CN210890183U

CN210890183U - Semi-lining flange butterfly valve

Info

Publication number: CN210890183U
Application number: CN201922015940.9U
Authority: CN
Inventors: 郝艳辉
Original assignee: Tianjin Wades Valve Co ltd
Current assignee: Tianjin Wades Valve Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-06-30
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a half lining flange butterfly valve, which comprises a valve body, first cavity has been seted up to the valve body top, be provided with the spliced pole in the first cavity, spliced pole lower extreme fixedly connected with gear, the spliced pole below is provided with first spout, be provided with two transmission bars in the first spout, the transmission bar is close to gear one side and is provided with the rack, and the rack meshes with the gear mutually, the inside pipeline that is equipped with of valve body, be equipped with three baffles, three in the pipeline baffle looks coincide, middle one baffle and valve body fixed connection, both sides the baffle passes through axis of rotation and centre the baffle bottom is rotated and is connected, both sides the baffle respectively with two transmission bar fixed connection. Through the cooperation action of spliced pole, gear, drive strip, baffle, can realize the rotation of baffle, hinder the fluid flow, the user can adjust the flow size as required, and the carousel rotational resistance is less, can not produce the condition that is difficult to open the valve.

Description

Semi-lining flange butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to half lining flange butterfly valve.

Background

The butterfly valve is also called a flap valve, is a valve for opening and closing a pipeline, and plays a role in cutting off and throttling the pipeline. In the prior art, a wafer-type half-lining tetrafluoro turbine butterfly valve disclosed in patent No. CN 205956414U 2 includes a "turbine" which is spatially staggered by 90 degrees from the axis of a scroll rod and has an opposite rotation direction of … … ", and the flow regulation is realized by rotating a disk plate, but the disk plate has a large rotation resistance due to the fluid pressure in the pipe, so that it is very laborious to open the valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, and provides a half lining flange butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the semi-lining flange butterfly valve comprises a valve body, wherein a first cavity is formed above the valve body, a connecting column is arranged in the first cavity, a turntable is arranged at the upper end of the connecting column, a gear is fixedly connected to the lower end of the connecting column, a first chute is arranged below the connecting column, the lower end of the connecting column extends into the first chute, two transmission bars are arranged in the first chute and are in sliding connection with the first chute, a rack is arranged on one side, close to the gear, of each transmission bar, and the racks are meshed with the gear;

the pipeline is arranged inside the valve body, a sealing ring is padded on the wall of the pipeline, three baffles are arranged in the pipeline and overlapped with each other, one baffle is fixedly connected with the valve body in the middle, two sides of the baffles are rotatably connected with the bottom end of the baffle through rotating shafts, and the two sides of the baffles are fixedly connected with the two transmission strips respectively.

Preferably, the three baffles are in a fan shape, the angle of the fan shape is 120-130 degrees, the middle position of the upper end of each baffle is fixedly connected with the transmission strip, and the transmission strip is in a quarter-ring shape.

Preferably, the three baffles are provided with water through openings which are communicated with each other.

Preferably, the baffle is close to adjacent baffle one side and is provided with the second cavity, the second cavity is ring shape, the second cavity is provided with the movable plate, movable plate and second cavity sliding connection, the movable plate is located the limbers surface, the movable plate size is greater than the limbers size, the movable plate surface is provided with the screens device.

Preferably, the screens device comprises card post, spring, the second spout has been seted up to the corresponding card post position of movable plate, card post and second spout sliding connection, with card post bottom is through spring and second spout springing joint.

Preferably, the top end of the clamping column is arc-shaped, a concave hole is formed in the surface of the adjacent baffle corresponding to the clamping column, the diameter of the concave hole is equal to that of the clamping column, and the concave hole is arc-shaped.

The utility model discloses possess following advantage:

1. through the matching action of the connecting column, the gear, the transmission strip and the baffle, the rotation of the baffle can be realized, the flow of fluid is blocked, and a user can adjust the flow or close the valve as required;

2. by arranging the water through hole, under the condition that the valve is completely opened, fluid can pass through the water through hole, the flow of the fluid is increased, and when the valve is closed, the water through hole is blocked, so that the pipeline is completely sealed, and the fluid is prevented from flowing through;

3. the utility model discloses can realize controlling intraductal fluid flow through rotating the carousel, the user can adjust the flow as required, and the carousel rotational resistance is less, can not produce the condition that is difficult to open the valve.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the baffle structure of the present invention;

fig. 3 is a schematic structural view of the clamping device of the present invention.

In the figure: the valve comprises a valve body 1, a connecting column 2, a first cavity 3, a gear 4, a transmission strip 5, a water through opening 6, a baffle 7, a first sliding groove 8, a sealing ring 9, a pipeline 10, a movable sheet 11, a clamping device 12, a clamping column 121, a concave hole 122, a second sliding groove 123, a spring 124 and a second cavity 13.

Detailed Description

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.

