CN217482583U

CN217482583U - Fire-proof down lamp

Info

Publication number: CN217482583U
Application number: CN202122869631.5U
Authority: CN
Inventors: 黄良春
Original assignee: Foshan Qinzhi Photoelectric Co ltd
Current assignee: Foshan Qinzhi Photoelectric Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-09-23
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a fireproof down lamp, which relates to the technical field of lamps and lanterns and comprises a lamp barrel, wherein the upper end of the lamp barrel is provided with a wire passing hole, and the lower end of the lamp barrel is connected with a face cover in a rotating and clamping way; the radiator is vertically arranged on the upper end face of the lamp tube and connected with the upper end face of the lamp tube, the lower end of the radiator is provided with a mounting groove, and a fireproof cotton ring concentrically arranged with the wire passing hole is arranged in the mounting groove. Adopt above-mentioned technical scheme, because radiator fixed connection is at the up end of a lamp section of thick bamboo, be equipped with the line hole in a lamp section of thick bamboo upper end, the lower extreme of radiator corresponds the position of crossing the line hole and is equipped with the installation cavity, be equipped with in the installation cavity with cross the cotton circle of fire prevention that is used for protecting the wire that the line hole set up with one heart, the light source subassembly sets up in the installation cavity of a lamp section of thick bamboo, it links to each other to cover rotatory block through the face, make, overall structure connects compactly, equipment convenient and fast, under the use prerequisite that reduces the cotton material of fire prevention, can also carry out effectual heat-resisting protection to the wire, effectively reduce manufacturing cost, the profit space of the product is improved.

Description

Fire-proof down lamp

Technical Field

The utility model relates to the technical field of lamps and lanterns, in particular to fire prevention down lamp.

Background

A fire resistant down light is one of the down light constructions, from the definition in the uk market, which has a higher fire resistance rating than conventional down lights, and whose integral components pass the 60 minute or 90 minute fire resistance test of the uk BS476-21 standard.

However, in the prior art, the housing of the fireproof down lamp is made of high-temperature-resistant metal material, the housing is sleeved on the lamp body, and a large piece of fireproof cotton for protecting the circuit is arranged between the lamp body and the housing, so that the down lamp is large in overall size, not compact in structure and too high in manufacturing material cost.

SUMMERY OF THE UTILITY MODEL

To the above problem, the to-be-solved technical problem of the utility model provides a fire prevention down lamp to the down lamp overall structure who solves among the prior art is not compact, problem that manufacturing cost is high.

In order to solve the above problem, the technical scheme of the utility model is that:

a fire resistant downlight, comprising: the lamp comprises a lamp barrel, wherein an installation cavity with a downward opening is formed in the lamp barrel, a light source assembly is arranged in the installation cavity, a wire passing hole communicated with the installation cavity is formed in the upper end of the lamp barrel, and the lower end of the lamp barrel is connected with a surface cover in a rotating clamping manner; the radiator is vertically arranged on the upper end face of the lamp tube, a mounting groove with a downward opening is formed in the lower end of the radiator, a fireproof cotton ring concentrically arranged with the wire passing hole is arranged in the mounting groove, a cavity communicated with the mounting groove is formed in the radiator, and a connecting hole connected with the cavity is formed in the radiator.

Further, the light source subassembly is including setting gradually LED light source module, anti-light cup and the integral type lens of installation intracavity, the peripheral edge of integral type lens lower extreme is equipped with to the cyclic annular portion that the lamp section of thick bamboo upper end direction extends, the annular portion be equipped with the ring channel, the ring channel endotheca be equipped with the elastic component that installation intracavity wall offseted.

Further, the elastic component is a silica gel sealing ring.

Furthermore, the lower end of the lamp barrel is provided with a horizontal outward-extending flanging along the radial direction of the opening of the lamp barrel, the outer side of the flanging is provided with a first connecting structure, the surface cover is provided with a second connecting structure, and the surface cover covers the flanging and the peripheral edge of the lower end of the integrated lens and is connected with the first connecting structure in a rotating and clamping manner through the second connecting structure.

Furthermore, the first connecting structure comprises a gap arranged at the outer edge of the outward turned edge in a surrounding mode at intervals, a bending blocking part is arranged on one side edge of the gap, an annular extending part perpendicular to the annular extending part is arranged on the outer edge of the face cover, a plurality of second connecting structures extending towards the inner diameter direction of the second connecting structure are arranged on the inner side of the annular extending part in a surrounding mode, and the second connecting structures are blocks capable of penetrating through the gap.

Furthermore, the quantity of breach and block corresponds each other and be equipped with two sets at least.

Furthermore, fixing pieces are symmetrically arranged on two sides of the lamp tube, and clamp springs are arranged on the fixing pieces.

