CN213711901U

CN213711901U - Flexible graphite sealing butterfly valve

Info

Publication number: CN213711901U
Application number: CN202021947122.9U
Authority: CN
Inventors: 李新民
Original assignee: Tianjin Zhuxin Valve Co ltd
Current assignee: Tianjin Zhuxin Valve Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-07-16
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a flexible graphite sealing butterfly valve, including tail-hood, clamp plate and pivot, the top of tail-hood is equipped with the second valve body, and the both sides of second valve body are equipped with first fixed connection piece, and first fixed connection piece passes through welded mode and second valve body fixed connection, and the both sides of second valve body are equipped with the water piping connection board, and the top of water piping connection board is equipped with the second valve body, and the bottom both sides of second valve body are equipped with second fixed connection piece, and the top of second valve body is equipped with the clamp plate, and the top of clamp plate is equipped with the gland. The utility model discloses a screw hole, first fixed connection piece, second fixed connection piece and the water pipe spread groove that are equipped with realize the whole inseparable fixed connection with the water pipe of equipment to ensure the whole work that can normally stabilize of equipment.

Description

Flexible graphite sealing butterfly valve

Technical Field

The utility model relates to a sealed butterfly valve technical field specifically is a flexible graphite seals 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.

At present, the sealed effect between butterfly valve body and the valve rod is general among the prior art, and in the use, rivers appear very easily and gush out from between valve body and the valve rod, cause the condition of leaking, because sealed not tight, it is not good to lead to sealed effect for the valve body upper end that appears leaks, causes serious water resource loss, extravagant water source. Therefore, we improve the method and provide a flexible graphite sealing butterfly valve.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a flexible graphite sealing butterfly valve.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a flexible graphite sealing butterfly valve, including tail-hood, clamp plate and pivot, the top of tail-hood is equipped with first valve body, the both sides of first valve body are equipped with first fixed connection piece, first fixed connection piece passes through welded mode and first valve body fixed connection, the both sides of second valve body are equipped with the water pipe connecting plate, the top of water pipe connecting plate is equipped with the second valve body, the bottom both sides of second valve body are equipped with second fixed connection piece, the top of second valve body is equipped with the clamp plate, the top of clamp plate is equipped with the gland, screw and clamp plate fixed connection that the gland was through being equipped with, the top of gland is equipped with the worm wheel drive pipe, be equipped with valve rod and drive gear in the worm wheel drive pipe, the top of worm wheel drive pipe is equipped with the transmission shroud, be equipped with steering gear in the transmission shroud.

As an optimal technical scheme of the utility model, one side of transmission shroud is equipped with the carousel, one side of carousel is indirectly connected with the inside drive gear of transmission shroud through the transmission shaft that is equipped with.

As the utility model discloses a preferred technical scheme, threaded hole is seted up to one side of water pipe connecting plate, water pipe connecting plate's opposite side is equipped with the water pipe linking groove.

As a preferred technical scheme of the utility model, the water piping connection board is the annular shape, be equipped with the butterfly valve in the ring of water piping connection board, the butterfly valve pass through the valve rod that top and bottom were equipped with respectively with first valve body and second valve body fixed connection.

As an optimized technical scheme of the utility model, the outer lane of butterfly valve is equipped with the graphite annulus, the inner circle of graphite annulus and the outer lane fixed connection of butterfly valve.

As an optimal technical scheme of the utility model, be equipped with the butterfly plate in the butterfly valve, the both ends and the butterfly valve fixed connection of butterfly plate.

As an optimal technical scheme of the utility model, one side of butterfly plate is equipped with the pivot, the pivot is in butterfly plate fixed connection.

As an optimal technical scheme of the utility model, be equipped with the sealing filler between the valve rod that is equipped with in clamp plate and gland and the worm wheel drive pipe, the sealing filler is the graphite material.

