A low-noise lamp reset structure and control method thereof

Abstract

The invention discloses a low-noise lamp reset structure and a control method thereof, wherein the low-noise lamp reset structure comprises a pivot shaft and a pivot member pivotally connected to the pivot shaft, the pivot shaft is fixedly connected with a driving wheel and is sleeved with a lever; a first detection mark is arranged on the lever, and a first detector for detecting the first detection mark is arranged on the pivot member; a first limit column for limiting the lever is also arranged on the driving wheel, and an elastic member for supporting the lever and a second limit column for limiting the lever are also arranged on the pivot member, during the relative movement of the pivot member and the pivot shaft, the second limit column, the elastic member and the first limit column do not interfere with each other; during the resetting process, since the second limit column is not required to touch the lever supported by the first limit column, the pivot member will not rebound under the action of the reaction force, thereby avoiding the "click, click, click..." noise caused by multiple collisions, and the resetting process is quieter.

Description

Technical Field

[0001] The present invention relates to the technical field of stage lamps, and more particularly to a low-noise lamp resetting structure and a control method thereof. Background Art

[0002] A stage light generally includes a support arm pivotally connected to a chassis and a lamp head pivotally connected to the support arm. When the stage light is powered on and reset, the lamp head and / or the support arm need to be reset to zero to clearly define the initial position, and a mechanical limit structure will be made in the clockwise and counterclockwise rotation directions to prevent the lamp from rotating infinitely and thus breaking the electronic wires inside.

[0003] At present, when the support arm of the stage light is reset, it will first rotate in a specified direction until it hits the limit structure and cannot continue to rotate. At this time, the driving motor shaft of the support arm cannot continue to rotate, so the feedback device cannot provide normal feedback signals. The system cannot receive normal signals from the feedback device and determines that the lamp has reached the limit position of the limit structure, and defines this position as the initial position.

[0004] However, this reset method has a relatively large flaw. After the support arm collides with the limit structure at a certain speed, it will bounce back. Then, driven by the drive motor, it will collide with the limit structure again, and then rebound again. This process will be repeated many times, and a "da, da, da..." noise will be emitted, which is very obvious. Summary of the invention

[0005] In order to overcome at least one defect of the prior art, the present invention provides a low-noise lamp resetting structure. When the lamp is reset, it does not need to hard-collision with a limiting structure, thereby avoiding noise.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a low-noise lamp reset structure, comprising a pivot shaft and a pivot member pivotally connected to the pivot shaft, the pivot member has a first rotation direction and a second rotation direction in opposite directions relative to the pivot shaft, the pivot shaft is connected to a relatively fixed driving wheel and is sleeved with a lever, and the lever can rotate freely relative to the pivot shaft;

[0007] The lever is provided with a first detection marker, and the pivot member is correspondingly provided with a first detector for detecting the first detection marker;

[0008] The driving wheel is also provided with a first limiting column for limiting the lever, and the pivoting member is also provided with an elastic member capable of resisting the lever and a second limiting column for limiting the lever, the resisting end of the elastic member and the second limiting column are respectively located on both sides of the first detector, and the second limiting column, the first detector and the resisting end are sequentially arranged along the first rotation direction, and during the relative movement between the pivoting member and the pivot shaft, the second limiting column, the elastic member and the first limiting column do not interfere with each other;

[0009] When one side of the shifting rod is blocked by the first limiting column and the other side squeezes the elastic member, the elastic member is deformed in the second rotation direction so that the first detector detects the first detection mark on the shifting rod.

