CN201149185Y - Angle-adjustable LED street lamp - Google Patents

Abstract

The utility model relates to an adjustable angle formula LED street lamp, it is through installing a rotatable fixed connection frame between branch top and lamp holder back middle part, and this fixed connection frame comprises articulated branch mount and lamp holder mount together. Furthermore, the utility model discloses adopt one set of screw rod articulated mounting by positive and negative screw thread matched with on fixed connection frame, the nature pine that produces when preventing normal use takes off. The utility model can adjust the lamp head irradiation angle on the premise of ensuring the reliability of the structural connection of each part, can meet the illumination requirements of various road conditions, does not need to change the structure of the street lamp on the production process aiming at the illumination requirements during production, and simplifies the production steps; more importantly, the supporting rod is connected with the middle part of the back surface of the lamp holder, so that all parts of the lamp holder are stressed uniformly, the sealing ring in the lamp holder is not extruded to deform, water leakage is avoided, and the waterproof performance of the lamp holder can be improved.

Description

Adjustable angle LED street light

technical field

The utility model belongs to the lighting field, in particular to an angle-adjustable LED street lamp.

Background technique

The most widely used street light source generally adopts high-pressure sodium lamp. This light source works at a very high voltage and consumes a lot of power. Today, when safety and energy conservation are emphasized, this kind of street light is no longer applicable, so people It has been technically improved. As the new light source high-power LED technology is becoming more and more mature, the scheme of using high-power LED as the light source for street lamps is gradually becoming common. In the stage where high-pressure sodium lamp street lamps and high-power LED street lamps alternate, most LED street lamps still use the structure model of high-pressure sodium lamps, that is, the original lamp head model is used to design the LED light source, and the original integrated light pole is used to design the LED light source. Support the lamp head to simplify the production process and reduce production costs. Since the light of the LED light source has strong directionality, in order to achieve a better road lighting effect, the general method is to adjust the bending angle of the light pole to change the direction of the light source to meet the road lighting requirements. Therefore, in different road conditions, it is necessary to make different adjustments to the state of the street lamp pole during the production stage, that is to say, for street lamps with different road conditions, the production process also needs to be adjusted, which is not conducive to mass production. Useful for subsequent installers. In addition, current street lamps are generally connected to the light pole through one side of the lamp head. Therefore, after installation, due to its own gravity and air flow, the lamp head will be subject to a large torque, so it must be fixed on the connection between the lamp head and the light pole. To strengthen the reliability of the material structure, the general method is to increase the thickness of the material at the joint on the lamp cap, which will cause waste of materials in the production of the lamp cap; similarly, due to the influence of the torsion on the lamp cap, the force on each part of the lamp cap is extremely unbalanced. Therefore, the waterproof sealing ring inside the lamp cap will be squeezed and deformed, which will cause gaps in the lamp cap and water leakage, reducing the waterproof effect of the lamp cap.

Contents of the invention

In order to overcome some defects of the above-mentioned street lamps, the utility model proposes an angle-adjustable LED street lamp, which can be mass-produced, and the irradiation angle of the lamp head can be adjusted very conveniently during installation to achieve the best lighting effect, and Part of the material can be saved, and the waterproof effect of the lamp head of the street lamp can be improved.

The technical scheme of the utility model to achieve the above effects is as follows: the adjustable angle LED street lamp includes a lamp pole supporting the street lamp, a pole connected to the pole, and a lamp cap fixed on the pole. It is characterized in that the top of the pole It is connected with the middle part of the back of the lamp head through a fixed connecting frame, which includes two parts: a pole fixing frame and a lamp head fixing frame hinged together by a screw; the pole fixing frame has an inner diameter and a pole The outer diameter of the top end matches the sleeve hole, the lamp holder has hook claws, and the lamp holder is provided with a card slot that matches the above hook claws; the two ends of the screw have counterclockwise anti-thread threads, and The two ends of the screw rod are provided with two anti-thread screws arranged in the opposite direction, and a lock nut is respectively arranged on the two anti-thread screws, and the lock nut has a positive thread in a clockwise direction, and the anti-thread screw has Internal thread and external thread, the internal thread matches the anti-thread thread of the above-mentioned screw rod, and its external thread matches the positive thread thread of the above-mentioned lock nut; two A symmetrically arranged connecting foot, the end of the connecting foot has a hinged hole facing it; the section of the lamp holder is H-shaped, with two symmetrical connecting plates on both sides, and a hinged hole facing it at the top of the connecting plate , the bottom end has the hook claws; the back of the lamp cap has a plurality of cooling plates, and the tops of the two cooling plates located in symmetrical positions are respectively provided with a slot extending along the length direction of the cooling plate, and the cross section of the slot is the same as the above The cross-sections of the claws match each other; the claws and the slots are fixed by screws.

