A multi-lamp easy-to-maintain LED street lamp

Abstract

The present application discloses a multi-lamp-holder easy-to-maintain LED street lamp, comprising a lamp pole and a plurality of lighting units, wherein the lamp pole comprises a first lamp pole and a second lamp pole connecting unit; the lamp pole has a plurality of slide grooves, each of which comprises two sections, namely a first slide groove located at the first lamp pole and a second slide groove located at the second lamp pole, each slide groove corresponds to one of the lighting units so that each lighting unit can slide in the corresponding slide groove; the top of the lamp pole is fixedly connected to a top plate through a plurality of top vertical rods, an electric winding device is installed at the top plate, and all lighting units are connected to a lifting unit, and the electric winding device can drive the lifting unit to rise and fall. The LED street lamp of the present application has a plurality of lamp holders, and the plurality of lamp holders have independent functions, energy storage, and lighting, and the plurality of LED lamp holders can be raised and lowered for easy maintenance.

Description

Technical Field

[0001] The present application relates to the field of street lamps, and in particular to a multi-lamp holder easy-to-maintain LED street lamp. Background Art

[0002] LED street lights are becoming more and more the mainstream of lighting due to their low energy consumption and high brightness. Most street lights currently use LED as the lighting source, and LED street lights have a wide range of application scenarios, including landscape lights for community parks, general lighting street lights for road lighting, and high pole lights for squares or important intersections. Such high pole lights generally have multiple lighting lamp heads and a good height. Since the LED lamp heads have multiple heads, the possibility of maintenance is increased, and the high height increases the difficulty of maintenance. Therefore, some of these high pole lights use an installation method in which the lamp head can be raised and lowered as a whole, so that the lamp head can be lowered as a whole during maintenance. However, due to the large lateral width of this overall lamp head, the center of gravity is not stable enough when it is lowered, and the wide width makes it easy to interfere with other surrounding objects when it is lowered, which still brings certain inconveniences to maintenance work. Summary of the invention

[0003] Purpose of the invention: This application aims to overcome the defects of the prior art and provide a multi-lamp-holder easy-to-maintain LED street lamp.

[0004] Technical solution: A multi-lamp easy-to-maintain LED street lamp, comprising a lamp pole and a plurality of lighting units, the lamp pole comprising a first lamp pole, a second lamp pole and a connecting unit connected between the first lamp pole and the second lamp pole, the connecting unit comprising a connecting column and a connecting vertical plate, the bottom end of the connecting column is fixed with a first flange fixedly connected to the first lamp pole, and the top end is fixed with a second flange fixedly connected to the second lamp pole, the bottom end of the connecting vertical plate is fixed with a first fixing block fixedly connected to the first lamp pole, and the top end is fixed with a second fixing block fixedly connected to the second lamp pole; the lamp pole is provided with a plurality of slide grooves, each slide groove comprises two sections, namely a first slide groove located at the first lamp pole and a second slide groove located at the second lamp pole, each slide groove corresponds to one of the lighting units so that each lighting unit can slide in the corresponding slide groove; the top end of the lamp pole is fixedly connected to a top plate through a plurality of top vertical rods, an electric winding device is installed on the top plate, all lighting units are connected to the lifting unit, and the electric winding device can drive the lifting unit to rise and fall.

[0005] Furthermore, each electric winding device is fixed to the top plate through a mounting seat.

