A butterfly valve driving mechanism anti-loosening fixing assembly

Abstract

The utility model relates to industrial valve manufacturing technical field discloses a kind of driving mechanism anti-loosening fixing assembly for butterfly valve, including main body, the inside of main body is provided with main shaft, the left side of main shaft is provided with split snap ring, the front side of split snap ring is provided with end cap one, end cap one is installed on main body by bolt one, the front side of end cap one is provided with end cap two, end cap two is installed on end cap one by bolt two, pin is provided between end cap one and end cap two, metal buttonhole one and metal buttonhole two are provided on bolt one, medium one is provided between main body and end cap one. In the utility model, limit position is calibrated by pin during installation, double fixing is combined with the alternate distribution of pin and bolt, driving mechanism stroke is accurately limited, component displacement after repeated opening and closing is prevented, ensure that butterfly valve always maintains accurate opening and closing performance, adapt to the stringent requirement of industrial fluid control to precision.

Description

Technical Field

[0001] This utility model relates to the field of industrial valve manufacturing technology, and in particular to an anti-loosening fixing component for a butterfly valve drive mechanism. Background Technology

[0002] In industrial fluid control systems, butterfly valves are widely used in water supply and drainage, chemical, and metallurgical fields due to their compact structure and rapid opening and closing. As the core actuator, the drive mechanism needs to achieve precise opening and closing of the valve plate through spindle transmission. The connection stability between the spindle and the housing, the sealing performance of the end cover, and the anti-loosening effect of the fasteners directly determine the operating accuracy and service life of the butterfly valve.

[0003] In actual working conditions, fluctuations in pipeline medium pressure, equipment vibration, and long-term alternating loads can easily lead to loose bolts, seal failure, or spindle movement in traditional fixed structures, causing problems such as medium leakage and jamming during opening and closing, increasing maintenance costs and safety hazards.

[0004] Therefore, an anti-loosening fixing component for the drive mechanism of a butterfly valve is provided to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an anti-loosening fixing component for the drive mechanism of a butterfly valve, which aims to improve the problems of unstable operation, decreased accuracy, and frequent maintenance caused by bolt loosening, spindle movement, seal failure, and inaccurate opening and closing positioning in the long-term operation of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a butterfly valve drive mechanism anti-loosening fixing component, comprising a main body, a main shaft disposed inside the main body, a dividing retaining ring disposed on the left side of the main shaft, an end cap one disposed on the front side of the dividing retaining ring, the end cap one being mounted on the main body by a bolt one, an end cap two disposed on the front side of the end cap one, the end cap two being mounted on the end cap one by a bolt two, and a pin being disposed between the end cap one and the end cap two.

[0007] Furthermore, the bolt is provided with a metal eyelet 1 and a metal eyelet 2.

[0008] Furthermore, a medium is provided between the main body and the end cap.

[0009] Furthermore, a medium two is provided on the inner side of the end cap one.

[0010] Furthermore, the bolt is threaded inside the body.

[0011] Furthermore, the bolt is threaded into the interior of the end cap.

[0012] Furthermore, the pin passes through end cap one and end cap two, and the pin and bolt two are alternately arranged.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the main shaft is axially positioned by a segmented retaining ring, the first medium enhances the sealing, the second medium reduces wear, and the metal eyelet anti-loosening structure restricts the bolt rotation. The synergistic effect of multiple designs effectively avoids main shaft movement, medium leakage and bolt loosening, ensuring stable operation of the butterfly valve under long-term alternating loads and reducing maintenance frequency.

[0014] 2. In this utility model, the limit position is marked by pins during installation. Combined with the double fixation of alternating pins and bolts, the stroke of the drive mechanism is precisely limited, preventing the components from shifting after repeated opening and closing. This ensures that the butterfly valve always maintains precise opening and closing performance and meets the stringent precision requirements of industrial fluid control. Attached Figure Description

[0015] Figure 1 This is a perspective view of an anti-loosening fixing component for a butterfly valve drive mechanism proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of an anti-loosening fixing component for a butterfly valve drive mechanism proposed in this utility model; Figure 3 This is a partial structural diagram of an anti-loosening fixing component for a butterfly valve drive mechanism proposed in this utility model.

