Safety street lamp capable of preventing electric shock
By designing auxiliary mechanisms in street lights and using the liquid level-raising touch switch to disconnect the normally closed contactor, the leakage problem of street lights caused by urban flooding is solved, and the anti-electric shock effect of safe street lights is achieved.
Patent Information
- Application Number
- CN202421294582.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Urban flooding causes street light leakage, causing electric shock accidents, especially during the rainy season, which has become a serious problem.
A safe street light is designed to prevent electric shock, and an auxiliary mechanism is adopted, including a housing, an inner cavity, a fixed block, a round rod, a limiting disk, a touch switch, a wire, a float ball, a liquid inlet, a metal sleeve and a normally closed contact. The liquid level rises to push the float ball and the metal sleeve upwards, and the touch switch controls the normally closed contactor to disconnect the circuit of the lighting lamp to avoid leakage.
It effectively avoids street light leakage and electric shock accidents caused by urban flooding, ensures safety of use, especially in the rainy season, which effectively prevents line short circuits and leakage.
Smart Images
Figure CN222459444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a street lamp, in particular to a safety street lamp capable of preventing electric shock. Background Art
[0002] As the global climate warms, natural disasters occur frequently, and urban waterlogging is particularly serious. Urban waterlogging refers to the phenomenon that waterlogging disasters occur in cities due to heavy or continuous rainfall that exceeds the city's drainage capacity. The objective cause of urban waterlogging is heavy rainfall and concentrated rainfall. Waterlogging may form in places where rainfall is particularly rapid, and waterlogging may also form in places where rainfall intensity is relatively high and duration is relatively long.
[0003] Nowadays, there are endless incidents of deaths caused by electric leakage in street lamps due to urban waterlogging, especially in the rainy season, which has become a chronic problem. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a safe street lamp that prevents electric shock, which effectively solves the problem that there are endless incidents of death caused by leakage of street lamps due to urban waterlogging, especially in the rainy season, which has become a stubborn problem.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a floor at the bottom, a base cast in the floor, a lamp pole installed on the base by bolts, and a lighting lamp installed at one end of the lamp pole, and also includes a power supply cable, an inspection port, an auxiliary mechanism and a metal pipe, wherein the lamp pole is provided with an inspection port near the middle, an auxiliary mechanism is provided on one side of the bottom of the lamp pole, and a metal pipe is welded to the lamp pole above the auxiliary mechanism;
[0006] The auxiliary mechanism includes a shell, an inner cavity, a fixed block, a round rod, a limit plate, a touch switch, a wire, a float, a liquid inlet, a metal sleeve and a normally closed contactor. The shell is fixed on one side of the bottom of the lamp pole, and an inner cavity is provided inside the shell. A round rod is installed inside the shell through the fixed block, a limit plate is provided at the bottom end of the round rod, a touch switch is installed near the top end of the round rod, a wire is connected to the touch switch, a float is sleeved on the round rod, a liquid inlet is provided on one side of the bottom end of the shell, a metal sleeve is provided in the middle of the float, and the normally closed contactor is installed inside the inspection port.
[0007] Preferably, a ventilation hole is provided at the top of the shell.
[0008] Preferably, a power supply cable is provided in the base.
[0009] Preferably, the wire passes through a metal tube and is connected to a normally closed contactor.
[0010] Preferably, the power supply cable is electrically connected to a normally closed contactor, and the normally closed contactor is electrically connected to a touch switch and a lighting lamp respectively.
[0011] Preferably, the inner diameter of the metal sleeve is slightly larger than the outer diameter of the round rod.
[0012] Beneficial effect: When the utility model is used, if urban waterlogging occurs, liquid enters the inner cavity of the shell from the liquid inlet. As the liquid level rises, the liquid will push the float to move upward, and the metal sleeve on the float moves upward on the round rod. When the metal sleeve moves upward on the round rod to contact the touch switch, the touch switch controls the normally closed contactor to disconnect. After the normally closed contactor is disconnected, the circuit of the lighting lamp is disconnected, which can prevent liquid from entering the lamp pole due to urban waterlogging and causing leakage, thereby avoiding electric shock and facilitating use. The utility model has a novel structure and an ingenious design. The inspection port is set above the auxiliary mechanism. If urban waterlogging occurs, when the water level reaches the set water level of the touch switch, the touch switch sends a command to the normally closed contactor, the normally closed contactor is disconnected, and the street lamp power supply circuit is powered off, preventing rainwater from flowing back into the lamp pole and causing circuit short circuit, leakage, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the shell structure of the utility model;
[0016] Figure 3 This is a top view of the float of the utility model;
[0017] Figure 4 It is the circuit diagram of the utility model;
[0018] Numbers in the figure: 1. Floor; 2. Base; 3. Bolt; 4. Lamp pole; 5. Lighting lamp; 6. Power supply cable; 7. Inspection port; 8. Auxiliary mechanism; 9. Metal pipe; 10. Shell; 11. Inner cavity; 12. Fixed block; 13. Round rod; 14. Limit plate; 15. Touch switch; 16. Wire; 17. Float; 18. Liquid inlet; 19. Metal sleeve; 20. Normally closed contactor. DETAILED DESCRIPTION
[0019] The following is combined with Figure 1-4 The specific implementation modes of the present utility model are further described in detail.
