Locking device for stage lamp and stage lamp

Abstract

The utility model discloses a locking device for a stage lamp and the stage lamp, the locking device comprises a locking device and a rotating device, and a plurality of locking holes are formed in the peripheral side of the rotating device at intervals; the locking device comprises a knob, a locking bearing, a locking cam and a locking block which are arranged in sequence; the rotary knob penetrates through the locking bearing and is connected with the locking cam in a matched mode. The locking cam is at least provided with a wide side and a narrow side, arc-shaped grooves are formed in the edges of the wide side and the narrow side of the outer side of the locking cam, and the edge of the outer side of the locking cam faces the direction of the locking hole; the locking block is located between the locking cam and the locking hole. A locking shaft and an elastic piece are arranged in the locking block, and the elastic piece is arranged on the outer side of the locking shaft in a sleeving mode; one end of the locking shaft is always propped against the outer side edge of the locking cam through the elastic piece, and the locking cam is rotated, so that one end, far away from the locking cam, of the locking shaft penetrates through the locking block and is inserted into or separated from the locking hole.

Description

Technical Field

[0001] The utility model belongs to the field of stage lights, and particularly relates to a locking device for stage lights and a stage light. Background Art

[0002] With the increasing diversification and high quality of people's pursuit of entertainment life, the lighting effects in stage performances have become an indispensable part. Stage lights not only need to provide a clear visual experience for the audience, but also need to be flexibly adjusted according to the performance content and atmosphere. Therefore, as an important tool for fixing and adjusting lighting equipment, the stability and flexibility of the stage light locking device have become the key requirements for technological development. The technological development of the stage light locking device has experienced a process from simple to complex and from manual to automated. In the early stage, stage lighting equipment was mainly fixed and adjusted through simple mechanical structures, such as using fasteners like bolts and nuts to fix the lighting equipment on the bracket. With the progress of technology, more complex locking devices have emerged, such as functions of lifting and rotating realized through mechanical principles such as gears and levers. In recent years, with the development of automation and intelligent technologies, the stage light locking device has been able to achieve functions such as remote control and automatic adjustment, greatly improving the flexibility and accuracy of stage lighting effects.

[0003] At present, most of the existing stage light locking devices have complex structures, and the positioning accuracy of the locking and unlocking parts is relatively poor, which will cause the lighting to be unstable and shake. The operation of the locking device is relatively complex and not convenient, and the flexibility during adjustment is also poor. Summary of the Invention

[0004] In view of the problems in the related art, the utility model provides a locking device for stage lights and a stage light. By setting a lock position cam structure with a wide side and a narrow side, and utilizing the pushing force on the lock position shaft during rotation and the elastic force of the elastic member, the locking and unlocking of the lock position shaft on the stage light rotation device are realized.

[0005] The utility model is realized as follows:

[0006] A locking device for stage lights is arranged in a U-shaped lamp holder. One side of the U-shaped lamp holder is provided with a rotating device, and the other side is provided with a rotating part corresponding to the rotating device. Both sides of the stage light are respectively connected to the rotating device and the rotating part; the locking device is located on the side where the rotating device is located;

[0007] A plurality of lock position holes are arranged at intervals on the periphery of the rotating device; the locking device includes a knob, a lock position bearing, a lock position cam, and a lock position block arranged in sequence;

[0008] The knob passes through the locking bearing and is engaged with the locking cam; the locking cam has at least a wide side and a narrow side, and arc-shaped grooves are respectively provided on the outer edges of its wide side and narrow side, and the outer edge of the locking cam faces the direction of the locking hole; the locking block is located between the locking cam and the locking hole and is fixed in the U-shaped lamp holder; a locking shaft and an elastic member are provided in the locking block, and the elastic member is sleeved on the outer side of the locking shaft; one end of the locking shaft is always abutted against the outer edge of the locking cam through the elastic member, and by rotating the locking cam, the end of the locking shaft away from the locking cam passes through the locking block and is inserted into or disengaged from the locking hole.

