CN220566593U - Novel pneumatic ventilation butterfly valve - Google Patents

Abstract

The utility model discloses a novel pneumatic ventilation butterfly valve, which comprises a valve shell, wherein an upper gland and a lower gland are fixedly arranged at the top end of the valve shell and the bottom end of a valve cover, bearing supports are arranged at the opposite ends of the two upper and lower glands, a bearing fixed cover plate is arranged at the bottom end of one bearing support, the upper and lower glands are arranged at the top end of the other bearing support, a valve plate is arranged in the valve shell, an upper valve rod penetrating the bearing support and a lower valve rod penetrating the bearing support are respectively arranged at the two ends of the valve plate.

Description

Novel pneumatic ventilation butterfly valve

Technical Field

The utility model relates to the technical field of pneumatic ventilation butterfly valves, in particular to a novel pneumatic ventilation butterfly valve.

Background

The pneumatic ventilation butterfly valve is mainly used for cutting off the effect of fast speed, distributing and changing the medium flow direction in the pipeline, the pneumatic butterfly valve drives the valve rod to control the disc-shaped butterfly plate to rotate around the axis through compressed air as a power source, the valve is turned 90 degrees from the initial position and then is turned on to off or turned on to off, otherwise is turned on to off or turned on to off, and the pneumatic ventilation butterfly valve is widely applied to dust-containing cold air or hot air pipelines of ventilation and environment protection engineering in the industries of chemical industry, building materials, power stations, glass and the like.

However, the conventional pneumatic ventilation butterfly valve has the following disadvantages:

the traditional pneumatic ventilation butterfly valve only controls whether the gas flows singly, but cannot adjust the flow quantity and the flow direction of the gas, so that the use flexibility of the pneumatic ventilation butterfly valve is reduced.

Disclosure of Invention

The utility model aims to provide a novel pneumatic ventilation butterfly valve, which solves the problems that the traditional pneumatic ventilation butterfly valve provided in the background art only controls whether gas flows singly, but cannot adjust the flow quantity and the flow direction of the gas, and the use flexibility of the pneumatic ventilation butterfly valve is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel pneumatic ventilation butterfly valve, includes the valve casing, the equal fixed mounting in top of valve casing and the bottom of valve gap has upper and lower gland, two bearing bracket is all installed to the one end that upper and lower gland deviates from mutually, one of them bearing bracket's bottom all installs the fixed apron of bearing, another bearing bracket's top is installed upper and lower gland, the internally mounted of valve casing has the valve plate, the upper valve rod that runs through bearing bracket and the lower valve rod that runs through bearing bracket are installed respectively at the both ends of valve plate, install the adjustment mechanism who is located valve plate one side on the valve casing, adjustment mechanism includes foraminiferous ventilating board and a plurality of guide plate, and valve plate edge and valve casing are originally contactless, leave little clearance, can allow certain leakage.

Preferably, the inside rotation of foraminiferous ventilating board is connected with the rotation axis, the top fixed mounting of rotation axis has the handle that extends to the external world, the fixed surface of rotation axis installs a plurality of initiative umbrella form helical tooth, one side of foraminiferous ventilating board inner wall all rotates and is connected with a plurality of driven umbrella form helical tooth, a plurality of one side of deflector all rotates with one side of foraminiferous ventilating board to be connected, a plurality of the equal fixed mounting in middle part of driven umbrella form helical tooth has the lead screw that extends to the external world, a plurality of equal threaded connection in surface of lead screw has the promotion shell, a plurality of the movable groove has been all offered to the middle part of deflector, a plurality of equal sliding connection in inside of movable groove has the movable block, a plurality of the movable block is kept away from one side of deflector and is installed the joint, a plurality of the one end that the movable block was kept away from respectively with a plurality of promotion shell is adjacent one side fixed connection, a plurality of initiative umbrella form helical tooth respectively with a plurality of bevel tooth meshing connection, the butterfly valve uses the hand to rotate the handle, drives the rotation axis and rotates the handle along with the equal fixed mounting of lead screw that extends to the external lead screw, a plurality of equal threaded connection in surface of lead screw of equal threaded connection of surface of lead screw has the promotion shell, a plurality of movable block the equal sliding connection of the movable block has the movable block in the movable block, a plurality of the movable block has the movable block along the same direction.

Preferably, the bottom of foraminiferous ventilating board and valve casing fixed connection, adjustment mechanism installs in the valve casing through foraminiferous ventilating board.

