CN213541321U

CN213541321U - Automatic opening and closing butterfly valve

Info

Publication number: CN213541321U
Application number: CN202020458607.5U
Authority: CN
Inventors: 陈明
Original assignee: Shanghai Meride Valve Manufacturing Co ltd
Current assignee: Shanghai Meride Valve Manufacturing Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-06-25
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses an automatic start-stop butterfly valve relates to the valve field, and the leakproofness is unreliable when closing to current valve, and the problem of the easy jam of valve, now proposes following scheme, including the valve body, seted up the circulation passageway in the valve body, circulation passageway fit in has the valve plate, and the middle part of valve plate is equipped with the valve rod, has seted up in valve rod matched with through-hole and recess on the valve body, the one end that the valve rod passed the through-hole is connected with the control box, and the control box installs on the valve body, and the both sides of valve rod all are fixed with the net backup pad mutually perpendicular with the valve plate, and the cutter, two are all installed to net backup pad and two both sides of preventing stifled net board the net backup pad. The utility model discloses can realize that the three-layer is sealed when the valve is closed, the leakproofness is good, and the setting of cutter can be seen the jam that can avoid the valve, has guaranteed the normal use of valve, and it is good to prevent stifled, and the practicality is strong, and life is longer.

Description

Automatic opening and closing butterfly valve

Technical Field

The utility model relates to a valve field especially relates to an automatic open and close butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The device can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The existing automatic opening and closing butterfly valve is poor in sealing performance, when the automatic opening and closing butterfly valve is used for conveying fluid such as silt, large-volume objects in the fluid easily block the valve, normal use of the valve is affected, and the service life of the valve is short.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic open and close butterfly valve has solved the problem that the leakproofness is unreliable when current valve is closed, and the valve easily blocks up.

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

an automatic opening and closing butterfly valve comprises a valve body, wherein a circulation channel is formed in the valve body, a valve plate is matched in the circulation channel, a valve rod is arranged in the middle of the valve plate, a through hole and a groove which are matched with the valve rod are formed in the valve body, one end, penetrating through the through hole, of the valve rod is connected with a control box, the control box is installed on the valve body, grid supporting plates which are perpendicular to the valve plate are fixed on two sides of the valve rod, the two grid supporting plates are semicircular, two anti-blocking grid plates are connected between the two grid supporting plates and the valve plate, and cutters are installed on two sides of each grid supporting plate and two anti-blocking grid;

the utility model discloses a sealing device, including valve plate, net backup pad, valve plate, first elastic seal circle, the equal fixed mounting of outer wall of valve plate and net backup pad has the sealing washer, the outer wall both sides of sealing washer are equipped with two first elastic seal circle, install on the inner wall of circulation passageway with two first elastic seal circle matched with seals rand, and the inside of sealing rand is provided with the mounting groove, the inner wall of mounting groove is equipped with second elastic seal circle.

Preferably, two prevent stifled net board and be the arc, and become central symmetry about the valve rod.

Preferably, a cutter sanding ring matched with the cutter is installed in the flow channel.

Preferably, a motor and a motor controller are arranged in the control box, the motor controller is of a DATA-7311 type, an input end of the motor is electrically connected with an output end of the motor controller, and an output shaft of the motor is connected with the valve rod.

Preferably, a shaft sleeve is installed between the valve rod and the through hole and the groove which are matched with the valve rod, a third elastic sealing ring and a fourth elastic sealing ring are arranged on the inner side and the outer side of the shaft sleeve respectively, and the third elastic sealing ring and the fourth elastic sealing ring are made of elastic rubber materials.

Preferably, the grid size on the grid supporting plate is the same as the grid size on the anti-blocking grid plate.