[0020] Embodiment 1, by Figure 1-4The utility model provides a safety street lamp for preventing electric shock, comprising a floor 1 at the bottom, a base 2 cast in the floor 1, a lamp pole 4 mounted on the base 2 by bolts 3, and a lighting lamp 5 mounted at one end of the lamp pole 4, and also comprising a power supply cable 6, an inspection port 7, an auxiliary mechanism 8 and a metal pipe 9. The lamp pole 4 is provided with an inspection port 7 near the middle, an auxiliary mechanism 8 is provided on one side of the bottom of the lamp pole 4, and a metal pipe 9 is welded to the lamp pole 4 above the auxiliary mechanism 8;
[0021] The auxiliary mechanism 8 includes a shell 10, an inner cavity 11, a fixed block 12, a round rod 13, a limit plate 14, a touch switch 15, a wire 16, a float 17, a liquid inlet 18, a metal sleeve 19 and a normally closed contactor 20. The shell 10 is fixed to one side of the bottom of the lamp pole 4. The inner cavity 11 is arranged inside the shell 10. The round rod 13 is installed inside the shell 10 through the fixed block 12. The bottom end of the round rod 13 is provided with a limit plate 14. The touch switch 15 is installed near the top of the round rod 13. The touch switch 15 is connected to the wire 16. The round rod 13 is sleeved with a float 17. A liquid inlet 18 is arranged on one side of the bottom end of the shell 10. A metal sleeve 19 is arranged in the middle of the float 17. The normally closed contactor 20 is installed inside the inspection port 7.
[0022] The top of the housing 10 is provided with a ventilation hole for ventilation.
[0023] A power supply cable 6 is provided inside the base 2 for easy power supply.
[0024] The wire 16 passes through the metal tube 9 and is connected to the normally closed contactor 20, which is convenient for connection and use.
[0025] The power supply cable 6 is electrically connected to the normally closed contactor 20, and the normally closed contactor 20 is electrically connected to the touch switch 15 and the lighting lamp 5 respectively, so as to facilitate the transmission control of the signal.
[0026] The inner diameter of the metal sleeve 19 is slightly larger than the outer diameter of the round rod 13, so as to facilitate the use.
[0027] Working principle: When the utility model is used, if urban flooding occurs, liquid enters the inner cavity 11 of the shell 10 from the liquid inlet 18. As the liquid level rises, the liquid will push the float 17 to move upward, and the metal sleeve 19 on the float 17 moves upward on the round rod 13. When the metal sleeve 19 moves upward on the round rod 13 until it contacts the touch switch 15, the touch switch 15 controls the normally closed contactor 20 to disconnect. After the normally closed contactor 20 is disconnected, the circuit of the lighting lamp 5 is disconnected, which can prevent liquid from entering the lamp pole 4 due to urban flooding and causing leakage, thereby avoiding electric shock and facilitating use.
[0028] Beneficial effects: The utility model has a novel structure and ingenious design. The inspection port 7 is arranged above the auxiliary mechanism 8. If urban flooding occurs, when the water level reaches the set water level of the touch switch 15, the touch switch 15 sends a command to the normally closed contactor 20, the normally closed contactor 20 is disconnected, and the street lamp power supply circuit is cut off to prevent rainwater from flowing back into the lamp pole and causing line short circuit, leakage, etc.
[0029] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A safety street lamp for preventing electric shock, comprising a floor (1) at the bottom, a base (2) cast in the floor (1), a lamp pole (4) mounted on the base (2) by bolts (3), and a lighting lamp (5) mounted at one end of the lamp pole (4), characterized in that: It also includes a power supply cable (6), an inspection port (7), an auxiliary mechanism (8) and a metal tube (9); the lamp pole (4) is provided with an inspection port (7) near the middle, the auxiliary mechanism (8) is provided on one side of the bottom of the lamp pole (4), and the metal tube (9) is welded to the lamp pole (4) above the auxiliary mechanism (8); The auxiliary mechanism (8) comprises a shell (10), an inner cavity (11), a fixing block (12), a round rod (13), a limit plate (14), a touch switch (15), a wire (16), a float (17), a liquid inlet (18), a metal sleeve (19) and a normally closed contactor (20). The shell (10) is fixed to one side of the bottom of the lamp pole (4). The shell (10) is provided with an inner cavity (11). The shell (10) is provided with a round rod (13) installed inside the shell (10) through the fixing block (12). The bottom end of the round rod (13) is provided with a limit plate (14). The touch switch (15) is installed near the top of the round rod (13). The touch switch (15) is connected to the wire (16). The round rod (13) is sleeved with a float (17). The bottom end of the shell (10) is provided with a liquid inlet (18). The middle part of the float (17) is provided with a metal sleeve (19). The normally closed contactor (20) is installed inside the inspection port (7).
2. A safety street lamp for preventing electric shock according to claim 1, characterized in that: The top end of the shell (10) is provided with an air hole.
3. A safety street lamp for preventing electric shock according to claim 1, characterized in that: A power supply cable (6) for supplying power is arranged inside the base (2).
4. A safety street lamp for preventing electric shock according to claim 1, characterized in that: The wire (16) passes through the metal tube (9) and is connected to the normally closed contactor (20).
5. The safety street lamp for preventing electric shock according to claim 3, characterized in that: The power supply cable (6) is electrically connected to the normally closed contactor (20), and the normally closed contactor (20) is electrically connected to the touch switch (15) and the lighting lamp (5) respectively.
6. The safety street lamp for preventing electric shock according to claim 1, characterized in that: The inner diameter of the metal sleeve (19) is slightly larger than the outer diameter of the round rod (13).