[0010] The first limiting column of the low-noise lamp reset structure is fixed to the driving wheel on the pivot shaft, the second limiting column, the first detector, and the elastic member are all fixed to the pivot shaft, the pivot shaft has a first rotation direction and a second rotation direction in opposite directions relative to the pivot shaft, the lever is sleeved on the pivot shaft and can rotate freely relative to the pivot shaft; since the second limiting column, the first detector, and the abutting end of the elastic member are sequentially arranged along the first rotation direction, when the pivot shaft rotates relative to the pivot shaft in the first rotation direction, the abutting end of the elastic member will push the lever to rotate together after touching the lever until one side of the lever is blocked by the first limiting column; as the pivot shaft continues to rotate relative to the pivot shaft in the first rotation direction, the elastic member deforms toward the second rotation direction, so that the first detector detects the first detection mark on the lever, generates a first reset signal, and defines this position as a preliminary initial position, and uses the preliminary initial position as the reset position. Since the second limiting column does not need to touch the lever supported by the first limiting column, the pivot member will not rebound under the action of the reaction force, avoiding the "click, click, click..." noise caused by multiple collisions, and the reset process is quieter.

[0011] Further, the driving wheel is provided with a second detection mark, and the pivoting member is correspondingly provided with a second detector for detecting the second detection mark. After the first detector detects the first detection mark on the lever and generates a first reset signal, the system drives the pivoting member to rotate relative to the pivot axis in the second rotation direction, the abutting end of the elastic member abuts the lever to keep the lever stationary, and the first detector moves away from the first detection mark until the second detector detects the second detection mark on the driving wheel, and generates a second reset signal, and this position is the precise initial position. Since the lever is sleeved on the pivot axis, the lever may have a friction problem with the pivoting member. As the pivoting member rotates relative to the pivot axis, if the initial initial position is used as the reset position, the reset is easy to deviate from the predetermined position. With the first reset signal as a mark, the position where the second detector first generates the second reset signal when the pivoting member rotates relative to the pivot axis in the second rotation direction is used as the precise initial position. With the precise initial position as the reset position, the system has better stability, no deviation, and more accurate reset.

[0012] Furthermore, the second detector, the second limiting column, the first detector, and the abutting end on the pivot member are sequentially arranged along the first rotation direction, and the second detection marker and the first limiting column on the driving wheel are also sequentially arranged along the first rotation direction.

[0013] Furthermore, the second detection marker is a magnet, the second detector is a magnetic sensitive switch, and / or the first detection marker is a magnet, the first detector is a magnetic sensitive switch. Magnetic induction is not easily disturbed by sound, light and non-magnetic materials, and has higher stability.

[0014] Furthermore, the second detection marker and the second detector are both located on the side of the driving wheel away from the lever, and the first detection marker and the first detector are both located on the side of the lever away from the driving wheel, so that the two detection systems are independent of each other, and the second detection marker is prevented from affecting the first detector, and the first detection marker is prevented from affecting the second detector.

[0015] Furthermore, the minimum distance between the second limiting column, the elastic member and the center of the pivot axis is greater than the maximum distance between the first limiting column and the center of the pivot axis. Thus, when the second limiting column and the elastic member rotate relative to the pivot axis, they will not touch the first limiting column, thereby affecting the relative rotation between the pivot element and the pivot axis.

[0016] Furthermore, when the first detector detects the first detection mark, the second limit post and the lever do not contact each other. That is, there is a certain distance between the second limit post and the first detector, so that when the first detector detects the first detection mark, the second limit post will not squeeze the lever and emit a collision noise.

[0017] Furthermore, the pivot shaft is fixed, the pivot member rotates around the pivot shaft, the pivot member drives the second limiting column, the first detector and the elastic member arranged thereon to rotate together, and the pivot shaft and the driving wheel and the first limiting column arranged thereon are fixed.

[0018] Furthermore, the pivotal member is a support arm or a lamp head of a stage light. A stage light generally includes a support arm pivotally connected to a chassis and a lamp head pivotally connected to the support arm. The low-noise lamp reset structure can be used on the reset structure of the support arm or the reset structure of the lamp head.