The utility model has the advantages that: the flexible graphite sealing butterfly valve realizes the cutoff effect of water flow in a water pipe through the arranged butterfly valve, achieves the effect of stage water source when water is not needed, avoids water resource waste, realizes the sealing of the butterfly valve and a water pipe connecting plate through the graphite ring arranged on the outer ring of the butterfly valve, achieves the absolute cutoff effect, simultaneously achieves the sealing effect through the flexibility of the material of the graphite ring, simultaneously, the graphite ring is contacted with the water pipe connecting plate, the inner ring of the water pipe connecting plate can not be damaged, the dripping leakage can be prevented, the valve body and the valve rod can be effectively sealed through the arranged sealing filler, the good sealing effect can be realized when the rotation of the valve rod is not influenced, the sealing effect between the valve body and the valve rod of the butterfly valve in the prior art is general, and in the using process, the water flow can easily flow out from the valve body and the valve rod, the condition of leaking is caused, the sealing effect is poor due to the fact that sealing is not tight, water leakage is caused at the upper end of the valve body, serious water resource loss is caused, the problem of water source waste is solved, and the practicability of the device is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a flexible graphite sealing butterfly valve of the present invention;

FIG. 2 is a schematic view of the internal structure of a flexible graphite sealing butterfly valve according to the present invention;

fig. 3 is the utility model discloses a multi-angle structure schematic diagram of flexible graphite seal butterfly valve.

In the figure: 1. a tail cover; 2. a first fixed connecting sheet; 3. a water pipe connecting plate; 4. a threaded hole; 5. a second fixed connecting sheet; 6. a first valve body; 7. a worm gear transmission pipe; 8. a transmission cover cap; 9. a turntable; 10. pressing a plate; 11. a butterfly valve; 12. connecting grooves of water pipes; 13. a second valve body; 14. sealing and filling; 15. a butterfly plate; 16. a shaft pin; 17. a gland; 18. a graphite ring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, 2 and 3, the flexible graphite sealing butterfly valve of the present invention comprises a tail cover 1, a pressing plate 10 and a shaft pin 16, wherein a first valve body 6 is arranged on the top of the tail cover 1, first fixing connection pieces 2 are arranged on both sides of the first valve body 6, the first fixing connection pieces 2 are fixedly connected with the first valve body 6 by welding, water pipe connection plates 3 are arranged on both sides of the first valve body 6, a second valve body 13 is arranged on the top end of the water pipe connection plates 3, second fixing connection pieces 5 are arranged on both sides of the bottom of the second valve body 13, the pressing plate 10 is arranged on the top end of the second valve body 13, a pressing cover 17 is arranged on the top of the pressing plate 10, the pressing cover 17 is fixedly connected with the pressing plate 10 by screws, a worm gear transmission pipe 7 is arranged on the top of the pressing cover 17, a valve rod and a transmission gear are arranged in the worm gear transmission pipe 7, a, through screw hole 4, first fixed connection piece 2, second fixed connection piece 5 and the water pipe spread groove 12 that are equipped with, realize the whole inseparable fixed connection with the water pipe of equipment to ensure the whole normal stable work that can of equipment.

Wherein, one side of transmission shroud 8 is equipped with carousel 9, and one side of carousel 9 is indirectly connected with the inside drive gear of transmission shroud 8 through the transmission shaft that is equipped with, through the carousel 9 that is equipped with, realizes the control to opening and closing of butterfly valve 11.

Wherein, threaded hole 4 is seted up to one side of water pipe connecting plate 3, and the opposite side of water pipe connecting plate 3 is equipped with water pipe spread groove 12, through threaded hole 4 and water pipe connecting plate 3, realizes the zonulae occludens between the whole and the water pipe of equipment.

Wherein, water piping connection board 3 is the annular shape, is equipped with butterfly valve 11 in water piping connection board 3's the ring, butterfly valve 11 through the top and the bottom be equipped with the valve rod respectively with first valve body 6 and second valve body 13 fixed connection, through the first valve body 6 that are equipped with and second valve body 13 and butterfly valve 11's fixed connection, realize carousel 9 to butterfly valve 11's control.

Wherein, butterfly valve 11's outer lane is equipped with graphite ring 18, graphite ring 18's inner circle and butterfly valve 11's outer lane fixed connection, through graphite ring 18 that is equipped with, realize butterfly valve 11 and water pipe connecting plate 3 sealed, reach the effect of absolute cutout, the pliability of the material through graphite ring 18 simultaneously, when reaching sealed effect, graphite ring 18 and water pipe connecting plate 3 contact, can not injure water pipe connecting plate 3's inner circle, prevent the water clock.

Wherein, be equipped with butterfly plate 15 in the butterfly valve 11, the both ends and the butterfly valve 11 fixed connection of butterfly plate 15, through the butterfly plate 15 that is equipped with, realize the fixed action to pivot 16.

Wherein, one side of butterfly plate 15 is equipped with pivot 16, and pivot 16 is in butterfly plate 15 fixed connection, through the pivot 16 that is equipped with, realizes the rotation of valve rod drive butterfly valve 11, reaches the effect of opening and closing.

