An LED lamp

Abstract

The utility model relates to a kind of LED lamps. Including lamp set support, the bottom of lamp set support is fixedly installed at least one LED lamp disc;It is characterized in that, it further includes steel chain lifting device, the steel chain lifting device includes shell, steel chain, gear and first driving device, two guide plates are equipped in the shell, the steel chain includes two and is symmetrically arranged in shell, the steel chain slides along corresponding guide plate;The outside of at least one of two steel chains is equipped with the transmission tooth engaged with the gear, the inside of two steel chains is equipped with the hooking tooth engaged with corresponding hooking engagement respectively;The lower end of steel chain extends from shell and is fixedly connected in the middle part of lamp set support, the gear is fixedly connected on the output shaft of first driving device, gear is engaged with the transmission tooth of steel chain to drive steel chain to extend or retract the shell, when steel chain extends shell, the hooking tooth of two steel chains is engaged with each other to make the part of steel chain that extends shell convert into rigid structure. The present scheme can play the effect of preventing lamp disc swing.

Description

Technical Field

[0001] This utility model relates to an LED lamp. Background Technology

[0002] In agricultural greenhouses, LED lights are important supplemental lighting fixtures. During the plant's growth process, the hanging height of the lights needs to be adjusted according to the plant's growth to avoid blocking natural light or scorching the leaves. Therefore, supplemental lighting fixtures need to be able to adjust their hanging height to meet the growth needs of plants at different stages.

[0003] Most plant grow lights currently on the market are directly suspended from a winding reel by a pull rope, and the reel is driven by a motor to adjust the vertical height of the light. In the field of agricultural greenhouses, where high efficiency and low cost are pursued, this type of light does indeed achieve a simple structure and low cost. However, because the LED lighting panels are directly suspended from the reel by ropes, during windy seasons, when the wind speed reaches a certain level (usually level 6 or above), the strong wind will directly act on the greenhouse film and frame, causing the greenhouse to sway, either as a whole or in parts. The lighting panels are prone to swaying, or even when ventilation is needed inside the greenhouse, the lighting panels will still sway, leading to the following adverse consequences: First, the swaying of the lighting panels causes changes in the light range and distance, thus affecting plant growth. Uneven light leads to a decrease in plant photosynthetic efficiency, especially during the fruiting period, affecting fruit quality. Second, the swaying lights can cause mechanical damage to young plant leaves due to friction or impact. Third, it can lead to equipment safety accidents such as loose or broken wiring, increasing maintenance costs and affecting economic benefits. Utility Model Content

[0004] To address the problem of the aforementioned lamp panel easily wobbling, this utility model provides an LED lamp.

[0005] The technical solution of this utility model for an LED lamp is as follows: An LED lamp includes a lamp assembly bracket, with at least one LED lamp panel fixedly mounted at the bottom of the lamp assembly bracket; it also includes a rigid chain lifting device, the rigid chain lifting device including a housing, a rigid chain, a gear, and a first drive device. The housing has two guide plates, and the rigid chain comprises two chains symmetrically arranged within the housing, sliding along the corresponding guide plates. At least one of the two rigid chains has transmission teeth on its outer side that mesh with the gear, and hook teeth on the inner side of each of the two rigid chains that mesh with corresponding hooks. The lower end of the rigid chain extends from the housing and is fixedly connected to the middle of the lamp assembly bracket. The gear is fixedly connected to the output shaft of the first drive device. The gear meshes with the transmission teeth of the rigid chain to drive the rigid chain to extend or retract from the housing. When the rigid chain extends out of the housing, the hook teeth of the two rigid chains mesh with each other, causing a portion of the extended rigid chain to become a rigid structure.

[0006] The beneficial effects of this technical solution are as follows: Compared to existing flat pendant lights that rely solely on rope slinging, this solution fixes the LED light panel to the light assembly bracket and uses a rigid chain lifting device to control the vertical lifting of the light assembly bracket. When the two rigid chains are engaged, they form a rigid column, ensuring smooth and stable operation without swaying during lifting. Furthermore, it can withstand significant axial pressure, lateral force, and bending moment without bending, shaking, or instability. This reduces or prevents mechanical damage to plant growth caused by light panel swaying, friction or impact on plant leaves, and loose wiring in the light fixture itself. In addition, the rigid chains are flexible in the non-engaged state, allowing them to be tightly coiled within the housing, resulting in a very small overall installation space, especially in the height direction. This makes it ideal for automated or semi-automated agricultural greenhouses with height limitations.

[0007] Furthermore, the links of the rigid chain have built-in permanent magnets, and a Hall sensor is provided on the output shaft of the first drive device. The Hall sensor is used to count the number of links, thereby detecting the position of the chain end and feeding back a signal to the control unit, so that the control unit automatically cuts off the power supply to prevent the rigid chain from falling due to the chain end exceeding the travel.

