Plastic signal lamp

Abstract

The utility model discloses a plastic signal lamp which comprises a shell, the top end of the shell is connected with a spherical cover in a clamped mode, a bottom plate is inserted in the shell, a lamp panel is installed on the bottom plate, heat dissipation windows are formed in the two side walls of the shell, heat conduction frames are fixedly arranged on the inner walls of the heat dissipation windows, and rotating shafts are arranged in the heat dissipation windows. A plurality of light blades are fixedly connected to the side wall of the rotating shaft, and an arc-shaped net cover is arranged on one side of the heat dissipation window; according to the plastic signal lamp disclosed by the utility model, through the two heat dissipation windows arranged on the side wall of the shell, the rotating shaft inside the shell and the plurality of light blades, a part of air flowing in the transverse direction or the forward direction in the environment can enter the shell, so that the air flowing in the transverse direction or the forward direction in the environment can be prevented from entering the shell; and by arranging a heat conduction frame, a hot melting frame and an arc-shaped net cover, in the normal use stage, the arc-shaped net cover can play a role in preventing foreign matter from entering.

Description

Technical Field

[0001] The utility model relates to a signal lamp, in particular to a plastic signal lamp. Background Art

[0002] Signal lights are a common type of lighting fixture. Their bright lighting is used to send out and represent certain signals. Signal lights are widely used to provide information in various environments.

[0003] In the daily use of traffic lights, since the light boards currently installed inside are mostly low-heat or even non-heating lamps, the heat dissipation requirements are relatively low. However, for the normal use of the light boards and a good service life, they should still work in a ventilated environment. Most of the current signal lights introduce ambient airflow for ventilation through slots. This has requirements on the direction of the airflow, and only positive airflow can be blown in, resulting in general ventilation efficiency. Although the internal light board will not release a lot of heat when working normally, it will release a lot of heat when working abnormally. At this time, rapid ventilation is required, and nearby staff need to be notified as soon as possible, and maintenance should be carried out in time. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic signal lamp to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a plastic signal lamp, comprising a shell, a spherical cover is snap-connected to the top of the shell, a bottom plate is inserted inside the shell, a lamp board is installed on the bottom plate, heat dissipation windows are opened on both side walls of the shell, a heat conduction frame is fixedly arranged on the inner wall of the heat dissipation window, a rotating shaft is arranged inside the heat dissipation window, a plurality of light blades are fixedly connected to the side wall of the rotating shaft, and an arc-shaped mesh cover is arranged on one side of the heat dissipation window;

[0006] A waterproof ring is arranged between the spherical cover and the outer shell, a metal ring is fixedly connected to the center of the waterproof ring, and an expansion ring is fixedly connected to the top of the outer wall of the metal ring.

[0007] As a preferred technical solution of the utility model, the bottom end of the shell is snap-connected with a base, and a quick connection terminal is installed at the bottom of the base.

[0008] As a preferred technical solution of the utility model, the top end and the bottom end of the rotating shaft are rotatably connected to the top inner wall and the bottom inner wall of the heat-conducting frame respectively.

[0009] As a preferred technical solution of the utility model, a side wall of the arc-shaped mesh cover is fixedly connected with a hot melt frame, and the hot melt frame is connected to the heat conduction frame.

[0010] As a preferred technical solution of the present utility model, the height of the metal ring is higher than the thickness of the waterproof ring, and the expansion ring is placed on the top surface of the waterproof ring.

[0011] As a preferred technical solution of the present utility model, the outer wall of the expansion ring fits with the inner wall of the spherical cover.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By providing two heat dissipation windows on the side wall of the outer shell, the rotating shaft and multiple lightweight blades inside it can allow part of the air flow, whether horizontal or positive, in the environment to enter the outer shell, achieving the effect of strengthening ventilation and heat dissipation inside the outer shell. By providing a heat conduction frame, a heat melting frame and an arc-shaped mesh cover, during normal use, the arc-shaped mesh cover can block foreign objects from entering. When the internal lamp board works abnormally and generates a large amount of heat, the heat causes the heat melting frame to melt, so that it can fall from the surface of the heat conduction frame. On the one hand, it can reduce the blockage of the heat dissipation window and strengthen ventilation and heat dissipation. On the other hand, the sound generated when it falls can prompt the surrounding staff to pay attention. At this time, the signal lamp generates a large amount of heat abnormally inside and needs to be checked and maintained.