[0009] Preferably, a positioning head is provided at the end of the locking shaft that abuts against the locking cam, and an annular boss is provided on the side of the locking shaft close to the positioning head;

[0010] The arc-shaped grooves on the wide side are symmetrical to each other, and the arc-shaped grooves on the narrow side are symmetrical to each other.

[0011] Specifically, the positioning head always remains in a state of abutting against the outer edge of the locking cam, and the positioning head is adapted to the arc-shaped groove;

[0012] Since the locking cam has a wide side and a narrow side, when the positioning head is engaged in the arc-shaped groove on the wide side, the other end of the locking shaft is inserted into the locking hole to lock the rotating device and prevent it from rotating; when the positioning head is engaged in the arc-shaped groove on the narrow side, the other end of the locking shaft disengages from the locking hole to release the locking state of the rotating device.

[0013] Preferably, a shaft hole is provided inside the locking block, and the locking shaft passes through the shaft hole from the side where the locking cam is located and extends to one side of the locking hole; a circular retaining platform is formed by the inward protrusion of the side of the shaft hole close to the locking hole, and both ends of the elastic member are respectively abutted against the circular retaining platform and the annular boss.

[0014] Specifically, the elastic member can be a spring, and the locking block is fixed in the U-shaped lamp holder. By using one end of the spring to abut against the circular retaining platform in the locking block and the other end to abut against the annular boss of the locking shaft, the locking shaft can always abut against the outer edge of the locking cam. By rotating the locking cam, the other end of the locking shaft is pushed to be inserted into or disengaged from the locking hole.

[0015] Preferably, a locking bearing seat is provided on the outer side of the locking bearing, the locking bearing seat is fixed on the inner side wall of the U-shaped lamp holder, a bearing outer ring cover is further fixed on the surface of the locking bearing seat, and a bearing inner ring washer is provided inside the bearing outer ring cover, and the bearing inner ring washer is connected to the locking bearing;

[0016] The locking block is fixed on the locking bearing seat.

[0017] Specifically, a relevant component with a locking bearing is arranged between the knob and the locking cam, ensuring that the rotation of the knob is more stable, and the knob can rotate 360 degrees.

[0018] The locking block is fixed on the locking bearing seat, and the locking bearing seat is fixed inside the U-shaped lamp holder, thereby indirectly ensuring the fixed state of the locking block. The elastic member abuts against one end of the annular retaining platform inside the locking block to maintain a fixed position, while the other end of the elastic member always presses the locking shaft against the outer edge of the locking cam.

[0019] Preferably, a knob shaft is provided on one side of the knob facing the U-shaped lamp holder. The knob shaft sequentially passes through the locking bearing and the bearing inner ring washer and is connected to the locking cam.

[0020] Specifically, the locking bearing and the bearing inner ring washer are directly sleeved on the rotating shaft of the knob, which can make the knob more flexible when controlling the locking and unlocking of the locking shaft.

[0021] Preferably, the locking cam is oval, and four arc-shaped grooves are provided on the outer edge of the locking cam. The four arc-shaped grooves are respectively located at the edges closest to and farthest from the center of the oval.

[0022] Specifically, the two ends of the long axis of the oval are the wide sides, and the two ends of the short axis of the oval are the narrow sides; the four arc-shaped grooves are respectively arranged at the two ends of the long axis and the two ends of the short axis of the oval, and are symmetrically arranged, which can make the knob rotate 360 degrees, thus making locking and unlocking more convenient.

[0023] Preferably, four arc-shaped grooves are provided on the outer edge of the locking cam; the four arc-shaped grooves are respectively located at the edges closest to and farthest from the center of the locking cam; a recessed part is provided between the arc-shaped grooves.

