A construction site lighting apparatus

Abstract

The application belongs to the technical field of lighting equipment, and particularly relates to a construction engineering lighting device, which comprises a lamp body and a mounting frame, the lamp body is rotationally arranged in the interior of the mounting frame, the back of the lamp body is fixedly provided with a plurality of uniformly distributed heat dissipation fins, and the construction engineering lighting device further comprises: an angle detection mechanism, which is fixedly arranged on the side wall of the mounting frame and is linked with the side rotating part of the lamp body; a blowing mechanism, which is arranged on the inner side wall of the mounting frame and has a blowing end extending to one side of the plurality of heat dissipation fins, and the blowing strength of the blowing mechanism is directly proportional to the elevation angle detected by the angle detection mechanism. The blowing mechanism and the air volume adjusting mechanism are linked by the angle detection mechanism, and the airflow form is optimized by cooperating with the flow distribution ribs and the turbulence ribs, the heat dissipation air volume can be dynamically distributed according to the elevation angle of the lamp body, the problem of heat accumulation on the upper part of the heat dissipation fins under the large-elevation-angle working condition is effectively solved, and the construction engineering lighting device has the advantages of energy saving, noise reduction, dust prevention and moisture prevention.

Description

Technical Field

[0001] This invention belongs to the field of lighting equipment technology, and in particular relates to a lighting device for architectural engineering. Background Technology

[0002] In construction engineering and outdoor lighting operations, high-power floodlights are core lighting equipment, capable of meeting the needs of large-scale, high-brightness nighttime construction, site lighting, and projection lighting of building facades. To adapt to the lighting needs of different illumination ranges, existing high-power floodlights used in construction engineering generally adopt an adjustable angle installation structure. The lamp body can rotate freely according to the actual working conditions, thereby flexibly adjusting the illumination angle. At the same time, to solve the heat dissipation problem under high-power operation, high-power floodlights integrate integrated heat dissipation fins on the back of the lamp body. Relying on the large-area heat exchange structure of aluminum fins combined with natural air convection, the heat generated by the LED light source and driver operation is quickly dissipated, ensuring stable operation of the lamp body.

[0003] However, long-term engineering applications have revealed that when the lamp body is vertically downward, the heat dissipation fins on the back are arranged vertically, and the gaps between them can form a smooth vertical convection airflow channel. Hot air can quickly escape upward, resulting in the best heat dissipation efficiency and effectively controlling the operating temperature of the lamp body. However, when the lamp body is tilted upward to adjust the illumination angle according to construction needs, as the tilting angle increases, the originally vertically arranged heat dissipation fins on the back rotate synchronously with the lamp body, gradually changing to a state where the outer ends tilt downward. At this time, the upward floating hot air is blocked by the tilted heat dissipation fins located above, making it difficult to escape smoothly from the gaps. This obstructs the air convection airflow channel between the heat dissipation fins, naturally reducing the convection heat transfer efficiency. This causes the operating temperature of the lamp body to rise abnormally, accelerates the light decay of the lamp beads, and shortens the service life. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a lighting device for architectural engineering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a building lighting device, comprising a lamp body and a mounting frame, wherein the lamp body is rotatably disposed inside the mounting frame, and a plurality of evenly distributed heat dissipation fins are fixedly provided on the back of the lamp body, and further comprising:

[0006] An angle detection mechanism is fixedly installed on the side wall of the mounting bracket, and the angle detection mechanism is linked to one side rotating part of the lamp body;

[0007] A blower mechanism is installed on the inner wall of the mounting bracket, and the blowing end of the blower mechanism extends to one side of multiple heat dissipation fins. The blowing intensity of the blower mechanism is proportional to the elevation angle detected by the angle detection mechanism.

[0008] An airflow adjustment mechanism is located inside the blower mechanism, and the adjustment amount of the airflow adjustment mechanism is proportional to the elevation angle detected by the angle detection mechanism. The angle detection mechanism, the blower mechanism, and the airflow adjustment mechanism are all electrically connected to the controller inside the lamp body.

[0009] Preferably, both sides of the lamp body are fixedly provided with rotating shafts, and both sides of the mounting bracket are rotatably connected to the shaft walls of the two rotating shafts respectively. The ends of the shaft walls of the two rotating shafts are provided with threads, and the shaft walls of the two rotating shafts are threaded with nuts to fix the lamp body and the mounting bracket.

