A lighting street lamp capable of automatically cutting off power

Abstract

The present invention discloses a street lamp capable of automatically shutting off the power supply, relating to the technical field of street lamps. The purpose is to provide a street lamp capable of automatically shutting off the power supply, which can protect a high-pressure sodium lamp from flame damage and prevent the splashing of fragments from exploding. The main technical features of the street lamp include a column having a decorative surface on the outside of the column, a lamp post disposed within the column, a high-pressure sodium lamp connected to the top of the lamp post, a glass protective sleeve disposed on the column to cover the high-pressure sodium lamp, and a support component disposed below the glass protective sleeve that vertically slides with the lamp post. The technical effect is that, by providing a protective component and an on-off switch, when the temperature detected by an external temperature sensor or an internal temperature sensor exceeds the safe operating value of the high-pressure sodium lamp, the solenoid valve is energized and decoupled from the steel protective sleeve. A compressed first spring pushes the unsecured steel protective sleeve upward, thereby protecting the high-pressure sodium lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting street lamps, in particular to a lighting street lamp capable of automatically cutting off power. Background Art

[0002] Street lights refer to lamps that provide lighting for roads. They generally refer to lamps within the scope of road lighting in traffic lighting. Street lights are widely used in various places where lighting is needed. According to the light source, they include high-pressure sodium lamps, LED street lights, energy-saving street lights and new xenon street lights.

[0003] Among them, high-pressure sodium lamps have the characteristics of high luminous efficiency, low ultraviolet radiation, and good fog penetration. They are often used in foggy and dusty mountainous areas and coastal roads, docks and ports, and factory environments. In order to ensure the safety of high-pressure sodium lamps, some street lamps will add circuit breakers in their circuits. The circuit breakers can be used to disconnect the current to prevent excessive current from damaging the high-pressure sodium lamps.

[0004] However, existing high-pressure sodium lamps do not have good fire and explosion-proof functions. When street lamps encounter external fire sources, the temperature of the high-pressure sodium lamps will rise sharply, causing the high-pressure sodium lamps to explode. On the one hand, this will cause damage to the high-pressure sodium lamps and cause property losses. On the other hand, when the high-pressure sodium lamps explode, the flying fragments of the explosion can easily cause personal injury. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a lighting street lamp which can protect a high-pressure sodium lamp from flame damage and prevent the explosion of fragments from splashing and can automatically cut off the power supply.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lighting street lamp capable of automatic power off, comprising a column, the outer side of the column being provided with a decorative surface, a lamp post being provided within the column, a high-pressure sodium lamp being connected to the top of the lamp post, a glass protective tube being provided on the column to cover the high-pressure sodium lamp, a support component being provided below the glass protective tube and vertically slidingly engaged with the lamp post, a protective component being provided within the column to sleeve on the outer side of the glass protective tube, and a linkage component being provided within the column to transmission-engage with the protective component and the support component;

[0007] The protective component includes a steel casing that is vertically slidably matched with the top of the column, a fixing seat connected to the inner wall of the column is provided under the steel casing, a first spring in a compressed state is provided between the fixing seat and the steel casing, a solenoid valve that locks the position of the steel casing is provided in the column, an on-off switch that is triggered by the squeezing of the steel casing is provided at the top of the column, the on-off switch is connected in series to the circuit of the high-pressure sodium lamp, an external temperature sensor that is electrically connected to the solenoid valve is provided on the outside of the column, and a built-in temperature sensor that is electrically connected to the solenoid valve is provided at the top of the lamp post;

[0008] Preferably, the linkage component includes a first rack provided under the steel casing and a second rack provided on the supporting component, a gear connected to the inside of the column is provided between the first rack and the second rack, and a stabilizing frame that slides with the lamp post is provided on the back of the second rack;

[0009] A support column is provided at the top of the column body. A rainproof cover plate is provided on the support column and fits with the top of the glass protective tube. A plug-in slot that matches with the steel protective tube is provided under the rainproof cover plate.

