Automatic tripping device of flood-prevention low-voltage switch

Abstract

The utility model relates to the field of flood-control low-voltage switches, in particular to an automatic tripping device of a flood-control low-voltage switch. The utility model provides an automatic tripping device of a flood-control low-voltage switch. An automatic tripping device of a flood-prevention low-voltage switch comprises a base, a floating ball, a connecting seat, a connecting column, a rotating rod, a contact piece, a water level controller, a mistaken touch prevention mechanism and an induction mechanism. The floating ball moves upwards along with the continuous increase of the depth of accumulated water, so that the contact piece is in contact with the water level controller, an alarm signal is triggered, the relay operates, a low-voltage switch tripping signal is sent out, the low-voltage switch automatically trips and powers off, nearby personnel are timely protected from being damaged by electric power leakage, and the safety of the water level controller is ensured. Meanwhile, a mistaken touch prevention mechanism is arranged, in a normal state, the fixing column locks the connecting base, the situation that the low-voltage switch automatically trips due to accidental touch is prevented, and therefore the safety of power distribution equipment and nearby personnel is protected in time.

Description

Technical Field

[0001] The utility model relates to the field of flood prevention low-voltage switches, in particular to an automatic tripping device for flood prevention low-voltage switches. Background Art

[0002] During the construction of power systems, distribution equipment is often installed at different heights according to changes in the terrain. When power equipment is installed in low-lying areas and encounters floods, the power system may be dampened and leak electricity, thereby damaging the distribution system. This in turn causes nearby water to accumulate and become electrified, affecting the lives of nearby personnel. Existing flood-proof low-voltage switches usually use physical isolation or manual shutdown methods. These methods consume a lot of manpower and material resources and have limited flood prevention effects. They cannot fundamentally protect the distribution system, and nearby personnel still face the safety hazard of electric shock.

[0003] In response to the above problems, an automatic tripping device for flood control low-voltage switches is now being developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing flood prevention low-voltage switches that usually adopt physical isolation or manual closing methods, which consume a lot of manpower and material resources and have limited flood prevention effects, cannot fundamentally protect the power distribution system, and still pose a safety hazard of electric shock to nearby personnel, the utility model provides an automatic tripping device for flood prevention low-voltage switches.

[0005] The technical solution of the present utility model is: an automatic tripping device for a flood-proof low-voltage switch, comprising a base, a float slidably connected to the lower part of the base, a connecting seat connected to the upper part of the float, both left and right parts of the connecting seat are rotatably connected to a rotating rod, left and right symmetrical connecting columns are connected to the rear side of the base, the connecting columns are rotatably connected to the adjacent rotating rods, the rotating rods are connected to contact pieces, the lower part of the base is connected to a left and right symmetrical water level controller, and an anti-accidental touch mechanism is provided on the front side of the base.

[0006] Optionally, the anti-accidental touch mechanism includes a guide block, the guide block is connected to the bottom of the base, the guide block is located on the front side of the connecting seat, a fixed column is slidably connected to the guide block, the fixed column is slidably connected to the connecting seat, the front of the fixed column is connected to a guide groove frame, a hydraulic cylinder is installed at the front of the base, a pushing frame is connected to the telescopic end of the hydraulic cylinder, and the pushing frame is slidably connected to the guide groove frame.

[0007] Optionally, a sensing mechanism is further included, which includes a water collecting tank. The water collecting tank is installed on the front side of the base, the lower part of the water collecting tank is connected to a solenoid valve, and the upper part of the water collecting tank is connected to a liquid level sensor.

[0008] Optionally, the upper side of the base is a smooth contact surface, which is conducive to installation in contact with the lower side of the distribution box.

[0009] Optionally, the water level controllers are also connected to the contact pieces, and two adjacent contact pieces can fit together. When the two adjacent contact pieces fit together, the water level controller is triggered.

