A luminaire having a stepless locking assembly

Abstract

The utility model discloses a lamp with stepless locking assembly, including the lamp head for sending light and the support seat of supporting lamp head rotation, still include stepless locking assembly, stepless locking assembly includes the pivot joint axle connection of lamp head and carousel and with carousel opposite first resistance and hold dish of setting, still include drive first resistance and hold dish, carousel each other close lever, the protruding rubs the block of carousel, rubs the block to have friction inclined plane, and first resistance and hold dish correspond friction inclined plane and set up resistance and hold inclined plane, and resistance and hold inclined plane and friction inclined plane face contact, and the included angle of friction inclined plane and carousel is greater than 75 degrees, less than 85 degrees. First resistance and hold dish push away the force of carousel after the decomposition like this, and the force on the vertical friction inclined plane will be amplified 2-6 times relative to push away the force, and the corresponding friction will also be amplified 2-6 times, with the enhancement of lever force, thereby will realize first resistance and hold dish to the lock of carousel rotation, and will hang the lamp head in any angle.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting technology, and more specifically, to a lighting fixture with a stepless locking component. Background Technology

[0002] Stage lights typically have their lamp heads pivotally connected to a support base, allowing the lamp head to rotate and project light in multiple directions. However, when locking the relative angle between the lamp head and the support base is required, it currently uses a turntable with a locking hole connected to the lamp head's pivot shaft, which engages with a pin to lock at a few or a dozen specific angles. This prevents stepless locking, i.e., locking at any angle, which is inconvenient for precise adjustment of the stage light's lamp head angle. Utility Model Content

[0003] To overcome at least one of the defects described in the prior art, this utility model provides a lamp with a stepless locking assembly, which can lock the lamp head at any angle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a lamp with a stepless locking assembly, including a lamp head for emitting light and a support base for supporting the rotation of the lamp head, and a stepless locking assembly. The stepless locking assembly includes a turntable pivotally connected to the lamp head and a first abutting plate disposed opposite to the turntable. It also includes a control lever for driving the first abutting plate and the turntable to move closer to each other. The turntable has a protruding friction protrusion with a friction slope. The first abutting plate has an abutting slope corresponding to the friction slope. The abutting slope is in surface contact with the friction slope, and the angle between the friction slope and the turntable is greater than 75 degrees and less than 85 degrees.

[0005] The lamp with a stepless locking assembly drives the first abutment plate and the turntable to move closer together via the control lever. This causes the abutment slope on the first abutment plate to abut against the friction slope of the friction protrusion on the turntable, thereby converting the force of the control lever into a pushing force on the friction slope perpendicular to the turntable. Since the abutment slope and the friction slope are in surface contact, and the angle between the friction slope and the turntable is greater than 75 degrees and less than 85 degrees, the pushing force, after being decomposed, will be amplified by 2-6 times relative to the pushing force, and will also be amplified by 2-6 times compared to the friction force generated by the pushing force directly acting on the friction slope. As the force of the control lever increases, the first abutment plate will lock the rotation of the turntable, suspending the lamp head at any angle.

[0006] Furthermore, the friction protrusion is annular, with its center located on the rotation axis of the lamp head. This ensures that when the turntable rotates to any angle, the inclined support surface on the first support plate can abut against the friction protrusion, achieving frictional locking.

[0007] Furthermore, the friction protrusion has a retaining slope on both the side near and away from the rotation axis, and the first retaining plate has two such retaining slopes. The two friction slopes double the friction force, making it easier to lock the turntable.

[0008] Furthermore, the first abutment plate is provided with a receiving groove corresponding to the friction protrusion, and the abutment slope is formed by the groove wall of the receiving groove. The friction protrusion is accommodated in the receiving groove, which can reduce the distance between the first abutment plate and the turntable, making the stepless locking assembly structure more compact.

[0009] Furthermore, a second supporting plate is provided on the side of the turntable away from the first supporting plate. The second supporting plate is slidably connected to the first supporting plate, and the side of the turntable away from the first supporting plate also has a protruding friction protrusion. The second supporting plate also has a supporting slope corresponding to the friction slope. The cooperation between the supporting slope on the second supporting plate and the friction slope on the friction protrusion of the turntable will double the friction force, thereby making it easier to lock the turntable.

[0010] Furthermore, the second abutment plate and the first abutment plate are slidably connected and angularly constrained by a non-circular column and a limiting guide hole. Thus, under the action of the control lever, the second abutment plate and the first abutment plate will move closer to each other without relative rotation, which is beneficial for supporting the turntable.