[0010] Preferably, the angle detection mechanism includes a connecting block fixedly mounted on the side wall of the mounting frame, a hollow disk fixedly mounted on the side wall of the connecting block, a resistance ring disposed inside the hollow disk, a fixing seat fixedly mounted at the bottom of the resistance ring and fixedly connected to the bottom of the hollow disk, a conductive block slidably mounted on the top of the resistance ring, and one end of the rotating shaft extending into the interior of the hollow disk and fixedly mounted with a connecting rod, the end of the connecting rod away from the rotating shaft being fixedly connected to the side wall of the conductive block.

[0011] Preferably, the blower mechanism includes a blower duct fixedly mounted on the inner wall of the mounting bracket, an axial fan fixedly mounted inside the blower duct, a dustproof net fixedly mounted at the opening of the blower duct, a hollow blower plate fixedly mounted on the back of the lamp body and on one side of the multiple heat dissipation fins, a flexible air guide tube fixedly mounted between the wall of the blower duct and the side wall of the hollow blower plate, and air blowing holes opened on the side wall of the hollow blower plate at positions corresponding to the multiple heat dissipation fins.

[0012] Preferably, the air volume adjustment mechanism includes an electric push rod fixedly mounted on the side wall of the hollow blower plate. The moving end of the electric push rod is fixedly provided with an adjustment plate. The side of the adjustment plate is fixedly provided with a plurality of evenly distributed adjustment heads. The plurality of adjustment heads extend into the interior of the corresponding blower holes, and the length of the plurality of adjustment heads inside the corresponding blower holes increases sequentially from top to bottom.

[0013] Preferably, the adjusting head has a frustum-shaped structure, the large-diameter end of the adjusting head is fixedly connected to the side of the adjusting plate, and the small-diameter end of the adjusting head is located inside the air blowing hole, and the inner wall of the air blowing hole matches the side wall of the adjusting head.

[0014] Preferably, multiple uniformly distributed baffles are fixedly provided on both sides of the multiple heat dissipation fins, and the end face of the baffles is a semi-circular structure. A diversion rib is fixedly provided on one end of the multiple heat dissipation fins facing the corresponding air blowing hole, and the end face of the diversion rib is a triangular structure.

[0015] Preferably, the mounting bracket is a U-shaped stainless steel frame, and the top of the mounting bracket has a pre-drilled mounting hole.

[0016] Compared with existing technologies, the present invention has the following advantages:

[0017] 1. This invention, through the setting of an angle detection mechanism and a blower mechanism, can synchronously drive the angle detection mechanism to output a corresponding electrical signal and transmit it to the controller inside the lamp body when the illumination angle of the lamp body is adjusted. The larger the elevation angle, the controller will increase the operating power of the axial fan and increase the overall air volume. Relying on the control logic of the elevation angle linkage axial fan power, the air volume is dynamically adjusted as needed. The low power operation is maintained under the condition of small elevation angle. This can solve the problem of poor natural convection and heat accumulation after the lamp body is raised, and also reduce the energy consumption and noise of the axial fan. It is suitable for the use scenario of long-term open-air continuous lighting on construction sites.

[0018] 2. This invention utilizes a specially designed airflow adjustment mechanism that employs an electric push rod linked to an adjustment plate and multiple adjustment heads in conjunction with multiple air vents to achieve differentiated opening control. The initial length of each adjustment head extending into the air vent increases sequentially from top to bottom. As the lamp body's elevation angle increases, the electric push rod retracts, simultaneously expanding the ventilation cross-section of all air vents. Furthermore, the opening increase of the upper corresponding air vent is greater, while the increase is smaller for the lower one. This allows for layered gas distribution to address the situation where the upper heat dissipation fins have poor heat dissipation and the lower heat dissipation is excessive after the lamp body is tilted up. It also provides supplemental airflow to the upper area with weak heat dissipation, significantly reducing the temperature difference between the upper and lower heat dissipation fins, avoiding excessive waste of airflow in the lower part, and saving energy.