Preferably, the cross section of the sealing clamping ring is a C-shaped surface, and the distance between the two first elastic sealing rings is matched with the width of the cross section of the sealing clamping ring, so that one side of the second elastic sealing ring is in contact with the outer wall of the sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the valve is closed, the two first elastic sealing rings are clamped at two sides of the sealing retainer ring, and the second elastic sealing ring in the sealing retainer ring supports against the sealing rings, so that three-layer sealing is realized, and the sealing performance is good;

2. when the valve is opened and the fluid flows through the valve plate, if the situation of large impurities occurs, the impurities can be cut by the cutters on the grid supporting plate and the anti-blocking grid plate under the pushing of the flowing of the fluid, and the normal use of the valve is ensured due to the avoided blockage;

3. the utility model provides a cutter when the valve switching, can guarantee the sharpness of cutter through the dull polish of cutter dull polish ring.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a cross-sectional top view of the valve plate.

FIG. 4 is an enlarged view of FIG. 2 at B

Reference numbers in the figures: 1 valve body, 2 valve plates, 3 valve rods, 4 control boxes, 5 grid supporting plates, 6 anti-blocking grid plates, 7 sealing rings, 8 first elastic sealing rings, 9 sealing clamping rings, 10 second elastic sealing rings, 11 cutters, 12 cutter grinding rings, 13 shaft sleeves, 14 third elastic sealing rings and 15 fourth elastic sealing rings.

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.

Example one

Referring to fig. 1-4, an automatic opening and closing butterfly valve comprises a valve body 1, wherein a circulation channel is formed in the valve body 1, a valve plate 2 is matched in the circulation channel, a valve rod 3 is arranged in the middle of the valve plate 2, a through hole and a groove matched with the valve rod 3 are formed in the valve body 1, one end, penetrating through the through hole, of the valve rod 3 is connected with a control box 4, the control box 4 is installed on the valve body 1, grid supporting plates 5 perpendicular to the valve plate 2 are fixed on two sides of the valve rod 3, the two grid supporting plates 5 are semicircular, two anti-blocking grid plates 6 are connected between the two grid supporting plates 5 and the valve plate 2, and cutters 11 are installed on two sides of each grid supporting plate 5;

specifically, the two anti-blocking grid plates 6 are arc-shaped plates and are centrosymmetric about the valve rod 3, a cutter grinding ring 12 matched with the cutter 11 is installed in the circulation channel, a motor and a motor controller are arranged in the control box 4, the model of the motor controller is DATA-7311, the input end of the motor is electrically connected with the output end of the motor controller, the output shaft of the motor is connected with the valve rod 3, shaft sleeves 13 are installed between the valve rod 3 and the matched through hole and groove, a third elastic sealing ring 14 and a fourth elastic sealing ring 15 are respectively arranged on the inner side and the outer side of each shaft sleeve, the third elastic sealing ring 14 and the fourth elastic sealing ring 15 are made of elastic rubber materials, and the grid size on the grid supporting plate 5 is the same as the grid size on the anti-blocking grid plate 6;

when the valve works, the motor controller can control the motor to work, and when the motor works, the motor indirectly drives the valve rod 3, the valve plate 2 on the valve rod 3 and the grid supporting plate 5 to rotate, so that the valve rod 3 drives the valve plate 2 to rotate by 90 degrees to realize the automatic opening and closing of the valve;

referring to fig. 3-4, the outer walls of the valve plate 2 and the grid support plate 5 are both fixedly provided with a seal ring 7, two sides of the outer wall of the seal ring 7 are provided with two first elastic seal rings 8, the inner wall of the circulation channel is provided with a seal collar 9 matched with the two first elastic seal rings 8, the interior of the seal collar 9 is provided with a mounting groove, the inner wall of the mounting groove is provided with a second elastic seal ring 10, wherein the cross section of the seal collar 9 is a C-shaped surface, the distance between the two first elastic seal rings 8 is matched with the cross section width of the seal collar 9, and one side of the second elastic seal ring 10 is in contact with the outer wall of the seal ring 7; two first elastic sealing rings 8 are arranged on a sealing ring 7 on the outer side of the valve plate 2, when the valve is closed, the two first elastic sealing rings 8 are clamped on two sides of a sealing clamping ring 9, the sealing clamping ring 9 is clamped and fixed in the space between the two first elastic sealing rings 8, a second elastic sealing ring 10 in the sealing clamping ring 9 is abutted against the sealing ring 7, when the valve is used, three-layer sealing is realized through the connection and installation among the two first elastic sealing rings 8, the sealing clamping ring 9 and the second elastic sealing ring 10, and the sealing performance is good;

