Down lamp with waterproof structure

Abstract

The down lamp with the waterproof structure comprises a lamp shell, a face ring shell and a light-transmitting cover, a lamp panel installation area and an annular groove are formed in the center of the lower end of the lamp shell, the face ring shell is fixed to the lamp shell through screws, and the light-transmitting cover is limited and fixed between the face ring shell and the lamp shell; the light-transmitting cover comprises a light-transmitting wafer and a side ring piece, and the upper end of the side ring piece is inserted into the circular ring groove to form nested positioning; a sealing ring is arranged on the inner side of the upper end of the lantern ring; when the face ring shell is installed, the upper limiting ejecting column ejects the lantern ring, so that the sealing ring abuts against the connecting position of the side ring piece and the lamp shell in a sealed mode. According to the structure, double sealing is formed by nesting, positioning and matching the lantern ring and the sealing ring, water vapor permeation is effectively blocked, and the waterproof grade is improved; the sealing pressure is uniform through the limiting jacking column, and the situation that sealing is not in place is avoided; the light-transmitting cover is limited by nesting and pressing and is fixed by matching with screws, so that the integral connection is firm, long-term vibration and temperature difference can be resisted, and the light-transmitting cover is not easy to shift and loosen.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of down lamp, especially a down lamp with waterproof structure. BACKGROUND

[0002] As a kind of embedded lighting lamp, down lamp is widely used in family decoration, commercial place, public area and other types of scenes due to its hidden installation, elegant and handsome, soft light characteristics.With the continuous expansion of the application range of down lamp, its use environment is increasingly complex, especially in humid environment (such as bathroom, kitchen) or easy to contact water vapor scene, water vapor is easily penetrated into the lamp body along the cooperation gap between face cover and lamp body, resulting in internal electrical components of lamp body short circuit, corrosion, light decay and other problems, seriously affect the service life and use safety of down lamp, even cause safety hazard.

[0003] To solve the waterproof problem of down lamp, the waterproof structure of existing down lamp is mostly that face ring directly compresses light-transmitting cover, and sealing is realized by single-layer plane sealing ring, but the sealing surface of this kind of waterproof structure is single, and water vapor is easily penetrated into the lamp body along the cooperation gap between light-transmitting cover and lamp shell due to aging and deformation during long-term use, leading to sealing failure. SUMMARY

[0004] The utility model aims at at least one of the problems existing in the prior art to some extent, and therefore the utility model provides a down lamp with reliable sealing, waterproof and precise assembly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A down lamp with waterproof structure, comprising lamp shell, face ring shell and light-transmitting cover arranged at the lower end of lamp shell, the lower end of lamp shell is provided with lamp panel mounting area for mounting lamp panel, circular groove is arranged on lamp panel mounting area, face ring shell is fixedly connected with lamp shell by a plurality of screws, and light-transmitting cover is limited and fixed between lamp shell and face ring shell by face ring shell, light-transmitting cover comprises light-transmitting disc and side ring piece, the upper end of side ring piece is inserted into circular groove, sleeve ring is further arranged on the outer side of side ring piece, sealing ring is arranged on the upper end of inner side edge of sleeve ring, a plurality of limiting top posts are further arranged on face ring shell, when face ring shell and lamp shell are mounted and connected, limiting top post is pushed on sleeve ring, so that sealing ring is sealed and abuts against the connecting part between side ring piece and lamp shell.

[0007] In some embodiments, the face ring shell comprises face ring and circular ring baffle arranged on the upper end of face ring, a plurality of screw columns matched with screws are arranged on the inner side of circular ring baffle along circumference.

[0008] In some embodiments, the number of the limiting top posts corresponds to the number of the screw posts, and the limiting top posts are arranged on the screw posts.

[0009] In some embodiments, the upper end of the limiting top post is provided with a first inclined surface, and the lower end of the sleeve ring is provided with a second inclined surface matched with the first inclined surface.

[0010] In some embodiments, a first mounting groove is arranged on the outer edge of the lower end of the light-transmitting disc, and the inner edge of the face ring is mounted in the first mounting groove.

[0011] In some embodiments, a second mounting groove is arranged on the outer edge of the lower end of the lamp shell, and the upper end of the circular ring baffle is provided with a positioning ring mounted in the second mounting groove.

[0012] In some embodiments, a sealing gasket is further arranged in the circular ring groove.