[0019] 3. The present invention, through the design of flow dividers and turbulence ribs, allows gas to be blown laterally towards the heat dissipation fins through the air outlets. First, the flow divider tips guide the gas to both sides into the air duct between the heat dissipation fins, preventing gas from clustering and unevenly blowing in certain areas. Subsequently, the gas contacts the turbulence ribs to form turbulence, breaking the single laminar flow state. This allows for thorough mixing of hot and cold air, improving the heat exchange contact efficiency between the heat dissipation fins and the gas. At the same time, the lateral air supply combined with the flow divider and turbulence structure allows the gas to completely penetrate the air duct formed by the heat dissipation fins and blow away accumulated dust and moisture, continuously keeping the air duct unobstructed, expanding the heat dissipation contact area, and further enhancing the heat dissipation capacity. Attached Figure Description

[0020] Figure 1 This is a perspective view of the front of the invention;

[0021] Figure 2 This is a perspective view of the back of the invention;

[0022] Figure 3 This is a perspective view of the angle detection mechanism in this invention;

[0023] Figure 4 This is a perspective view of the blower mechanism in this invention;

[0024] Figure 5 This is a schematic diagram of the air volume regulating mechanism in this invention;

[0025] Figure 6 This is a perspective view of multiple heat dissipation fins in this invention.

[0026] In the diagram: 1. Lamp body, 2. Mounting bracket, 3. Heat sink fins, 4. Angle detection mechanism, 41. Connecting block, 42. Hollow plate, 43. Resistance ring, 44. Fixing base, 45. Conductive block, 46. Connecting rod, 5. Blowering mechanism, 51. Air duct, 52. Axial flow fan, 53. Dustproof net, 54. Hollow blower plate, 55. Flexible air duct, 56. Air vent, 6. Air volume adjustment mechanism, 61. Electric push rod, 62. Adjusting plate, 63. Adjusting head, 7. Rotating shaft, 8. Nut, 9. Baffle rib, 10. Diverter rib. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] like Figures 1-2 and Figure 4 As shown, a building lighting device includes a lamp body 1 and a mounting frame 2. The mounting frame 2 is a U-shaped stainless steel frame with pre-drilled mounting holes at the top. Mounting bolts are inserted into these holes to fix the mounting frame 2 as a whole. The lamp body 1 is rotatably mounted inside the mounting frame 2. Rotating shafts 7 are fixedly mounted on both sides of the lamp body 1. The two sides of the mounting frame 2 are rotatably connected to the shaft walls of the two rotating shafts 7, respectively. The ends of the shaft walls of the two rotating shafts 7 are threaded, and nuts 8 are threadedly connected to the shaft walls of the two rotating shafts 7 to fix the lamp body 1 to the mounting frame 2. By loosening the nuts 8 on both sides, the lamp body 1 is released from the side walls of the mounting frame 2, thus releasing the fixing between the rotating shafts 7 and the mounting frame 2. Rotating the lamp body 1 allows it to rotate within the mounting frame 2 via the rotating shafts 7, adjusting its elevation angle and thereby adjusting the illumination range of the lamp body 1. Multiple evenly distributed heat dissipation fins 3 are fixedly provided on the back of the lamp body 1. When the lamp body 1 is running, the heat generated inside will be dissipated to the outside through the heat dissipation fins 3 to ensure the stability of the lamp body 1. It also includes: an angle detection mechanism 4, which is fixedly set on the side wall of the mounting bracket 2. The angle detection mechanism 4 is linked with the rotating part on one side of the lamp body 1; a blower mechanism 5, which is set on the inner side wall of the mounting bracket 2, and the blowing end of the blower mechanism 5 extends to one side of the multiple heat dissipation fins 3. The blowing intensity of the blower mechanism 5 is proportional to the elevation angle detected by the angle detection mechanism 4; and an air volume adjustment mechanism 6, which is set inside the blower mechanism 5. The adjustment amount of the air volume adjustment mechanism 6 is proportional to the elevation angle detected by the angle detection mechanism 4. The angle detection mechanism 4, the blower mechanism 5 and the air volume adjustment mechanism 6 are all electrically connected to the controller inside the lamp body 1.