[0019] The present invention also provides a control method for any of the above-mentioned low-noise lamp reset structures, comprising the following steps:

[0020] S1, driving the pivot member to rotate relative to the pivot axis in a first rotation direction, so that the abutting end of the elastic member pushes the lever to rotate together, until one side of the lever is blocked by the first limiting column;

[0021] S2, continue to drive the pivot member to rotate relative to the pivot axis in the first rotation direction, the other side of the lever abuts against the abutting end to deform the elastic member in the second rotation direction, so that the first detector detects the first detection mark on the lever and generates a first reset signal;

[0022] S3, driving the pivot member to rotate in the second rotation direction relative to the pivot axis, the abutting end of the elastic member abuts the shift rod to keep the shift rod stationary, the first detector moves away from the first detection mark, and the resetting is completed.

[0023] Since the second limiting column does not need to touch the lever supported by the first limiting column, the pivot member will not rebound under the action of the reaction force, avoiding the "click, click, click..." noise caused by multiple collisions, and the reset process is quieter.

[0024] Furthermore, a second detection marker is provided on the driving wheel, and a second detector for detecting the second detection marker is correspondingly provided on the pivot member;

[0025] In step S3, after the first detector moves away from the first detection mark, it continues to drive the pivot member to rotate in the second rotation direction relative to the pivot axis until the second detector detects the second detection mark on the driving wheel and generates a second reset signal to complete the reset.

[0026] Since the lever is mounted on the pivot shaft, the lever may have friction with the pivot member. As the pivot member rotates relative to the pivot shaft, if the position of the first detection mark on the lever detected by the first detector is used as the reset position, the reset may easily deviate from the predetermined position. When the pivot member is rotated in the second rotation direction relative to the pivot shaft using the first reset signal as a mark, the position where the second detector first generates the second reset signal is used as the precise initial position. By using the precise initial position as the reset position, the system has better stability, no deviation, and more accurate reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the exploded structure of the low-noise lamp resetting structure of the present invention.

[0028] Figure 2 yes Figure 1 Magnified view of area A.

[0029] Figure 3 It is a schematic diagram of the exploded structure of the low-noise lamp resetting structure of the present invention from another angle.

[0030] Figure 4 It is a partial cross-sectional view of the low-noise lamp resetting structure of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the present invention in which the pivot member is in a first position relative to the pivot axis.

[0032] Figure 6 It is a structural schematic diagram of the pivot member of the present invention being in a second position relative to the pivot axis.

[0033] Figure 7 It is a structural schematic diagram of the pivot member of the present invention being in a third position relative to the pivot axis.

[0034] Figure 8 It is a structural schematic diagram of the pivot member of the present invention being in a fourth position relative to the pivot axis.

[0035] Fig. 9 It is a structural schematic diagram of the pivotal member of the present invention being in the fifth position relative to the pivot axis.

[0036] In the figure:

[0037] 100, pivot member; 110, first detector; 120, second limit column; 130, elastic member; 140, second detector; 200, pivot shaft; 210, drive wheel; 220, first limit column; 230, second detection marker; 300, lever; 310, first detection marker; 320, limit cylinder. DETAILED DESCRIPTION

[0038] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0039] like Figures 1 to 3 The present invention provides a low-noise lamp reset structure, comprising a pivot shaft 200 and a pivot member 100 pivotally connected to the pivot shaft 200, wherein the pivot member 100 has a first rotation direction and a second rotation direction opposite to the pivot shaft 200, and the pivot shaft 200 is connected to a relatively fixed driving wheel 210 and is sleeved with a lever 300, and the lever 300 can rotate freely relative to the pivot shaft 200;

[0040] The lever 300 is provided with a first detection marker 310 , and the pivot member 100 is correspondingly provided with a first detector 110 for detecting the first detection marker 310 ;

[0041] The driving wheel 210 is also provided with a first limiting column 220 for limiting the lever 300, and the pivoting member 100 is also provided with an elastic member 130 for resisting the lever 300 and a second limiting column 120 for limiting the lever 300, the resisting end of the elastic member 130 and the second limiting column 120 are respectively located on both sides of the first detector 110, and the second limiting column 120, the first detector 110, and the resisting end are sequentially arranged along the first rotation direction, and during the relative movement of the pivoting member 100 and the pivot shaft 200, the second limiting column 120, the elastic member 130 and the first limiting column 220 do not interfere with each other;

[0042] When one side of the lever 300 is blocked by the first limiting column 220 and the other side squeezes the elastic member 130 , the elastic member 130 deforms in the second rotation direction (i.e., the direction close to the second limiting column 120 ) so that the first detector 110 detects the first detection mark 310 on the lever 300 .

