Energy-saving and environment-friendly lighting equipment for construction site
The adjustable lampshade design solves the problems of fixed illumination parameters and large size of industrial and mining lamps on construction sites, realizes flexible lighting equipment adjustment and convenient transportation, and improves the operating efficiency and safety of the construction site.
Patent Information
- Application Number
- CN202510999106.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2025-09-16
AI Technical Summary
The existing lampshade design of industrial and mining lamps used in construction sites has problems such as fixed illumination parameters, insufficient scene adaptability, large structure volume, and poor flexibility in movement and deployment.
The lampshade is designed to be adjustable. The opening size of the cover plate can be adjusted by rotating the external threaded ring in the annular groove. Combined with the mechanical structure of the gear and the adjustment rod, the lampshade can be flexibly adjusted and folded, reducing the volume and facilitating transportation.
The lampshade can be flexibly adjusted to meet the lighting needs of different construction scenes, which improves the portability and ease of use of the equipment and reduces transportation and management costs.
Smart Images
Figure CN120650667A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lampshades, in particular to energy-saving and environmentally friendly lighting equipment for construction sites. Background Art
[0002] On construction sites, lighting equipment is a core auxiliary facility for ensuring operational efficiency and safety. Due to the continuous nature of construction and the tight schedules, nighttime work, low-light conditions (such as rain and haze), and construction in enclosed indoor areas (such as basements and inside walls) are common. This requires the use of lighting equipment to provide stable and sufficient illumination to ensure that construction workers can clearly identify the details of the work surface and avoid operational errors or project quality defects caused by poor visibility. Furthermore, construction sites present complex safety hazards such as scaffolding erection, building material storage, temporary cable laying, and pit edges. Adequate lighting can significantly enhance visibility of these hazards and reduce the likelihood of accidents such as collisions and falls.
[0003] Among the lighting equipment commonly used on construction sites, mining lamps are among the most widely used professional lighting fixtures. As high-intensity lighting devices commonly used in industrial and mining settings, mining lamps' core function is to meet the lighting needs of large work areas through directional spotlighting or floodlighting. Structurally, mining lamps primarily consist of a lamp body (including the light source module, such as LED lamp beads and ballast), a lampshade, and power supply components (such as cables and control switches). The lampshade is the key component that directly affects the lighting effect.
[0004] In the existing technology, the lampshades of industrial and mining lamps used on construction sites mostly adopt an integrated cylindrical cone structure design, and its technical functions are mainly reflected in two aspects: first, the optical focusing function is achieved through the cylindrical cone geometry, and the light is constrained by the side wall of the cone, so that the divergent light emitted by the lamp body is directed to the working area below, effectively reducing the scattering loss of light to the non-working area, thereby improving the light intensity per unit area; second, the inside of the lampshade is usually treated with high-reflectivity materials (such as spraying aluminum reflective coating, pasting mirror reflective film, etc.), and the light emitted sideways and upwards by the lamp body is reflected secondary to the irradiation area through the principle of mirror reflection, further improving the utilization rate of the light source and enhancing the overall lighting effect.
[0005] However, the existing lampshade design of mining lamps still has significant technical defects in practical applications: Fixed illumination parameters and insufficient scene adaptability: Existing lampshades are mostly non-adjustable, fixed profile structures. Their core optical parameters, such as cone angle and aperture size, are fixed upon manufacture. However, construction site operations are highly dynamic. The lighting range (e.g., 5-10 meter radius floodlighting, 1-3 meter radius spotlighting) and intensity requirements vary significantly across different construction phases (e.g., site leveling, structure casting, equipment installation) and different operation types (e.g., large-scale site lighting, detailed local component installation, temporary corridor lighting). When switching lighting effects, the lampshade must be manually disassembled and replaced with the corresponding specifications (e.g., a large-aperture lampshade for wide-range floodlighting, a small-aperture lampshade for high-spotlight requirements). This not only complicates the process but also requires stocking multiple specifications of lampshades, increasing equipment management costs and construction downtime.
