Variable-focus LED control device based on guide rail

Abstract

The utility model discloses a variable-focus LED control device based on a guide rail, which comprises a bottom plate, a first supporting plate, a second supporting plate, a first guide rail, a second guide rail and a screw rod, and is characterized in that the first supporting plate and the second supporting plate are arranged on the bottom plate; the two ends of the first guide rail are fixedly matched with the first supporting plate and the second supporting plate respectively, and the two ends of the second guide rail are fixedly matched with the first supporting plate and the second supporting plate respectively. The distance measuring probe is arranged on one side of the mounting plate and used for measuring the distance between the second supporting plate and the spiral matching block, the influence of light of the LED lamp set in the measuring process is avoided, and measurement is relatively more reliable.

Description

Technical Field

[0001] This utility model relates to the field of focus control, and in particular to a variable focus LED control device based on a guide rail. Background Technology

[0002] Variable focus LED lights are a commonly used type of lighting fixture. Because the LED light group needs to move during zooming, current variable focus LED lights require tools to precisely adjust the position of the LED light group. The commonly used tool for adjusting the LED light group position is a lead screw guide assembly. The structure of a commonly used lead screw guide assembly is shown in patent publication document CN104596384B. This type of lead screw guide device operates stably and reliably. However, there is a problem when using this type of lead screw guide device in variable focus LED lights. Because this lead screw guide device measures the slider position using laser ranging or infrared ranging, both of which are essentially based on reflection ranging, this type of lead screw guide cannot block the LED light. Therefore, the ranging device may experience interference from the LED light, resulting in inaccurate ranging. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a variable-focus LED control device based on a guide rail. By setting the LED light group and the spiral mating block on opposite sides of the mounting plate, and placing the distance measuring probe on one side of the mounting plate, the distance measuring probe is used to measure the distance between the second support plate and the spiral mating block. This avoids the influence of the LED light group's light during the measurement process, making the measurement more reliable.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A rail-based variable-focus LED control device includes a base plate, a first support plate, a second support plate, a first guide rail, a second guide rail, and a screw. The first and second support plates are both mounted on the base plate. The two ends of the first guide rail are fixedly engaged with the first and second support plates, respectively. The two ends of the second guide rail are also fixedly engaged with the first and second support plates, respectively. The two ends of the screw are rotatably engaged with the first and second support plates, respectively. The device also includes a mounting plate, a first mating slider, a second mating slider, and a helical mating block. The first mating slider, the second mating slider, and the helical mating block are all mounted on the mounting plate. The first mating slider slides with the first guide rail through its through-hole, and the second mating slider slides with the second guide rail through its through-hole. The helical mating block engages with the screw. A ranging probe is mounted on either the first or second support plate, with the ranging probe located on one side of the mounting plate. The other side of the mounting plate is used to mount LED light groups.

[0006] In this device, a ranging probe is provided. The ranging probe is a laser ranging probe, which is specifically installed on the second support plate. The ranging probe is used to measure the distance between the second support plate and the spiral mating block. The mounting plate is used to install LED light groups. After the LED light groups are installed on the mounting plate, the light emitted by the LED light groups is directed towards the first support plate, and the LED light groups are located above the mounting plate. The spiral mating block is located below the mounting plate. The mounting plate itself is not transparent, thus avoiding the influence of the LED light groups on the ranging probe.

[0007] In this device, when the screw rotates, it can drive the mounting plate to move back and forth along the screw. The first guide rail is in sliding engagement with the first mating slider, and the second guide rail is in sliding engagement with the second mating slider to achieve stable guidance.

[0008] In summary, this device, by placing the LED light group and the spiral mating block on opposite sides of the mounting plate and setting the distance measuring probe on one side of the mounting plate, avoids the influence of the LED light group's light during the measurement process, making the measurement more reliable.

[0009] Optionally, both the first guide rod and the second guide rod are cylindrical, and the through holes on both the first and second mating sliders are circular holes.

[0010] Both the first and second guide rods are cylindrical, and the through holes on the first and second mating sliders are round holes. This ensures smoother sliding between the mating sliders and the guide rods.

[0011] Optionally, there are two first mating sliders and two second mating sliders, with the first and second mating sliders located at the four corners of the square, and the spiral mating block located at the center of the square.

[0012] There are four mating sliders in total, located at the four corners of the mounting plate. These four sliders can stably support the mounting plate, ensuring a low probability of misalignment during movement.

[0013] Optionally, it also includes a drive motor, which is mounted on the first support plate or the second support plate, and the drive motor is linked to the screw through gears.

