Locking device of stage lamp and stage lamp thereof

Abstract

The utility model relates to a stage lamp locking device and a stage lamp thereof.The stage lamp comprises a base and a head rotationally arranged on the base, the locking device comprises a sliding part, a connecting rod mechanism and a driving mechanism, the sliding part is arranged on the base in a sliding mode, and one end of the connecting rod mechanism is hinged to the base; the other end of the connecting rod mechanism is movably connected with the driving mechanism, and when the driving mechanism drives the hinged end of the connecting rod mechanism to rotate to the locking position, the hinged end of the connecting rod mechanism can drive the sliding piece to slide to abut against the bottom end of the head to limit rotation of the head; when the driving mechanism drives the hinged end of the connecting rod mechanism to rotate to the unlocking position, the hinged end of the connecting rod mechanism, the sliding piece and the bottom end of the head are separated from abutting, and at the moment, the head can rotate relative to the base. In this way, it is effectively guaranteed that the locking device has good stability after being locked, and looseness is prevented; meanwhile, the bearing capacity is large, and impact resistance is achieved, so that the defect that deformation clamping or locking failure is caused by external force collision is overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of stage light illumination, and particularly to a locking device for a stage light and the stage light thereof. Background Art

[0002] During the transportation and handling of stage lights, it is easy for the lights to rotate due to their own ease of rotation, which may cause damage to the lamp body components and related parts. At the same time, for the convenience of assembly and maintenance, the rotation of the lamp head part is restricted. The existing locking device structure generally sets a locking handle outside the lamp body rotation shaft, and the rotation shaft is locked or released by adjusting the locking handle to achieve the fixation or rotation of the lamp head. However, the locking handle is prone to deformation and jamming or locking failure due to external force collision during transportation, its stability is not strong, and the locking structure is relatively complex, occupying a large amount of external space of the lamp body, making the stage light appear cumbersome. Summary of the Invention

[0003] The present invention provides a locking device with a simple, compact and good stability structure and a stage light applying the locking device to solve one of the above technical problems.

[0004] To solve the above technical problems, the present invention provides the following technical solutions:

[0005] A locking device for a stage light, the stage light includes a base and a head rotatably arranged on the base, a locking device is arranged between the base and the head, the locking device includes a sliding member, a link mechanism and a driving mechanism, the sliding member is slidably arranged on the base, one end of the link mechanism is hinged to the base, the other end of the link mechanism is movably connected to the driving mechanism, the hinged end of the link mechanism has a locking position and an unlocking position, when the driving mechanism drives the hinged end of the link mechanism to rotate to the locking position, the hinged end of the link mechanism can drive the sliding member to slide to abut against the bottom end of the head to limit the rotation of the head; when the driving mechanism drives the hinged end of the link mechanism to rotate to the unlocking position, the hinged end of the link mechanism, the sliding member and the bottom end of the head are disengaged from each other, and at this time the head can rotate relative to the base.

[0006] Further defined, the link mechanism includes a first link and a second link, one end of the first link is hinged to one end of the second link, the other end of the first link is hinged to the base, and the other end of the second link is movably connected to the driving mechanism.

[0007] Further limitation is made that the other end of the first link is fixedly connected with a rotating shaft. The other end of the first link is hinged to the base through the rotating shaft. At the eccentric position of the end of the rotating shaft, a part is cut off along its axial direction so that the rotating shaft is formed with two parts, one part is a flat part and the other part is a convex circular part. The locking position is when the convex circular part of the rotating shaft rotates to a position opposite to the bottom of the sliding part, and at this time the convex circular part drives the sliding part to abut against the bottom end of the head; the unlocking position is when the flat part of the rotating shaft rotates to a position opposite to the bottom of the sliding part, and at this time the flat part disengages from the abutment with the sliding part.

[0008] Further limitation is made that the base is fixedly provided with a first fixing member. Flanging parts are formed by folding both sides of the first fixing member. An articulated space for placing the rotating shaft is formed between the two flanging parts. The flanging parts are hinged to the rotating shaft through a pin shaft.

[0009] Further limitation is made that a strip-shaped sliding hole is formed in one of the flanging parts. The sliding parts are arranged on both sides of the flanging part. One sliding part is fixedly connected with the other sliding part through a fastener passing through the strip-shaped sliding hole, so that the sliding part slides relative to the flanging part.

[0010] Further limitation is made that a strip-shaped hole is formed in the second link. One end of the first link is hinged to the strip-shaped hole through a hinge shaft.