[0006] Large structures and limited mobility and deployment flexibility: To ensure effective focusing and structural strength, existing conical lampshades are typically constructed of thicker metal or engineering plastics and require a certain axial length to create an effective focusing path, resulting in a relatively large overall lampshade. Construction sites are highly mobile, and lighting equipment must be frequently moved to different work areas as construction progresses. Large lampshades not only increase space utilization during transportation and make handling more difficult, but also hinder flexible deployment in confined spaces (such as scaffolding gaps, elevator shafts, and interior partitions) due to size limitations, impacting the lighting equipment's actual coverage and ease of use.
[0007] Therefore, in order to address the technical shortcomings of existing industrial and mining lamps used on construction sites in terms of illumination adaptability and portability, an energy-saving and environmentally friendly lighting equipment with flexible adjustment of illumination parameters, compact structure and easy transportation and deployment is developed, which has important engineering application value. Summary of the Invention
[0008] In order to make up for the shortcomings of the existing technology, the present invention proposes an energy-saving and environmentally friendly lighting equipment for construction sites. The present invention drives the external threaded ring to rotate in the annular groove by rotating the lampshade, so that the lampshade composed of multiple cover plates can be folded toward the inside of the annular groove and can also be moved outward, thereby adjusting the opening size of the lampshade to meet different lighting needs. In addition, the present invention can reduce the volume after folding for easy transportation.
[0009] The technical solution adopted by the present invention to solve its technical problems is: the energy-saving and environmentally friendly lighting equipment for construction sites described in the present invention includes a lamp body and a lamp bead on the lower surface of the lamp body; an annular groove is provided on the lower surface of the lamp body and located outside the lamp bead; the arc groove wall of the annular groove away from the center of the lamp body is provided with a thread; the inner wall of the annular groove provided with a thread is threadedly connected to an external threaded ring; the lower surface of the external threaded ring is evenly fixed to a U-shaped block around the center; the middle section of the U-shaped block is rotatably connected to a cover frame sleeve through a first torsion spring; the cover frame sleeve is connected to a cover frame bar; the cover frame bar is fixed to a fan-shaped cover plate; the specifications of the cover plate increase as they move away from the annular groove; multiple cover plates on the circumference of the annular groove are combined to form a lampshade; adjacent cover plates are cross-lapped in sequence; the inner surface of the cover plate is coated with a reflective coating; and a flexible photovoltaic panel is pasted on the outer wall of the cover plate.
[0010] Preferably, a tooth groove is provided on the inner wall of the annular groove near the center of the lamp body; a gear is rotatably connected in the tooth groove; the inner edge of the external threaded ring is provided with teeth that engage with the gear; the length of the gear is consistent with the depth of the annular groove; an adjustment hole is provided through the upper end of the gear; an adjustment rod connected to the gear is movably connected in the adjustment hole.
[0011] Preferably, a first square groove is provided through the center of the gear along the length direction; a second square groove corresponding to the first square groove is provided at the lower end of the tooth groove; the cross-sections of the adjusting rod and the first square groove are both square; the adjusting rod is slidably connected in the first square groove and can be snapped into the second square groove.
[0012] Preferably, the adjustment rod is divided into an upper rod and a lower rod; the lower end of the upper rod and the upper end of the lower rod are rotationally connected through a second torsion spring.
[0013] Preferably, a first rotation groove is provided on the lower surface of the lamp body; the first rotation groove is located outside the annular groove; a first rotating ring is rotatably connected in the first rotation groove; first rib grooves are evenly provided on the lower surface of the first rotating ring; the number of the first rib grooves is consistent with the number of cover frame bars.
[0014] Preferably, the cover plate is a metal sheet, which is hard and elastic; the cover frame bar is rod-shaped; the outer wall of the cover frame sleeve is provided with a rod hole; the rod hole is rotatably connected to the end of the cover frame bar through a third torsion spring.
[0015] Preferably, a first elastic strip is provided on the inner surface of the cover plate near one circumferential edge; and a second elastic strip is provided on the outer surface of the cover plate near the other circumferential edge.
[0016] Preferably, the outer wall of the lamp body is slidingly and sealedly connected to the lamp sleeve; a strip groove is provided on the inner side of the lamp sleeve along the axial direction; the inner wall of the strip groove is slidingly connected to the strip plate along the radial direction of the lamp sleeve; the strip plate is evenly fixed to the clamping block along the length direction toward the side of the lamp body; the outer wall of the lamp body is fixed to the slider that slides with the strip groove; the side of the strip plate away from the lamp body is connected to the bottom of the strip groove by a spring; a shift groove is provided through the strip groove toward the outside; a shift block is slidingly connected in the shift groove; and the shift block is fixed to the strip plate.