[0011] Furthermore, the turntable has a through hole at its center, through which the first and second supporting plates pass and cooperate with each other. This ensures that the first and second supporting plates will not interfere with the rotation of the turntable during normal operation.

[0012] Furthermore, the through hole is a circular hole, and a slip ring is provided between the first and second supporting plates and the sidewall of the through hole to reduce the friction of the contact surfaces. The slip ring will make the relative rotation of the turntable with the first and second supporting plates smoother and less prone to jamming.

[0013] Furthermore, the second abutment plate is fixed to the support base, and the end of the operating lever away from the first abutment plate abuts against the side of the second abutment plate away from the first abutment plate. In this way, the second abutment plate and the operating lever will always be stationary relative to the support base, which looks more aesthetically pleasing and is easier to operate.

[0014] Furthermore, the angle between the friction ramp and the turntable is greater than 78 degrees and less than 82 degrees. The resisting force exerted by the retaining ramp on the friction ramp perpendicular to the turntable, after decomposition, will be amplified 3-5 times relative to the resisting force, and will also be amplified 3-5 times compared to the frictional force generated by the resisting force acting directly on the friction ramp, thus making it easier to lock the turntable.

[0015] Furthermore, the control lever is threadedly connected to the first abutment plate, and the first abutment plate is driven closer to the turntable by rotation. This makes it easier for the control lever to apply force, and the rotational application of force, along with the threaded connection, further amplifies the force exerted by the control lever on the first abutment plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the lamp with stepless locking components according to this utility model.

[0017] Figure 2 This is a cross-sectional view of the stepless locking assembly of this utility model.

[0018] Figure 3 This is an exploded structural diagram of the stepless locking assembly of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the second abutment plate of this utility model on the side near the second abutment plate.

[0020] In the picture:

[0021] 100, Lamp holder; 200, Support base; 300, Stepless locking assembly; 310, Turntable; 311, Friction protrusion; 312, Friction slope; 313, Through hole; 320, First abutment plate; 321, Abutment slope; 322, Receiving groove; 323, Column; 330, Control lever; 331, Knob; 332, Sliding washer; 340, Second abutment plate; 341, Limiting guide hole; 342, Fixing hole; 350, Slip ring. Detailed Implementation

[0022] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0023] like Figures 1 to 4This utility model provides a lamp with a stepless locking assembly, including a lamp head 100 for emitting light and a support base 200 for supporting the rotation of the lamp head 100, and a stepless locking assembly 300. The stepless locking assembly 300 includes a turntable 310 pivotally connected to the lamp head 100 and a first abutment plate 320 disposed opposite to the turntable 310. It also includes a control lever 330 for driving the first abutment plate 320 and the turntable 310 to move closer to each other. The turntable 310 has a protruding friction protrusion 311, and the friction protrusion 311 has a friction inclined surface 312. The first abutment plate 320 is provided with an abutment inclined surface 321 corresponding to the friction inclined surface 312. The abutment inclined surface 321 is in surface contact with the friction inclined surface 312, and the angle between the friction inclined surface 312 and the turntable 310 is greater than 75 degrees and less than 85 degrees.

[0024] The lamp with a stepless locking assembly drives the first abutment plate 320 and the turntable 310 closer together via the operating lever 330. This causes the abutment slope 321 on the first abutment plate 320 to abut against the friction slope 312 of the friction protrusion 311 on the turntable 310, thereby converting the force of the operating lever 330 into a pushing force on the friction slope 312 in a direction perpendicular to the turntable 310. Furthermore, because the abutment slope 321 and the friction slope 312 are in surface contact, the friction… The angle between the inclined plane 312 and the turntable 310 is greater than 75 degrees and less than 85 degrees. After the pushing force is decomposed, the force acting on the friction inclined plane 312 will be amplified by 2-6 times compared to the pushing force. It will also be amplified by 2-6 times compared to the friction force generated by the pushing force acting directly on the friction inclined plane 312. As the force of the control lever 330 increases, the first abutment plate 320 will lock the rotation of the turntable 310, suspending the lamp head 100 at any angle.

[0025] In this embodiment, the friction bump 311 is located at a distance greater than one-third of the radius of the turntable 310 from the rotation center of the turntable 310, in order to increase the frictional torque and thus lock the turntable 310 with less friction.

[0026] In this embodiment, the edge of the turntable 310 is locked to the pivot shaft of the lamp head 100 by screws.

[0027] In this embodiment, the lamp head 100 is a pixel lamp with a matrix light source.

