CN219975384U

CN219975384U - Butterfly valve with adjustable flow

Info

Publication number: CN219975384U
Application number: CN202321475582.XU
Authority: CN
Inventors: 张洪权; 顾堂文; 鄢秀英; 鄢新林; 刘子敏
Original assignee: Zhejiang Compass Valve Co ltd
Current assignee: Zhejiang Compass Valve Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-11-07
Anticipated expiration: 2033-06-09

Abstract

The utility model discloses a flow-adjustable butterfly valve, which comprises a valve body, a valve plate and a valve rod, wherein the middle part of the valve body is provided with a mounting table, the mounting table is provided with a shell, a transmission mechanism is arranged in the shell, one end of the valve rod is connected with the transmission mechanism, the other end of the valve rod penetrates through the valve body and then is connected with the valve plate, one end of the valve rod, which is far away from the valve plate, is provided with a connecting rod penetrating through the shell, an arrow pointer is fixedly arranged on the connecting rod, the surface of the shell is provided with an angle scale mark with an arc-shaped structure, one side of the shell is provided with a boss, and a transmission rod is arranged in the boss.

Description

Butterfly valve with adjustable flow

Technical Field

The utility model discloses a butterfly valve with adjustable flow, and belongs to the technical field of butterfly valves.

Background

The butterfly valve is also called as a flap valve, is a regulating valve with simple structure and convenient use, is commonly used for the on-off control of low-pressure pipeline media, and is a valve which is common in the prior art and is widely used. Most butterfly valves are normally in a fully opened or fully closed state when in use, when fluid flow is required to be regulated, the included angle between the valve plate and the fluid channel is controlled, when the existing butterfly valve rotates, an operator does not know the rotating angle of the valve plate, the valve plate cannot be controlled accurately, and in the opened state, tiny swing can occur when the valve plate is subjected to larger fluid impact force, and the overall structure is unstable.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a butterfly valve with adjustable flow.

The butterfly valve with the adjustable flow comprises a valve body, a valve plate and a valve rod, wherein an installation table is arranged in the middle of the valve body, a shell is arranged on the installation table, a transmission mechanism is arranged in the shell, one end of the valve rod is connected with the transmission mechanism, the other end of the valve rod penetrates through the valve body and then is connected with the valve plate, one end of the valve rod, which is far away from the valve plate, is provided with a connecting rod penetrating through the shell, an arrow pointer is fixedly arranged on the connecting rod through a bolt, the surface of the shell is provided with an angle scale mark with an arc-shaped structure, one side of the shell is provided with a boss, a transmission rod is arranged in the boss, one end of the transmission rod is connected with the transmission mechanism, the other end of the transmission rod is provided with a hand wheel, and a limiting part for limiting the rotation of the transmission rod is arranged on the boss.

Preferably, the driving mechanism comprises a driving bevel gear and a driven bevel gear, the driving bevel gear is fixed at the end part of the driving rod, the driven bevel gear is fixed at the end part of the valve rod, and the driving bevel gear is meshed with the driven bevel gear.

Preferably, one side of each of the driving bevel gear and the driven bevel gear has a support stand contacting with the housing.

Preferably, the locating part includes first stop bolt, first spring, projection and spacing post, projection one end is connected with the transfer line through the bolt, and the other end has the spacing groove, have on the spacing post with spacing groove complex fixture block, be provided with on the boss with transfer line vertically bulge, after the one end of first stop bolt passed the bulge with spacing post fixed connection, first spring is located the inboard of bulge to apply the effort that is close to the projection to spacing post, threaded connection has the thread bush that is used for controlling first stop bolt height on the bulge.

Preferably, a plug is arranged below the boss corresponding to the protruding portion.

Preferably, the shell is further provided with a lubrication mechanism opposite to the driving bevel gear and the driven bevel gear, the lubrication mechanism comprises an oil reservoir, a second limit bolt, a blocking piece and a second spring, the oil reservoir is arranged on the shell, one end of the second limit bolt is located at the outer side of the oil reservoir, a gap is reserved between the other end of the second limit bolt and the oil reservoir, the blocking piece is in a cone structure and is located at the inner side of the shell, the blocking piece is fixedly connected with the second limit bolt, the second spring is sleeved on the outer side of the second limit bolt, and the acting force for blocking the oil reservoir is applied to the blocking piece, and a sealing plug is further arranged on the oil reservoir.

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

through setting up arrow pointer, angle scale mark and locating part, when the transfer line drove the valve plate and rotate, can know the opening angle of valve plate through arrow pointer pivoted angle to carry out spacingly to the transfer line through the locating part, so can control the fluidic flow in the butterfly valve.