[0014] The function of the drive motor is to drive the screw to rotate.

[0015] Optionally, both the first and second mating sliders are in close contact with the base plate.

[0016] The first and second mating sliders can slide relative to the base plate, and the first and second mating sliders are used to support the mounting plate.

[0017] Optionally, it also includes a detection column, which is disposed on the helical mating block and located between the helical mating block and the base plate. The detection column does not contact the base plate and is located on the same straight line as the ranging probe.

[0018] Specifically, the ranging probe measures the distance between the detection column and the second support plate.

[0019] Optionally, the detection column and the ranging probe are both located on the same side of the screw.

[0020] Optionally, both the first support plate and the second support plate are perpendicular to the base plate, and the first support plate and the second support plate are in a parallel state.

[0021] Optionally, the first guide rail, the second guide rail, and the screw are in a parallel and contacting state, and the distance between the first guide rail and the screw is equal to the distance between the second guide rail and the screw.

[0022] The beneficial effects of this utility model are: by setting the LED light group and the spiral mating block on both sides of the mounting plate respectively, and setting the distance measuring probe on one side of the mounting plate, the distance measuring probe is used to measure the distance between the second support plate and the spiral mating block, thus avoiding the influence of the light of the LED light group during the measurement process, and the measurement is relatively more reliable. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a simplified structural diagram of a rail-based variable focus LED control device.

[0025] Figure 2 This is a schematic diagram showing the fit between the guide rail and the sliding block;

[0026] Figure 3 yes Figure 2 A simplified enlarged diagram of point A in the middle.

[0027] The attached figures are labeled as follows: 1. Base plate; 2. First guide rail; 3. Screw; 4. Distance measuring probe; 5. Second support plate; 6. Second guide rail; 7. Mounting plate; 8. First mating slider; 9. Second mating slider; 10. First support plate; 11. Gear; 12. Motor; 13. Helical mating block; 1301. Detection column. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, a variable-focus LED control device based on a guide rail includes a base plate 1, a first support plate 10, a second support plate 5, a first guide rail 2, a second guide rail 6, and a screw 3. The first support plate 10 and the second support plate 5 are both mounted on the base plate 1. Both ends of the first guide rail 2 are fixedly engaged with the first support plate 10 and the second support plate 5, respectively. Both ends of the second guide rail 6 are fixedly engaged with the first support plate 10 and the second support plate 5, respectively. Both ends of the screw 3 are rotatably engaged with the first support plate 10 and the second support plate 5, respectively. The device also includes a mounting plate 7. The first mating slider 8, the second mating slider 9, and the spiral mating block 13 are all mounted on the mounting plate 7. The first mating slider 8 slides with the first guide rail 2 through its own through hole, the second mating slider 9 slides with the second guide rail 6 through its own through hole, and the spiral mating block 13 is mated with the screw 3. The ranging probe 4 is mounted on the first support plate 10 or the second support plate 5, and the ranging probe 4 is located on one side of the mounting plate 7. The other side of the mounting plate 7 is used to mount the LED light group.

[0032] In this device, a ranging probe 4 is provided. The ranging probe 4 is a laser ranging probe 4, which is specifically installed on the second support plate 5. The ranging probe 4 is used to measure the distance between the second support plate 5 and the spiral mating block 13. The mounting plate 7 is used to install the LED light group. After the LED light group is installed on the mounting plate 7, the light emitted by the LED light group is directed towards the first support plate 10, and the LED light group is located above the mounting plate 7. The spiral mating block 13 is located below the mounting plate 7. The mounting plate 7 itself is not transparent, thus avoiding the influence of the LED light group on the ranging probe 4.

[0033] In this device, when the screw 3 rotates, it can drive the mounting plate 7 to move back and forth along the screw 3. The first guide rail 2 is in sliding engagement with the first mating slider 8, and the second guide rail 6 is in sliding engagement with the second mating slider 9 to achieve stable guidance.

[0034] In summary, this device, by setting the LED light group and the spiral mating block 13 on both sides of the mounting plate 7 respectively, and setting the distance measuring probe 4 on one side of the mounting plate 7, uses the distance measuring probe 4 to measure the distance between the second support plate 5 and the spiral mating block 13, thus avoiding the influence of the light from the LED light group during the measurement process, making the measurement relatively more reliable.

[0035] As attached Figure 1 Appendix Figure 2 and appendix Figure 3As shown, both the first guide rod and the second guide rod are cylindrical, and the through holes on the first mating slider 8 and the second mating slider 9 are circular holes.

