Omnibearing dead-corner-free LED down lamp

Abstract

The utility model relates to the technical field of down lamps, in particular to an all-dimensional dead-corner-free LED down lamp which comprises a lamp shell, a sliding frame, a button, an outer barrel, a piston rod and a tensioning assembly B. The lamp shell is connected with an LED lamp, and the LED lamp is covered with a lampshade. An inner cavity and a plurality of through holes A communicated with the inner cavity are formed in the lamp shell. The sliding frame is located in the inner cavity, a plurality of tensioning assemblies A are arranged on the sliding frame, each tensioning assembly A is connected with a wedge-shaped clamping block, and each wedge-shaped clamping block stretches out along the through hole A in the corresponding side. The button is inserted into the inner cavity along the outside of the lamp shell and connected with the sliding frame. The outer cylinder is located in the inner cavity and connected with the inner wall of the inner cavity and provided with an air hole B and an air hole A internally provided with a one-way valve. The piston plate is inserted into the outer cylinder and slides with the inner wall of the outer cylinder. The tensioning assembly B is connected with the upper wall of the inner cavity and the upper surface of the sliding frame. According to the down lamp, the down lamp can be mounted and dismounted through simple operation, and a ceiling is effectively prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of downlights, in particular to an all-round LED downlight with no dead angles. Background Art

[0002] Downlights are lamps with a screw-type lamp holder that can be directly installed with incandescent lamps or energy-saving lamps. Downlights are a type of lighting fixture that is embedded in the ceiling and emits light downward.

[0003] The technical solution disclosed in the Chinese patent with the authorization announcement number CN219283211U fixes the device on the ceiling by means of buckles, thereby realizing the rapid disassembly and assembly of the downlight.

[0004] However, the device still has some shortcomings: this structure is more difficult to remove and replace the downlight, and the thicker the ceiling is, the more difficult it is to remove. At the same time, the device is very easy to scratch the ceiling when it is disassembled. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes an all-round LED downlight without dead angles.

[0006] The technical solution of the utility model is an all-round LED downlight without dead angles, comprising a lamp housing, the lamp housing is connected to an LED lamp, and the lamp housing is provided with a lampshade outside the LED lamp. An inner cavity and a plurality of through holes A connected to the inner cavity are arranged in the lamp housing.

[0007] The slide is located in the inner cavity and slides radially along the inner cavity. The slide is provided with a plurality of tensioning assemblies A in a circular array around its axis. Each tensioning assembly A is respectively connected to a wedge-shaped block, and each wedge-shaped block extends out along the corresponding side through hole A.

[0008] A button is inserted into the inner cavity along the outside of the lamp housing and connected with the slide.

[0009] The outer tube is located in the inner cavity and connected to the inner wall thereof. The outer tube is provided with an air hole B and an air hole A with a one-way valve inside. The one-way valve is only opened when exhausting.

[0010] A piston rod, one end of the piston rod is connected to a piston plate and the other end is connected to a slide frame; the piston plate is inserted into the outer cylinder and slides with the inner wall thereof.

[0011] And a tensioning assembly B, wherein the tensioning assembly B is connected to the upper wall of the inner cavity and the upper surface of the slide.

[0012] Preferably, a through hole B is provided on the lamp housing, and the button passes through the through hole B and slides with the inner wall thereof.

[0013] Preferably, the height of the through hole A is greater than the height of the wedge-shaped block, and the inclined surface of the wedge-shaped block is close to the upper wall of the through hole A.

[0014] Preferably, a convex edge is provided on the lamp housing, and a flexible protective pad is provided on the convex edge for preventing the ceiling from being scratched.

[0015] Preferably, the inner diameter of pore A is larger than the inner diameter of pore B.