[0006] Furthermore, the electric winding device has two, the cross-sections of the first lamp pole and the second lamp pole are both regular hexagons, the lifting unit is a regular hexagonal frame, and the lighting units have 6; the lighting unit includes a vertical slider capable of cooperating with a slide slot, a lifting plate fixedly connected to the vertical slider, a rotating plate hinged to the top of the lifting plate, and an LED lamp head fixedly connected to the rotating plate, the top of the lifting plate is fixedly connected to a lifting rod, the top of the lifting rod is fixedly connected to a connecting block fixedly connected to the lifting unit, the connecting block has a first fixing ring, the two electric winding devices correspond one to one to two of the lighting units, the electric winding device is wound with a pull rope, and the end of the pull rope has a hook that cooperates with the first fixing ring; the top of the second lamp pole has a top accommodating groove, and there is a groove between the second lamp pole and the top plate It also has a limiting abutment ring fixedly connected to all the top vertical rods, the end of the rotating plate is also fixedly connected to two arc-shaped abutment rods, the ends of the two arc-shaped abutment rods are connected between the ends of the two arc-shaped abutment rods, and an elastic block is also fixed at the lifting plate; the LED street lamp can be in a lighting state and a maintenance state, in the maintenance state, the lifting unit is at a first height, the bottom ends of the vertical sliding blocks of all the lighting units abut against the bottom ends of the corresponding first slide grooves, and the LED lamp head of each lighting unit abuts against the elastic block; in the lighting state, when the lifting unit is at a second height, the two arc-shaped abutment rods of all the lighting units abut against the limiting abutment ring, the limiting rods of all the lighting units are located in the top accommodating groove, and the angle between the rotating plate and the lifting plate is greater than or equal to 90 degrees; the second height is greater than the first height.

[0007] Furthermore, in the lighting state, the angle between the rotating plate and the lifting plate is greater than or equal to 100 degrees.

[0008] Furthermore, the horizontal cross-section of the vertical sliding block is in the shape of an I.

[0009] Furthermore, the bottom end of the first chute is closed, and the top end of the second chute is closed.

[0010] Furthermore, in the lighting state, the top end of each vertical sliding block abuts against the top end of the corresponding second sliding groove.

[0011] Furthermore, the connecting block has a recess into which the lifting unit is inserted, and the connecting block is fixedly connected to the lifting unit; the inner and outer sides of the bottom end of the limiting abutment ring both have arc chamfers, and the limiting abutment ring is passed through by all the top vertical rods and fixedly connected to all the top vertical rods.

[0012] Furthermore, the side wall of the second lamp pole has a plurality of leakage holes connected with the top receiving groove.

[0013] This prevents liquid from accumulating in the top receiving tank.

[0014] Furthermore, a regular hexagonal fixing frame is fixed at the first lamp pole, and the fixing frame has six groups of limit units, and the six groups of limit units correspond to the six lighting units one by one, and each group of limit units includes two fixed protrusions, and the fixed protrusions have a first limit through hole. The vertical slider has a second limit through hole, and the first limit through hole and the second limit through hole are both cylindrical holes with equal diameters. When the lifting unit is at the first height, all the vertical sliders are located between the two fixed protrusions of the corresponding limit unit, and the axes of the second limit through hole of the vertical slider and the two first limit through holes of the corresponding limit unit are collinear.

[0015] Furthermore, the connecting column is cylindrical, and the side wall of the connecting column has a plurality of vertical convex ribs distributed in an annular manner with equal spacing. The connecting column is surrounded by a lifting ring, and the lifting ring has a plurality of limiting grooves distributed in an annular manner with equal spacing and cooperating with the limiting convex rib. The lifting ring is an annular column, and the top of the lifting ring has six second fixing rings distributed in an annular manner with equal spacing. The outer side wall of the lifting ring has six mounting grooves, and the six mounting grooves correspond to the six lighting units one by one. The mounting grooves have vertical slide rails, and an L-shaped plate is installed in each mounting groove. The L-shaped plate includes a vertical slide plate and a horizontal limiting plate. The vertical The slide plate has a vertical slide groove that cooperates with the vertical slide rail, a first tension spring is connected between the vertical slide plate and the top of the mounting groove, and a plurality of second tension springs are also connected between the lifting ring and the first flange; when the lifting ring is at a first height, for any lighting unit, with a limit pin inserted between its vertical slide block and the limit unit, by rotating the LED lamp head upward, the lighting unit can be placed in a first state and a second state, in which the limit rod abuts against the upper surface of the horizontal limit plate and forces the first tension spring to extend; in the second state, the limit rod abuts against the lower surface of the horizontal limit plate, and the first tension spring is not extended.

[0016] Furthermore, the connecting block is provided with a pulley groove, in which a fixed pulley is installed, and when the lifting unit is at a first height, the hook can be removed from the first fixing ring, hooked at the second fixing ring and allow the pull rope to pass through the fixed pulley corresponding to the first fixing ring; the lifting ring can be in an initial state and a raised state, in the initial state, any second fixing ring is not connected to the hook, all the second tension springs are in an unstretched state, and the lifting ring is at a third height; in the raised state, two of the second fixing rings are connected to the hook, all the second tension springs are in an extended state, the lifting ring is at a fourth height, and when the LED lamp head of any lighting unit rotates, the limit rod of the lighting unit will not touch the L-shaped plate; the fourth height is greater than the third height.

