Rotary positioning mechanism and stage lamp with same

Abstract

The utility model discloses a rotary positioning mechanism and a stage lamp with the same. The rotary positioning mechanism comprises a rotary arm assembly, a first positioning assembly and a second positioning assembly. The first positioning assembly is connected to the rotating arm assembly, and the rotating arm assembly drives the first positioning assembly to rotate synchronously through rotation. The second positioning assembly and the first positioning assembly are arranged in a stacked mode, a zero position detection assembly is arranged between the second positioning assembly and the first positioning assembly, and the first positioning assembly triggers the zero position detection assembly through rotation so that the rotary positioning mechanism can be located at the zero point position. In the rotating process, the rotating arm assembly drives the first positioning assembly to rotate together, the position of the second positioning assembly is fixed, the first positioning assembly and the second positioning assembly form relative rotation, and therefore the zero position detection assembly is triggered, and the rotating positioning mechanism accurately reaches the zero position. The first positioning assembly and the second positioning assembly are stacked, so that the space around the rotary positioning mechanism is prevented from being occupied, and the size in the horizontal direction is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of lamps, and in particular to a rotation positioning mechanism and a stage lamp with the same. Background Art

[0002] Stage lighting fixtures can change the direction of light by rotating, thus achieving a variety of lighting effects. Because stage lights require a reset during rotation, they are often equipped with a rotation positioning mechanism. Each time the fixture is reset, it must reach a preset zero position, which is the defined starting point for the fixture's X-axis rotation.

[0003] Typically, when determining the zero position of a motion mechanism, a set of sensors is placed on the relatively stationary and moving parts of the mechanism. The zero position is determined by the sensor signals generated by the relative position change between the two parts. However, existing stage lighting positioning mechanisms are typically placed around the rotating mechanism, resulting in large horizontal dimensions and a large space occupation. This results in a bulky luminaire, hindering lightweighting and miniaturization. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a rotation positioning mechanism that can ensure zero point positioning while reducing the horizontal dimension.

[0005] The present application also proposes a stage lighting fixture having the above-mentioned rotation and positioning mechanism.

[0006] According to the rotary positioning mechanism of the first aspect embodiment of the present application, the rotary positioning mechanism includes a rotating arm assembly, a first positioning assembly and a second positioning assembly; the first positioning assembly is connected to the rotating arm assembly, and the rotating arm assembly drives the first positioning assembly to rotate synchronously by rotation; the second positioning assembly is stacked with the first positioning assembly, and a zero position detection assembly is arranged between the second positioning assembly and the first positioning assembly, and the first positioning assembly triggers the zero position detection assembly by rotation to make the rotary positioning mechanism at the zero position.

[0007] The rotary positioning mechanism according to the embodiment of the present application has at least the following beneficial effects: during the rotation of the rotating arm assembly, the first positioning assembly is driven to rotate together, while the position of the second positioning assembly is fixed, so that the first positioning assembly and the second positioning assembly form relative rotation, and the relative rotation formed by the two facilitates triggering the zero position detection assembly between the first positioning assembly and the second positioning assembly, so that the rotary positioning mechanism reaches the zero position accurately; the first positioning assembly and the second positioning assembly are stacked to avoid occupying the space around the rotary positioning mechanism, reduce the horizontal size, and facilitate lightweight and miniaturization of the lamp.

[0008] According to some embodiments of the present application, the second positioning component includes a fixed mounting component, the zero position detection component includes a sensor component arranged on the mounting component and an induction component arranged on the first positioning component, and the first positioning component is used to drive the induction component to rotate so that the induction component triggers the sensor component.

[0009] According to some embodiments of the present application, the rotating arm assembly includes a rotating shaft, the first positioning assembly includes a first driven positioning component and an active positioning component connected to the rotating shaft, the rotating shaft is used to drive the active positioning component to rotate, and the active positioning component drives the first driven positioning component to rotate.

[0010] According to some embodiments of the present application, the sensing assembly includes a first sensor and a second sensor, the sensing assembly includes a first sensing member and a second sensing member, the first sensing member is arranged on the active positioning member, and the second sensing member is arranged on the first driven positioning member, when the first sensing member triggers the first sensor and the second sensing member triggers the second sensor, the rotation positioning mechanism is in a zero position.

