Lifting type LED lamp

Abstract

The invention discloses a lifting type LED lamp, and belongs to the technical field of lamps, the lifting type LED lamp comprises a mounting rack mounted in a suspended ceiling, a lifting LED lamp is inserted in the bottom of the suspended ceiling, a winding unit is rotatably connected in the mounting rack through a first bearing seat, the winding unit comprises a shaft tube mounted in the bearing seat, the shaft tube is sleeved with a rolling wheel, and the rolling wheel is rotatably connected with the mounting rack through a second bearing seat. The lifting LED lamp stretches out and draws back up and down through a pull rope wound on the rolling wheel. Through the lifting LED lamp, the winding unit and the grading pushing unit, the multi-stage independent adjusting function is achieved, through the collaborative design of the grading pushing unit and three sets of rolling wheels, independent lifting control over the lamp holder, the lower inner conical cover and the whole lamp is achieved, the diversified lighting requirements from fan-shaped light to cylindrical light are met, and meanwhile in the non-working state, the multi-stage independent adjusting function is achieved. The tough piece automatically seals an outlet of the straight barrel cover through elastic recovery, dust is prevented from entering the straight barrel cover, and lighting effect decline and component aging caused by the dust in the LED lamp are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and particularly relates to a lifting LED lamp. Background Art

[0002] As an energy-saving and environment-friendly lighting device, LED lamps have been widely used in daily scenarios. However, traditional lamps have two major technical bottlenecks: firstly, the adjustment mechanism is single, and only the lighting height can be changed by overall displacement, and the independent adjustment of local components of the lamp body (such as the reflector and the light source module) cannot be realized, which limits the diversified output of light forms; secondly, the exposed structure design causes the lamp to be continuously exposed to environmental dust in the non-working state, especially the dust accumulation problem on the surface area of precision optical components and light-emitting units, which will not only reduce the light output efficiency, but also accelerate the aging of components due to long-term electrostatic adsorption, directly affecting the service life of the device and the lighting quality. Summary of the Invention

[0003] The purpose of the present invention is to provide a lifting LED lamp to solve the problem of the single adjustment mechanism of traditional lamps.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A lifting LED lamp includes a mounting frame installed in a ceiling. A lifting LED lamp is inserted into the bottom of the ceiling, and a winding unit is rotatably connected in the mounting frame through a first bearing seat;

[0006] The winding unit includes a shaft tube installed in the bearing seat. A reel is sleeved on the shaft tube, and the lifting LED lamp realizes up and down telescoping through a pull rope wound around the reel;

[0007] The lifting LED lamp includes a straight tube cover inserted into the ceiling. A lower inner conical cover is inserted into the straight tube cover. A middle inner conical cover is slidably connected in the lower inner conical cover. A lamp holder is slidably connected in the middle inner conical cover. An LED lamp body is threadedly connected in the lamp holder. The pull rope is evenly divided into three groups, and the three groups of pull ropes are respectively connected to the straight tube cover, the lower inner conical cover and the lamp holder.

[0008] As a further description of the above technical solution:

[0009] The winding unit further includes a friction block corresponding to the reel. Slots adapted to the friction block are formed on the outer wall of the shaft tube. The friction block passes through the slots and extension seats are fixed at both ends penetrating into the shaft tube. A first spring with one end fixed to the inner wall of the shaft tube is fixed on the extension seat.

[0010] As a further description of the above technical solution:

[0011] The winding unit further includes a grading pushing unit slidably mounted inside the shaft tube;

[0012] The grading pushing unit includes a shaft rod, axial sliders are fixed to both ends of the shaft rod, axial sliding grooves adapted to the axial sliders are formed on the outer walls of both ends of the shaft tube, and a guiding ring adapted to the shaft tube is fixedly connected to the common end of the two bearing sliders penetrating through the axial sliding grooves. The shaft rod slides inside the shaft tube through the cooperation of the axial sliders and the guiding ring;

[0013] A second motor is assembled on one side surface of one of the first bearing seats, and a second gear is fixed to the output end of the second motor and the end of the shaft tube penetrating through the first bearing seat, and the two second gears are meshed with each other.

[0014] As a further description of the above technical solution:

[0015] A second bearing seat is installed on the outer surface of the guiding ring, slideways are fixed to both side walls of the mounting frame, both ends of the second bearing seat are respectively slidably connected inside the two slideways, a support rod is fixed to the middle of the inner wall of the shaft tube by bolts, and the end of the shaft rod penetrating into the shaft tube is slidably sleeved on the support rod.