[0017] Furthermore, the position-limiting abutting ring has six first avoidance grooves into which the lifting rods can be inserted.

[0018] Furthermore, the top plate is provided with six second avoidance grooves into which the connecting blocks can be inserted.

[0019] Furthermore, the hook portion has an opening through which the first fixing ring and the second fixing ring can enter and exit, and the hook portion also has an elastic reset shielding portion capable of closing the opening.

[0020] Furthermore, a first solar cell panel is fixedly mounted on the LED lamp head, a first storage battery is fixedly mounted on the rotating plate, and a plurality of LED light-emitting modules are provided on the LED lamp head; and both the first fixing ring and the second fixing ring are semicircular rings.

[0021] Furthermore, an electric telescopic rod is installed on the top plate, and a lifting disc is installed on the movable end of the electric telescopic rod. Six L-shaped locking blocks are connected in a ring shape with equal intervals on the lifting disc. The six locking blocks correspond to the six lighting units one by one. In the lighting state, each locking block abuts against the limiting rod of the corresponding lighting unit.

[0022] Furthermore, a control box, a second solar panel and a second battery are installed on the top plate, a controller and a wireless communication unit are installed in the control box, a control panel is installed on the side wall of the first lamp pole, a touch screen and a face recognition unit are installed on the control panel, the second battery supplies power to the electric winding device, the controller, the wireless communication unit, the electric telescopic rod and the control panel, and the electricity generated by the second solar panel is stored in the second battery.

[0023] Furthermore, the connecting vertical plate includes two vertical plate bodies, the two vertical plate bodies are integrally formed and the angle between the two is 120 degrees.

[0024] Furthermore, when there is no external force, the first tension spring is in the shortest state.

[0025] Furthermore, when there is no external force, the second tension spring is in the shortest state.

[0026] Furthermore, when the lifting unit is at the first height, all the vertical sliders are located between the two fixed protrusions of the corresponding limiting unit, and the axes of the second limiting through hole of the vertical slider and the two first limiting through holes of the corresponding limiting unit are colinear, so that the limiting pin can be inserted between the three.

[0027] Furthermore, the rotating plate and the LED lamp head are detachable structures.

[0028] Specifically, the rotating plate and the LED lamp holder are fixedly connected by bolts and nuts.

[0029] Thereby, the LED lamp holder can be completely removed and replaced.

[0030] Beneficial effect: Compared with general high pole lamps, the multi-lamp head LED street lamp of the present application has multiple liftable lamp heads, which is more convenient and easy to maintain. During maintenance, multiple LED lamp heads can be lifted and lowered synchronously, and when descending, the LED lamp heads can be set vertically to descend, thereby reducing the horizontal space occupied and avoiding interference with surrounding objects.

[0031] After descending to the lowest height, the LED lamp head can be folded up to support maintenance, which is very convenient;

[0032] LED lamp heads can use solar power generation to truly realize the independent operation of each LED lamp head, and when the LED lamp head is damaged, it can be replaced as a whole, making on-site maintenance easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of street lights in lighting status;

[0034] Figure 1A This is an enlarged view of area A;

[0035] Figure 1B This is an enlarged view of area B;

[0036] Figure 2 This is a schematic diagram of the locking block unlocking the limit rod;

[0037] Figure 3 This is a schematic diagram of each LED lamp head rotating downward after the lifting unit is slightly lowered;

[0038] Figure 4 It is a schematic diagram of each LED lamp head being in a vertical state when descending;

[0039] Figure 5 This is a schematic diagram of the maintenance status;

[0040] Figure 5A This is an enlarged view of area C;

[0041] Figure 5B This is an enlarged view of area D;

[0042] Figure 6 A schematic diagram of a lighting unit in a first state;

[0043] Figure 7 is a schematic diagram of a lighting unit in a second state;

[0044] Figure 8 A schematic diagram showing that all lighting units are in a second state;