[0017] Preferably, the lower surface of the lamp sleeve is fixedly connected to an elastic ring; the elastic ring is in elastic contact with the outer side of the lampshade.
[0018] The beneficial effects of the present invention are as follows: 1. The present invention drives the external threaded ring to rotate in the annular groove by rotating the lampshade, so that the lampshade composed of multiple cover plates can be folded toward the inside of the annular groove and can also be moved outward, thereby adjusting the opening size of the lampshade to meet different lighting needs. In addition, the present invention can reduce the volume after folding to facilitate transportation.
[0019] 2. In the present invention, the gear will drive the meshing teeth to rotate during the rotation of the tooth groove, so that the external threaded ring is driven to rotate, and the external threaded ring will approach or move away from the bottom of the annular groove according to the rotation direction of the gear. The method of driving the external threaded ring to move in the annular groove by the gear is better for protecting the lampshade and avoiding damage to the lampshade compared with the original method of directly moving the lampshade; the lower end of the adjustment rod is stuck in the second square groove to lock the gear and the external threaded ring, so that the size of the lampshade opening can be locked, making the lighting equipment more stable during the lighting process and also making the lighting equipment more stable after the lampshade is folded.
[0020] 3. The adjustment of the lampshade in the present invention is achieved by squeezing the lower end of the lamp cover. Specifically, when the lampshade is at the opening of the annular groove and away from the limit position of the bottom of the annular groove, the lamp cover is unlocked and squeezed. The lampshade is composed of a plurality of cover plates, so that the lampshade is tightened by squeezing the cover plates, and the lampshade is expanded by moving the lamp cover upward. After the movement of the lamp cover is completed, the lamp cover will be locked. This lampshade adjustment method will not affect the reflection area inside the lampshade, and the adjustment is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 is a perspective view of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 A three-dimensional image from another angle; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 It is a three-dimensional diagram of a single cover plate and a lamp body in the present invention; Figure 6 yes Figure 5 Enlarged view of point C in the middle; Figure 7 It is the structural diagram of the rod hole; Figure 8 It is a partial cross-sectional view of the present invention; Figure 9 yes Figure 8 Enlarged view of point D in the middle; Figure 10 It is the changing state diagram of the adjustment rod; Figure 11 It is a schematic diagram of the meshing of the external thread ring and the gear in the present invention.
[0023] In the figure: lamp body 1, annular groove 11, tooth groove 12, adjustment hole 13, second square groove 14, first rotating groove 15, first rotating ring 16, first ridge groove 161, slider 17, lamp bead 2, external threaded ring 3, U-shaped block 31, teeth 32, cover frame sleeve 4, first torsion spring 41, cover frame strip 42, cover plate 43, lampshade 44, rod hole 45, third torsion spring 46, first elastic strip 47, second elastic strip 48, gear 5, first square groove 51, adjustment rod 6, upper rod 61, lower rod 62, second torsion spring 63, lamp cover 7, strip groove 71, strip plate 72, block 73, spring 74, shift groove 75, shift block 76, elastic ring 77. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] like Figures 1 to 11 As shown, the present invention includes the following embodiments: Embodiment 1: An energy-saving and environmentally friendly lighting device for construction sites, comprising a lamp body 1 and a lamp bead 2 on the lower surface of the lamp body 1; an annular groove 11 is provided on the lower surface of the lamp body 1 and located outside the lamp bead 2; the arcuate groove wall of the annular groove 11 away from the center of the lamp body 1 is provided with a thread; the inner wall of the annular groove 11 with a thread is threadedly connected to an external threaded ring 3; the lower surface of the external threaded ring 3 is evenly fixed with a U-shaped block 31 around the center; the middle section of the U-shaped block 31 is rotatably connected to a cover frame sleeve 4 through a first torsion spring 41; the cover frame sleeve 4 is connected to a cover frame bar 42; the cover frame bar 42 is fixed to a fan-shaped cover plate 43; the specifications of the cover plate 43 increase as they move away from the annular groove 11; multiple cover plates 43 on the circumference of the annular groove 11 are combined to form a lampshade 44; adjacent cover plates 43 are cross-lapped in sequence; the inner surface of the cover plate 43 is coated with a reflective coating (not numbered in the figure); the outer wall of the cover plate 43 is pasted with a flexible photovoltaic panel (not numbered in the figure).
