Pressure self-balancing ground buried lamp

Abstract

This application discloses a pressure-self-balancing underground light, including a housing and a lighting component. A lampshade is installed inside the housing, and the lighting component is installed inside the lampshade. A pressure regulating component is connected to the lampshade. The pressure regulating component includes a connecting plate, a housing, and a telescopic airbag. The connecting plate is fixedly installed at the lower part of the lampshade, and the connecting plate and the housing cooperate to form a placement cavity. The telescopic airbag is located in the placement cavity and communicates with the lampshade. A reset mechanism for restoring the shape of the telescopic airbag is provided between the airbag and the housing. The beneficial effects of this application are: a pressure regulating component is installed at the bottom of the lampshade; when the temperature inside the lampshade rises, some hot air enters the telescopic airbag, causing the airbag to expand, thus preventing air from escaping from the lampshade to the outside; when the temperature inside the lampshade drops, air from the telescopic airbag enters the lampshade to balance the air pressure, effectively preventing humid air from entering the lampshade and condensing into water droplets; the reset mechanism can accelerate the restoration speed of the telescopic airbag, thereby increasing the speed of air pressure balance inside the lampshade.

Description

Technical Field

[0001] This application relates to the field of underground lighting technology, and more particularly to a pressure self-balancing underground lighting. Background Technology

[0002] As people's living standards continue to improve, many people choose to travel or play at night. In places with poor lighting conditions, in-ground lights are usually installed for illumination. In-ground lights are lights whose body is buried in the ground to prevent damage. In addition to providing lighting, in-ground lights can also beautify the environment. Therefore, in-ground lights are widely used in parks, commercial districts, squares and other places.

[0003] Currently, in-ground lights typically consist of a lamp body, a light-transmitting panel, and an outer casing. Because in-ground lights are installed underground, they have poor ventilation. When in-ground lights are working for extended periods, the air expands due to heat, causing some gas to escape to the outside, resulting in a reduction of air inside the lamp. When the in-ground light is turned off, the internal temperature gradually decreases, causing the internal air pressure to be lower than the external air pressure. At this time, humid air from the outside will enter the in-ground light under the influence of air pressure and condense into water droplets. This not only affects the lighting effect of the in-ground light but can also easily damage the internal circuitry. Utility Model Content

[0004] One objective of this application is to provide a pressure self-balancing in-ground lamp that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a pressure self-balancing underground light, comprising a housing and a lighting component, wherein a lampshade is installed inside the housing, the lighting component is installed inside the lampshade, a voltage regulating component is connected to the lampshade, the voltage regulating component comprises a connecting plate, a housing, and a telescopic airbag, the connecting plate is fixedly installed on the lower part of the lampshade, the connecting plate and the housing cooperate to form a placement cavity, the telescopic airbag is located in the placement cavity and communicates with the lampshade; a reset mechanism for restoring the shape of the telescopic airbag is provided between the telescopic airbag and the housing.

[0006] This design allows the pressure regulating component to balance the air pressure inside the lampshade. When the air inside the lampshade expands, some hot air enters the telescopic airbag and causes it to expand, preventing air from escaping to the outside. When the lighting component stops heating, the air pressure inside the lampshade decreases, and the air in the telescopic airbag re-enters the lampshade to balance the pressure, thus preventing humid air from entering the lampshade and forming water droplets. Furthermore, the reset mechanism allows the telescopic airbag to contract quickly, increasing the speed at which the air pressure inside the lampshade balances.

[0007] Preferably, the reset mechanism includes a spring, and a mounting plate is provided at the bottom of the telescopic airbag. One end of the spring is attached to the mounting plate, and the other end is attached to the bottom of the housing. With this configuration, when the air pressure inside the lampshade increases, the telescopic airbag extends and compresses the spring to contract; when the air pressure inside the lampshade decreases, the spring, under its own elastic force, pushes the telescopic airbag to contract, thereby compressing the air inside the telescopic airbag into the lampshade to balance the air pressure.