Drawings

FIG. 1 is a schematic diagram of a butterfly valve with adjustable flow rate according to the present utility model;

FIG. 2 is a cross-sectional view of a flow-adjustable butterfly valve of the utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of a limiting member according to the present utility model;

FIG. 5 is a schematic diagram of an oil reservoir according to the present utility model;

reference numerals: 1. a valve plate; 2. a valve body; 3. a housing; 4. an arrow pointer; 5. an angle scale mark; 6. a lubrication mechanism; 7. a limiting piece; 8. a boss; 9. a hand wheel; 10. a transmission rod; 11. a valve stem; 12. a mounting table; 13. a drive bevel gear; 14. a connecting rod; 15. a driven bevel gear; 16. a protruding portion; 17. a plug pin; 18. a limit column; 19. a thread sleeve; 20. a first limit bolt; 21. a first spring; 22. a convex column; 23. a plug; 24. a support table; 25. a clamping block; 26. a limit groove; 27. a blocking member; 28. an oil reservoir; 29. a second spring; 30. the second limit bolt; 31. and (5) sealing plugs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, a butterfly valve with adjustable flow comprises a valve body 2, a valve plate 1 and a valve rod 11, wherein an installation table 12 is arranged in the middle of the valve body 2, a shell 3 is arranged on the installation table 12, a transmission mechanism is arranged in the shell 3, one end of the valve rod 11 is connected with the transmission mechanism, the other end of the valve rod passes through the valve body 2 and then is connected with the valve plate 1, one end of the valve rod 11 far away from the valve plate 1 is provided with a connecting rod 14 penetrating through the shell 3, an arrow pointer 4 is fixedly arranged on the connecting rod 14 through a bolt, the surface of the shell 3 is provided with an angle scale mark 5 with an arc-shaped structure, one side of the shell 3 is provided with a boss 8, a transmission rod 10 is arranged in the boss 8, one end of the transmission rod 10 is connected with the transmission mechanism, the other end of the transmission rod 10 is provided with a hand wheel 9, and a limiting piece 7 limiting rotation of the transmission rod 10 is arranged on the boss 8.

The drive mechanism comprises a drive bevel gear 13 and a driven bevel gear 15, wherein the drive bevel gear 13 is fixed at the end part of the drive rod 10, the driven bevel gear 15 is fixed at the end part of the valve rod 11, the drive bevel gear 13 is meshed with the driven bevel gear 15, the drive bevel gear 13 and the driven bevel gear 15 are used for driving so that the valve rod 11 and the valve plate 1 are more labor-saving in rotation, one sides of the drive bevel gear 13 and the driven bevel gear 15 are respectively provided with a supporting table 24 in contact with the shell 3, and the supporting tables 24 can reduce the contact area between the drive bevel gear 13 and the driven bevel gear 15 and the shell 3, so that the abrasion of the drive bevel gear 13 and the driven bevel gear 15 is reduced.

The limiting piece 7 comprises a first limiting bolt 20, a first spring 21, a convex column 22 and a limiting column 18, wherein one end of the convex column 22 is connected with the transmission rod 10 through a bolt 17, the other end of the convex column 22 is provided with a limiting groove 26, a clamping block 25 matched with the limiting groove 26 is arranged on the limiting column 18, a convex part 16 vertical to the transmission rod 10 is arranged on the boss 8, one end of the first limiting bolt 20 penetrates through the convex part 16 and is fixedly connected with the limiting column 18, the first spring 21 is positioned at the inner side of the convex part 16 and applies an acting force close to the convex column 22 to the limiting column 18, a threaded sleeve 19 for controlling the height of the first limiting bolt 20 is in threaded connection with the convex part 16, the heights of the limiting column 18 and the first limiting bolt 20 can be adjusted through the knob threaded sleeve 19, the limiting post 18 is enabled to upwardly compress the first spring 21, the clamping block 25 is separated from the limiting groove 26, limiting of the transmission rod 10 can be relieved, when the threaded sleeve 19 is reversely rotated, the limiting post 18 and the clamping block 25 move downwards under the action of the first spring 21, the clamping block 25 is embedded into the limiting groove 26, rotation of the transmission rod 10 can be limited, the valve rod 11 and the hand wheel 9 cannot rotate, the valve plate 1 can be kept in a certain state and cannot swing, the plug 23 is arranged below the boss 8 corresponding to the protruding portion 16, the limiting post 18 and the first spring 21 can be installed into the protruding portion 16 from the position in a direction through a through hole for installing the plug 23, and finally the valve plate is sealed by the plug 23.