[0008] Furthermore, the housing also includes a chain end limiting device, which includes a spring pin disposed on a guide plate positioned opposite to the gear or on a guide plate above the gear, and a link hole formed on the end link of the rigid chain that mates with the spring pin.

[0009] Furthermore, the lamp assembly bracket includes a top plate, a bottom plate, and a side plate. One side of the bottom plate is hinged to the lower part of the side plate via a hinge shaft. The LED lamp panel is mounted on the lower surface of the bottom plate. The lamp assembly bracket is provided with a linkage mechanism for driving the bottom plate to rotate around the hinge shaft.

[0010] The beneficial effects of this technical solution are: by using a linkage mechanism to drive the base plate to rotate, the purpose of adjusting the illumination tilt angle of the lamp panel can be achieved.

[0011] Furthermore, the linkage mechanism includes a second driving device, a driving rod, and a connecting rod. One end of the connecting rod is hinged to the driving rod, and the other end is hinged to the upper surface of the base plate. The second driving device drives the driving rod to rotate, and the driving rod drives the connecting rod to move so as to drive the base plate to rotate around its hinge axis.

[0012] Furthermore, there are two base plates, which are symmetrically hinged to the two side plates. There are two connecting rods, one end of which is coaxially hinged to the drive rod, and the other end is hinged to the upper surface of the two base plates respectively.

[0013] The beneficial effects of this technical solution are: by driving the linkage mechanism to rotate through the second drive device, the two base plates are controlled to rotate in two different directions, thereby enabling the LED light to adjust the illumination angle in two directions at the same time, so as to meet the growth needs of crops on both sides of the LED light simultaneously.

[0014] Furthermore, it includes a first controller, the first drive device being electrically connected to the first controller for controlling the raising, lowering, and stopping of the lamp assembly bracket.

[0015] Furthermore, it also includes a second controller, the second drive device being electrically connected to the second controller for controlling the rotation of the base plate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an LED lamp according to the present invention; Figure 2 This is a schematic diagram of the internal structure of an LED lamp according to the present invention; Figure 3 A schematic diagram of the structure of a rigid chain in the meshing state at the end; Figure 4 for Figure 3 A magnified view of a portion of region A in the middle; In the diagram: 1. Rigid chain lifting device; 11. Rigid chain; 12. First drive device; 121. Output shaft; 13. Gear; 14. Housing; 141. Guide plate; 15. Spring pin; 16. Chain link hole; 2. Lamp bracket; 21. Top plate; 22. Side plate; 23. Bottom plate; 241. Drive rod; 242. Connecting rod; 25. Second drive device; 3. LED light panel. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0021] An embodiment of the LED lamp of this utility model: as follows Figures 1-2 As shown, an LED lamp includes a lamp assembly bracket 2, with at least one LED lamp panel 3 fixedly mounted on the bottom of the lamp assembly bracket 2; it also includes a rigid chain lifting device 1, which includes a housing 14, a rigid chain 11, a gear 13, and a first drive device 12. The housing 14 has two guide plates 141 inside, and the rigid chain 11 comprises two symmetrically arranged chains within the housing 14, sliding along the corresponding guide plates 141. At least one of the two rigid chains 11 has a transmission mechanism on its outer side that meshes with the gear 13. The moving teeth, the inner sides of the two steel chains 11 are respectively provided with corresponding hook teeth for hooking and meshing; the lower end of the steel chain 11 extends out of the housing 14 and is fixedly connected to the middle of the lamp bracket 2. The gear 13 is fixedly connected to the output shaft 121 of the first drive device 12. The gear 13 drives the steel chain 11 to extend or retract from the housing 14 by meshing with the transmission teeth of the steel chain 11. When the steel chain 11 extends out of the housing 14, the hook teeth of the two steel chains 11 mesh with each other so that a part of the steel chain 11 extending out of the housing 14 is converted into a rigid structure.

[0022] In this embodiment, the links of the rigid chain 11 have built-in permanent magnets, and the output shaft 121 of the first drive device 12 is equipped with a Hall sensor. The Hall sensor is used to count the number of links to detect the end of the chain in place and to send a feedback signal to the controller. The controller automatically cuts off the power supply to prevent the rigid chain 11 from falling due to the end of the chain exceeding its travel.

[0023] The housing 14 also includes a chain end limiting device, which includes a spring pin 15 disposed on a guide plate 141 opposite to the gear 13 or on a guide plate 141 above the gear 13, and a link hole 16 formed on the end link of the rigid chain 11 to cooperate with the spring pin 15. Figure 4 As shown, gear 13 meshes with the right-side rigid chain 11. Spring pin 15 is set on the left-side guide plate 141, which is opposite to gear 13. When the end of the left-side rigid chain 11 is in place, spring pin 15 engages with the end link hole 16 to lock, further preventing the end of the chain from exceeding its travel and causing the rigid chain 11 to fall.

