CN110566857A

CN110566857A - Adjustable LED down lamp

Info

Publication number: CN110566857A
Application number: CN201910951302.XA
Authority: CN
Inventors: 管伟国; 孙利飞; 朱宏刚
Original assignee: SUZHOU RONGWEN COOPER LIGHTING SYSTEM CO Ltd
Current assignee: SUZHOU RONGWEN COOPER LIGHTING SYSTEM CO Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2019-12-13

Abstract

The invention discloses an adjustable LED down lamp which comprises a shell, a supporting beam, a support, a junction box and a lamp body, wherein the shell is arranged on the support, the supporting beam is symmetrically arranged on two sides of the support, an arc-shaped guide groove is formed between two adjacent side edges of the support, the junction box is provided with a sliding sheet in an extending mode, the sliding sheet is arranged in the arc-shaped guide groove in a sliding mode, the arc-shaped guide groove is used for guiding the junction box to move horizontally, the junction box is communicated with the shell through a hose, and the lamp body. The terminal box passes through the sliding fit of arc spout, realizes that the terminal box carries out the position switching between adjacent both sides limit, avoids the barrier to shelter from the terminal box and causes the unable installation of down lamp.

Description

Adjustable LED down lamp

Technical Field

the invention relates to the field of illumination, in particular to an adjustable LED down lamp.

Background

As a common lighting device, a down lamp is widely used in office places, halls, markets, and the like, and is mainly installed by being embedded in a ceiling. Generally, the mounting bracket of the down lamp is firstly fixed in a ceiling, and then the through hole is formed in the corresponding position to mount the light-emitting module on the bracket after the fixing is completed through a gypsum board suspended ceiling.

Recently, as the LED technology is becoming mature, downlights with LED light sources are used in more and more places; for safety, a junction box is arranged outside the lamp body, and the connection with a power supply is completed in the junction box; in some installation environments, there may be an obstacle that happens to be located at the position of the junction box, but since the position of the junction box is already fixed when the junction box is shipped from the factory and the position on the side of the support beam is also fixed, a situation that normal installation is not possible may be caused. In addition, most of the existing support beams are not adjustable, so that the existing support beams are very inconvenient to transport or install; of course, there are also support beams that can be adjusted in length, but the stability of the adjustment is poor, especially when pulled to the limit, they are of angular configuration and the reliability is very low.

Disclosure of Invention

aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art, and discloses an adjustable LED down lamp which comprises a shell, a support beam, a support frame, a junction box and a lamp body, wherein the shell is arranged on the support frame, the support beam is symmetrically arranged on two sides of the support frame, an arc-shaped guide groove is formed between two adjacent side edges on the support frame, a sliding sheet is arranged in the junction box in an extending mode, the sliding sheet is arranged in the arc-shaped guide groove in a sliding mode, the arc-shaped guide groove is used for guiding the junction box to horizontally move, the junction box is communicated with the shell through a hose, and the lamp body is arranged in the shell.

Furthermore, a first screw hole is formed in the sliding sheet, a locking screw is arranged in the first screw hole, positioning convex points are symmetrically arranged on two sides of the first screw hole, and positioning concave points matched with the positioning convex points are arranged at two ends of the arc-shaped guide groove in an extending mode.

Furthermore, the side wall of the arc-shaped guide groove is convexly arranged, and two ends of the sliding piece extend towards the side edge to form a limiting piece for limiting and guiding the sliding piece to move.

Furthermore, the supporting beam comprises a first brace and a second brace, the upper edge and the lower edge of the first brace are provided with first sliding grooves relatively, the second brace comprises a body and a plurality of guide pieces arranged on the body in a protruding mode, a second sliding groove is formed between the guide pieces and the body, the guide pieces are arranged in the first sliding grooves in a sliding mode, and the side wall of the first sliding groove is arranged in the second sliding groove in a sliding mode.

further, reinforcing ribs are arranged on the guide sheets.

further, the reinforcing ribs are formed by punching.

Further, the lamp body comprises a chassis, a light source plate and a lampshade, wherein a clamp spring mounting hole used for mounting a clamp spring is formed in the chassis, the clamp spring horizontally rotates by taking the clamp spring mounting hole as a rotation point, the large-size mounting position and the small-size mounting position are switched, the light source plate is arranged in the lampshade, the lampshade is mounted on the chassis, and the chassis is connected with the shell through the chassis.

further, the jump ring includes a style of calligraphy spring and L shape installing support, L shape installing support one end sets up and is used for fixing the spring installation position of a style of calligraphy spring, the other end extend set up be used for with the rotating part that the jump ring mounting hole is connected.

further, the rotating part is type structure, the jump ring mounting hole including rotatory hole and with rotatory hole intercommunication and allow the mounting groove that the rotating part passes through.

