CN214889241U

CN214889241U - Low operating torque high pressure butterfly valve

Info

Publication number: CN214889241U
Application number: CN202121253383.5U
Authority: CN
Inventors: 董相良; 缪震华; 叶国梁
Original assignee: Naisen Valve Industry Co ltd
Current assignee: Naisen Valve Industry Co ltd
Priority date: 2021-06-05
Filing date: 2021-06-05
Publication date: 2021-11-26
Anticipated expiration: 2031-06-05

Abstract

The utility model discloses a low operating torque high pressure butterfly valve, concretely relates to high pressure butterfly valve technical field, the water control valve comprises a valve body, the inside activity of valve body is equipped with the pivot, the fixed cover of pivot outer wall is equipped with the butterfly plate, butterfly plate one side outer wall surface activity is equipped with annular rubber pad, the pivot top runs through the valve body and extends to the valve body outside, the fixed two supports that are equipped with in valve body top, the fixed box that is equipped with in support top, the activity of box front side is equipped with the roller bearing. The utility model discloses a top and the bottom at the valve body all are equipped with the installation piece, be equipped with through-hole and circular slot in two installation pieces respectively, the outer wall of pivot and the inner wall contact of through-hole and circular slot, pour into lubricating oil in the cavity in the installation piece, lubricating oil flows on the outer wall of pivot through the oil drain hole, it is more level and smooth when ball bearing rotates to make the pivot, it has lubricating oil also to fill in the box, lubricate first bevel gear and second bevel gear, it is more laborsaving to make the staff when rotatory rotation handle.

Description

Low operating torque high pressure butterfly valve

Technical Field

The utility model belongs to the technical field of the high pressure butterfly valve technique and specifically relates to a low operating torque high pressure butterfly valve that says so.

Background

At present, along with the promotion of human environmental protection consciousness, clean energy's use is more and more common, it is indispensable to cook in people's daily life, generally use coal gas to cook before cooking, along with the development of science and technology, slowly begin to use the natural gas as main fuel, the natural gas contains no sulphur almost, dust and other harmful substance, the carbon dioxide that the natural gas produced when burning is less than other fossil fuel greatly, cause the greenhouse effect lower, therefore can effectively reduce the pollution to the environment, fundamentally improves environmental quality. In the connection of natural gas pipelines, the use of control elements is often not disconnected, and valves as common control elements of pipelines play an important role in pipelines. The existing valve is generally controlled by a butterfly valve, and the butterfly valve is simple to use, so that the butterfly valve is widely applied.

After the existing butterfly valve is used for a long time, the rotating gears on the butterfly valve are abraded, so that the rotating resistance between the rotating gears is increased, more strength is required to be consumed when a user rotates, and the butterfly valve is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a low operating torque high pressure butterfly valve to solve the problem that appears in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a low-operating-torque high-pressure butterfly valve comprises a valve body, wherein a rotating shaft is movably arranged in the valve body, a butterfly plate is fixedly sleeved on the outer wall of the rotating shaft, an annular rubber pad is movably arranged on the surface of the outer wall on one side of the butterfly plate, the top of the rotating shaft penetrates through the valve body and extends to the outer side of the valve body, two supports are fixedly arranged on the top of the valve body, a box body is fixedly arranged on the top of each support, a roller is movably arranged on the front side of the box body, a first bevel gear is fixedly sleeved on the outer wall of the roller, the top of the rotating shaft extends into the box body, a second bevel gear is fixedly arranged on the top of the rotating shaft and is arranged at the bottom of the first bevel gear, the second bevel gear is meshed with the first bevel gear, mounting blocks are embedded on the surfaces of the top and the bottom of the valve body, a cavity is formed in the mounting blocks on the top of the valve body and are provided with through holes corresponding to the rotating shaft, and circular grooves are formed in the mounting blocks on the bottom of the valve body, the rotating shaft is connected with the through hole and the circular groove through the ball bearing respectively, and oil discharge holes are formed in the inner wall surfaces of the through hole and the circular groove.

In a preferred embodiment, oil inlets are formed in the top surface of the mounting block at the top of the valve body and the bottom surface of the mounting block at the bottom of the valve body, the oil inlets are communicated with the cavity, and a sealing plug is movably arranged in each oil inlet.

In a preferred embodiment, the inner wall surface of the oil inlet hole is formed with an internal thread, the outer wall surface of the sealing plug is formed with an external thread, and the sealing plug is threadedly coupled with the internal thread and the oil inlet hole through the external thread.

In a preferred embodiment, a cover plate is movably arranged at the top of the box body, and lubricating oil is filled in the box body and the cavity of the mounting block.