[0010] Optionally, the water collecting tank is a trapezoidal structure.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model uses the float to move upward as the depth of the accumulated water continues to increase, so that the contact piece contacts the water level controller, triggering the alarm signal, causing the relay to operate, thereby sending a low-voltage switch trip signal, causing the low-voltage switch to automatically trip and cut off power, thereby promptly protecting nearby personnel from harm due to power leakage. At the same time, an anti-accidental touch mechanism is provided. Under normal conditions, the fixed column locks the connecting seat to prevent accidental touch from causing the low-voltage switch to automatically trip.

[0013] 2. The utility model collects a certain amount of rainwater by setting up a water collection tank. When the water volume reaches the liquid level sensor, the liquid level sensor sends a signal to open the solenoid valve to discharge the accumulated water in the water collection tank. At the same time, it sends a start signal to the hydraulic cylinder to open the anti-false touch mechanism, so that the relay operates and then sends a low-voltage switch tripping signal, so that the low-voltage switch automatically trips and cuts off the power, thereby timely protecting the safety of the power distribution equipment and nearby personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a three-dimensional structural sectional view of the utility model.

[0016] Figure 3 It is a three-dimensional structural cross-sectional view of the anti-accidental touch mechanism of the utility model.

[0017] Figure 4 It is a three-dimensional structural cross-sectional view of the sensing mechanism of the utility model.

[0018] Explanation of the reference numerals: 1: base, 2: float, 3: connecting seat, 4: connecting column, 5: rotating rod, 6: contact piece, 7: water level controller, 8: anti-accidental touch mechanism, 81: guide block, 82: fixing column, 83: guide groove frame, 84: hydraulic cylinder, 85: pushing frame, 9: sensing mechanism, 91: water collecting tank, 92: solenoid valve, 93: liquid level sensor. DETAILED DESCRIPTION

[0019] The following description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] Example 1

[0021] Automatic tripping device for flood control low voltage switch, such as Figure 1 and Figure 2 As shown, it includes a base 1, the upper side of the base 1 is a smooth contact surface which is conducive to installation in contact with the lower side of the distribution box, the lower part of the base 1 is slidably connected to a float 2, the upper part of the float 2 is connected to a connecting seat 3, the left and right parts of the connecting seat 3 are rotatably connected to a rotating rod 5, the rear side of the base 1 is connected to left and right symmetrical connecting columns 4, the connecting columns 4 are rotatably connected to adjacent rotating rods 5, the rotating rods 5 are connected to contact pieces 6, the lower part of the base 1 is connected to left and right symmetrical water level controllers 7, the water level controllers 7 are also connected to contact pieces 6, two adjacent contact pieces 6 can fit together, and the water level controller 7 is triggered when the two adjacent contact pieces 6 fit together, and an anti-accidental touch mechanism 8 is provided on the front side of the base 1.

[0022] like Figure 2 and Figure 3 As shown, the anti-accidental touch mechanism 8 includes a guide block 81, which is connected to the bottom of the base 1, and is located on the front side of the connecting seat 3. A fixed column 82 is slidably connected to the guide block 81, and the fixed column 82 is slidably connected to the connecting seat 3. The front of the fixed column 82 is connected to a guide groove frame 83, and a hydraulic cylinder 84 is installed at the front of the base 1. A pushing frame 85 is connected to the telescopic end of the hydraulic cylinder 84, and the pushing frame 85 is slidably connected to the guide groove frame 83.

