Lighting street lamp capable of being automatically powered off

Abstract

The invention discloses a lighting street lamp capable of being automatically powered off, relates to the technical field of lighting street lamps, and aims to provide the lighting street lamp capable of being automatically powered off, which can protect a high-pressure sodium lamp from being damaged by flames and can prevent burst fragments from splashing. A lamp post is arranged in the post body, the top end of the lamp post is connected with a high-pressure sodium lamp, a glass protective cylinder covering the high-pressure sodium lamp is arranged on the post body, and a supporting component vertically matched with the lamp post in a sliding mode is arranged below the glass protective cylinder. The high-pressure sodium lamp has the technical effects that by arranging the protection part and the on-off switch, when the temperature detected by the external temperature sensor or the internal temperature sensor exceeds the safe working value of the high-pressure sodium lamp, the electromagnetic valve is electrified to work and is separated from the steel casing, and the first spring in a compressed state pushes the steel casing which is not fixed to bounce upwards; and the high-pressure sodium lamp is protected by using the steel casing.

Description

Technical Field

[0001] The 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 range of road lighting in traffic lighting. Street lights are widely used in various places that require lighting. 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, the existing high-pressure sodium lamps do not have good fire and explosion-proof functions. When the 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, the high-pressure sodium lamps are damaged and cause property losses. On the other hand, when the high-pressure sodium lamps explode, the splashing fragments can easily cause personal injury. Summary of the invention

[0005] 1. Technical issues to be resolved 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 fragments from splashing and can automatically cut off the power supply.

[0006] (II) Technical solution To achieve the above-mentioned object, the present invention provides the following technical solutions: a lighting street lamp capable of automatically shutting off power, comprising a column, a decorative surface is provided on the outer side of the column, a lamp post is provided inside the column, a high-pressure sodium lamp is connected to the top of the lamp post, a glass protective tube is provided on the column and covers the high-pressure sodium lamp, a supporting component is provided below the glass protective tube and vertically slides with the lamp post, a protective component is provided inside the lamp post and sleeved on the outer side of the glass protective tube, and a linkage component is provided inside the column and transmission-coordinated with the protective component and the supporting component; 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 for locking the position of the steel casing is provided in the column, an on-off switch 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 electrically connected to the solenoid valve is provided on the outside of the column, and a built-in temperature sensor electrically connected to the solenoid valve is provided at the top of the lamp post; Preferably, the linkage component comprises 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 slidably matched with the lamp post is provided on the back of the second rack; A support column is arranged at the top of the column body, a rainproof cover plate which fits the top of the glass protective tube is arranged on the support column, and a plug-in groove which matches the steel protective tube is arranged under the rainproof cover plate.

[0007] 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.

[0008] Preferably, a rubber ring is provided in the support seat, and the rubber ring fits with the glass protective tube.

[0009] Preferably, an air supply duct is provided in the lamp post, an air outlet connected to the air supply duct and the inner 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 outer side of the lamp post, and a heat dissipation hole connected to the inner space of the glass protective tube is provided in the rainproof cover.

[0010] Preferably, the forced air cooling component includes an air duct connected to the air supply duct, a connecting plate connected to the lamp post is provided on the outside of the air duct, a fan for blowing air into the air supply duct is provided inside the air duct, and a dust filter assembly cooperating with the fan is provided inside the air duct.

[0011] Preferably, the dust filter assembly includes a dust filter cartridge that slides with the inner wall of the induced draft cylinder, the dust filter cartridge is provided with a connecting frame connected to the fan, the inner wall of the induced draft cylinder 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 cylinder.

[0012] Preferably, a movable groove is provided on the column, a connecting groove which is engaged with the top of the support column is provided under the rainproof cover, and a cover locking component which drives the support column to engage and separate with the connecting groove is provided in the movable groove.

[0013] Preferably, the cover locking component includes a slide rail arranged in the movable groove and slidingly matched 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 disk, and the side of the disk is provided with a lock that penetrates the column and rotates therewith.

[0014] 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 and is in contact with the inner wall of the steel protective tube.

