Underground lamp

By setting positioning grooves and reinforcing ribs on the base of the in-ground light, the problems of cumbersome fixing of the diffusion film and the inability to fix it in the center are solved, realizing simple, precise and firm fixing of the diffusion film, and improving the installation efficiency and lighting quality of the in-ground light.

CN223992178UActive Publication Date: 2026-03-13GUANGDONG PAK CORP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing methods for fixing the diffuser film in in-ground lights are cumbersome and prone to problems such as not being able to fix it in the center.

Method used

A positioning groove is set on the base of the in-ground light. By inserting the folded edge of the diffuser film into the positioning groove and using reinforcing ribs for fixation, the diffuser film can be accurately centered and positioned.

Benefits of technology

This enables simple, precise, and secure fixing of the diffusion film, improving installation efficiency and the overall quality of lighting equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an underground lamp, which comprises a base, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source, a light source and a light source, the main plate is arranged in the open slot; the light guide plate is arranged in the accommodating cavity; a light source plate disposed on a side surface of the light guide plate; the first diffusion film is arranged above the light guide plate, the end part of the first diffusion film is bent downwards to form a bent part, and the bent part is clamped into the positioning groove during installation; the tempered glass is arranged above the supporting part; and the surface cover is detachably mounted at the opening at the upper end of the base. According to the underground lamp base, the positioning groove is formed in the underground lamp base, the bent part is formed on the edge of the first diffusion film, and when the first diffusion film is assembled, the bent part is aligned with the positioning groove of the base and clamped into the positioning groove, so that the first diffusion film is positioned, centered positioning and gradual installation are achieved, and positioning is accurate and firm.
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Description

Technical Field

[0001] This utility model relates to the field of lighting, and more specifically, to an in-ground light. Background Technology

[0002] In-ground lights are lighting devices installed underground, widely used in crowded places such as shopping malls, plazas, restaurants, and office buildings. They are usually equipped with directional signs for crowd control. Existing in-ground lights typically consist of a stainless steel panel, tempered glass, a diffuser film, a light guide plate, a light source board, and a base box. The diffuser film of this type of in-ground light needs to be centered and fixed inside the light body to ensure uniform light output. However, most products on the market currently fix the diffuser film by directly attaching it to the tempered glass with double-sided tape or transparent adhesive, and then installing the tempered glass into the light body. This method of fixing the diffuser film is not only cumbersome but also difficult to guarantee quality, easily resulting in the diffuser film not being centered and fixed properly.

[0003] Therefore, there is an urgent need for an in-ground lamp that facilitates the centered fixation of the diffusion film to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to propose an in-ground light that aims to solve the technical problem that the existing diffusion film fixing method is cumbersome and prone to failure to be centered.

[0005] To achieve the above objectives, this utility model proposes an in-ground light, comprising:

[0006] The base has an open upper end and an opening groove at the bottom. The inner wall is provided with a support part, which together with the bottom end forms an accommodating cavity. The support part is provided with a positioning groove.

[0007] The motherboard is configured within the opening slot;

[0008] A light guide plate is disposed within the accommodating cavity;

[0009] A light source board is disposed on the side of the light guide plate;

[0010] A first diffusion film is disposed above the light guide plate. The end of the first diffusion film is bent downward to form a bent portion. During installation, the bent portion is inserted into the positioning groove.

[0011] Tempered glass is disposed above the support portion;

[0012] The cover is detachably installed at the opening at the top of the base.

[0013] This utility model features a positioning groove on the base of an in-ground light. By folding the edge of the first diffusion film to form a bent portion, the bent portion is aligned with the positioning groove of the base and inserted during assembly of the first diffusion film, thereby positioning the first diffusion film and achieving centered positioning. This design is simple to install and provides precise and secure positioning.

[0014] Preferably, the positioning groove is provided with reinforcing ribs. The use of reinforcing ribs increases the friction with the bending portion, making the first diffusion membrane more securely fixed.

[0015] Preferably, there are two positioning grooves, which are arranged opposite each other, and two bending portions, located at both ends of the first diffusion membrane. The symmetrical arrangement of the positioning grooves and bending portions ensures a more stable installation.

[0016] Preferably, the in-ground light further includes a sign plate disposed between the tempered glass and the face cover, the face cover having a hollowed-out sign mounting hole, and the surface of the sign plate having a protrusion that can be embedded in the sign mounting hole.

[0017] Preferably, the accommodating cavity is provided with a retaining slot, and a wire guide groove connects the retaining slot and the opening slot. The light source plate is placed in the retaining slot and faces the side of the light guide plate. The light source plate is set in the retaining slot, resulting in a compact and ingenious structure that is not easily dislodged.