[0016] Legend: 1. Main body; 2. Main shaft; 3. Dividing ring; 4. Medium 1; 5. Medium 2; 6. Bolt 1; 7. Metal buttonhole 1; 8. Metal buttonhole 2; 9. End cap 1; 10. End cap 2; 11. Pin; 12. Bolt 2. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-3An embodiment of this utility model provides: a butterfly valve drive mechanism anti-loosening fixing component, including a main body 1, a main shaft 2 is provided inside the main body 1, a dividing ring 3 is provided on the left side of the main shaft 2, an end cap 9 is provided on the front side of the dividing ring 3, the end cap 9 is installed on the main body 1 by bolt 6, an end cap 10 is provided on the front side of the end cap 9, the end cap 10 is installed on the end cap 9 by bolt 12, a pin 11 is provided between the end cap 9 and the end cap 10, a metal buckle eye 7 and a metal buckle eye 8 are provided on the bolt 6, a medium 4 is provided between the main body 1 and the end cap 9, a medium 5 is provided inside the end cap 9, the bolt 6 is threaded to the inside of the main body 1, the bolt 12 is threaded to the inside of the end cap 9, the pin 11 passes through the end cap 9 and the end cap 10, and the pin 11 and the bolt 12 are alternately arranged; Specifically, the main shaft 2 inside the main body 1 is axially limited by the clamping action of the dividing snap ring 3, preventing axial movement of the main shaft 2 during operation; the end cover 9 is connected to the main body 1 by bolt 6, and the medium 5 inside it can reduce friction and wear between the main shaft 2 and the end cover 9, ensuring smooth operation of the components; the medium 4 between the main body 1 and the end cover 9 can fill the gap, block the medium leakage channel, and enhance the overall sealing performance; after the metal buckle 7 and metal buckle 8 on the bolt 6 are engaged, the rotation tendency of the bolt 6 can be restricted, achieving an anti-loosening effect, thus realizing the stable positioning and sealing of key components of the drive mechanism. For protection and connection to prevent loosening, during installation, first loosen bolt 212 to remove end cover 210. When the drive device is in the fully open and fully closed extreme states respectively, insert pin 11 through end cover 19 into the corresponding positioning hole to mark the extreme position of the drive mechanism. After positioning, pull out pin 11, and then fix end cover 210 to end cover 19 with bolt 212. The installation positions of pin 11 and bolt 212 are alternately distributed to form a dual fixing structure of mechanical positioning and threaded connection. This achieves accurate calibration of the extreme position of the drive mechanism and ensures that the butterfly valve maintains stable operating accuracy during repeated opening and closing.

[0019] Working principle: When using this device, the main shaft 2 inside the main body 1 is axially positioned by the dividing snap ring 3. The end cover 9 is connected to the main body 1 by bolt 6. The medium 5 inside the end cover 9 ensures lubrication. The medium 4 between the main body 1 and the end cover 9 enhances the sealing. The metal buckle 7 on the bolt 6 is engaged with the metal buckle 8 to prevent loosening. During installation, first remove end cover 2 10. With the drive device fully open and closed, insert pin 11 through end cover 1 9. After positioning, remove pin 11. Then install end cover 2 10 using bolt 2 12. Pin 11 and bolt 2 12 are alternately set to form multiple fixation to prevent the drive mechanism from loosening and ensure stable operation of the butterfly valve.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A butterfly valve driving mechanism anti-loosening fixing assembly, comprising a main body (1), characterized in that: The main body (1) is provided with a main shaft (2) inside. A dividing ring (3) is provided on the left side of the main shaft (2). An end cap (9) is provided on the front side of the dividing ring (3). The end cap (9) is installed on the main body (1) by a bolt (6). An end cap (10) is provided on the front side of the end cap (9). The end cap (10) is installed on the end cap (9) by a bolt (12). A pin (11) is provided between the end cap (9) and the end cap (10).

2. The anti-loosening fixing assembly of a drive mechanism for a butterfly valve according to claim 1, characterized in that: The bolt one (6) is provided with metal buckle one (7) and metal buckle two (8).

3. The anti-loosening fixing assembly of the drive mechanism for the butterfly valve according to claim 1, characterized in that: A medium (4) is provided between the main body (1) and the end cap (9).

4. The anti-loosening fixing assembly of a drive mechanism for a butterfly valve according to claim 1, characterized in that: Medium 2 (5) is provided on the inner side of the end cap 1 (9).

5. The anti-loosening fixing assembly of a drive mechanism for a butterfly valve according to claim 1, characterized in that: The bolt (6) is threaded inside the body (1).

6. The anti-loosening fixing assembly of a drive mechanism for a butterfly valve according to claim 1, characterized in that: The second bolt (12) is threaded inside the end cap (9).

7. The anti-loosening fixing assembly of a drive mechanism for a butterfly valve according to claim 1, characterized in that: The pin (11) passes through end cap one (9) and end cap two (10), and the pin (11) and bolt two (12) are alternately arranged.

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