[0010] Preferably, the supporting component includes a supporting plate that vertically slides with the lamp post, the supporting plate is fixedly connected to the second rack, a sliding rod is provided on the supporting plate, a supporting seat is vertically slidably connected to the sliding rod, the supporting seat is plugged into the glass protective tube, and a second spring in an extended state is sleeved on the sliding rod.

[0011] Preferably, a rubber ring is provided in the support seat, and the rubber ring fits with the glass protective tube.

[0012] Preferably, an air supply duct is provided in the lamp post, an air outlet connected to the air supply duct and the internal space of the glass protective tube is provided at the top of the lamp post, a forced air cooling component connected to the air supply duct is provided on the outside of the lamp post, and a heat dissipation hole connected to the internal space of the glass protective tube is provided in the rainproof cover.

[0013] Preferably, the forced air cooling component includes an induced draft tube connected to the air supply duct, a connecting plate connected to the lamp post is provided on the outside of the induced draft tube, a fan for blowing air into the air supply duct is provided inside the induced draft tube, and a dust filter assembly cooperating with the fan is provided inside the induced draft tube.

[0014] Preferably, the dust filter assembly includes a dust filter cartridge that slides with the inner wall of the induced draft tube, the dust filter cartridge is provided with a connecting frame connected to the fan, the inner wall of the induced draft tube is provided with a sliding groove that slides with the connecting frame, and the connecting frame is provided with a third spring connected to the inner wall of the induced draft tube.

[0015] Preferably, a movable groove is provided on the column, a connecting groove is provided under the rainproof cover plate to be clamped with the top end of the support column, and a cover locking component is provided in the movable groove to drive the support column to be clamped and separated from the connecting groove.

[0016] Preferably, the cover locking component includes a slide rail arranged in a movable groove and slidingly engaged with the support column, and a connecting rod hinged to the side of the support column, the other end of the connecting rod is eccentrically hinged with a disc, and the side of the disc is provided with a lock that passes through the column and rotates with it.

[0017] Preferably, a reflective cover is provided on the side of the lamp post below the air outlet, the edge of the reflective cover is in contact with the inner wall of the glass protective tube, and a sealing ring is provided on the outer side of the top end of the glass protective tube to be in contact with the inner wall of the steel protective tube.

[0018] Preferably, a rubber sheet covering the top opening of the movable groove is provided on the side of the support column.

[0019] Compared with the prior art, the present invention provides a street lamp capable of automatically shutting off power, which has the following beneficial effects:

[0020] 1. By setting a protective component and an on-off switch, the protective component is in a storage state under normal conditions. At this time, the high-pressure sodium lamp is protected by a glass protective tube. When the temperature detected by the external temperature sensor or the built-in temperature sensor exceeds the safe working value of the high-pressure sodium lamp, a signal will be sent to the solenoid valve in the protective component. At this time, the solenoid valve is energized and separated from the steel protective tube. The first spring in the compressed state pushes the unfixed steel protective tube to bounce upward, and the high-pressure sodium lamp is protected by the steel protective tube. On the one hand, the steel protective tube can isolate the influence of external flames on the high-pressure sodium lamp. On the other hand, when the high-pressure sodium lamp explodes accidentally, the steel protective tube can be used to block the fragments to prevent the fragments from flying and injuring people. At the same time, after the steel protective tube bounces upward, it will lose the squeeze on the on-off switch, so that the on-off switch disconnects the circuit of the high-pressure sodium lamp, preventing the problem of leakage after the high-pressure sodium lamp explodes.

[0021] 2. By setting a linkage component, when the steel casing bounces upward, it will drive the first rack in the linkage component to move upward, and the first rack will drive the second rack to move downward through the gear. The second rack will drive the glass casing downward through the supporting component, so that the glass casing will shrink into the column. In this way, the glass casing is protected to avoid damage to the glass casing caused by accidental explosion of the high-pressure sodium lamp, so that the glass casing can be reused.