[0045] Fig. 9 It is a schematic diagram of the lifting ring in a raised state;

[0046] Fig.10 For Fig. 9 Diagram of restoring to maintenance state. DETAILED DESCRIPTION

[0047] Figure numerals: 1.1 first lamp post; 1.1.1 first slide groove; 1.1.2 fixing frame; 1.1.3 fixing protrusion; 1.1.4 first limit through hole; 1.2 second lamp post; 1.2.1 second slide groove; 1.2.2 leakage hole; 1.2.3 top receiving groove; 1.3 connecting vertical plate; 1.4 connecting column; 1.4.1 vertical rib; 1.5.1 top vertical rod; 1.5.2 limit abutment ring; 1.5.3 first avoidance groove; 1.5.4 top plate; 1.5.5 second avoidance groove; 1.5.6 mounting seat; 1.5.7 electric winding device; 1.5.8 electric telescopic rod; 1.5.9 lifting disc; 1.5.10 locking block;

[0048] 2 lighting unit; 2.1 vertical slider; 2.2 lifting plate; 2.2.1 lifting rod; 2.2.2 connecting block; 2.2.3 first fixing ring; 2.2.4 fixed pulley; 2.2.5 elastic block; 2.3 rotating plate; 2.4 arc rod; 2.4.1 limit rod; 2.5 LED lamp head; 2.5.1 LED light-emitting module; 2.5.2 first storage battery; 2.5.3 first solar cell panel;

[0049] 3 lifting unit;

[0050] 4 pull rope;

[0051] 5.1 lifting ring; 5.2 second fixing ring; 5.3 mounting groove; 5.4 vertical slide rail; 5.5 first tension spring; 5.6 L-shaped plate; 5.7 second tension spring.

[0052] The following is a specific description in conjunction with the accompanying drawings: A multi-lamp easy-to-maintain LED street lamp includes a lamp pole and a plurality of lighting units 2, wherein the lamp pole includes a first lamp pole 1.1, a second lamp pole 1.2, and a connecting unit connected between the first lamp pole 1.1 and the second lamp pole 1.2, wherein the connecting unit includes a connecting column 1.4 and a connecting vertical plate 1.3, wherein the bottom end of the connecting column 1.4 is fixed with a first flange fixedly connected to the first lamp pole 1.1, and the top end is fixed with a second flange fixedly connected to the second lamp pole 1.2, the bottom end of the connecting vertical plate 1.3 is fixed with a first fixing block fixedly connected to the first lamp pole 1.1, and the top end is fixed with a second fixing block fixedly connected to the second lamp pole 1.2. 2 fixedly connected to the second fixed block; the lamp pole is provided with a plurality of slide grooves, each slide groove includes two sections, namely a first slide groove 1.1.1 located at the first lamp pole 1.1 and a second slide groove 1.2.1 located at the second lamp pole 1.2, each slide groove corresponds to one of the lighting units so that each lighting unit can slide in the corresponding slide groove; the top of the lamp pole is fixedly connected to a top plate 1.5.4 through a plurality of top vertical rods 1.5.1, an electric winding device 1.5.7 is installed at the top plate 1.5.4, all the lighting units 2 are connected to the lifting unit 3, and the electric winding device 1.5.7 can drive the lifting unit 3 to rise and fall.

