case, an operating hand wheel and a transmission device, the transmission device is arranged in the transmission case and used for driving the upper valve rod to rotate so as to realize the opening and closing of the fire-fighting signal butterfly valve, and the operating hand wheel is connected with the transmission device to drive the transmission device to act.
Furthermore, O-shaped sealing rings are further arranged at one ends, close to the butterfly plate, of the upper valve rod and the lower valve rod.
Further, the external equipment is a pressure gauge.
Further, the diameter of the threaded hole is 3/8 'or 1/2' pipe threads.
The utility model discloses be provided with two screw holes in one side of valve body, these two screw holes link to each other with the centre bore of fire control signal butterfly valve butterfly plate both sides under the off-state respectively, have had these two screw holes, can directly take over on the valve body and say to go out to connect the manometer or connect other external equipment, need not trompil and external manometer on the pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1-2 are schematic views of a fire-fighting signal butterfly valve according to an embodiment of the present invention;
fig. 3 is a sectional view taken along a-a in fig. 2.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
The utility model provides a fire-fighting signal butterfly valve, as shown in figures 1-3, which mainly comprises a valve body component 20 and a driving component 30;
the valve body assembly 20 comprises a valve body 4, the upper end and the lower end of the valve body 4 are respectively provided with a valve rod hole, the upper valve rod 2 and the lower valve rod 7 are respectively arranged in the upper valve rod hole and the lower valve rod hole, the outer diameters of the upper valve rod 2 and the lower valve rod 7 are respectively sleeved with an upper bearing 1 and a lower bearing 6, a rotatable butterfly plate 5 is arranged in a flow passage 12 at the center of the valve body 4, the upper end and the lower end of the butterfly plate 5 are respectively connected with an upper valve rod 2 and a lower valve rod 7, the connecting line of the upper valve rod 2 and the lower valve rod 7 of the butterfly plate 5 is used as the center to circumferentially rotate and axially limit, one side of the valve body component 20 is provided with two threaded holes 9, the two threaded holes 9 are communicated with the flow channel 12, the two threaded holes 9 are respectively positioned at two sides of the butterfly plate 5 when the fire-fighting signal butterfly valve is in a closed state, and the two threaded holes 9 are respectively provided with screws or are respectively connected with external equipment through pipelines;
the driving assembly 30 comprises a transmission case 10, an operating hand wheel 11 and a transmission device, the transmission device is arranged inside the transmission case 10 and used for driving the upper valve rod 2 to rotate so as to realize the opening and closing of the fire signal butterfly valve, and the operating hand wheel 11 is connected with the transmission device to drive the transmission device to act.
In an alternative embodiment, the ends of the upper valve rod 2 and the lower valve rod 7 close to the butterfly plate 5 are respectively provided with an O-shaped sealing ring 3.
Preferably, the threaded hole 9 has a tube thread with an aperture of 3/8 "or 1/2".
And a dustproof cover 8 is also arranged at the tail end of the lower valve rod 7 to prevent dust from entering and ensure sealing.
In an optional embodiment, the external device is a pressure gauge.
The utility model has the unique character that;
(1) 2 independent valve rods are connected to the upper end and the lower end of the butterfly plate, the driving component 30 only needs to drive the upper valve rod 2 to drive the butterfly plate to rotate, the lower valve rod 7 at the lower end serves as a driven rod, and the valve rods do not need to penetrate through the butterfly plate, so that more design forms of the butterfly plate are possible;
(2) be provided with two screw holes 9 in one side of valve body, these two screw holes 9 are in the both sides runner 12 of fire control signal butterfly valve butterfly plate 5 under the closure state respectively, have had these two screw holes, can directly take over the pipeline on the valve body and go out to connect the manometer or connect other external equipment, need not trompil and external manometer on the pipeline, with numerous equipment integration install on the signal butterfly valve can.
The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (4)
1. A fire-fighting signal butterfly valve is characterized by comprising a valve body assembly and a driving assembly;
the fire-fighting signal butterfly valve comprises a valve body, wherein the upper end and the lower end of the valve body are respectively provided with a valve rod hole, the upper valve rod hole and the lower valve rod hole are respectively provided with an upper valve rod and a lower valve rod, bearings are sleeved on the outer diameters of the upper valve rod and the lower valve rod, a rotatable butterfly plate is arranged in a flow channel in the center of the valve body, the upper end and the lower end of the butterfly plate are respectively connected with the upper valve rod and the lower valve rod, the connecting line of the upper valve rod and the lower valve rod of the butterfly plate is used for central circumferential rotation and axial limiting, one side of the valve body assembly is provided with two threaded holes which are communicated with the flow channel, the two threaded holes are positioned on the two sides of the butterfly plate in a closed state, and the two threaded;
the driving assembly comprises a transmission case, an operating hand wheel and a transmission device, the transmission device is arranged in the transmission case and used for driving the upper valve rod to rotate so as to realize the opening and closing of the fire-fighting signal butterfly valve, and the operating hand wheel is connected with the transmission device to drive the transmission device to act.
2. A fire protection signal butterfly valve as defined in claim 1 wherein the upper and lower valve stems are further provided with O-rings at the ends adjacent the butterfly plate.
3. A fire-fighting signal butterfly valve as recited in claim 1, wherein the external device is a pressure gauge.
4. A fire protection signal butterfly valve as claimed in claim 1 wherein the threaded hole has a pipe thread with an aperture of either 3/8 "or 1/2".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886889.6U CN210423738U (en) | 2019-06-13 | 2019-06-13 | Fire-fighting signal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886889.6U CN210423738U (en) | 2019-06-13 | 2019-06-13 | Fire-fighting signal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423738U true CN210423738U (en) | 2020-04-28 |
Family
ID=70375172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920886889.6U Active CN210423738U (en) | 2019-06-13 | 2019-06-13 | Fire-fighting signal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423738U (en) |
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2019
- 2019-06-13 CN CN201920886889.6U patent/CN210423738U/en active Active
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