[0022] 3. By setting up a supporting component, the supporting component uses the second spring inside to push the supporting seat upward, so that the glass protective tube can fit with the top rainproof cover under normal conditions, thereby protecting the high-pressure sodium lamp. When the high-pressure sodium lamp needs to be maintained and replaced, the glass protective tube is directly pressed downward. After the glass protective tube is compressed, it drives the supporting seat to move downward along the sliding rod. At this time, the glass protective tube can be pressed into the column without triggering the steel protective tube. Then the high-pressure sodium lamp to be replaced can be removed and a new high-pressure sodium lamp can be installed. This method facilitates the maintenance and replacement of the high-pressure sodium lamp.

[0023] 4. By setting up forced air cooling components, the high-pressure sodium lamp will emit heat when it is working. At this time, the forced air cooling components will use the internal fan to inhale the outside air, and then send it into the glass protective tube through the air supply duct and the air outlet. The outside cold air is used to cool the high-pressure sodium lamp, reducing the risk of the high-pressure sodium lamp bursting due to its own high temperature. After the outside air is injected into the glass protective tube, the hot air inside it has a lighter specific gravity and will move upward. Then, under the continuously injected air pressure, it will be discharged through the heat dissipation holes to prevent the problem of heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 Schematic diagram of the cross section of the column of the present invention;

[0026] Figure 3 Schematic cross-sectional view of the protective component of the present invention;

[0027] Figure 4 Schematic cross-sectional view of the supporting component of the present invention;

[0028] Figure 5 Schematic cross-sectional view of the lamp post of the present invention;

[0029] Figure 6 This is a schematic cross-sectional view of the forced air cooling component of the present invention;

[0030] Figure 7 This is a three-dimensional schematic diagram of the cover locking component of the present invention;

[0031] Figure 8 This is a schematic diagram of the cover plate of the present invention from an upward perspective;

[0032] Figure 9 It is a plan view of the protective component, linkage component and support component of the present invention;

[0033] Figure 10 For the present invention Figure 2 Enlarged schematic diagram of point A in the middle.

[0034] In the figure: 1. Column; 2. Decorative surface; 3. Lamp post;

[0035] 4. Forced air cooling components; 401. Induced air duct; 402. Connecting plate; 403. Fan;

[0036] 404, dust filter assembly; 4041, dust filter cartridge; 4042, connecting frame; 4043, slideway; 4044, third spring;

[0037] 5. External temperature sensor; 6. Support column; 7. Rainproof cover; 8. Glass casing;

[0038] 9. Cover locking component; 901. Slide rail; 902. Connecting rod; 903. Disc; 904. Lock;

[0039] 10. Heat dissipation holes; 11. High-pressure sodium lamp; 12. Reflector; 13. Built-in temperature sensor; 14. Movable slot;

[0040] 15. Protective components; 1501. Steel casing; 1502. First spring; 1503. Fixed seat; 1504. Solenoid valve;

[0041] 16. Support component; 1601. Support plate; 1602. Sliding rod; 1603. Second spring; 1604. Support seat; 1605. Rubber ring;

[0042] 17. Linkage component; 1701. First rack; 1702. Second rack; 1703. Gear;

[0043] 18. Stabilizing frame; 19. Sealing ring; 20. Air outlet; 21. Air supply duct; 22. Rubber sheet; 23. Connection slot; 24. Plug slot; 25. On / off switch. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] See also Figure 1-10 A street lamp capable of automatic power off includes a column 1, a decorative surface 2 being provided on the outside of the column 1, a lamp post 3 being provided inside the column 1, a high-pressure sodium lamp 11 being connected to the top of the lamp post 3, a glass protective tube 8 being provided on the column 1 and covering the high-pressure sodium lamp 11, a support component 16 being provided below the glass protective tube 8 and vertically slidingly engaged with the lamp post 3, a protective component 15 being provided inside the column 1 and sleeved on the outside of the glass protective tube 8, and a linkage component 17 being provided inside the column 1 and engaging with the protective component 15 and the support component 16 in transmission;