[0016] As a further description of the above technical solution:

[0017] A set of left abutting blocks, three groups of continuously arranged middle abutting blocks and three groups of intermittently arranged right abutting blocks are sequentially assembled on the outer wall of the shaft rod from left to right. After the left abutting blocks, middle abutting blocks and right abutting blocks move below the friction blocks, they can move the friction blocks upward to abut against the inner wall of the winding wheel.

[0018] As a further description of the above technical solution:

[0019] Extensions are fixed to both ends of the winding wheel, a cage fixedly connected to both side walls of the mounting frame is sleeved on the outer surface of the extensions, mounting holes are formed on the inner wall of the cage, hemispherical clamping columns are connected by second springs inside the mounting holes, and a plurality of limiting holes adapted to the hemispherical clamping columns and distributed in a circumferential array are formed on the outer wall of the extensions.

[0020] As a further description of the above technical solution:

[0021] On both sides of one side surface of the second bearing seat on the left, left side linkage rods are fixed, and on both sides of the middle of one side surface of the second bearing seat on the right, right side linkage rods are fixed. One end of the left side linkage rod penetrates through the first bearing seat, the cage and the second bearing seat on the right and extends to the outside of the second bearing seat on the right, and one end of the right side linkage rod penetrates through the first bearing seat, the cage and the second bearing seat on the left and extends to the outside of the second bearing seat on the left.

[0022] As a further description of the above technical solution:

[0023] One side of the mounting frame close to the first bearing seat on the left is provided with a cross frame. Two first gears are rotatably connected to the cross frame through bearings. Rack teeth meshing with the first gears are provided on the inner sides of the left linkage rod and the right linkage rod. A first motor with an output end connected to one of the first gears is assembled on the lower surface of the cross frame.

[0024] As a further description of the above technical solution:

[0025] The lifting LED lamp further includes resilient sheets mounted on the top of the inner wall of the straight cylinder cover, and the resilient sheets are distributed in a circumferential array.

[0026] As a further description of the above technical solution:

[0027] Lower guiding chutes are formed on the inner wall of the annular cavity of the lower inner conical cover. Lower guiding magnets adapted to the lower guiding chutes are fixed on the outer wall of the middle inner conical cover. Iron sheets are embedded in the top of the inner wall of the lower guiding chutes. Middle guiding chutes are formed on the inner wall of the annular cavity of the middle inner conical cover. Middle guiding sliders adapted to the middle guiding chutes are fixed on the outer wall of the lamp holder. The lamp holder is slidably connected to the middle inner conical cover through the middle guiding sliders. The middle inner conical cover is slidably connected to the lower inner conical cover through the lower guiding magnets.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0029] By providing the lifting LED lamp, the winding unit and the hierarchical pushing unit, a multi-level independent adjustment function is realized. Through the collaborative design of the hierarchical pushing unit and the three groups of winding wheels, independent lifting control of the lamp holder, the lower inner conical cover and the overall lamp is realized, meeting the diversified lighting requirements from fan-shaped light to cylindrical light;

[0030] Meanwhile, in the non-working state, the resilient sheets automatically close the outlet of the straight cylinder cover through elastic recovery, preventing dust from entering the inside of the straight cylinder cover and avoiding the decline of light efficiency and the aging of components caused by dust accumulation on the LED lamp;

[0031] And through the engaging design of the cage, the hemispherical clamping posts and the limiting holes, automatic locking is carried out by the elastic force of the second spring after the winding wheel stops rotating, preventing the accidental rotation of the winding wheel caused by the self-weight of the lamp and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Shows a schematic structural position diagram inside the mounting frame provided by an embodiment of the present invention;

[0033] Figure 2Shows a schematic structural diagram of the interior of a shaft tube provided according to an embodiment of the present invention;

[0034] Figure 3 Shows the one provided according to an embodiment of the present invention Figure 2 Enlarged view at position A in;

[0035] Figure 4 Shows a schematic installation diagram of the position of the second bearing seat provided according to an embodiment of the present invention;

[0036] Figure 5 Shows a schematic diagram of the state after the shaft rod moves to different positions provided according to an embodiment of the present invention;

[0037] Figure 6 Shows a schematic structural diagram of an extension member provided according to an embodiment of the present invention;

[0038] Figure 7 Shows a schematic structural diagram after multiple hierarchical push units are connected provided according to an embodiment of the present invention;

[0039] Figure 8 Shows a schematic diagram of the position after the pull rope is guided provided according to an embodiment of the present invention;

[0040] Figure 9 Shows a schematic exploded view of the structure of a lifting LED lamp provided according to an embodiment of the present invention;

[0041] Figure 10 Shows a schematic structural diagram of a resilient sheet turning to a vertical state provided according to an embodiment of the present invention;

[0042] Figure 11 Shows a schematic structural state diagram of a lifting LED lamp in a non-lifted state provided according to an embodiment of the present invention;