[0011] According to some embodiments of the present application, the active positioning component is fixedly connected to the rotating shaft, the active positioning component includes a positioning wheel provided with a first interference portion, the first driven positioning component is stacked with the active positioning component, the first driven positioning component includes a positioning disk provided with a first positioning block, and the first interference portion is used to interfere with and push the first positioning block.

[0012] According to some embodiments of the present application, the first positioning assembly also includes a second driven positioning component, the active positioning component is located between the first driven positioning component and the second driven positioning component, the second driven positioning component includes a positioning plate provided with a second positioning block, and the active positioning component is provided with a second interference portion, and the second interference portion is used to interfere with and push the second positioning block.

[0013] According to some embodiments of the present application, the mounting component is provided with a first positioning column, the outer side of the rotating shaft is provided with a fixed sleeve, the sleeve is provided with a second positioning column, and when the first positioning block contacts the first positioning column and the second positioning block contacts the second positioning column, the rotation positioning mechanism is in the zero position.

[0014] According to some embodiments of the present application, the rotational positioning mechanism also includes a base, the mounting component and the sleeve are fixedly connected to the inside of the base, the rotating shaft is inserted into the inside of the base along the sleeve, and the active positioning component is connected to the rotating shaft inside the base.

[0015] According to some embodiments of the present application, the rotating arm assembly also includes a rotating seat and a transmission wheel. The transmission wheel mounted on the rotating shaft is fixedly connected to the base. The rotating seat fixedly connected to the rotating shaft is provided with a driving component. The driving component is connected to the transmission wheel through a transmission belt, and the driving component is used to drive the rotating seat to rotate.

[0016] According to some embodiments of the present application, the rotating arm assembly further includes a waterproof component, and the waterproof component is used to accommodate a circuit connected to the rotation positioning mechanism.

[0017] According to a second aspect of an embodiment of the present application, the stage lighting fixture includes a lamp body and the above-mentioned rotation and positioning mechanism, wherein the lamp body is connected to the rotating arm assembly.

[0018] The stage lighting fixture according to the embodiment of the present application has at least the following beneficial effects: the rotation positioning mechanism of the embodiment of the first aspect of the present application is adopted, and the rotation positioning mechanism includes a rotating arm assembly, a first positioning assembly, and a second positioning assembly. During the rotation process, the rotating arm assembly drives the first positioning assembly to rotate together, while the position of the second positioning assembly is fixed, so that the first positioning assembly and the second positioning assembly form relative rotation. The relative rotation formed by the two facilitates triggering the zero position detection assembly between the first positioning assembly and the second positioning assembly, so that the rotation positioning mechanism reaches the zero point position accurately; the first positioning assembly and the second positioning assembly are stacked to avoid occupying the space around the rotation positioning mechanism, reduce the horizontal size, and are conducive to lightweight and miniaturization of the lighting fixture.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solutions disclosed in this application and constitute a part of the specification. Together with the embodiments disclosed in this application, they are used to explain the technical solutions disclosed in this application and do not constitute a limitation on the technical solutions disclosed in this application.

[0021] Figure 1 This is a structural diagram of the rotation positioning mechanism of an embodiment of the present application;

[0022] Figure 2 This is a cross-sectional view of the rotation positioning mechanism according to an embodiment of the present application;

[0023] Figure 3 This is an exploded view of the stage lighting fixture according to an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of the rotating arm assembly in the rotary positioning mechanism of an embodiment of the present application;

[0025] Figure 5 This is a schematic structural diagram of the rotating shaft in the rotary positioning mechanism of an embodiment of the present application;

[0026] Figure 6 This is a structural diagram of the first positioning component in the rotary positioning mechanism of an embodiment of the present application;

[0027] Figure 7 This is an exploded view of the first positioning component in the rotary positioning mechanism according to an embodiment of the present application;

[0028] Figure 8 2 is a cross-sectional view of a first positioning component in a rotary positioning mechanism according to an embodiment of the present application;

