A sealing structure of a lamp and a lamp

Abstract

The utility model discloses a sealing structure and lamps and lanterns of lamps and lanterns, including the base of extrusion forming, light -transmitting spare, two groups of apron and sealing washer. The base has the accommodation groove for installing the light emitting component. The base is installed the surface on the left and right sides of accommodation groove. The light -transmitting spare covers the accommodation groove, and the light -transmitting spare extends to the two sides of accommodation groove and is overlapped with the mounting surface of the two sides of accommodation groove. The two end faces of light -transmitting spare in the direction of the two sides of accommodation groove are first, and the base has the glue groove surface in the left and right sides of light -transmitting spare, and glue groove surface sets up towards the direction of light -transmitting spare, the surface of the base between the first surface and glue groove surface of the same side of accommodation groove cooperates and forms the glue groove, and the glue groove is filled with sealant. Two groups of apron and sealing washer correspond to the head and tail two ends of accommodation groove respectively. The light -transmitting spare cover is established in the channel formed by accommodation groove, and two sealing washers cover are established in the two ends of channel and close the two end openings of channel, and the apron is connected in the base and covers sealing washer to press the sealing washer tightly on the base and light -transmitting spare.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, and in particular relates to a sealing structure and a lighting fixture. Background Technology

[0002] LED tunnel lighting equipment is a type of luminaire used for lighting inside tunnels, typically consisting of a lamp housing, a PCB board, and a lens. Existing tunnel light housings are all die-cast, resulting in relatively high costs. Utility Model Content

[0003] This utility model provides a sealing structure and a lamp fixture, the base of which is directly formed by extrusion molding, which can effectively reduce costs. After the base is made by extrusion molding, its structure is changed compared with die casting, and the original sealing method cannot be used. The sealing structure and lamp fixture of this utility model provide a new sealing structure that can be applied to the extrusion-molded base.

[0004] The technical solution of this utility model is as follows: A sealing structure for a lighting fixture, comprising: An extruded base has a receiving groove for mounting a light-emitting component; the base has mounting surfaces on the left and right sides of the receiving groove. A light-transmitting element covers the opening of the receiving groove, and the light-transmitting element extends to both sides of the receiving groove and overlaps with the mounting surfaces on both sides of the receiving groove; the two end faces of the light-transmitting element in the direction of the receiving groove are first faces, and the base has glue groove surfaces on the left and right sides of the light-transmitting element, and the glue groove surfaces are arranged facing the light-transmitting element; the first face and the glue groove surface on the same side of the receiving groove and the surface of the base between them cooperate with each other to form a glue groove, and the glue groove is filled with sealant; Two sets of cover plates and sealing gaskets correspond to the head and tail ends of the receiving groove, respectively; the light-transmitting element is placed over the receiving groove to form a channel, and the two sealing gaskets are placed over both ends of the channel and close the openings at both ends of the channel; the cover plate is connected to the base and covers the sealing gasket to press the sealing gasket tightly onto the base and the light-transmitting element.

[0005] In a sealing structure of a lamp provided in one embodiment, the cover plate is connected to the base by bolts; The cover plate is provided with a first connecting hole, and the sealing gasket is provided with a second connecting hole; the bolt thread passes through the first connecting hole and the second connecting hole and is threadedly connected to the base. Furthermore, the diameter of the second connecting hole is larger than the major diameter of the thread on the screw.

[0006] In a sealing structure of a lamp provided in one embodiment, the head of the bolt is a frustum structure, and the inner wall of the first connecting hole has at least a portion of a taper that matches the frustum structure of the bolt head; the end face of the bolt head facing the base abuts against the base, and the outer wall of the frustum structure of the bolt head abuts against the tapered inner wall of the first connecting hole.

[0007] In a sealing structure of a lamp provided in one embodiment, the first connecting hole has a tapered section and a constant diameter section, wherein the side of the tapered section with a smaller diameter is connected to the constant diameter section; and the constant diameter section is disposed close to the base.

[0008] In a sealing structure of a lamp provided in one embodiment, limiting members are provided on both sides of the receiving groove. The limiting members are connected to the base, and the limiting members abut against the surface of the light-transmitting member away from the mounting surface to press and fix the light-transmitting member to the mounting surface.

