Energy-saving urban waterlogging-prone point monitoring and early warning equipment

Abstract

The energy-saving urban easy-flooding point monitoring and early warning equipment adopts a mechanical main switch, and the mechanical switch is sealed in a glass tube, so that the contact will not be oxidized and will not be affected by dust, and the control is reliable. When no flood disaster occurs, the whole sensor circuit is not electrified, and the system power consumption is zero, achieving the effect of energy saving and emission reduction.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of tunnel flood monitoring and early warning in urban safety, and particularly relates to an energy-saving type urban easily-flooded point monitoring and early warning equipment. BACKGROUND

[0002] In recent years, the phenomenon of a large amount of water accumulation at low-lying places under urban underpass tunnels and overpasses caused by heavy rainfall occurs from time to time and has a tendency to become more and more serious. In rainy seasons, the water accumulation under sunken tunnels or railway bridges is sometimes as high as one meter or more. The urban waterlogging brings great inconvenience to people's travel, and even causes the death and disappearance of people. The government departments related to municipal, flood control and road administration urgently need a flood control early warning emergency command system capable of monitoring the water accumulation on roads in real time. The water accumulation at easily-flooded points is an occasional event, and there are places where it does not occur for several years or even decades. The existing easily-flooded point monitoring equipment has been running with power on, causing great waste of energy, and the sensor being always powered on also increases the fire hazard. SUMMARY

[0003] The present application provides an energy-saving type urban easily-flooded point monitoring and early warning equipment aiming at the deficiencies of the prior art.

[0004] The utility model discloses an energy-saving urban easy waterlogging point monitoring and early warning equipment, its characterized in that the bottom of detection cylinder 6 is built-in water-swelling rubber 12, the lower part of detection cylinder 6 is placed water-swelling rubber 12, and the cylinder wall has through -hole 16, the upper end of detection cylinder 6 is fixed with lid 18, the upper part of water-swelling rubber 12 is placed with piston 5, the upper surface of piston 5 is connected with the lower end of main reset spring 17, and the upper end of main reset spring 17 is pressed on the lower surface of lid 18, the left side of piston 5 is fixed with pull rod 4, and the right side is fixed with place protrusion 11, and pull rod 4 and place protrusion 11 respectively pass through the through slot of both sides of detection cylinder 6, the right side outside detection cylinder 6 has fixed cone 10, lever 7 is installed on fixed cone 10, and torsional spring is installed at the joint of fixed cone 10 and lever 7, the left end head of lever 7 is located above place protrusion 11, and the lower right end of lever 7 is installed with magnet 8, and ferromagnetic switch 9 is installed below magnet 8, the left end of pull rod 4 is tied with rope 13, the lower end of rope 13 is tied on the upper surface of sealing cover 2, compression spring 3 is installed on the upper surface of sealing cover 2, the upper end of compression spring 3 is pressed on the fixed object, sealing cover 2 contacts the ground, water level measuring cylinder 14 is installed on the ground inside sealing cover 2, the lower end of water level measuring cylinder 14 has through -hole, and water level measuring ball 15 is in water level measuring cylinder 14, a plurality of hall switches 1 are installed in the vertical direction outside sealing cover 2. The two contacts of ferromagnetic switch 9 are sealed in glass tube, and do not contact in normal state, the upper side contact of ferromagnetic switch 9 is fixed contact, the lower side contact is movable contact, and the material is ferromagnetic. The density of water level measuring ball 15 is less than the density of water, and there is a magnet inside. The coil of relay KA is connected in series with its normally open contact KA1, KA1 is connected in parallel with ferromagnetic switch 9, and the other normally open contact KA2 of relay KA is the total switch of hall switch 1 and the rest circuit of energy-saving urban easy waterlogging point monitoring and early warning equipment. The symbol of ferromagnetic switch 9 in the circuit diagram is S.