[0043] The first limiting column 220 of the low-noise lamp reset structure is fixed to the driving wheel 210 on the pivot shaft 200, the second limiting column 120, the first detector 110, and the elastic member 130 are all fixed to the pivot member 100, the pivot member 100 has a first rotation direction and a second rotation direction in opposite directions relative to the pivot shaft 200, the lever 300 is sleeved on the pivot shaft 200, and can rotate freely relative to the pivot shaft 200; since the abutting ends of the second limiting column 120, the first detector 110, and the elastic member 130 are sequentially arranged along the first rotation direction, when the pivot member 100 rotates relative to the pivot shaft 200 in the first rotation direction (such as Figure 5 ), after the abutting end of the elastic member 130 touches the lever 300, it pushes the lever 300 to rotate together until one side of the lever 300 is blocked by the first limiting column 220 (such as Figure 6 As the pivot member 100 continues to rotate relative to the pivot shaft 200 in the first rotation direction, the elastic member 130 deforms in the second rotation direction, so that the first detector 110 detects the first detection marker 310 (such as Figure 7 ), a first reset signal is generated, and this position is defined as a preliminary initial position, and the preliminary initial position is used as the reset position. Since the second limiting column 120 does not need to touch the lever 300 supported by the first limiting column 220, the pivot member 100 will not rebound under the action of the reaction force, avoiding the "click, click, click..." noise caused by multiple collisions, and the reset process is quieter.

[0044] If the pivot member 100 continues to rotate in the first rotation direction relative to the pivot axis 200, the second limit column 120 will abut against the lever 300, and since the other side of the lever 300 is blocked by the first limit column 220, the pivot member 100 cannot continue to rotate relative to the pivot axis 200, and the minimum relative rotation angle is reached at this time.

[0045] Optionally, the first rotation direction refers to a counterclockwise direction, and the second rotation direction refers to a clockwise direction.

[0046] Optionally, the driving wheel 210 is a synchronous wheel, which is driven by a synchronous belt.

[0047] Optionally, the elastic member 130 is a spring sheet with a bent end, and the bent portion forms the abutting end.

[0048] Alternatively, if Figure 4The lever 300 is sleeved on a limiting cylinder 320 , and both ends of the limiting cylinder 320 have blocking parts to limit the lever 300 from shaking along the length direction of the limiting cylinder 320 . The limiting cylinder 320 is sleeved on the pivot shaft 200 .

[0049] In a preferred embodiment of the present invention, the driving wheel 210 is provided with a second detection mark 230, and the pivot member 100 is correspondingly provided with a second detector 140 for detecting the second detection mark 230. After the first detector 110 detects that the first detection mark 310 on the lever 300 generates a first reset signal (such as Figure 7 ), the system drives the pivot member 100 to rotate relative to the pivot shaft 200 in the second rotation direction, the abutting end of the elastic member 130 abuts the lever 300 to keep the lever 300 stationary, and the first detector 110 moves away from the first detection mark 310 until the second detector 140 detects the second detection mark 230 (such as Figure 8 ), a second reset signal will be generated, and this position is the precise initial position. Since the lever 300 is sleeved on the pivot shaft 200, the lever 300 may have friction with the pivot member 100. As the pivot member 100 rotates relative to the pivot shaft 200, if the initial initial position is used as the reset position, the reset is likely to deviate from the predetermined position. With the first reset signal as a mark, when the pivot member 100 rotates relative to the pivot shaft 200 in the second rotation direction, the position where the second detector 140 first generates the second reset signal is used as the precise initial position. With the precise initial position as the reset position, the system stability is better, there will be no deviation, and the reset is more accurate.