[0009] In a sealing structure of a lamp provided in one embodiment, the base is provided with positioning surfaces on both sides of the receiving groove. The positioning surfaces are located between the glue groove surface and the mounting surface on the same side, and the positioning surfaces are arranged in the direction of the receiving groove; the first surface on the light-transmitting element abuts against the positioning surface.

[0010] In a sealing structure of a lamp provided in one embodiment, the base is provided with a first abutting surface facing the same direction as the mounting surface, and the limiting member is provided with a second abutting surface, the first abutting surface and the second abutting surface abutting each other.

[0011] In a sealing structure of a lamp provided in one embodiment, the limiting member and the base are connected by screws. The screws pass through the limiting member and are threadedly connected to the base. Furthermore, the screws pass through the second abutting surface on the limiting member and the first abutting surface on the base.

[0012] In a sealing structure of a lamp provided in one embodiment, a positioning structure is provided between the base and the limiting member. The positioning structure includes a positioning groove and a positioning protrusion. One of the positioning groove and the positioning protrusion is provided on the base, and the other is provided on the limiting member. The positioning protrusion is inserted into and connected to the positioning groove.

[0013] In a sealing structure of a lamp provided in one embodiment, the limiting member is provided with an overflow groove facing the base, and the groove opening of the overflow groove is connected to the groove opening of the glue groove.

[0014] Based on the same concept, this utility model also provides a lamp, including a light-emitting component and a sealing structure of the lamp as described in any one of the above claims, wherein the light-emitting component is installed in the receiving groove.

[0015] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art: The sealing structure and lamp provided by this utility model achieve a seal between the light-transmitting component and the receiving groove on both sides of the receiving groove using sealant within the groove. The light-transmitting component covers the channel formed by the receiving groove, and sealing gaskets at both ends of the channel seal the two ends of the channel. Thus, the receiving groove, the light-transmitting component, and the sealing gaskets at both ends cooperate to form a sealed chamber, within which the light-emitting component of the lamp is housed. Therefore, the sealing structure and lamp of this utility model provide a novel sealing structure, allowing the base to be manufactured using extrusion molding, thereby reducing costs. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] Figure 1 This is a schematic diagram of the sealing structure of a lamp according to the present invention; Figure 2 This is a schematic diagram of the sealing structure (without cover plate and bolts) of a lamp according to the present invention; Figure 3 This is a schematic diagram of a sealing structure (without cover plate, bolts and sealing gasket) for a lamp according to the present invention; Figure 4 This is an exploded view of the sealing structure of a lamp according to the present invention; Figure 5 This is an enlarged schematic diagram of the sealing structure of a lamp according to the present invention on one side of the receiving groove (the cover plate and bolts are not shown in the figure); Figure 6 and Figure 7 This is an enlarged schematic diagram of the sealing structure of a lamp according to the present invention on one side of the receiving groove (the cover plate, bolts and sealing gasket are not shown in the figure); Figure 8 This is a partially enlarged schematic diagram of a cover plate according to the present invention; Figure 9 This is a schematic diagram of a bolt according to the present invention; Figure 10 This is a schematic diagram of a lamp according to the present invention.

[0018] Explanation of reference numerals in the attached figures: 1: Base; 11: Receiving groove; 12: Mounting surface; 13: Adhesive groove surface; 14: Positioning surface; 15: First abutment surface; 16: Positioning groove; 2: Light-transmitting component; 21: First side; 3: Sealing gasket; 31: Second connecting hole; 4: Cover plate; 41: First connecting hole; 411: Tapered section; 412: Constant diameter section; 5: Bolt; 51: Screw; 52: Head; 6: Limiting component; 61: Second abutment surface; 62: Positioning protrusion; 63: Glue overflow groove; 7: Screws; 8: Light-emitting components; 9: Glue tank. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0020] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0021] In the description of this utility model, the term "a" not only means "only one" but can also mean "more than one". The terms "first", "second", "third", etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "perpendicular" and "parallel" do not mean absolutely perpendicular or parallel, but can be approximately perpendicular or approximately parallel.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Example 1 See Figures 1 to 9 This embodiment provides a sealing structure for a lamp, including a base 1, a light-transmitting element 2, two sets of cover plates 4, and a sealing gasket 3.