[0026] The lampshade 44 is composed of a plurality of cover plates 43. The opening of the lampshade 44 will directly affect the lighting range and focusing effect of the lighting device. When the lighting range needs to be adjusted, the lampshade 44 is rotated to drive the external threaded ring 3. When the lampshade 44 rotates forward, the external threaded ring 3 will move close to the bottom of the annular groove 11. The lampshade 44 is composed of a plurality of cover plates 43 that are cross-connected and combined. Therefore, when the external threaded ring 3 moves toward the bottom of the annular groove 11, the plurality of cover plates 43 will be driven to tighten inward, thereby making the opening of the lampshade 44 smaller. Since the cover frame sleeve 4 is rotatably connected to the middle section of the U-shaped block 31 by the first torsion spring 41, the torsional force of the first torsion spring 41 needs to be overcome during the folding of the plurality of cover plates 43 toward the annular groove 11. When the external threaded ring 3 is close to the extreme position of the bottom of the annular groove 11, the lampshade 44 is folded. The folded lampshade 44 reduces the volume of the lighting device, so During transportation; during the reverse rotation of the lampshade 44, the external threaded ring 3 will move away from the bottom of the annular groove 11, and the multiple cover plates 43 will gradually move out of the annular groove 11, and the first torsion spring 41 will drive the cover frame sleeve 4 to rotate, and the cover frame sleeve 4 will drive the cover frame strip 42 to expand outward, and the cover frame strip 42 will drive the corresponding cover plate 43 to expand, so that the opening of the lampshade 44 becomes larger; when the lighting device receives light during the day, the flexible photovoltaic panel attached to the outer wall of the cover plate 43 can generate electricity, and the generated electricity will be stored in the battery (not shown in the figure) inside the lamp body 1. At night, the electricity in the battery will supply the lamp beads 2 to light up, and the light emitted by the lamp beads 2 will be reflected by the reflective coating on the inner side of the cover plate 43 to achieve the purpose of luminous brightness. The reflection and concentration of the lampshade 44 make the lighting device brighter, and solar power generation realizes energy saving and environmental protection of the lighting device to meet the needs of building construction; The present invention drives the external threaded ring 3 to rotate in the annular groove 11 by rotating the lampshade 44, so that the lampshade 44 composed of multiple cover plates 43 can be folded toward the inside of the annular groove 11 and can also be moved outward, thereby adjusting the opening size of the lampshade 44 to meet different lighting needs. In addition, the present invention can reduce the volume after folding to facilitate transportation.
[0027] Example 2: A tooth groove 12 is provided on the inner wall of the annular groove 11 near the center of the lamp body 1; the gear 5 is rotatably connected in the tooth groove 12; the inner edge of the external threaded ring 3 is provided with teeth 32 that mesh with the gear 5; the length of the gear 5 is consistent with the depth of the annular groove 11; an adjustment hole 13 is provided through the upper end of the gear 5; the adjustment rod 6 connected to the gear 5 is movably connected in the adjustment hole 13.
[0028] In this embodiment, a first square groove 51 is provided through the center of the gear 5 along the length direction; a second square groove 14 corresponding to the first square groove 51 is provided at the lower end of the tooth groove 12; the cross-sections of the adjusting rod 6 and the first square groove 51 are both square; the adjusting rod 6 is slidably connected in the first square groove 51 and can be snapped into the second square groove 14.
