Anti-reverse locking device for dual-power fan switch

Abstract

The utility model discloses an anti-reverse locking device for a dual-power fan switch, which comprises a fan control panel, one side of the outer part of the fan control panel is fixedly connected with a positive and negative opening state display panel, the outer part of the positive and negative opening state display panel is provided with a rotating arrow, and the outer part of the fan control panel is movably sleeved with a rotating handle. According to the anti-reverse-rotation locking device for the dual-power-supply fan switch, through the design and application of the anti-reverse-rotation locking device for the dual-power-supply fan switch, the position of the second fastening nut is adjusted, and the second fastening nut drives the movement track of the pointer to limit, so that reverse rotation of a local fan caused by misoperation of personnel is effectively avoided; and the safety hidden danger caused by human factors is eliminated, a guarantee means is provided for continuous and good ventilation of the working face, and a guarantee is provided for ensuring safe production.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-power supply fan switches, in particular to an anti-reversal locking device for a dual-power supply fan switch. Background Art

[0002] The dual-power fan switch for coal mines is the main control electrical equipment for underground ventilation. The anti-reversal measures currently taken underground are to mark the forward and reverse directions of the switch operation and paste a warning prohibiting reverse rotation of the isolation handle to avoid the problem of mis-rotation of the control switch, which causes the fan to rotate in the opposite direction and then causes safety hazards;

[0003] However, in the existing dual-power fan switch, the anti-reverse measure is to protect the start-up of the power switch with a mark. This protection measure lacks an anti-reverse locking device. Once the operator makes an error operation and the fan starts in reverse, it may cause the wind tube to be sucked back and damaged, directly affecting the ventilation and normal production of the working surface. In order to avoid such accidents, we have made an anti-reverse locking device for the dual-power fan switch. Summary of the invention

[0004] In view of the shortcomings of the existing dual-power fan switch anti-reversal locking device, the utility model provides a dual-power fan switch anti-reversal locking device, which has the advantages of being installed between the fan control panel and the rotating handle through a circular steel ring, and at the same time rotating the first fastening nut to limit the position of the circular steel ring, rotating the threaded sleeve, adjusting the position of the threaded sleeve, and at the same time rotating the second fastening nut, the second fastening nut passes through the interior of the threaded sleeve, and then the position of the second fastening nut can be positioned, and at the same time the second fastening nut can protect the moving trajectory of the pointer, thereby solving the problems raised in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a dual-power fan switch anti-reverse locking device, comprising a fan control panel, one side of the outside of the fan control panel is fixedly connected with a positive and negative opening status display panel, the outside of the positive and negative opening status display panel is provided with a rotating arrow, the outside of the fan control panel is movably sleeved with a rotating handle, one side of the rotating handle is fixedly connected with a pointer, the outside movable sleeve between the fan control panel and the rotating handle is connected with a circular steel ring, the outside of the circular steel ring is fixedly connected with a first rotating sleeve, the outside of the first rotating sleeve is movably sleeved with a second rotating sleeve, the internal threaded sleeve of one side of the circular steel ring is connected with a first fastening nut, one side of the second rotating sleeve is fixedly connected with a threaded sleeve, and the inside of the threaded sleeve is installed with a second fastening nut.

[0006] Preferably, two groups of rotating arrows are installed outside the forward and reverse opening status display panel, and the directions of the two groups of rotating arrows are opposite, and the front end of the pointer points to the outside of the rotating arrows.

[0007] Preferably, the inner side of the rotating handle is installed on the outside of the dual-power blower.

[0008] Preferably, the circular steel ring is movably sleeved on the outside of the rotating handle, and the circular steel ring is sleeved on the limiting pad installed on the outside of the fan control panel, and the inner side of the first fastening nut passes through the circular steel ring and is movably sleeved on the limiting pad.

[0009] Preferably, an opening is provided in the middle of the second rotating sleeve, the first fastening nut is arranged inside the opening, the first rotating sleeve and the second rotating sleeve are circular, and the first rotating sleeve and the second rotating sleeve are mutually sleeved and defined.

[0010] Preferably, the second fastening nut is perpendicular to the front side of the circular steel ring, and the second fastening nut passes through the threaded sleeve and contacts the outside of the fan control panel.

[0011] Compared with the existing dual power fan switch anti-reverse locking device, the utility model has the following beneficial effects:

[0012] 1. The dual-power fan switch anti-reverse locking device is designed and applied by installing the dual-power fan switch anti-reverse locking device, and then adjusting the position of the second fastening nut. The second fastening nut drives the moving trajectory of the pointer to limit, thereby effectively avoiding the reversal of the local fan due to misoperation by personnel, causing damage to the wind tube and wind stoppage accidents on the working face, eliminating the safety hazards caused by "human" factors, providing a means to ensure continuous good ventilation of the working face, and ensuring safe production.