[0015] Preferably, a rubber sheet covering the top opening of the movable groove is provided on the side of the support column.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a street lamp capable of automatically shutting off power, which has the following beneficial effects: 1. By setting the protective component and the 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 splashing and injuring people. At the same time, after the steel protective tube bounces upward, it will lose the squeezing of the on-off switch, so that the on-off switch disconnects the circuit of the high-pressure sodium lamp to prevent leakage after the high-pressure sodium lamp explodes; 2. By setting a linkage component, when the steel protective tube 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, and the second rack will drive the glass protective tube to move downward through the supporting component, so that the glass protective tube shrinks into the column. In this way, the glass protective tube is protected to avoid damage to the glass protective tube caused by accidental explosion of the high-pressure sodium lamp, so that the glass protective tube can be reused.

[0017] 3. By setting 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 pressed, 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.

[0018] 4. By setting up a forced air cooling component, the high-pressure sodium lamp will emit heat when it is working. At this time, the forced air cooling component 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 cold air from the outside is used to cool the high-pressure sodium lamp, reducing the risk of bursting due to the high temperature of the high-pressure sodium lamp. 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, and then be discharged through the heat dissipation holes under the continuously injected air pressure to prevent the problem of heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the column of the present invention; Figure 3 It is a cross-sectional schematic diagram of the protective component of the present invention; Figure 4 It is a cross-sectional schematic diagram of the support component of the present invention; Figure 5 is a schematic cross-sectional view of a lamp post according to the present invention; Figure 6 It is a cross-sectional schematic diagram of the forced air cooling component of the present invention; Figure 7 It is a three-dimensional schematic diagram of the cover locking component of the present invention; Figure 8 This is a schematic diagram of the cover plate of the present invention from a bottom-up perspective; Fig. 9 It is a plan view of the protective component, linkage component and support component of the present invention; Fig.10 For the present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1. Column; 2. Decorative surface; 3. Lamp post; 4. Forced air cooling components; 401. induced draft tube; 402. connecting plate; 403. fan; 404, dust filter assembly; 4041, dust filter cartridge; 4042, connecting frame; 4043, slide slot; 4044, third spring; 5. External temperature sensor; 6. Support column; 7. Rainproof cover; 8. Glass protective tube; 9. Cover plate locking component; 901. Slide rail; 902. Connecting rod; 903. Disc; 904. Lock; 10. Heat dissipation holes; 11. High-pressure sodium lamp; 12. Reflector; 13. Built-in temperature sensor; 14. Movable slot; 15. Protective components; 1501. Steel casing; 1502. First spring; 1503. Fixed seat; 1504. Solenoid valve; 16. Support component; 1601. Support plate; 1602. Sliding rod; 1603. Second spring; 1604. Support seat; 1605. Rubber ring; 17. linkage component; 1701. first rack; 1702. second rack; 1703. gear; 18. Stabilizing frame; 19. Sealing ring; 20. Air outlet; 21. Air supply duct; 22. Rubber sheet; 23. Connecting slot; 24. Plug slot; 25. On / off switch. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-10 A lighting street lamp capable of automatically shutting off power comprises a column 1, a decorative surface 2 is arranged on the outer side of the column 1, a lamp post 3 is arranged inside the column 1, a high-pressure sodium lamp 11 is connected to the top of the lamp post 3, a glass protective tube 8 is arranged on the column 1 and covers the high-pressure sodium lamp 11, a supporting component 16 is arranged below the glass protective tube 8 and vertically slides with the lamp post 3, a protective component 15 is arranged inside the lamp post 3 and is sleeved on the outer side of the glass protective tube 8, and a linkage component 17 is arranged inside the column 1 and is transmission-coordinated with the protective component 15 and the supporting 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, and 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; 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 an 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 is in an off 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 work 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.

[0023] 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 inside 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; 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 working value of the high-pressure sodium lamp 11, a signal is sent to the electromagnetic valve 1504 in the protective component 15. At this time, the electromagnetic valve 1504 is powered on and separated from the steel protective tube 1501. The first spring 1502 in a compressed state pushes the steel protective tube 1501 that has lost its fixation to bounce upward, and the steel protective tube 1501 is used to protect the high-pressure sodium lamp 11. On the one hand, the steel protective tube 1501 can isolate the influence of external flames on the high-pressure sodium lamp 11. On the other hand, when the high-pressure sodium lamp 11 explodes accidentally, the steel protective tube 1501 can be used to block the fragments to prevent the problem of fragments splashing and injuring people. When the steel protective tube 1501 bounces upward, it drives the first rack 1701 in the linkage component 17 to move upward, and the first rack 1701 drives the second rack 1702 to move downward through the gear 1703, and the second rack 1702 drives the glass protective tube 8 to move downward through the supporting component 16, so that the glass protective tube 8 shrinks into the column 1. In this way, the glass protective tube 8 is protected to avoid damage to the glass protective tube 8 caused by accidental explosion of the high-pressure sodium lamp 11, so that the glass protective tube 8 can be reused, and at the same time, the glass protective tube 8 is prevented from breaking and producing a lot of debris.