[0023] During the construction of the power system, the power distribution equipment is often installed at different heights according to the changes in the terrain. When the power equipment is installed in a low-lying area and encounters a flood, the power system may be dampened and leak electricity, thereby damaging the power distribution system, and then causing the nearby water to accumulate and become electrified, affecting the life safety of nearby personnel. The device is installed at the bottom of the power distribution equipment. When water accumulates in rainy days, the float 2 rises upward under the action of buoyancy, driving the connecting seat 3 to rise upward, causing the rotating rod 5 to rotate, and the outer side of the rotating rod 5 to move downward, gradually shortening the distance between the contact piece 6 and the water level controller 7. When the contact piece 6 is close to the water level controller 7, the distance between the contact piece 6 and the water level controller 7 is shortened. When the float 2 is accidentally lifted by the force, the low-pressure switch is automatically tripped, and an anti-accidental touch mechanism 8 is provided, which can open the hydraulic cylinder 84. The telescopic end of the hydraulic cylinder 84 drives the push frame 85 to move downward, and drives the push frame 85 to slide on the guide groove frame 83, so that the fixed column 82 slides forward, and the fixed column 82 is disengaged from the limit lock on the connecting seat 3, thereby preventing the low-pressure switch from automatically tripping due to accidental touch.

[0024] Example 2

[0025] On the basis of Example 1, Figure 1 and Figure 4 As shown, it also includes a sensing mechanism 9, which includes a water collecting tank 91. The water collecting tank 91 is a trapezoidal structure. The water collecting tank 91 is installed on the front side of the base 1. The lower part of the water collecting tank 91 is connected to an electromagnetic valve 92, and the upper part of the water collecting tank 91 is connected to a liquid level sensor 93.

[0026] When it rains, rainwater collects into the water collecting tank 91. When the water collects to the upper part of the water collecting tank 91, the liquid level sensor 93 is triggered and an alarm is sounded, causing the solenoid valve 92 to open and drain the accumulated water in the water collecting tank 91. At the same time, a start signal is sent to the hydraulic cylinder 84, thereby opening the anti-accidental touch mechanism 8 and repeating the above operation.

[0027] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. Flood control low-voltage switch automatic tripping device, characterized in that: The invention comprises a base (1), wherein the lower part of the base (1) is slidably connected to a float (2), the upper part of the float (2) is connected to a connecting seat (3), the left and right parts of the connecting seat (3) are both rotatably connected to rotating rods (5), the inner rear side of the base (1) is connected to left and right symmetrical connecting columns (4), the connecting columns (4) are rotatably connected to adjacent rotating rods (5), the rotating rods (5) are each connected to a contact piece (6), the inner lower part of the base (1) is connected to a left and right symmetrical water level controller (7), and the inner front side of the base (1) is provided with an anti-accidental touch mechanism (8).

2. The flood prevention low-voltage switch automatic tripping device according to claim 1, characterized in that: The anti-accidental touch mechanism (8) includes a guide block (81), the bottom of the base (1) is connected to the guide block (81), the guide block (81) is located at the front side of the connecting seat (3), a fixed column (82) is slidably connected to the guide block (81), the fixed column (82) is slidably connected to the connecting seat (3), the front of the fixed column (82) is connected to a guide groove frame (83), a hydraulic cylinder (84) is installed in the front of the base (1), the telescopic end of the hydraulic cylinder (84) is connected to a push frame (85), and the push frame (85) is slidably connected to the guide groove frame (83).

3. The flood prevention low-voltage switch automatic tripping device according to claim 2, characterized in that: The invention also includes a sensing mechanism (9), wherein the sensing mechanism (9) includes a water collecting tank (91). The water collecting tank (91) is installed on the front side of the base (1), the lower part of the water collecting tank (91) is connected to a solenoid valve (92), and the upper part of the water collecting tank (91) is connected to a liquid level sensor (93).

4. The flood prevention low-voltage switch automatic tripping device according to claim 1, characterized in that: The upper side of the base (1) is a smooth contact surface, which is conducive to fitting with the lower side of the distribution box for installation.

5. The flood prevention low-voltage switch automatic tripping device according to claim 1, characterized in that: The water level controller (7) is also connected to the contact piece (6), and two adjacent contact pieces (6) can be attached to each other. When the two adjacent contact pieces (6) are attached to each other, the water level controller (7) is triggered.

6. The flood prevention low-voltage switch automatic tripping device according to claim 3, characterized in that: The water collecting box (91) is a trapezoidal structure.

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