[0024] The two rigid chains 11 in the meshing state can form a rigid column that can withstand great axial pressure, lateral force and bending moment without bending, shaking or instability, thus stabilizing the lamp panel and achieving the effect of preventing swaying. The two rigid chains 11 in the non-meshing state are flexible structures that can be tightly wound along the guide plate 141 inside the housing 14, making the overall installation space, especially in the height direction, very small.

[0025] In this embodiment, as Figures 1-2 As shown, the lamp assembly bracket 2 includes a top plate 21, a bottom plate 23, and a side plate 22. One side of the bottom plate 23 is hinged to the lower part of the side plate 22 via a hinge shaft. The LED lamp disk 3 is mounted on the lower surface of the bottom plate 23. The lamp assembly bracket 2 is provided with a linkage mechanism for driving the bottom plate 23 to rotate around the hinge shaft. The linkage mechanism includes a second driving device 25, a driving rod 241, and a connecting rod 242. One end of the connecting rod 242 is hinged to the driving rod 241, and the other end is hinged to the upper surface of the bottom plate 23. The second driving device 25 drives the driving rod 241 to rotate, and the driving rod 241 drives the connecting rod 242 to move, thereby causing the bottom plate 23 to rotate around its hinge shaft. Figure 2 As shown, there are two base plates 23, which are symmetrically hinged to the side plates 22 on both sides. There are two connecting rods 242, one end of which is coaxially hinged to the driving rod 241, and the other end is hinged to the upper surface of the two base plates 23 respectively. The second driving device 25 drives the linkage mechanism to rotate, controlling the two base plates 23 to rotate in two different directions, thereby realizing the simultaneous adjustment of the light tilt angle of the LED lamp in two directions to meet the growth needs of the crops on both sides of the LED lamp.

[0026] In this embodiment, the LED light also includes a first controller and a second controller. The first drive device 12 is electrically connected to the first controller and is used to control the raising, lowering, and stopping of the light assembly bracket 2. The second drive device 25 is electrically connected to the second controller and is used to control the rotation of the base plate 23. Both the first drive device 12 and the second drive device 25 are worm gear reducers with bidirectional rotation function and self-locking function when stopped.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. An LED lamp, comprising a lamp assembly bracket, wherein at least one LED lamp panel is fixedly mounted on the bottom of the lamp assembly bracket; characterized in that, It also includes a rigid chain lifting device, which comprises a housing, a rigid chain, a gear, and a first drive device. The housing has two guide plates, and the rigid chain comprises two symmetrically arranged within the housing, which slide along the corresponding guide plates. At least one of the two rigid chains has a transmission tooth on its outer side that meshes with the gear, and the inner sides of the two rigid chains each have a corresponding hook tooth for hooking. The lower end of the rigid chain extends out of the housing and is fixedly connected to the middle of the lamp bracket. The gear is fixedly connected to the output shaft of the first drive device. The gear meshes with the transmission tooth of the rigid chain to drive the rigid chain to extend or retract from the housing. When the rigid chain extends out of the housing, the hook teeth of the two rigid chains mesh with each other to convert a portion of the rigid chain extending out of the housing into a rigid structure.

2. The LED lamp according to claim 1, characterized in that, The rigid chain links have built-in permanent magnets, and a Hall sensor is provided on the output shaft of the first drive device. The Hall sensor is used to count the number of chain links.

3. An LED lamp according to claim 1 or 2, characterized in that, The housing also includes a chain end limiting device, which includes a spring pin on a guide plate positioned opposite to the gear or on a guide plate above the gear, and a link hole on the end link of the rigid chain that mates with the spring pin.

4. An LED lamp according to claim 1, characterized in that, The lamp assembly bracket includes a top plate, a bottom plate, and a side plate. One side of the bottom plate is hinged to the lower part of the side plate via a hinge shaft. The LED lamp panel is mounted on the lower surface of the bottom plate. The lamp assembly bracket is provided with a linkage mechanism for driving the bottom plate to rotate around the hinge shaft.

5. An LED lamp according to claim 4, characterized in that, The linkage mechanism includes a second driving device, a driving rod, and a connecting rod. One end of the connecting rod is hinged to the driving rod, and the other end is hinged to the upper surface of the base plate. The second driving device drives the driving rod to rotate, and the driving rod drives the connecting rod to move so as to make the base plate rotate around its hinge axis.

6. An LED lamp according to claim 5, characterized in that, There are two base plates, which are symmetrically hinged to the two side plates. There are two connecting rods, one end of which is coaxially hinged to the drive rod, and the other end is hinged to the upper surface of the two base plates respectively.

7. An LED lamp according to claim 1, characterized in that, It includes a first controller, and the first drive device is electrically connected to the first controller for controlling the raising, lowering and stopping of the lamp bracket.

8. An LED lamp according to claim 5, characterized in that, It also includes a second controller, the second drive device being electrically connected to the second controller, for controlling the rotation of the base plate.

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