[0043] Figure 12 Shows a schematic structural state diagram after the lower inner conical cover moves upward alone provided according to an embodiment of the present invention;

[0044] Figure 13 Shows a schematic structural state diagram after the lamp holder moves downward alone and overlaps with the middle inner conical cover;

[0045] Figure 14 Shows a schematic structural state diagram in which the lamp holder together with the middle inner conical cover is overlapped inside the lower inner conical cover provided according to an embodiment of the present invention;

[0046] Figure 15 Shows a schematic structural state diagram after the lamp holder together with the lower inner conical cover moves downward provided according to an embodiment of the present invention;

[0047] Figure 16Shows a schematic diagram of the planar structure state of the LED lamp body when not in use according to an embodiment of the present invention;

[0048] Figure 17 Shows a schematic diagram of the three-dimensional structure state of the LED lamp body when not in use according to an embodiment of the present invention;

[0049] Figure 18 Shows a schematic diagram of the installation position of the support rod according to an embodiment of the present invention;

[0050] Figure 19 Shows a schematic diagram of the structure after the installation of the lifting LED lamp according to an embodiment of the present invention.

[0051] Legend description:

[0052] 10. Mounting frame; 11. First bearing seat; 12. Cross frame;

[0053] 20. Lifting LED lamp; 21. Straight tube cover; 22. Lower inner conical cover; 23. Middle inner conical cover; 24. Lamp holder; 25. LED lamp body; 26. Toughness piece; 27. Lower guiding magnet;

[0054] 30. Winding unit; 31. Shaft tube; 32. Winding wheel; 33. Pulling rope; 34. Friction block; 35. First spring; 36. Extension piece; 37. Retaining frame; 38. Second spring; 39. Hemispherical clamping column; 310. Second motor; 311. Second gear; 312. Support rod;

[0055] 40. Graded pushing unit; 41. Shaft rod; 42. Guide ring; 43. Second bearing seat; 44. Slideway; 45. Left abutting block; 46. Middle abutting block; 47. Right abutting block; 48. Left side linkage rod; 49. Right side linkage rod; 410. First gear; 411. First motor. Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0057] As Figure 1 - Figure 19 shown, what the present invention provides:

[0058] A lifting LED lamp, including a mounting frame 10 installed in the ceiling, a lifting LED lamp 20 inserted into the bottom of the ceiling in an engaging manner, and a winding unit 30 rotatably connected to the mounting frame 10 through a first bearing seat 11;

[0059] The meshing winding unit 30 includes a shaft tube 31 installed in a bearing seat. A winding wheel 32 is sleeved on the meshing shaft tube 31. The meshing lifting LED lamp 20 realizes up-and-down telescoping through a pulling rope 33 wound around the winding wheel 32.

[0060] The meshing lifting LED lamp 20 includes a straight tube cover 21 inserted into the ceiling. A lower inner conical cover 22 is inserted into the meshing straight tube cover 21. A middle inner conical cover 23 is slidably connected inside the meshing lower inner conical cover 22. A lamp holder 24 is slidably connected inside the meshing middle inner conical cover 23. An LED lamp body 25 is threadedly connected inside the meshing lamp holder 24. The meshing pulling rope 33 is evenly divided into three groups, and the three groups of meshing pulling ropes 33 are respectively connected to the straight tube cover 21, the lower inner conical cover 22, and the lamp holder 24.

[0061] Preferably, a guide rope tube is fixedly provided in common at the middle of the inner side wall of the mounting frame 10. The guide rope tube is sleeved on the surface of the pulling rope 33 for guiding the pulling rope 33 so that its end can ensure that the straight tube cover 21, the lower inner conical cover 22, and the lamp holder 24 connected thereto remain in a vertical state.

[0062] The meshing winding unit 30 further includes a friction block 34 corresponding to the winding wheel 32. A slot adapted to the friction block 34 is formed on the outer wall of the meshing shaft tube 31. The meshing friction block 34 penetrates through the slot and extension seats are fixed at both ends penetrating into the shaft tube 31. A first spring 35 with one end fixed to the inner wall of the shaft tube 31 is fixed on the meshing extension seat.

[0063] Particularly, in the initial state, the plane where the outer wall of the friction block 34 is located is lower than the plane where the outer wall of the shaft tube 31 is located, that is, the friction block 34 is completely inside the slot and does not contact the inner wall of the winding wheel 32. At the same time, the center of the outer wall of the friction block 34 and the center of the inner wall of the winding wheel 32 are on the same axis, and when the friction block 34 moves upward to contact the inner wall of the winding wheel 32, it can completely fit with the inner wall of the winding wheel 32 to ensure that sufficient friction can be generated between the two.

