CN204313164U - Road lamp cap - Google Patents

Abstract

The utility model provides a lamp holder for a street lamp, which comprises a bottom support, a lampshade, a top cover, a top cap, an LED chip and a tension rod. The tension rod passes through the lampshade, and the first end of the tension rod is fixedly connected with the bottom support. end is fixedly connected with the top cover, the lampshade is provided with a first protruding ring at the first end close to the top cover, the bottom surface of the top cover is provided with a first ring groove, the first ring groove is located at the outermost side of the top cover, and the first ring groove A first sealing ring is provided, the first protruding ring is set in the first ring groove and has an interference fit with the first sealing ring, the lampshade is provided with a first positioning hole at the second end close to the bottom bracket, and the bottom bracket faces the lampshade A second ring groove and a connecting part are provided on the end surface of the upper end, the connecting part is fixedly connected to the first end of the tension rod through the first positioning hole, the bottom bracket is adjacent to the lampshade, and the space between the second ring groove and the lampshade is in an interference fit. A second sealing ring is provided. The lamp holder of the street lamp is simple in structure and easy to install, and also has good sealing performance, so that the street lamp can prevent water vapor from entering when the street lamp is used outdoors.

Description

Street lamp holder

technical field

The utility model relates to a lamp holder of a street lamp, in particular to a lamp holder of a street lamp installed with an LED luminous body.

Background technique

LED lights have the characteristics of long life and power saving, and have been widely used in recent years. With the successful development of high-power LED, it has been gradually applied to urban road lighting. At the same time, with the continuous implementation of the national semiconductor lighting project, the LED road lighting bidding project of the National Development and Reform Commission, and the LED street lamp project of ten cities and ten thousand lamps, LED street lamps and other road lighting lamps have gradually become popular due to their advantages of high efficiency, energy saving, and high color rendering. Popularized and applied to urban ordinary road lighting.

At present, the common LED street lights include light poles and lamp holders installed on the light poles. The lamp holders include upper lampshades, lower lampshades, reflectors, lamp holders, LED light-emitting elements, power components and top covers. When assembling the lamp holder of the LED street lamp, after the lamp holder, the lower lampshade, the upper lampshade and the top cover are connected in sequence, since the various parts of the LED street lamp need to be provided with a complex connection structure, while ensuring the overall rigidity requirements, it is also to meet The need for waterproof performance leads to complex overall structure of LED street lamps and cumbersome installation steps.

Contents of the invention

The purpose of the utility model is to provide a street lamp lamp holder with simple structure and good sealing performance.

In order to achieve the purpose of the utility model, the utility model provides a street lamp cap, including a bottom bracket, a lampshade, a top cover, a top cap, an LED chip and a tension rod, the lampshade is installed on the bottom bracket, the top cover is installed on the lampshade, the top The cap is installed on the top cover, and the LED chip is arranged in the lampshade and fixed on the top cover, wherein the tension rod passes through the lampshade, the first end of the tension rod is fixedly connected with the bottom bracket, and the second end of the tension rod is fixed to the top cover connection, the lampshade is provided with a first protruding ring near the first end of the top cover, the bottom surface of the top cover is provided with a first ring groove, the first ring groove is located at the outermost side of the top cover, and the first ring groove is provided with a first seal ring, the first protruding ring is set in the first ring groove and has an interference fit with the first sealing ring, the lampshade is provided with a first positioning hole at the second end close to the bottom bracket, and the bottom bracket is provided with a first positioning hole on the end surface facing the lampshade The second ring groove and the connecting part, the connecting part passes through the first positioning hole and is fixedly connected with the first end of the tension rod, the bottom bracket is adjacent to the lampshade, and the space between the second ring groove and the lampshade is provided with a second sealing lock up.