Furthermore, at least two mounting parts are rotationally and symmetrically arranged on the chassis, each mounting part comprises a locking part, a connecting part and a guiding part which are sequentially connected, step rivets are arranged at corresponding positions of the lampshade, and the step rivets are mounted in the locking parts when the lampshade is fixed; the connecting part is of a hole-shaped structure and allows the step rivet to pass through; the guide part is of a groove-shaped structure which is arranged in a concave mode; the chassis is characterized by further comprising an elastic pressing piece, wherein the elastic pressing piece is arranged on the chassis and is positioned above the locking part, and a locking hole is formed in the elastic pressing piece.

the invention has the following beneficial effects:

The junction box is in sliding fit with the arc-shaped sliding groove, so that the junction box can be switched between two adjacent side edges, and the condition that the down lamp cannot be installed due to the fact that a barrier shields the junction box is avoided; through first brace parcel guide piece to the first brace lateral wall of second brace parcel has reduced the area of contact between first brace and the second brace, reduces the required precision of first brace and second brace, in addition, when drawing extreme position, can guarantee that two guide pieces support first brace, guarantees the intensity of supporting beam. The reinforcing ribs are arranged in the concave mode, so that the strength of the guide piece is increased, and normal adjustment of the support beam is not influenced; meanwhile, the production steps are simplified, and the process can be completed only by stamping, so that the material consumption is further reduced. The down lamp realizes clamp spring type installation and ceiling lamp type installation, has wider application range and more installation modes; the same clamp spring can be switched between two installation sizes, so that the universal matching performance is further improved; in addition, the clamp spring can be dismantled and set up, and then can change the clamp spring according to not unidimensional, further improves the wildcard nature. Set up the installation department on the chassis to the installation department includes guide portion, becomes the face location from the point location when making the location of step rivet, and then conveniently installs the lamp shade fast under the condition of blind operation, reduces the experience requirement to the staff.

Drawings

FIG. 1 is a schematic view of an adjustable LED down light of the present invention;

FIG. 2 is a schematic structural view of a stent;

FIG. 3 is a schematic view of a junction box;

FIG. 4 is a schematic view of a slider configuration;

FIG. 5 is a schematic view of the connection structure of the slider and the bracket;

FIG. 6 is a schematic structural view of a support beam;

FIG. 7 is a schematic view of a first brace construction;

FIG. 8 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 9 is a schematic view of a second brace construction;

FIG. 10 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 11 is a schematic view of the mounting of the first and second braces;

3 FIG. 3 12 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 6 3; 3

FIG. 13 is a schematic view showing the configuration of the extreme positions of the support beam;

FIG. 14 is an enlarged view of A in FIG. 8;

FIG. 15 is a schematic view of an adjustable mounting dimension downlight of the present invention;

FIG. 16 is a cross-sectional view of an adjustable installation size downlight of the present invention;

FIG. 17 is a schematic view of the structure of the chassis;

FIG. 18 is a schematic structural diagram of a clamp spring;

FIG. 19 is a schematic view of the structure of the base plate on which the elastic pressing sheet is mounted;

FIG. 20 is a schematic view of a lamp illumination configuration;

FIG. 21 is a schematic view showing a structure of connecting a base plate and a step rivet;

FIG. 22 is a schematic view of the structure of the elastic pressing sheet;

The reference numbers are as follows:

1. a housing, 2, a support beam, 3, a bracket, 4, a junction box, 5, a lamp body, 6, a hose, 31, an arc-shaped guide groove, 32, a positioning concave point, 41, a sliding sheet, 42, a first screw hole, 43, a positioning convex point, 44, a locking screw, 45, a limiting sheet, 21, a first brace, 22, a second brace, 211, a first chute, 212, a bolt, 221, a body, 222, a guide sheet, 223, a second chute, 224, a reinforcing rib, 225, a locking block, 226, a middle section, 227, a rear section, 228, a pre-folding line, 229, a front section, 51, a chassis, 52, a light source plate, 53, a lamp shade, 54, a snap spring, 511, a snap spring mounting hole, 512, a large-size mounting position, 513, a small-size mounting position, 514, a mounting part, 515, an elastic pressing sheet, 516, a key-shaped through hole, 517, a hollow structure, 531, a step rivet, 532, a bulge, 541, a straight-shaped spring, 542, 543. a spring mounting position 544, a rotating part 5111, a rotating hole 5112, a mounting groove 5151, a locking hole 5441, a rotating shaft 5442 and a bottom.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An adjustable LED down lamp is shown in figures 1-5 and comprises a shell 1, supporting beams 2, a support 3, a junction box 4 and a lamp body 5, wherein the shell 1 is installed on the support 3, the supporting beams 2 are symmetrically arranged on two sides of the support 3, the shell 1 is installed on a ceiling or an installation support through the supporting beams 3, an arc-shaped guide groove 31 is formed between two adjacent side edges of the support 3, the junction box 4 extends to form a sliding sheet 41, the sliding sheet 41 is arranged in the arc-shaped guide groove 31 in a sliding mode, and the arc-shaped guide groove 31 is used for guiding the junction box 4 to horizontally move between the two adjacent side edges of the support 3. The junction box 4 is communicated with the shell 1 through a hose 6, the lamp body 5 is arranged in the shell 1, and the wires in the junction box 4 are led into the shell 1 through the hose 6 and are connected with the lamp body 5.

In one embodiment, as shown in fig. 1 to 5, a first screw hole 42 is provided on the sliding plate 41, a locking screw 44 is provided in the first screw hole 42, positioning protrusions 43 are symmetrically provided on both sides of the first screw hole 42, and positioning concave points 32 matching with the positioning protrusions 43 are extended from both ends of the arc-shaped guide groove 31. When the terminal block 4 is mounted on the side of the bracket 3 where the support beam 2 is disposed, the positioning convex points 43 are located in the positioning concave points 32, and at the same time, the locking screws 44 are placed in the arc-shaped guide grooves 31 and fix the slide plate 41 to the bracket 3. When the position of the junction box 4 needs to be adjusted to an adjacent side, the locking screw 44 is unscrewed, the junction box moves to the other side under the guiding of the arc-shaped guide groove 31, in the moving process, the positioning salient points 43 on two sides are all positioned in the arc-shaped guide groove 31 to play a role in positioning and guiding until the other positioning salient point 43 is arranged in the other positioning concave point 32, and the locking screw 44 is screwed tightly to fix the sliding sheet 41. In the whole moving process, at least two guide points are always positioned in the arc-shaped guide groove 31, and the two guide points are respectively a locking screw 44 and a positioning salient point 43, so that the stability of the junction box 4 during moving is ensured.

In one embodiment, as shown in fig. 1 to 5, the side wall of the arc-shaped guide slot 31 is protruded, and the two ends of the sliding piece 41 extend to the side to form a limiting piece 45 for limiting and guiding the movement of the sliding piece 41. When the limiting piece 45 is not arranged, the junction box 4 may rotate by taking the locking screw 44 as a rotation center during movement; after the limiting pieces 45 are arranged, the limiting pieces 45 at the two ends are matched and limited with the side walls of the arc-shaped guide grooves 31 arranged in the protruding mode, and the junction box 4 is guaranteed to move along the guide direction of the arc-shaped guide grooves 31.

In one embodiment, as shown in fig. 6 to 12, the support beam includes a first bar 21 and a second bar 22, the upper side and the lower side of the first bar 21 are opposite to each other to form a first sliding groove 211, the second bar 22 includes a body 221 and a plurality of guide pieces 222 protruding from the body 221, a second sliding groove 223 is formed between the guide pieces 222 and the body 221, the guide pieces 222 are slidably disposed in the first sliding groove 211, and the side wall of the first sliding groove 211 is slidably disposed in the second sliding groove 223. It can be seen that the guide piece 222 corresponds to a supporting point of the first sliding groove 211, and the second sliding groove 223 corresponds to a supporting point of the side wall of the first bar 21, and the first bar 21 and the second bar 22 are drawn by the cooperation of the two. In addition, the contact area between the two is greatly reduced, and even if some positions cause interference fit due to accuracy problems, the sliding friction between each other is reduced due to the small contact area, and the drawing of the first and second braces 21 and 22 is not made difficult. Thereby reducing the accuracy requirements for the production of the first and second braces 21, 22.