[0064] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figures 11 - 17 shown, the meshing winding unit 30 further includes a grading push unit 40 slidably installed in the shaft tube 31.

[0065] The meshing and grading driving unit 40 includes a shaft rod 41. Axial sliders are fixed to both ends of the meshing shaft rod 41. Axial chutes adapted to the axial sliders are provided on the outer walls at both ends of the meshing shaft tube 31. One end of two meshing bearing sliders passing through the axial chutes is commonly fixed with a guide ring 42 adapted to the shaft tube 31. The meshing shaft rod 41 slides within the shaft tube 31 through the cooperation of the axial sliders and the guide ring 42;

[0066] A second bearing seat 43 is installed on the outer surface of the meshing guide ring 42. Slide ways 44 are fixed to both side walls of the meshing mounting frame 10. Both ends of the meshing second bearing seat 43 are respectively slidably connected within the two slide ways 44. A support rod 312 is fixed to the middle of the inner wall of the meshing shaft tube 31 by bolts. One end of the meshing shaft rod 41 inserted into the shaft tube 31 is slidably sleeved on the support rod 312;

[0067] A group of left abutting blocks 45, three groups of continuously arranged middle abutting blocks 46, and three groups of intermittently arranged right abutting blocks 47 are sequentially assembled on the outer wall of the meshing shaft rod 41 from left to right. After the meshing left abutting blocks 45, middle abutting blocks 46, and right abutting blocks 47 move below the friction blocks 34, they can move upward to abut against the inner wall of the reel 32;

[0068] Specifically, the distance between two adjacent reels 32 can accommodate four groups of abutting blocks. Assuming they are groups A, B, C, and D from left to right in sequence, and only one group of left abutting blocks 45 is provided, corresponding to group A, three groups of middle abutting blocks 46 are provided, corresponding to groups A, B, and C, and three groups of right abutting blocks 47 are provided and are spaced apart, corresponding to groups A, B, and D. At the same time, in order to ensure the stability of the lifting, three reels 32 are provided on the left and right sides above the lifting LED lamp 20. That is to say, there are also two shaft rods 41 on the left and right, and the structures on the left and right sides are mirror images. It should be noted that the moving directions of the two shaft rods 41 on the left and right are opposite;

[0069] During actual use, S1: When it is necessary to adjust the lamp holder 24 separately, move the shaft rod 41 on the left to the right by a set distance. At this time, the left abutting block 45, the middle abutting block 46, and the right abutting block 47 move together by a set distance. At this time, only the right abutting block 47 in group D abuts against the friction block 34 of the corresponding right-side reel 32, so that the friction block 34 abuts against the right-side reel 32. In this state, when the shaft tube 31 rotates clockwise or counterclockwise, only the right-side reel 32 can rotate with it. Correspondingly, the moving direction of the right-side shaft rod 41 is opposite but the distance is the same. After the movement, the two mirrored reels 32 can rotate together, and then the drawstring 33 on its surface is unwound or wound, so that the lamp holder 24 rises or falls separately, so that the irradiation range of the LED lamp body 25 can be adjusted (it can irradiate fan-shaped lights with different range sizes, and when moving downward until the bottom of the LED lamp body 25 on the lamp holder 24 is flush with the outlet end of the straight cylinder cover 21, at this time, the largest range of light will be irradiated);

[0070] S2: When it is necessary to adjust the lower inner conical cover 22 separately, on the basis of the moving distance in S1, move the shaft rod 41 on the left to the right by another set distance. At this time, the left abutting block 45, the middle abutting block 46, and the right abutting block 47 move a total of two sets of distances respectively. At this time, only the middle abutting block 46 in group C abuts against the friction block 34 of the corresponding middle reel 32, so that the friction block 34 abuts against the middle reel 32. In this state, when the shaft tube 31 rotates counterclockwise, only the middle-position reel 32 can rotate with it. Correspondingly, the moving direction of the right-side shaft rod 41 is opposite but the distance is the same. After the movement, the two mirrored reels 32 can rotate counterclockwise together, and then the drawstring 33 on its surface is wound, so that the lower inner conical cover 22 rises separately, so that the irradiation shape of the LED lamp body 25 can be adjusted (from fan-shaped light to cylindrical light gradually. During the gradual rise of the lower inner conical cover 22, it will gradually be placed together with the middle inner conical cover 23 and the lamp holder 24 in turn. When the three are placed together, in this state, the light emitted by the LED lamp body 25 will be emitted in a columnar shape due to the action of the straight cylinder cover 21);