[0014] 2. By providing a waterproof ring at the connection between the spherical cover and the outer shell, the connection gap can be sealed, achieving a good waterproof effect. At the same time, in cooperation with the metal ring and the expansion ring, once moisture enters, the expansion ring expands towards the inner wall of the spherical cover, further strengthening the seal and blocking the water flow gap, achieving a strong waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the heat dissipation window part of the present utility model;

[0017] Figure 3 is a schematic assembly structural diagram of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the waterproof ring part of the present utility model.

[0019] In the figure: 1. Spherical cover; 2. Waterproof ring; 3. Outer shell; 4. Lamp board; 5. Bottom plate; 6. Base; 7. Quick wiring terminal; 8. Heat dissipation window; 9. Heat conduction frame; 10. Rotating shaft; 11. Lightweight blade; 12. Arc-shaped mesh cover; 13. Heat melting frame; 14. Expansion ring; 15. Metal ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution for a plastic signal lamp:

[0022] Embodiment 1:

[0023] According to Figure 1 、 Figure 2 and Figure 3 shown, a plastic signal lamp includes a housing 3. A spherical cover 1 is snap-connected to the top end of the housing 3. A bottom plate 5 is inserted into the interior of the housing 3. A lamp board 4 is installed on the bottom plate 5. High-power, high-brightness, high-voltage lamp beads are used, rectified by a rectifier bridge, with small power and high brightness, and it is more stable than other products in the market. Heat dissipation windows 8 are opened on both side walls of the housing 3. A heat conduction frame 9 is fixedly arranged on the inner wall of the heat dissipation window 8. The heat conduction frame 9 is a heat-conducting metal. A rotating shaft 10 is arranged inside the heat dissipation window 8. A plurality of light-weight blades 11 are fixedly connected to the side wall of the rotating shaft 10. An arc-shaped mesh cover 12 is arranged on one side of the heat dissipation window 8;

[0024] A base 6 is snap-connected to the bottom end of the housing 3. A quick wiring terminal 7 is installed at the bottom of the base 6. The top end and the bottom end of the rotating shaft 10 are respectively rotationally connected to the top inner wall and the bottom inner wall of the heat conduction frame 9. One side wall of the arc-shaped mesh cover 12 is fixedly connected to a heat-melting frame 13. The heat-melting frame 13 is made of a material that melts when heated, such as paraffin. The heat-melting frame 13 is connected to the heat conduction frame 9. When working normally, the heat-melting frame 13 is adhesively attached to the surface of the heat conduction frame 9. When high temperature is generated, the heat causes the heat-melting frame 13 to melt, so it cannot bear the weight of the arc-shaped mesh cover 12, and the arc-shaped mesh cover 12 drops, making the heat dissipation window 8 fully exposed for rapid ventilation and heat dissipation. When working normally, due to low heat dissipation requirements, the arc-shaped mesh cover 12 needs to be placed on one side for protection to prevent foreign objects from entering.