It can be seen from the above scheme that by providing a convex ring on the upper end of the lampshade and by providing a ring groove on the top cover, the sealing ring is provided with an interference fit between the ring grooves by using the convex ring, and at the same time a ring groove is provided on the bottom support. There is an interference-fit sealing ring between the lampshade and the chute, so that the lampshade and the bottom bracket are firmly fixed on the top cover under the action of the tension rod. This installation method is not only simple in structure and easy to install, but also conducive to improving the street light The sealing performance makes the street lamp effectively prevent water vapor from entering the lampshade when it is used outdoors.

A further solution is that the top cap is provided with a sealing part, the sealing part is set outside the tension rod, a third annular groove is opened on the sealing part, the sealing part is adjacent to the top cover, and the third annular groove is provided with a third annular groove in an interference fit. Three sealing rings.

A further solution is that the top cap is provided with a plurality of second positioning holes, and the top cover is provided with a plurality of mounting holes, and the screws pass through the second positioning holes and are fixedly matched with the mounting holes.

It can be seen from the above that the sealing ring is provided with an interference fit in the third groove provided on the top cap to further improve the waterproof performance of the street lamp.

A further solution is that the LED chip is provided with a plurality of light-emitting lamp beads facing the bottom bracket, and the street lamp is also provided with a reflector, which is provided with a plurality of through holes, and the reflector is arranged on the LED chip, and each through hole is set on the A glowing lamp bead outside.

It can be seen from the above that the reflection of light can be effectively increased through the reflector, and the brightness can be effectively improved.

A further solution is that an air guide hole is provided through the top cover, and the air guide hole is provided with an air valve.

It can be seen from the above that since the inside of the lampshade is sealed, the air in the lampshade will be heated and expanded when the street lamp is in operation, so it is necessary to install an air valve to balance the air pressure in the lampshade.

A further solution is that the second end of the tension rod is provided with a nut, the top cover is provided with a third positioning hole, the tension rod passes through the third positioning hole, and the second nut is adjacent to the top cover.

It can be seen from the above that the tension rod is fixedly connected by the nut, which is cheap and easy to install and fix, so that the lampshade and the bottom bracket are firmly fixedly connected to the top cover through the tension rod.

A further solution is that the top cover is provided with a plurality of cooling fins on the outward end surface.

A further solution is that a plurality of cooling fins are spirally distributed on the outward end surface of the top cover.

A further solution is that the outer wall of the top cap is provided with a plurality of drain holes.

It can be seen from the above that since the LED chip is adjacent to the top cover, the waste heat generated by the LED chip can be effectively dissipated through the spirally distributed heat dissipation fins. The setting of the drain hole is beneficial to avoid water accumulation in the top cap.

Description of drawings

Fig. 1 is a structural diagram of a street lamp applying an embodiment of the street lamp lamp cap of the present invention.

Fig. 2 is a partially enlarged view of an embodiment of the lamp holder of the street lamp of the present invention.

Fig. 3 is an exploded view of the partial structure of the embodiment of the lamp cap of the street lamp of the present invention.

Fig. 4 is a structural diagram of a top cap and a top cover in an embodiment of the lamp holder of the street lamp of the present invention.

Fig. 5 is a cross-sectional view of an embodiment of a lamp cap of a street lamp of the present invention.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Detailed ways

Referring to FIG. 1 and FIG. 2 , FIG. 1 is a structural diagram of a street lamp 1 , and FIG. 2 is a partially enlarged view of a lamp holder 1 of a street lamp at the position of the lampshade 4 . The street lamp 1 includes a lamp post 11 and a lamp cap installed on the lamp post. The lamp cap includes a top cap 2 , a top cover 3 , a lampshade 4 and a base 5 . The lampshade 4 is installed on the bottom support 5 , the top cover 3 is installed on the lampshade 4 , the top cap 2 is installed on the top cover 3 , and the top cap 2 is fixedly connected with the end of the light pole 11 .