[0029] Figure 9 This is a structural schematic diagram of the first driven positioning component in the rotary positioning mechanism of an embodiment of the present application;

[0030] Figure 10 This is a schematic structural diagram of the active positioning component in the rotary positioning mechanism of an embodiment of the present application;

[0031] Figure 11 Schematic diagram of the structure of the second driven positioning component in the rotary positioning mechanism of an embodiment of the present application;

[0032] Figure 12 This is a schematic structural diagram of the second positioning component in the rotary positioning mechanism of an embodiment of the present application;

[0033] Figure 13 This is a schematic structural diagram of a shaft sleeve in a rotary positioning mechanism according to an embodiment of the present application;

[0034] Figure 14 This is a structural diagram of the base in the rotation positioning mechanism of an embodiment of the present application;

[0035] Figure 15 This is a schematic diagram of the positions of the first positioning component and the second positioning component when the rotary positioning mechanism of the embodiment of the present application is at the zero position.

[0036] Reference numerals:

[0037] Rotating arm assembly 100; rotating shaft 101; rotating base 102; driving component 103; transmission wheel 104; waterproof component 105;

[0038] First positioning assembly 200; active positioning member 201; first interference portion 2011; second interference portion 2012; first driven positioning member 202; first positioning block 2021; second driven positioning member 203; second positioning block 2031; washer 204; baffle 205; axial positioning member 206;

[0039] Second positioning assembly 300; mounting component 301; first sensor 302; second sensor 303; first sensing element 304; second sensing element 305;

[0040] First positioning post 401; shaft sleeve 402; second positioning post 403;

[0041] Base 500;

[0042] Lamp body 600. DETAILED DESCRIPTION

[0043] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0044] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0045] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0046] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0047] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0048] like Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the present application provides a rotational positioning mechanism, which includes a rotating arm assembly 100, a first positioning assembly 200, and a second positioning assembly 300. The rotating arm assembly 100 is used to mount a lamp body 600, and the rotating arm assembly 100 rotates synchronously with the lamp body 600. The lamp body 600 and the rotating arm assembly 100 need to be reset during each use, that is, to reach a preset zero position. The zero position of the lamp body 600 and the rotating arm assembly 100 corresponds to the zero position of the rotational positioning mechanism.

[0049] Furthermore, during rotation, the arm assembly 100 drives the first positioning assembly 200 to rotate synchronously, while the second positioning assembly 300 is fixed in position. The relative rotation of the first and second positioning assemblies 200, 300 facilitates triggering the zero-position detection assembly. When the zero-position detection assembly is triggered, the rotary positioning mechanism is precisely positioned at zero. Furthermore, the stacked arrangement of the first and second positioning assemblies 200, 300 avoids occupying space around the rotary positioning mechanism, reduces horizontal dimensions, and contributes to the lightweight and miniaturized design of the lamp.

[0050] In some examples, such as Figure 4 、 Figure 5 and Figure 6 As shown, the arm assembly 100 includes a rotating shaft 101. When the arm assembly 100 rotates, the rotating shaft 101 rotates synchronously. At the same time, the arm assembly 100 is connected to the first positioning assembly 200 via the rotating shaft 101. As the rotating shaft 101 rotates, the first positioning assembly 200 also rotates synchronously. The rotating shaft 101 can reflect the rotation process of the arm assembly 100 to the first positioning assembly 200, facilitating the zero position detection assembly to perform zero point position detection.

[0051] In some examples, such as Figure 7 and Figure 8 As shown, the first positioning assembly 200 is disposed at the end of the rotating shaft 101, and the first positioning assembly 200 includes an active positioning component 201 and a first driven positioning component 202. The active positioning component 201 is fixedly connected to the rotating shaft 101, and the rotating shaft 101 and the active positioning component 201 form a whole that rotates together.

[0052] At the same time, the first driven positioning component 202 can rotate relative to the active positioning component 201 to a certain extent. During the rotation of the active positioning component 201, the active positioning component 201 and the first driven positioning component 202 will structurally contact each other. When the active positioning component 201 continues to rotate, the active positioning component 201 will drive the first driven positioning component 202 to rotate.

