Manual butterfly valve opening degree fixing device

Abstract

The utility model discloses a manual butterfly valve opening degree fixing device, which relates to the technical field of manual butterfly valves, and comprises a fixed disc, a rotating disc is arranged above the fixed disc, a connecting cylinder is arranged between the rotating disc and the fixed disc, one end of a wrench is arranged in the middle of the fixed disc, and the other end of the wrench is connected with the rotating disc. A rotating groove is formed in the position, corresponding to the wrench, of the connecting cylinder, an adjusting groove is formed in the position, corresponding to the wrench, of the rotating disc, a fixing plate is fixedly connected to the position, at the upper end of the adjusting groove, of the wrench through a bolt, and an adjusting bolt is arranged between the fixing plate and the adjusting groove in a penetrating mode. The lower end of the adjusting bolt and the lower portion of the adjusting groove are connected with an adjusting fixing block through threads, the opening degree of the handle is fixed through fixed connection of the adjusting bolt and the adjusting groove, in this way, not less than several fixed angles exist, and stepless adjustment can be conducted on the opening degree of the butterfly valve.

Description

Technical Field

[0001] The utility model relates to the technical field of manual butterfly valves, in particular to a manual butterfly valve opening fixing device. Background Art

[0002] Manual butterfly valve is a common fluid control valve used to control the flow of media in pipes or pipelines. It is simple, compact and reliable and is widely used in the industrial field. The manual butterfly valve controls the flow of the medium by rotating the valve disc. Its structure consists of a valve body, a valve stem, a valve disc and a seal. When the valve disc and the valve seat match accurately, the rotation angle of the valve disc can be continuously adjusted from fully closed to fully open. The operator can rotate the valve disc as needed to control the flow of the medium. The traditional manual valve adjustment handle fixing device usually fixes the handle opening through a slot. This method has the problem that there are only a few fixed angles and the opening of the butterfly valve cannot be infinitely adjusted. Utility Model Content

[0003] The purpose of the utility model is to provide a manual butterfly valve opening fixing device to solve the problem that the traditional manual valve adjustment handle fixing device proposed in the above background technology usually fixes the handle opening through a slot, and this method has only a few fixed angles and cannot perform stepless adjustment of the butterfly valve opening.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manual butterfly valve opening fixing device comprises a fixed plate, a through groove is provided on one side of the fixed plate, a rotating plate is provided above the fixed plate, a connecting tube is provided between the rotating plate and the fixed plate, one end of a wrench is provided at the middle position of the fixed plate, a rotating groove is provided at the position of the connecting tube corresponding to the wrench, the wrench extends to the outside of the connecting tube through the rotating groove, an adjusting groove is provided on the rotating plate at the position corresponding to the wrench, a fixing plate is fixedly connected to the wrench and at the upper end of the adjusting groove by bolts, an adjusting bolt is passed through between the fixing plate and the adjusting groove, an adjusting fixing block is connected to the lower end of the adjusting bolt and below the adjusting groove by threads, and the adjusting fixing block, the adjusting bolt and the fixing plate clamp and fix the adjusting groove.

[0005] Preferably, an opening is penetrated through the middle position of the fixed plate, a square column is penetrated inside the opening, the upper end of the square column is clamped with the wrench, a fixing bolt is penetrated through the position of the upper end of the wrench corresponding to the square column, and the fixing bolt is threadedly connected to the square column.

[0006] Preferably, an indicator needle is provided at the inner end of the wrench, and a scale is provided on the side of the upper surface of the rotating disk opposite to the adjustment groove, and the indicator needle is arranged corresponding to the scale.

[0007] Preferably, anti-slip pads are provided at positions of the upper and lower outer surfaces of the rotating disk corresponding to the adjustment grooves, and the adjustment fixing block and the adjustment bolt abut against the anti-slip pads.

[0008] Preferably, limiting grooves are provided on the upper surface of the wrench and on both sides of the fixing plate, and the fixing plate is snap-connected with the limiting grooves.

[0009] Compared with the prior art, the beneficial effect of the utility model is: instead of the traditional manual valve adjustment handle fixing device that fixes the handle opening through a slot, the handle opening is fixed by a fixed connection between the adjusting bolt and the adjusting slot. This method not only has several fixed angles, but also can perform stepless adjustment on the opening of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an axonometric drawing of the main structure of the utility model;

[0011] Figure 2 It is an axonometric cross-sectional view of the main structure of the utility model;

[0012] Figure 3 This is a front cross-sectional view of the main structure of the utility model;

[0013] Figure 4 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 5 It is a top view schematic diagram of the main structure of the utility model.

[0015] In the figure: 1-fixed disk, 2-through slot, 3-rotating disk, 4-connecting tube, 5-wrench, 6-rotating slot, 7-adjusting slot, 8-fixed plate, 9-adjusting bolt, 10-adjusting fixed block, 11-opening, 12-square column, 13-fixing bolt, 14-indicator needle, 15-scale, 16-anti-slip pad, 17-limiting slot. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-5The utility model provides a manual butterfly valve opening fixing device, comprising a fixed disk 1, wherein the fixed disk 1 has a through slot 2 on one side thereof, a rotating disk 3 is provided above the fixed disk 1, a connecting tube 4 is provided between the rotating disk 3 and the fixed disk 1, one end of a wrench 5 is provided at the middle position of the fixed disk 1, a rotating slot 6 is provided at a position corresponding to the connecting tube 4 and the wrench 5, the wrench 5 extends to the outside of the connecting tube 4 through the rotating slot 6, an adjusting slot 7 is provided at a position corresponding to the wrench 5 on the rotating disk 3, a fixing plate 8 is fixedly connected to the wrench 5 and at the upper end of the adjusting slot 7 by bolts, an adjusting bolt 9 is penetrated between the fixing plate 8 and the adjusting slot 7, an adjusting fixing block 10 is connected to the lower end of the adjusting bolt 9 and below the adjusting slot 7 by threads, and the adjusting fixing block 10, the adjusting bolt 9 and the fixing plate 8 clamp and fix the adjusting slot 7.

