High-controllability butterfly valve rocker

Abstract

The utility model discloses a butterfly valve rocker with high controllability, which comprises a butterfly valve body, a driving box and a switch rotating shaft, the butterfly valve body is used for supporting a valve body mechanism, the driving box is arranged above the butterfly valve body, a valve driving mechanism is arranged in the driving box, and the switch rotating shaft is arranged in the valve driving mechanism. The switch rotating shaft is connected to a driving mechanism in the driving box and extends out of the driving box, and a switch angle adjusting structure, an angle locking structure and a control rocker structure are arranged on the driving box; the utility model relates to the technical field of butterfly valve rocker control, and has the following beneficial effects: through the opening and closing angle adjusting structure, the opening angle of the valve can be set in advance, the set angle is locked through the angle locking structure, and then the valve is twisted by controlling the rocker structure, so that the valve can be opened conveniently. And the valve can be opened and closed at a fixed angle until the opening and closing angle adjusting structure abuts against the control rocker, so that the flow notification is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve rocker control, in particular to a butterfly valve rocker with high controllability. Background Art

[0002] A butterfly valve is a regulating valve with a simple structure. It can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member (valve disc or butterfly plate) as a disc, which rotates around the valve axis to achieve opening and closing. The traditional butterfly valve switch rocker can only control the opening and closing of the valve, but cannot control the water flow rate according to the situation. Once the water flow rate needs to be reduced, the switch rocker needs to be installed and rotated to the appropriate position at a predetermined angle, but manual control often causes the angle to deviate, resulting in inaccurate water flow control. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-controllability butterfly valve rocker, comprising a butterfly valve body, a drive box and a switch shaft, wherein the butterfly valve body is used to support a valve body mechanism, the drive box is installed above the butterfly valve body, a valve drive mechanism is arranged inside the drive box, the switch shaft is connected to the drive mechanism inside the drive box and extends out of the drive box, and a switch angle adjustment structure, an angle locking structure and a control rocker structure are arranged on the drive box;

[0004] The switch angle adjustment structure includes: an axis hole, an adjustment disk, a dial, a rotating slide rail, a slide slot and a rotating frame;

[0005] The shaft hole is provided on the adjusting disk, the adjusting disk is mounted on the top of the driving box and is sleeved on the switch shaft through the shaft hole, the dial is mounted on the adjusting disk through bolts, the slide groove is provided around the shaft hole, the rotating slide rail is mounted on the bottom of the rotating frame, and the rotating frame is mounted in the slide groove through the rotating slide rail. The valve opening angle can be set and controlled through this structure.

[0006] Preferably, the angle locking structure comprises: a sawtooth groove, a pointer frame, a cylinder groove and a telescopic cylinder;

[0007] The sawtooth groove is formed on the inner wall of the adjusting plate and the dial, the cylinder groove is formed on the front end of the rotating frame, the telescopic cylinder is installed in the cylinder groove, and the pointer frame is connected to the telescopic end of the telescopic cylinder. The set angle can be locked through this structure.

[0008] Preferably, the tip of the sawtooth groove corresponds to each angle scale line on the dial.

[0009] Preferably, the control rocker structure comprises: a control rocker, a brake column and a brake groove;

[0010] The control rocker is installed at the upper end of the switch shaft, the brake column is installed below the brake column, and the brake groove is opened on the side of the rotating frame. Through this structure, the valve can be conveniently controlled manually.

[0011] Preferably, all ends of the pointer frame are provided with pointer heads that adapt to the shape of the sawtooth groove.

[0012] Preferably, the pointer frame is provided with an auxiliary push rod and a cylinder switch.

[0013] Beneficial Effects

[0014] This high-controllability butterfly valve rocker has the following beneficial effects:

[0015] In this case, the switch angle adjustment structure is used to set the angle at which the valve needs to be opened in advance and lock the set angle through the angle locking structure. Then, the valve is twisted by controlling the rocker structure until the switch angle adjustment structure presses the control rocker to complete the switch valve at a fixed angle, making the flow notification more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1-2 The three-dimensional appearance structure schematic diagram of a high-controllability butterfly valve rocker described in the utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the main structure of a high-controllability butterfly valve rocker described in the utility model.

[0018] Figure 4-5 The utility model is a schematic diagram of the switch angle adjustment structure of a high-controllability butterfly valve rocker.

[0019] Figure 6 It is a partially enlarged schematic diagram of the switch angle adjustment structure of a high-controllability butterfly valve rocker described in the utility model.

[0020] In the figure: 1. Butterfly valve body; 2. Drive box; 3. Switch shaft; 4. Shaft hole; 5. Adjustment plate; 6. Scale plate; 7. Rotating slide rail; 8. Slide groove; 9. Rotating frame; 10. Sawtooth groove; 11. Pointer frame; 12. Cylinder groove; 13. Telescopic cylinder; 14. Control rocker; 15. Brake column; 16. Brake groove; DETAILED DESCRIPTION

[0021] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0022] See also Figure 1-6 , the utility model provides a technical solution.