[0008] Preferably, the mounting plate is provided with a buckle, and the spring is fixedly installed in the buckle. This configuration allows the spring to be securely connected to the mounting plate via the buckle, preventing any shift in the spring's extension / retraction angle.

[0009] Preferably, the longitudinal cross-section of the spring is trapezoidal, with the narrow end of the spring extending into the buckle and the wide end of the spring fitting against the bottom of the housing. This configuration ensures that each layer of the spring has a different diameter, allowing for greater compression space and extending the spring's service life.

[0010] Preferably, an annular limiting block is sealed at the opening of the telescopic airbag, and an annular limiting groove is provided at the bottom of the lampshade to cooperate with the annular limiting block. This arrangement allows the opening of the telescopic airbag to be aligned with the lampshade through the insertion and engagement of the annular limiting block and the annular limiting groove. This improves the installation speed of the telescopic airbag and prevents it from shifting.

[0011] Preferably, the annular limiting block is provided with a positioning groove, and a positioning element is provided in the annular limiting groove for limiting the position. With this configuration, the user only needs to insert the positioning block into the positioning groove to align the screw holes on the lampshade and the connecting plate, thereby improving the installation speed of the lampshade.

[0012] Preferably, the sidewall of the housing has multiple vent holes. This design further reduces the difficulty of extending the telescopic airbag; when the telescopic airbag extends, the gas inside the housing can be discharged through the vent holes, thereby preventing the air pressure inside the housing from rising.

[0013] Preferably, the top of the lampshade is provided with a mounting groove, an annular ring is installed in the mounting groove, the inner contour of the annular ring is provided with an annular groove, and a light-transmitting plate is installed in the annular groove. This arrangement allows the lighting assembly to be protected by the light-transmitting plate, while the light source within the lighting assembly can shine light to the outside through the light-transmitting plate.

[0014] Preferably, an annular pressure plate for pressing the ring is fixedly installed on the lampshade, and the outer contour of the annular pressure plate extends out of the outer wall of the housing. This arrangement allows the annular pressure plate to limit the position of the light-transmitting plate, so that when the in-ground light is installed in the ground, the outer contour of the annular pressure plate can fit against the surrounding ground, thereby preventing the in-ground light from completely sinking below the ground level.

[0015] Preferably, the bottom of the outer shell is fitted with a hollow base, with the outer shell completely extending into the base. The diameter of the base is much larger than the diameter of the outer shell, and there is a height difference between the bottom of the outer shell and the bottom of the base. This arrangement allows the base to be buried underground, providing stable support for the lampshade and preventing surrounding soil from compressing the outer shell, thus ensuring that the contraction of the telescopic airbag is not affected by external factors.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: In this invention, the bottom of the lampshade is connected to a pressure regulating component. When the temperature inside the lampshade rises, some hot air enters the telescopic airbag and causes the telescopic airbag to expand, so as to prevent the air inside the lampshade from escaping to the outside, thereby ensuring that the air pressure inside the lampshade is not affected. When the temperature inside the lampshade drops, the air in the telescopic airbag enters the lampshade to balance the air pressure, which can effectively prevent the humid air from outside from entering the lampshade and condensing into water droplets.

[0017] A spring is installed between the telescopic airbag and the housing, and the longitudinal cross-section of the spring is trapezoidal. Each layer of the spring has a different diameter, which not only allows for greater compression space but also extends the spring's lifespan. When the air pressure inside the lampshade decreases, the spring, under its own elastic force, pushes the telescopic airbag to contract, thereby compressing the air inside the airbag to balance the air pressure inside the lampshade. This invention uses the spring to rapidly contract the telescopic airbag, thus increasing the speed at which the air pressure inside the lampshade reaches equilibrium. This invention has advantages such as good moisture resistance and long service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the in-ground light in this application.

[0019] Figure 2 This is a cross-sectional structural diagram of the in-ground light in this application.

[0020] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.