[0046] The protective component 15 includes a steel casing 1501 that slides vertically with the top of the column 1. A fixing seat 1503 connected to the inner wall of the column 1 is provided below the steel casing 1501. A first spring 1502 in a compressed state is provided between the fixing seat 1503 and the steel casing 1501. A solenoid valve 1504 that locks the position of the steel casing 1501 is provided inside the column 1. An on-off switch 25 that is triggered by the compression of the steel casing 1501 is provided at the top of the column 1. The on-off switch 25 is connected in series to the circuit of the high-pressure sodium lamp 11. An external temperature sensor 5 electrically connected to the solenoid valve 1504 is provided on the outside of the column 1. The top of the lamp post 3 is provided with a built-in temperature sensor 13 electrically connected to the solenoid valve 1504.

[0047] By setting an on-off switch 25, an external temperature sensor 5 and a built-in temperature sensor 13, the on-off switch 25 is in the open state after being squeezed by the steel casing 1501. At this time, the circuit of the high-pressure sodium lamp 11 is connected, and when the steel casing 1501 bounces up, the on-off switch 25 will rebound and reset, and be in the disconnected state. At this time, the circuit of the high-pressure sodium lamp 11 is disconnected, achieving the effect of automatic power-off, and the power-off operation is after the solenoid valve 1504 is triggered, so that it will not affect the operation of the solenoid valve 1504. The external temperature sensor 5 can detect the temperature outside the column 1 and sense whether there is a high temperature or fire problem in the outside world, and the built-in temperature sensor 13 can detect the temperature of the high-pressure sodium lamp 11 and sense whether the high-pressure sodium lamp 11 itself has a high temperature problem.

[0048] The linkage component 17 includes a first rack 1701 provided under the steel casing 1501 and a second rack 1702 provided on the support component 16. A gear 1703 connected to the interior of the column 1 is provided between the first rack 1701 and the second rack 1702. A stabilizing frame 18 is provided on the back of the second rack 1702 to slide with the lamp post 3.

[0049] In the present invention, a protective component 15 and a linkage component 17 are provided. The protective component 15 is in a storage state under normal conditions. At this time, the high-pressure sodium lamp 11 is protected by the glass protective tube 8. When the temperature detected by the external temperature sensor 5 or the internal temperature sensor 13 exceeds the safe operating value of the high-pressure sodium lamp 11, a signal is sent to the solenoid valve 1504 in the protective component 15. At this time, the solenoid valve 1504 is energized and separated from the steel protective tube 1501. The first spring 1502 in a compressed state pushes the unfixed steel protective tube 1501 to bounce upward, and the high-pressure sodium lamp 11 is protected by the steel protective tube 1501. On the one hand, the steel protective tube 1501 can isolate the high-pressure sodium lamp 11 from the influence of external flames. On the other hand, when the high-pressure sodium lamp 11 accidentally explodes, the steel protective tube 1501 can be used to block the fragments to prevent the fragments from flying and injuring people.

[0050] When the steel casing 1501 bounces upward, it drives the first rack 1701 in the linkage component 17 to move upward. The first rack 1701 drives the second rack 1702 to move downward through the gear 1703. The second rack 1702 drives the glass casing 8 to move downward through the supporting component 16, so that the glass casing 8 shrinks into the column 1. In this way, the glass casing 8 is protected to prevent damage to the glass casing 8 caused by the accidental explosion of the high-pressure sodium lamp 11, so that the glass casing 8 can be reused and the glass casing 8 is prevented from shattering and generating a large amount of debris.

[0051] The top of the column 1 is provided with a support column 6, on which a rainproof cover plate 7 is provided, which fits the top of the glass casing 8. A plug-in slot 24 is provided under the rainproof cover plate 7, which fits the steel casing 1501.

