CN210739396U

CN210739396U - Manual hard seal butterfly valve convenient to adjust

Info

Publication number: CN210739396U
Application number: CN201921151477.4U
Authority: CN
Inventors: 杨文平
Original assignee: Wenzhou Fulet Valve Co Ltd
Current assignee: Wenzhou Fulet Valve Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-06-12
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a manual hard seal butterfly valve convenient to adjust, which comprises a valve body, wherein the valve body comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, a rotary damper is welded in the first pipeline, a valve is rotatably installed on the rotary damper, the tail end of the valve is in keyed joint with a first bevel gear, the inner wall of the third pipeline is welded with a spacing ring, a valve rod is rotatably installed on the spacing ring, the top end of the valve rod is in keyed joint with a second bevel gear, the second bevel gear is in meshed joint with the first bevel gear, a butterfly plate is welded at the bottom end of the valve rod, the rotation in the horizontal direction can be converted into the vertical direction through the transmission connection of the first bevel gear and the second bevel gear, the rotary damper can provide a damping effect when the valve rotates too hard, the diameter of the first bevel gear is smaller than that of the second bevel gear, and the rotation speed of, thereby realize the switch and the flow control function to the pipeline, simple structure, the simple operation.

Description

Manual hard seal butterfly valve convenient to adjust

Technical Field

The utility model relates to a butterfly valve technical field sealed firmly specifically is a butterfly valve sealed firmly manually convenient to adjust.

Background

The hard sealing butterfly valve is also called flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium. The hard sealing butterfly valve mainly plays the roles of cutting off and throttling on the 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 hard sealing butterfly valve is suitable for pipelines for conveying various corrosive and non-corrosive fluid media in producer furnaces, coal gas, steam, natural gas, urban coal gas, cold and hot air, chemical smelting engineering and power generation environment-friendly systems, and is used for regulating and cutting off the flow of the media. The hard seal butterfly valve can be divided into a manual hard seal butterfly valve, a pneumatic hard seal butterfly valve and an electric hard seal butterfly valve.

The existing manual hard sealing butterfly valve has a complex internal structure, the rotation speed of the butterfly plate is difficult to control, and the valve is easy to open and close too hard, so that the rotation angle of the butterfly plate is too large, and the flow control of fluid in a pipeline is difficult to realize.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manual butterfly valve sealed firmly convenient to adjust is connected through the transmission of first bevel gear and second bevel gear, can convert the ascending rotation of horizontal direction into vertical direction, and rotary damper can rotate too vigorously at the valve and provide the damping effect, and first bevel gear diameter is less than second bevel gear diameter, is convenient for control butterfly plate slew velocity to realize switch and the flow control function to the pipeline, moreover, the steam generator is simple in structure, and the operation is convenient, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a manual hard seal butterfly valve convenient to adjust comprises a valve body, wherein the valve body comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, one end of the first pipeline is communicated with the side wall of the second pipeline, the top end of the third pipeline is communicated with the bottom of the second pipeline, the side wall of the fourth pipeline is communicated with the bottom end of the third pipeline, a rotary damper is welded in the first pipeline, a valve is rotatably mounted on the rotary damper, the tail end of the valve is in keyed connection with a first bevel gear, the first bevel gear is located in the second pipeline, a limit ring is welded on the inner wall of the third pipeline, a valve rod is rotatably mounted on the limit ring, a second bevel gear is in keyed connection with the top end of the valve rod and located in the second pipeline, the diameter of the second bevel gear is larger than that of the first bevel gear, the second bevel gear is in meshed connection with the first bevel gear, the butterfly plate is welded at the bottom end of the valve rod, the top and the bottom of the butterfly plate are symmetrically and integrally formed to be provided with a conical connecting hole, the tail end of the valve rod is located in the conical connecting hole, the butterfly plate is located in the fourth pipeline, and a sealing ring is glued to the bottom in the second pipeline.

Preferably, a rubber sleeve is sleeved on the valve.

Preferably, the limiting rings are provided with two groups, and the two groups of limiting rings are respectively positioned at the top and the bottom of the second pipeline.

Preferably, a rotating shaft is welded in the conical connecting hole at the bottom of the butterfly plate and is rotatably connected to the bottom in the fourth pipeline.

Preferably, the fourth pipeline is provided with connecting plates at two ends, and the two groups of connecting plates are provided with threaded holes in an annular shape at equal intervals.

Preferably, annular reinforcing ribs are welded between the two groups of connecting plates at equal intervals.

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

the rotation on the horizontal direction can be converted into the vertical direction through the transmission connection of first bevel gear and second bevel gear, and rotary damper can rotate at the valve and provide damping effect violently, and first bevel gear diameter is less than the second bevel gear diameter, is convenient for control butterfly plate slew velocity to the realization is to switch and the flow control function of pipeline, simple structure, simple operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic top view of the butterfly plate of the present invention;

fig. 4 is a schematic top view of the fourth pipeline of the present invention.