[0024] Specifically, the four arc-shaped grooves are arranged at the edges closest to and farthest from the center of the locking cam, which can ensure the balance of the locking cam and the stability during its rotation; the recessed part can prevent the other end of the locking shaft from extending into the locking hole during the rotation of the locking cam; thus preventing the locking shaft from protruding into the locking hole and getting stuck in the rotation path of the rotating device when it abuts against the edge area of the non-arc-shaped groove.

[0025] Preferably, the rotating device includes a large rotating pulley. A belt is wound around the outer periphery of the large rotating pulley, and the other end of the belt is wound around a small rotating pulley. The small rotating pulley is connected to a driving motor; the locking device is located between the large rotating pulley and the small rotating pulley.

[0026] Specifically, the driving motor drives the rotating small pulley to rotate, and the rotating small pulley drives the rotating large pulley to rotate through a belt; when the stage light is adjusted to a suitable angle through the rotating large pulley, the rotating large pulley is locked through the locking holes and the locking device on the circumferential side of the rotating large pulley to avoid the shaking of the stage light.

[0027] Preferably, a bearing seat assembly is provided inside the rotating large pulley. The bearing seat assembly includes a rotating bearing seat and a rotating bearing. A lamp head rotation limiting member is connected to the bearing seat assembly in the direction towards the outside of the U-shaped lamp holder. A lamp head rotation waterproof oil seal is further provided inside the rotating bearing seat. The lamp head rotation waterproof oil seal is connected to the rotating bearing, and a lamp head rotation shaft is provided inside the rotating bearing.

[0028] Specifically, the rotating large pulley is connected to the stage light through components such as the bearing seat assembly; the other end of the U-shaped lamp holder is provided with a rotating part corresponding to the rotating large pulley. The stage light is connected through the lamp head rotation shafts at both ends to achieve rotation in the vertical direction, and thus the irradiation angle of the stage light can be adjusted.

[0029] A stage light applies a locking device for a stage light as described in any one of the above.

[0030] Compared with the prior art, the present utility model has the following beneficial effects:

[0031] The present utility model provides a locking device for a stage light and a stage light. The locking device is arranged inside the U-shaped lamp holder. A rotating device is also provided inside the U-shaped lamp holder, and locking holes are provided on the circumferential side of the rotating device; by rotating the knob of the locking device, the locking cam is driven to rotate. The locking cam has a wide side and a narrow side, so that the locking shaft against the outer edge of the locking cam by the elastic member is inserted into or disengaged from the locking hole, thereby realizing the functions of locking and unlocking the rotating device. At the same time, the locking device adopts a locking cam similar to an ellipse, making the positioning of the locking and unlocking parts more accurate, and the locking / unlocking structure is simpler compared to using a positioning head to engage with the double grooves on the push rod; the locking bearing is directly sleeved outside the knob shaft, which can make the locking and unlocking more flexible; in addition, an arc-shaped groove is provided on the circumferential side of the locking cam structure similar to an ellipse, which can make the knob rotate 360 degrees, making the locking and unlocking more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a product schematic diagram of a locking device for a stage light in Embodiment 1 of the present utility model;

[0033] Figure 2 It is a structural schematic diagram of a locking device for a stage light in Embodiment 1 of the present utility model;

[0034] Figure 3One of the partial structural schematic diagrams of a locking device for a stage light in Embodiment 1 of the present utility model;

[0035] Figure 4 Another partial structural schematic diagram of a locking device for a stage light in Embodiment 1 of the present utility model;

[0036] Figure 5 Exploded structural schematic diagram of a locking device for a stage light in Embodiment 1 of the present utility model;

[0037] Figure 6 Cross-sectional structural schematic diagram of a locking device for a stage light in Embodiment 1 of the present utility model;

[0038] Figure 7 Structural schematic diagram of the locking cam of a locking device for a stage light in Embodiment 1 of the present utility model;

[0039] Figure 8 Structural schematic diagram of the locking shaft of a locking device for a stage light in Embodiment 1 of the present utility model;

[0040] Figure 9 Structural schematic diagram of the locking block of a locking device for a stage light in Embodiment 1 of the present utility model;

[0041] Figure 10 Structural schematic diagram of a locking device for a stage light in Embodiment 2 of the present utility model;

[0042] Figure 11 Structural schematic diagram of the locking cam of a locking device for a stage light in Embodiment 2 of the present utility model.