[0013] 2. The anti-reversal locking device of the dual-power fan switch is limited by the mutual sleeve connection between the first rotating sleeve and the second rotating sleeve, and then the second rotating sleeve can rotate around the outside of the first rotating sleeve. After the first fastening nut is rotated to control the position of the circular steel ring to limit it, when the locking position of the threaded sleeve is subsequently adjusted, it is only necessary to remove the second fastening nut, and then drive the position of the threaded sleeve to adjust, and at the same time rotate the second fastening nut. The inner side of the second fastening nut is limited to the outside of the fan control panel, and then the second fastening nut can adjust the limited position of the pointer through convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the anti-reversal locking device of the utility model;

[0017] Figure 4 It is a schematic diagram of the top view of the anti-reversal locking structure of the utility model.

[0018] In the figure: 1. Fan control panel; 2. Forward and reverse opening status display panel; 3. Rotation arrow; 4. Turning handle; 5. Pointer; 6. Round steel ring; 7. First rotating sleeve; 8. Second rotating sleeve; 9. First fastening nut; 10. Threaded sleeve; 11. Second fastening nut. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A dual-power fan switch anti-reverse locking device includes a fan control panel 1, a positive and negative opening status display panel 2 is fixedly connected to one side of the outside of the fan control panel 1, a rotating arrow 3 is provided on the outside of the positive and negative opening status display panel 2, and the rotating arrow 3 is convenient for displaying the start status when the rotating handle 4 is turned to start the control switch, the fan control panel 1 is externally movably sleeved with a rotating handle 4, the rotating handle 4 is turned, and the rotating handle 4 drives the fan switch to start, and a pointer 5 is fixedly connected to one side of the rotating handle 4, and a circular steel ring 6 is externally movably sleeved between the fan control panel 1 and the rotating handle 4, and the circular steel ring 6 is sleeved between the fan control panel 1 and the rotating handle 4, and the rotation of the rotating handle 4 is not in accordance with the circular steel ring. 6 causes interference, the outside of the circular steel ring 6 is fixedly connected with a first rotating sleeve 7, the outside of the first rotating sleeve 7 is movably sleeved with a second rotating sleeve 8, and the second rotating sleeve 8 can rotate around the outside of the first rotating sleeve 7, and the internal threaded sleeve on one side of the circular steel ring 6 is sleeved with a first fastening nut 9. The first fastening nut 9 is rotated to drive the position of the circular steel ring 6 to be limited, and one side of the second rotating sleeve 8 is fixedly connected with a threaded sleeve 10, and a second fastening nut 11 is installed inside the threaded sleeve 10. The second fastening nut 11 is rotated, and the second fastening nut 11 passes through the threaded sleeve 10 and is installed on the outside of the fan control board 1. At the same time, the second fastening nut 11 can limit the position of the outside of the pointer 5.

[0021] See also Figure 1Two groups of rotating arrows 3 are installed on the outside of the positive and negative opening status display panel 2, and the directions of the two groups of rotating arrows 3 are opposite. The front end of the pointer 5 points to the outside of the rotating arrow 3. The rotating arrow 3 is opened on the outside of the positive and negative opening status display panel 2, and the directions of the rotating arrows 3 are opposite. When the rotating handle 4 is turned to control the angle of the pointer 5 for adjustment, the pointer 5 and the outside of the rotating arrow 3 are processed. At the same time, after the pointer 5 points to the outside of the rotating arrow 3, the use status of the dual-power supply fan can be controlled for observation.

[0022] See also Figure 1 The inner side of the rotating handle 4 is installed on the outside of the dual-power fan. The inner side of the rotating handle 4 is installed on the outside of the dual-power fan. The rotating handle 4 is rotated at the same time. The rotating handle 4 then controls the dual-power fan switch for adjustment.

[0023] See also Figure 2 The circular steel ring 6 is movably sleeved on the outside of the rotating handle 4, and the circular steel ring 6 is sleeved on the limit pad installed on the outside of the fan control panel 1. The inner side of the first fastening nut 9 passes through the circular steel ring 6 and is movably sleeved on the limit pad. The rotating handle 4 is installed on the outside of the fan control panel 1, and the pointer 5 is sleeved on the outside of the limit pad installed on the outside of the fan control panel 1. Then, when the rotating handle 4 is rotated to adjust the start of the equipment, the rotation of the rotating handle 4 is avoided to interfere with the position of the circular steel ring 6. At the same time, the first fastening nut 9 is rotated. The first fastening nut 9 is squeezed and limited to the outside of the limit plate, thereby improving the stability of the circular steel ring 6 when it is positioned outside the fan control panel 1.