[0050] The pivot member 100 is continuously driven to rotate relative to the pivot shaft 200 in the second rotation direction. After the pivot member 100 rotates approximately 360° relative to the pivot shaft 200 in the second rotation direction, the second limiting column 120 pushes the lever 300 to rotate together. Finally, the lever 300 is blocked by the first limiting column 220 (e.g., Fig. 9 ), thereby limiting the pivot member 100 from continuing to rotate relative to the pivot axis 200, at which time the maximum relative rotation angle is reached.

[0051] In a preferred embodiment of the present invention, the second detector 140, the second limiting column 120, the first detector 110 and the abutting end on the pivot member 100 are sequentially arranged along the first rotation direction, and the second detection marker 230 and the first limiting column 220 on the driving wheel 210 are also sequentially arranged along the first rotation direction. At this time, with the center of the pivot shaft 200 as the center of the circle, along the first rotation direction, the central angle of the sector from the second detection marker 230 to the first limiting column 220 is less than 180°.

[0052] Further, with the center of the pivot shaft 200 as the center of the circle, along the first rotation direction, the central angle of the sector from the second detection mark 230 to the first limit column 220 is less than 120°, preferably 60°, and when the first detector 110 detects the first detection mark 310 on the lever 300, the central angle between the second detection mark 230 and the first detector 110 is greater than the central angle between the second detector 140 and the first detector 110. In this way, after the first detector 110 detects the first detection mark 310 on the lever 300 and generates a first reset signal, the pivot member 100 only needs to rotate a smaller angle relative to the pivot shaft 200 in the second rotation direction and can detect the second detection mark 230, and reset faster.

[0053] In a preferred embodiment of the present invention, the second detection marker 230 is a magnet, the second detector 140 is a magnetic sensitive switch, and / or the first detection marker 310 is a magnet, and the first detector 110 is a magnetic sensitive switch. Magnetic induction is not easily disturbed by sound, light, and non-magnetic materials, and has higher stability.

[0054] In other embodiments, the second detection marker 230 and / or the first detection marker 310 may also be a color mark, a touch point, etc., and the second detector 140 and / or the first detector 110 may correspond to a light intensity sensor, a touch switch light, etc.

[0055] When the second detection marker 230 and the first detection marker 310 are both magnets, and the second detector 140 and the first detector 110 are both magnetic switches, the second detection marker 230 and the first detection marker 310 are at different distances from the center of the pivot axis 200 to avoid mutual influence. When the second detection marker 230 and the first detection marker 310 are of different types, the second detection marker 230 and the first detection marker 310 can be at the same distance from the center of the pivot axis 200.

[0056] In a preferred embodiment of the present invention, the second detection marker 230 and the second detector 140 are both located on the side of the driving wheel 210 away from the lever 300, and the first detection marker 310 and the first detector 110 are both located on the side of the lever 300 away from the driving wheel 210. The two detection systems are made independent of each other to prevent the second detection marker 230 from affecting the first detector 110 and the first detection marker 310 from affecting the second detector 140.

[0057] In a preferred embodiment of the present invention, the minimum distance between the second limiting column 120, the elastic member 130 and the center of the pivot shaft 200 is greater than the maximum distance between the first limiting column 220 and the center of the pivot shaft 200. In this way, when the second limiting column 120 and the elastic member 130 rotate relative to the pivot shaft 200, they will not touch the first limiting column 220, thereby affecting the relative rotation between the pivot member 100 and the pivot shaft 200. In other embodiments, the minimum distance between the first limiting column 220 and the center of the pivot shaft 200 may be greater than the maximum distance between the second limiting column 120 and the center of the pivot shaft 200.

[0058] In a preferred embodiment of the present invention, when the first detector 110 detects the first detection mark 310, the second limit column 120 and the lever 300 do not contact each other. That is, there is a certain distance between the second limit column 120 and the first detector 110, so that when the first detector 110 detects the first detection mark 310, the second limit column 120 will not squeeze the lever 300 and emit a collision noise. In this embodiment, the second limit column 120 is adjacent to the first detector 110.