[0052] By providing the rainproof cover 7, the rainproof cover 7 can protect the top of the high-pressure sodium lamp 11, and by cooperating with the glass protective tube 8 and the steel protective tube 1501, the effect of fully protecting the high-pressure sodium lamp 11 is achieved, and it will not affect the extension and storage of the glass protective tube 8 and the steel protective tube 1501. At the same time, it can prevent rainwater from intruding. In addition, the aesthetics of the street lamp can be improved through the appearance design.

[0053] like Figure 3 As shown, the specific support component 16 includes a support plate 1601 that vertically slides with the lamp post 3. The support plate 1601 is fixedly connected to the second rack 1702. A slide bar 1602 is provided on the support plate 1601. A support seat 1604 is vertically slidably connected to the slide bar 1602. The support seat 1604 is plugged into the glass protection tube 8. The slide bar 1602 is sleeved with a second spring 1603 in an extended state.

[0054] By providing a support component 16, the support component 16 uses the internal second spring 1603 to push the support seat 1604 upward, so that the glass protective tube 8 can be fitted with the top rainproof cover 7 under normal circumstances, thereby protecting the high-pressure sodium lamp 11. When the high-pressure sodium lamp 11 needs to be maintained or replaced, the glass protective tube 8 is directly pressed downward. After the glass protective tube 8 is compressed, it drives the support seat 1604 to move downward along the slide rod 1602. At this time, the glass protective tube 8 can be pressed into the column 1 without triggering the steel protective tube 1501. Then the high-pressure sodium lamp 11 to be replaced can be removed and a new high-pressure sodium lamp 11 can be installed. This method facilitates the maintenance and replacement of the high-pressure sodium lamp 11.

[0055] like Figure 10 As shown, a rubber ring 1605 is provided in the support seat 1604, and the rubber ring 1605 fits with the glass protective tube 8;

[0056] By setting a rubber ring 1605, the rubber ring 1605 is set in the support seat 1604. When the glass protective tube 8 is inserted into the support seat 1604, the rubber ring 1605 will be squeezed and deformed, so that the rubber ring 1605 uses its own elasticity to squeeze and fix the glass protective tube 8, and at the same time uses its own flexibility to prevent damage to the glass protective tube 8, thereby ensuring the safety and stability of the glass protective tube 8 during use, and making the glass protective tube 8 convenient to plug in and replace.

[0057] like Figure 5 As shown, the lamp post 3 is provided with an air supply duct 21, and an air outlet 20 is provided at the top of the lamp post 3, which is connected to the air supply duct 21 and the interior space of the glass protective tube 8. A forced air cooling component 4 is provided on the outside of the lamp post 3, which is connected to the air supply duct 21. A heat dissipation hole 10 is provided in the rainproof cover 7, which is connected to the interior space of the glass protective tube 8.

[0058] By providing the forced air cooling component 4, when the high-pressure sodium lamp 11 is working, it will emit heat. At this time, the forced air cooling component 4 will use the internal fan 403 to draw in external air, and then send it into the glass protective tube 8 through the air supply duct 21 and the air outlet 20. The external cold air is used to cool the high-pressure sodium lamp 11, reducing the risk of the high-pressure sodium lamp 11 bursting due to its own high temperature. After the external air is injected into the glass protective tube 8, the hot air inside has a lighter specific gravity and moves upward. Then, under the pressure of the continuously injected air, it is discharged through the heat dissipation hole 10, preventing the problem of heat accumulation.

[0059] It should be further explained that by supplying air into the glass protective tube 8, a positive pressure can be created inside the glass protective tube 8. The positive pressure allows the air inside to escape outward through the gap, rather than allowing the air to flow inward through the gap between the glass protective tube 8 and the rainproof cover 7. This can prevent dust in the air from entering the glass protective tube 8 through the gap, and can also reduce the sealing pressure of the glass protective tube 8.

