Locking device of stage lamp

Abstract

The utility model relates to a stage lamp locking device which comprises a support and a lamp body rotationally connected with the support, the lamp body is fixedly provided with a rotating shaft, the support is provided with a shaft hole matched with the rotating shaft, the rotating shaft penetrates through the shaft hole and then is fixedly connected with a rotating piece with the diameter larger than that of the shaft hole, and a fixing column is fixedly arranged on the support. The fixing column is in threaded connection with a pressing piece, and the pressing piece and the rotating piece can be mutually extruded when the pressing piece is adjusted and locked, so that the lamp body is fixed relative to the support. When the pressing piece is adjusted to be loose, the rotating piece is separated from extrusion of the pressing piece, so that the lamp body rotates relative to the support, and a user can operate the pressing piece for locking; the locking device can lock the rotation of the lamp body at any angle, so that the angle adjusting precision of the lamp body is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stage lamp lighting, in particular to a locking device of a stage lamp. BACKGROUND

[0002] The locking structure of the prior art stage lamp is as follows: the lamp body is rotationally connected with the support through a rotating shaft, the rotating shaft is fixedly connected with a rotating piece, the rotating piece is uniformly distributed with a plurality of notches on the outer periphery, the support is pivotally connected with a locking piece, the locking piece is provided with a clamping block, and when locking, the clamping block of the locking piece is driven to be clamped into the notch to lock the rotating shaft. The defects of the locking structure are: 1. When locking, the notch needs to be rotated to the position corresponding to the clamping block to be clamped in, if the notch and the clamping block are misaligned, the rotating shaft cannot be locked, in addition, the lamp body rotation is adjusted by the angle, which can be understood as the minimum adjustment angle is the included angle between adjacent notches, resulting in low accuracy of the adjustment rotation angle; 2. The lamp body rotation has no limiting device, and the lamp body is easy to collide with other parts during rotation, causing damage or failure. Therefore, we urgently need to solve the technical solutions of the above defects. SUMMARY

[0003] To solve one of the above technical problems, the present application provides a locking device of a stage lamp, which not only has high-precision angle adjustment, but also effectively limits the rotation angle of the lamp body to prevent collision.

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

[0005] A locking device of a stage lamp, comprising a support and a lamp body rotationally connected with the support, the lamp body is fixedly provided with a rotating shaft, the support is provided with a shaft hole matched with the rotating shaft, the rotating shaft is fixedly connected with a rotating piece larger in diameter than the shaft hole after penetrating through the shaft hole, the support is fixedly provided with a fixed column, the fixed column is threadedly connected with a pressing piece, the pressing piece can be extruded with the rotating piece to fix the lamp body relative to the support when adjusting and locking, and the rotating piece is extruded away from the pressing piece to rotate the lamp body relative to the support when adjusting and loosening.

[0006] Further limited, the pressing piece is driven by a driving handle, the outer periphery of the pressing piece is uniformly distributed with a plurality of teeth or / and tooth grooves, and the driving handle is provided with a tooth groove or / and a tooth corresponding to the teeth or / and tooth grooves.

[0007] Further limited, the fixed column is provided with a first gasket respectively located on both sides of the pressing piece and a limiting piece fixedly connected with the free end of the fixed column.

[0008] Further limited to, the rotating piece is provided with an arc-shaped hole through which the fixed column passes and used for limiting the angle range rotation of the lamp body.

[0009] Further limited to, the rotating shaft is provided with a second gasket between the support and the rotating piece.

[0010] Further limited to, the rotating shaft is further provided with a third gasket between the support and the lamp body.

[0011] Further limited to, the free end of the rotating shaft is oppositely provided with two arc-shaped blocks, first matching grooves are formed between the adjacent side ends of the arc-shaped blocks, the rotating piece is provided with an opening, the inner wall of the opening is oppositely provided with two inward protruding insertion blocks, second matching grooves are formed between the adjacent side ends of the insertion blocks, the arc-shaped blocks are matched with the second matching grooves and the insertion blocks are matched with the first matching grooves when the rotating shaft is inserted into the rotating piece.

[0012] Further limited to, a channel opening is formed at the center of the free end of the rotating shaft, the lamp body has a first inner cavity, the support has a second inner cavity, and the first inner cavity and the second inner cavity are communicated through the channel opening.

[0013] After the above technical scheme is adopted, the present application has at least the following beneficial effects:

[0014] 1. When the locking is adjusted, the pressing part can be extruded with the rotating piece to increase the friction between the pressing part and the rotating piece, so as to achieve the locking effect, and then the lamp body is fixed relative to the support; when the loosening is adjusted, the rotating piece is extruded from the pressing part, so that the lamp body rotates relative to the support. After the lamp body is rotated to the predetermined angle position, the user can operate the pressing part to lock; the locking device can lock the arbitrary angle rotation of the lamp body, thereby improving the angle adjustment accuracy of the lamp body.

