CN220470643U - Flange type turbine butterfly valve - Google Patents

Abstract

The utility model discloses a flange type turbine butterfly valve, which belongs to the technical field of valves and comprises a valve body, wherein a connecting pipe is fixedly connected to the valve body, connecting flanges are fixedly connected to both ends of the valve body, a rotating shaft is rotationally connected to the connecting pipe, a valve plate is fixedly connected to the rotating shaft, the valve plate is rotationally connected to the valve body, a fixing box is fixedly connected to the connecting pipe, a worm wheel is rotationally connected to the bottom wall of the fixing box, the bottom end of the worm wheel is fixedly connected with the top end of the rotating shaft, a worm is rotationally connected to one side wall of the fixing box, the worm is meshed with the worm wheel, an anti-rotation mechanism is arranged on the worm and used for preventing the worm from being mistakenly turned on or off by mistaken touch rotation of the butterfly valve; the butterfly valve aims at solving the problems that the existing butterfly valve worm in the prior art is usually connected with a handle, and the handle is exposed and is easy to be touched by mistake, so that the butterfly valve is easy to be opened and closed by mistake.

Description

Flange type turbine butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a flange type turbine butterfly valve.

Background

The turbine flange butterfly valve (also called turbine flange flap valve) generally adopts a three-eccentric multilayer metal hard sealing structure, and is used for metallurgical, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature less than or equal to 425 ℃ and used for adjusting flow and carrying flow cut-off bodies.

At present, a common flange type turbine butterfly valve usually adopts a rotary mode to enable a worm to rotate so as to control opening and closing of the butterfly valve, but the existing butterfly valve worm is usually connected with a handle for use, and the handle is exposed and is easy to be touched by mistake, so that the butterfly valve is easy to be opened and closed by mistake.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a flange type turbine butterfly valve, which aims to solve the problems that the prior butterfly valve worm is usually connected with a handle for use, the handle is exposed outside and is easy to be touched by mistake, and thus the butterfly valve is easy to be opened and closed by mistake.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a flange formula turbine butterfly valve, includes the valve body, fixedly connected with connecting pipe on the valve body, the equal fixedly connected with flange in both ends of valve body, the internal rotation of connecting pipe is connected with the axis of rotation, fixedly connected with valve plate in the axis of rotation, and the valve plate rotates to be connected in the valve body, fixedly connected with fixed box on the connecting pipe, the diapire of fixed box rotates to be connected with the worm wheel, and the bottom of worm wheel and the top fixed connection of axis of rotation, a side wall rotation of fixed box is connected with the worm, and the worm meshes with the worm wheel mutually, be provided with anti-rotation mechanism on the worm, anti-rotation mechanism is used for preventing the worm by the mistake to touch and rotate and lead to butterfly valve error switch.

As a preferable scheme of the utility model, the anti-rotation mechanism comprises a rotating rod, the rotating rod is in sliding connection with a worm, the outer surface of the rotating rod is fixedly connected with a rotary handle, a spring is arranged in the worm and corresponds to the rotating rod, a bayonet is cut on the worm, a clamping strip is fixedly connected to the rotating rod, and the clamping strip is matched with the bayonet.

As a preferable scheme of the utility model, a limit rod is fixedly connected in the worm, a spring is sleeved on the outer surface of the limit rod, and the rotating rod is connected to the limit rod in a sliding manner.

As a preferable scheme of the utility model, the valve plate is fixedly connected with an inner sealing gasket, and the inner sealing gasket is contacted with the inner wall of the valve body.

As a preferable scheme of the utility model, the two connecting flanges are respectively provided with a mounting groove, and the two mounting grooves are respectively fixedly connected with a connecting sealing gasket.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) Install the valve body on the pipeline through two flange, when flange formula turbine butterfly valve is controlling the fluid in the pipeline, rotate worm wheel at fixed box through preventing rotating the mechanism and make the worm wheel rotate, the worm wheel drives the axis of rotation and rotates in the connecting pipe, the axis of rotation makes the valve plate at the valve body internal rotation, thereby realize flange formula turbine butterfly valve's switch, in this scheme, when opening and shutting to flange formula turbine butterfly valve, need adopt the mode that presses to make prevent rotating the mechanism and be connected with the worm, thereby just can control flange formula turbine butterfly valve's switch, after flange formula turbine butterfly valve switch is accomplished, prevent that the rotating the mechanism from kick-backing, can prevent that flange formula turbine butterfly valve from being touched the switch by mistake.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is a perspective view of a part of the structure in the present utility model.

The reference numerals in the figures illustrate:

1. a valve body; 2. a connecting pipe; 3. a connecting flange; 4. a rotating shaft; 5. a valve plate; 6. a fixed box; 7. a worm wheel; 8. a worm; 901. a rotating rod; 902. rotating the handle; 903. a spring; 904. a bayonet; 905. clamping strips; 10. a limit rod; 11. an inner gasket; 12. a mounting groove; 13. and connecting the sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-4, a flange turbine butterfly valve includes a valve body 1, a connecting pipe 2 is fixedly connected to the valve body 1, connecting flanges 3 are fixedly connected to two ends of the valve body 1, a rotating shaft 4 is rotatably connected to the connecting pipe 2, a valve plate 5 is fixedly connected to the rotating shaft 4, the valve plate 5 is rotatably connected to the valve body 1, a fixing box 6 is fixedly connected to the connecting pipe 2, a worm wheel 7 is rotatably connected to the bottom wall of the fixing box 6, the bottom end of the worm wheel 7 is fixedly connected to the top end of the rotating shaft 4, a worm 8 is rotatably connected to one side wall of the fixing box 6, the worm 8 is meshed with the worm wheel 7, an anti-rotation mechanism is arranged on the worm 8 and used for preventing the worm 8 from being mistakenly touched and rotated to cause the butterfly valve to be opened and closed mistakenly.