[0028] In a preferred embodiment of this invention, the friction protrusion 311 is annular, and its center is located on the rotation axis of the lamp head 100. Thus, when the turntable 310 rotates to any angle, the abutting inclined surface 321 on the first abutting plate 320 can abut against the friction protrusion 311, achieving frictional locking.

[0029] In this embodiment, the friction bump 311 extends continuously in a ring shape; in other embodiments, it may extend intermittently.

[0030] In this embodiment, the supporting inclined surface 321 is also in a ring shape around the rotation axis of the lamp head 100.

[0031] In a preferred embodiment of this invention, the friction protrusion 311 has a retaining inclined surface 321 formed on both the side near the rotation axis and the side away from the rotation axis, and the first retaining disk 320 is correspondingly provided with two retaining inclined surfaces 321. The two friction inclined surfaces 312 will double the friction force, thereby making it easier to lock the turntable 310.

[0032] In this embodiment, the top of the friction protrusion 311 is connected to the two abutting inclined surfaces 321 in a plane parallel to the turntable 310.

[0033] In a preferred embodiment of this utility model, the first abutment plate 320 is provided with a receiving groove 322 corresponding to the friction protrusion 311, and the abutment inclined surface 321 is formed by the groove wall of the receiving groove 322. The friction protrusion 311 is accommodated in the receiving groove 322, which can reduce the distance between the first abutment plate 320 and the turntable 310, making the stepless locking assembly 300 structure more compact.

[0034] In a preferred embodiment of this utility model, a second abutment plate 340 is provided on the side of the turntable 310 away from the first abutment plate 320. The second abutment plate 340 is slidably connected to the first abutment plate 320, and the turntable 310 also has a protruding friction protrusion 311 on the side away from the first abutment plate 320. The second abutment plate 340 also has an abutment slope 321 corresponding to the friction slope 312. The abutment slope 321 on the second abutment plate 340 cooperates with the friction slope 312 on the friction protrusion 311 of the turntable 310, which will double the friction force, thereby making it easier to lock the turntable 310.

[0035] In this embodiment, the structure of the second abutment plate 340 that cooperates with the turntable 310 is the same as the structure of the first abutment plate 320 that cooperates with the turntable 310, and the structures on both sides of the turntable 310 are the same.

[0036] In a preferred embodiment of this utility model, the second abutment plate 340 and the first abutment plate 320 are slidably connected and angularly constrained by a non-circular column 323 engaging with a limiting guide hole 341. Thus, under the action of the operating lever 330, the second abutment plate 340 and the first abutment plate 320 will approach each other without relative rotation, which is beneficial for supporting the turntable 310.

[0037] In this embodiment, the column 323 is a quadrangular prism and is disposed on the first abutment plate 320. The limiting guide hole 341 is disposed on the second abutment plate 340. The operating lever 330 passes through the column 323 and the limiting guide hole 341 and cooperates with the first abutment plate 320.

[0038] In a preferred embodiment of this utility model, the turntable 310 has a through hole 313 at its center, through which the first supporting plate 320 and the second supporting plate 340 pass and cooperate with each other. In this way, the first supporting plate 320 and the second supporting plate 340 will not affect the rotation of the turntable 310 during normal operation.

[0039] In this embodiment, the pivot end face of the lamp holder 100 is provided with a clearance groove corresponding to the first abutment plate 320.

[0040] In a preferred embodiment of this utility model, the through hole 313 is a circular hole, and a slip ring 350 is provided between the first supporting plate 320, the second supporting plate 340 and the side wall of the through hole 313 to reduce the friction of the contact surface. The slip ring 350 makes the relative rotation of the turntable 310 with the first supporting plate 320 and the second supporting plate 340 smoother and less prone to jamming.

[0041] In this embodiment, the slip ring 350 is made of plastic and has a lubricating function, similar to a bearing.

[0042] In a preferred embodiment of this utility model, the second abutment plate 340 is fixed to the support base 200, and the end of the operating lever 330 away from the first abutment plate 320 abuts against the side of the second abutment plate 340 away from the first abutment plate 320. In this way, the second abutment plate 340 and the operating lever 330 will always be stationary relative to the support base 200, which looks more aesthetically pleasing and is easier to operate.

[0043] In this embodiment, the second abutment plate 340 is provided with a plurality of fixing holes 342, and the second abutment plate 340 is locked to the support base 200 by a plurality of screws passing through the fixing holes 342. Preferably, it is locked to the outer shell of the support base 200.