[0043] Reference numerals:

[0044] 1. Locking device; 11. Knob; 111. Knob shaft; 12. Locking bearing; 121. Locking bearing seat; 122. Bearing outer ring cover; 123. Bearing inner ring washer; 13. Locking cam; 131. Arc-shaped groove; 132. Depressed part; 14. Locking block; 141. Ring-shaped retaining platform; 15. Locking shaft; 151. Positioning head; 152. Ring-shaped boss; 16. Elastic member;

[0045] 2. Rotating device; 21. Rotating large pulley; 211. Locking hole; 22. Rotating small pulley; 23. Driving motor; 24. Bearing seat assembly; 25. Lamp head rotation limiting member; 26. Lamp head rotation waterproof oil seal; 27. Lamp head rotation shaft;

[0046] 3. U-shaped lamp holder; 4. Rotating part. Detailed implementation manners

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0048] Embodiment 1

[0049] As Figures 1 to 9 , a locking device for a stage light is provided in a U-shaped lamp holder 3. One side of the U-shaped lamp holder 3 is provided with a rotating device 2, and the other side is provided with a rotating part 4 corresponding to the rotating device 2. Both sides of the stage light are respectively connected to the rotating device 2 and the rotating part 4; the locking device is located on the side where the rotating device 2 is located.

[0050] The rotating device 2 includes a large rotating pulley 21. A belt is wound around the outer circumference of the large rotating pulley 21, and the other end of the belt is wound around a small rotating pulley 22. The small rotating pulley 22 is connected to a driving motor 23; the locking device is located between the large rotating pulley 21 and the small rotating pulley 22.

[0051] The driving motor 23 drives the small rotating pulley 22 to rotate, and the small rotating pulley 22 drives the large rotating pulley 21 to rotate through the belt; when the stage light is adjusted to a suitable angle through the large rotating pulley 21, the large rotating pulley 21 is locked through the locking holes 211 on the circumferential side of the large rotating pulley 21 and the locking device to avoid the shaking of the stage light.

[0052] An inner side of the large rotating pulley 21 is provided with a bearing seat assembly 24. The bearing seat assembly 24 includes a rotating bearing seat and a rotating bearing. The bearing seat assembly 24 is connected with a lamp head rotation limiting member 25 in the direction towards the outside of the U-shaped lamp holder 3. An inner side of the rotating bearing seat is further provided with a lamp head rotation waterproof oil seal 26. The lamp head rotation waterproof oil seal 26 is connected to the rotating bearing, and an inner side of the rotating bearing is provided with a lamp head rotation shaft 27.

[0053] The large rotating pulley 21 is connected to the stage light through components such as the bearing seat assembly 24; the other end of the U-shaped lamp holder 3 is provided with a rotating part 4 corresponding to the large rotating pulley 21. The stage light is connected through the lamp head rotation shafts 27 at both ends to realize rotation in the vertical direction, and further the irradiation angle of the stage light can be adjusted.

[0054] A plurality of locking holes 211 are arranged at intervals on the circumference of the rotating device 2;

[0055] The locking device includes a knob 11, a locking bearing 12, a locking cam 13, and a locking block 14 arranged in sequence;

[0056] The knob 11 passes through the locking bearing 12 and is engaged with the locking cam 13; the locking cam 13 is provided with at least a wide side and a narrow side, and the outer edges of the wide side and the narrow side are respectively provided with arc-shaped grooves 131, and the outer edge of the locking cam 13 is facing the direction of the locking hole 211; the locking block 14 is located between the locking cam 13 and the locking hole 211 and is fixed in the U-shaped lamp holder 3; a locking shaft 15 and an elastic member 16 are provided in the locking block 14, and the elastic member 16 is sleeved on the outer side of the locking shaft 15; through the elastic member 16, one end of the locking shaft 15 is always in contact with the outer edge of the locking cam 13, and the locking cam 13 is rotated so that the end of the locking shaft 15 away from the locking cam 13 passes through the locking block 14 and is inserted into or disengaged from the locking hole 211.