[0029] When it is necessary to adjust the position of the external threaded ring 3 in the annular groove 11, the adjusting rod 6 is pulled to slide along the first square groove 51. The specification of the adjusting hole 13 is larger than the cross section of the adjusting rod 6, so it will not affect the movement of the adjusting rod 6. During the upward movement of the adjusting rod 6, the lower end of the adjusting rod 6 will be driven to move out of the second square groove 14 to unlock the adjusting rod 6. After the adjusting rod 6 is unlocked, it can drive the gear 5 to rotate. During the rotation of the gear 5 in the tooth groove 12, the meshing teeth 32 will be driven to rotate. In this way, the external threaded ring 3 is driven to rotate. The external threaded ring 3 will approach or move away from the bottom of the annular groove 11 as the gear 5 rotates. Compared with the original method of directly moving the lampshade 44, the way in which the movable external threaded ring 3 moves in the annular groove 11 better protects the lampshade 44 and avoids damage to the lampshade 44. After completing the position adjustment of the external threaded ring 3, the first square groove 51 is controlled to be aligned with the second square groove 14, and the adjusting rod 6 is controlled to move downward. During the downward movement of the adjusting rod 6, it slides along the first square groove 51, and the lower end of the adjusting rod 6 is stuck in the second square groove 14 to achieve locking of the gear 5 and the external threaded ring 3. In this way, the opening size of the lampshade 44 can be locked, making the lighting equipment more stable during the lighting process, and also making the lighting equipment more stable after the lampshade 44 is folded.
[0030] Embodiment 3: The regulating rod 6 is divided into an upper rod 61 and a lower rod 62 ; the lower end of the upper rod 61 and the upper end of the lower rod 62 are rotatably connected via a second torsion spring 63 .
[0031] When it is necessary to control the rotation of the gear 5, the adjusting rod 6 is first lifted upward, specifically, the upper rod 61 is lifted upward. During the upward movement of the upper rod 61, the lower rod 62 is driven to move upward. During the upward movement of the lower rod 62, the lower end of the lower rod 62 is driven to move out of the second square slot 14, thereby unlocking the gear 5. As the upper rod 61 continues to move upward, until the upper rod 61 is completely removed from the first square slot 51 and the movable hole, the second torsion spring 63 drives the upper rod 61 to flip 90 degrees, and then controls the upper rod 61 to rotate around the lower rod 62. Since the upper rod 61 and the lower rod 62 are at 90 degrees, according to the principle of leverage, it is more labor-saving to drive the lower rod 62 to rotate. During the process, the gear 5 will be driven to rotate, thereby realizing the movable adjustment of the external threaded ring 3; after the adjustment is completed, the upper rod 61 will overcome the second torsion spring 63 and be pulled to the same length direction of the lower rod 62, and then the upper rod 61 will be pressed into the first square groove 51, and the lower rod 62 will be inserted into the second square groove 14 as the upper rod 61 moves downward. The upper rod 61 will also be subjected to the torsion of the second torsion spring 63 in the first square groove 51, so that the position of the upper rod 61 away from the lower rod 62 is pressed against the inner wall of the first square groove 51 under the torsion of the second torsion spring 63, so that the friction between the upper rod 61 and the inner wall of the second square groove 14 is greater and it is not easy to disengage, so that the lower rod 62 is more stable in the second square groove 14.
[0032] Example 4: A first rotation groove 15 is provided on the lower surface of the lamp body 1; the first rotation groove 15 is located outside the annular groove 11; the first rotating ring 16 is rotatably connected in the first rotation groove 15; the first rib grooves 161 are evenly provided on the lower surface of the first rotating ring 16; the number of the first rib grooves 161 is consistent with the number of the cover frame strips 42.
[0033] The cover frame strip 42 will press against the inner edge of the lower surface of the first rotating ring 16 under the torsion of the first torsion spring 41. As the external threaded ring 3 rotates, the external threaded ring 3 will drive all the cover frame strips 42 in the lampshade 44 to rotate around the lamp body 1. The cover frame strip 42 will be stuck in the first ridge groove 161. The first rotating ring 16 will rotate around the center of the lamp body 1 as the cover frame strip 42 rotates. The first rotating ring 16 will rotate with the first rotating groove 15, thereby reducing the wear of the cover frame strip 42. The first ball is connected to the rolling inside the first ridge groove 161 to further reduce the active wear of the cover frame strip 42. The first ridge groove 161 can separate and support all the cover frame strips 42 from each other, thereby improving the strength of the cover frame strip 42.