[0029] In actual use, in this embodiment, during the adjustment of the lamp body 1's elevation angle, the rotating part on one side of the lamp body 1 synchronously links with the angle detection mechanism 4. The angle detection mechanism 4 outputs a changing electrical signal as the lamp body 1's elevation angle moves. The controller inside the lamp body 1 receives the electrical signal and controls the blower mechanism 5 and the airflow adjustment mechanism 6 to adjust in conjunction. The larger the lamp body 1's elevation angle, the more the total airflow of the blower mechanism 5 gradually increases, and the airflow adjustment mechanism 6 simultaneously adjusts its opening, specifically optimizing the gas distribution to multiple heat dissipation fins 3. After the lamp body 1's elevation angle increases, the upper heat dissipation fins 3 are blocked by rising hot air, resulting in poor heat dissipation conditions. The lower heat dissipation fins 3 have sufficient heat dissipation margin, and the airflow adjustment mechanism 6 can perform zoned control of each gas path, achieving independent control of heat dissipation fins 3 in different positions. The air distribution system can accurately supplement the air volume of the upper heat dissipation fins 3 and adapt to the heat dissipation needs of the lower heat dissipation fins 3, reducing the temperature difference between the upper and lower parts. It eliminates the need for the blower mechanism 5 to operate at high power for a long time, which reduces noise and power consumption. It also prevents dust and water vapor from entering the grooves of the heat dissipation fins 3 due to excessive air pressure. The system is suitable for 0-180° elevation angle conditions and the complex usage environment of the construction site. Conversely, when the elevation angle of the lamp body 1 decreases, the air volume of the blower mechanism 5 gradually decreases, and the opening of the air volume adjustment mechanism 6 gradually decreases, reducing energy consumption. The initial state of the illumination surface of the lamp body 1 is vertically downward (as the starting point). When adjusting the illumination direction, the position of the lamp body 1 is gradually rotated clockwise. The 0-180° clockwise rotation of the illumination surface of the lamp body 1 is the elevation angle adjustment process.

[0030] like Figures 1-3 As shown, in this embodiment, the angle detection mechanism 4 includes a connecting block 41 fixedly mounted on the side wall of the mounting frame 2. A hollow disk 42 is fixedly mounted on the side wall of the connecting block 41. A resistance ring 43 is provided inside the hollow disk 42. A fixing seat 44 fixedly connected to the bottom of the hollow disk 42 is fixedly mounted on the bottom of the resistance ring 43. A conductive block 45 is slidably mounted on the top of the resistance ring 43. One end of a rotating shaft 7 extends into the interior of the hollow disk 42 and is fixedly mounted with a connecting rod 46. The end of the connecting rod 46 away from the rotating shaft 7 is fixedly connected to the side wall of the conductive block 45. 6. Insulating material is used to prevent short circuit conduction. The resistor ring 43 and the conductive block 45 are connected to the same circuit at the same time, and a measuring circuit is provided between them. As the elevation angle of the lamp body 1 changes, the hollow disk 42 and the rotating shaft 7 rotate relative to each other, so that the position of the conductive block 45 on the resistor ring 43 changes, thereby changing the current in the circuit. The hollow disk 42 and the rotating shaft 7 are provided with a rotating sealing structure to prevent external dust from entering and causing poor contact between the resistor ring 43 and the conductive block 45. At the same time, the hollow disk 42 is made of heat-insulating material to avoid the influence of the external high temperature environment.

[0031] In actual use, in this embodiment, when the elevation angle of the lamp body 1 is adjusted to increase, the lamp body 1 rotates clockwise by the rotating shaft 7, and drives the conductive block 45 to slide clockwise along the resistor ring 43 via the connecting rod 46, thereby increasing the effective length of the resistor ring 43 connected to the circuit, increasing the overall resistance of the circuit, and decreasing the loop current. The measuring circuit captures the current change, and after amplification and filtering, transmits it to the controller inside the lamp body 1. The controller determines the situation of increased elevation angle of the lamp body 1 based on the signal of decreased current.

[0032] like Figure 2 and Figure 4 As shown, in this embodiment, the blower mechanism 5 includes a blower duct 51 fixedly mounted on the inner wall of the mounting bracket 2. An axial flow fan 52 is fixedly mounted inside the blower duct 51. A dustproof net 53 is fixedly mounted at the opening of the blower duct 51. The dustproof net 53 can reduce the probability of external dust entering the blower duct 51. A hollow air blowing plate 54 is fixedly mounted on the back of the lamp body 1 and on one side of the multiple heat dissipation fins 3. A flexible air guide tube 55 is fixedly mounted between the cylinder wall of the blower duct 51 and the side wall of the hollow air blowing plate 54. Air blowing holes 56 are opened on the side wall of the hollow air blowing plate 54 at the positions corresponding to the multiple heat dissipation fins 3. The flexible air guide tube 55 can be adapted to the tilt angle rotation of the lamp body 1 and will not be damaged by pulling the tube when the angle is adjusted.