In this embodiment, install valve body 1 on the pipeline through two flange 3, when flange formula turbine butterfly valve is controlling the fluid in the pipeline, rotate worm 8 through anti-rotation mechanism and make worm wheel 7 rotate in fixed box 6, worm wheel 7 drives axis of rotation 4 and rotates in connecting pipe 2, axis of rotation 4 makes valve plate 5 rotate in valve body 1 to realize flange formula turbine butterfly valve's switch, after flange formula turbine butterfly valve switch is accomplished, anti-rotation mechanism can prevent that flange formula turbine butterfly valve from being touched the switch by mistake.

Specifically, the anti-rotation mechanism comprises a rotating rod 901, the rotating rod 901 is slidably inserted into a worm 8, the outer surface of the rotating rod 901 is fixedly connected with a rotary handle 902, a spring 903 is arranged in the worm 8, the spring 903 corresponds to the rotating rod 901, a bayonet 904 is cut on the worm 8, a clamping bar 905 is fixedly connected to the rotating rod 901, and the clamping bar 905 is matched with the bayonet 904.

In this embodiment, when controlling the flange type butterfly valve to switch, the staff rotates the clamping bar 905 on the rotating rod 901 to correspond to the bayonet 904, then pushes the rotating handle 902 to enable the rotating rod 901 to slide in the worm 8, enables the clamping bar 905 to be inserted into the bayonet 904, the rotating rod 901 compresses the spring 903, and enables the rotating rod 901 to drive the worm 8 to rotate through rotating the rotating handle 902, so that the switching of the flange type butterfly valve is achieved, after the switching of the flange type butterfly valve is completed, the staff releases the rotating handle 902, the elastic force generated by the spring 903 pushes the rotating rod 901, the clamping bar 905 moves out of the bayonet 904, the rotating rod 901 can only rotate in the worm 8, and the worm 8 cannot be driven to rotate to control the switching of the flange type butterfly valve, so that the switching of the flange type butterfly valve is prevented from being touched by mistake.

Specifically, a stop lever 10 is fixedly connected in the worm 8, a spring 903 is sleeved on the outer surface of the stop lever 10, and a rotating rod 901 is slidably connected to the stop lever 10.

In this embodiment, the stop lever 10 is used to limit the rotation lever 901, preventing the rotation lever 901 and the rotation knob 902 from falling off the worm 8.

Specifically, the valve plate 5 is fixedly connected with an inner sealing gasket 11, and the inner sealing gasket 11 contacts with the inner wall of the valve body 1.

In this embodiment, the inner gasket 11 is used to ensure the sealing effect between the valve plate 5 and the valve body 1, and prevent fluid leakage.

Specifically, the two connecting flanges 3 are provided with mounting grooves 12, and the two mounting grooves 12 are fixedly connected with connecting sealing gaskets 13.

In this embodiment, the two connection gaskets 13 in the two mounting grooves 12 can improve the sealing property when the two connection flanges 3 are connected to the pipe, and prevent the leakage of the fluid.

Working principle: when the flange type butterfly valve is used for controlling fluid in the pipeline, a worker rotates a clamping strip 905 on a rotating rod 901 to correspond to a bayonet 904, then pushes a rotating handle 902 to enable the rotating rod 901 to slide in a worm 8, the clamping strip 905 is inserted into the bayonet 904, the rotating rod 901 compresses a spring 903, the rotating rod 901 drives the worm 8 to rotate through rotating the rotating handle 902, and therefore switching of the flange type butterfly valve is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present utility model.

Claims (5)

1. Flange formula turbine butterfly valve, including valve body (1), its characterized in that: fixedly connected with connecting pipe (2) on valve body (1), equal fixedly connected with flange (3) in both ends of valve body (1), connecting pipe (2) internal rotation is connected with axis of rotation (4), fixedly connected with valve plate (5) on axis of rotation (4), and valve plate (5) rotate and connect in valve body (1), fixedly connected with fixed box (6) on connecting pipe (2), the diapire of fixed box (6) rotates and is connected with worm wheel (7), and the bottom of worm wheel (7) and the top fixed connection of axis of rotation (4), a side wall rotation of fixed box (6) is connected with worm (8), and worm (8) meshes with worm wheel (7), be provided with anti-rotation mechanism on worm (8), anti-rotation mechanism is used for preventing worm (8) by the mistake to touch and rotate and lead to butterfly valve error switch.

2. A flanged turbine butterfly valve according to claim 1, wherein: the anti-rotation mechanism comprises a rotating rod (901), the rotating rod (901) is connected in a worm (8) in a sliding mode, a rotating handle (902) is fixedly connected to the outer surface of the rotating rod (901), a spring (903) is arranged in the worm (8), the spring (903) corresponds to the rotating rod (901), a bayonet (904) is formed in the worm (8) in a cutting mode, a clamping strip (905) is fixedly connected to the rotating rod (901), and the clamping strip (905) is matched with the bayonet (904).

3. A flange-type turbine butterfly valve according to claim 2, wherein: the worm (8) is internally and fixedly connected with a limiting rod (10), a spring (903) is sleeved on the outer surface of the limiting rod (10), and the rotating rod (901) is slidably connected onto the limiting rod (10).

4. A flanged turbine butterfly valve according to claim 3, wherein: an inner sealing gasket (11) is fixedly connected to the valve plate (5), and the inner sealing gasket (11) is contacted with the inner wall of the valve body (1).

5. A flanged turbine butterfly valve according to claim 4, wherein: the two connecting flanges (3) are respectively provided with a mounting groove (12), and the two mounting grooves (12) are respectively fixedly connected with a connecting sealing gasket (13).