[0016] Preferably, the lamp housing is provided with a power cord connected to a power source, and the lamp housing is provided with heat dissipation fins for assisting heat dissipation.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] By setting a slide, the slide is elastically connected to the wedge-shaped block, and the wedge-shaped block can be retracted by pushing the slide until the inclined surface of the wedge-shaped block abuts against the upper wall of the through hole A, so that the lamp housing can be easily installed on the ceiling and pulled out from the pre-installed hole on the ceiling. In addition, the structure can also be suitable for the installation of ceilings of different thicknesses, and the operation is simple and convenient. At the same time, by setting a connection structure between the outer tube, the piston plate and the piston rod, the outer tube is provided with air holes B and one-way exhaust air holes A, when the slide slides on the slide, the air in the outer tube is quickly discharged, and when the slide slides back under the tension of the tensioning assembly, the outside air only enters the outer tube along the tiny air holes B, so that the piston plate is reset slowly, and the re-extension of the wedge-shaped block is delayed. During this time, the downlight can be directly pulled out from the pre-installed hole. The structure is convenient for the staff to operate with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 Schematic diagram of the internal structure of the lamp housing;

[0021] Figure 3 It is a schematic diagram of the connection structure between the slide and the outer cylinder;

[0022] Figure 4 Schematic diagram of the connection structure between the piston rod and the piston.

[0023] Figure numerals: 1. lamp housing; 101. inner cavity; 102. through hole A; 103. through hole B; 104. flange; 105. flexible protective pad; 2. lampshade; 3. power cord; 4. cooling fins; 5. slide; 6. tensioning assembly A; 7. wedge-shaped block; 8. button; 9. outer tube; 901. air hole A; 902. air hole B; 10. one-way valve; 11. piston rod; 12. piston plate; 13. tensioning assembly B. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 4As shown, the utility model proposes an all-round LED downlight without dead angles, including a lamp housing 1, a slide 5, a button 8, an outer tube 9, a piston rod 11 and a tensioning assembly B13. The lamp housing 1 is connected to the LED lamp, and the lamp housing 1 is provided with a lampshade 2 on the outside of the LED lamp. An inner cavity 101 and a plurality of through holes A102 connected to the inner cavity 101 are provided in the lamp housing 1. A through hole B103 is provided on the lamp housing 1. A convex edge 104 is provided on the lamp housing 1. The lamp housing 1 is provided with a power cord 3 connected to the power supply, and a heat dissipation fin 4 for auxiliary heat dissipation is provided on the lamp housing 1. The slide 5 is located in the inner cavity 101 and slides along the radial direction of the inner cavity 101. The slide 5 is provided with a plurality of tensioning assemblies A6 in an annular array around its axis. The tensioning assemblies A6 include a telescopic rod A and a spring A. The two ends of the telescopic rod are respectively connected to the slide 5 and the wedge-shaped block 7 on the corresponding side. The spring is sleeved on the outside of the telescopic rod, and the two ends of the spring are respectively abutted against the wedge-shaped block 7 and the slide. Each wedge-shaped block 7 extends out along the through hole A102 on the corresponding side. The height of the through hole A102 is greater than the height of the wedge-shaped block 7, and the inclined surface of the wedge-shaped block 7 is close to the upper wall of the through hole A102. The button 8 is inserted into the inner cavity 101 through the through hole B103 and connected to the slide 5. The outer cylinder 9 is located in the inner cavity 101 and connected to its inner wall. The outer cylinder 9 is provided with an air hole B902 and an air hole A901 with a one-way valve 10 inside. The one-way valve 10 is only open when exhausting. The inner diameter of the air hole A901 is larger than the inner diameter of the air hole B902. One end of the piston rod 11 is connected to the piston plate 12 and the other end is connected to the slide 5. The piston plate 12 is inserted into the outer cylinder 9 and slides with its inner wall. The tensioning assembly B includes a spring B, and the two ends of the spring B respectively abut against the upper wall of the inner cavity 101 and the upper surface of the slide 5.