Preferably, the diameter of the valve plate is 504mm.

Preferably, the outer diameters of the two bearing brackets are 120mm, and the inner diameters of the two bearing brackets are 95+/-1.0 mm.

Compared with the prior art, the utility model has the beneficial effects that: through setting up adjustment mechanism, rotation axis pivoted in-process drives initiative umbelliform skewed tooth and carries out synchronous rotation, and driven umbelliform skewed tooth drives the lead screw and rotates the back, promotes the shell and promotes movable block from one side for the deflector takes place the angle deflection along foraminiferous ventilating board, with this to the flow of gas and the flow direction of gas adjust, has improved the flexibility ratio that pneumatic ventilation butterfly valve used.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic diagram of the structure of the present utility model;

fig. 4 is a schematic structural view of the present utility model.

In the figure: 1. a valve plate; 2. an adjusting mechanism; 201. a perforated ventilation board; 202. a deflector; 203. a movable block; 204. pushing the shell; 205. a screw rod; 206. a handle; 207. a rotation shaft; 208. active umbrella-shaped helical teeth; 209. driven umbrella-shaped helical teeth; 210. a movable groove; 211. a joint; 3. an upper valve rod; 4. a lower valve rod; 5. a bearing support; 6. a bearing fixing cover plate; 7. an upper gland and a lower gland; 8. a valve housing.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-4, the utility model provides a novel pneumatic ventilation butterfly valve, which comprises a valve casing 8, wherein an upper gland 7 and a lower gland 7 are fixedly arranged at the top end of the valve casing 8 and the bottom end of a valve cover 9, bearing supports 5 are arranged at the opposite ends of the two upper gland 7 and the lower gland 7, a bearing fixing cover plate 6 is arranged at the bottom end of one bearing support 5, the upper gland 7 and the lower gland 7 are arranged at the top end of the other bearing support 5, a valve plate 1 is arranged in the valve casing 8, an upper valve rod 3 penetrating through the bearing support 5 and a lower valve rod 4 penetrating through the bearing support 5 are respectively arranged at two ends of the valve plate 1, an adjusting mechanism 2 positioned at one side of the valve plate 1 is arranged on the valve casing 8, the adjusting mechanism 2 comprises a ventilation plate 201 with holes and a plurality of guide plates 202, the edge of the valve plate 1 is in no contact with the valve casing 8, a tiny gap is reserved, and a certain leakage amount can be allowed.

The inside of the perforated ventilation plate 201 is rotationally connected with a rotating shaft 207, a handle 206 extending to the outside is fixedly arranged at the top end of the rotating shaft 207, a plurality of driving umbrella-shaped helical teeth 208 are fixedly arranged on the surface of the rotating shaft 207, a plurality of driven umbrella-shaped helical teeth 209 are rotationally connected to one side of the inner wall of the perforated ventilation plate 201, a plurality of guide plates 202 are rotationally connected to one side of the perforated ventilation plate 201, a screw rod 205 extending to the outside is fixedly arranged in the middle of each of the plurality of driven umbrella-shaped helical teeth 209, a pushing shell 204 is in threaded connection with the surface of each of the plurality of screw rods 205, movable grooves 210 are formed in the middle of each of the plurality of guide plates 202, movable blocks 203 are slidably connected in the inner parts of the plurality of movable grooves 210, joints 211 are arranged on one side of each of the plurality of movable blocks 203, which is far away from the guide plates 202, one ends of the plurality of joints 211 are fixedly connected with one sides of the plurality of pushing shells 204, which are adjacent to the plurality of pushing shells 204 respectively, the driving umbrella-shaped helical teeth 208 are respectively meshed with the driven umbrella-shaped helical teeth 209, a butterfly valve user rotates the handle 206 by using the hands, the handle 206 drives the rotating shaft 207 to synchronously rotate, the driving umbrella-shaped helical teeth 208 on the rotating shaft 207 synchronously rotate along with the rotating shaft 207, the driving umbrella-shaped helical teeth 208 are contacted with the driven umbrella-shaped helical teeth 209, the driven umbrella-shaped helical teeth 209 rotate under friction, the driven umbrella-shaped helical teeth 209 drive the screw rod 205 to rotate, the threads on the surface of the screw rod 205 are matched with the threads on the inner wall of the pushing shell 204, the pushing shell 204 is limited by the joint 211, so that the pushing shell 204 slides along the screw rod 205, the pushing shell 204 pushes the movable block 203 from one side through the joint 211, the movable block 203 slides along the movable groove 210, the guide plate 202 slides along the ventilation plate 201 with holes, thereby adjusting the flow direction and the flow quantity of the gas flowing in the pneumatic ventilation butterfly valve.