[0024] The base 1 is a profile, and its shape is directly formed during the extrusion molding process. The orientation of the base 1 during extrusion molding is the first direction. The base 1 is formed using extrusion molding, a profile forming process that is relatively low-cost and offers good corrosion resistance. The base 1 has a receiving groove 11, which is arranged along a first direction and is a through groove; the receiving groove 11 is used to install the light-emitting component 8. The base 1 has mounting surfaces 12 on the left and right sides of the receiving groove 11 (in this document, both sides of the receiving groove 11 refer to the left and right sides of the receiving groove 11; and on the same side, the side relatively closer to the receiving groove 11 is the inner side, and the side relatively farther away from the receiving groove 11 is the outer side).

[0025] The light-transmitting element 2 covers the receiving groove 11 and extends to both sides of the receiving groove 11, overlapping with the mounting surfaces 12 on both sides of the receiving groove 11. The two end faces of the light-transmitting element 2 on both sides of the receiving groove 11 are first surfaces 21. The base 1 has adhesive groove surfaces 13 on the left and right sides of the light-transmitting element 2, with the adhesive groove surfaces 13 facing the light-transmitting element 2. The first surface 21 and the adhesive groove surface 13 on the same side of the receiving groove 11, along with the surface of the base 1 between them, cooperate to form an adhesive groove 9, which is filled with sealant. The sealant seals the overlap between the light-transmitting element 2 and the mounting surface 12, achieving a seal between the receiving groove 11 and the light-transmitting element 2 on both sides of the receiving groove 11. Furthermore, the sealant in the adhesive groove 9 not only provides a sealing function but also helps to fix the light-transmitting element 2.

[0026] Two sets of cover plates 4 and sealing gaskets 3 correspond to the head and tail ends of the receiving groove 11, respectively; that is, each end of the receiving groove 11 has a cover plate 4 and a sealing gasket 3. The light-transmitting element 2 covers the receiving groove 11 to form a channel, and the two sealing gaskets 3 are placed at both ends of the channel to close the openings at both ends of the channel, thereby achieving a seal at both ends of the receiving groove 11. The receiving groove 11, the light-transmitting element 2, and the sealing gaskets 3 at both ends cooperate to form a sealed chamber, and the light-emitting component 8 is installed in the sealed chamber.

[0027] The cover plate 4 is connected to the base 1 and covers the sealing gasket 3 to press the sealing gasket 3 firmly onto the base 1 and the light-transmitting element 2; moreover, the cover plates 4 at both ends of the base 1 in the first direction block the openings at both ends of the glue groove 9, preventing the sealant from flowing out from both ends of the glue groove 9. The connection method between the cover plate 4 and the base 1 is not limited. In this embodiment, the cover plate 4 is connected to the base 1 by bolts 5.

[0028] Specifically, the cover plate 4 has a first connecting hole 41, and the sealing gasket 3 has a second connecting hole 31; the bolt 5's shank 51 passes through the first connecting hole 41 and the second connecting hole 31 and is threadedly connected to the base 1. Moreover, the diameter of the second connecting hole 31 is larger than the large diameter of the thread on the bolt 5's shank 51. Therefore, when the bolt 5 presses the cover plate 4 and the sealing gasket 3, it will not damage the sealing gasket 3 when it passes through the sealing gasket 3, and will not affect the sealing performance of the sealing gasket 3.

[0029] Preferably, the head 52 of the bolt 5 has a frustum structure, and the inner wall of the first connecting hole 41 has at least a portion of a taper that matches the frustum structure of the head 52 of the bolt 5. The end face of the head 52 of the bolt 5 facing the base 1 abuts against the base 1, and the outer wall of the frustum structure of the head 52 of the bolt 5 abuts against the tapered inner wall of the first connecting hole 41. The bolt 5 achieves the pressing connection of the cover plate 4 onto the base 1 by the abutment between the outer wall of the frustum structure of its head 52 and the tapered inner wall of the first connecting hole 41. More specifically, the first connecting hole 41 has a tapered section 411 and a constant diameter section 412, with the smaller diameter side of the tapered section 411 connected to the constant diameter section 412; in the tapered section 411 and the constant diameter section 412 of the first connecting hole 41, the constant diameter section 412 is located close to the base 1; the diameter of the constant diameter section 412 of the first connecting hole 41 is smaller than the major diameter of the internal thread on the base 1 used for connecting with the screw 51 of the bolt 5, and the diameter of the second connecting hole 31 is smaller than the major diameter of the internal thread on the base 1 used for connecting with the screw 51 of the bolt 5.