[0053] The electric winding device 1.5.7 has two, the cross-sections of the first lamp pole 1.1 and the second lamp pole 1.2 are both regular hexagons, the lifting unit 3 is a regular hexagonal frame, and the lighting unit 2 has 6; the lighting unit 2 includes a vertical slider 2.1 that can cooperate with the slide groove, a lifting plate 2.2 fixedly connected to the vertical slider 2.1, a rotating plate 2.3 hinged to the top of the lifting plate 2.2, and an LED lamp head 2.5 fixedly connected to the rotating plate 2.3, the top of the lifting plate 2.2 is fixedly connected to a lifting rod 2.2.1, and the lifting rod The top of the second lamp pole 1.2 is fixedly connected to a connecting block 2.2.2 fixedly connected to the lifting unit 3, and the connecting block 2.2.2 has a first fixing ring 2.2.3. Two electric winding devices 1.5.7 correspond to two of the lighting units 2 one by one. The electric winding device 1.5.7 is wound with a pull rope 4, and the end of the pull rope 4 has a hook portion (the hook portion is not drawn) that cooperates with the first fixing ring 2.2.3; the top of the second lamp pole 1.2 has a top receiving groove, and there is also a connecting groove between the second lamp pole 1.2 and the top plate 1.5.4 that is connected to all the top vertical The rods 1.5.1 are fixedly connected to the limit abutment ring 1.5.2, the end of the rotating plate 2.3 is also fixedly connected to two arc-shaped abutment rods 2.4, and the ends of the two arc-shaped abutment rods 2.4 are connected to the limit rod 2.4.1, and the lifting plate 2.2 is also fixed with an elastic block 2.2.5; the LED street lamp can be in the lighting state and the maintenance state. In the maintenance state, the lifting unit 3 is at the first height, and the bottom ends of the vertical sliders 2.1 of all the lighting units 2 abut against the bottom ends of the corresponding first slide grooves 1.1.1, and the L of each lighting unit 2 The ED lamp head 2.5 abuts against the elastic block 2.2.5 (the elastic block is used to provide buffering to avoid heavier collisions when the LED lamp head rotates downward and approaches the vertical slider); in the lighting state, when the lifting unit 3 is at the second height, the two arc-shaped abutment rods 2.4 of all lighting units 2 abut against the limiting abutment ring 1.5.2, and the limiting rods 2.4.1 of all lighting units 2 are located in the top accommodating groove, and the angle between the rotating plate 2.3 and the lifting plate 2.2 is greater than or equal to 90 degrees; the second height is greater than the first height.

[0054] The connection block 2.2.2 has a notch into which the lifting unit 3 is inserted, and the connection block 2.2.2 is fixedly connected to the lifting unit 3; the inner and outer sides of the bottom end of the limit abutment ring 1.5.2 both have arc chamfers (so that the mutual sliding during abutment is smoother), and the limit abutment ring 1.5.2 is passed through by all the top vertical rods 1.5.1 and is fixedly connected to all the top vertical rods 1.5.1. The side wall of the second lamp pole 1.2 has a plurality of leakage holes 1.2.2 connected to the top receiving groove. A regular hexagonal fixed frame 1.1.2 is fixed at the first lamp pole 1.1, and the fixed frame 1.1.2 has six groups of limit units, and the six groups of limit units correspond to the six lighting units 2 one by one, and each group of limit units includes two fixed protrusions 1.1.3, and the fixed protrusions 1.1.3 have a first limit through hole 1.1.4. The vertical slider 2.1 has a second limit through hole, and the first limit through hole 1.1.4 and the second limit through hole are both cylindrical holes with equal diameters. When the lifting unit 3 is at the first height, all the vertical sliders 2.1 are located between the two fixed protrusions 1.1.3 of the corresponding limit unit, and the axes of the second limit through hole of the vertical slider 2.1 and the two first limit through holes 1.1.4 of the corresponding limit unit are collinear.