[0011] Further limitation is made that the driving mechanism includes a guide post fixedly arranged on the base and a driving rod rotatably arranged on the base. The other end of the second link is fixedly connected with a guide block. The guide block is provided with a guide hole and a threaded hole. The guide block is matched with the guide post through the guide hole. The guide block is matched with the external thread of the driving rod through the threaded hole. During the rotation process of the driving rod, the guide block can be driven to move along the length direction of the guide post, so that the driving rod drives the rotating shaft to switch back and forth between the locking position and the unlocking position through the guide block, the first link and the second link in sequence.

[0012] Further limitation is made that the driving mechanism further includes a second fixing member and a third fixing member both fixedly connected with the base. The second fixing member and the third fixing member enclose a sliding space for guiding the sliding of the guide block together. The guide post is fixedly connected with the second fixing member and the third fixing member respectively, so that it is fixed in the sliding space; the driving rod passes through the second fixing member and the third fixing member respectively, so that it can rotate in the sliding space.

[0013] A stage light including the locking device includes a base and a head rotatable relative to the base. The locking device is arranged between the base and the head.

[0014] After adopting the above technical solution, the present invention has at least the following beneficial effects:

[0015] The driving mechanism drives the hinge end of the link mechanism to rotate so as to drive the sliding of the sliding member. When the sliding member abuts against the head, the head is in a locked state and the head can be fixed relative to the base; when the sliding member does not abut against the head, the head is in an unlocked state and the head can rotate. The transmission ratio of the link mechanism in the locking device is large, and only a small force input to the driving mechanism can be converted into a large force output, effectively ensuring that the locking device has good stability after locking and preventing loosening; at the same time, it also has the characteristics of large load-bearing capacity and impact resistance, thus overcoming the defects of deformation jamming or locking position failure caused by external force collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of a locking device provided between the base and the head;

[0017] Figure 2 It is a structural diagram of the locking device;

[0018] Figure 3 It is an exploded view of the locking device;

[0019] Figure 4 It is a structural diagram of the flat part and the convex circular part of the rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be further described in detail below with reference to the drawings and specific embodiments.

[0021] As shown in Figure 1 to Figure 4 shown, the present invention provides a locking device for a stage light and the stage light. Among them, the stage light includes a base 1 and a head 2 rotatably provided on the base 1. A locking device 10 is provided between the base 1 and the head 2. The locking device 10 includes a sliding member 3, a link mechanism 4 and a driving mechanism 5. The sliding member 3 is slidably provided on the base 1. One end of the link mechanism 4 is hinged to the base 1, and the other end of the link mechanism 4 is movably connected to the driving mechanism 5. The hinge end of the link mechanism 4 has a locked position and an unlocked position. When the driving mechanism 5 drives the hinge end of the link mechanism 4 to rotate to the locked position, the hinge end of the link mechanism 4 can drive the sliding member 3 to slide to abut against the bottom end of the head 2 to limit the rotation of the head 2; when the driving mechanism 5 drives the hinge end of the link mechanism 4 to rotate to the unlocked position, the hinge end of the link mechanism 4, the sliding member 3 and the bottom end of the head 2 are disengaged from abutting, and at this time the head 2 can rotate relative to the base 1.

[0022] The specific working principle is as follows: The operator can drive the articulated end of the linkage mechanism 4 through the operating drive mechanism 5 to rotate, so as to drive the sliding of the sliding member 3. When the sliding member 3 abuts against the head 2, the head 2 is in the locked state and can be fixed relative to the base 1. When the sliding member 3 does not abut against the head 2, the head 2 is in the unlocked state and can rotate.

[0023] Furthermore, the transmission ratio of the linkage mechanism 4 in the locking device 10 is large. Only a relatively small force input to the drive mechanism 5 can be converted into a relatively large force output, effectively ensuring that the locking device 10 has good stability after locking and preventing loosening. At the same time, it also has the characteristics of large load-bearing capacity and impact resistance, thus overcoming the defects of deformation jamming or lock position failure caused by external force collision.

[0024] As shown in the appendix Figure 2 and the appendix Figure 3 As shown, the linkage mechanism 4 includes at least two linkages, namely the first linkage 41 and the second linkage 42. One end of the first linkage 41 is hinged to one end of the second linkage 42. The other end of the first linkage 41 is hinged to the base 1. The other end of the second linkage 42 is movably connected to the drive mechanism 5. The linkage between the drive mechanism 5 and the sliding member 3 is realized through the two linkages, thus ensuring the effectiveness of the mechanical transmission between the components.