[0053] It is worth noting that when the active positioning component 201 and the first driven positioning component 202 rotate to the corresponding preset positions, the zero position detection component will be triggered, indicating that the rotary positioning mechanism is currently at the zero position.

[0054] In some examples, such as Figure 10 As shown, the active positioning component 201 is formed as a positioning wheel. The inner wall of the active positioning component 201 is provided with a mounting step. The end of the rotating shaft 101 is inserted into the interior of the active positioning component 201 and abuts against the mounting step. At the same time, the rotating shaft 101 and the mounting step are connected to each other by fasteners, so that the rotating shaft 101 and the active positioning component 201 form a whole.

[0055] Furthermore, if Figure 9 As shown, the first driven positioning component 202 is formed as a positioning disk, and the active positioning component 201 is provided with a first boss at the end away from the rotating shaft 101. The first driven positioning component 202 is sleeved on the outside of the first boss and can rotate on the outside of the first boss. The first driven positioning component 202 and the active positioning component 201 are stacked. Specifically, when the height of the rotating shaft 101 is greater than the height of the first positioning assembly 200, the first driven positioning component 202 is stacked on the bottom of the active positioning component 201.

[0056] The active positioning component 201 has a first contact portion 2011 formed as a protrusion at its edge. The first passive positioning component 202 has a gap between its edge and the first contact portion 2011. The first positioning block 2021 is provided at its edge. The first positioning block 2021 extends outward from the edge of the first passive positioning component 202 and reaches within the range of motion of the first contact portion 2011. The first positioning block 2021 has a certain area in the horizontal direction.

[0057] During the rotation of the active positioning component 201, if the first interference portion 2011 does not reach the first positioning block 2021, that is, there is no structural contact between the active positioning component 201 and the first driven positioning component 202, the active positioning component 201 will not affect the movement process of the first driven positioning component 202; if the first interference portion 2011 reaches the first positioning block 2021 and interferes with the side retaining edge of the first positioning block 2021, as the active positioning component 201 continues to rotate, the active positioning component 201 will push the first positioning block 2021, so that the first driven positioning component 202 rotates synchronously.

[0058] Since the position of the second positioning assembly 300 is fixed, the active positioning component 201 and the first driven positioning component 202 rotate relative to the second positioning assembly 300 , and the zero position detection assembly can be triggered during the relative rotation process.

[0059] In some examples, such as Figure 11 As shown, the first positioning assembly 200 includes a second driven positioning component 203 . The second driven positioning component 203 and the first driven positioning component 202 may have different thicknesses, but have the same basic structure.

[0060] Furthermore, the second driven positioning component 203 is formed as a positioning disk, and the active positioning component 201 is provided with a second boss at the end thereof near the rotating shaft 101. The second driven positioning component 203 is sleeved on the outside of the second boss and is rotatable on the outside of the second boss. Thus, the second driven positioning component 203 and the active positioning component 201 are also stacked. It is understood that the first driven positioning component 202, the active positioning component 201, and the second driven positioning component 203 form a three-layer stacked structure, with the active positioning component 201 located between the first driven positioning component 202 and the second driven positioning component 203.

[0061] The active positioning member 201 has a second abutment 2012 formed as a bump on its edge. The second passive positioning member 203 has a second positioning block 2031 formed on its edge. The size of the second positioning block 2031 is the same as that of the first positioning block 2021 .

[0062] During the rotation of the active positioning component 201, if the second resistance portion 2012 reaches the second positioning block 2031 and resists the side retaining edge of the second positioning block 2031, as the active positioning component 201 continues to rotate, the active positioning component 201 will push the second positioning block 2031, causing the second driven positioning component 203 to rotate synchronously.

[0063] Specifically, the first and second interfering portions 2011, 2012 are symmetrically positioned at opposite ends of the active positioning component 201, i.e., their horizontal positions are identical. When the first interfering portion 2011 interfers with the first positioning block 2021, and the second interfering portion 2012 interfers with the second positioning block 2031, the horizontal positions of the first and second positioning blocks 2021, 2031 coincide. At this point, the active positioning component 201 can drive the first and second driven positioning components 202, 203 to rotate synchronously.