[0033] In actual use, in this embodiment, the axial fan 52 is activated, drawing outside air into the air duct 51. The air is then transported to the hollow air blower plate 54 via the flexible air guide duct 55. Finally, the air is blown laterally onto each heat dissipation fin 3 through multiple air holes 56 arranged on the hollow air blower plate 54. The air can penetrate the air duct between adjacent heat dissipation fins 3 and carry away hot air. Lateral airflow allows the air to fully adhere to the sidewalls of the heat dissipation fins 3, resulting in more thorough heat exchange. Simultaneously, the flowing air can follow the inclined grooves of the heat dissipation fins 3. The trough blows dust and moisture outwards, reducing the risk of dust and water accumulation in the air duct. The overall air duct layout does not change the original structure of the heat dissipation fins 3, and is adapted to different angles of the lamp body 1. Since the air duct 51 is far from the heat dissipation fins 3, and the air inlet of the air duct 51 is far from the position of the heat dissipation fins 3, there will be no upward surge of heat entering the air duct 51. Moreover, as the elevation angle of the lamp body 1 gradually increases, the operating power of the axial fan 52 also increases, which can match the heat dissipation attenuation problem caused by the increase in elevation angle.

[0034] like Figures 1-2 and Figures 4-5As shown, in this embodiment, the airflow adjustment mechanism 6 includes an electric push rod 61 fixedly mounted on the side wall of the hollow air blowing plate 54. An adjustment plate 62 is fixedly mounted on the moving end of the electric push rod 61. Multiple evenly distributed adjustment heads 63 are fixedly mounted on the side of the adjustment plate 62. Each adjustment head 63 extends into the interior of a corresponding air blowing hole 56. The adjustment head 63 has a frustum-shaped structure. The large-diameter end of the adjustment head 63 is fixedly connected to the side of the adjustment plate 62, and the small-diameter end of the adjustment head 63 is located inside the air blowing hole 56. The inner wall of the air blowing hole 56 matches the side wall of the adjustment head 63. The lengths of the multiple adjustment heads 63 inside the corresponding air blowing hole 56 increase sequentially from top to bottom. The deeper the adjustment head 63 extends into the air blowing hole 56, the smaller the ventilation gap and the lower the airflow volume; conversely, the shallower the extension, the greater the airflow volume. This design causes the opening of the air blowing hole 56 to gradually decrease from top to bottom, matching the heat dissipation requirements of the tilted heat dissipation fins 3. During this process, the lamp body 1 moves along... Figure 1 When the direction shown is raised clockwise to form an elevation angle, the air volume adjustment mechanism 6 can be matched with the adjustment characteristic of gradually expanding the orifice as the angle increases.

[0035] In actual use, in this embodiment, as the elevation angle of the lamp body 1 gradually increases, the operating power of the axial fan 52 increases synchronously. Simultaneously, the retraction stroke of the electric push rod 61 increases, and the moving end of the electric push rod 61 is linked to the adjustment plate 62 and multiple adjustment heads 63, shortening the depth of each adjustment head 63 inserted into the corresponding air vent 56. This expands the effective ventilation cross-sectional area of ​​the air vent 56, resulting in a larger increase in the opening of the air vent 56 corresponding to the upper heat dissipation fins 3, and a smaller increase in the opening of the air vent 56 corresponding to the lower heat dissipation fins 3, achieving different... The position of the air vents 56 is adjusted to increase the airflow from top to bottom of the heat dissipation fins 3 after tilting, improve the rationality of the gas distribution into the heat dissipation fins 3, reduce the heat dissipation difference between the upper and lower heat dissipation fins 3, and avoid excessive airflow at the bottom. When the elevation angle of the lamp body 1 gradually decreases, the lamp body 1 rotates in the opposite direction, reducing the operating power of the axial fan 52. The electric push rod 61 extends forward, reducing the ventilation cross section of each air vent 56, reducing the overall airflow, avoiding excessive airflow in small angle conditions, and saving energy.