[0013] In some embodiments, spring buckles are symmetrically arranged on the outer side of the lamp shell.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The side ring piece of the light-transmitting cover is inserted into the circular ring groove of the lamp shell to form nested positioning, and the sleeve ring and the sealing ring are combined to realize annular wrapping type sealing, so that the double sealing structure effectively blocks the water vapor infiltration path, and the waterproof level is higher.

[0016] 2. The face ring shell is directionally pushed against the sleeve ring through the limiting top post, so that the sealing ring is stably abutted at the connection between the side ring piece and the lamp shell, the sealing pressure is uniform and controllable, and local pressure loss or sealing failure is avoided.

[0017] 3. The light-transmitting cover adopts nested and compressed double limiting, and the face ring shell is fixed by screws, so that the overall connection is firm, and displacement and loosening are not easy to occur under long-term vibration and temperature difference environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model tube lamp.

[0019] Figure 2 It is a sectional structure schematic diagram of the utility model tube lamp.

[0020] Figure 3 It is an enlarged schematic diagram of A of the utility model. Figure 2

[0021] Figure 4 It is an exploded structure schematic diagram of the utility model tube lamp.

[0022] Figure 5 ​The utility model discloses a structure schematic view of the lamp shell.

[0023] Figure 6 The utility model discloses a structure schematic view of the surface ring shell.

[0024] Figure 7 The utility model discloses a structure schematic view of the light-transmitting cover. DETAILED DESCRIPTION

[0025] The following detailed implementation provides various different embodiments or examples for implementing the utility model. Of course, these are only examples and are not intended to be limiting. In addition, repeated reference numbers may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model, and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0026] As shown in Figures 1-7 A down lamp with waterproof structure, including lamp shell 1, the surface ring shell 2 of being located the lower end of lamp shell 1 and the light-transmitting cover 3, the lower end center of lamp shell 1 is provided with the lamp plate installation area 4 for installing lamp plate 10, is provided with annular recess 5 on the lamp plate installation area 4, the surface ring shell 2 is fixedly connected with lamp shell 1 through several screws 11, and the light-transmitting cover 3 can be fixed between lamp shell 1 and surface ring shell 2 by the surface ring shell 2, the light-transmitting cover 3 includes light-transmitting round sheet 6 and side ring sheet 7, the upper end of side ring sheet 7 is inserted into annular recess 5, the outer side of side ring sheet 7 is also provided with sleeve ring 8, the upper end inner side edge of sleeve ring 8 is provided with sealing ring 9, still be provided with several limit top pillar 12 on the surface ring shell 2, when the surface ring shell 2 is installed with lamp shell 1, limit top pillar 12 is jacked on sleeve ring 8, to make sealing ring 9 sealed abutment between side ring sheet 7 and the connecting place of lamp shell 1.

[0027] During assembly, the upper end of the side ring piece 7 of the light-transmitting cover 3 is precisely inserted into the circular groove 5 on the lamp panel mounting area 4 of the lamp housing 1 to achieve preliminary nesting positioning of the light-transmitting cover 3 and the lamp housing 1, ensure the precise installation position of the light-transmitting cover 3, and avoid assembly deviation affecting the subsequent sealing effect. Then, the sleeve ring 8 is sleeved outside the side ring piece 7 of the light-transmitting cover 3, so that the sleeve ring 8 is tightly sleeved outside the side ring piece 7, and the sealing ring 9 on the upper end of the sleeve ring 8 is accurately corresponding and aligned with the outer wall of the side ring piece 7 and the peripheral position of the circular groove 5 of the lamp housing 1, completing the sealing pretreatment. The face ring shell 2 is aligned with the lower end of the lamp housing 1, and the face ring shell 2 is fixedly connected with the lamp housing 1 through a plurality of screws 11. During the process of gradually tightening the screws 11, the face ring shell 2 slowly approaches the lamp housing 1. During the approaching process of the face ring shell 2, a plurality of limiting top pillars 12 provided by the face ring shell 2 synchronously push the sleeve ring 8, so that the sleeve ring 8 moves upward along the outer wall of the side ring piece 7, and then drives the sealing ring 9 on the upper end of the sleeve ring 8 to be extruded. With the screws 11 being completely tightened, the face ring shell 2 is fixed in place with the lamp housing 1, the pushing force of the limiting top pillars 12 on the sleeve ring 8 reaches a stable state, at this time, the sealing ring 9 is tightly extruded and sealed against the connection between the side ring piece 7 and the lamp housing 1, completely blocking the gap through which water vapor may penetrate.