In a preferred embodiment, a ring plate is arranged on one side of the annular rubber pad, a plurality of first circular holes are formed in the ring plate, a plurality of second circular holes are formed in the annular rubber pad, a plurality of first threaded holes are formed in the butterfly plate, first screws are arranged in the first circular holes, and one ends of the first screws penetrate through the second circular holes to extend into the first threaded holes and are in threaded connection with the first threaded holes.

In a preferred embodiment, a second screw is movably disposed on a rear side surface of the box, a second threaded hole is disposed on a rear side surface of the roller, and the second screw is disposed in the second threaded hole and is in threaded connection with the second threaded hole.

In a preferred embodiment, a rotating handle is fixedly arranged at the front end of the roller.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a top and the bottom at the valve body all are equipped with the installation piece, be equipped with through-hole and circular slot in two installation pieces respectively, the outer wall of pivot and the inner wall contact of through-hole and circular slot, pour into lubricating oil in the cavity in the installation piece, lubricating oil flows on the outer wall of pivot through the oil drain hole, it is more level and smooth when ball bearing rotates to make the pivot, it has lubricating oil also to fill in the box, lubricate first bevel gear and second bevel gear, it is more laborsaving to make the staff when rotatory rotation handle.

2. Through being provided with annular rubber pad on the butterfly plate, install annular rubber pad on the butterfly plate through crown plate and first screw, twist a plurality of first screws on the crown plate, first screw removes toward the first screw hole in the butterfly plate, drives crown plate extrusion annular rubber pad, and annular rubber pad has elasticity, receives the diameter grow after the extrusion, inseparabler with the contact of valve body inner wall, improves sealed effect.

Drawings

Fig. 1 is an overall structure front view of the present invention.

Fig. 2 is a front sectional view of the overall structure of the present invention.

Fig. 3 is a side sectional view of the overall structure of the present invention.

Fig. 4 is a front view of the butterfly plate of the present invention.

Fig. 5 is an enlarged view of a portion a of fig. 2 according to the present invention.

Fig. 6 is an enlarged view of a portion B of fig. 2 according to the present invention.

The reference signs are: 1. a valve body; 2. a rotating shaft; 3. a butterfly plate; 4. an annular rubber pad; 5. a support; 6. a box body; 7. a roller; 8. a first bevel gear; 9. a second bevel gear; 10. mounting blocks; 11. a cavity; 12. a through hole; 13. a circular groove; 14. an oil drain hole; 15. an oil inlet hole; 16. a sealing plug; 17. a cover plate; 18. a ring plate; 19. a first circular hole; 20. a second circular hole; 21. a first threaded hole; 22. a first screw; 23. a second screw; 24. a second threaded hole; 25. the handle is rotated.

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 the attached drawings 1-6 of the specification, the low-operating-torque high-pressure butterfly valve of the embodiment comprises a valve body 1, a rotating shaft 2 is movably arranged inside the valve body 1, a butterfly plate 3 is fixedly sleeved on the outer wall of the rotating shaft 2, the rotating shaft 2 drives the butterfly plate 3 to rotate in the valve body 1 to control the flow of gas or liquid, an annular rubber pad 4 is movably arranged on the surface of the outer wall of one side of the butterfly plate 3 to play a role of sealing between the butterfly plate 3 and the valve body 1, the top of the rotating shaft 2 penetrates through the valve body 1 and extends to the outer side of the valve body 1, two supports 5 are fixedly arranged on the top of the valve body 1, a box body 6 is fixedly arranged on the top of each support 5, a rolling shaft 7 is movably arranged on the front side of the box body 6, a first bevel gear 8 is fixedly sleeved on the outer wall of the rolling shaft 7, the top of the rotating shaft 2 extends into the box body 6, a second bevel gear 9 is fixedly arranged on the top of the rotating shaft 2, second bevel gear 9 establishes in first bevel gear 8 bottom, second bevel gear 9 and the meshing of first bevel gear 8 rotate roller bearing 7, and it is rotatory to drive pivot 2 to adjust the position of butterfly plate 3 in valve body 1, and it is more convenient to use, 1 top of valve body and bottom surface all inlay and are equipped with installation piece 10, installation piece 10 is inside to have seted up cavity 11, through-hole 12 has been seted up to installation piece 10 at 1 top of valve body corresponding pivot 2, circular slot 13 has been seted up to installation piece 10 of 1 bottom of valve body corresponding pivot 2, pivot 2 passes through ball bearing and is connected with through-hole 12, circular slot 13 respectively, oil drain hole 14 has all been seted up to through-hole 12 and circular slot 13 inner wall surface for on flowing the outer wall of pivot 2 with the lubricating oil, lubricate pivot 2, reduce the resistance that pivot 2 received when rotating.