[0018] Preferably, the opening groove is provided with a wiring groove, and the wiring groove is provided with a wiring hole. An external power cable is connected to the motherboard through the wiring groove and the wiring hole.

[0019] Preferably, a second diffusion film is further disposed within the accommodating cavity, and the second diffusion film is located below the light guide plate. The second diffusion film can reflect light, prevent light loss, and improve illumination efficiency.

[0020] Preferably, the support portion is provided with a glue storage tank and a diversion tank, with the diversion tank located inside the glue storage tank. During installation, silicone sealant is evenly applied into the glue storage tank, and any excess sealant that overflows when fixing the tempered glass enters the diversion tank, preventing contamination of the light guide plate and thus affecting the illumination of the light source.

[0021] Preferably, the base is further provided with a fixing part, the fixing part having a plurality of screw holes, and the cover having studs corresponding to the screw holes one by one. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is an exploded structural diagram of the in-ground lamp in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the base structure in an embodiment of the present utility model;

[0025] Figure 3 This is a partial cross-sectional view of the base in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the first diffusion membrane in an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the face cover in an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the signboard in an embodiment of this utility model.

[0029] In the attached diagram: 10-base, 11-opening groove, 111-wiring groove, 112-wiring hole, 12-support part, 121-positioning groove, 122-reinforcing rib, 123-glue storage tank, 124-diverting groove, 13-accommodating cavity, 131-slot, 14-wire passage groove, 15-fixing part, 151-screw hole, 20-main board, 30-light source board, 40-second diffusion film, 50-light guide plate, 60-first diffusion film, 61-bending part, 70-tempered glass, 80-marking plate, 81-protrusion, 90-face cover, 91-marking mounting hole, 92-stud.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In addition, the term "comprising" and any variations thereof mean "at least comprising."

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0035] like Figures 1-6 The in-ground light of this embodiment includes a circular base 10. It should be noted that the shape of the base 10 is not limited to the shape described in this embodiment; it can also be square, hemispherical, or other shapes, depending on actual needs. Figure 2 As shown, the upper end of the base 10 is open, and the cover 90 is detachably installed at the open end of the base 10. It should be noted that the cover 90 and the base 10 can be connected and fixed using known methods. In this embodiment, the base 10 also has a fixing part 15, on which several screw holes 151 are provided. Figure 5 As shown, the faceplate 90 has studs 92 corresponding to the screw holes 151 on its underside. The faceplate 90 and the base 10 are detachably installed and removed by screws. Typically, the faceplate 90 can be made of stainless steel. In some embodiments, the portion of the faceplate 90 corresponding to the base 10 can be made of a light-transmitting material. The outer periphery of the faceplate 90 is made of stainless steel and detachably connected to the base 10 (not shown in the figure). In this embodiment, as... Figure 5 and Figure 6As shown, the faceplate 90 is made entirely of stainless steel, with a hollowed-out sign mounting hole 91 in the center. The in-ground light also includes a sign plate 80 installed between the tempered glass 70 and the faceplate 90. The surface of the sign plate 80 has a protrusion 81 that can be embedded into the sign mounting hole 91. In this embodiment, the protrusion 81 of the sign plate 80 matches the shape of the sign mounting hole 91 of the faceplate 90. It should be noted that the sign plate 80 can be a single piece or multiple separate pieces. In this embodiment, to save materials, the sign plate 80 consists of two separate modules. In some specific applications, the sign plate 80 can also be a single circular plate.

[0036] like Figure 2 As shown, the bottom end of the base 10 has an opening groove 11 facing downwards. The main board 20 is detachably installed in the opening groove 11. In this embodiment, the opening groove 11 has a wiring groove 111 and a wiring hole 112. Specifically, the wires (not shown in the figure) connected to the main board 20 can be pulled out to the outside of the base 10 through the wiring groove 111 and the wiring hole 112 to connect to the external power supply. The inner wall of the base 10 is provided with a support part 12, which is used to support the tempered glass 70. It is usually sealed and fixed with glass glue. However, in the prior art, when using glass glue for sealing and fixing, due to the uncontrollable amount of glue, excess glass glue inevitably overflows into the lamp body. The overflowing glass glue can easily contaminate the light guide plate or diffuser film, causing poor conditions such as shadows in the light output. In this embodiment, as Figure 2 and Figure 3 As shown, the support portion 12 is provided with a glue storage tank 123 and a diversion channel 124, with the diversion channel 124 located inside the glue storage tank 123. It can be understood that when installing the tempered glass 70, glass glue is evenly applied into the glue storage tank 123, and the tempered glass 70 is fixed to the support portion 12. Any excess glass glue that overflows under pressure will enter the diversion channel 124, preventing it from overflowing onto the light guide plate or diffuser film, effectively avoiding shadows from the emitted light.