referring to fig. 1 and 3, after the valve is opened, when the fluid flows through valve plate 2, if when the great condition of impurity appears, impurity can be under the promotion that the fluid flows, cut by grid backup pad 5 with prevent that cutter 11 on the stifled grid plate 6 cuts, the normal use of valve has been guaranteed in the jam of avoiding, and when the valve switching, cutter 11 can carry out dull polish through cutter dull polish ring 12, guarantee cutter 11's sharpness, can be when using, the effectual valve of avoiding appears blockking up, the normal use of valve has been guaranteed, prevent stifled good, therefore, the clothes hanger is strong in practicability, service life is longer.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The 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 utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An automatic opening and closing butterfly valve comprises a valve body (1) and is characterized in that a circulation channel is arranged in the valve body (1), a valve plate (2) is matched in the circulation channel, a valve rod (3) is arranged in the middle of the valve plate (2), a through hole and a groove which are matched with the valve rod (3) are arranged on the valve body (1), one end of the valve rod (3) penetrating through the through hole is connected with a control box (4), and the control box (4) is arranged on the valve body (1), grid supporting plates (5) which are mutually vertical to the valve plate (2) are fixed on both sides of the valve rod (3), the two grid supporting plates (5) are both semicircular, two anti-blocking grid plates (6) are connected between the two grid supporting plates (5) and the valve plate (2), and cutters (11) are mounted on two sides of each of the grid supporting plates (5) and the two anti-blocking grid plates (6);

the utility model discloses a seal ring, including valve plate (2) and net backup pad (5), the equal fixed mounting of outer wall of valve plate (2) and net backup pad (5) has sealing washer (7), the outer wall both sides of sealing washer (7) are equipped with two first elastic seal circle (8), install on the inner wall of circulation passageway and two first elastic seal circle (8) matched with seals rand (9), and the inside of sealing rand (9) is provided with the mounting groove, the inner wall of mounting groove is equipped with second elastic seal circle (10).

2. An automatic opening and closing butterfly valve according to claim 1, characterized in that both said anti-blocking grid plates (6) are arc-shaped plates and are centrosymmetric with respect to the valve stem (3).

3. The automatic opening and closing butterfly valve according to claim 1, characterized in that a cutter sanding ring (12) matched with the cutter (11) is installed in the flow channel.

4. An automatic opening and closing butterfly valve according to claim 1, characterized in that a motor and a motor controller are arranged in the control box (4), the motor controller is of a type DATA-7311, the input end of the motor is electrically connected with the output end of the motor controller, and the output shaft of the motor is connected with the valve rod (3).

5. The automatic opening and closing butterfly valve according to claim 1, characterized in that a shaft sleeve (13) is installed between the valve rod (3) and the through hole and the groove which are matched with each other, a third elastic sealing ring (14) and a fourth elastic sealing ring (15) are respectively arranged on the inner side and the outer side of the shaft sleeve, and the third elastic sealing ring (14) and the fourth elastic sealing ring (15) are both made of elastic rubber materials.

6. The automatic opening and closing butterfly valve according to claim 1, wherein the size of the grids on the grid support plate (5) is the same as the size of the grids on the anti-blocking grid plate (6).

7. An automatic opening and closing butterfly valve according to claim 1, characterized in that the cross section of said sealing collar (9) is C-shaped, the distance between two said first elastic sealing rings (8) is adapted to the width of the cross section of the sealing collar (9), and one side of said second elastic sealing ring (10) is in contact with the outer wall of the sealing ring (7).