[0025] As shown in the appendix Figure 4 As shown, a rotating shaft 40 is fixedly connected to the other end of the first linkage 41. The other end of the first linkage 41 is hinged to the base 1 through the rotating shaft 40. At the eccentric position at the end of the rotating shaft 40, it is cut along its axial direction to form two parts of the rotating shaft 40. One part is the flat part 401, and the other part is the convex circular part 402, so that the rotating shaft 40 has different radii to facilitate driving the sliding member 3 to move. The locking position is the position where the convex circular part 402 of the rotating shaft 40 rotates to face the bottom of the sliding member 3. At this time, the convex circular part 402 drives the sliding member 3 to abut against the bottom end of the head 2. The unlocking position is the position where the flat part 401 of the rotating shaft 40 rotates to face the bottom of the sliding member 3. At this time, the flat part 401 disengages from the abutment with the sliding member 3. Specifically, the bottom end of the head 2 is an annular flange edge. The sliding member 3 moves radially relative to the annular flange edge and abuts against the inner side thereof. The bottom of the sliding member 3 has a notch, and the rotating shaft 40 is located in the notch. The switching between the locking position and the unlocking position is realized through the flat part 401 and the convex circular part 402 of the rotating shaft 40, thus completing the rotation or fixation of the lamp head.

[0026] As shown in the appendix Figure 2 and the appendix Figure 3As shown, the base 1 is fixedly provided with a first fixing member 6. Flanging portions 61 are formed by folding both sides of the first fixing member 6. An articulated space 60 for accommodating the rotating shaft 40 is formed between the two flanging portions 61. The flanging portions 61 are articulated to the rotating shaft 40 through a pin shaft 62. Specifically, one end of the pin shaft 62 sequentially passes through one flanging portion 61, the shaft hole of the rotating shaft 40, and the other flanging portion 61, thereby realizing the rotational connection between the rotating shaft 40 and the first fixing member 6.

[0027] In this embodiment, a strip-shaped sliding hole 611 is formed in one of the flanging portions 61. Sliding members 3 are arranged on both sides of this flanging portion 61. One of the sliding members 3 is fixedly connected to the other sliding member 3 through a fastener passing through the strip-shaped sliding hole 611, enabling the sliding member 3 to slide relative to the flanging portion 61. The strip-shaped sliding hole 611 mainly serves as a guiding function, facilitating the sliding member 3 to slide back and forth on the flanging portion 61 for switching between unlocking and locking.

[0028] In this embodiment, a strip-shaped hole 421 is formed in the second connecting rod 42. One end of the first connecting rod 41 is articulated to the strip-shaped hole 421 through a hinge shaft. This strip-shaped hole 421 allows the first connecting rod 41 to have sufficient clearance space during rotation.

[0029] In this embodiment, the driving mechanism 5 includes a guide post 51 fixedly arranged on the base 1 and a driving rod 52 rotatably arranged on the base 1. The other end of the second connecting rod 42 is fixedly connected with a guide block 43. The guide block 43 is provided with a guide hole 431 and a threaded hole 432. The guide block 43 is matched with the guide post 51 through the guide hole 431, and the guide block 43 is matched with the external thread of the driving rod 52 through the threaded hole 432. During rotation, the driving rod 52 can drive the guide block 43 to move along the length direction of the guide post 51, enabling the driving rod 52 to drive the rotating shaft 40 to switch back and forth between the locked position and the unlocked position through the guide block 43, the first connecting rod 41, and the second connecting rod 42 in sequence. Specifically, if the driving rod 52 drives the guide block 43 on the second connecting rod 42 to move downward, it will drive the rotating shaft 40 of the first connecting rod 41 to lock the head; if the driving rod 52 drives the guide block 43 on the second connecting rod 42 to move downward, it will drive the rotating shaft 40 of the first connecting rod 41 to lock the head.

[0030] In this embodiment, the driving mechanism 5 further includes a second fixing member 53 and a third fixing member 54 both fixedly connected to the base 1. The second fixing member 53 and the third fixing member 54 enclose a sliding space 500 for the guiding block 43 to slide. The guide posts 51 are fixedly connected to the second fixing member 53 and the third fixing member 54 respectively, so as to be fixed in the sliding space 500. The driving rod 52 passes through the second fixing member 53 and the third fixing member 54 respectively, so that it can rotate in the sliding space 500. Specifically, the second fixing member 53 is composed of a transverse portion 531, a first longitudinal portion 532 and a second longitudinal portion 533. The first longitudinal portion 532 is arranged at one end of the transverse portion 531 and extends upward. The second longitudinal portion 533 is arranged at the other end of the transverse portion 531 and extends downward. The guide post 51 is fixed to the transverse portion 531. One end of the third fixing member 54 is folded to form a folded edge, that is, an "L" shape. The main body of the third fixing member 54 is fixedly connected to the second longitudinal portion 533. A gap for inserting the second connecting rod 42 is left between the folded edge and the first longitudinal portion 532. The composition of the sliding space 500 is simple and compact, which is beneficial to improving the assembly efficiency.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various equivalent changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalent scope.