[0071] S3: When it is necessary to adjust the lower inner conical cover 22 and the lamp holder 24 simultaneously, on the basis of the moving distance in S2, move the shaft rod 41 on the left side further to the right by a certain distance. At this time, the left abutting block 45, the middle abutting block 46, and the right abutting block 47 move a total of three groups of distances respectively. At this time, only the right abutting block 47 of group B and the middle abutting block 46 of group B abut against the friction blocks 34 corresponding to the right-side reel 32 and the middle reel 32 respectively, so that the two friction blocks 34 abut against the right-side reel 32 and the middle reel 32 respectively. In this state, when the shaft tube 31 rotates clockwise or counterclockwise, the right-side reel 32 and the middle-position reel 32 can rotate together with it. Correspondingly, the moving direction of the right-side shaft rod 41 is opposite but the distance is the same. And after the movement, the four mirrored reels 32 can rotate clockwise or counterclockwise together, thereby unwinding or winding the drawstring 33 on their surfaces, and further enabling the lower inner conical cover 22 and the lamp holder 24 to rise or fall together;

[0072] S4: When it is necessary to repair the lamp, at this time, it is necessary to lower or reset the lifting LED lamp 20 as a whole. At this time, on the basis of the moving distance in S3, move the shaft rod 41 on the left side further to the right by a certain distance. At this time, the left abutting block 45, the middle abutting block 46, and the right abutting block 47 move a total of four groups of distances respectively. At this time, the left abutting block 45 of group A, the middle abutting block 46 of group A, and the right abutting block 47 of group A abut against the friction blocks 34 corresponding to the left-side reel 32, the middle reel 32, and the right-side reel 32 respectively, so that the three friction blocks 34 abut against the right-side reel 32, the middle reel 32, and the left-side reel 32 respectively. In this state, when the shaft tube 31 rotates clockwise or counterclockwise, the right-side reel 32 and the middle-position reel 32 can rotate together with it. Correspondingly, the moving direction of the right-side shaft rod 41 is opposite but the distance is the same. And after the movement, the six mirrored reels 32 can rotate clockwise or counterclockwise together, thereby unwinding or winding the drawstring 33 on their surfaces, and further enabling the lifting LED lamp 20 to descend or reset upward as a whole, which is convenient for maintenance;

[0073] S5: Specifically, when the shaft rod 41 moves to the required position and the abutting block at the required position drives the friction block 34 at the corresponding position to abut against the inner wall of the reel 32, start the second motor 310 to rotate the second gear 311, so that the shaft tube 31 can drive the shaft rod 41 and the abutted reel 32 to rotate together, thereby enabling different components or the whole of the lifting LED lamp 20 to be lifted or lowered.

[0074] Further in detail, as Figure 2 and Figure 4 shown, on one side surface of one of the engaged first bearing seats 11, a second motor 310 is assembled. The output end of the engaged second motor 310 and one end of the shaft tube 31 passing through the first bearing seat 11 are fixed with a second gear 311, and the two engaged second gears 311 are engaged;

[0075] On both sides of one side of the second bearing seat 43 engaged on the left side, left side linkage rods 48 are fixed. On both sides of the middle of one side of the second bearing seat 43 engaged on the right side, right side linkage rods 49 are fixed. One end of the engaged left side linkage rod 48 penetrates through the first bearing seat 11, the cage 37, and the second bearing seat 43 on the right side and extends to the outside of the second bearing seat 43 on the right side. One end of the engaged right side linkage rod 49 penetrates through the first bearing seat 11, the cage 37, and the second bearing seat 43 on the left side and extends to the outside of the second bearing seat 43 on the left side;

[0076] On one side of the mounting frame 10 close to the first bearing seat 11 on the left side, a cross frame 12 is installed. Two first gears 410 are rotatably connected to the cross frame 12 through bearings. On the inner sides of the engaged left side linkage rod 48 and right side linkage rod 49, racks meshing with the first gears 410 are provided. On the lower surface of the engaged cross frame 12, a first motor 411 with an output end connected to one of the first gears 410 is assembled;

[0077] Specifically, during the actual process of adjusting the position of the shaft rod 41, by starting the first motor 411 to drive the first gear 410 connected thereto to rotate and cooperating with the rack, the left side linkage rod 48 and the right side linkage rod 49 can be made to move mirror-symmetrically, so that the second bearing seats 43 on the left and right sides gradually approach or move away from each other, and further the two shaft rods 41 on the left and right can perform relative movement, so that the left abutting blocks 45, middle abutting blocks 46, and right abutting blocks 47 thereon are displaced to the required positions, and further the friction blocks 34 at different positions simultaneously or respectively abut against the inner walls of the corresponding winding wheels 32.