[0036] like Figure 2 and Figure 6 As shown, further, in this embodiment, multiple uniformly distributed baffles 9 are fixedly provided on both sides of multiple heat dissipation fins 3, and the end face of the baffles 9 is a semi-circular structure. A diversion rib 10 is fixedly provided on one end of multiple heat dissipation fins 3 facing the corresponding air blowing hole 56, and the end face of the diversion rib 10 is a triangular structure. The baffles rib 9 and the diversion rib 10 are made of the same material as the heat dissipation fins 3, which can increase the contact area between the heat dissipation fins 3 and the gas, and improve the heat dissipation efficiency to a certain extent. Gas flows over the surface of the baffles rib 9 and the diversion rib 10, so dust will not accumulate on the surface.

[0037] In actual use, in this embodiment, after the gas is sent out laterally towards the heat dissipation fins 3 through each blow hole 56, it first contacts the diversion rib 10. The tip of the diversion rib 10 diverts the gas to both sides and then guides it into the air duct formed by adjacent heat dissipation fins 3. The gas continues to travel and touches the turbulence rib 9, which disrupts the gas flow and forms turbulence, breaking the smooth laminar flow and making the hot and cold air fully mixed, further improving the heat exchange efficiency. At the same time, the lateral air supply allows the gas to completely cross the air duct, avoiding the problem of gas going straight in and out or only sweeping a local area on the surface of the heat dissipation fins 3, thus achieving the function of full contact heat exchange. The diversion rib 10 diverts the gas to both sides to prevent the gas from clustering and running around, ensuring that each air duct can obtain stable gas.

[0038] The operation process of this embodiment is as follows: the construction personnel first install the mounting frame 2 on the building wall, steel structure and other commonly used construction carriers, complete the overall positioning of the lamp body 1, and connect the power supply of the lamp body 1 after the wiring is completed.

[0039] Then, using a wrench, loosen the locking nuts 8 on both sides of the rotating shaft 7, and manually lift and rotate the lamp body 1. The rotating shaft 7 allows the lamp body 1 to rotate relative to the mounting bracket 2. (Refer to...) Figure 1 The elevation angle can be adjusted to change the direction of light projection and adapt to the lighting coverage needs of different construction areas.

[0040] During the adjustment of the lamp body 1 elevation angle, the end of the rotating shaft 7 on one side is synchronously linked to the angle detection mechanism 4. The mechanical action of the lamp body 1 rotation is converted into a constantly changing electrical signal in real time. The signal is transmitted to the controller inside the lamp body 1. The controller starts the blower mechanism 5 and the air volume adjustment mechanism 6 to run synchronously according to the real-time received electrical signal.

[0041] The greater the upward angle of the lamp body 1, the more the controller actively increases the working power of the blower mechanism 5, thereby increasing the overall total air volume. Simultaneously, the airflow regulation mechanism 6 adjusts the opening of each blower hole 56, redistributing the gas flow to each heat dissipation fin 3. As the lamp body 1's angle increases, hot air rises, obstructing the upper heat dissipation fins 3 due to the upward trend of the gas, thus hindering natural convection and significantly reducing heat dissipation efficiency. Meanwhile, the lower heat dissipation fins 3 have unobstructed ventilation paths and sufficient heat dissipation reserves. The airflow regulation mechanism 6 can separately control the upper and lower blower holes 56, achieving effective heat dissipation. The fins 3 are divided into zones for independent air supply, with more gas supplied to the upper heat dissipation fins 3 where heat exchange is weak, and the lower heat dissipation fins 3 are matched with an appropriate air volume. This layered air control mode can significantly reduce the working temperature difference between the upper and lower heat dissipation fins 3, avoid local long-term high temperature heat accumulation, and prevent the blower mechanism 5 from always maintaining full power operation. It can operate at low power under normal small elevation angle conditions, effectively reducing equipment operating noise and overall power consumption. At the same time, it avoids the problem of high wind pressure forcing construction site dust and rainwater moisture into the air duct formed by the heat dissipation fins 3, making it suitable for the complex use environment of construction sites with high dust and long-term day and night lighting.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lighting device for architectural engineering, comprising a lamp body (1) and a mounting bracket (2), wherein the lamp body (1) is rotatably disposed inside the mounting bracket (2), and a plurality of evenly distributed heat dissipation fins (3) are fixedly provided on the back of the lamp body (1), characterized in that, Also includes: An angle detection mechanism (4) is fixedly installed on the side wall of the mounting bracket (2), and the angle detection mechanism (4) is linked with the rotating part on one side of the lamp body (1); The blower mechanism (5) is set on the inner wall of the mounting bracket (2), and the blower end of the blower mechanism (5) extends to one side of multiple heat dissipation fins (3). The blowing intensity of the blower mechanism (5) is proportional to the elevation angle detected by the angle detection mechanism (4). The air volume adjustment mechanism (6) is located inside the blower mechanism (5), and the adjustment amount of the air volume adjustment mechanism (6) is proportional to the elevation angle detected by the angle detection mechanism (4). The angle detection mechanism (4), the blower mechanism (5) and the air volume adjustment mechanism (6) are all electrically connected to the controller inside the lamp body (1).