Claims

1. A locking device for a stage lamp, the stage lamp comprising a base (1) and a head (2) rotatably arranged on the base (1), characterized in that: A locking device (10) is provided between the base (1) and the head (2), the locking device (10) comprising a sliding member (3), a connecting rod mechanism (4) and a driving mechanism (5), the sliding member (3) being slidably arranged on the base (1), one end of the connecting rod mechanism (4) being hinged to the base (1), the other end of the connecting rod mechanism (4) being movably connected to the driving mechanism (5), the hinged end of the connecting rod mechanism (4) having a locking position and an unlocking position, when the driving mechanism (5) drives the hinged end of the connecting rod mechanism (4) to rotate to the locking position, the hinged end of the connecting rod mechanism (4) can drive the sliding member (3) to slide to abut against the bottom end of the head (2) to limit the rotation of the head (2); when the driving mechanism (5) drives the hinged end of the connecting rod mechanism (4) to rotate to the unlocking position, the hinged end of the connecting rod mechanism (4), the sliding member (3) and the bottom end of the head (2) are disengaged from abutment, and at this time the head (2) can rotate relative to the base (1).

2. The locking device according to claim 1, characterized in that: The connecting rod mechanism (4) comprises a first connecting rod (41) and a second connecting rod (42); one end of the first connecting rod (41) is hinged to one end of the second connecting rod (42); the other end of the first connecting rod (41) is hinged to the base (1); and the other end of the second connecting rod (42) is movably connected to the driving mechanism (5).

3. The locking device according to claim 2, characterized in that: The other end of the first connecting rod (41) is fixedly connected to a rotating shaft (40), and the other end of the first connecting rod (41) is hinged to the base (1) via the rotating shaft (40). An eccentric portion of the end of the rotating shaft (40) is cut away along its axial direction so that the rotating shaft (40) has two parts, one of which is a flat portion (401) and the other is a convex portion (402). The locking position is when the convex portion (402) of the rotating shaft (40) rotates to a position opposite to the bottom of the sliding member (3), and at this time, the convex portion (402) drives the sliding member (3) to abut against the bottom end of the head (2); the unlocking position is when the flat portion (401) of the rotating shaft (40) rotates to a position opposite to the bottom of the sliding member (3), and at this time, the flat portion (401) is out of contact with the sliding member (3).

4. The locking device according to claim 3, characterized in that: The base (1) is fixedly provided with a first fixing member (6), and the first fixing member (6) is folded at both sides to form flanged portions (61), and a hinged space (60) for accommodating the rotating shaft (40) is formed between the two flanged portions (61), and the flanged portion (61) is hingedly connected to the rotating shaft (40) via a pin shaft (62).

5. The locking device according to claim 4, characterized in that: One of the flanged portions (61) is provided with a strip-shaped sliding hole (611), and the sliding members (3) are provided on both sides of the flanged portion (61). One of the sliding members (3) is fixedly connected to the other sliding member (3) by a fastener passing through the strip-shaped sliding hole (611), so that the sliding member (3) slides relative to the flanged portion (61).

6. The locking device according to claim 3, characterized in that: The second connecting rod (42) is provided with a strip-shaped hole (421), and one end of the first connecting rod (41) is hingedly connected to the strip-shaped hole (421) via a hinge shaft.

7. The locking device according to any one of claims 3 to 6, characterized in that: The driving mechanism (5) comprises a guide column (51) fixedly arranged on the base (1) and a driving rod (52) rotatably arranged on the base (1); the other end of the second connecting rod (42) is fixedly connected to a guide block (43); the guide block (43) is provided with a guide hole (431) and a threaded hole (432); the guide block (43) cooperates with the guide column (51) through the guide hole (431); the guide block (43) cooperates with the external thread of the driving rod (52) through the threaded hole (432); the driving rod (52) can drive the guide block (43) to move along the length direction of the guide column (51) during the rotation process, so that the driving rod (52) sequentially links the rotating shaft (40) through the guide block (43), the first connecting rod (41) and the second connecting rod (42) to switch back and forth between the locking position and the unlocking position.

8. The locking device according to claim 7, characterized in that: The driving mechanism (5) further comprises a second fixing member (53) and a third fixing member (54) both fixedly connected to the base (1); the second fixing member (53) and the third fixing member (54) mutually surround a sliding space (500) for the guide block (43) to guide and slide; the guide column (51) is respectively fixedly connected to the second fixing member (53) and the third fixing member (54) so ​​as to be fixed in the sliding space (500); and the driving rod (52) is respectively inserted into the second fixing member (53) and the third fixing member (54) so ​​as to be rotatable in the sliding space (500).

9. A stage light comprising the locking device according to any one of claims 1 to 8, characterized in that: It comprises a base (1) and a head (2) that rotates relative to the base (1), wherein the locking device (10) is arranged between the base (1) and the head (2).

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