Valve position indicating device for manual operation of valve

Abstract

The utility model relates to the technical field of valve position indicating devices, and discloses a valve position indicating device for manual operation of a valve, which comprises an organic glass cover, a first gear is rotatably connected to the top inside the organic glass cover, a second gear is in threaded connection with the outer wall of the first gear, and a locking sleeve is arranged in the middle of the top end of the second gear. A second thrust washer is arranged at the bottom of the outer wall of the second gear, a driving screw is fixedly connected to the middle of the bottom end of the second gear, and a guide rod is arranged on one side of the outer wall of the driving screw. According to the valve position indicating device, an operator can clearly observe the opening and closing progress of the valve and whether the valve is opened and closed in place or not in the process of operating the hand wheel to open and close the valve through the extension rod, and the situation that the operator judges whether the valve is opened and closed in place or not by suddenly increasing counter-acting force transmitted to the hand through the hand wheel can be effectively avoided; and the situation that the mechanism is damaged due to the fact that an operator continues to apply torque after the valve is opened and closed in place is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of valve position indicating devices, and in particular to a valve position indicating device for manual valve operation. Background Technology

[0002] With the development of industrial automation and informatization, enterprises have increasingly higher requirements for remote monitoring and management of production processes. Manual valves, lacking online valve position recognition capabilities, cannot automatically determine their opening and closing status remotely. This makes it impossible for remote control centers and factory management to monitor their working status in real time, relying solely on manual inspection, recording, and reporting. This is not only inefficient but also prone to human error, failing to meet the needs of modern production management. The correct operation and accurate valve position indication of these manual valves are crucial for ensuring the safe, stable, and efficient operation of the production process. For example, in petrochemical production, if valves are not properly opened or closed, it can lead to material leakage and pipeline blockage, even causing safety accidents and affecting the normal operation of the entire production process.

[0003] Currently, for valves installed deep in the ground and difficult to operate, the operating end is extended to the walkway via an extension rod. This allows operators to operate the valve without having to go down into the valve well. However, when operating the handwheel to open or close the valve, the operator cannot observe the valve's opening and closing progress in real time, or whether it is fully open or closed. This can lead to the operator continuing to apply torque after the valve has been fully opened or closed, resulting in damage to the mechanism. Alternatively, the operator may judge that the valve is fully closed based on a sudden increase in the reaction force transmitted to their hand by the handwheel, when it is not actually closed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a valve position indicator device for manual valve operation, aiming to improve the problem in the existing technology where, during operation, the operator cannot observe the valve opening and closing progress in real time, or whether the valve is fully open or closed, and continues to apply torque after the valve is fully open or closed, which can lead to damage to the mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a valve position indicator for manual valve operation, comprising an plexiglass cover, a gear one rotatably connected to the top of the interior of the plexiglass cover, a gear two threadedly connected to the outer wall of the gear one, a locking sleeve provided at the top center of the gear two, a thrust washer two provided at the bottom of the outer wall of the gear two, a drive screw fixedly connected to the bottom center of the gear two, a guide rod provided on one side of the outer wall of the drive screw, a circular indicator provided at the upper middle part of the outer wall of the guide rod, and an indicator sticker provided at the lower middle part of the outer wall of the plexiglass cover.

[0006] As a further description of the above technical solution:

[0007] A protective cover is fixedly connected to the top of the plexiglass cover, and a copper pad is fixedly connected to the bottom of the gear.

[0008] As a further description of the above technical solution:

[0009] A thrust washer is provided at the bottom of the gear.

[0010] As a further description of the above technical solution:

[0011] The bottom of the thrust washer is provided with a guide rod bracket.

[0012] As a further description of the above technical solution:

[0013] A guide rod hole is provided at the bottom of the gear one.

[0014] As a further description of the above technical solution:

[0015] The bottom of the gear one is provided with drive screw holes on all four sides.