[0005] The energy-saving urban easy waterlogging point monitoring and early warning equipment has the advantages that the mechanical total switch is adopted, the contacts of the mechanical switch are sealed in the glass tube, the contacts cannot be oxidized and are not affected by dust, and the control is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is the whole schematic diagram of the utility model;

[0007] Figure 2 It is the right view schematic diagram of the detection cylinder 6 of the utility model;

[0008] Figure 3 It is the partial circuit diagram of the utility model. DETAILED DESCRIPTION

[0009] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0010] As shown in the attached figure, an energy-saving urban flood-prone area monitoring and early warning device includes a detection cylinder 6 with a water-swellable rubber 12 built into its bottom. The lower part of the cylinder 6 has a through hole 16 on the wall where the water-swellable rubber 12 is placed. A cover 18 is fixed to the upper end of the detection cylinder 6. A piston 5 is placed on top of the water-swellable rubber 12, and the upper surface of the piston 5 is connected to the lower end of a main return spring 17. The upper end of the main return spring 17 presses against the lower surface of the cover 18. A pull rod 4 is fixed to the left side of the piston 5, and a protrusion 11 is fixed to the right side. The pull rod 4 and the protrusion 11 pass through through slots on both sides of the detection cylinder 6. A fixed cone 10 is located on the outer right side of the detection cylinder 6, and a lever 7 is installed on the fixed cone 10. A torsion spring is installed at the connection between the fixed cone 10 and the lever 7. The left end of the lever 7 is located above the protrusion 11, and a magnet 8 is installed below the right end of the lever 7. A ferromagnetic switch 9 is installed below the magnet 8. A rope 13 is tied to the left end of the pull rod 4, and the lower end of the rope 13 is tied to the upper surface of the sealing cover 2. A compression spring 3 is installed on the upper surface of the sealing cover 2, and the upper end of the compression spring 3 presses against a fixed object. The sealing cover 2 is in contact with the ground. A water level measuring cylinder 14 is installed on the ground inside the sealing cover 2. The water level measuring cylinder 14 has a through hole at its lower end, and a water level measuring ball 15 is inside the water level measuring cylinder 14. Several Hall switches 1 are installed vertically on the outside of the sealing cover 2. The two contacts of the ferromagnetic switch 9 are sealed inside a glass tube and do not contact under normal conditions. The upper contact of the ferromagnetic switch 9 is a fixed contact, and the lower contact is a movable contact. It is made of ferromagnetic material. The density of the water level measuring ball 15 is less than that of water, and it contains a magnet. The relay KA coil is connected in series with its normally open contact KA1. KA1 is connected in parallel with the ferromagnetic switch 9. The other normally open contact KA2 of the relay KA is the main switch for Hall switch 1 and the rest of the circuit of the energy-saving urban flood-prone area monitoring and early warning equipment. The ferromagnetic switch 9 is symbolized as S in the circuit diagram.

[0011] Under normal conditions, lever 7 is in a horizontal position under the action of the torsion spring, such as Figure 3 As shown, the power supply is connected to both ends of the relay KA coil. However, the normally open switch KA1 and the ferromagnetic switch 9 controlled by the KA coil are both in the open state, so the relay KA coil is not energized. Simultaneously, the other normally open contact KA2 of the relay KA is the main switch for Hall switch 1 and the remaining circuits of the energy-saving urban flood-prone area monitoring and early warning equipment, and it is also in the normally open state. Therefore, Hall switch 1 and the remaining circuits of the energy-saving urban flood-prone area monitoring and early warning equipment are also not energized. Under normal conditions, the sealing cover 2 is pressed firmly against the ground by the compression spring 3, preventing dust and water from entering the interior of the sealing cover 2.

[0012] When the flood disaster occurs, water enters the through hole 16 in the lower part of the detection cylinder 6, the water-swelling rubber 12 placed in the lower part of the detection cylinder 6 swells when water, pushes the piston 5 to move upwards, compresses the main reset spring 17, and the protrusion 11 drives the lever 7 to rotate clockwise around the fixed cone 10, so that the left side moves upwards and the right side moves downwards, the magnet 8 moves downwards, the magnetic field in the ferromagnetic switch 9 increases, the lower side contact of the ferromagnetic switch 9 moves upwards under the action of magnetic force and is connected with the upper side contact of the ferromagnetic switch 9, S is connected, the relay KA coil circuit is connected, the normally open switch KA1 and the normally open contact KA2 are connected, the normally open switch KA1 is self-locked, and the relay KA coil is always powered. The piston 5 continues to move upwards, the protrusion 11 and the lever 7 are disconnected, the lever 7 returns to the horizontal state under the action of the torsional spring, the magnetic field in the ferromagnetic switch 9 decreases, and the lower side contact of the ferromagnetic switch 9 moves downwards and is disconnected with the upper side contact of the ferromagnetic switch 9, S is disconnected.