[0057] The locking cam 13 is elliptical in shape, and four arcuate grooves 131 are provided on the outer edge of the locking cam 13 . The four arcuate grooves 131 are respectively located at the edge closest to and farthest from the center of the ellipse.

[0058] The two ends of the elliptical major axis are the wide sides, and the two ends of the elliptical minor axis are the narrow sides; the four arc-shaped grooves 131 are respectively arranged at the two ends of the elliptical major axis and the two ends of the minor axis, and are symmetrically arranged, so that the knob 11 can rotate 360 degrees, making locking and unlocking more convenient.

[0059] The locking shaft 15 is provided with a positioning head 151 at one end thereof abutting against the locking cam 13 , and an annular boss 152 is provided on the side of the locking shaft 15 close to the positioning head 151 ;

[0060] The arc-shaped grooves 131 on the wide side are symmetrical to each other, and the arc-shaped grooves 131 on the narrow side are symmetrical to each other.

[0061] The positioning head 151 always remains in contact with the outer edge of the locking cam 13, and the positioning head 151 is adapted to the arc-shaped groove 131;

[0062] Since the locking cam 13 is provided with a wide side and a narrow side, when the positioning head 151 is engaged with the arc groove 131 on the wide side, the other end of the locking shaft 15 is inserted into the locking hole 211, locking the rotating device 2 to prevent it from rotating; when the positioning head 151 is engaged with the arc groove 131 on the narrow side, the other end of the locking shaft 15 is disengaged from the locking hole 211, releasing the locking state of the rotating device 2.

[0063] An axial hole is provided inside the locking block 14, and the locking shaft 15 passes through the axial hole from the side where the locking cam 13 is located and extends to one side of the locking hole 211; the side of the axial hole close to the locking hole 211 protrudes inward to form an annular stop 141, and the two ends of the elastic member 16 respectively abut against the annular stop 141 and the annular boss 152.

[0064] The elastic member 16 can be a spring. The locking block 14 is fixed inside the U-shaped lamp holder 3. By using one end of the spring to abut against the annular retaining platform 141 inside the locking block 14 and the other end to abut against the annular boss 152 of the locking shaft 15, the locking shaft 15 can always abut against the outer edge of the locking cam 13. By rotating the locking cam 13, the other end of the locking shaft 15 is pushed to be inserted into or disengaged from the locking hole 211.

[0065] A locking bearing seat 121 is provided on the outer side of the locking bearing 12. The locking bearing seat 121 is fixed to the inner side wall of the U-shaped lamp holder 3. A bearing outer ring cover 122 is also fixed on the surface of the locking bearing seat 121. A bearing inner ring washer 123 is provided inside the bearing outer ring cover 122. The bearing inner ring washer 123 is in contact with the locking bearing 12.

[0066] The locking block 14 is fixed to the locking bearing seat 121.

[0067] A related component of the locking bearing 12 is arranged between the knob 11 and the locking cam 13 to ensure that the rotation of the knob 11 is more stable, and the knob 11 can rotate 360 degrees.

[0068] The locking block 14 is fixed to the locking bearing seat 121, and the locking bearing seat 121 is fixed inside the U-shaped lamp holder 3, thereby indirectly ensuring the fixed state of the locking block 14. One end of the elastic member 16 abuts against the annular retaining platform 141 inside the locking block 14 and remains in a fixed position, while the other end of the elastic member 16 always presses the locking shaft 15 against the outer edge of the locking cam 13.