In one embodiment, as shown in fig. 6-12, the guide tab 222 is provided with a stiffener 224. This can increase the strength of the guide piece 222. Wherein, the reinforcing rib 224 can be made by stamping, and through the structure, the material cost can be saved. Preferably, the reinforcing ribs 224 have a cross-shaped structure, thereby achieving an increase in the vertical and lateral strength of the guide pieces 222. Specifically, the reinforcing rib 224 is recessed inwardly at one side of the guide piece 222 opposite to the first bar 21 and is protruded at the other side. It is ensured that the mutual sliding between the first and second stays 21 and 22 is not affected while the guide piece 222 is added.

in one embodiment, as shown in FIGS. 6-12, the second brace 22 includes a front section 229, a middle section 226 and a rear section 227, the front section 224 having at least two guide tabs 222, the middle section 226 and the rear end 227 each having at least one guide tab 222. The two guide tabs 222 of the front section 229 support and guide the first brace 21 and ensure the strength and stability of the connection between the first brace 21 and the second brace 22 in the maximum extended position.

in a preferred embodiment, as shown in FIGS. 6-12, pre-break lines 228 are provided between the front 229, middle 226 and rear 227 sections of the second brace 22. The first pull strip 21 is also provided with a pre-broken line 228; when the distance between two points on the ceiling is small, the front sections of the first brace 21 and the second brace 22 extend out more, which may affect the normal use of other components; therefore, it is possible to prevent the end of the first brace 21 from protruding from the second brace 22 and prevent the end of the second brace 22 from protruding from the first brace 21 by connecting the front sections of the first brace 21 and the second brace 22.

In one embodiment, as shown in fig. 6-14, the end of the first bar 21 is provided with a locking tongue 212, and the end of the second bar 22 is provided with a locking block 225 that mates with the locking tongue 212. The locking tongue 212 and the locking block 225 are matched with each other, so that after the locking tongue 212 and the locking block 225 are contacted, the first pulling strip 21 and the second pulling strip 22 cannot be unfolded continuously. When the first stay 21 and the second stay 22 are prevented from being unfolded, the first stay 21 and the second stay 22 are separated due to carelessness of a worker, so that the housing is accidentally dropped, and potential safety hazards exist. In a preferred embodiment, the lock 225 is disposed between two adjacent guide tabs 222 at one end of the second brace 22. Thus, when the latch 212 is in contact with the lock block 225, there are two guide tabs 222 that support the first pull strip 21. Thereby ensuring the connection strength and stability of the first brace 21 and the second brace 22 at the extreme positions.

In one embodiment, as shown in fig. 6-12, the body 221 and the guide tab 222 are of a unitary structure. Therefore, the use of materials can be reduced, one-step forming can be realized, and the production steps can be reduced; meanwhile, the rib 224 may be formed by direct punching by punching.

In one embodiment, as shown in fig. 15 to 17, the lamp body 5 includes a chassis 51, a light source plate 52 and a lamp shade 53, a clip spring mounting hole 511 for mounting a clip spring 54 is provided on the chassis 51, and the clip spring 54 can horizontally rotate with the clip spring mounting hole 511 as a rotation point, and is switched between a large-size mounting position 512 and a small-size mounting position 513; typically, the large size mounting location 512 is 6 inches and the small size mounting location 513 is 5 inches; of course, the large-sized mounting locations 512 and the small-sized mounting locations 513 are not limited to the two sizes. The light source board 52 is disposed in a lamp housing 53, and the lamp housing 53 is mounted on a chassis 51, which is connected to the housing through the chassis 51. Through the rotating structure of the clamp spring 54, the clamp spring 54 is switched between two installation sizes, and the general type of the down lamp is improved.

Specifically, as shown in fig. 15 to 18, the snap spring 54 includes a linear spring 541 and an L-shaped mounting bracket 542, one end of the L-shaped mounting bracket 542 is provided with a spring mounting portion 543 for fixing the linear spring 541, and the other end is extended with a rotating portion 544 for connecting with the snap spring mounting hole 511. In one embodiment, the rotating portion 544 has a convex structure, and the clamp spring mounting hole 511 includes a rotating hole 5111 and a mounting groove 5112 communicating with the rotating hole 5111 and allowing the rotating portion 533 to pass through. In this embodiment, the rotating portion 544 is matched with the snap spring mounting hole 511, so that the snap spring 54 can be detached, and the snap springs 54 with different specifications can be replaced conveniently. That is, one snap spring 54 may fit into 5 "and 6" housings, or 4 "and 7" housings. When the clip spring 54 is mounted, the rotation portion 544 is aligned with the mounting groove 5112 and the rotation hole 5111, inserted therein, and then horizontally moved toward the rotation hole 5111 side, so that the rotation shaft 5441 of the rotation portion 544 enters the rotation hole 5111, and the L-shaped mounting bracket 542 is restricted from moving up and down by the bottom portion 5442.