[0078] Furthermore, as Figure 10 and Figure 17 shown, on the inner wall of the annular cavity of the lower inner conical cover 22 engaged, a lower guiding sliding groove is opened. On the outer wall of the middle inner conical cover 23 engaged, a lower guiding magnet 27 adapted to the lower guiding sliding groove is fixed. At the top of the inner wall of the engaged lower guiding sliding groove, an iron sheet is embedded. On the inner wall of the annular cavity of the middle inner conical cover 23 engaged, a middle guiding sliding groove is opened. On the outer wall of the engaged lamp holder 24, a middle guiding sliding block adapted to the middle guiding sliding groove is fixed. The engaged lamp holder 24 is slidably connected to the middle inner conical cover 23 through the middle guiding sliding block. The engaged middle inner conical cover 23 is slidably connected to the lower inner conical cover 22 through the lower guiding magnet 27;

[0079] It should be noted that when the lamp holder 24 moves downward alone, when the lamp holder 24 moves to a position where it cannot continue to move inside the middle inner conical cover 23, at this time, under the superposition of the gravity of the lamp holder 24 and the middle inner conical cover 23, it will be greater than the adsorption force between the lower guiding magnet 27 and the iron sheet, causing the middle inner conical cover 23 to move downward with the lamp holder 24 and stack together inside the lower inner conical cover 22. When the lamp holder 24 returns upward, the lamp holder 24 first moves upward. When the middle guiding slider slides to the top of the middle guiding chute, during the continued movement, the lamp holder 24 will pull the middle inner conical cover 23 upward together. When the lower guiding magnet 27 is magnetically attracted to the iron sheet again, the reset is completed;

[0080] Particularly, when multiple lifting LED lights 20 need to be installed, the equipped shaft rods 41 need to be connected together through couplings. At the same time, the corresponding left linkage rods 48 and right linkage rods 49 are also connected respectively. For example, the free end of the left linkage rod 48 in the middle position needs to be connected and fixed to the second bearing seat 43 connected to the fixed end of the left linkage rod 48 in the left position, and the other rod bodies are connected in a similar manner. In this state, only one first motor 411 and second motor 310 need to be equipped in the middle position.

[0081] Further in detail, as Figure 4 and Figure 6 shown, in order to ensure that the reel 32 will not rotate automatically due to gravity after stopping rotating, extension members 36 are fixed at both ends of the meshing reel 32. A retaining frame 37 whose two ends are respectively fixed to the two side walls of the mounting frame 10 is sleeved on the outer surface of the meshing extension members 36. Mounting holes are provided on the inner wall of the meshing retaining frame 37. Hemispherical clamping columns 39 are connected in the mounting holes through second springs 38. A plurality of limiting holes adapted to the hemispherical clamping columns 39 and distributed in a circumferential array are provided on the outer wall of the meshing extension members 36;

[0082] Specifically, the frictional force generated after the friction block 34 abuts against the inner wall of the reel 32 is greater than the abutting force exerted by the second spring 38 on the hemispherical clamping column 39 to make it snap into the limiting hole. That is, when the friction block 34 abuts against the inner wall of the reel 32, when the shaft tube 31 rotates, it will drive the reel 32 to rotate together and will not be hindered by the hemispherical clamping column 39. After the rotation ends, the hemispherical clamping column 39 is driven by the second spring 38 to snap into the corresponding limiting hole again, fixing the position of the reel 32, so that the reel 32 will not rotate automatically due to the self-weight of the lifting LED light 20.

[0083] As Figure 9 、 Figure 10 and Figure 17As shown in the figure, in order to protect the LED lamp body 25 in the unused state, the meshing lifting LED lamp 20 further includes a resilient sheet 26 installed at the top of the inner wall of the straight cylinder cover 21. The meshing resilient sheets 26 are distributed in a circumferential array. Preferably, the resilient sheet 26 is composed of a dust-proof cloth and elastic rods passing through both sides of the dust-proof cloth. The resilient sheet 26 can return to the horizontal state under the action of the elastic rods;

[0084] Specifically, when not in use, by driving the lower inner conical cover 22 and the lamp base 24 to move upward simultaneously, during the process, the middle inner conical cover 23 will also move together. When moving beyond the connection between the resilient sheet 26 and the inner wall of the straight cylinder cover 21, the resilient sheet 26 will return from the folded vertical state to the horizontal state under the action of its own resilience. Then, under the action of multiple resilient sheets 26, the straight cylinder cover 21 is closed to protect the LED lamp body 25, preventing it from being attached with dust during non-use and ensuring its normal lighting use;

[0085] It should be noted that even if the resilient sheet 26 is pushed to fold upward, when there is no longer a top against the folded resilient sheet 26, the resilient sheet 26 returns to the horizontal state. When resuming use, control the lower inner conical cover 22 and the lamp base 24 to descend simultaneously. After the lower inner conical cover 22 contacts the horizontal resilient sheet 26 and continues to move downward, the resilient sheet 26 will gradually fold downward to the vertical state under the action of the self-weight of the lower inner conical cover 22 and adhere to the gap between the outer wall of the lower inner conical cover 22 and the inner wall of the straight cylinder cover 21. When continuing to move downward until it detaches from the straight cylinder cover 21 and gradually moves away, moving to different positions can provide different lighting conditions.