[0044] In a preferred embodiment of this invention, the angle between the friction inclined surface 312 and the turntable 310 is greater than 78 degrees and less than 82 degrees. The pushing force exerted by the supporting inclined surface 321 on the friction inclined surface 312 in a direction perpendicular to the turntable 310, after decomposition, will be amplified 3-5 times relative to the pushing force, and will also be amplified 3-5 times compared to the frictional force generated by the pushing force directly acting on the friction inclined surface 312, thus making it easier to lock the turntable 310.

[0045] In this embodiment, the angle between the friction ramp 312 and the turntable 310 is 80 degrees. Therefore, the frictional force generated compared to the direct force acting on the friction ramp 312 is amplified by four times.

[0046] In a preferred embodiment of this invention, the control lever 330 is threadedly connected to the first abutment plate 320, and the first abutment plate 320 is driven to approach the turntable 310 by rotation. This makes it easier for the control lever 330 to apply force, and the force applied by rotation, along with the thread, further amplifies the force exerted by the control lever 330 on the first abutment plate 320.

[0047] In this embodiment, a knob 331 is connected to the end of the control lever 330 away from the first abutment plate 320. The knob 331 abuts against the second abutment plate 340 via a sliding washer 332. Preferably, the knob 331 has a width greater than 3 cm and less than 7 cm.

[0048] In this embodiment, the threaded connection between the control lever 330 and the first abutment plate 320 adopts an M4 screw structure.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lamp fixture with a stepless locking assembly, characterized in that, The device includes a lamp head (100) for emitting light and a support base (200) for supporting the rotation of the lamp head (100). It also includes a continuously variable locking assembly (300), which includes a turntable (310) pivotally connected to the lamp head (100) and a first abutment plate (320) opposite to the turntable (310). The assembly also includes a mechanism for driving the first abutment plate (320) and the turntable (310) closer together. The control lever (330) has a rotating disk (310) with a protruding friction protrusion (311). The friction protrusion (311) has a friction inclined surface (312). The first abutting disk (320) is provided with an abutting inclined surface (321) corresponding to the friction inclined surface (312). The abutting inclined surface (321) is in contact with the friction inclined surface (312), and the angle between the friction inclined surface (312) and the rotating disk (310) is greater than 75 degrees and less than 85 degrees.

2. The lamp with a stepless locking assembly according to claim 1, characterized in that, The friction bump (311) is annular, and its center is located on the rotation axis of the lamp head (100).

3. The lamp with a stepless locking assembly according to claim 2, characterized in that, The friction protrusion (311) has a retaining slope (321) on both the side near the rotation axis and the side away from the rotation axis, and the first retaining plate (320) is provided with two retaining slopes (321).

4. The lamp with a stepless locking assembly according to claim 1, characterized in that, The first abutting plate (320) is provided with a receiving groove (322) corresponding to the friction protrusion (311), and the abutting inclined surface (321) is formed by the groove wall of the receiving groove (322).

5. The lamp with a stepless locking assembly according to claim 1, characterized in that, A second abutment plate (340) is provided on the side of the turntable (310) away from the first abutment plate (320). The second abutment plate (340) is slidably connected to the first abutment plate (320). The turntable (310) also has a friction protrusion (311) on the side away from the first abutment plate (320). The second abutment plate (340) is also provided with an abutment slope (321) corresponding to the friction slope (312).

6. The luminaire with a stepless locking assembly according to claim 5, characterized in that, The second abutment plate (340) and the first abutment plate (320) are connected by a non-circular column (323) and a limiting guide hole (341) to achieve sliding connection and angular constraint.

7. The luminaire with a stepless locking assembly according to claim 5, characterized in that, The turntable (310) has a through hole (313) at its center, and the first abutment plate (320) and the second abutment plate (340) pass through the through hole (313) and cooperate with each other.

8. The luminaire with a stepless locking assembly according to claim 7, characterized in that, The through hole (313) is a round hole, and a slip ring (350) to reduce the friction of the contact surface is provided between the first abutment plate (320), the second abutment plate (340) and the side wall of the through hole (313).

9. The luminaire with a stepless locking assembly according to claim 5, characterized in that, The second abutment plate (340) is fixed to the support base (200), and the operating lever (330) abuts against the side of the second abutment plate (340) away from the first abutment plate (320) at the end away from the first abutment plate (320).

10. The luminaire with a stepless locking assembly according to claim 1, characterized in that, The angle between the friction inclined surface (312) and the turntable (310) is greater than 78 degrees and less than 82 degrees.

11. The luminaire with a stepless locking assembly according to claim 1, characterized in that, The control lever (330) is threadedly connected to the first abutment plate (320), and drives the first abutment plate (320) to approach the turntable (310) by rotation.

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