[0030] The light-transmitting element 2 is connected to the base 1, and the specific connection method is not limited. In this embodiment, limiting elements 6 are provided on both sides of the receiving groove 11. The limiting elements 6 are connected to the base 1, and the limiting elements 6 abut against the surface of the light-transmitting element 2 away from the mounting surface 12 to press and fix the light-transmitting element 2 to the mounting surface 12.

[0031] The base 1 has positioning surfaces 14 on both sides of the receiving groove 11. The positioning surfaces 14 are located between the glue groove surface 13 and the mounting surface 12 on the same side, and are oriented towards the receiving groove 11. The first surface 21 of the light-transmitting element 2 abuts against the positioning surfaces 14. The positioning surfaces 14 on both sides of the receiving groove 11 on the base 1 position the light-transmitting element 2 in the second direction (the first direction, the second direction, and the groove depth direction of the receiving groove 11 are perpendicular to each other). The position of the light-transmitting element 2 in the first direction is positioned by the sealing gaskets 3 and the cover plates 4 at both ends. The base 1 has a first abutting surface 15 with the same orientation as the mounting surface 12, and the limiting element 6 has a second abutting surface 61. The first abutting surface 15 and the second abutting surface 61 abut against each other, and the light-transmitting element 2 overlaps on the mounting surface 12, thereby achieving the positioning of the light-transmitting element 2 in the depth direction of the receiving groove 11.

[0032] The limiting member 6 is fixed to the base 1, thereby pressing and fixing the light-transmitting member 2 to the base 1. The connection and fixing method between the limiting member 6 and the base 1 is not limited. In this embodiment, the limiting member 6 and the base 1 are connected by a screw 7; specifically, the screw 7 passes through the limiting member 6 and is threadedly connected to the base 1, and the screw 7 passes through the second abutment surface 61 on the limiting member 6 and the first abutment surface 15 on the base 1. In this embodiment, the screw 7 used for connecting the limiting member 6 and the base 1 can be the same bolt 5 described above; of course, in other embodiments, other types of screws 7 can also be used.

[0033] Preferably, a positioning structure is provided between the base 1 and the limiting member 6. The positioning structure includes a positioning groove 16 and a positioning protrusion 62. One of the positioning groove 16 and the positioning protrusion 62 is provided on the base 1, and the other is provided on the limiting member 6. The positioning protrusion 62 is inserted into and connected to the positioning groove 16, thereby positioning the base 1 and the limiting member 6. More specifically in this embodiment, the base 1 is provided with a positioning groove 16, which is arranged along a first direction, and the depth direction of the positioning groove 16 is the same as the depth direction of the receiving groove 11. The positioning protrusion 62 protrudes from the limiting member 6. The positioning protrusion 62 on the limiting member 6 is inserted into and connected to the positioning groove 16 on the base 1, thereby realizing the positioning of the limiting member 6 relative to the base 1 in a second direction. Moreover, the cooperation between the positioning protrusion 62 and the positioning groove 16 forms a U-shaped labyrinth structure, which has a certain waterproof effect.

[0034] Furthermore, the limiting member 6 is provided with an overflow groove 63 facing the base 1, and the groove opening of the overflow groove 63 is connected to the groove opening of the glue groove 9.

[0035] The sealing structure of the lamp in this embodiment has the following installation process (it should be noted that the installation process here is only a feasible illustration and not a limitation of this utility model): After the base 1 is extruded and molded, the internal threads corresponding to the bolts 5 and screws 7 are machined; the light-emitting component 8 is installed in the receiving groove 11, and then the light-transmitting component 2 is covered; the sealing gaskets 3 and cover plates 4 at both ends are installed respectively; then sealant is applied in the glue groove 9; finally, the limiting component 6 is installed.

[0036] Example 2 See Figure 10 This embodiment provides a lamp, including a light-emitting component 8 and a sealing structure as described in Embodiment 1.

[0037] The light-emitting component 8 includes a PCB board and an LED light source disposed on the PCB board. The PCB board is installed in the receiving groove 11.