Furthermore, the upper end of the radiator is provided with a clamping end cover.

Adopt above-mentioned technical scheme, because radiator fixed connection is at the up end of a lamp section of thick bamboo, be equipped with the line hole in a lamp section of thick bamboo upper end, the lower extreme of radiator corresponds the position of crossing the line hole and is equipped with the installation cavity, be equipped with in the installation cavity with cross the cotton circle of fire prevention that is used for protecting the wire that the line hole set up with one heart, the light source subassembly sets up in the installation cavity of a lamp section of thick bamboo, it links to each other to cover rotatory block through the face, make, overall structure connects compactly, equipment convenient and fast, under the use prerequisite that reduces the cotton material of fire prevention, can also carry out effectual heat-resisting protection to the wire, effectively reduce manufacturing cost, the profit space of the product is improved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a schematic sectional view of the present invention.

In the figure, 10-lamp cartridge; 11-a mounting cavity; 12-a wire through hole; 13-flanging; 14-a notch; 15-bending the blocking part; 16-a fixing sheet; 17-a clamp spring; 20-a light source assembly; 21-LED light source module; 22-a reflective cup; 23-a unibody lens; 231-an annular portion; 232-ring groove; 233-an elastic member; 30-a heat sink; 31-a mounting groove; 311-fireproof cotton ring; 32-a cavity; 33-connecting holes; 34-a snap-fit end cap; 40-face cover; 41-an annular extension; 42-second connecting structure.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. Here, the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited to the description. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 2, a fire-proof down lamp includes a lamp tube 10 and a heat sink 30. The inside of a lamp section of thick bamboo 10 is equipped with installation cavity 11 that the opening is decurrent, is equipped with light source subassembly 20 in the installation cavity 11, and the upper end of a lamp section of thick bamboo 10 is equipped with the line hole 12 of crossing that is linked together with installation cavity 11, and the rotatory block of lower extreme of a lamp section of thick bamboo 10 is connected with face lid 40. Through the face lid 40 with the rotatory block connection of lamp section of thick bamboo 10 lower extreme, simple to operate is swift, and the user can bare-handed installation, independently change light source subassembly 20. The lamp tube 10 is made of high temperature resistant metal material, and can protect the light source assembly 20 and the wires from high temperature.

The heat sink 30 is vertically arranged on the upper end surface of the lamp tube 10 and connected with the upper end surface, the lower end of the heat sink 30 is provided with a mounting groove 31 with a downward opening, a fireproof cotton ring 311 which is concentric with the wire passing hole 12 is arranged in the mounting groove 31, a cavity 32 communicated with the mounting groove 31 is arranged in the heat sink 30, and the heat sink 30 is provided with a connecting hole 33 connected with the cavity 32. The heat radiator 30 is vertically arranged on the upper end surface of the lamp tube 10, the lamp tube 10 is connected with the heat radiator 30 by adopting an external interconnection mode, and the fireproof cotton ring 311 which is concentrically arranged with the wire passing hole 12 is arranged in the installation groove 31 at the lower end of the heat radiator 30, so that the use of fireproof cotton materials can be reduced. The wire of connecting light source subassembly 20 passes from the cotton circle 311 center of preventing fires, draws forth the connection drive from connecting hole 33 through cavity 32 for the overall connection structure of down lamp is compact, can protect connecting wire, can reduce the use of the cotton material of preventing fires again, reduces material cost.

In this embodiment, the light source assembly 20 includes the LED light source module 21, the reflective cup and the integral type lens that set gradually in the installation cavity 11, and the peripheral edge of integral type lens lower extreme is equipped with the cyclic annular portion that extends to lamp section of thick bamboo 10 upper end direction, and the cyclic annular portion is equipped with the ring channel, and the ring channel endotheca is equipped with the elastic component that offsets with the installation cavity 11 inner wall. Wherein, the elastic component is a silica gel sealing ring. When the integral type lens equipment got into installation cavity 11, can directly insert the integral type lens in installation cavity 11, kept the fastening through elastic component on its ring channel and 11 inner walls offsets of installation cavity, realized the quick installation of no screw. On the other hand, the sealing between the integral lens and the mounting cavity 11 is also improved by the elastic member.

In this embodiment, the lower end of the lamp tube 10 is provided with a horizontal outward-extending flange 13 along the radial direction of the opening, the outer side of the flange 13 is provided with a first connecting structure, the surface cover 40 is provided with a second connecting structure 42, and the surface cover 40 covers the flange 13 and the peripheral edge of the lower end of the integrated lens and is connected with the first connecting structure in a rotating and clamping manner through the second connecting structure 42. The rapid assembly of the cap 40 with the lamp cylinder 10 is facilitated, and the reinforced connection between the lamp cylinder 10 and the light source assembly 20 is performed. The installation and the disassembly are convenient in the assembly or the maintenance, and the time and the labor are saved.