[0086] Specifically, when this lifting LED lamp is working / being used:

[0087] 1. Adjust the lamp base 24 alone (adjust the irradiation range)

[0088] Start the first motor 411 to drive the left shaft rod 41 to move rightward for a certain distance, so that the friction block 34 of the right reel 32 abuts against the inner wall of the reel 32;

[0089] Start the second motor 310 to drive the right reel 32 to rotate through the shaft tube 31, unwind or wind the pull rope 33 connected to the lamp base 24, and realize the independent lifting of the lamp base 24;

[0090] When the lamp base 24 descends to the bottom flush with the outlet end of the straight cylinder cover 21, the irradiation range of the LED lamp body 25 is the largest.

[0091] 2. Adjust the lower inner conical cover 22 alone (adjust the irradiation shape)

[0092] On the basis of step 1, continue to drive the left shaft rod 41 to move rightward for a set distance, so that the friction block 34 of the middle reel 32 abuts against the inner wall of the reel 32;

[0093] Start the second motor 310, drive the middle reel 32 to rotate through the shaft tube 31, wind up the pulling rope 33 connected to the lower inner conical cover 22, and make it rise alone;

[0094] During the rising process of the lower inner conical cover 22, it overlaps with the middle inner conical cover 23 and the lamp holder 24, and the irradiation shape of the LED lamp body 25 is gradually adjusted from fan-shaped light to cylindrical light.

[0095] 3. Adjust the lower inner conical cover 22 and the lamp holder 24 simultaneously

[0096] On the basis of step 2, continue to drive the left shaft rod 41 to move to the right by a set distance, so that the friction blocks 34 of the right and middle reels 32 are simultaneously abutted;

[0097] Start the second motor 310, drive the right and middle reels 32 to rotate synchronously through the shaft tube 31, perform linkage winding and unwinding on the pulling ropes 33 of the lower inner conical cover 22 and the lamp holder 24, and realize their synchronous lifting and lowering;

[0098] 4. Lift and lower the lamp as a whole (for maintenance or reset)

[0099] On the basis of step 3, continue to drive the left shaft rod 41 to move to the right by a set distance, so that the friction blocks 34 of the left, middle and right reels 32 are all abutted;

[0100] Start the second motor 310, drive all the reels 32 to rotate synchronously through the shaft tube 31, perform linkage winding and unwinding on the three groups of pulling ropes 33, and realize the overall lowering or upward reset of the lamp.

[0101] 5. Dust-proof protection operation

[0102] In the non-use state, drive the lower inner conical cover 22 and the lamp holder 24 to rise into the straight tube cover 21 at the same time, and the resilient piece 26 automatically closes the outlet of the straight tube cover 21 through elastic recovery;

[0103] When resuming use, drive the lower inner conical cover 22 and the lamp holder 24 to descend at the same time, and the resilient piece 26 gradually folds down to a vertical shape under the gravity of the lower inner conical cover 22, and the lighting function is restored.

[0104] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A lifting LED lamp, comprising a mounting bracket (10) installed in a suspended ceiling, characterized in that, A lifting LED lamp (20) is inserted at the bottom of the ceiling, and a winding unit (30) is rotatably connected in the mounting frame (10) through a first bearing seat (11); The winding unit (30) includes a shaft tube (31) installed in the bearing seat. A winding wheel (32) is sleeved on the shaft tube (31). The lifting LED lamp (20) realizes up and down telescoping through a pull rope (33) wound around the winding wheel (32); The lifting LED lamp (20) includes a straight tube cover (21) inserted into the ceiling. A lower inner conical cover (22) is inserted into the straight tube cover (21). A middle inner conical cover (23) is slidably connected in the lower inner conical cover (22). A lamp holder (24) is slidably connected in the middle inner conical cover (23). An LED lamp body (25) is threadedly connected in the lamp holder (24). The pull rope (33) is evenly divided into three groups, and the three groups of pull ropes (33) are respectively connected to the straight tube cover (21), the lower inner conical cover (22), and the lamp holder (24).