[0026] In this embodiment, when installing the device, first connect it to the household circuit through the power cord 3, and then squeeze the button 8 to slide the slide 5 to the top. At this time, the wedge-shaped block 7 retracts into the slide 5 after the inclined surface hits the upper wall of the through hole A102. The staff only needs to insert the top of the lamp housing 1 into the pre-installed hole and wait for a while. The slide 5 is pressed down under the tension of the tensioning component B13, and the wedge-shaped block 7 pops out first, and then the wedge-shaped block 7 follows the slide 5 to slide back until its plane hits the upper surface of the ceiling. When the downlight needs to be removed, the slide 5 is pushed to the top. During this process, the piston plate 12 slides in the outer tube 9, and the air in the outer tube 9 is quickly discharged along the air holes A901 and the air holes B902. After releasing the button 8, the tensioning component B13 pushes the slide 5 back to reset it. However, at this time, the outside air can only enter the outer tube 9 along the tiny air holes B902, which makes the reset of the piston 12 have a certain delay. During this time interval, the wedge block 7 is in a retracted state, and the lamp housing 1 can be directly pulled out from the pre-installed hole.

[0027] Embodiment 2

[0028] like Figure 2As shown, the utility model proposes an all-round LED downlight without dead angles. Compared with the first embodiment, a flexible protective pad 105 is provided on the convex edge 104 to prevent the ceiling from being scratched.

[0029] In this embodiment, the flexible protective pad 105 can further effectively prevent the surface of the ceiling from being scratched when the lamp housing 1 is pressed against the ceiling, and at the same time avoid deformation or even cracking of the ceiling due to excessive thrust.

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An all-round LED downlight with no blind spots, characterized in that: include A lamp housing (1), the lamp housing (1) being connected to an LED lamp, and the lamp housing (1) being provided with a lampshade (2) on the outside of the LED lamp; an inner cavity (101) and a plurality of through holes A (102) communicating with the inner cavity (101) being provided in the lamp housing (1); A slide (5), the slide (5) is located in the inner cavity (101) and slides radially along the inner cavity (101), the slide (5) is provided with a plurality of tensioning assemblies A (6) in an annular array around its axis, each tensioning assembly A (6) is respectively connected to a wedge-shaped block (7), and each wedge-shaped block (7) is respectively extended along a corresponding side through hole A (102); A button (8), the button (8) is inserted into the inner cavity (101) along the outside of the lamp housing (1) and connected to the slide bracket (5); An outer cylinder (9), the outer cylinder (9) is located in the inner cavity (101) and connected to the inner wall thereof, the outer cylinder (9) is provided with an air hole B (902) and an air hole A (901) having a one-way valve (10) inside, and the one-way valve (10) is opened only when exhausting gas; A piston rod (11), one end of the piston rod (11) is connected to a piston plate (12) and the other end is connected to a slide (5), the piston plate (12) is inserted into the outer tube (9) and slides with the inner wall thereof; And a tensioning assembly B (13), the tensioning assembly B (13) is connected to the upper wall of the inner cavity (101) and the upper surface of the slide (5).

2. The all-round LED downlight without dead angles according to claim 1, characterized in that: A through hole B (103) is provided on the lamp housing (1), and the button (8) passes through the through hole B (103) and slides with the inner wall thereof.

3. The all-round LED downlight without dead angles according to claim 1, characterized in that: The height of the through hole A (102) is greater than the height of the wedge-shaped block (7), and the inclined surface of the wedge-shaped block (7) is close to the upper wall of the through hole A (102).

4. The all-round LED downlight without blind spots according to claim 1, characterized in that: A convex edge (104) is arranged on the lamp housing (1), and a flexible protective pad (105) is arranged on the convex edge (104) for preventing the ceiling from being scratched.

5. The all-round LED downlight without blind spots according to claim 1, characterized in that: The inner diameter of pore A (901) is greater than the inner diameter of pore B (902).

6. The all-round LED downlight without blind spots according to claim 1, characterized in that: The lamp housing (1) is provided with a power cord (3) for connecting to a power source, and the lamp housing (1) is provided with heat dissipation fins (4) for assisting heat dissipation.

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