[0069] A knob shaft 111 is provided on the side of the knob 11 facing the U-shaped lamp holder 3. The knob shaft 111 passes through the locking bearing 12 and the bearing inner ring washer 123 in sequence and is connected to the locking cam 13.

[0070] The locking bearing 12 and the bearing inner ring washer 123 are directly sleeved on the rotating shaft of the knob 11, which can make the knob 11 more flexible when controlling the locking and disengagement of the locking shaft 15.

[0071] A stage lamp applies a locking device for a stage lamp as described above.

[0072] The present utility model provides a locking device for a stage lamp and a stage lamp. Its working principle is as Figures 3 - 4, Rotate the knob 11, causing the oval-shaped locking cam 13 to rotate accordingly. The locking shaft 15 always abuts against the outer edge of the locking cam 13 through the elastic member 16. When the locking shaft 15 abuts against the arc-shaped groove 131 at the long-axis end of the locking cam 13, the locking cam 13 pushes the other end of the locking shaft 15 into the locking hole 211 to lock the rotating device 2. When the locking shaft 15 abuts against the arc-shaped groove 131 at the short-axis end of the locking cam 13, the elastic force of the elastic member 16 drives the locking shaft 15 to disengage from the locking hole 211 to unlock the rotating device 2.

[0073] Embodiment 2

[0074] Such as Figures 10 to 11 , A locking device for a stage light, arranged in the U-shaped lamp holder 3. One side of the U-shaped lamp holder 3 is provided with a rotating device 2, and the other side is provided with a rotating part 4 corresponding to the rotating device 2. Both sides of the stage light are respectively connected to the rotating device 2 and the rotating part 4; The locking device is located on the side where the rotating device 2 is located;

[0075] A number of locking holes 211 are arranged at intervals on the circumferential side of the rotating device 2;

[0076] The locking device includes a knob 11, a locking bearing 12, a locking cam 13, and a locking block 14 arranged in sequence;

[0077] The knob 11 passes through the locking bearing 12 and is in mating connection with the locking cam 13; The locking cam 13 is at least provided with a wide side and a narrow side, and arc-shaped grooves 131 are respectively arranged on the outer edges of its wide side and narrow side. The outer edge of the locking cam 13 faces the direction of the locking hole 211; The locking block 14 is located between the locking cam 13 and the locking hole 211 and is fixed in the U-shaped lamp holder 3; A locking shaft 15 and an elastic member 16 are arranged in the locking block 14, and the elastic member 16 is sleeved on the outer side of the locking shaft 15; Through the elastic member 16, one end of the locking shaft 15 always abuts against the outer edge of the locking cam 13. Rotate the locking cam 13 to make the end of the locking shaft 15 away from the locking cam 13 pass through the locking block 14 and engage or disengage from the locking hole 211.

[0078] Four arc-shaped grooves 131 are arranged on the outer edge of the locking cam 13; The four arc-shaped grooves 131 are respectively located at the edges closest to and farthest from the center of the locking cam 13; There is a recessed part 132 between the arc-shaped grooves 131.

[0079] Specifically, the four arc-shaped grooves 131 are arranged at the nearest and farthest edges from the center of the locking cam 13, which can ensure the balance of the locking cam 13 and its stability during rotation; the recessed portion 132 can prevent the other end of the locking shaft 15 from extending into the locking hole 211 during the rotation of the locking cam 13; thus, when the locking shaft 15 abuts against the edge area other than the arc-shaped groove 131, it can be prevented from protruding into the locking hole 211 and getting stuck in the rotation path of the rotating device 2.

[0080] For other structures and principles not mentioned in this embodiment, reference can be made to Embodiment 1.