Referring to FIG. 3 and FIG. 4 , FIG. 3 is an exploded view of a partial structure of the street lamp 1 , and FIG. 4 is a structural view of the top cover 3 and the top cap 2 . The street lamp 1 also includes a tension rod 6 arranged in the lampshade 4 . The top cover 3 is arranged in a disk shape, and a plurality of heat dissipation fins 33 are arranged on the outward end surface of the top cover 3. The plurality of heat dissipation fins 33 are arranged in a spiral shape with the center of the top cover 3 as the origin. Heat conduction grooves for air circulation are formed between the fins 33 of the fins. A positioning hole 31 is provided at the center of the top cover 4 . On the outer periphery of the top cover 3, an air guide hole 32 is provided penetrating in the axial direction, and the street lamp 1 preferably includes an air valve member 34 arranged in the air guide hole 32 to be installed therein. A plurality of installation holes 35 for installing the top cap 2 are also provided on the top cover 3 . A wire hole 38 is penetratingly arranged on one side of the positioning hole 31 on the top cover 3 , and the wire passes through the wire hole 38 to be electrically connected with the LED chip, and a waterproof screw (not shown) is arranged on the wire hole 38 .

The top cap 2 is arranged in a cylindrical shape, and the middle cavity of the top cap 2 is used to install and fix the light pole 11 through screws. The outer wall of the top cap 2 has a plurality of convex edges extending outward, and a positioning hole is opened on the convex edge. 21. The top cap 2 is installed in the middle of the top cover 3, and covers the outside of the positioning hole 31. The screw passes through the positioning hole 21 and is fixedly connected with the installation hole 35, and then the top cap 2 and the top cover 3 are fixedly connected. The outer wall of the top cap 2 is also provided with four drain holes 24 , and the four drain holes 24 are respectively arranged at positions between the two positioning holes 21 .

Referring to FIG. 5 , FIG. 5 is a cross-sectional view of a lamp cap of a street lamp. The top cap 2 is provided with a sealing part 22 at the end facing the top cover 3, the sealing part 22 is arranged in an annular shape and forms a cavity in it, after the top cap 2 is installed on the top cover 3, the sealing part 22 is sleeved on the tension rod 6 and the Nut 61 is connected to the outside of the end. An annular groove is opened on the sealing part 22 , and after the sealing part 22 is adjacent to the top cover 3 , a sealing ring 23 is provided in the annular groove of the sealing part 22 and the top cover 3 in an interference fit.

The lampshade 4 is arranged in a spherical shape, and a hollow cavity is provided in the middle of the lampshade 4 , and a protruding ring 41 extends outward along the circumferential direction at the end of the lampshade 4 facing the top cover 3 . An annular groove 36 is arranged on the bottom surface of the top cover 3 towards the lampshade 4, the annular groove 36 is arranged on the outermost side of the top cover 3, and the protruding ring 41 is arranged in the annular groove 36, and the space between the annular groove 36 and the protruding ring 41 A sealing ring 37 is provided with an interference fit.

The top cover 3 is provided with an LED chip on the bottom surface facing the lampshade 4, the substrate of the LED chip is adjacent to and fixed to the top cover 3, and a plurality of LED light-emitting lamp beads 71 are arranged on the substrate of the LED chip, and the plurality of LED light-emitting lamp beads 71 are evenly spaced. Distributed on the LED chip. A reflective plate 72 is fixedly connected to the LED chip 45, and a plurality of through holes are arranged on the reflective plate 72, each through hole is set outside an LED light emitting lamp bead 71, and the end surface of the reflective plate 72 facing the base 5 is coated with Has reflective material.