[0060] like Figure 6 As shown, the specific forced air cooling component 4 includes an air duct 401 connected to the air supply duct 21, a connecting plate 402 connected to the lamp post 3 is provided on the outside of the air duct 401, a fan 403 for blowing air into the air supply duct 21 is provided in the air duct 401, and a dust filter assembly 404 is provided in the air duct 401 to cooperate with the fan 403;

[0061] By setting up the fan 403 and the dust filter assembly 404, the fan 403 can suck in the outside air and transport it into the glass protective tube 8 through the air supply duct 21 and the air outlet 20, thereby achieving the effect of active forced air cooling, which can reduce the temperature of the high-pressure sodium lamp 11 during operation and reduce the problem of the high-pressure sodium lamp 11 bursting due to poor heat dissipation. The dust filter assembly 404 can filter the incoming air to prevent dust and mosquitoes in the air from entering the glass protective tube 8, thereby ensuring the cleanliness of the high-pressure sodium lamp 11.

[0062] like Figure 6 As shown, the specific dust filter assembly 404 includes a dust filter cartridge 4041 that slides with the inner wall of the induced draft tube 401. The dust filter cartridge 4041 is provided with a connecting frame 4042 that is connected to the fan 403. The inner wall of the induced draft tube 401 is provided with a sliding groove 4043 that slides with the connecting frame 4042. The connecting frame 4042 is provided with a third spring 4044 that is connected to the inner wall of the induced draft tube 401.

[0063] By setting the third spring 4044 and the connecting frame 4042, when the fan 403 is supplying air, it will supply air upwards. According to the law of mechanics, the fan 403 will be subjected to a downward reaction force. At this time, the fan 403 will drive the connecting frame 4042 to move downward in the slide groove 4043, and correspondingly drive the dust filter cartridge 4041 to move downward, so that the dust filter cartridge 4041 extends out of the induced draft tube 401 to perform dust filtering. When the fan 403 stops working, the connecting frame 4042 will drive the dust filter cartridge 4041 to reset under the pull of the third spring 4044, so that the dust filter cartridge 4041 retracts into the induced draft tube 401, and utilizes the fit with the inside of the induced draft tube 401 to scrape off the dust and mosquitoes adsorbed on the outside, thereby achieving an automatic cleaning effect.

[0064] like Figure 1 、 2 As shown, a movable groove 14 is provided on the specific column 1, and a connecting groove 23 is provided under the rain cover 7 to be engaged with the top of the support column 6. A cover locking component 9 is provided in the movable groove 14 to drive the support column 6 to engage and separate with the connecting groove 23;

[0065] By setting the movable groove 14 and the connecting groove 23, the movable groove 14 can accommodate the cover locking component 9 and the support column 6, so that the support column 6 can move horizontally. In this way, the support seat 1604 can be engaged or separated from the connecting groove 23, so that the rainproof cover 7 can be disassembled. After the rainproof cover 7 is disassembled, the top surface of the glass protective tube 8 will be exposed. At this time, the glass protective tube 8 can be directly pressed downward to be stored, which is convenient for replacing the high-pressure sodium lamp 11. In addition, after the rainproof cover 7 is disassembled, the fragments of the high-pressure sodium lamp 11 caused by accidental explosion can be easily cleaned.

[0066] like Figure 7As shown, the cover locking component 9 includes a slide rail 901 provided in the movable groove 14 and slidingly engaged with the support column 6, and a connecting rod 902 hinged to the side of the support column 6. The other end of the connecting rod 902 is eccentrically hinged to a disk 903. The side of the disk 903 is provided with a lock 904 that penetrates the column 1 and rotates therewith.

[0067] By setting up the lock 904 and the disk 903, when the rain cover 7 needs to be removed, the lock 904 is rotated with the key, so that the lock 904 drives the disk 903 to rotate, and the disk 903 uses the eccentric hinged connecting rod 902 to push the support column 6 to move, so that the support column 6 moves to both sides, so that the bend at the top is separated from the connecting groove 23, thereby achieving the purpose of quick unlocking. When the rain cover 7 needs to be locked, the above movement is repeated in reverse.