The shell 3 is further provided with a lubrication mechanism 6 facing the driving bevel gear 13 and the driven bevel gear 15, the lubrication mechanism 6 comprises an oil reservoir 28, a second limit bolt 30, a sealing plug 27 and a second spring 29, the oil reservoir 28 is arranged on the shell 3, one end of the second limit bolt 30 is located at the outer side of the oil reservoir 28, a gap is reserved between the other end of the second limit bolt and the oil reservoir 28, the sealing plug 27 is of a cone structure and is located at the inner side of the shell 3, the sealing plug 27 is fixedly connected with the second limit bolt 30, the second spring 29 is sleeved at the outer side of the second limit bolt 30 and applies acting force for sealing the oil reservoir 28 to the sealing plug 27, the sealing plug 31 is further arranged on the oil reservoir 28, the second spring 29 is compressed by pressing down, and drives the sealing plug 27 to move downwards, and lubricating oil in the oil reservoir 28 flows out of the gap between the second limit bolt 30 and the oil reservoir 28 and drops at the meshing position of the driving bevel gear 13 and the driven bevel gear 15 along the second limit bolt 27, so that resistance in transmission can be reduced, the second spring 29 can not be added with the sealing plug 31 when the second limit bolt 30 is reset, and the sealing plug 30 can not be added with the sealing plug force when the second limit bolt 30 is required.

Working principle: when the opening angle of the valve plate 1 needs to be controlled, the knob thread sleeve 19 is used for enabling the first limit bolt 20 to drive the clamping block 25 to be separated from the limit groove 26 upwards, then the hand wheel 9 is rotated, after the arrow pointer 4 is controlled to rotate a preset angle, the thread sleeve 19 is rotated reversely, the clamping block 25 is embedded into the limit groove 26 under the action of the first spring 21, and the transmission rod 10 cannot rotate, so that the valve plate 1 is guaranteed to be in a not fully opened state, and even if the valve plate is impacted by fluid, the valve plate cannot rotate or swing, and therefore the flow of the fluid in the butterfly valve can be accurately regulated.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a flow adjustable butterfly valve, includes valve body (2), valve plate (1) and valve rod (11), its characterized in that, the middle part of valve body (2) is provided with mount table (12), be provided with casing (3) on mount table (12), be provided with drive mechanism in casing (3), the one end and the drive mechanism of valve rod (11) are connected, and the other end passes behind valve body (2) and is connected with valve plate (1), the one end that valve plate (1) was kept away from to valve rod (11) has connecting rod (14) that run through casing (3), there is arrow pointer (4) through bolt fixed mounting on connecting rod (14), the surface of casing (3) has angle scale mark (5) of arc structure, one side of casing (3) is provided with boss (8), be provided with transfer line (10) in boss (8), the one end and the drive mechanism of transfer line (10) are connected, the other end is provided with hand wheel (9), be provided with on boss (8) restriction transfer line (10) pivoted spacing piece (7).

2. A flow adjustable butterfly valve according to claim 1, characterized in that the transmission comprises a drive bevel gear (13) and a driven bevel gear (15), the drive bevel gear (13) being fixed at the end of the transmission rod (10), the driven bevel gear (15) being fixed at the end of the valve stem (11), the drive bevel gear (13) being in engagement with the driven bevel gear (15).

3. A butterfly valve with adjustable flow according to claim 2, characterized in that the drive bevel gear (13) and the driven bevel gear (15) each have a support table (24) on one side in contact with the housing (3).

4. The butterfly valve with adjustable flow according to claim 1, characterized in that the limiting piece (7) comprises a first limiting bolt (20), a first spring (21), a convex column (22) and a limiting column (18), one end of the convex column (22) is connected with the transmission rod (10) through a bolt (17), the other end of the convex column is provided with a limiting groove (26), the limiting column (18) is provided with a clamping block (25) matched with the limiting groove (26), the boss (8) is provided with a convex part (16) perpendicular to the transmission rod (10), one end of the first limiting bolt (20) is fixedly connected with the limiting column (18) after penetrating through the convex part (16), the first spring (21) is located on the inner side of the convex part (16) and applies acting force close to the convex column (22) to the limiting column (18), and the convex part (16) is connected with a threaded sleeve (19) for controlling the height of the first limiting bolt (20) in a threaded manner.

5. The butterfly valve according to claim 4, characterized in that a plug (23) is arranged below the boss (8) in correspondence of the projection (16).

6. The butterfly valve with adjustable flow according to claim 2, characterized in that the housing (3) is further provided with a lubrication mechanism (6) opposite to the drive bevel gear (13) and the driven bevel gear (15), the lubrication mechanism (6) comprises an oil reservoir (28), a second limit bolt (30), a blocking piece (27) and a second spring (29), the oil reservoir (28) is installed on the housing (3), one end of the second limit bolt (30) is located at the outer side of the oil reservoir (28), a gap is reserved between the other end of the second limit bolt (30) and the oil reservoir (28), the blocking piece (27) is in a cone structure and is located at the inner side of the housing (3), the blocking piece (27) is fixedly connected with the second limit bolt (30), the second spring (29) is sleeved on the outer side of the second limit bolt (30), and applies a force of the blocking piece (27) to block the oil reservoir (28), and a sealing plug (31) is further arranged on the oil reservoir (28).