Further, the cover plate 17 is movably arranged at the top of the box body 6, lubricating oil is filled in the box body 6 and the cavity 11 of the mounting block 10, the lubricating oil is used for lubricating the rotating shaft 2, the first bevel gear 8 and the second bevel gear 9 respectively, resistance in rotation is reduced, and a worker can adjust the butterfly plate 3 more easily.

The implementation scenario is specifically as follows: when the butterfly valve is used, a worker grasps the rotating handle 25 on the box body 6, the rotating handle 25 is rotated to drive the rolling shaft 7 to rotate in the box body 6, the first bevel gear 8 on the rolling shaft 7 is meshed with the second bevel gear 9 on the rotating shaft 2, so that the second bevel gear 9 and the rotating shaft 2 are driven to rotate, the butterfly plate 3 rotates along with the rotating shaft 2 to change the angle in the valve body 1 and form a gap with the interior of the valve body 1, so that gas or liquid can flow conveniently, after the angle of the butterfly plate 3 is adjusted, the second screw 23 on the box body 6 is screwed into the second threaded hole 24 on the rolling shaft 7, the position between the rolling shaft 7 and the box body 6 is limited, the butterfly plate 3 is prevented from being influenced by the automatic rotation of the rotating shaft 2, lubricating oil is filled in the box body 6, the lubricating oil can enable the meshing between the first bevel gear 8 and the second bevel gear 9 to be smoother, and reduce the friction between the first bevel gear 8 and the second bevel gear 9, all be equipped with installation piece 10 in the top and the bottom of valve body 1, also filled in the cavity 11 in the installation piece 10 has lubricating oil, and lubricating oil flows to the outer wall of pivot 2 through oil drain hole 14 on, makes pivot 2 more smooth and easy when rotating with through-hole 12, recess contact respectively, reduces the frictional force between pivot 2 and through-hole 12, the recess to make the staff more laborsaving when adjusting butterfly plate 3, save the labour.

Referring to the attached

drawings

2, 4, 5 and 6 in the specification, in the low-operating-torque high-pressure butterfly valve of the embodiment, a ring plate 18 is arranged on one side of an annular rubber gasket 4, a plurality of first round holes 19 are formed in the ring plate 18, a plurality of second round holes 20 are formed in the annular rubber gasket 4, a plurality of first threaded holes 21 are formed in the butterfly plate 3, first screws 22 are arranged in the first round holes 19, one ends of the first screws 22 penetrate through the second round holes 20 and extend into the first threaded holes 21 and are in threaded connection with the first threaded holes 21, and the sealing effect between the butterfly plate 3 and the inner wall of the valve body 1 is greatly improved by using the annular rubber gasket 4.

Further, a second screw 23 is movably arranged on the rear side surface of the box body 6, a second threaded hole 24 is formed in the rear side surface of the roller 7, and the second screw 23 is arranged in the second threaded hole 24, in threaded connection with the second threaded hole 24, and used for limiting the roller 7.

Furthermore, a rotating handle 25 is fixedly arranged at the front end of the rolling shaft 7, so that the position of the butterfly plate 3 can be adjusted by a worker conveniently.

The implementation scenario is specifically as follows: through being provided with annular rubber pad 4 on butterfly plate 3, the outer wall of annular rubber pad 4 and the inner wall surface contact of valve body 1, play sealed effect between butterfly plate 3 and valve body 1, after using for a long time, tighten first screw 22 on the ring plate 18, drive ring plate 18 and move toward butterfly plate 3, extrude annular rubber pad 4 when ring plate 18 removes, annular rubber pad 4 has elasticity, receive extrusion back diameter grow, inseparabler with the laminating of 1 inner wall of valve body, thereby increase the sealed effect between butterfly plate 3 and the valve body 1, and only need unscrew first screw 22, just can dismantle annular rubber pad 4 from butterfly plate 3, the convenient annular rubber pad 4 that more renews uses.

Referring to the attached fig. 2, 3, 5 and 6 of the specification, in the low operating torque high-pressure butterfly valve of this embodiment, oil inlets 15 are respectively opened on the top surface of the mounting block 10 at the top of the valve body 1 and the bottom surface of the mounting block 10 at the bottom of the valve body 1, the oil inlets 15 are communicated with the cavity 11, and a sealing plug 16 is movably arranged inside the oil inlets 15 and used for adding new lubricating oil.