[0068] like Figure 2 、 3 As shown, a reflector 12 is provided on the side of the lamp post 3 below the air outlet 20. The edge of the reflector 12 is in contact with the inner wall of the glass protective tube 8. A sealing ring 19 is provided on the outer side of the top of the glass protective tube 8 and in contact with the inner wall of the steel protective tube 1501.

[0069] By providing the reflective cover 12 and the sealing ring 19, the reflective cover 12 can reflect the light directed downward into the column 1 and make it irradiate outside the glass protective tube 8, thereby avoiding waste of light. The reflective cover 12 can also be used to seal the gap between the lamp post 3 and the glass protective tube 8, on the one hand preventing the heat of the light from being transferred into the column 1, and on the other hand preventing the fragments of the high-pressure sodium lamp 11 from falling into the column 1 after the explosion, thereby hindering the cleaning work. The sealing ring 19 can seal the gap between the glass protective tube 8 and the steel protective tube 1501, further preventing debris from falling into the column 1.

[0070] like Figure 7 As shown, the side of the specific support column 6 is provided with a rubber sheet 22 covering the top opening of the movable groove 14;

[0071] By setting a rubber sheet 22, the rubber sheet 22 is arranged on the side of the support column 6 and moves with the support column 6, and covers the opening of the movable groove 14 itself, so that the movable groove 14 can remain closed, preventing rainwater or dust from falling into the column 1 through the movable groove 14, thereby ensuring the stable operation of the cover locking component 9.

[0072] Working principle: When encountering an external fire or the temperature of the high-pressure sodium lamp 11 itself is too high, the external temperature sensor 5 or the built-in temperature sensor 13 is triggered and controls the solenoid valve 1504 to work. After the solenoid valve 1504 is energized, the fixation of the steel casing 1501 is released. At this time, the first spring 1502 releases its own elastic force to push the steel casing 1501 upward, so that the steel casing 1501 is connected to the plug-in slot 24 under the rainproof cover 7. The steel casing 1501 is used to isolate the external flame and prevent the fragments of the high-pressure sodium lamp 11 from flying. At the same time, when the steel casing 1501 bounces upward, the pressure on the on-off switch 25 is released, so that the on-off switch 25 is turned off, and the high-pressure sodium lamp 11 is powered off.

[0073] When the steel protective tube 1501 bounces upward, it will drive the first rack 1701 below to move upward, and the first rack 1701 will drive the second rack 1702 to move downward through the gear 1703. The second rack 1702 will drive the glass protective tube 8 to move downward through the support component 16, so that the glass protective tube 8 is retracted into the column 1, preventing the fragments of the bursting high-pressure sodium lamp 11 from damaging the glass protective tube 8.

[0074] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A street lamp capable of automatically shutting off power, comprising a column (1), characterized in that: The outer side of the column (1) is provided with a decorative surface (2), the column (1) is provided with a lamp post (3), the top of the lamp post (3) is connected to a high-pressure sodium lamp (11), the column (1) is provided with a glass protective tube (8) covering the high-pressure sodium lamp (11), the lower side of the glass protective tube (8) is provided with a support component (16) vertically slidingly matched with the lamp post (3), the column (1) is provided with a protective component (15) sleeved on the outer side of the glass protective tube (8), and the column (1) is provided with a linkage component (17) in transmission cooperation with the protective component (15) and the support component (16); The protective component (15) includes a steel casing (1501) that is vertically slidably matched with the top of the column (1), a fixing seat (1503) connected to the inner wall of the column (1) is provided under the steel casing (1501), a first spring (1502) in a compressed state is provided between the fixing seat (1503) and the steel casing (1501), a solenoid valve (1504) for locking the position of the steel casing (1501) is provided in the column (1), an on-off switch (25) that is triggered by the squeezing of the steel casing (1501) is provided at the top of the column (1), the on-off switch (25) is connected in series to the circuit of the high-pressure sodium lamp (11), an external temperature sensor (5) electrically connected to the solenoid valve (1504) is provided on the outside of the column (1), and a built-in temperature sensor (13) electrically connected to the solenoid valve (1504) is provided at the top of the lamp post (3); A support column (6) is provided at the top of the column (1), and a rainproof cover plate (7) is provided on the support column (6) and is fitted with the top of the glass protective tube (8). A plug-in slot (24) is provided below the rainproof cover plate (7) and is fitted with the steel protective tube (1501).