[0081] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above-described embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A locking device for a stage light, which is arranged inside a U-shaped lamp holder. One side of the U-shaped lamp holder is provided with a rotating device, and the other side is provided with a rotating part corresponding to the rotating device. Two sides of the stage light are respectively connected to the rotating device and the rotating part; the locking device is located on the side where the rotating device is located; characterized in that, A number of locking holes are arranged at intervals on the circumferential side of the rotating device; the locking device includes a knob, a locking bearing, a locking cam, and a locking block arranged in sequence; The knob passes through the locking bearing and is in mating connection with the locking cam; the locking cam is at least provided with a wide side and a narrow side, and arc-shaped grooves are respectively arranged on the outer edges of its wide side and narrow side. The outer edge of the locking cam faces the direction of the locking hole; the locking block is located between the locking cam and the locking hole and is fixed inside the U-shaped lamp holder; a locking shaft and an elastic member are arranged inside the locking block, and the elastic member is sleeved on the outer side of the locking shaft; one end of the locking shaft is always abutted against the outer edge of the locking cam through the elastic member. Rotate the locking cam to make the end of the locking shaft away from the locking cam pass through the locking block and be inserted into or disengaged from the locking hole.

2. The locking device for a stage light according to claim 1, characterized in that A positioning head is arranged at the end of the locking shaft that abuts against the locking cam, and an annular boss is arranged on the side of the locking shaft close to the positioning head; The arc-shaped grooves on the wide side are symmetrical to each other, and the arc-shaped grooves on the narrow side are symmetrical to each other.

3. The locking device for a stage light according to claim 2, characterized in that, A shaft hole is arranged inside the locking block, and the locking shaft passes through the shaft hole from the side where the locking cam is located and extends to one side of the locking hole; the side of the shaft hole close to the locking hole bulges inward to form an annular retaining platform, and two ends of the elastic member respectively abut against the annular retaining platform and the annular boss.

4. The locking device for a stage light according to claim 1, characterized in that, A locking bearing seat is arranged on the outer side of the locking bearing, and the locking bearing seat is fixed on the inner side wall of the U-shaped lamp holder. A bearing outer ring cover is also fixed on the surface of the locking bearing seat, and a bearing inner ring washer is arranged inside the bearing outer ring cover, and the bearing inner ring washer is connected to the locking bearing; The locking block is fixed on the locking bearing seat.

5. The locking device for a stage light according to claim 4, characterized in that, A knob shaft is arranged on the side of the knob facing the U-shaped lamp holder. The knob shaft passes through the locking bearing and the bearing inner ring washer in sequence and is connected to the locking cam.

6. The locking device for a stage light according to claim 1, characterized in that, The locking cam is oval, and four arc-shaped grooves are arranged on the outer edge of the locking cam. The four arc-shaped grooves are respectively located at the edges closest to and farthest from the center of the oval.

7. The locking device for a stage light according to claim 1, wherein Four arc-shaped grooves are arranged on the outer edge of the locking cam; the four arc-shaped grooves are respectively located at the edges closest to and farthest from the center of the locking cam; a recessed part is arranged between the arc-shaped grooves.

8. The locking device for a stage light according to claim 1, characterized in that, The rotating device includes a large rotating pulley, a belt is wound around the outer circumference of the large rotating pulley, the other end of the belt is wound around a small rotating pulley, and the small rotating pulley is connected to a driving motor; the locking device is located between the large rotating pulley and the small rotating pulley.

9. The locking device for a stage light according to claim 8, characterized in that, An inner side of the rotating large pulley is provided with a bearing seat assembly, the bearing seat assembly includes a rotating bearing seat and a rotating bearing, a lamp head rotation limiting member is connected to the bearing seat assembly in a direction facing the outside of the U-shaped lamp holder, an inner side of the rotating bearing seat is further provided with a lamp head rotation waterproof oil seal, the lamp head rotation waterproof oil seal is in contact with the rotating bearing, and a lamp head rotation shaft is provided inside the rotating bearing.

10. A stage light, characterized in that, The locking device for a stage lamp according to any one of claims 1 to 9 is applied.

Images