[0021] Figure 4 for Figure 2 A magnified structural diagram of local area B in the middle.

[0022] Figure 5 This is a schematic diagram of the structure of the lampshade in this application.

[0023] Figure 6 This is a schematic diagram of the structure of the annular limiting block in this application.

[0024] Figure 7 This is a schematic diagram of the shell structure in this application.

[0025] Figure 8 This is a partial cross-sectional structural diagram of the in-ground light of this application.

[0026] In the diagram: 1. Lampshade; 11. Annular limiting groove; 12. Positioning block; 13. Mounting groove; 100. Housing; 101. Lighting component; 2. Voltage regulating component; 21. Connecting plate; 22. Housing; 23. Telescopic airbag; 200. Placement cavity; 220. Vent hole; 3. Annular limiting block; 31. Positioning groove; 300. Mounting plate; 301. Buckle; 4. Annular ring; 41. Annular groove; 400. Spring; 5. Pressure plate; 500. Light-transmitting plate; 600. Base. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] One aspect of this application provides a pressure-self-balancing in-ground light, one preferred embodiment of which is, for example... Figure 1 and Figure 2 As shown, the device includes a housing 100 and a lighting assembly 101. A lampshade 1 is installed inside the housing 100, and the lighting assembly 101 is installed inside the lampshade 1 to limit the light path of the lighting assembly 101. A pressure regulating assembly 2 is connected to the lampshade 1. The pressure regulating assembly 2 includes a connecting plate 21, a housing 22, and a telescopic airbag 23. The connecting plate 21 is fixedly connected to the lower part of the lampshade 1, and the connecting plate 21 and the housing 22 cooperate to form a placement cavity 200. The telescopic airbag 23 is located in the placement cavity 200 and is in communication with the lampshade 1. When the air inside the lampshade 1 is heated and expands, some of the hot air will enter the telescopic airbag 23 and cause the telescopic airbag 23 to expand, so as to prevent the air inside the lampshade 1 from escaping to the outside. When the lighting assembly 101 stops heating, the air pressure inside the lampshade 1 decreases. At this time, the air in the telescopic airbag 23 enters the lampshade 1 to balance the air pressure, thereby preventing the outside humid air from entering the lampshade 1 and forming water droplets.

[0032] It should be noted that traditional in-ground lights do not have moisture-proof functions. When the internal temperature of the in-ground light rises, the hot air inside the lamp cover 1 will escape through the gaps in the in-ground light. Subsequently, if the temperature inside the lamp cover 1 drops, the air pressure inside the lamp cover 1 will be lower than the outside air pressure, drawing in humid air from the outside and causing water droplets to form inside the in-ground light. The pressure regulating component 2 in this application can effectively prevent the formation of water droplets.

[0033] Furthermore, to further increase the speed at which the telescopic airbag 23 pushes air into the lampshade 1, a reset mechanism for restoring the shape of the telescopic airbag 23 is provided between the telescopic airbag 23 and the housing 22. When the temperature inside the lampshade 1 decreases, the reset mechanism can drive the telescopic airbag 23 to contract rapidly, thereby increasing the speed of air pressure balance inside the lampshade 1 and preventing some humid air from being drawn into the lampshade 1 due to slow air pressure balance.

[0034] In this embodiment, as Figure 2As shown, the reset mechanism includes a spring 400, and a mounting plate 300 is provided at the bottom of the telescopic airbag 23. One end of the spring 400 is attached to the mounting plate 300, and the other end is attached to the bottom of the housing 22. In the initial state, the spring 400 supports the telescopic airbag 23 with its own elasticity and keeps it in a contracted state, so that the telescopic airbag 23 has a larger deformation space. When the air pressure inside the lampshade 1 increases, some air inside the lampshade 1 enters the telescopic airbag 23, and then the telescopic airbag 23 extends and compresses the spring 400 to contract. When the air pressure inside the lampshade 1 decreases, some air inside the telescopic airbag 23 enters the lampshade 1. Since the air pressure inside the telescopic airbag 23 is insufficient to compress the spring 400 after the decrease, the spring 400 can push the telescopic airbag 23 to compress under its own elasticity, thereby quickly squeezing the air inside the telescopic airbag 23 into the lampshade 1 to balance the air pressure.