[0018] When in use, the fixed disk 1 is fixed to the valve stem position of the butterfly valve by bolts, and the wrench 5 is set inside the fixed disk 1 by setting a through groove 2 on the connecting tube 4, and the wrench 5 is fixed to the valve stem of the gate valve. The valve stem is driven to rotate by rotating the wrench 5 along the rotating groove 6, thereby controlling the opening and closing of the gate valve. When the wrench 5 is rotated, the fixed disk 1 is fixed to the gate valve, thereby keeping the rotating disk 3 stationary. The rotating disk 3 is set inside the wrench 5 through the fixed plate 8, and the adjusting groove 7 is penetrated by the adjusting bolt 9, and the adjusting fixing block 10 is threadedly connected at the lower end of the adjusting bolt 9. The adjusting groove 7 is clamped and fixed by the adjusting bolt 9, the fixing plate 8 and the adjusting fixing block 10, so that the opening degree of the gate valve is fixed, and the switching degree can be infinitely adjusted.

[0019] An opening 11 is penetrated through the middle position of the fixed disk 1, and a square column 12 is penetrated inside the opening 11. The upper end of the square column 12 is clamped with the wrench 5, and a fixing bolt 13 is penetrated through the position of the upper end of the wrench 5 corresponding to the square column 12. The fixing bolt 13 is threadedly connected with the square column 12. By setting the opening 11 at the lower end of the fixed disk 1, connecting the wrench 5 to the valve stem through the square column 12, and fixing the wrench 5 to the upper end of the square column 12 by the fixing bolt 13, it is ensured that rotating the wrench 5 can drive the valve stem to rotate.

[0020] An indicator needle 14 is provided at the inner end of the wrench 5, and a scale 15 is provided on the upper surface of the rotating disk 3 on the side opposite to the adjusting groove 7. The indicator needle 14 and the scale 15 are arranged correspondingly. By arranging the indicator needle 14 on the inner side of the wrench 5 and setting the scale 15 on the rotating disk 3, the opening angle of the gate valve is displayed by the degree of the indicator needle 14 on the scale 15.

[0021] Anti-skid pads 16 are provided on the upper and lower outer surfaces of the rotating disk 3 at positions corresponding to the adjusting groove 7, and the adjusting fixing block 10 and the adjusting bolt 9 are against the anti-skid pads 16. By providing the anti-skid pads 16 on the outer side of the adjusting groove 7, the adjusting fixing block 19 and the adjusting bolt 9 are prevented from sliding on the adjusting groove 7, thereby ensuring the firmness of the adjusting fixing block 19 and the adjusting bolt 9 in clamping the adjusting groove 7.

[0022] Limiting grooves 17 are provided on the upper surface of the wrench 5 and on both sides of the fixing plate 8 , and the fixing plate 8 is engaged with the limiting grooves 17 . By providing the limiting grooves 17 on the wrench 5 , the position of the fixing plate 8 on the wrench 5 is limited.

[0023] 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 manual butterfly valve opening fixing device, characterized in that: The invention comprises a fixed disk (1), wherein a through groove (2) is provided on one side of the fixed disk (1), a rotating disk (3) is provided above the fixed disk (1), a connecting tube (4) is provided between the rotating disk (3) and the fixed disk (1), one end of a wrench (5) is provided at a middle position of the fixed disk (1), a rotating groove (6) is provided at a position corresponding to the connecting tube (4) and the wrench (5), the wrench (5) extends out of the connecting tube (4) through the rotating groove (6), and the rotating disk ( 3) is provided with an adjustment groove (7) at a position corresponding to the wrench (5); a fixing plate (8) is fixedly connected to the upper end of the adjustment groove (7) on the wrench (5) by bolts; an adjustment bolt (9) is passed through between the fixing plate (8) and the adjustment groove (7); an adjustment fixing block (10) is connected to the lower end of the adjustment bolt (9) and below the adjustment groove (7) by threads; the adjustment fixing block (10), the adjustment bolt (9) and the fixing plate (8) clamp and fix the adjustment groove (7).

2. A manual butterfly valve opening fixing device according to claim 1, characterized in that: An opening (11) is provided through the middle of the fixing plate (1), a square column (12) is provided through the interior of the opening (11), the upper end of the square column (12) is clamped with the wrench (5), a fixing bolt (13) is provided through the upper end of the wrench (5) at a position corresponding to the square column (12), and the fixing bolt (13) is threadedly connected to the square column (12).

3. A manual butterfly valve opening fixing device according to claim 1, characterized in that: An indicator needle (14) is provided at the inner end of the wrench (5), and a scale (15) is provided on the upper surface of the rotating disk (3) on the side opposite to the adjustment slot (7), and the indicator needle (14) is arranged corresponding to the scale (15).

4. A manual butterfly valve opening fixing device according to claim 1, characterized in that: Anti-skid pads (16) are provided at positions on the upper and lower outer surfaces of the rotating disk (3) corresponding to the adjustment groove (7), and the adjustment fixing block (10) and the adjustment bolt (9) abut against the anti-skid pads (16).

5. A manual butterfly valve opening fixing device according to claim 1, characterized in that: Limiting grooves (17) are provided on the upper surface of the wrench (5) and on both sides of the fixing plate (8), and the fixing plate (8) is clamped with the limiting grooves (17).

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