[0059] In a preferred embodiment of the present invention, the pivot shaft 200 is fixed, and the pivot member 100 rotates around the pivot shaft 200. The pivot member 100 drives the second limiting column 120, the first detector 110, and the elastic member 130 disposed thereon to rotate together, and the pivot shaft 200 and the driving wheel 210 and the first limiting column 220 disposed thereon are fixed. In other embodiments, the pivot member 100 may also be fixed, and the pivot shaft 200 drives the driving wheel 210 and the first limiting column 220 to rotate.

[0060] In a preferred embodiment of the present invention, the pivoting member 100 is a support arm or a lamp head of a stage light. A stage light generally includes a support arm pivotally connected to a chassis and a lamp head pivotally connected to the support arm. The low-noise lamp reset structure can be used on the reset structure of the support arm or the reset structure of the lamp head.

[0061] The present invention also provides a control method for any of the above-mentioned low-noise lamp reset structures, comprising the following steps:

[0062] S1, driving the pivot member 100 to rotate relative to the pivot shaft 200 in a first rotation direction, so that the abutting end of the elastic member 130 pushes the lever 300 to rotate together, until one side of the lever 300 is blocked by the first limiting column 220;

[0063] S2, continue to drive the pivot member 100 to rotate relative to the pivot shaft 200 in the first rotation direction, the other side of the lever 300 abuts against the abutting end to deform the elastic member 130 in the second rotation direction, so that the first detector 110 detects the first detection mark 310 on the lever 300 and generates a first reset signal;

[0064] S3, driving the pivot member 100 to rotate in the second rotation direction relative to the pivot shaft 200, the abutting end of the elastic member 130 abuts the lever 300 to keep the lever 300 stationary, the first detector 110 and the first detection mark 310 move away from each other, and the resetting is completed.

[0065] Since the second limiting column 120 does not need to touch the lever 300 supported by the first limiting column 220, the pivot member 100 will not rebound under the action of the reaction force, avoiding the "click, click, click..." noise caused by multiple collisions, and the reset process is quieter.

[0066] In a preferred embodiment of the present invention, a second detection marker 230 is disposed on the driving wheel 210, and a second detector 140 for detecting the second detection marker 230 is correspondingly disposed on the pivot member 100;

[0067] In step S3, after the first detector 110 moves away from the first detection mark 310, it continues to drive the pivot member 100 to rotate in the second rotation direction relative to the pivot axis 200 until the second detector 140 detects the second detection mark 230 on the driving wheel 210 and generates a second reset signal to complete the reset.

[0068] Since the lever 300 is mounted on the pivot shaft 200, the lever 300 may have friction with the pivot member 100. As the pivot member 100 rotates relative to the pivot shaft 200, if the position of the first detection mark 310 on the lever 300 detected by the first detector 110 is used as the reset position, the reset may easily deviate from the predetermined position. When the pivot member 100 is rotated in the second rotation direction relative to the pivot shaft 200 using the first reset signal as a mark, the position where the second detector 140 first generates the second reset signal is used as the precise initial position. By using the precise initial position as the reset position, the system has better stability, no deviation, and more accurate reset.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A low-noise lamp reset structure, characterized in that: The invention comprises a pivot shaft (200) and a pivot member (100) pivotally connected to the pivot shaft (200); the pivot member (100) has a first rotation direction and a second rotation direction in opposite directions relative to the pivot shaft (200); the pivot shaft (200) is connected to a relatively fixed driving wheel (210) and is sleeved with a shifting rod (300); the shifting rod (300) can rotate freely relative to the pivot shaft (200); The lever (300) is provided with a first detection marker (310), and the pivot member (100) is correspondingly provided with a first detector (110) for detecting the first detection marker (310); The driving wheel (210) is also provided with a first limiting column (220) for limiting the position of the shifting rod (300); the pivoting member (100) is also provided with an elastic member (130) for resisting the shifting rod (300) and a second limiting column (120) for limiting the position of the shifting rod (300); the resisting end of the elastic member (130) and the second limiting column (120) are respectively located on both sides of the first detector (110); and the second limiting column (120), the first detector (110) and the resisting end are sequentially arranged along the first rotation direction; during the relative movement of the pivoting member (100) and the pivot shaft (200), the second limiting column (120), the elastic member (130) and the first limiting column (220) do not interfere with each other; When one side of the lever (300) is blocked by the first limiting column (220) and the other side squeezes the elastic member (130), the elastic member (130) is deformed in the second rotation direction so that the first detector (110) detects the first detection marker (310) on the lever (300).