Referring to fig. 1-3, the semi-lining flange butterfly valve comprises a valve body 1, wherein a first cavity 3 is formed above the valve body 1, a connecting column 2 is arranged in the first cavity 3, a rotary table is arranged at the upper end of the connecting column 2, a gear 4 is fixedly connected to the lower end of the connecting column 2, a first chute 8 is arranged below the connecting column 2, the lower end of the connecting column 2 extends into the first chute 8, two transmission bars 5 are arranged in the first chute 8, the transmission bars 5 are slidably connected with the first chute 8, a rack is arranged on one side, close to the gear 4, of each transmission bar 5, and the rack is meshed with the gear;

a pipeline 10 is arranged in the valve body 1, a sealing ring 9 is padded on the wall of the pipeline 10, three baffle plates 7 are arranged in the pipeline 10, the three baffle plates 7 are fan-shaped, the angle of the fan-shaped baffle plates is 120 degrees and 130 degrees, the middle position of the upper end of each baffle plate 7 is fixedly connected with a transmission strip 5, and the transmission strip 5 is in a quarter-ring shape;

three baffles 7 are overlapped, a baffle 7 in the middle is fixedly connected with the valve body 1, the baffles 7 on two sides are rotatably connected with the bottom end of the middle baffle 7 through rotating shafts, and the baffles 7 on two sides are respectively fixedly connected with the two transmission bars 5.

Referring to fig. 2, be provided with water gap 6 on three baffles 7, be linked together between the water gap 6, baffle 7 is close to adjacent baffle 7 one side and is provided with second cavity 13, and second cavity 13 is ring shape, and second cavity 13 is provided with movable piece 11, and

movable piece

11 and 13 sliding connection of second cavity, movable piece 11 are located water gap 6 surface, and 11 sizes of movable piece are greater than 6 sizes of water gap, and 11 surfaces of movable piece are provided with screens device 12, and the effect of water gap 6 lies in: when the valve is fully open, the fluid flow in the tube can be increased.

Referring to fig. 3, the clamping device 12 is composed of a clamping column 121 and a spring 124, the top end of the clamping column 121 is arc-shaped, the movable plate 11 corresponds to the position of the clamping column 121 and is provided with a second sliding groove 123, the clamping column 121 is slidably connected with the second sliding groove 123, the bottom end of the clamping column 121 is elastically connected with the second sliding groove 123 through the spring 124, and the clamping device 12 is used for: when the valve is closed, the blocking device 12 drives the movable piece 11 to move when the baffle 7 rotates, so that the water through opening 6 is closed, and fluid is blocked from passing through.

Concave holes 122 are formed in the surfaces of the adjacent baffles 7 corresponding to the positions of the clamping columns 121, the diameters of the concave holes 122 are equal to the diameters of the clamping columns 121, and the concave holes 122 are arc-shaped.

The gear 4 is driven to rotate by rotating the turntable, the gear 4 drives the two transmission strips 5 to rotate, the transmission strips 5 drive the two side baffles 7 to rotate, the flow of fluid is controlled, when the three baffles 7 are overlapped together, the water through opening 6 is communicated, the fluid can flow through, when the three baffles 7 are completely closed, and when the valve is closed, the baffles 7 drive the movable piece 11 to move through the clamping device 12 in the motion process, the water through opening 6 is blocked, and the pipeline 10 is completely closed.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The semi-lining flange butterfly valve comprises a valve body (1) and is characterized in that a first cavity (3) is formed above the valve body (1), a connecting column (2) is arranged in the first cavity (3), a rotary disc is arranged at the upper end of the connecting column (2), a gear (4) is fixedly connected to the lower end of the connecting column (2), a first sliding groove (8) is formed below the connecting column (2), the lower end of the connecting column (2) extends into the first sliding groove (8), two transmission bars (5) are arranged in the first sliding groove (8), the transmission bars (5) are in sliding connection with the first sliding groove (8), a rack is arranged on one side, close to the gear (4), of each transmission bar (5), and the rack is meshed with the gear (4);

the pipeline (10) is arranged inside the valve body (1), a sealing ring (9) is padded on the wall of the pipeline (10), three baffles (7) and three baffles (7) are arranged in the pipeline (10), the baffles (7) are overlapped and one in the middle, the baffles (7) are fixedly connected with the valve body (1) and two sides, the baffles (7) are rotatably connected with the bottom end of the baffle (7) in the middle through rotating shafts, and the baffles (7) are fixedly connected with the two transmission bars (5) respectively.

2. The semi-lining flange butterfly valve according to claim 1, wherein three said baffles (7) are fan-shaped, the angle of the fan-shaped is 120-130 °, the middle position of the upper end of the baffle (7) is fixedly connected with the transmission bar (5), and the transmission bar (5) is a quarter ring shape.

3. The half-lining flange butterfly valve according to claim 1, wherein three baffles (7) are provided with water through openings (6), and the water through openings (6) are communicated with each other.

4. The half-lining flange butterfly valve according to claim 3, wherein a second cavity (13) is formed in one side, close to the adjacent baffle (7), of the baffle (7), the second cavity (13) is in a circular ring shape, a movable piece (11) is arranged in the second cavity (13), the movable piece (11) is in sliding connection with the second cavity (13), the movable piece (11) is located on the surface of the water through opening (6), the size of the movable piece (11) is larger than that of the water through opening (6), and a clamping device (12) is arranged on the surface of the movable piece (11).

5. The half-lining flange butterfly valve according to claim 4, wherein the locking device (12) is composed of a locking post (121) and a spring (124), the movable plate (11) is provided with a second sliding groove (123) corresponding to the locking post (121), the locking post (121) is slidably connected with the second sliding groove (123), and is elastically connected with the bottom end of the locking post (121) through the spring (124) and the second sliding groove (123).

6. The semi-lining flange butterfly valve according to claim 5, wherein the top end of the clamping column (121) is arc-shaped, a concave hole (122) is formed in the surface of the adjacent baffle (7) corresponding to the position of the clamping column (121), the diameter of the concave hole (122) is equal to that of the clamping column (121), and the concave hole (122) is arc-shaped.