The bottom end of the perforated ventilation plate 201 is fixedly connected with the valve housing 8, and the adjusting mechanism 2 is installed in the valve housing 8 through the perforated ventilation plate 201.

The diameter of the valve plate 1 is 504mm, the outer diameters of the two bearing brackets 5 are 120mm, and the inner diameters of the two bearing brackets 5 are 95+/-1.0 mm.

When the embodiment of the application is used, the following steps are adopted: the pneumatic ventilation butterfly valve is installed on the gas pipeline, whether the gas on the gas pipeline circulates or not is controlled, the butterfly valve user rotates the handle 206 by using the hand, the handle 206 drives the rotation shaft 207 to synchronously rotate, the driving umbrella-shaped helical teeth 208 on the rotation shaft 207 synchronously rotate along with the rotation shaft 207, the driving umbrella-shaped helical teeth 208 are contacted with the driven umbrella-shaped helical teeth 209, the driven umbrella-shaped helical teeth 209 are subjected to friction force to rotate, the driven umbrella-shaped helical teeth 209 drive the screw rod 205 to rotate, the threads on the surface of the screw rod 205 are matched with the threads on the inner wall of the pushing shell 204, the pushing shell 204 is limited by the joint 211, so that the pushing shell 204 slides along the screw rod 205, the pushing shell 204 pushes the movable block 203 from one side through the joint 211, the movable block 203 slides along the movable groove 210, the guide plate 202 slides along the ventilation plate 201 with holes, and the flow direction and the gas flux of the gas flowing in the pneumatic ventilation are adjusted.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. Novel pneumatic ventilation butterfly valve, including valve casing (8), its characterized in that: the utility model discloses a valve casing, including valve casing (8), valve plate (1), adjustment mechanism (2) that is located valve plate (1) one side are installed on valve casing (8), upper and lower gland (7) are all fixed to the top of valve casing (8) and the bottom of valve gap (9), two bearing bracket (5) are all installed to the one end that upper and lower gland (7) deviate from mutually, one of them bearing bracket (5) are all installed to the bottom, another bearing bracket (5) are installed on the top of bearing bracket (5), valve plate (8) internally mounted has valve plate (1), upper valve rod (3) and lower valve rod (4) that runs through bearing bracket (5) are installed respectively at the both ends of valve plate (1), adjustment mechanism (2) are including foraminiferous air deflector (201) and a plurality of guide plate (202).

2. The novel pneumatic ventilation butterfly valve of claim 1, wherein: the inside rotation of foraminiferous ventilation board (201) is connected with rotation axis (207), the top fixed mounting of rotation axis (207) has handle (206) that extends to the external world, the fixed surface of rotation axis (207) installs a plurality of initiative umbrella form helical tooth (208), the one side of foraminiferous ventilation board (201) inner wall all rotates and is connected with a plurality of driven umbrella form helical tooth (209), a plurality of one side of deflector (202) all rotates with one side of foraminiferous ventilation board (201) to be connected, a plurality of the equal fixed mounting in middle part of driven umbrella form helical tooth (209) has lead screw (205) that extends to the external world, a plurality of equal threaded connection in surface of lead screw (205) has promotion shell (204), a plurality of movable groove (210) have all been seted up at the middle part of deflector (202), a plurality of the inside of movable groove (210) all sliding connection has movable block (203), a plurality of one side that deflector (202) were kept away from to the movable block (203) all installs joint (211), a plurality of joint (211) one side that movable block (203) kept away from the movable block (203) is rotated with one side of foraminiferous ventilation board (201) is connected with a plurality of adjacent umbrella form helical tooth (208) respectively.

3. The novel pneumatic ventilation butterfly valve of claim 1, wherein: the bottom end of the ventilation board (201) with holes is fixedly connected with the valve casing (8).

4. The novel pneumatic ventilation butterfly valve of claim 1, wherein: the diameter of the valve plate (1) is 504mm.

5. The novel pneumatic ventilation butterfly valve of claim 1, wherein: the outer diameters of the two bearing supports (5) are 120mm, and the inner diameters of the two bearing supports (5) are 95+/-1.0 mm.