[0038] In this embodiment, the light-transmitting element 2 can be glass, and the light-emitting component 8 also includes a lens that covers the LED light source and is mounted on the PCB board. In this case, the light-transmitting element 2 mainly serves to form a sealed chamber, and the glass material allows light to pass through. Of course, in other embodiments, the light-transmitting element 2 can also be used directly as a lens. In this case, the shape of the light-transmitting element 2 needs to be adjusted according to the requirements of the lens.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A sealing structure for a lamp, characterized in that, include: An extruded base having a receiving groove for mounting a light-emitting component; The base is provided with mounting surfaces on the left and right sides of the receiving groove; A light-transmitting element covers the opening of the receiving groove, and the light-transmitting element extends to both sides of the receiving groove and overlaps with the mounting surfaces on both sides of the receiving groove; the two end faces of the light-transmitting element in the direction of the receiving groove are first faces, and the base has glue groove surfaces on the left and right sides of the light-transmitting element, and the glue groove surfaces are arranged facing the light-transmitting element; the first face and the glue groove surface on the same side of the receiving groove and the surface of the base between them cooperate with each other to form a glue groove, and the glue groove is filled with sealant; Two sets of cover plates and sealing gaskets correspond to the head and tail ends of the receiving groove, respectively; the light-transmitting element is placed over the receiving groove to form a channel, and the two sealing gaskets are placed over both ends of the channel and close the openings at both ends of the channel; The cover plate is connected to the base and covers the sealing gasket to press the sealing gasket firmly onto the base and the light-transmitting element.

2. The sealing structure of the lamp according to claim 1, characterized in that, The cover plate is connected to the base by bolts; The cover plate is provided with a first connecting hole, and the sealing gasket is provided with a second connecting hole; the bolt thread passes through the first connecting hole and the second connecting hole and is threadedly connected to the base. Furthermore, the diameter of the second connecting hole is larger than the major diameter of the thread on the screw.

3. The sealing structure of the lamp according to claim 2, characterized in that, The head of the bolt is a frustum structure, and the inner wall of the first connecting hole has at least a portion of a taper that matches the frustum structure of the bolt head; the end face of the bolt head facing the base abuts against the base, and the outer wall of the frustum structure of the bolt head abuts against the tapered inner wall of the first connecting hole.

4. The sealing structure of the lamp according to claim 3, characterized in that, The first connecting hole has a tapered section and a constant diameter section, wherein the smaller diameter side of the tapered section is connected to the constant diameter section; in the tapered section and the constant diameter section of the first connecting hole, the constant diameter section is disposed close to the base.

5. The sealing structure of the lamp according to claim 1, characterized in that, Limiting members are provided on both sides of the receiving groove. The limiting members are connected to the base and abut against the surface of the light-transmitting member away from the mounting surface to press and fix the light-transmitting member to the mounting surface.

6. The sealing structure of the lamp according to claim 5, characterized in that, The base is provided with positioning surfaces on both sides of the receiving groove. The positioning surfaces are located between the glue groove surface and the mounting surface on the same side, and the positioning surfaces are arranged in the direction of the receiving groove. The first surface on the light-transmitting element abuts against the positioning surface.

7. The sealing structure of the lamp according to claim 5, characterized in that, The base is provided with a first abutting surface facing the same direction as the mounting surface, and the limiting member is provided with a second abutting surface, the first abutting surface and the second abutting surface abutting each other.

8. The sealing structure of the lamp according to claim 7, characterized in that, The limiting member and the base are connected by screws. The screws pass through the limiting member and are threadedly connected to the base. The screws also pass through the second abutting surface on the limiting member and the first abutting surface on the base.

9. The sealing structure of the lamp according to claim 5, characterized in that, A positioning structure is provided between the base and the limiting member. The positioning structure includes a positioning groove and a positioning protrusion. One of the positioning groove and the positioning protrusion is provided on the base, and the other is provided on the limiting member. The positioning protrusion is inserted into and connected to the positioning groove.

10. The sealing structure of the lamp according to claim 5, characterized in that, The limiting member is provided with an overflow groove facing the base, and the opening of the overflow groove is connected to the opening of the glue groove.

11. A lamp, characterized in that, The light-emitting component includes a light-emitting element and a sealing structure for a luminaire as described in any one of claims 1 to 10, wherein the light-emitting component is installed within the receiving groove.

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