[0024] A support column 6 is provided at the top of the column body 1, and a rainproof cover plate 7 is provided on the support column 6 to fit the top of the glass casing 8, and a plug-in slot 24 is provided under the rainproof cover plate 7 to match the steel casing 1501; By setting up 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 also be improved through the appearance design.

[0025] 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 with the glass protective tube 8, and a second spring 1603 in an extended state is sleeved on the slide bar 1602; By setting the 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 in contact with the top rainproof cover 7 under normal conditions, thereby protecting the high-pressure sodium lamp 11. When the high-pressure sodium lamp 11 needs to be maintained and replaced, the glass protective tube 8 is directly pressed downward. After the glass protective tube 8 is pressed, it drives the support seat 1604 to move downward along the slide bar 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 disassembled 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.

[0026] like Fig.10 As shown, a rubber ring 1605 is provided inside the support seat 1604, and the rubber ring 1605 fits with the glass protective tube 8; By setting the 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 can squeeze and fix the glass protective tube 8 by its own elasticity, and at the same time use 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.

[0027] like Figure 5 As shown, the lamp post 3 is provided with an air supply duct 21, the top of the lamp post 3 is provided with an air outlet 20 connected with the air supply duct 21 and the inner space of the glass protective tube 8, the outer side of the lamp post 3 is provided with a forced air cooling component 4 connected with the air supply duct 21, and the rainproof cover plate 7 is provided with a heat dissipation hole 10 connected with the inner space of the glass protective tube 8; By setting up the forced air cooling component 4, the high pressure sodium lamp 11 will emit heat when it is working. At this time, the forced air cooling component 4 will use the internal fan 403 to inhale the outside air, and then send it into the glass protective tube 8 through the air supply duct 21 and the air outlet 20, and use the cold air from the outside to cool the high pressure sodium lamp 11, thereby reducing the risk of the high pressure sodium lamp 11 bursting due to its own high temperature. After the outside air is injected into the glass protective tube 8, the hot air inside it has a lighter specific gravity and will move upward, and then be discharged through the heat dissipation hole 10 under the pressure of the continuously injected air, thereby preventing the problem of heat accumulation; 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 reduce the sealing pressure of the glass protective tube 8 on the other hand.

[0028] 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 cooperating with the fan 403 is provided in the air duct 401; By setting up the fan 403 and the dust filter component 404, the fan 403 can suck in the outside air and convey 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 working temperature of the high-pressure sodium lamp 11 and reduce the bursting problem of the high-pressure sodium lamp 11 caused by its own poor heat dissipation. The dust filter component 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.

[0029] like Figure 6 As shown, the specific dust filter assembly 404 includes a dust filter cartridge 4041 that is slidably matched 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 matched 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; 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 air duct 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 is retracted into the air duct 401, and utilizes the fit with the inside of the air duct 401 to scrape off the dust and mosquitoes adsorbed on the outside, thereby achieving an automatic cleaning effect.

[0030] like Figure 1 , 2 As shown, a movable groove 14 is provided on the specific column 1, a connecting groove 23 which is engaged with the top of the support column 6 is provided under the rain cover 7, and a cover locking component 9 which drives the support column 6 to engage and separate with the connecting groove 23 is provided in the movable groove 14; 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 after an accidental explosion can be easily cleaned.

[0031] like Figure 7 As shown, the specific cover plate locking component 9 includes a slide rail 901 provided in the movable groove 14 and slidably matched with the support column 6, and a connecting rod 902 hinged on the side of the support column 6, and the other end of the connecting rod 902 is eccentrically hinged with a disk 903, and the side of the disk 903 is provided with a lock 904 that penetrates the column 1 and rotates therewith; By setting 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, so as to achieve the purpose of quick unlocking. When the rain cover 7 needs to be locked, the above movement is repeated in reverse.