[0028] After assembly is completed, the light-transmitting cover 3 is stably positioned and fixed between the lamp housing 1 and the face ring shell 2, which not only realizes protection of the lamp panel 10, but also realizes reliable waterproofing through the double structure of nesting positioning and sealing ring extrusion. The light generated by the lamp panel 10 during work can be smoothly emitted through the light-transmitting circular piece 6 of the light-transmitting cover 3, meeting the lighting demand, while the sealing ring 9 is always in a stable and tightly extruded state, effectively blocking water vapor from penetrating into the inside of the lamp body for a long time, ensuring normal work of the electrical elements such as the lamp panel 10, and prolonging the service life of the lamp.

[0029] Referring to FIGS. 1 to 4, Figure 2 , Figure 3 , Figure 6 as shown, the face ring shell includes a face ring and a circular baffle provided on the upper end of the face ring, a plurality of screw columns matched with the screws are provided on the inner side of the circular baffle along the circumference, the number of the limiting top pillars corresponds to the number of the screw columns, and the limiting top pillars are provided on the screw columns.

[0030] Specifically, the face ring shell 2 is composed of a face ring 21 and a circular baffle 22 provided on the upper end of the face ring 21. The circular baffle 22 serves as a transition structure for connecting the face ring 21 and the lamp housing 1, plays a role in positioning and force transmission, provides an installation carrier for the screw columns 23 and the limiting top pillars 12, and ensures the stable structure of the face ring shell 2. A plurality of screw columns 23 are uniformly provided on the inner side of the circular baffle 22 along the circumferential direction. The positions of the screw columns 23 accurately correspond to the screw mounting positions on the lamp housing 1, and the core role of the screw columns 23 is to cooperate with the screws 11 to realize the fixed connection of the face ring shell 2 and the lamp housing 1, and to provide an installation basis for the limiting top pillars 12.

[0031] When assembling, the face ring shell 2 is aligned with the lower end of the lamp shell 1, the circular ring baffle 22 is attached to the bottom of the lamp shell 1, the screw 11 passes through the screw column 23 and is screwed with the lamp shell 1, and as the screw 11 is gradually tightened, the screw column 23 drives the face ring 21 and the circular ring baffle 22 to move synchronously towards the lamp shell 1. During the movement of the screw column 23, the limiting top column 12 provided thereon moves synchronously to accurately push the sleeve ring 8, so that the sleeve ring 8 moves upward along the outer wall of the side ring piece 7 of the light-transmitting cover 3, and then presses the sealing ring 9 on the upper end of the sleeve ring 8. When the screw 11 is completely tightened, the screw column 23 is fixed in place with the lamp shell 1, and the circular ring baffle 22 limits the face ring 21 to avoid excessive pressing of the light-transmitting cover 3; at the same time, the pushing force of the limiting top column 12 to the sleeve ring 8 reaches a stable state, ensuring that the sealing ring 9 is tightly attached to the connection between the side ring piece 7 and the lamp shell 1, achieving reliable sealing and blocking the water vapor infiltration path.

[0032] Referring to Figure 3 As shown, the upper end of the limiting top column 12 is provided with a first inclined surface 41, and the lower end of the sleeve ring 8 is provided with a second inclined surface 42 matched with the first inclined surface 41. Thus, through the close fit of the first inclined surface 41 and the second inclined surface 42, the pushing force of the limiting top column 12 to the sleeve ring 8 can be stably transmitted, so that the sleeve ring 8 can move smoothly upward along the outer wall of the side ring piece 7, and then drive the sealing ring 9 to be uniformly pressed, always tightly attached to the connection between the side ring piece 7 and the lamp shell 1, avoiding the problems of sealing gap and sealing failure caused by uneven transmission of the pushing force, further strengthening the waterproof reliability, and ensuring that water vapor cannot penetrate into the lamp body along the matching gap.

[0033] Referring to Figures 1-3 As shown, a first installation recess 51 is provided on the outer edge of the lower end of the light-transmitting disc 6, and the inner edge of the face ring 21 is installed in the first installation recess 51. A second installation recess 61 is provided on the outer edge of the lower end of the lamp shell 1, and a positioning ring 62 is provided on the upper end of the circular ring baffle 22, which is installed in the second installation recess 61.