In one embodiment, as shown in fig. 15 to 21, at least two mounting portions 514 are provided on the chassis 51 in rotational symmetry, the mounting portions 514 include a locking portion 5141, a connecting portion 5142 and a guide portion 5143 which are connected in sequence, and a step rivet 531 is provided at a corresponding position of the lamp housing 53, and the step rivet 531 is mounted in the locking portion 5141 when being fixed. Specifically, the connecting portion 5142 has a hole-shaped structure and allows the step rivet 531 to pass through; when mounted, the step rivet 431 passes through the connecting portion 5142 and moves toward the locking portion 5141, so that the step rivet 531 is caught on the locking portion 4141.

In a preferred embodiment, as shown in fig. 15-21, the guide portion 5143 is a concavely disposed groove-like structure. The step rivet 531 is guided by the guide portion 5143 to move toward the connection portion 5142. After the chassis 51 is installed and the wires are connected, the lampshade 53 needs to be installed on the chassis 51; specifically, after the lampshade 53 is fastened on the chassis 51, the relative position between the chassis 51 and the lampshade 53 cannot be observed, so that the operator needs to have certain operation experience and space experience to continue the operation; however, with the structure of the present embodiment, it is only necessary for the operator to horizontally move after the lamp housing 53 is snapped on the chassis 51, and after the operator feels that the two step rivets 531 fall into the guide portions 5143, at this time, the operator only rotates the lamp housing 53 clockwise until the step rivets 531 move to the locking portions 5141. By the arrangement of the guide portion 5143, the positioning point of the step rivet 531 on the chassis 51 is changed from point to surface, so that the lampshade 53 can be conveniently and accurately mounted.

in one embodiment, as shown in fig. 15 to 22, an elastic pressing piece 515 is further included, and the elastic pressing piece 515 is disposed on the chassis and located above the locking part 5141. When the step rivet 531 enters the locking part 5141, it contacts the elastic pressing piece 515, pushing the elastic pressing piece 515 to move upward, and at the same time, the elastic pressing piece 515 gives downward pressure to the step rivet 531, thereby fixing the step rivet 531 in the locking part 5141. Preferably, a locking hole 5151 is formed on the elastic pressing piece 515, and when the elastic pressing piece is locked, the end of the stepped rivet 531 is located in the locking hole 5151, so that the stepped rivet 531 is further locked.

in one embodiment, as shown in fig. 17, the bottom plate 51 is further provided with a key-shaped through hole 516 for fixing by a screw. When the clamp spring 54 is not needed, the lamp body can be installed as a ceiling lamp, and the chassis 51 is directly fixed on the ceiling, namely, the chassis 51 is fixed on the ceiling by passing screws through the key-shaped through holes 516. The key-shaped through hole improves the flexibility for using screws with different thicknesses.

In one embodiment, as shown in fig. 15-21, the bottom plate 51 has a hollow structure 517 in the middle, and the lampshade 53 has a protrusion 532, and when installed, the protrusion 532 is located in the hollow structure 517. The structure is more beneficial to the installation of the lampshade 53 and the chassis 51; specifically, after the lampshade 53 is buckled on the chassis 51, the worker horizontally moves, so that the protruding part 532 can conveniently fall into the hollow structure 517, at the moment, the horizontal movement range of the lampshade 53 is further reduced, the lampshade 53 continues to horizontally move, and the step rivet 531 can more easily fall into the guide part 5143; therefore, the lampshade 53 and the chassis 51 can be mounted more conveniently through the structure.