[0025] During specific use, for a plastic signal lamp of the present utility model, an operator can install multiple components of the signal lamp. During the daily use of the signal lamp, the internal lamp board 4 needs appropriate ventilation and heat dissipation. The airflow in the environment will pass through the arc-shaped mesh cover 12 and blow multiple lightweight blades 11, thereby driving the rotation of the rotating shaft 10. The rotation of the rotating shaft 10 causes the multiple lightweight blades 11 to generate an airflow blowing inside the housing 3. In this way, whether it is a horizontal air flow or a forward air flow, a part of it can enter the housing 3, achieving the effect of strengthening ventilation and heat dissipation inside the housing 3. When the internal lamp board 4 malfunctions, it may generate a large amount of heat. At this time, the heat will be transferred to the heat conduction frame 9 inside the heat dissipation window 8, which is made of a heat-conducting metal material. After absorbing a large amount of heat, the heat-melting frame 13 connected to its surface will melt, so it can fall off the surface of the heat conduction frame 9. One is that it can reduce the blockage of the heat dissipation window 8 and strengthen ventilation and heat dissipation. The other is that a sound is generated when it falls, which can prompt the surrounding staff to pay attention. At this time, the signal lamp internally generates an abnormal large amount of heat and needs to be inspected and maintained.

[0026] Embodiment 2:

[0027] On the basis of Embodiment 1, as Figure 1 and Figure 3 、 Figure 4 shown, a waterproof ring 2 is provided between the spherical cover 1 and the housing 3. A metal ring 15 is fixedly connected to the center of the waterproof ring 2. The top of the outer wall of the metal ring 15 is fixedly connected with an expansion ring 14. The expansion ring 14 is made of water-swellable rubber. The height of the metal ring 15 is higher than the thickness of the waterproof ring 2. The expansion ring 14 is placed on the top surface of the waterproof ring 2, and the outer wall of the expansion ring 14 fits against the inner wall of the spherical cover 1.

[0028] During specific use, for a plastic signal lamp of the present utility model, during the assembly of the spherical cover 1 and the housing 3, the waterproof ring 2 is placed at the connection between the two to play a role in waterproofing and water isolation. Once water enters from the connection gap between the spherical cover 1 and the housing 3, the water is first blocked by the waterproof ring 2. If the water continues to enter and accumulate, it will spread to the expansion ring 14. The expansion ring 14 is made of water-swellable rubber. Therefore, under the limiting action of the metal ring 15, it can only expand outward, and thus gradually fits tightly against the inner wall of the spherical cover 1, preventing the water from continuing to penetrate inward.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "attachment", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one solution", "some solutions", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

Claims

1. A plastic signal lamp, comprising a housing (3), characterized in that: The top end of the shell (3) is snap-connected with a spherical cover (1), a bottom plate (5) is inserted into the interior of the shell (3), a lamp board (4) is mounted on the bottom plate (5), heat dissipation windows (8) are provided on both side walls of the shell (3), a heat conduction frame (9) is fixedly provided on the inner wall of the heat dissipation window (8), a rotating shaft (10) is provided inside the heat dissipation window (8), a plurality of light blades (11) are fixedly connected to the side wall of the rotating shaft (10), and an arc-shaped mesh cover (12) is provided on one side of the heat dissipation window (8); A waterproof ring (2) is provided between the spherical cover (1) and the outer shell (3); a metal ring (15) is fixedly connected to the center of the waterproof ring (2); and an expansion ring (14) is fixedly connected to the top of the outer wall of the metal ring (15).

2. A plastic signal lamp according to claim 1, characterized in that: The bottom end of the housing (3) is snap-connected with a base (6), and a quick-connect terminal (7) is installed at the bottom of the base (6).

3. A plastic signal lamp according to claim 1, characterized in that: The top end and the bottom end of the rotating shaft (10) are rotatably connected to the top inner wall and the bottom inner wall of the heat conducting frame (9) respectively.

4. A plastic signal lamp according to claim 1, characterized in that: A heat-melting frame (13) is fixedly connected to one side wall of the arc-shaped mesh cover (12), and the heat-melting frame (13) is connected to the heat-conducting frame (9).

5. A plastic signal lamp according to claim 1, characterized in that: The height of the metal ring (15) is higher than the thickness of the waterproof ring (2), and the expansion ring (14) is placed on the top surface of the waterproof ring (2).

6. A plastic signal lamp according to claim 1, characterized in that: The outer wall of the expansion ring (14) fits the inner wall of the spherical cover (1).

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