2. The liftable LED lamp according to claim 1, characterized in that, The winding unit (30) further includes a friction block (34) corresponding to the winding wheel (32). Slots adapted to the friction block (34) are formed on the outer wall of the shaft tube (31). The friction block (34) penetrates through the slots and fixed extension seats are provided at both ends penetrating into the shaft tube (31). A first spring (35) with one end fixed to the inner wall of the shaft tube (31) is fixed on the extension seat.

3. The elevating LED lamp according to claim 2, wherein The winding unit (30) further includes a grading push unit (40) slidably installed in the shaft tube (31); The grading push unit (40) includes a shaft rod (41). Axial sliders are fixed at both ends of the shaft rod (41). Axial chutes adapted to the axial sliders are formed on the outer walls of both ends of the shaft tube (31). A guiding ring (42) adapted to the shaft tube (31) is jointly fixed at one end where the two bearing sliders penetrate through the axial chutes. The shaft rod (41) slides in the shaft tube (31) through the cooperation of the axial sliders and the guiding ring (42); A second motor (310) is assembled on one side surface of one of the first bearing seats (11). A second gear (311) is fixed at the output end of the second motor (310) and at one end where the shaft tube (31) penetrates through the first bearing seat (11). The two second gears (311) are meshed with each other.

4. The liftable LED lamp according to claim 3, wherein, A second bearing seat (43) is installed on the outer surface of the guiding ring (42). Slide ways (44) are fixed on both side walls of the mounting frame (10). Both ends of the second bearing seat (43) are respectively slidably connected in the two slide ways (44). A support rod (312) is fixed in the middle of the inner wall of the shaft tube (31) by bolts. One end of the shaft rod (41) penetrating into the shaft tube (31) is slidably sleeved on the support rod (312).

5. The lifting LED lamp according to claim 4, characterized in that, A set of left abutting blocks (45), three continuously arranged middle abutting blocks (46), and three intermittently arranged right abutting blocks (47) are sequentially assembled on the outer wall of the shaft rod (41) from left to right. After the left abutting blocks (45), middle abutting blocks (46), and right abutting blocks (47) move below the friction block (34), they can move it upward to abut against the inner wall of the reel (32).

6. The liftable LED lamp according to claim 1, wherein, Extension pieces (36) are fixed at both ends of the reel (32). A retaining frame (37) with both ends fixed to the two side walls of the mounting frame (10) is sleeved on the outer surface of the extension pieces (36). Mounting holes are formed on the inner wall of the retaining frame (37). A hemispherical clamping post (39) is connected in the mounting hole through a second spring (38). A plurality of limiting holes adapted to the hemispherical clamping post (39) and distributed in a circumferential array are formed on the outer wall of the extension piece (36).

7. The elevating LED lamp according to claim 5, characterized in that, Left linkage rods (48) are fixed on both sides of one side surface of the second bearing seat (43) on the left side, and right linkage rods (49) are fixed on both sides of the middle part of one side surface of the second bearing seat (43) on the right side. One end of the left linkage rod (48) penetrates through the first bearing seat (11), the retaining frame (37), and the second bearing seat (43) on the right side and extends to the outside of the second bearing seat (43) on the right side. One end of the right linkage rod (49) penetrates through the first bearing seat (11), the retaining frame (37), and the second bearing seat (43) on the left side and extends to the outside of the second bearing seat (43) on the left side.

8. The liftable LED lamp according to claim 7, wherein, A cross frame (12) is installed on one side of the mounting frame (10) close to the first bearing seat (11) on the left side. Two first gears (410) are rotatably connected to the cross frame (12) through bearings. Rack teeth meshing with the first gears (410) are arranged on the inner sides of the left linkage rod (48) and the right linkage rod (49). A first motor (411) with an output end connected to one of the first gears (410) is assembled on the lower surface of the cross frame (12).

9. The lifting LED lamp according to claim 1, characterized in that, The lifting LED lamp (20) further includes toughness pieces (26) installed at the top of the inner wall of the straight cylinder cover (21), and the toughness pieces (26) are distributed in a circumferential array.

10. The liftable LED lamp according to claim 9, wherein, Lower guiding sliding grooves are formed on the inner wall of the annular cavity of the lower inner conical cover (22). Lower guiding magnets (27) adapted to the lower guiding sliding grooves are fixed on the outer wall of the middle inner conical cover (23). Iron sheets are embedded at the top of the inner wall of the lower guiding sliding grooves. Middle guiding sliding grooves are formed on the inner wall of the annular cavity of the middle inner conical cover (23). Middle guiding sliding blocks adapted to the middle guiding sliding grooves are fixed on the outer wall of the lamp base (24). The lamp base (24) is slidably connected to the middle inner conical cover (23) through the middle guiding sliding blocks. The middle inner conical cover (23) is slidably connected to the lower inner conical cover (22) through the lower guiding magnets (27).

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