[0023] A high-controllability butterfly valve rocker, comprising a butterfly valve body 1, a drive box 2 and a switch shaft 3, wherein the butterfly valve body 1 is used to support a valve body mechanism, the drive box 2 is installed above the butterfly valve body 1, a valve drive mechanism is arranged inside the drive box 2, the switch shaft 3 is connected to the drive mechanism inside the drive box 2 and extends out of the drive box 2, and a switch angle adjustment structure, an angle locking structure and a control rocker structure are arranged on the drive box 2;

[0024] The switch angle adjustment structure includes: an axis hole 4, an adjustment disk 5, a scale plate 6, a rotating slide rail 7, a slide slot 8 and a rotating frame 9;

[0025] The axial hole 4 is opened on the adjusting disk 5, the adjusting disk 5 is installed on the top of the driving box 2, and is sleeved on the switch shaft 3 through the axial hole 4, the dial 6 is installed on the adjusting disk 5 by bolts, the slide groove 8 is opened around the axial hole 4, the rotating slide rail 7 is installed at the bottom of the rotating frame 9, and the rotating frame 9 is installed in the slide groove 8 through the rotating slide rail 7.

[0026] It should be noted that when adjusting the valve opening angle, the rotating frame 9 can be pushed to rotate in the slide groove 8 through the rotating slide rail 7, and then the rotating frame 9 can be rotated and adjusted in the dial 6.

[0027] As a preferred embodiment, further, the angle locking structure comprises: a sawtooth groove 10, a pointer frame 11, a cylinder groove 12 and a telescopic cylinder 13;

[0028] The sawtooth groove 10 is formed on the inner wall of the adjusting plate 5 and the scale plate 6 , the cylinder groove 12 is formed on the front end of the rotating frame 9 , the telescopic cylinder 13 is installed in the cylinder groove 12 , and the pointer frame 11 is connected to the telescopic end of the telescopic cylinder 13 .

[0029] It should be noted that after the rotating frame 9 is adjusted to a suitable angle, the telescopic cylinder 13 is activated, and then the pointer frame 11 can be pushed into the sawtooth groove 10 of the corresponding scale, so that the rotation of the rotating frame 9 is locked.

[0030] Preferably, further, the tip of the sawtooth groove 10 corresponds to each angle scale line on the dial 6 respectively.

[0031] It should be noted that the use of 360 sawtooth grooves 10 corresponding to the angle scale lines can make the adjustment of the angle of the pointer frame 11 more accurate.

[0032] As a preferred embodiment, further, the control rocker structure comprises: a control rocker 14, a brake column 15 and a brake groove 16;

[0033] The control rocker 14 is installed at the upper end of the switch shaft 3 , the brake column 15 is installed below the brake column 15 , and the brake groove 16 is opened on the side of the rotating frame 9 .

[0034] It should be noted that after the valve body switching angle is adjusted, the control rocker 14 is rotated to drive the switch shaft 3 to rotate, and the brake column 15 can also be driven to rotate until the brake column 15 is rotated into the brake groove 16 for braking, thereby limiting the rotation of the switch shaft 3, thereby ensuring the accuracy of the valve switching angle.

[0035] Preferably, further, all ends of the pointer frame 11 are provided with pointer heads that adapt to the shape of the sawtooth groove 10 .

[0036] It should be noted that the front end of the pointer head having the same shape as the sawtooth groove 10 can ensure that the pointer head does not shake after being pushed into the sawtooth groove 10 .

[0037] Preferably, further, the pointer frame 11 is provided with an auxiliary push rod and a cylinder switch.

[0038] It should be noted that the auxiliary push rod can assist in controlling the rotation of the pointer frame 11 , and the cylinder switch can conveniently control the extension and retraction process of the telescopic cylinder 13 .

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-controllability butterfly valve rocker, comprising a butterfly valve body, a drive box and a switch shaft, wherein the butterfly valve body is used to support a valve body mechanism, the drive box is installed above the butterfly valve body, a valve drive mechanism is arranged inside the drive box, and the switch shaft is connected to the drive mechanism inside the drive box and extends out of the drive box, characterized in that: The drive box is provided with a switch angle adjustment structure, an angle locking structure and a control rocker structure; The switch angle adjustment structure includes: an axis hole, an adjustment disk, a dial, a rotating slide rail, a slide slot and a rotating frame; The shaft hole is provided on the adjusting disk, the adjusting disk is mounted on the top of the driving box and is sleeved on the switch shaft through the shaft hole, the dial is mounted on the adjusting disk through bolts, the slide groove is provided around the shaft hole, the rotating slide rail is mounted on the bottom of the rotating frame, and the rotating frame is mounted in the slide groove through the rotating slide rail.

2. A high controllability butterfly valve rocker according to claim 1, characterized in that: The angle locking structure comprises: a sawtooth groove, a pointer frame, a cylinder groove and a telescopic cylinder; The sawtooth groove is formed on the inner wall of the adjusting plate and the scale plate, the cylinder groove is formed on the front end of the rotating frame, the telescopic cylinder is installed in the cylinder groove, and the pointer frame is connected to the telescopic end of the telescopic cylinder.

3. A high controllability butterfly valve rocker according to claim 2, characterized in that: The tip of the sawtooth groove corresponds to each angle scale line on the dial.

4. The high controllability butterfly valve rocker according to claim 1, characterized in that: The control rocker structure comprises: a control rocker, a brake column and a brake groove; The control rocker is installed at the upper end of the switch shaft, the brake column is installed below the brake column, and the brake groove is opened on the side of the rotating frame.

5. The high controllability butterfly valve rocker according to claim 2, characterized in that: The entire end of the pointer frame is provided with a pointer head adapted to the shape of the sawtooth groove.

6. A high controllability butterfly valve rocker according to claim 2, characterized in that: An auxiliary push rod and a cylinder switch are arranged on the pointer frame.

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