[0024] See also Figure 3 An opening is provided in the middle of the second rotating sleeve 8, and the first fastening nut 9 is arranged inside the opening. The first rotating sleeve 7 and the second rotating sleeve 8 are circular, and the first rotating sleeve 7 and the second rotating sleeve 8 are mutually socketed and limited. An opening is provided in the middle of the second rotating sleeve 8, and the first rotating sleeve 7 and the second rotating sleeve 8 are mutually socketed and limited. After the circular steel ring 6 is installed on the outside of the fan control panel 1 by the first fastening nut 9, the position of the circular steel ring 6 can be positioned, and the circular steel ring 6 and the first rotating sleeve 7 are socketed and limited, and then the first rotating sleeve 7 can be rotated around the outside of the second rotating sleeve 8. By rotating the second rotating sleeve 8, it is convenient to adjust the threaded sleeve 10 at different positions outside the rotating handle 4, and then the control pointer 5 can be limited in the rotation position, thereby driving the rotating handle 4 to prevent reverse processing.

[0025] See also Figure 3The second fastening nut 11 is perpendicular to the front side of the circular steel ring 6, the second fastening nut 11 passes through the threaded sleeve 10 and contacts the outside of the fan control board 1, and is installed inside the threaded sleeve 10 through the second fastening nut 11. When the position of the second fastening nut 11 needs to be limited, the second fastening nut 11 is rotated, the second fastening nut 11 passes through the threaded sleeve 10, and the inner side is attached to the outside of the fan control board 1, and then the position between the second fastening nut 11 and the fan control board 1 can be limited, thereby improving the convenience of positioning the second fastening nut 11.

[0026] Working principle: when in use, the rotating handle 4 is disassembled, and the circular steel ring 6 is sleeved between the rotating handle 4 and the fan control board 1, and the first fastening nut 9 is rotated to control the circular steel ring 6 to be limited on the limit pad installed on the outside of the fan control board 1, and the threaded sleeve 10 is rotated at the same time. The threaded sleeve 10 drives the pointer 5 to limit the movable position. When the pointer 5 can only rotate upward, the threaded sleeve 10 is adjusted to rotate to the lower end of the pointer 5. At the same time, a second fastening nut 11 is installed inside the threaded sleeve 10. The inner side of the second fastening nut 11 is squeezed and limited to the outside of the fan control board 1 for fixation. At the same time, when the rotating handle 4 becomes loose during use, the pointer 5 can be prevented from continuing to move downward; at the same time, the threaded sleeve 10 can be controlled to move to the upper end of the pointer 5, thereby avoiding the problem of the pointer 5 moving to the upper end, and then the rotating handle 4 is controlled to be locked and fixed during use, thereby playing the role of anti-reverse locking.

[0027] 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 dual-power fan switch anti-reverse locking device, comprising a fan control panel (1), a positive and negative opening status display panel (2) is fixedly connected to one side of the outside of the fan control panel (1), a rotation arrow (3) is provided on the outside of the positive and negative opening status display panel (2), a rotating handle (4) is movably sleeved on the outside of the fan control panel (1), and a pointer (5) is fixedly connected to one side of the rotating handle (4), characterized in that: A circular steel ring (6) is movably sleeved on the outside between the fan control panel (1) and the rotating handle (4); a first rotating sleeve (7) is fixedly connected to the outside of the circular steel ring (6); a second rotating sleeve (8) is movably sleeved on the outside of the first rotating sleeve (7); a first fastening nut (9) is threadedly sleeved on the inside of one side of the circular steel ring (6); a threaded sleeve (10) is fixedly connected to one side of the second rotating sleeve (8); and a second fastening nut (11) is installed inside the threaded sleeve (10).

2. A dual power supply fan switch anti-reverse locking device according to claim 1, characterized in that: Two groups of rotating arrows (3) are installed outside the forward and reverse opening state display panel (2), and the directions of the two groups of rotating arrows (3) are opposite, and the front end of the pointer (5) points to the outside of the rotating arrows (3).

3. The anti-reversal locking device for a dual-power fan switch according to claim 1, characterized in that: The inner side of the rotating handle (4) is mounted on the outside of the dual-power fan.

4. The anti-reversal locking device for a dual-power fan switch according to claim 1, characterized in that: The circular steel ring (6) is movably sleeved on the outside of the rotating handle (4), and the circular steel ring (6) is sleeved on the outer mounting limit pad of the fan control panel (1), and the inner side of the first fastening nut (9) passes through the circular steel ring (6) and is movably sleeved on the limit pad.

5. The anti-reversal locking device for a dual-power fan switch according to claim 1, characterized in that: An opening is provided in the middle of the second rotating sleeve (8), and the first fastening nut (9) is arranged inside the opening. The first rotating sleeve (7) and the second rotating sleeve (8) are circular, and the first rotating sleeve (7) and the second rotating sleeve (8) are mutually sleeved and defined.

6. The dual power supply fan switch anti-reverse locking device according to claim 1, characterized in that: The second fastening nut (11) is in a perpendicular state to the front face of the circular steel ring (6); the second fastening nut (11) passes through the threaded sleeve (10) and contacts the outside of the fan control panel (1).

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