[0036] Both the first guide rod and the second guide rod are cylindrical, and the through holes on the first mating slider 8 and the second mating slider 9 are round holes. This ensures that the mating slider slides more smoothly relative to the guide rod.

[0037] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, there are two first mating sliders 8 and two second mating sliders 9. The first mating sliders 8 and the second mating sliders 9 are located at the four corners of the square, and the spiral mating block 13 is located at the center point of the square.

[0038] There are four mating sliders, which are located at the four corners of the mounting plate 7. The four mating sliders can stably support the mounting plate 7, ensuring that the probability of the mounting plate 7 swaying during movement is low.

[0039] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, it also includes a drive motor 12, which is mounted on the first support plate 10 or the second support plate 5. The drive motor 12 is linked to the screw 3 through a gear 11.

[0040] The function of drive motor 12 is to drive screw 3 to rotate.

[0041] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, both the first mating slider 8 and the second mating slider 9 are tightly attached to the base plate 1.

[0042] The first mating slider 8 and the second mating slider 9 can slide relative to the base plate 1, and the first mating slider 8 and the second mating slider 9 are used to support the mounting plate 7.

[0043] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, it also includes a detection column 1301, which is set on the helical mating block 13. The detection column 1301 is located between the helical mating block 13 and the base plate 1. The detection column 1301 does not contact the base plate 1. The detection column 1301 and the ranging probe 4 are located on the same straight line.

[0044] Specifically, the ranging probe 4 measures the distance between the detection column 1301 and the second support plate 5.

[0045] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the detection column 1301 and the ranging probe 4 are both located on the same side of the screw 3.

[0046] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, both the first support plate 10 and the second support plate 5 are perpendicular to the base plate 1, and the first support plate 10 and the second support plate 5 are in a parallel state.

[0047] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the first guide rail 2, the second guide rail 6, and the screw 3 are in a parallel and contacting state, and the distance between the first guide rail 2 and the screw 3 is equal to the distance between the second guide rail 6 and the screw 3.

[0048] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A variable-focus LED control device based on a guide rail, comprising a base plate, a first support plate, a second support plate, a first guide rail, a second guide rail, and a screw, wherein the first support plate and the second support plate are both disposed on the base plate, the two ends of the first guide rail are fixedly engaged with the first support plate and the second support plate respectively, the two ends of the second guide rail are fixedly engaged with the first support plate and the second support plate respectively, and the two ends of the screw are rotatably engaged with the first support plate and the second support plate respectively, characterized in that, It also includes a mounting plate, a first mating slider, a second mating slider, and a spiral mating block. The first mating slider, the second mating slider, and the spiral mating block are all disposed on the mounting plate. The first mating slider is slidably engaged with the first guide rail through its own through hole. The second mating slider is slidably engaged with the second guide rail through its own through hole. The spiral mating block is engaged with the screw. The ranging probe is disposed on the first support plate or the second support plate, and the ranging probe is located on one side of the mounting plate. The other side of the mounting plate is used to install the LED light group.

2. The variable focus LED control device based on a guide rail according to claim 1, characterized in that, Both the first guide rod and the second guide rod are cylindrical, and the through holes on the first and second mating sliders are circular holes.

3. The variable focus LED control device based on a guide rail according to claim 1, characterized in that, There are two first mating sliders and two second mating sliders. The first and second mating sliders are located at the four corners of the square, and the spiral mating block is located at the center of the square.

4. The variable focus LED control device based on a guide rail according to claim 1, characterized in that, It also includes a drive motor, which is mounted on the first support plate or the second support plate, and the drive motor is linked to the screw through gears.

5. A variable-focus LED control device based on a guide rail according to claim 1, characterized in that, Both the first and second mating sliders are in close contact with the base plate.

6. The variable focus LED control device based on a guide rail according to claim 1, characterized in that, It also includes a detection column, which is disposed on the helical mating block. The detection column is located between the helical mating block and the base plate. The detection column does not contact the base plate. The detection column and the ranging probe are located on the same straight line.

7. A variable-focus LED control device based on a guide rail according to claim 6, characterized in that, The detection column and the ranging probe are both located on the same side of the screw.

8. A variable-focus LED control device based on a guide rail according to claim 1, characterized in that, Both the first support plate and the second support plate are perpendicular to the base plate, and the first support plate and the second support plate are in a parallel state.

9. A variable focus LED control device based on a guide rail according to claim 1, characterized in that, The first guide rail, the second guide rail, and the screw are in a parallel and contacted state, and the distance between the first guide rail and the screw is equal to the distance between the second guide rail and the screw.

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