After adopting the above-mentioned technical scheme, the utility model can adopt the same production process for mass production of street lamps for various road conditions, which simplifies the production steps; during installation, it is very convenient to adjust the installation of the lamp head according to different road conditions Fixed angle to meet road lighting requirements to produce the best lighting effect. In addition, the pole is connected to the middle part of the back of the lamp cap to support the weight of the lamp cap, so that all parts of the lamp cap are evenly stressed when subjected to gravity. Compared with ordinary street lamps, it is not necessary to increase the thickness of the material structure at the connection between the lamp cap and the pole. Ensure reliability, so that certain materials can be saved; and the force on each part of the lamp cap is balanced, so that the sealing ring installed in the lamp cap will not be squeezed and deformed, so that there will be no leaking gaps inside the lamp cap, and the waterproof effect of the lamp cap will be improved. also greatly improved.

Description of drawings

Fig. 1 is the assembly state schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of a structural decomposition state of the present utility model;

Fig. 3 is a schematic side view of the assembled state of the utility model;

Fig. 4 is a schematic diagram of the decomposed state in Fig. 3 of the utility model;

Fig. 5 is an enlarged view of A in Fig. 3 of the present utility model.

Detailed ways

The utility model is an angle-adjustable LED street lamp, which consists of three parts: a lamp base 1, a pole 2 and a lamp pole. Below with reference to accompanying drawing, the utility model is described in detail.

Lamp holder 1 consists of a light source part, an optical element, a heat dissipation part and a power supply part. The light source part is formed by an array composed of multiple sets of high-power LEDs arranged in a regular manner. The optical element is a secondary optical lens, and each optical lens corresponds to a high-power LED. , the heat dissipation part is located on the back of the lamp cap and is composed of a plurality of heat dissipation plates 11 arranged in parallel, and the power supply part includes a power controller 7 . The pole 2 and the light pole generally adopt an integrated structure, but they can also be fixed by bolt connection, etc., while the connection between the lamp head 1 and the pole 2 is hinged to achieve the purpose of conveniently adjusting the lighting angle. As shown in Figure 1, the top of the pole 2 and the middle part of the back of the lamp cap 1 are hinged through a fixed connecting frame 3. The fixed connecting frame 3 includes a pole fixing frame 4 and a lamp cap fixing frame 5, and the pole fixing frame 4 is fixed to the lamp cap. The frame 5 is hinged together by the screw rod 6 , and the power controller 7 is fixedly installed on the cooling plate 11 and sandwiched between the two legs of the lamp cap fixing frame 5 .

As shown in Fig. 2, Fig. 3 and Fig. 4, there is a sleeve hole 41 on the pole fixing frame 4, the inner diameter of the sleeve hole 41 matches the outer diameter of the top of the pole 2, and the top of the pole 2 is inserted into the sleeve hole 41, on the pole fixing frame 4, be positioned at the top of sleeve hole 41 and be provided with positioning hole 43, also be provided with positioning hole 21 at the corresponding position of pole 2 top and positioning hole 43, be positioned at positioning hole 43 and positioning hole 21 Positioning screws are installed inside, so that the pole 2 and the pole fixing frame 4 will not move relative to each other after installation, so as to enhance the stability of the connection structure; on the pole fixing frame 4, at the symmetrical positions on both sides of the outer wall of the casing hole 41 Two connecting feet 44 are extended, and the ends of the connecting feet 44 have a hinged hole 42 opposite to each other, and the pole fixing frame 4 and the lamp holder fixing frame 5 are connected together through the hinged hole 42 . The cross-section of the lamp holder 5 is H-shaped, with two symmetrical connecting plates 51 on both sides, and a symmetrical hinge hole 52 at the top of the connecting plate 51, which has the same shape as the hinge hole 42 on the pole fixing frame 4 Corresponding to the relative position and size, the screw rod 6 is interspersed between the hinge hole 42 and the hinge hole 52, so that the pole fixing frame 4 and the lamp holder fixing frame 5 are hinged together; there is a pair of opposite hooks at the bottom end of the connecting plate 51 Claw 53. The two ends of the screw rod 6 have counterclockwise anti-thread threads, and there are two anti-thread screws 61 arranged on the back at the two ends of the screw rod 6. The anti-thread screws 61 have internal threads and external threads. The reverse thread is matched, and the external thread is a positive thread in a clockwise direction, and a lock nut 62 is installed on the external thread, and the lock nut 62 has a positive thread in a clockwise direction, which matches the external thread of the reverse screw 61 . In this way, the cooperation between the lock nut 62 and the anti-thread screw 61 is a positive fit, and the cooperation between the anti-thread screw 61 and the screw rod 6 is a counter-fit. When the lock nut 62 and the anti-thread screw 61 are in the rotation process of locking , the anti-thread screw 61 will follow the lock nut 62 to rotate in the same direction, then the anti-thread screw 61 will rotate and move to both ends of the screw rod 6, so that the lock nut 62 is tightened more tightly, and the anti-thread screw 61 is fixed on the connecting frame 3 The inner side is also in the state of tightening the inner wall of the connecting frame 3, so that the pole fixing frame 4 and the lamp holder fixing frame 5 are connected more firmly; The tooth screw 61 will also rotate in the same direction with the lock nut 62, so the anti-thread screw 61 will rotate and move towards the middle of the screw rod 6, thereby driving the lock nut 62 to be in closer contact with the outer wall of the fixed connecting frame 3, thereby increasing the locking force. The resistance to the rotation of the lock nut 62 reduces the probability of the lock nut 62 getting loose. Through the cooperation of different threads between the screw rod 6 , the anti-thread screw 61 and the lock nut 62 , a structure for preventing loose connection is formed, which effectively ensures the firmness and stability of the connecting parts.