[0064] In some examples, such as Figure 7 As shown, the first positioning assembly 200 further includes a plurality of washers 204. The washers 204 are provided to prevent wear between adjacent structures. Each washer 204 is sleeved onto the first boss or the second boss of the active positioning component 201. At least three washers 204 are provided: a washer 204 is provided between the first passive positioning component 202 and the active positioning component 201, and washers 204 are provided at opposite ends of the second passive positioning component 203.

[0065] In some examples, the first positioning assembly 200 further includes a baffle 205, which is fixedly connected to the end of the active positioning component 201 away from the rotating shaft 101. The edge of the baffle 205 extends into the physical structure of the first driven positioning component 202, so that the first driven positioning component 202 is axially located between the baffle 205 and the active positioning component 201, thereby preventing the first driven positioning component 202 from separating from the active positioning component 201.

[0066] In some examples, such as Figure 12 As shown, the second positioning assembly 300 is fixed in position and is stacked with the first positioning assembly 200. Specifically, the second positioning assembly 300 is located at the end of the first positioning assembly 200 away from the rotating shaft 101. It is worth noting that a certain distance exists between the first positioning assembly 200 and the second positioning assembly 300 to prevent structural interference between the first positioning assembly 200 and the second positioning assembly 300 during rotation.

[0067] A zero-position detection assembly is provided between the second positioning assembly 300 and the first positioning assembly 200. Since the second positioning assembly 300 is fixed and the first positioning assembly 200 rotates, the second positioning assembly 300 and the first positioning assembly 200 can rotate relative to each other. When the first positioning assembly 200 rotates to a preset position relative to the second positioning assembly 300, the zero-position detection assembly is triggered, indicating that the rotary positioning mechanism is at zero.

[0068] In some examples, the second positioning assembly 300 includes a fixed mounting component 301, which is formed into a plate-like structure. The zero position detection assembly includes a sensor assembly and an induction assembly, wherein the sensor assembly is disposed on the mounting component 301 and the induction assembly is disposed on the first positioning assembly 200.

[0069] Furthermore, since the position of the sensing component is fixed, as the first positioning component 200 rotates, the sensing component gradually approaches and reaches the sensing range of the sensing component. At this time, the zero position detection component is triggered, and the rotary positioning mechanism is at the zero position.

[0070] In some examples, the sensing component includes a first sensor 302 and a second sensor 303 , specifically, the first sensor 302 and the second sensor 303 are Hall sensors; the induction component includes a first induction element 304 and a second induction element 305 , specifically, the first induction element 304 and the second induction element 305 are magnets.

[0071] Among them, the first sensing member 304 is arranged on the surface of the active positioning component 201 facing the installation component 301, specifically, the first sensing member 304 is arranged on the first boss; the second sensing member 305 is arranged on the surface of the first driven positioning component 202 facing the installation component 301, specifically, the second sensing member 305 is arranged on the first positioning block 2021.

[0072] Furthermore, as the active positioning component 201 drives the first driven positioning component 202 to rotate synchronously, the first sensing element 304 gradually reaches the sensing range of the first sensor 302 and triggers the first sensor 302 through the magnetic field, indicating that the first driven positioning component 202 has reached the preset position. In addition, the second sensing element 305 gradually reaches the sensing range of the second sensor 303 and triggers the second sensor 303, indicating that the active positioning component 201 has reached the preset position.

[0073] Specifically, only when the active positioning component 201 and the first driven positioning component 202 both reach corresponding preset positions can it be determined that the rotary positioning mechanism is at the zero position.

[0074] In some examples, such as Figure 12 As shown, the zero position detection component can detect that the rotation positioning mechanism is at the zero position, but cannot position the rotation positioning mechanism at the zero position, and a corresponding positioning structure is required to lock the position of the first positioning component 200.

[0075] The mounting component 301 is provided with a first positioning column 401 . When the first driven positioning component 202 reaches the corresponding preset position, the first positioning column 401 abuts against the retaining edge of the first positioning block 2021 to prevent the first driven positioning component 202 from continuing to rotate.