[0037] like Figure 1 and Figure 2 The support portion 12 and the bottom end of the base 10 together form a receiving cavity 13, in which a light guide plate 50 is detachably installed; a light source plate 30 is installed on the side of the light guide plate 50; in this embodiment, a locking position 131 is provided in the receiving cavity 13, and a wire passage groove 14 is provided between the locking position 131 and the opening groove 11. The light source plate 30 is placed in the locking position 131 and faces the side of the light guide plate 50. The wires connecting the light source plate 30 and the main board 20 can be placed in the wire passage groove 14. Figures 1-4The first diffusion film 60 is installed above the light guide plate 50. The end of the first diffusion film 60 is bent downwards to form a bent portion 61. The supporting portion 12 has a positioning groove 121. When installing the first diffusion film 60, the bent portion 61 is aligned with the positioning groove 121 and inserted to achieve precise positioning. To ensure stable installation of the first diffusion film 60, multiple sets of bent portions 61 and positioning grooves 121 can be configured, such as... Figure 4 As shown, both ends of the first diffusion membrane 60 are provided with bent portions 61. Correspondingly, the supporting portion 12 has two opposing positioning grooves 121. The two bent portions 61 are respectively inserted into the two positioning grooves 121 to facilitate precise positioning of the first diffusion membrane 60. In this embodiment, the positioning grooves 121 are also provided with reinforcing ribs 122 to facilitate fixing the bent portions 61 and prevent them from easily coming out.

[0038] like Figure 1 In this embodiment, a second diffusion film 40 is also installed in the accommodating cavity 13. The second diffusion film 40 is located below the light guide plate 50 and can reflect light to prevent light loss and improve lighting efficiency.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A ground light, characterized in that The utility model relates to a ground burying lamp, including: Base (10), the upper end is open, the bottom end is provided with opening groove (11) downward, the inner wall is provided with the support part (12), the support part (12) is surrounded with bottom end and forms the accommodation cavity (13), the support part (12) is provided with the positioning slot (121); Mainboard (20) is arranged in opening groove (11); Light guide plate (50) is arranged in the accommodation cavity (13); Light source board (30) is arranged on the side of light guide plate (50); First diffusion film (60) is arranged above light guide plate (50), and the end of first diffusion film (60) is bent downward to form bending part (61), and when mounting, bending part (61) is clamped into positioning slot (121); Tempered glass (70) is arranged above support part (12); Face cover (90) is detachably mounted on the open end of base (10).

2. The ground set light of claim 1, wherein, Reinforcing ribs (122) are arranged in the positioning slot (121).

3. The in-ground light of claim 1, wherein The positioning slot (121) is provided with two positioning slots (121), and the two positioning slots (121) are oppositely arranged, and the bending part (61) is provided with two bending parts (61) respectively located at the two ends of the first diffusion film (60).

4. The in-ground light of claim 1, wherein The ground burying lamp further comprises a sign plate (80) arranged between the tempered glass (70) and the face cover (90), the face cover (90) is provided with a hollow sign mounting hole (91), and the sign plate (80) is provided with a protruding portion (81) capable of being embedded in the sign mounting hole (91).

5. The in-ground light of claim 1, wherein The accommodation cavity (13) is provided with a clamping site (131), and a wire slot (14) is arranged between the clamping site (131) and the opening groove (11), the light source board (30) is placed in the clamping site (131) and faces the side of the light guide plate (50).

6. The in-ground light of claim 1, wherein The opening groove (11) is provided with a wiring slot (111), and the wiring slot (111) is provided with a wiring hole (112).

7. The in-ground light of claim 1, wherein The accommodation cavity (13) is further provided with a second diffusion film (40), and the second diffusion film (40) is located below the light guide plate (50).

8. The in-ground light of claim 1, wherein, The support part (12) is provided with a glue storage groove (123) and a shunt groove (124), and the shunt groove (124) is located on the inner side of the glue storage groove (123).

9. The in-ground light of claim 1, wherein, The base (10) is further provided with a fixing portion (15), a plurality of screw holes (151) are formed in the fixing portion (15), and the face cover (90) is provided with a stud (92) corresponding to the screw hole (151).