[0016] As a further description of the above technical solution:

[0017] A rotating shaft is rotatably connected to the bottom center of the first gear.

[0018] As a further description of the above technical solution:

[0019] Support plates are fixedly connected to the bottom of the outer wall of the gear.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, during installation, the manual flange of the extension rod is first removed, the indicator sticker is affixed to the surface of the extension rod sleeve, the threaded hole of the circular indicator is screwed into the drive screw hole, and the copper washer and drive screw are successively placed into the drive screw hole. The locking sleeve is then put on, and finally, the plexiglass cover and protective cover are attached to the extension rod sleeve. Therefore, the valve position indicator device allows the operator to clearly observe the valve opening and closing progress and whether the valve is fully open or closed when operating the handwheel to switch the valve via the extension rod. This effectively avoids the operator judging whether the valve is fully open or closed by the sudden increase in the reaction force transmitted to the hand by the handwheel, and also prevents the operator from continuing to apply torque after the valve is fully open or closed, which could damage the mechanism. Attached Figure Description

[0022] Figure 1 A front perspective view of a valve position indicator device for manual valve operation proposed in this utility model;

[0023] Figure 2 This is a partial structural exploded view of a valve position indicator device for manual valve operation proposed in this utility model;

[0024] Figure 3 This is a partial structural diagram of a valve position indicator device for manual valve operation proposed in this utility model;

[0025] Figure 4 This is a partial structural diagram of a valve position indicator device for manual valve operation proposed in this utility model;

[0026] Figure 5 This is a partial structural diagram of a valve position indicator device for manual valve operation proposed in this utility model.

[0027] Legend:

[0028] 1. Gear 1; 2. Thrust Washer 1; 3. Guide Rod Bracket; 4. Protective Cover; 5. Locking Sleeve; 6. Gear 2; 7. Thrust Washer 2; 8. Circular Indicator; 9. Drive Screw; 10. Guide Rod; 11. Acrylic Cover; 12. Copper Pad; 13. Guide Rod Hole; 14. Drive Screw Hole; 15. Indicator Sticker; 16. Support Plate; 17. Rotating Shaft. Detailed Implementation

[0029] 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.

[0030] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a valve position indicator device for manual valve operation, comprising an plexiglass cover 11, a gear 1 rotatably connected to the top of the interior of the plexiglass cover 11, a gear 6 threadedly connected to the outer wall of the gear 1, a locking sleeve 5 provided at the top center of the gear 6, a thrust washer 7 provided at the bottom of the outer wall of the gear 6, a drive screw 9 fixedly connected to the bottom center of the gear 6, a guide rod 10 provided on one side of the outer wall of the drive screw 9, a circular indicator 8 provided at the upper middle part of the outer wall of the guide rod 10, and an indicator sticker 15 provided at the lower middle part of the outer wall of the plexiglass cover 11.

[0031] Specifically, the component can be firmly fixed to the gear 6 by tightly fitting the top center of the internal gear 2 and locking it with a snap-fit ​​mechanism. A guide rod 10 is provided on one side of the outer wall of the drive screw 9. The guide rod 10 is made of high strength and is arranged parallel to the drive screw 9.

[0032] Please see the appendix Figure 3 - Appendix Figure 5 The bottom of gear 1 is provided with a thrust washer 2, the top of the plexiglass cover 11 is fixedly connected with a protective cover 4, the bottom of gear 1 is fixedly connected with a copper pad 12, the bottom of the thrust washer 2 is provided with a guide rod bracket 3, the bottom of gear 1 is provided with a guide rod hole 13, the bottom of gear 1 is provided with drive screw holes 14 on all four sides, the bottom of gear 1 is rotatably connected with a rotating shaft 17, and the bottom of the outer wall of gear 1 is fixedly connected with a support plate 16 on all four sides.