[0035] Specifically, such as Figure 3 As shown, the mounting plate 300 is provided with multiple buckles 301, which are arranged in a ring. The end of the spring 400 near the telescopic airbag 23 is engaged with the buckle 301. By fixing the spring 400 to the mounting plate 300 through the buckle 301, the telescopic angle of the spring 400 can be effectively prevented from shifting.

[0036] Furthermore, such as Figure 2 As shown, the longitudinal section of spring 400 is trapezoidal. The narrow end of spring 400 extends into buckle 301, and the wide end of spring 400 fits against the bottom of housing 22. Each layer of spring 400 has a different diameter, allowing for greater compression space, which helps reduce the overall volume of housing 22 and extends the service life of spring 400. Of course, in other embodiments, other limiting structures can be provided within housing 22 to fix the wide end of spring 400 to housing 22, thereby further improving the stability of spring 400.

[0037] In this embodiment, as Figure 2 and Figure 4 As shown, an annular limiting block 3 is provided at the opening of the telescopic airbag 23, and an annular limiting groove 11 is provided at the bottom of the lampshade 1 to cooperate with the annular limiting block 3. During installation, the opening of the telescopic airbag 23 is aligned with the lampshade 1 by the insertion and cooperation of the annular limiting block 3 and the annular limiting groove 11, so that the telescopic airbag 23 can be quickly installed on the lampshade 1. In this way, the installation speed of the telescopic airbag 23 can be improved, and the telescopic airbag 23 can be prevented from shifting.

[0038] Furthermore, such as Figure 5 and Figure 6As shown, the annular limiting block 3 is provided with a positioning groove 31, and a positioning block 12 is provided in the annular limiting groove 11 for positioning in conjunction with the positioning groove 31. Both the lampshade 1 and the mounting plate 300 are provided with mounting holes of the same specifications. The user only needs to insert the positioning block 12 into the positioning groove 31 to align the screw holes on the lampshade 1 and the connecting plate 21, thereby improving the installation speed of the lampshade 1.

[0039] It should be understood that when the telescopic airbag 23 extends, it will inevitably compress the air in the placement cavity 200. If the placement cavity 200 is a closed environment, it will increase the air pressure in the placement cavity 200, thereby increasing the difficulty of extending the telescopic airbag 23.

[0040] In view of the above situation, in some embodiments of this application, such as Figure 7 As shown, the side wall of the housing 22 has multiple vent holes 220. The placement cavity 200 is connected to the outer shell 100 through the vent holes 220, thereby reducing the difficulty of extending the telescopic airbag 23. When the telescopic airbag 23 extends, the gas in the placement cavity 200 can be discharged from the housing 22 through the vent holes 220, preventing the air pressure in the placement cavity 200 from rising and affecting the extension speed of the telescopic airbag 23, thus ensuring that the gas in the lampshade 1 will not escape to the outside due to excessive air pressure.

[0041] In this embodiment, a mounting groove 13 is provided on the top of the lampshade 1, and an annular ring 4 is installed in the mounting groove 13. An annular groove 41 is provided on the inner contour of the annular ring 4, and a light-transmitting plate 500 is installed in the annular groove 41. The light-transmitting plate 500 can protect the lighting component 101 inside the lampshade 1, and the light source inside the lighting component 101 can shine to the outside through the light-transmitting plate 500.

[0042] Furthermore, an annular pressure plate 5 for pressing the annular ring 4 is fixedly installed on the lamp cover 1. The inner diameter of the annular pressure plate 5 is smaller than the outer diameter of the annular ring 4 to ensure that the annular pressure plate 5 can limit the annular ring 4. The outer contour of the annular pressure plate 5 extends out of the outer wall of the housing 100. When the in-ground light is installed in the ground, the outer contour of the annular pressure plate 5 can fit against the surrounding ground, thereby preventing the in-ground light from being completely sunk below the ground level.