[0013] In the process of moving the piston 5 upwards, the pull rod 4 pulls the sealing cover 2 upwards through the rope 13, the flood enters the water level measuring cylinder 14 through the through hole at the lower end of the water level measuring cylinder 14, and under the action of buoyancy, the water level measuring ball 15 moves upwards and directly measures the height of the water level. When the water level measuring ball 15 moves to the height corresponding to each Hall switch 1, the magnet inside the water level measuring ball 15 makes the Hall switch 1 at the corresponding height connected, thereby controlling the alarm of the energy-saving city prone to flooding point monitoring and early warning equipment and displaying the current water level height.

[0014] When the flood is over, the rescue personnel manually reset the power supply, the relay KA coil is powered off, KA1 and KA2 are disconnected, but the water-swelling rubber 12 will not immediately return to its original state after losing water, but will slowly shrink. With the shrinkage of the water-swelling rubber 12, the piston 5 slowly moves downwards under the action of the main reset spring 17, when the protrusion 11 contacts the lever 7, the lever 7 rotates counterclockwise around the fixed cone 10, the left side moves downwards and the right side moves upwards, and the magnet 8 moves upwards, so the ferromagnetic switch 9 is not affected and will not be closed. In the process of slowly moving the piston 5 downwards under the action of the main reset spring 17, the sealing cover 2 moves downwards under the action of the compression spring 3 until the sealing cover 2 is tightly pressed against the ground again.

Claims

1. An energy-saving monitoring and early warning device for urban flood-prone areas, characterized in that... The bottom of the detection cylinder (6) contains a water-swellable rubber (12). The cylinder wall where the water-swellable rubber (12) is placed has a through hole (16). The upper end of the detection cylinder (6) is fixed with a cover (18). A piston (5) is placed on the upper part of the water-swellable rubber (12). The upper surface of the piston (5) is connected to the lower end of the main return spring (17). The upper end of the main return spring (17) presses against the lower surface of the cover (18). A pull rod (4) is fixed on the left side of the piston (5), and a protrusion (11) is fixed on the right side. The pull rod (4) and the protrusion (11) pass through the through slots on both sides of the detection cylinder (6). There is a fixed cone (10) on the outside of the right side of the detection cylinder (6). A lever (7) is installed on the fixed cone (10). A torsion spring is installed at the connection between the fixed cone (10) and the lever (7). The head of the left end of the lever (7) is located above the protrusion (11). A magnet (8) is installed below the right end of the lever (7). 8) A ferromagnetic switch (9) is installed below; a rope (13) is tied to the left end of the lever (4), and the lower end of the rope (13) is tied to the upper surface of the sealing cover (2). A compression spring (3) is installed on the upper surface of the sealing cover (2), and the upper end of the compression spring (3) is pressed against a fixed object. The sealing cover (2) is in contact with the ground. A water level measuring cylinder (14) is installed on the ground inside the sealing cover (2). The lower end of the water level measuring cylinder (14) has a through hole, and the water level measuring cylinder (14) contains a water level measuring ball (15); several Hall switches (1) are installed vertically on the outside of the sealing cover (2); the two contacts of the ferromagnetic switch (9) are sealed in a glass tube and do not contact each other under normal conditions. The upper contact of the ferromagnetic switch (9) is a fixed contact, and the lower contact is a movable contact. It is made of ferromagnetic material; the density of the water level measuring ball (15) is less than that of water, and it contains a magnet; the relay KA coil is connected in series with its normally open contact KA1. l Connected in parallel with the ferromagnetic switch (9), the other normally open contact KA2 of the relay KA is the main switch for the Hall switch (1) and the rest of the circuits of the energy-saving urban flood-prone area monitoring and early warning equipment; the symbol of the ferromagnetic switch (9) in the circuit diagram is S.

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