2. The architectural lighting equipment according to claim 1, characterized in that, The lamp body (1) is fixed with rotating shafts (7) on both sides. The mounting bracket (2) is rotatably connected to the shaft walls of the two rotating shafts (7) on both sides respectively. The shaft walls of the two rotating shafts (7) are threaded at their ends, and the shaft walls of the two rotating shafts (7) are threaded with nuts (8) that fix the lamp body (1) and the mounting bracket (2).

3. The architectural lighting equipment according to claim 2, characterized in that, The angle detection mechanism (4) includes a connecting block (41) fixedly mounted on the side wall of the mounting frame (2). A hollow disk (42) is fixedly mounted on the side wall of the connecting block (41). A resistor ring (43) is provided inside the hollow disk (42). A fixing seat (44) is fixedly connected to the bottom of the hollow disk (42) at the bottom of the resistor ring (43). A conductive block (45) is slidably mounted on the top of the resistor ring (43). One end of the rotating shaft (7) extends into the interior of the hollow disk (42) and is fixedly mounted with a connecting rod (46). The end of the connecting rod (46) away from the rotating shaft (7) is fixedly connected to the side wall of the conductive block (45).

4. A building lighting device according to claim 1, characterized in that, The blower mechanism (5) includes a blower duct (51) fixedly installed on the inner wall of the mounting bracket (2). An axial fan (52) is fixedly installed inside the blower duct (51). A dustproof net (53) is fixedly installed at the opening of the blower duct (51). A hollow blower plate (54) is fixedly installed on the back of the lamp body (1) and on one side of multiple heat dissipation fins (3). A soft air guide pipe (55) is fixedly installed between the wall of the blower duct (51) and the side wall of the hollow blower plate (54). A blower hole (56) is opened on the side wall of the hollow blower plate (54) at a position corresponding to the position of multiple heat dissipation fins (3).

5. A building lighting device according to claim 4, characterized in that, The air volume adjustment mechanism (6) includes an electric push rod (61) fixedly installed on the side wall of the hollow blower plate (54). The moving end of the electric push rod (61) is fixedly provided with an adjustment plate (62). The side of the adjustment plate (62) is fixedly provided with a plurality of evenly distributed adjustment heads (63). The plurality of adjustment heads (63) extend into the interior of the corresponding blower hole (56), and the length of the plurality of adjustment heads (63) inside the corresponding blower hole (56) increases sequentially from top to bottom.

6. A building lighting device according to claim 5, characterized in that, The adjusting head (63) has a frustum-shaped structure. The large diameter end of the adjusting head (63) is fixedly connected to the side of the adjusting plate (62), and the small diameter end of the adjusting head (63) is located inside the air blowing hole (56). The inner wall of the air blowing hole (56) matches the side wall of the adjusting head (63).

7. A building lighting device according to claim 1, characterized in that, Multiple uniformly distributed baffles (9) are fixed on both sides of the multiple heat dissipation fins (3), and the end face of the baffles (9) is a semi-circular structure. A diversion rib (10) is fixed on one end of the multiple heat dissipation fins (3) facing the corresponding air blowing hole (56), and the end face of the diversion rib (10) is a triangular structure.

8. A building lighting device according to claim 1, characterized in that, The mounting bracket (2) is a U-shaped stainless steel frame, and the top of the mounting bracket (2) has a pre-drilled mounting hole.

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