In a further technical solution of the above embodiment, the first connecting structure includes a gap 14 disposed at an outer edge of the outward flange 13 at intervals, a bending blocking portion 15 is disposed at one side of the gap 14, an annular extending portion 41 disposed perpendicular to the outer edge of the face cover 40 is disposed at an outer edge of the face cover 40, a plurality of second connecting structures 42 extending toward an inner radial direction of the annular extending portion 41 are disposed around an inner side of the annular extending portion 41, and the second connecting structures 42 are blocks capable of passing through the gap 14. When the face cover 40 covers the lamp tube 10 and the peripheral edge of the lower end of the integrated lens, the block body needs to be inserted into the notch 14, and the face cover 40 is rotated to drive the block body to rotate to the upper end face of the flanging 13 and to be abutted against the upper end face of the flanging 13 for fixing, so that the block body on the face cover 40 is buckled with the flanging 13, and the face cover 40 is connected with the lower end of the lamp tube 10. In addition, the block on the face cover 40 can be prevented from being disengaged from the notch 14 by the bending stopping part 15, so as to ensure the connection stability.

In a further technical solution of the above embodiment, the number of the notches 14 and the number of the blocks correspond to each other and at least two sets are provided to ensure the stable connection between the surface cover 40 and the housing.

In this embodiment, the lamp barrel 10 is symmetrically provided with fixing pieces 16 at both sides, and the fixing pieces 16 are provided with snap springs 17. Make things convenient for down lamp to connect on the ceiling. In addition, when the ceiling is fixedly connected, an EVA ring can be sleeved on the upper end of the outward flange 13 of the lamp tube 10 to improve the installation sealing property.

In this embodiment, the top of the heat sink 30 is provided with a snap-in end cap 34, which can be detached when threading the lead wire, so that the lead wire can pass through the connecting hole 33 of the heat sink 30 for connection and driving.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are still within the scope of the invention.

Claims

1. A fire prevention down lamp, its characterized in that includes:

the lamp comprises a lamp barrel, wherein an installation cavity with a downward opening is formed in the lamp barrel, a light source assembly is arranged in the installation cavity, a wire passing hole communicated with the installation cavity is formed in the upper end of the lamp barrel, and the lower end of the lamp barrel is connected with a surface cover in a rotating clamping manner;

the lamp tube comprises a lamp tube body, a radiator and a connecting hole, wherein the lamp tube body is vertically arranged on the upper end face of the lamp tube body, the lower end of the radiator is provided with a mounting groove with a downward opening, a fireproof cotton ring concentrically arranged with the wire passing hole is arranged in the mounting groove, the radiator is internally provided with a cavity communicated with the mounting groove, and the radiator is provided with the connecting hole connected with the cavity.

2. A fire-proof down lamp as claimed in claim 1, wherein the light source assembly comprises an LED light source module, a reflective cup and an integrated lens which are sequentially arranged in the installation cavity, an annular portion extending towards the upper end of the lamp tube is arranged at the peripheral edge of the lower end of the integrated lens, an annular groove is arranged on the annular portion, and an elastic member which is abutted against the inner wall of the installation cavity is sleeved in the annular groove.

3. A fire resistant downlight as claimed in claim 2 wherein the resilient member is a silicone sealing ring.

4. A fireproof down lamp according to claim 2, wherein the lower end of the lamp barrel is provided with a horizontal outward-extending flanging along the radial direction of the opening, the outer side of the flanging is provided with a first connecting structure, the surface cover is provided with a second connecting structure, and the surface cover is covered on the flanging and the peripheral edge of the lower end of the integrated lens and is connected with the first connecting structure in a rotating clamping manner through the second connecting structure.

5. A fire-proof down lamp as claimed in claim 4, wherein the first connecting structure comprises a gap arranged around the outer edge of the flange at intervals, a bending stop part is arranged on one side of the gap, an annular extending part is arranged at the outer peripheral edge of the face cover and perpendicular to the outer peripheral edge of the face cover, a plurality of second connecting structures extending towards the inner diameter direction of the annular extending part are arranged around the inner side of the annular extending part, and the second connecting structures are blocks capable of passing through the gap.

6. A fire resistant down lamp as claimed in claim 5, wherein the number of the notches and the number of the blocks correspond to each other and there are at least two sets.

7. A fireproof down lamp according to claim 1, wherein fixing pieces are symmetrically arranged on two sides of the lamp barrel, and clamping springs are arranged on the fixing pieces.

8. A fire resistant down lamp as claimed in claim 1, wherein a snap-fit end cap is provided at the upper end of the heat sink.