[0034] Example 5: The cover plate 43 is a metal sheet with hardness and elasticity; the cover frame bar 42 is rod-shaped; the outer wall of the cover frame sleeve 4 is provided with a rod hole 45; the rod hole 45 is rotatably connected to the end of the cover frame bar 42 through a third torsion spring 46.
[0035] In this embodiment, a first elastic strip 47 is provided on the inner surface of the cover plate 43 near one circumferential edge; and a second elastic strip 48 is provided on the outer surface of the cover plate 43 near the other circumferential edge.
[0036] In the process of multiple cover plates 43 being tightened inwardly and expanded outwardly, since two adjacent cover plates 43 are staggered and overlapped with each other, the lampshade 44 is composed of multiple cover plates 43, which will not affect the contraction and expansion of the multiple cover plates 43. The cover plates 43 are connected to the cover frame strips 42, and the cover frame strips 42 are rotatably connected to the rod holes 45 through the third torsion springs 46. In this way, the two adjacent cover plates 43 are stacked more closely to ensure that after the multiple cover plates 43 form the lampshade 44, the inner light source is shielded. Furthermore, A first elastic strip 47 and a second elastic strip 48 are respectively provided on the inner surface and the outer surface of the cover plate 43. The first elastic strip 47 and the second elastic strip 48 can stack the two adjacent cover plates 43 more tightly to improve the sealing effect, so as to achieve the purpose of rainproof and light-shielding; when the lampshade 44 is expanded to the maximum state, the first elastic strip 47 and the second elastic strip 48 will limit the separation of the two adjacent cover plates 43 from each other to ensure that the two adjacent cover plates 43 are always in an overlapping state, which is convenient for the stability of the lampshade 44 when folded or expanded.
[0037] Example 6: The outer wall of the lamp body 1 is slidingly and sealedly connected to the lamp sleeve 7; a strip groove 71 is provided on the inner side of the lamp sleeve 7 along the axial direction; the inner wall of the strip groove 71 is radially slidably connected to the strip plate 72 along the lamp sleeve 7; the strip plate 72 is evenly fixed with a clamping block 73 along the length direction toward the side of the lamp body 1; the outer wall of the lamp body 1 is fixed to the slider 17 that slides with the strip groove 71; the side of the strip plate 72 away from the lamp body 1 is connected to the bottom of the strip groove 71 by a spring 74; a shift groove 75 is provided through the strip groove 71 toward the outside; a shift block 76 is slidably connected in the shift groove 75; the shift block 76 is fixed to the strip plate 72.
[0038] In this embodiment, the lower surface of the lamp cover 7 is fixedly connected to an elastic ring 77 ; the elastic ring 77 is in elastic contact with the outer side of the lampshade 44 .
[0039] The lamp cover 7 that slides axially on the outside of the lamp body 1 has two functions, and the opening size of the lampshade 44 has two different adjustment methods. The first is that the lampshade 44 is adjusted by the external threaded ring 3 moving in the annular groove 11. When the lampshade 44 moves toward the bottom of the annular groove 11, the opening of the lampshade 44 will become smaller, and the process of the lampshade 44 moving away from the bottom of the annular groove 11 will always make the opening of the lampshade 44 larger. See Example 1 for details. In addition, when the lighting equipment needs to be folded, the lampshade 44 is also controlled to enter the annular groove 11 along with the external threaded ring 3. However, for some larger lampshades 44, they are not completely retracted into the annular groove 11. In this way, by toggling the toggle block 76 to slide along the toggle groove 75 and pull the strip plate 72 away from the lamp body 1, the strip plate 72 will overcome the elastic force of the spring 74 in the process of moving away from the lamp body 1. When the locking cam 72 is in the closed position, the latch 7 is locked, and the latch 7 is in the closed position, so that the locking cam 7 can be locked in the closed position, thereby locking the locking cam 7 in the closed position. The second method is to adjust the lampshade 44 by squeezing the lower end of the lamp cover 7. Specifically, when the lampshade 44 is at the notch of the annular groove 11 and away from the limit position of the bottom of the annular groove 11, the lamp cover 7 is unlocked and squeezed. The lampshade 44 is composed of a plurality of cover plates 43, so that the lampshade 44 is tightened by squeezing the cover plates 43, and the lamp cover 7 moves upward to expand the lampshade 44. After the movement of the lamp cover 7 is completed, the lamp cover 7 is locked. This adjustment method of the lampshade 44 does not affect the reflection area inside the lampshade 44, and the adjustment is more convenient and quick, but the volume is larger. The former adjustment method can reduce the volume of the lighting equipment. The two methods have their own advantages and disadvantages, and selective adjustment is made according to specific usage requirements. In this embodiment, an elastic ring 77 is provided on the lower end surface of the lamp cover 7 to reduce contact wear with the lamp shade 44 and improve the shielding and sealing effect between the outer side of the lamp shade 44 and the lamp cover 7.