[0033] Specifically, a protective cover 4 is securely installed on the top of the plexiglass cover 11. The copper pad 12 acts as a buffer, reducing direct collision and friction between gear 1 and gear 1. The copper pad 12 can also effectively distribute the pressure on the bottom of gear 1, improving overall stability and reliability and extending the service life of gear 1. The guide rod 10 passes through the guide rod hole 13 and passes through gear 1. During the operation of gear 1, it can only move in a straight line along the axis of the guide rod 10. Then, through the meshing transmission between gear 1 and the components, the power is distributed to each working part to realize the normal operation of the device.

[0034] Working principle: During installation, first remove the manual flange of the extension rod, attach the indicator sticker 15 to the surface of the extension rod sleeve, screw the threaded hole of the circular indicator 8 into the drive screw hole 14, and then insert the copper washer 12 and drive screw 9 into the drive screw hole 14. Adjust the height of the circular indicator 8 to the valve opening mark on the sticker. At this time, the guide rod 10 passes through the through hole of the circular indicator 8 and is inserted into the guide rod hole 13. Then, insert the upper ends of the drive screw 9 and the guide rod 10 into the two through holes of the guide rod bracket 3 respectively. Then, fix the guide rod bracket 3 to the extension rod sleeve with the original bolts of the manual flange. Then, insert the thrust washer 2 between the guide rod bracket 3 and the drive shaft of the extension rod square tube. After that, the gear 1 is inserted into the drive shaft of the extension rod square tube and placed... On the thrust washer 2, the input shaft of the transmission shaft is placed on top to press down the gear 1. The thrust washer 7 is then placed between the drive screw 9 through hole of the guide rod bracket 3 and the guide rod bracket 3. The gear 6 is then placed on the drive screw 9 and placed on the thrust washer 7. The locking sleeve 5 is then put on. Finally, the plexiglass cover 11 and the protective cover 4 are attached to the extension rod sleeve to complete the process. Thus, the operator can clearly observe the valve opening and closing progress and whether the valve is fully open or closed when operating the handwheel to switch the valve via the extension rod through the valve position indicator device. This effectively avoids the operator judging whether the valve is fully open or closed by the sudden increase of the reaction force transmitted to the hand by the handwheel, and also prevents the operator from continuing to apply torque after the valve is fully open or closed, which could damage the mechanism.

[0035] 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 valve hand operated valve position indicator device comprising a plexiglass cover (11) characterised in that: The inside top of the organic glass cover (11) is rotationally connected with gear one (1), the outer wall of gear one (1) is threadedly connected with gear two (6), the top middle of gear two (6) is provided with locking sleeve (5), the outer wall bottom of gear two (6) is provided with thrust washer two (7), the bottom middle of gear two (6) is fixedly connected with drive screw (9), the outer wall of drive screw (9) one side is provided with guide rod (10), the outer wall middle of guide rod (10) is provided with round indicator (8), the outer wall middle of organic glass cover (11) is provided with indication sticker (15).

2. A valve hand operated valve position indicator device according to claim 1, characterised in that: The top of the organic glass cover (11) is fixedly connected with protective cover (4), the bottom of gear one (1) is fixedly connected with copper pad (12).

3. A valve hand operated valve position indicator device as defined in claim 1 wherein: The bottom of gear one (1) is provided with thrust washer one (2).

4. A valve hand operated valve position indicator device according to claim 3 wherein: The bottom of thrust washer one (2) is provided with guide rod support (3).

5. A valve hand operated valve position indicator device as defined in claim 1 wherein: The bottom of gear one (1) is provided with guide rod hole (13).

6. A valve hand operated valve position indicator device as defined in claim 1 wherein: The bottom of gear one (1) is provided with drive screw hole (14).

7. A valve hand operated valve position indicator device as defined in claim 1 wherein: The bottom middle of gear one (1) is rotationally connected with rotating shaft (17).

8. A valve hand operated valve position indicator device as defined in claim 1 wherein: The outer wall bottom of gear one (1) is fixedly connected with support plate (16).

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