[0076] It is understood that in the first positioning block 2021, the ribs contacting the first abutting portion 2011 and the ribs contacting the first positioning post 401 are located on opposite sides of the first positioning block 2021. When the active positioning component 201 also reaches the corresponding preset position, the first positioning post 401 and the first abutting portion 2011 clamp the first positioning block 2021 therebetween. At this point, the zero position detection assembly is triggered, and neither the active positioning component 201 nor the first driven positioning component 202 can continue to rotate in the previous rotation direction, thereby positioning the rotary positioning mechanism at the zero position.

[0077] In addition, if Figure 13As shown, the outer side of the rotating shaft 101 is provided with a fixed sleeve 402. The rotating shaft 101 can rotate within the sleeve 402. The sleeve 402 is provided with a second positioning post 403 facing the second driven positioning component 203. The second positioning post 403 and the first positioning post 401 are positioned horizontally in the same position. When the active positioning component 201 pushes the first driven positioning component 202 to a specified position, it also pushes the second driven positioning component 203 to contact the second positioning post 403 with the second positioning block 2031. Therefore, the first driven positioning component 202 and the second driven positioning component 203 have the same motion state, and the first driven positioning component 202 and the second driven positioning component 203 jointly achieve zero-point positioning of the rotation positioning mechanism.

[0078] In some examples, an axial positioning component 206 is provided on the outside of the rotating shaft 101. The axial positioning component 206 is threadedly connected to the rotating shaft 101 and is located at the end of the active positioning component 201 close to the rotating shaft 101. The axial positioning component 206 is used to block the axial movement of the second driven positioning component 203 to prevent the second driven positioning component 203 from separating from the active positioning component 201.

[0079] In some examples, such as Figure 14 As shown, the rotation positioning mechanism further includes a base 500, which is fixed in position. The mounting member 301 and the shaft sleeve 402 are fixedly connected to the interior of the base 500. The base 500 is provided with a socket, the shaft sleeve 402 is connected to the socket, the rotating shaft 101 is inserted into the interior of the base 500 along the shaft sleeve 402, and the first positioning assembly 200 is connected to the rotating shaft 101 inside the base 500.

[0080] In some examples, such as Figure 4 As shown, the arm assembly 100 includes a rotating base 102 and a transmission wheel 104, the transmission wheel 104 is sleeved on the rotating shaft 101 and fixedly connected to the base 500. At the same time, the rotating base 102 is fixedly connected to the rotating shaft 101, and the rotating base 102 is provided with a driving component 103, specifically, the driving component 103 is a motor.

[0081] The driving component 103 is connected to a driving wheel, and the driving wheel is connected to the transmission wheel 104 through a transmission belt, thereby driving the rotating seat 102 to rotate. Specifically, the transmission belt is a synchronous belt, and the driving wheel and the transmission wheel 104 are both synchronous pulleys.

[0082] In some examples, the arm assembly 100 includes a waterproof component 105, specifically a waterproof wire outlet cover. The waterproof component 105 is used to accommodate the wires connected to the rotation and positioning mechanism, thereby improving the waterproof performance of the rotation and positioning mechanism and making the rotation and positioning mechanism suitable for more usage scenarios.

[0083] The present invention provides a stage lighting fixture, comprising a lamp body 600 and the aforementioned rotation positioning mechanism. The lamp body 600 is connected to a rotating base 102. When the rotating base 102 rotates, the lamp body 600 is driven to rotate synchronously. When the rotation positioning mechanism reaches the zero position, the stage lighting fixture can be reset to the zero position.

[0084] During the actual implementation process, the rotating seat 102 drives the rotating shaft 101 and the active positioning component 201 to rotate synchronously, and the active positioning component 201 drives the first driven positioning component 202 and the second driven positioning component 203 to rotate in coordination. When the active positioning component 201 and the first driven positioning component 202 reach the corresponding preset positions, the first sensing member 304 triggers the first sensor 302, and the second sensing member 305 triggers the second sensor 303, and the rotation positioning mechanism reaches the zero position; at the same time, the first driven positioning component 202 and the second driven positioning component 203 contact the first positioning column 401 and the second positioning column 403, positioning the rotation positioning mechanism at the zero position, thereby completing the reset process of the lamp. When the rotation positioning mechanism is at the zero position, the relative positions of the active positioning component 201, the first driven positioning component 202 and the mounting component 301 are shown in FIG. Figure 15 .