[0040] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. An energy-saving and environmentally friendly lighting device for use at construction sites, comprising a lamp body and lamp beads on the lower surface of the lamp body; characterized in that: An annular groove is provided on the lower surface of the lamp body and located outside the lamp bead; a thread is provided on the arcuate groove wall of the annular groove away from the center of the lamp body; the inner wall of the annular groove with thread is threadedly connected to an external threaded ring; the lower surface of the external threaded ring is evenly fixed to a U-shaped block around the center; the middle section of the U-shaped block is rotatably connected to the cover frame sleeve through a first torsion spring; the cover frame sleeve is connected to the cover frame bar; the cover frame bar is fixed to a fan-shaped cover plate; the specifications of the cover plate increase as it moves away from the annular groove; multiple cover plates on the circumference of the annular groove are combined to form a lampshade; adjacent cover plates are cross-jointed in sequence; the inner surface of the cover plate is coated with a reflective coating; and a flexible photovoltaic panel is pasted on the outer wall of the cover plate.
2. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 1, characterized in that: The inner wall of the annular groove near the center of the lamp body is provided with a tooth groove; a gear is rotatably connected in the tooth groove; the inner edge of the external threaded ring is provided with teeth that engage with the gear; the length of the gear is consistent with the depth of the annular groove; an adjustment hole is provided through the upper end of the gear; an adjustment rod connected to the gear is movably connected in the adjustment hole.
3. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 2, characterized in that: A first square groove is provided through the center of the gear along the length direction; a second square groove corresponding to the first square groove is provided at the lower end of the tooth groove; the cross-sections of the adjustment rod and the first square groove are both square; the adjustment rod is slidably connected in the first square groove and can be snapped into the second square groove.
4. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 3, characterized in that: The regulating rod is divided into an upper rod and a lower rod; the lower end of the upper rod is rotationally connected with the upper end of the lower rod through a second torsion spring.
5. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 1, characterized in that: A first rotation groove is provided on the lower surface of the lamp body; the first rotation groove is located outside the annular groove; the first rotating ring is rotatably connected in the first rotation groove; first rib grooves are evenly provided on the lower surface of the first rotating ring; the number of the first rib grooves is consistent with the number of the cover frame bars.
6. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 1, characterized in that: The cover plate is a metal sheet with hardness and elasticity; the cover frame bar is rod-shaped; the outer wall of the cover frame sleeve is provided with a rod hole; the rod hole is rotatably connected to the end of the cover frame bar through a third torsion spring.
7. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 6, characterized in that: A first elastic strip is provided on the inner surface of the cover plate near one circumferential edge; a second elastic strip is provided on the outer surface of the cover plate near the other circumferential edge.
8. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 1, characterized in that: The outer wall of the lamp body is slidingly and sealedly connected to the lamp sleeve; a strip groove is provided on the inner side of the lamp sleeve along the axial direction; the inner wall of the strip groove is slidingly connected to the strip plate along the radial direction of the lamp sleeve; the strip plate is evenly fixed to the clamping block along the length direction facing the lamp body; the outer wall of the lamp body is fixed to the slider that slides with the strip groove; the side of the strip plate away from the lamp body is connected to the bottom of the strip groove by a spring; a shift groove is provided through the strip groove toward the outside; a shift block is slidingly connected in the shift groove; and the shift block is fixed to the strip plate.
9. The energy-saving and environmentally friendly lighting equipment for construction sites according to claim 8, characterized in that: The lower surface of the lamp cover is fixedly connected with an elastic ring; the elastic ring is in elastic contact with the outer side of the lampshade.