Furthermore, an internal thread is processed on the surface of the inner wall of the oil inlet hole 15, an external thread is processed on the surface of the outer wall of the sealing plug 16, the sealing plug 16 is in threaded connection with the internal thread and the oil inlet hole 15 through the external thread, and the sealing plug 16 is in threaded connection with the liquid inlet hole, so that the sealing performance between the sealing plug 16 and the oil inlet hole 15 is better.

The implementation scenario is specifically as follows: all be equipped with inlet port 15 at the top and the bottom of two installation pieces 10, long-time use, lubricating oil consumption reduces in the cavity 11 of installation piece 10, unscrew sealing plug 16 in the inlet port 15, add new lubricating oil toward cavity 11 through oil pipe, be convenient for carry out continuous lubrication to countershaft 2, after having added lubricating oil, screw sealing plug 16 in the inlet port 15 again, just can continue to use, sealing plug 16 passes through external screw thread and internal thread and inlet port 15 threaded connection, make the sealed effect between sealing plug 16 and the inlet port 15 better, can prevent that lubricating oil from leaking outward.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a low operating torque high pressure butterfly valve, includes valve body (1), its characterized in that: the inner part of the valve body (1) is movably provided with a rotating shaft (2), the outer wall of the rotating shaft (2) is fixedly sleeved with a butterfly plate (3), the outer wall surface of one side of the butterfly plate (3) is movably provided with an annular rubber pad (4), the top of the rotating shaft (2) penetrates through the valve body (1) and extends to the outer side of the valve body (1), the top of the valve body (1) is fixedly provided with two brackets (5), the top of each bracket (5) is fixedly provided with a box body (6), the front side of the box body (6) is movably provided with a rolling shaft (7), the outer wall of the rolling shaft (7) is fixedly sleeved with a first bevel gear (8), the top of the rotating shaft (2) extends to the inner part of the box body (6), the top of the rotating shaft (2) is fixedly provided with a second bevel gear (9), the second bevel gear (9) is arranged at the bottom of the first bevel gear (8), and the second bevel gear (9) is meshed with the first bevel gear (8), valve body (1) top and bottom surface all inlay and are equipped with installation piece (10), cavity (11) have been seted up to installation piece (10) inside, through-hole (12) have been seted up in installation piece (10) at valve body (1) top corresponding pivot (2), circular slot (13) have been seted up in installation piece (10) of valve body (1) bottom corresponding pivot (2), pivot (2) are connected with through-hole (12), circular slot (13) respectively through ball bearing, oil drain hole (14) have all been seted up on through-hole (12) and circular slot (13) inner wall surface.

2. A low operating torque high pressure butterfly valve in accordance with claim 1, wherein: oil inlet holes (15) are formed in the top surface of the mounting block (10) at the top of the valve body (1) and the bottom surface of the mounting block (10) at the bottom of the valve body (1), the oil inlet holes (15) are communicated with the cavity (11), and sealing plugs (16) are movably arranged in the oil inlet holes (15).

3. A low operating torque high pressure butterfly valve in accordance with claim 2, wherein: the oil inlet is characterized in that an internal thread is machined on the surface of the inner wall of the oil inlet (15), an external thread is machined on the surface of the outer wall of the sealing plug (16), and the sealing plug (16) is in threaded connection with the internal thread and the oil inlet (15) through the external thread.

4. A low operating torque high pressure butterfly valve in accordance with claim 1, wherein: the top of the box body (6) is movably provided with a cover plate (17), and lubricating oil is filled in the box body (6) and the cavity (11) of the mounting block (10).

5. A low operating torque high pressure butterfly valve in accordance with claim 1, wherein: annular rubber pad (4) one side is equipped with crown plate (18), a plurality of first round holes (19) have been seted up to crown plate (18) inside, a plurality of second round holes (20) have been seted up to annular rubber pad (4) inside, a plurality of first screw holes (21) have been seted up to butterfly board (3) inside, be equipped with first screw (22) in first round hole (19), first screw (22) one end run through second round hole (20) extend to in first screw hole (21) and with first screw hole (21) threaded connection.

6. A low operating torque high pressure butterfly valve in accordance with claim 1, wherein: the rear side surface of the box body (6) is movably provided with a second screw (23), the rear side surface of the rolling shaft (7) is provided with a second threaded hole (24), and the second screw (23) is arranged in the second threaded hole (24) and is in threaded connection with the second threaded hole (24).

7. A low operating torque high pressure butterfly valve in accordance with claim 1, wherein: and a rotating handle (25) is fixedly arranged at the front end of the rolling shaft (7).