In use, as shown in fig. 1-22, first, the first brace 21 and the second brace 22 are installed on the bracket 3, then the position of the junction box 4 is adjusted by installing the position on the ceiling, thereby avoiding obstacles on the ceiling, and the slide 41 is fixed by the locking screw 44; then, the length of the supporting beam 2 is adjusted according to the mounting position on the ceiling, and two ends of the supporting beam 2 are fixed on the ceiling through screws; the chassis 51 is then mounted, the circlip 54 is installed in the circlip mounting hole 511, and the horizontal rotation selects the correct mounting size. Then, after the worker puts his hand through the center hole 517, the clamp spring 54 is pressed so that the clamp spring 54 passes through the through hole of the ceiling, and the linear spring 541 is hung in the housing 1, and after the worker releases his hand, the chassis 51 is free to move upward until it is blocked by the ceiling due to the elasticity of the linear spring 541. The position of the chassis 51 is kept fixed by the restriction of the in-line spring 541. Normally, the light source board 52 is already installed in the lamp housing 53 in advance, and the connection wires extend from the inside of the lamp housing 53, and after the connection wires are connected to the power supply, the installation between the lamp housing 53 and the chassis 51 is performed; after the worker fastens the lampshade 53 on the chassis 51, the lampshade 53 is horizontally moved to enable the protruding part 532 to fall into the hollow structure 517, at the moment, the range of the horizontal movement of the lampshade 53 is further reduced, the lampshade 53 is continuously and horizontally moved, and the step rivet 531 can be more easily enabled to fall into the guide part 5143; the lamp housing 53 is rotated clockwise so that the stepped rivet 531 moves toward the locking portion 5141 until the elastic pressing piece 515 is pressed against the stepped rivet 531, thereby completing the installation.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a LED down lamp with adjustable, includes casing, a supporting beam, support, terminal box and lamp body, its characterized in that, the casing is installed on the support, the setting of a supporting beam symmetry is in the both sides of support, set up the arc guide slot on the support between the adjacent both sides limit, the terminal box extends and sets up the slider, the slider slides and sets up in the arc guide slot, utilize the arc guide slot guide the terminal box horizontal migration, the terminal box pass through the hose with the casing intercommunication, the lamp body sets up in the casing.

2. The adjustable LED down lamp according to claim 1, wherein the sliding plate is provided with a first screw hole, a locking screw is arranged in the first screw hole, positioning convex points are symmetrically arranged on two sides of the first screw hole, and two ends of the arc-shaped guide groove extend to form positioning concave points matched with the positioning convex points.

3. the adjustable LED down lamp according to claim 1, wherein the side wall of the arc-shaped guide groove is convexly provided, and two ends of the sliding piece extend to the side edge to form a limiting piece for limiting and guiding the sliding piece to move.

4. the adjustable LED down lamp according to claim 1, wherein the support beam comprises a first brace and a second brace, the upper edge and the lower edge of the first brace are provided with a first sliding groove, the second brace comprises a body and a plurality of guide pieces protruding from the body, a second sliding groove is formed between the guide pieces and the body, the guide pieces are slidably arranged in the first sliding groove, and the side wall of the first sliding groove is slidably arranged in the second sliding groove.

5. An adjustable LED down lamp according to claim 4, wherein the guide plate is provided with a reinforcing rib.

6. An adjustable LED downlight according to claim 5 wherein the stiffener is formed by stamping.

7. the adjustable LED down lamp of claim 1, wherein the lamp body comprises a chassis, a light source plate and a lamp shade, the chassis is provided with a clamp spring mounting hole for mounting a clamp spring, the clamp spring horizontally rotates by taking the clamp spring mounting hole as a rotation point, and is switched between a large-size mounting position and a small-size mounting position, the light source plate is arranged in the lamp shade, the lamp shade is mounted on the chassis, and the chassis is connected with the shell through the chassis.

8. The adjustable LED down lamp according to claim 7, wherein the clamp spring comprises a linear spring and an L-shaped mounting bracket, one end of the L-shaped mounting bracket is provided with a spring mounting position for fixing the linear spring, and the other end of the L-shaped mounting bracket extends to form a rotating part connected with the clamp spring mounting hole.

9. an adjustable LED downlight according to claim 8, wherein the rotating portion is of a letter-relief structure, and the snap spring mounting hole comprises a rotating hole and a mounting groove which communicates with the rotating hole and allows the rotating portion to pass through.

10. An adjustable LED down lamp according to claim 7, wherein the chassis is provided with at least two mounting parts in rotational symmetry, the mounting parts comprise a locking part, a connecting part and a guiding part which are connected in sequence, and step rivets are arranged at corresponding positions of the lamp shade and are mounted in the locking part when being fixed; the connecting part is of a hole-shaped structure and allows the step rivet to pass through; the guide part is of a groove-shaped structure which is arranged in a concave mode; the chassis is characterized by further comprising an elastic pressing piece, wherein the elastic pressing piece is arranged on the chassis and is positioned above the locking part, and a locking hole is formed in the elastic pressing piece.