2. The low-noise lamp reset structure according to claim 1, characterized in that: The driving wheel (210) is provided with a second detection marker (230), and the pivoting member (100) is correspondingly provided with a second detector (140) for detecting the second detection marker (230).

3. The low-noise lamp reset structure according to claim 2, characterized in that: The second detector (140), the second limiting column (120), the first detector (110), and the abutting end on the pivot member (100) are sequentially arranged along the first rotation direction, and the second detection marker (230) and the first limiting column (220) on the driving wheel (210) are also sequentially arranged along the first rotation direction.

4. The low-noise lamp reset structure according to claim 2, characterized in that: The second detection marker (230) is a magnet, the second detector (140) is a magnetic sensitive switch, and / or the first detection marker (310) is a magnet, the first detector (110) is a magnetic sensitive switch.

5. The low-noise lamp reset structure according to claim 2 or 4, characterized in that: The second detection marker (230) and the second detector (140) are both located on a side of the driving wheel (210) away from the shifting rod (300), and the first detection marker (310) and the first detector (110) are both located on a side of the shifting rod (300) away from the driving wheel (210).

6. The low-noise lamp resetting structure according to claim 1, characterized in that: The minimum distance between the second limiting column (120), the elastic member (130) and the center of the pivot shaft (200) is greater than the maximum distance between the first limiting column (220) and the center of the pivot shaft (200).

7. The low-noise lamp resetting structure according to claim 1, characterized in that: When the first detector (110) detects the first detection marker (310), the second limiting column (120) and the shifting rod (300) are not in contact with each other.

8. The low-noise lamp resetting structure according to claim 1, characterized in that: The pivot axis (200) is fixed in position, and the pivot member (100) rotates around the pivot axis (200).

9. The low-noise lamp resetting structure according to claim 1 or 8, characterized in that: The pivoting member (100) is a support arm of a stage light or a lamp head of a stage light.

10. A control method for the low-noise lamp reset structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, driving the pivot member (100) to rotate relative to the pivot shaft (200) in a first rotation direction, so that the abutting end of the elastic member (130) pushes the lever (300) to rotate together, until one side of the lever (300) is blocked by the first limiting column (220); S2, continue to drive the pivot member (100) to rotate relative to the pivot shaft (200) in the first rotation direction, the other side of the lever (300) abuts against the abutting end to cause the elastic member (130) to deform in the second rotation direction 140, so that the first detector (110) detects the first detection mark (310) on the lever (300), and generates a first reset signal; S3, driving the pivot member (100) to rotate in the second rotation direction relative to the pivot shaft (200), the abutting end of the elastic member (130) abuts against the shifting rod (300), so that the shifting rod (300) remains stationary, and the first detector (110) moves away from the first detection marker (310), thereby completing the resetting.

11. The control method according to claim 10, characterized in that: The driving wheel (210) is provided with a second detection marker (230), and the pivoting member (100) is correspondingly provided with a second detector (140) for detecting the second detection marker (230); In step S3, after the first detector (110) moves away from the first detection mark (310), the pivot member (100) continues to be driven to rotate in the second rotation direction relative to the pivot axis (200) until the second detector (140) detects the second detection mark (230) on the driving wheel (210), generates a second reset signal, and completes the reset.

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