[0055] The connecting column 1.4 is cylindrical, and the side wall of the connecting column 1.4 has a plurality of vertical ribs 1.4.1 distributed in an annular manner with equal spacing. The connecting column 1.4 is surrounded by a lifting ring 5.1, and the lifting ring 5.1 has a plurality of limiting grooves distributed in an annular manner with equal spacing and matched with the limiting ribs 1.4.1. The lifting ring 5.1 is an annular column, and the top of the lifting ring 5.1 has six second fixing rings 5.2 distributed in an annular manner with equal spacing. The outer side wall of the lifting ring 5.1 has six mounting grooves 5.3, and the six mounting grooves 5.3 correspond to the six lighting units 2 one by one. The mounting grooves 5.3 have vertical slide rails 5.4, and each mounting groove 5.3 is installed with an L-shaped plate 5.6, and the L-shaped plate 5.6 includes a vertical slide plate and a water A flat limit plate, the vertical slide plate has a vertical slide groove that cooperates with the vertical slide rail, a first tension spring 5.5 is connected between the vertical slide plate and the top of the mounting groove, and a plurality of second tension springs 5.7 are also connected between the lifting ring 5.1 and the first flange; when the lifting ring 5.1 is at a first height, for any lighting unit 2, with a limit pin inserted between its vertical slider 2.1 and the limit unit, by rotating the LED lamp head 2.5 upward, the lighting unit 2 can be placed in a first state and a second state, in which the limit rod 2.4.1 abuts against the upper surface of the horizontal limit plate and forces the first tension spring 5.5 to extend; in the second state, the limit rod 2.4.1 abuts against the lower surface of the horizontal limit plate, and the first tension spring 5.5 is not extended. The connecting block 2.2.2 has a pulley groove, and a fixed pulley 2.2.4 is installed in the pulley groove. When the lifting unit 3 is at the first height, the hook can be removed from the first fixing ring 2.2.3, hooked at the second fixing ring 5.2 and allow the pull rope 4 to pass through the fixed pulley 2.2.4 corresponding to the first fixing ring; the lifting ring 5.1 can be in an initial state and a raised state. In the initial state, any second fixing ring 5.2 is not connected to the hook, all the second tension springs 5.7 are in an unextended state, and the lifting ring 5.1 is at a third height; in the raised state, two second fixing rings 5.2 are connected to the hook, all the second tension springs 5.7 are in an extended state, the lifting ring 5.1 is at a fourth height, and when the LED lamp head 2.5 of any lighting unit 2 rotates, the limit rod 2.4.1 of the lighting unit 2 will not touch the L-shaped plate 5.6; the fourth height is greater than the third height.

[0056] The LED lamp head 2.5 is fixedly mounted with a first solar panel 2.5.3, the rotating plate 2.3 is fixedly mounted with a first storage battery 2.5.2, and the LED lamp head 2.5 has a plurality of LED light-emitting modules 2.5.1; the first fixed ring 2.2.3 and the second fixed ring 5.2 are both semicircular rings. The top plate 1.5.4 is mounted with an electric telescopic rod 1.5.8, the movable end of the electric telescopic rod 1.5.8 is mounted with a lifting disc 1.5.9, and the lifting disc 1.5.9 is connected with six L-shaped locking blocks 1.5.10 in a circular shape with equal intervals, and the six locking blocks 1.5.10 correspond to the six lighting units 2 one by one, and in the lighting state, each locking block 1.5.10 abuts against the limit rod 2.4.1 of the corresponding lighting unit. A control box, a second solar panel and a second battery are installed at 1.5.4 of the top plate (the control box, the second solar panel and the second battery are not shown in the figure), a controller and a wireless communication unit are installed in the control box, a control panel is installed on the side wall of the first lamp pole, a touch screen and a face recognition unit are installed at the control panel, the second battery supplies power to the electric winding device, the controller, the wireless communication unit, the electric telescopic rod and the control panel, and the electricity generated by the second solar panel is stored in the second battery. In other embodiments, the second solar panel and the second battery may not be provided, and the electric winding device, the controller, the wireless communication unit, the electric telescopic rod and the control panel are all powered by the mains. In addition, in other embodiments, more electric winding devices may be provided, and the number may be selected as needed.

[0057] As shown in the figure, when the street lamp of the present application is in the lighting state, the electric winding device is in a locked state, so that the arc rod abuts the limit abutment ring, and the locking block abuts the limit rod, so that the angles of each rotating plate and the lifting plate are fixed, so that the LED lamp head obtains a suitable lighting angle.

[0058] When maintenance is required, first raise the electric telescopic rod to release the locking block from locking the respective limit rods, and then lower the lifting unit. Figure 3 As shown, the lighting unit slowly descends and rotates downward; then the lifting unit continues to descend, the lighting unit slowly rotates to a vertical state, and continues to descend until it descends to Figure 5 The maintenance state shown. The position of the vertical slider is locked by the limit switch. At this time, if any lighting unit needs to be maintained, the LED lamp head of the lighting unit is rotated, such as Figure 6 As shown, the limit rod will abut against the L-shaped plate, causing the first tension spring to lengthen, and the L-shaped plate to drop, until the limit rod passes through the L-shaped plate and abuts against the horizontal limit plate from the lower surface of the horizontal limit plate, so that the horizontal limit plate abuts against the limit rod to support the lighting unit, as shown in FIG. Figure 7Of course, if all lighting units need to be maintained, all LED lamp heads can be rotated so that all lighting units are supported by the lower surface of the horizontal limit plate of the corresponding L-shaped plate, as shown in FIG. Figure 8 shown.