[0043] In addition, to prevent air from escaping from the lampshade 1, sealing rings are provided at the joints of the annular ring 4, the annular baffle, and the outer casing 100.

[0044] In this embodiment, a hollow base 600 is installed at the bottom of the outer shell 100. The shell 22 extends completely into the base 600, and the diameter of the base 600 is much larger than the diameter of the outer shell 100. There is a height difference between the bottom end of the shell 22 and the bottom end of the base 600. When installing the in-ground light, the base 600 can be buried underground as a pre-embedded part. This provides stable support for the lampshade 1 and prevents the surrounding soil from squeezing the shell 22, thus ensuring that the contraction of the telescopic airbag 23 is not affected by external factors.

[0045] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A pressure self-balancing ground buried lamp comprising a housing (100) and a lighting assembly (101), characterized in that, A lampshade (1) is installed inside the outer casing (100), and the lighting assembly (101) is installed inside the lampshade (1). A voltage regulating assembly (2) is connected to the lampshade (1). The voltage regulating assembly (2) includes a connecting plate (21), a housing (22), and a telescopic airbag (23). The connecting plate (21) is fixedly installed on the lower part of the lampshade (1). The connecting plate (21) and the housing (22) cooperate to form a placement cavity (200). The telescopic airbag (23) is located in the placement cavity (200) and communicates with the lampshade (1). A reset mechanism for restoring the shape of the telescopic airbag (23) is provided between the telescopic airbag (23) and the housing (22).

2. The pressure self-balancing underground light as described in claim 1, characterized in that, The reset mechanism includes a spring (400), and a mounting plate (300) is provided at the bottom of the telescopic airbag (23). One end of the spring (400) is attached to the mounting plate (300), and the other end is attached to the bottom of the housing (22).

3. The pressure self-balancing underground lamp as described in claim 2, characterized in that, The mounting plate (300) is provided with a buckle (301), and the spring (400) is fixedly installed in the buckle (301).

4. The pressure self-balancing underground lamp as described in claim 3, characterized in that, The longitudinal section of the spring (400) is trapezoidal, the narrow end of the spring (400) extends into the buckle (301), and the wide end of the spring (400) fits against the bottom of the housing (22).

5. The pressure self-balancing underground light as described in claim 1, characterized in that, The opening of the telescopic airbag (23) is sealed with an annular limiting block (3), and the bottom of the lampshade (1) is provided with an annular limiting groove (11) for cooperating with the annular limiting block (3).

6. The pressure self-balancing underground light as described in claim 5, characterized in that, The annular limiting block (3) is provided with a positioning groove (31), and the annular limiting groove (11) is provided with a positioning block (12) for limiting the position in conjunction with the limiting groove.

7. The pressure self-balancing underground lamp as described in claim 1, characterized in that, The sidewall of the housing (22) is provided with a plurality of vent holes (220).

8. The pressure self-balancing underground light as described in claim 1, characterized in that, The top of the lampshade (1) is provided with a mounting groove (13), and an annular ring (4) is installed in the mounting groove (13). The inner contour of the annular ring (4) is provided with an annular groove (41), and a light-transmitting plate (500) is installed in the annular groove (41).

9. The pressure self-balancing underground lamp as described in claim 8, characterized in that, An annular pressure plate (5) for pressing the annular ring (4) is fixedly installed on the lampshade (1), and the outer contour of the annular pressure plate (5) extends out of the outer wall of the outer shell (100).

10. The pressure self-balancing underground lamp as described in claim 1, characterized in that, The bottom of the outer shell (100) is fitted with a hollow base (600). The shell (22) extends completely into the base (600), and the diameter of the base (600) is much larger than the diameter of the outer shell (100). There is a height difference between the bottom end of the shell (22) and the bottom end of the base (600).

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