[0032] like Figure 2 , 3As 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, and a sealing ring 19 is provided on the outer side of the top of the glass protective tube 8 to be in contact with the inner wall of the steel protective tube 1501; By providing the reflective cover 12 and the sealing ring 19, the reflective cover 12 can reflect the light irradiated downward into the column 1 and make it irradiate outside the glass protective tube 8 to avoid waste of light. The reflective cover 12 can also be used to close the gap between the lamp post 3 and the glass protective tube 8. On the one hand, it can prevent the heat of the light from being transferred to the column 1. On the other hand, it can prevent the fragments of the high-pressure sodium lamp 11 from falling into the column 1 after the explosion, causing the cleaning work to be hindered. The sealing ring 19 can close the gap between the glass protective tube 8 and the steel protective tube 1501 to further prevent the debris from falling into the column 1.

[0033] 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; By setting a rubber sheet 22, the rubber sheet 22 is arranged on the side of the support column 6, moves with the support column 6, and covers the opening of the movable groove 14, so that the movable groove 14 can remain closed, preventing rain or dust from falling into the column 1 through the movable groove 14, thereby ensuring the stable operation of the cover locking component 9.

[0034] Working principle: When there is a fire outside or the temperature of the high-pressure sodium lamp 11 itself is too high, the external temperature sensor 5 or the internal temperature sensor 13 is triggered, and the electromagnetic valve 1504 is controlled to work. After the electromagnetic valve 1504 is energized, the steel casing 1501 is released. At this time, the first spring 1502 releases its 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 rain 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 splashing. At the same time, when the steel casing 1501 bounces upward, the squeezing of the on-off switch 25 will be released, so that the on-off switch 25 is closed, and the high-pressure sodium lamp 11 is powered off. 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, and the second rack 1702 will drive the glass protective tube 8 to move downward through the supporting component 16, so that the glass protective tube 8 is retracted into the column 1, so as to prevent the fragments of the bursting high-pressure sodium lamp 11 from damaging the glass protective tube 8.

[0035] 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 replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A street lamp capable of automatically shutting off power, comprising a column (1), characterized in that: The column (1) is provided with a decorative surface (2) on the outside, the column (1) is provided with a lamp post (3) inside, 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), a support component (16) vertically slidingly matched with the lamp post (3) is provided under the glass protective tube (8), the lamp post (3) is provided with a protective component (15) sleeved on the outside of the glass protective tube (8), and a linkage component (17) drivingly matched with the protective component (15) and the support component (16) is provided inside the column (1); The protective component (15) comprises a steel casing (1501) which 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 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) for locking the position of the steel casing (1501) is provided inside the column (1); an on-off switch (25) which 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) which is electrically connected to the solenoid valve (1504) is provided on the outside of the column (1); and a built-in temperature sensor (13) which is 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 automatically shutting off power 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 inside of the column (1) is provided between the first rack (1701) and the second rack (1702); and a stabilizing frame (18) slidably engaged with the lamp post (3) is provided on the back of the second rack (1702).

3. The street lamp capable of automatically shutting off power according to claim 2, characterized in that: The support component (16) comprises a support plate (1601) which is vertically slidably matched 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 automatically shutting off power 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 automatically shutting off power 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 of the lamp post (3) and is connected to the air supply duct (21) and the internal space of the glass protective tube (8), a forced air cooling component (4) connected to the air supply duct (21) is provided on the outside of the lamp post (3), and a heat dissipation hole (10) is provided in the rainproof cover plate (7) and is connected to the internal space of the glass protective tube (8).

6. The street lamp capable of automatically shutting off power according to claim 5, characterized in that: The forced air cooling component (4) comprises an air induced draft tube (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 induced draft tube (401); a fan (403) for blowing air into the air supply duct (21) is provided inside the air induced draft tube (401); and a dust filter assembly (404) cooperating with the fan (403) is provided inside the air induced draft tube (401).

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

8. The street lamp capable of automatically shutting off power according to claim 1, characterized in that: The column (1) is provided with a movable groove (14), the rainproof cover plate (7) is provided with a connecting groove (23) at the bottom thereof for engaging with the top end of the support column (6), and the movable groove (14) is provided with a cover plate locking component (9) for driving the support column (6) to engage with and separate from the connecting groove (23).

9. The street lamp capable of automatically shutting off power according to claim 8, characterized in that: The cover plate locking component (9) comprises a slide rail (901) disposed 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 disk (903), and a lock (904) penetrating the column (1) and rotatably engaged therewith is provided on the side of the disk (903).

10. The street lamp capable of automatically shutting off power 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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