Wherein, be equipped with sealing filler 14 between the valve rod that is equipped with in clamp plate 10 and gland 17 and the worm wheel drive pipe 7, sealing filler 14 is the graphite material, through the sealing filler 14 that is equipped with for obtain effectual sealed between first valve body 6 and the valve rod, when not influencing the rotation of valve rod, played fine sealed effect again.

During operation, through the arranged water pipe connecting plate 3, the sealing connection between the whole equipment and the water pipe is realized, the tight fixed connection between the whole equipment and the water pipe is realized through the arranged threaded hole 4, the first fixed connecting sheet 2, the second fixed connecting sheet 5 and the water pipe connecting groove 12, so as to ensure the normal and stable operation of the whole equipment, the switch control of the butterfly valve 11 is realized through the arranged turntable 9, the valve rod and the transmission gear, the water flow in the water pipe is cut off through the arranged butterfly valve 11, the effect of stage water source is achieved when water is not needed, the waste of water resources is avoided, the sealing between the butterfly valve 11 and the water pipe connecting plate 3 is realized through the graphite ring 18 arranged on the outer ring of the butterfly valve 11, the absolute cut-off effect is achieved, meanwhile, the flexibility of the material of the graphite ring 18 is utilized, and the graphite ring 18 is contacted with the water pipe connecting plate 3 when the sealing, the inner ring of the water pipe connecting plate 3 can not be damaged, the dripping leakage is prevented, and the sealing filler 14 arranged is used for effectively sealing between the valve body and the valve rod, so that the valve body and the valve rod can rotate without influencing the valve rod, and a good sealing effect is achieved.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible graphite sealing butterfly valve comprises a tail cover (1), a pressing plate (10) and a shaft pin (16), and is characterized in that a first valve body (6) is arranged at the top of the tail cover (1), first fixing connecting pieces (2) are arranged on two sides of the first valve body (6), the first fixing connecting pieces (2) are fixedly connected with the first valve body (6) in a welding mode, water pipe connecting plates (3) are arranged on two sides of the first valve body (6), a second valve body (13) is arranged at the top end of each water pipe connecting plate (3), second fixing connecting pieces (5) are arranged on two sides of the bottom of the second valve body (13), the pressing plate (10) is arranged at the top end of the second valve body (13), a pressing cover (17) is arranged at the top end of the pressing plate (10), the pressing cover (17) is fixedly connected with the pressing plate (10) through a screw, and a worm gear pipe (7) is arranged at the top end of the pressing cover (, be equipped with valve rod and drive gear in worm wheel driving pipe (7), the top of worm wheel driving pipe (7) is equipped with transmission shroud (8), be equipped with steering gear in transmission shroud (8).

2. The flexible graphite sealing butterfly valve according to claim 1, characterized in that a rotary disk (9) is arranged on one side of the transmission cover cap (8), and one side of the rotary disk (9) is indirectly connected with a transmission gear inside the transmission cover cap (8) through a transmission shaft.

3. The flexible graphite sealing butterfly valve according to claim 1, characterized in that a threaded hole (4) is opened on one side of the water pipe connecting plate (3), and a water pipe connecting groove (12) is provided on the other side of the water pipe connecting plate (3).

4. The flexible graphite sealing butterfly valve according to claim 1, characterized in that the water pipe connecting plate (3) is in a circular ring shape, a butterfly valve (11) is arranged in the circular ring of the water pipe connecting plate (3), and the butterfly valve (11) is fixedly connected with the first valve body (6) and the second valve body (13) through valve rods arranged at the top and the bottom respectively.

5. A flexible graphite sealing butterfly valve according to claim 4, characterized in that the outer ring of the butterfly valve (11) is provided with a graphite ring (18), and the inner ring of the graphite ring (18) is fixedly connected with the outer ring of the butterfly valve (11).

6. The flexible graphite sealing butterfly valve according to claim 4, characterized in that a butterfly plate (15) is arranged in the butterfly valve (11), and both ends of the butterfly plate (15) are fixedly connected with the butterfly valve (11).

7. The flexible graphite sealing butterfly valve according to claim 6, characterized in that a shaft pin (16) is provided at one side of the butterfly plate (15), and the shaft pin (16) is fixedly connected with the butterfly plate (15).

8. The flexible graphite sealing butterfly valve according to claim 1, characterized in that a sealing packing (14) is arranged between the pressure plate (10) and the gland (17) and a valve rod arranged in the worm gear transmission pipe (7), and the sealing packing (14) is made of graphite.