In the figure: 1. a valve body; 2. a first conduit; 3. a second conduit; 4. a third pipeline; 5. a fourth conduit; 6. a rotary damper; 7. a valve; 8. a first bevel gear; 9. a limiting ring; 10. a valve stem; 11. a second bevel gear; 12. a butterfly plate; 13. a seal ring; 14. a rubber sleeve; 15. a tapered connection hole; 16. a rotating shaft; 17. a connecting plate; 18. a threaded hole; 19. and (5) reinforcing ribs.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a manual hard seal butterfly valve convenient to adjust comprises a valve body 1, wherein the valve body 1 comprises a first pipeline 2, a second pipeline 3, a third pipeline 4 and a fourth pipeline 5, one end of the first pipeline 2 is communicated with the side wall of the second pipeline 3, the top end of the third pipeline 4 is communicated with the bottom of the second pipeline 3, the side wall of the fourth pipeline 5 is communicated with the bottom end of the third pipeline 4, a rotary damper 6 is welded in the first pipeline 2, the rotary damper 6 enables a product to obtain gentle mechanical motion, the quality and the service life of the product are improved, one-way buffering and two-way buffering are provided, a valve 7 is rotatably installed on the rotary damper 6, a first bevel gear 8 is connected to the tail end of the valve 7 in a key mode, the first bevel gear 8 is located in the second pipeline 3, a limiting ring 9 is welded on the inner wall of the third pipeline 4, the valve rod 10 is limited, the function of intercepting fluid by a butterfly plate 12 is guaranteed, a valve, valve rod 10 top key-type is connected with second bevel gear 11, second bevel gear 11 is located second pipeline 3, second bevel gear 11 diameter is greater than first bevel gear 8 diameter, second bevel gear 11 is connected with the meshing of first bevel gear 8, convert valve 7's rotation into valve rod 10's rotation, the welding of valve rod 10 bottom has butterfly plate 12, butterfly plate 12 top and bottom symmetry integrated into one piece have tapered connection hole 15, valve rod 10 end is located tapered connection hole 15, butterfly plate 12 is located fourth pipeline 5, the bottom is glued in second pipeline 3 has sealing washer 13, prevent that the fluid from getting into in third pipeline 4.

Specifically, the valve 7 is sleeved with the rubber sleeve 14, and the valve 7 is sleeved with the rubber sleeve 14, so that the valve 7 can be rotated conveniently.

Specifically, the spacing ring 9 is equipped with two sets ofly, and two sets of spacing ring 9 are for being located the top and the bottom in second pipeline 3 respectively, set up two sets of spacing ring 9 for being located the top and the bottom in second pipeline 3 respectively, are convenient for carry on spacingly to valve rod 10.

Specifically, a rotating shaft 16 is welded in a conical connecting hole 15 at the bottom of the butterfly plate 12, the rotating shaft 16 is rotatably connected to the bottom in the fourth pipeline 5, and the rotating shaft 16 is arranged to facilitate rotation of the butterfly plate 12.

Specifically, the integrated shaping of both ends has connecting plate 17 on the fourth pipeline 5, and equal cyclic annular equidistant set up screw hole 18 on two sets of connecting plates 17, the device of being convenient for and external pipeline's being connected.

Specifically, annular equal-interval welding reinforcing ribs 19 are welded between the two groups of connecting plates 17, and the annular equal-interval welding reinforcing ribs 19 are welded between the two groups of connecting plates 17, so that the structural strength of the two groups of connecting plates 17 is enhanced.

The working principle is as follows: the valve 7 is rotated, the rotary damper 6 can provide a damping effect when the valve 7 is opened and is too violent, so that the rotation speed of the butterfly plate 12 can be conveniently controlled, because the diameter of the second bevel gear 11 is larger than that of the first bevel gear 8, the rotation speed of the butterfly plate 12 can be further controlled under the transmission action of the second bevel gear 11 and the first bevel gear 8, the first bevel gear 8 drives the second bevel gear 11 to rotate under the transmission action, and then the butterfly plate 12 is driven to rotate, so that the pipeline opening and closing and flow control functions are realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a manual butterfly valve sealed firmly convenient to adjust, includes valve body (1), its characterized in that: the valve body (1) comprises a first pipeline (2), a second pipeline (3), a third pipeline (4) and a fourth pipeline (5), one end of the first pipeline (2) is communicated with the side wall of the second pipeline (3), the top end of the third pipeline (4) is communicated with the bottom of the second pipeline (3), the side wall of the fourth pipeline (5) is communicated with the bottom end of the third pipeline (4), a rotary damper (6) is welded in the first pipeline (2), a valve (7) is rotatably installed in the rotary damper (6), a first bevel gear (8) is in key connection with the tail end of the valve (7), the first bevel gear (8) is located in the second pipeline (3), a limiting ring (9) is welded on the inner wall of the third pipeline (4), a valve rod (10) is rotatably installed in the limiting ring (9), and a second bevel gear (11) is in key connection with the top end of the valve rod (10), second bevel gear (11) are located second pipeline (3), second bevel gear (11) diameter is greater than first bevel gear (8) diameter, second bevel gear (11) are connected with first bevel gear (8) meshing, valve rod (10) bottom welding has butterfly plate (12), butterfly plate (12) top and bottom symmetry integrated into one piece have toper connecting hole (15), valve rod (10) end is located toper connecting hole (15), butterfly plate (12) are located fourth pipeline (5), bottom cement has sealing washer (13) in second pipeline (3).

2. A manual hard seal butterfly valve to facilitate adjustment according to claim 1, wherein: the valve (7) is sleeved with a rubber sleeve (14).

3. A manual hard seal butterfly valve to facilitate adjustment according to claim 1, wherein: the limiting rings (9) are provided with two groups, and the two groups of limiting rings (9) are respectively positioned at the top and the bottom of the second pipeline (3).

4. A manual hard seal butterfly valve to facilitate adjustment according to claim 1, wherein: a rotating shaft (16) is welded in the conical connecting hole (15) at the bottom of the butterfly plate (12), and the rotating shaft (16) is rotatably connected to the bottom in the fourth pipeline (5).

5. A manual hard seal butterfly valve to facilitate adjustment according to claim 1, wherein: the fourth pipeline (5) is provided with connecting plates (17) at two ends, and the connecting plates (17) are provided with threaded holes (18) in an annular shape at equal intervals.

6. The manual hard seal butterfly valve of claim 5, wherein: annular reinforcing ribs (19) are welded between the two groups of connecting plates (17) at equal intervals.