2. The street lamp capable of automatic power-off according to claim 1, characterized in that: The linkage component (17) comprises a first rack (1701) provided under the steel casing (1501), and a second rack (1702) provided on the support component (16); a gear (1703) connected to the interior of the column (1) is provided between the first rack (1701) and the second rack (1702); and a stabilizing frame (18) that slidably cooperates with the lamp post (3) is provided on the back of the second rack (1702).

3. The street lamp capable of automatic power-off according to claim 2, characterized in that: The support component (16) includes a support plate (1601) that vertically slides with the lamp post (3), the support plate (1601) is fixedly connected to the second rack (1702), a slide bar (1602) is provided on the support plate (1601), a support seat (1604) is vertically slidably connected to the slide bar (1602), the support seat (1604) is plugged into the glass protective tube (8), and a second spring (1603) in an extended state is sleeved on the slide bar (1602).

4. The street lamp capable of automatic power-off according to claim 3, characterized in that: A rubber ring (1605) is provided inside the support seat (1604), and the rubber ring (1605) fits the glass protective tube (8).

5. The street lamp capable of automatic power-off according to claim 1, characterized in that: An air supply duct (21) is provided in the lamp post (3), an air outlet (20) is provided at the top end of the lamp post (3) and is in communication with the air supply duct (21) and the interior space of the glass protective tube (8), a forced air cooling component (4) is provided on the outside of the lamp post (3) and is in communication with the air supply duct (21), and a heat dissipation hole (10) is provided in the rainproof cover (7) and is in communication with the interior space of the glass protective tube (8).

6. The street lamp capable of automatic power-off according to claim 5, characterized in that: The forced air cooling component (4) comprises an air duct (401) connected to the air supply duct (21); a connecting plate (402) connected to the lamp post (3) is provided on the outside of the air duct (401); a fan (403) for blowing air into the air supply duct (21) is provided in the air duct (401); and a dust filter assembly (404) cooperating with the fan (403) is provided in the air duct (401).

7. The street lamp capable of automatic power-off according to claim 6, characterized in that: The dust filter assembly (404) comprises a dust filter cartridge (4041) that is slidably engaged with the inner wall of the induced draft tube (401); a connecting frame (4042) connected to the fan (403) is provided on the dust filter cartridge (4041); a sliding groove (4043) that is slidably engaged with the connecting frame (4042) is provided on the inner wall of the induced draft tube (401); and a third spring (4044) that is connected to the inner wall of the induced draft tube (401) is provided on the connecting frame (4042).

8. The street lamp capable of automatic power-off according to claim 1, characterized in that: A movable groove (14) is provided on the column (1), a connecting groove (23) is provided below the rainproof cover (7) for engaging with the top end of the support column (6), and a cover locking component (9) is provided in the movable groove (14) for engaging and disengaging the support column (6) and the connecting groove (23).

9. The street lamp capable of automatic power-off according to claim 8, characterized in that: The cover plate locking component (9) comprises a slide rail (901) provided in the movable groove (14) and slidably engaged with the support column (6), and a connecting rod (902) hinged to the side of the support column (6), the other end of the connecting rod (902) being eccentrically hinged with a disc (903), and a lock (904) penetrating the column (1) and rotatably engaged therewith is provided on the side of the disc (903).

10. The street lamp capable of automatic power-off according to claim 1, characterized in that: A reflective cover (12) is provided on the side of the lamp post (3) below the air outlet (20), the edge of the reflective cover (12) is in contact with the inner wall of the glass protective tube (8), and a sealing ring (19) is provided on the outer side of the top end of the glass protective tube (8) and is in contact with the inner wall of the steel protective tube (1501).

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