Referring to FIG. 3 and FIG. 4 , the bottom end of the connecting plate 51 on the lamp cap holder 5 is the claw 53 , and the claw 53 is fixedly connected to the back of the lamp cap 1 . Since the back of the lamp cap 1 is provided with a plurality of heat dissipation plates 11 arranged in parallel, it is a more convenient connection method to directly connect the claws 53 to the heat dissipation plates 11 . The tops of the two heat sinks 11 at the back of the lamp cap 1 are respectively provided with slots 12 extending along the length direction of the heat sink. The cross section of the slot 12 coincides with the cross section of the hook claw 53, and the hook claw 53 and the slot 12 are snapped together after installation. Connected together, in order to prevent relative sliding between the hook claw 53 and the slot 12, the hook claw 53 and the slot 12 are fixed by screws, and the screw runs through the hook claw 53 and the slot 12 longitudinally, so that the lamp holder 5 is connected In the middle part of the back of the lamp cap 1 , the stress point of the lamp cap fixing frame 5 on the lamp cap 1 is as consistent as possible with the position of the center of gravity of the lamp cap 1 . Compared with the way of the existing street lamps connecting the light pole on the side of the lamp cap, in the utility model, the force on each part of the lamp cap 1 is relatively balanced, and there is no need to increase the thickness of the material structure at the connection between the lamp cap 1 and the pole 2 to ensure Reliability, so that certain materials can be saved; in addition, the sealing ring installed inside the lamp cap 1 for waterproofing will not be squeezed and deformed due to uneven force on the lamp cap 1, and similarly, it will not cause the lamp cap 1 to leak In this way, the waterproof effect of the lamp holder 1 is also greatly improved. The test proves that the waterproof level of this structure of the utility model can reach IP67, and there will be no water ingress inside the lamp holder when the lamp holder is soaked in water. In order to ensure that the claw 53 does not come out of the slot 12 , the sum of the lateral widths of the claw 53 and the slot 12 must be greater than the distance between the cooling plate where the slot 12 is located and its adjacent cooling plates. Like this, when hook claw 53 deviates from the draw-in groove 12 partly, the back of hook claw 53 can be blocked by the heat dissipation plate adjacent to draw-in groove 12, thereby can not come out further and cause them to loosen completely.

On the basis of the traditional street lamp connection method, the utility model adopts a hinged connection between the pole and the lamp head. In order to enhance the stability of the connection, a series of anti-loosening fastening connection structures are configured, which not only achieves The purpose of being able to conveniently adjust the irradiation angle of the lamp head is to ensure the reliability of the connection between the lamp head and the pole.

Claims (6)

1, angle adjustable formula LED street lamp, comprise the lamp stand that supports street lamp, be connected in the pole on the lamp stand, and be fixed in lamp holder on the pole, it is characterized in that: be connected by one fixedly connected between pole top and the middle part, the lamp holder back side, this fixedly connected comprises by screw rod hinged strut fixation frame and lamp holder fixed mount; Have internal diameter and the trepanning that pole top external diameter matches on the described strut fixation frame, have hook on the lamp holder fixed mount, described lamp holder is provided with the draw-in groove that matches with above-mentioned hook.

2, angle adjustable formula LED street lamp according to claim 1, it is characterized in that: described screw rod two ends have anticlockwise anti-pitch thread, and these screw rod two ends have two anti-tooth screws that are provided with dorsad, be respectively arranged with a locking nut on two anti-tooth screws, described locking nut has clockwise positive pitch thread, described anti-tooth screw has internal thread and external screw thread, the anti-pitch thread of its internal thread and above-mentioned screw rod is complementary, and the positive pitch thread of its external screw thread and above-mentioned locking nut is complementary.

3, angle adjustable formula LED street lamp according to claim 1 is characterized in that: extend two symmetrically arranged connecting pins by cover hole wall both sides on the described strut fixation frame, the end of this connecting pin have over against hinge hole.

4, angle adjustable formula LED street lamp according to claim 1, it is characterized in that: the cross section of described lamp holder fixed mount is the H shape, both sides have the connecting plate of two symmetries, have on the connecting plate top over against hinge hole, the bottom has described hook.

5, according to claim 1 or 4 described angle adjustable formula LED street lamps, it is characterized in that: the back of described lamp holder has many heat sinks, wherein two heat sink tops that are positioned at symmetric position are respectively equipped with the draw-in groove that extends along the heat sink length direction, and the cross section of this draw-in groove and the cross section of above-mentioned hook match.

6, angle adjustable formula LED street lamp according to claim 5 is characterized in that: fix by screw between described hook and the draw-in groove.

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