[0059] After the maintenance is completed, the hook can be removed from the first fixed ring, and the pull rope can pass through the fixed pulley (the hook can pass through the pulley groove), and the hook is fixedly connected to the second fixed ring, so that the power of the electric winding device can be used to make the lifting ring rise, such as Fig. 9 As shown in FIG. 1 , during the rising process, the horizontal limit plate will also rise, so that the lighting unit will rotate downward and return to the Fig.10 Next, the electric winding device is used to restore the lifting ring to its initial state, and then the connection between the hook and the second fixing ring is released, and the connection between the hook and the first fixing ring is restored, so that the lifting unit can be raised by the electric winding device. As the lifting process is carried out, after reaching a certain height, the arc-shaped rod of the lighting unit will abut against the arc-shaped limit rod, so that the lighting unit rotates upward, similar to Figure 3 The state shown in the figure continues to rise until the vertical slider abuts against the top of the second slide slot, thereby changing to a state similar to Figure 2 The electric telescopic rod is then lowered so that the locking block abuts against the limit rod to lock, changing to Figure 1 state, thereby continuing to illuminate the area.

[0060] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A multi-lamp easy-to-maintain LED street lamp, characterized in that: The invention comprises a lamp pole and a plurality of lighting units, wherein the lamp pole comprises a first lamp pole, a second lamp pole and a connecting unit connected between the first lamp pole and the second lamp pole, wherein the connecting unit comprises a connecting column and a connecting vertical plate, wherein the bottom end of the connecting column is fixed with a first flange fixedly connected to the first lamp pole, and the top end is fixed with a second flange fixedly connected to the second lamp pole, the bottom end of the connecting vertical plate is fixed with a first fixing block fixedly connected to the first lamp pole, and the top end is fixed with a second fixing block fixedly connected to the second lamp pole; the lamp pole is provided with a plurality of slide grooves, each slide groove comprises two sections, namely a first slide groove located at the first lamp pole and a second slide groove located at the second lamp pole, Each slide slot corresponds to one of the lighting units, so that each lighting unit can slide in the corresponding slide slot; the top of the lamp pole is fixedly connected to a top plate via a plurality of top vertical rods, an electric winding device is installed on the top plate, all lighting units are connected to the lifting unit, and the electric winding device can drive the lifting unit to rise and fall; there are two electric winding devices, the cross-sections of the first lamp pole and the second lamp pole are both regular hexagons, the lifting unit is a regular hexagonal frame, and there are 6 lighting units; the lighting unit includes a vertical slider that can cooperate with the slide slot, a lifting plate fixedly connected to the vertical slider, and a hinged plate at the top of the lifting plate The top of the lifting plate is fixedly connected to a lifting rod, and the top of the lifting rod is fixedly connected to a connecting block fixedly connected to the lifting unit. The connecting block has a first fixing ring. Two electric winding devices correspond to two of the lighting units one by one. A pull rope is wound on the electric winding device, and the end of the pull rope has a hook that cooperates with the first fixing ring. The top of the second lamp pole has a top accommodating groove, and a limiting abutment ring fixedly connected to all the top vertical rods is provided between the second lamp pole and the top plate. The end of the rotating plate is also fixedly connected to two arc-shaped abutment rods. The two arc A limiting rod is connected between the ends of the arc-shaped abutment rod, and an elastic block is also fixed at the lifting plate; the LED street lamp can be in a lighting state and a maintenance state. In the maintenance state, the lifting unit is at a first height, and the bottom ends of the vertical slide blocks of all the lighting units abut against the bottom ends of the corresponding first slide grooves, and the LED lamp head of each lighting unit abuts against the elastic block; in the lighting state, when the lifting unit is at a second height, the two arc-shaped abutment rods of all the lighting units abut against the limiting abutment ring, the limiting rods of all the lighting units are located in the top accommodating groove, and the angle between the rotating plate and the lifting plate is greater than or equal to 90 degrees; the second height is greater than the first height.

2. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: The connecting block has a recess into which the lifting unit is inserted, and the connecting block is fixedly connected to the lifting unit; the inner and outer sides of the bottom end of the limiting abutment ring both have arc chamfers, and the limiting abutment ring is passed through by all the top vertical rods and is fixedly connected to all the top vertical rods.

3. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: The side wall of the second lamp pole is provided with a plurality of leakage holes which are connected with the top receiving groove.

4. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: A regular hexagonal fixing frame is fixed at the first lamp pole, and the fixing frame has six groups of limiting units, which correspond to the six lighting units one by one, and each group of limiting units includes two fixed protrusions, and the fixed protrusions have a first limiting through hole. The vertical slider has a second limiting through hole, and the first limiting through hole and the second limiting through hole are both cylindrical holes with equal diameters. When the lifting unit is at the first height, all the vertical sliders are located between the two fixed protrusions of the corresponding limiting unit, and the axes of the second limiting through hole of the vertical slider and the two first limiting through holes of the corresponding limiting unit are collinear.

5. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: The connecting column is cylindrical, and the side wall of the connecting column has a plurality of vertical convex ribs distributed in an annular manner with equal spacing. The connecting column is surrounded by a lifting ring, and the lifting ring has a plurality of limiting grooves distributed in an annular manner with equal spacing and cooperating with the limiting convex rib. The lifting ring is an annular column, and the top of the lifting ring has six second fixing rings distributed in an annular manner with equal spacing. The outer side wall of the lifting ring has six mounting grooves, and the six mounting grooves correspond to the six lighting units one by one. The mounting grooves have vertical slide rails, and an L-shaped plate is installed in each mounting groove. The L-shaped plate includes a vertical slide plate and a horizontal limiting plate. The vertical slide plate has There is a vertical slide groove that cooperates with the vertical slide rail, a first tension spring is connected between the vertical slide plate and the top of the mounting groove, and multiple second tension springs are also connected between the lifting ring and the first flange; when the lifting ring is at a first height, for any lighting unit, with a limit pin inserted between its vertical slide block and the limit unit, by rotating the LED lamp head upward, the lighting unit can be placed in a first state and a second state, in which the limit rod abuts against the upper surface of the horizontal limit plate and forces the first tension spring to extend; in the second state, the limit rod abuts against the lower surface of the horizontal limit plate, and the first tension spring is not extended.

6. The multi-lamp easy-to-maintain LED street lamp according to claim 5, characterized in that: The connecting block is provided with a pulley groove, in which a fixed pulley is installed, and when the lifting unit is at a first height, the hook can be removed from the first fixing ring, hooked at the second fixing ring and allow the pull rope to pass through the fixed pulley corresponding to the first fixing ring; the lifting ring can be in an initial state and a raised state, in the initial state, any second fixing ring is not connected to the hook, all the second tension springs are in an unstretched state, and the lifting ring is at a third height; in the raised state, two of the second fixing rings are connected to the hook, all the second tension springs are in an extended state, the lifting ring is at a fourth height, and when the LED lamp head of any lighting unit rotates, the limit rod of the lighting unit will not touch the L-shaped plate; the fourth height is greater than the third height.

7. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: A first solar cell panel is fixedly mounted on the LED lamp head, a first storage battery is fixedly mounted on the rotating plate, and a plurality of LED light-emitting modules are provided on the LED lamp head; the first fixing ring and the second fixing ring are both semicircular rings.

8. The multi-lamp easy-to-maintain LED street lamp according to claim 1, characterized in that: An electric telescopic rod is installed on the top plate, and a lifting disc is installed on the movable end of the electric telescopic rod. Six L-shaped locking blocks are connected to the lifting disc in a ring shape with equal intervals. The six locking blocks correspond to the six lighting units one by one. In the lighting state, each locking block abuts against the limiting rod of the corresponding lighting unit.

9. The multi-lamp easy-to-maintain LED street lamp according to claim 8, characterized in that: A control box, a second solar cell panel and a second battery are installed on the top plate, a controller and a wireless communication unit are installed in the control box, a control panel is installed on the side wall of the first lamp pole, a touch screen and a face recognition unit are installed on the control panel, the second battery supplies power to the electric winding device, the controller, the wireless communication unit, the electric telescopic rod and the control panel, and the electricity generated by the second solar cell panel is stored in the second battery.

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