The bottom bracket 5 is provided with a connecting portion 51 and a ring groove on the end face facing the lampshade 4 . The lampshade 4 is provided with a positioning hole towards the end of the bottom bracket 5. When the bottom bracket 5 is installed, the connecting portion 51 of the bottom bracket 5 passes through the positioning hole of the lampshade 4, and the first end of the tension rod is connected to the connecting portion 51 in the lampshade. Fixedly connected, the space between the ring groove of the bottom support 5 and the outer wall of the lampshade 4 is provided with a sealing ring 52 in an interference fit manner. The tension rod 6 inside the lampshade 4 passes through the reflector 72 and the positioning hole 31 , and the second end of the tension rod 6 is fixedly connected with the nut 61 in the cavity surrounded by the sealing portion 22 .

It can be seen from the above that by providing a convex ring on the upper end of the lampshade and by providing a ring groove on the top cover, the sealing ring is provided with an interference fit between the ring grooves by using the convex ring, and at the same time a ring groove is provided on the bottom bracket. There is an interference-fit sealing ring between the chute and the chute, so that the lampshade and the bottom bracket are firmly fixed on the top cover under the action of the tension rod. This installation method is not only simple in structure and easy to install, but also conducive to improving the sealing of street lamps. Excellent performance, so that the street lamp can effectively prevent water vapor from entering the lampshade when it is used outdoors.

Claims (9)

1. Street light lamp holder, including Bottom bracket; a lampshade, the lampshade is mounted on the bottom support; a top cover, the top cover is installed on the lampshade; a top cap mounted on the top cap; an LED chip, the LED chip is arranged in the lampshade and fixed on the top cover; It is characterized by: The street lamp also includes a tension rod, the tension rod passes through the lampshade, the first end of the tension rod is fixedly connected to the bottom bracket, and the second end of the tension rod is fixedly connected to the top cover; The lampshade is provided with a first protruding ring near the first end of the top cover, the bottom surface of the top cover is provided with a first ring groove, and the first ring groove is located at the outermost side of the top cover, so The first ring groove is provided with a first sealing ring, and the first protruding ring is arranged in the first ring groove and has an interference fit with the first sealing ring; The lampshade is provided with a first positioning hole at the second end close to the bottom support, and the bottom support is provided with a second ring groove and a connecting part on the end face facing the lampshade, and the connecting part passes through the The first positioning hole is fixedly connected to the first end of the tension rod, the base is adjacent to the lampshade, and the space between the second ring groove and the lampshade is provided with a second sealing ring in an interference fit manner . 2. The street lamp lamp holder according to claim 1, characterized in that: The top cap is provided with a sealing portion, the sealing portion is sleeved on the outside of the tension rod, and a third annular groove is opened on the sealing portion, the sealing portion is adjacent to the top cover, and the third annular groove A third sealing ring is arranged on the upper part in an interference fit manner. 3. The street lamp lamp holder according to claim 2, characterized in that: The top cap is provided with a plurality of second positioning holes, and the top cover is provided with a plurality of installation holes, and screws pass through the second positioning holes and are fixedly matched with the installation holes. 4. The street lamp lamp holder according to claim 3, characterized in that: The LED chip is provided with a plurality of light-emitting lamp beads facing the bottom support, and the lamp head of the street lamp is also provided with a reflector, and the reflector is provided with a plurality of through holes, and the reflector is arranged on the LED chip. , each of the through holes is covered by one of the light emitting lamp beads. 5. The street lamp lamp holder according to claim 4, characterized in that: An air guiding hole is formed through the top cover, and the air guiding hole is provided with an air valve. 6. The street lamp base according to any one of claims 1 to 5, characterized in that: The second end of the tension rod is provided with a nut, the top cover is provided with a third positioning hole, the tension rod passes through the third positioning hole, and the nut is adjacent to the top cover. 7. The street lamp lamp holder according to claim 6, characterized in that: The top cover is provided with a plurality of cooling fins on the outward end surface. 8. The street lamp lamp holder according to claim 7, characterized in that: A plurality of the heat dissipation fins are spirally distributed on the outward end surface of the top cover. 9. The street lamp lamp holder according to claim 8, characterized in that: The outer wall of the top cap is penetratingly provided with a plurality of drain holes.