[0085] In some optional embodiments, the functions / operations mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the functions / operations involved, the two boxes shown in succession may actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flow chart of the present application are provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operations and logic flows presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0086] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A rotary positioning mechanism, characterized in that: include: Rotating arm assembly; a first positioning assembly, the first positioning assembly being connected to the rotating arm assembly, and the rotating arm assembly driving the first positioning assembly to rotate synchronously by rotating; The second positioning component is stacked with the first positioning component, a zero position detection component is provided between the second positioning component and the first positioning component, and the first positioning component triggers the zero position detection component by rotation to make the rotation positioning mechanism be at the zero position.

2. The rotation positioning mechanism according to claim 1, characterized in that: The second positioning component includes a fixed mounting component, the zero position detection component includes a sensor component arranged on the mounting component and an induction component arranged on the first positioning component, and the first positioning component is used to drive the induction component to rotate so that the induction component triggers the sensor component.

3. The rotation positioning mechanism according to claim 2, characterized in that: The rotating arm assembly includes a rotating shaft, and the first positioning assembly includes a first driven positioning component and an active positioning component connected to the rotating shaft. The rotating shaft is used to drive the active positioning component to rotate, and the active positioning component drives the first driven positioning component to rotate.

4. The rotation positioning mechanism according to claim 3, characterized in that: The sensing assembly includes a first sensor and a second sensor, and the induction assembly includes a first induction member and a second induction member. The first induction member is arranged on the active positioning member, and the second induction member is arranged on the first driven positioning member. When the first induction member triggers the first sensor and the second induction member triggers the second sensor, the rotation positioning mechanism is at the zero position.

5. The rotation positioning mechanism according to claim 3, characterized in that: The active positioning component is fixedly connected to the rotating shaft, and the active positioning component includes a positioning wheel provided with a first interference portion. The first driven positioning component is stacked with the active positioning component, and the first driven positioning component includes a positioning disk provided with a first positioning block. The first interference portion is used to interfere with and push the first positioning block.

6. The rotation positioning mechanism according to claim 5, characterized in that: The first positioning assembly also includes a second driven positioning component, the active positioning component is located between the first driven positioning component and the second driven positioning component, the second driven positioning component includes a positioning plate provided with a second positioning block, and the active positioning component is provided with a second interference portion, which is used to interfere with and push the second positioning block.

7. The rotation positioning mechanism according to claim 6, characterized in that: The mounting component is provided with a first positioning column, the outer side of the rotating shaft is provided with a fixed sleeve, and the sleeve is provided with a second positioning column. When the first positioning block abuts against the first positioning column and the second positioning block abuts against the second positioning column, the rotation positioning mechanism is at the zero position.

8. The rotation positioning mechanism according to claim 7, characterized in that: The rotation positioning mechanism also includes a base, the mounting component and the shaft sleeve are fixedly connected inside the base, the rotating shaft is inserted into the inside of the base along the shaft sleeve, and the active positioning component is connected to the rotating shaft inside the base.

9. The rotation positioning mechanism according to claim 8, characterized in that: The rotating arm assembly also includes a rotating seat and a transmission wheel. The transmission wheel mounted on the rotating shaft is fixedly connected to the base. The rotating seat fixedly connected to the rotating shaft is provided with a driving component. The driving component is connected to the transmission wheel through a transmission belt. The driving component is used to drive the rotating seat to rotate.

10. The rotation positioning mechanism according to claim 9, characterized in that: The rotating arm assembly further includes a waterproof component, which is used to accommodate a circuit connected to the rotation positioning mechanism.

11. A stage lighting fixture, characterized in that: It comprises a lamp body and the rotation positioning mechanism according to any one of claims 1 to 10, wherein the lamp body is connected to the rotating arm assembly.

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