[0034] The first installation recess 51 is accurately matched with the inner edge of the face ring 21, which can realize accurate positioning of the face ring 21 and the light-transmitting disc 6, avoid circumferential deviation and vertical misalignment of the face ring 21 and the light-transmitting cover 3, and ensure uniform limiting of the face ring 21 to the light-transmitting cover 3; the second installation recess 61 is accurately matched with the positioning ring 62, which can realize accurate positioning of the face ring shell 2 and the lamp shell 1, prevent deviation of the face ring shell 2 during assembly, ensure accurate positioning of the screw column 23 and the screw 11, and the limiting top column 12 and the sleeve ring 8, greatly reduce assembly deviation, and improve assembly qualification rate.

[0035] In addition, through the precise matching of the first mounting groove 51 and the face ring 21, and the second mounting groove 61 and the positioning ring 62, the assembly positions of the face ring shell 2, the light-transmitting cover 3 and the lamp shell 1 are stable, the power transmission of the limiting top column 12 is avoided due to the part deviation, and then the sealing ring 9 can be always accurately and tightly abutted on the connecting position of the lamp shell 1 and the side ring piece 7, the sealing gap caused by the assembly deviation is avoided, the waterproof sealing effect is further strengthened, and the water vapor infiltration path is blocked.

[0036] Referring to Figure 3 As shown in the circular groove 5, the sealing gasket 71 is further arranged in the circular groove 5, and forms a double sealing structure with the sealing ring 9 on the original sleeve ring 8, wherein the sealing gasket 71 is directly attached between the upper end of the side ring piece 7 and the inner wall of the circular groove 5, and blocks the water vapor infiltration path along the cooperation gap between the side ring piece 7 and the circular groove 5, cooperates with the abutting sealing of the sealing ring 9, forms a double protection of "inside sealing gasket + outside sealing ring", completely eliminates the water vapor infiltration hidden danger, and significantly improves the waterproof grade of the lamp.

[0037] In the utility model, spring buckles 81 are symmetrically arranged outside the lamp shell 1.

[0038] The basic principle and main characteristics of the utility model and the advantages of the utility model are shown and described in combination with the drawings, and the skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A downlight with a waterproof structure, comprising a lamp housing (1), a ring shell (2) disposed at the lower end of the lamp housing (1), and a light-transmitting cover (3), characterized in that: The lower center of the lamp housing (1) is provided with a lamp plate mounting area (4) for mounting the lamp plate (10). A circular groove (5) is provided on the lamp plate mounting area (4). The face ring shell (2) is fixedly connected to the lamp housing (1) by a number of screws (11), and the light-transmitting cover (3) can be limited and fixed between the lamp housing (1) and the face ring shell (2) through the face ring shell (2). The light-transmitting cover (3) includes a light-transmitting circular plate (6) and a side ring plate (7). The side ring plate (7) The upper end is inserted into the circular groove (5), and a collar (8) is also sleeved on the outside of the side ring (7). A sealing ring (9) is provided on the inner edge of the upper end of the collar (8). Several limiting top posts (12) are also provided on the face ring shell (2). When the face ring shell (2) is installed and connected to the lamp shell (1), the limiting top posts (12) push against the collar (8), so that the sealing ring (9) seals against the connection between the side ring (7) and the lamp shell (1).

2. A downlight with a waterproof structure according to claim 1, characterized in that: The face ring shell (2) includes a face ring (21) and a circular baffle (22) located at the upper end of the face ring (21). A plurality of screw posts (23) that cooperate with screws (11) are arranged along the circumference on the inner side of the circular baffle (22).

3. A downlight with a waterproof structure according to claim 2, characterized in that: A number of the limiting top posts (12) are provided corresponding to the number of the screw posts (23), and the limiting top posts (12) are provided on the screw posts (23).

4. A downlight with a waterproof structure according to claim 1, characterized in that: The upper end of the limiting top post (12) is provided with a first inclined surface (41), and the lower outer side of the collar (8) is provided with a second inclined surface (42) that cooperates with the first inclined surface (41).

5. A downlight with a waterproof structure according to claim 2, characterized in that: A first mounting groove (51) is provided on the outer edge of the lower end of the light-transmitting disc (6), and the inner edge of the face ring (21) is installed in the first mounting groove (51).

6. A downlight with a waterproof structure according to claim 2, characterized in that: A second mounting groove (61) is provided on the lower outer edge of the lamp housing (1), and a positioning ring (62) is provided on the upper end of the circular baffle (22). The positioning ring (62) is installed in the second mounting groove (61).

7. A downlight with a waterproof structure according to claim 1, characterized in that: A sealing gasket (71) is also provided inside the annular groove (5).

8. A downlight with a waterproof structure according to claim 1, characterized in that: Spring buckles (81) are symmetrically arranged on the outside of the lamp housing (1).

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