[0015] 2. The rotating piece is provided with an arc-shaped hole through which the fixed column passes and used for limiting the angle range rotation of the lamp body, the angle rotation range of the lamp body can be limited according to the radian of the arc-shaped hole, and the collision with other components due to the too large rotation angle of the lamp body is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is an exploded view of the locking device;

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

[0018] Figure 3 is one of the cross-sectional views of the locking device;

[0019] Figure 4 is the second cross-sectional view of the locking device;

[0020] Figure 5 is a structural view of a rotating piece. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0022] As shown in the accompanying Figure 1 and the accompanying Figure 2 , a locking device of a stage lamp includes a support 1 and a lamp body 2 rotationally connected with the support 1, the lamp body 2 is fixedly provided with a rotating shaft 20, the support 1 is provided with a shaft hole 10 matched with the rotating shaft 20, the rotating shaft 20 is fixedly connected with a rotating piece 3 larger in diameter than the shaft hole 10 after penetrating through the shaft hole 10, the support 1 is fixedly provided with a fixed column 11, the fixed column 11 is threadedly connected with a pressing piece 4, specifically, the peripheral surface of the fixed column 11 is provided with external threads, and the pressing piece 4 has an internal threaded hole, the fixed column 11 is threadedly connected with the internal threaded hole of the pressing piece 4 through the external threads, thus, the pressing piece 4 can be extruded with the rotating piece 3 when adjusting locking, the friction between the pressing piece 4 and the rotating piece 3 is increased, a locking effect is achieved, and the lamp body 2 is fixed relative to the support 1; when adjusting loosening, the rotating piece 3 is extruded away from the pressing piece 4, and the lamp body 2 is rotated relative to the support 1. After the lamp body 2 is rotated to a predetermined angular position, a user can operate the pressing piece 4 to lock; the locking device can lock the lamp body 2 at any angle, thereby improving the angular adjustment accuracy of the lamp body 2.

[0023] As shown in the accompanying Figure 2 , the pressing piece 4 is driven by a driving handle 5, the peripheral surface of the pressing piece 4 is uniformly and circumferentially provided with a plurality of teeth 41 or / and tooth grooves, the driving handle 5 is provided with tooth grooves 51 or / and teeth corresponding to the teeth 41 or / and tooth grooves one by one, the tooth grooves of the driving handle 5 can be engaged with the teeth, so that the driving handle 5 is rotated to drive the pressing piece 4 to rotate synchronously.

[0024] As shown in the accompanying Figure 3 , the fixed column 11 is provided with a first gasket 52 located on each side of the pressing piece 4 and a limiting piece 53 fixedly connected with the free end of the fixed column 11, specifically, one of the first gaskets 52 is arranged between the rotating piece 3 and the pressing piece 4, the first gasket 52 mainly increases the stability of the connection and prevents the pressing piece 4 from loosening when locking; the other first gasket 52 is arranged between the pressing piece 4 and the limiting piece 53, the first gasket 52 has a limiting effect in addition to the anti-loosening effect, the first gasket 52 can abut against the teeth of the driving handle 5 to prevent the driving handle 5 from coming out.

[0025] As shown in the accompanyingFigure 2 and attached Figure 5 As shown, the rotating plate 3 has an arc-shaped hole 30 through which the fixed column 11 passes and which limits the rotation range of the lamp body 2. The rotation range of the lamp body 2 can be limited according to the arc of the arc-shaped hole 30 to prevent the lamp body 2 from colliding with other components due to excessive rotation angle.

[0026] As attached Figure 4 As shown, the rotating shaft 20 is provided with a second washer 60 located between the support 1 and the rotating plate 3, and the rotating shaft 20 is also provided with a plurality of third washer 61 located between the support 1 and the lamp body 2. Similarly, the second washer 60 and the third washer 61 can increase the stability of the connection of the rotating shaft 20, and can also play a role in shock absorption, which is conducive to the smooth rotation of the lamp body 2.

[0027] As attached Figure 2 As shown, two arc-shaped blocks 21 are arranged at intervals on the free end of the rotating shaft 20. The two arc-shaped blocks 21 are symmetrical about the center, and the center of symmetry coincides with the axis of the rotating shaft 20. A first matching groove 22 is formed between the adjacent side ends of the arc-shaped blocks 21. The rotating plate 3 is provided with an opening 31, and the center of the opening 31 coincides with the axis. Two inwardly protruding inserts 32 are provided on the inner wall of the opening 31. A second matching groove 33 is formed between the adjacent side ends of the inserts 32. When the rotating shaft 20 and the rotating plate 3 are inserted, the arc-shaped blocks 21 cooperate with the second matching groove 33, and the inserts 32 cooperate with the first matching groove 22, thereby completing the quick insertion of the rotating shaft 20 and the rotating plate 3, and improving the transmission smoothness between the rotating shaft 20 and the rotating plate 3.

[0028] As attached Figure 4 As shown, a channel opening 201 is provided at the center of the free end of the rotating shaft 20. The lamp body 2 has a first inner cavity, and the support 1 has a second inner cavity. The first inner cavity and the second inner cavity are connected through the channel opening 201. Specifically, the light source circuit board is installed in the first inner cavity, and the power supply and other electronic devices are installed in the second inner cavity. The channel opening 201 allows the power line to pass through so that the light source circuit board and the power supply and other electronic devices are electrically connected.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking device of a stage lamp, comprising a support (1) and a lamp body (2) rotatably connected with the support (1), wherein the lamp body (2) is fixedly provided with a rotating shaft (20), the support (1) is provided with a shaft hole (10) matched with the rotating shaft (20), and the rotating shaft (20) is fixedly connected with a rotating piece (3) larger in diameter than the shaft hole (10) after penetrating through the shaft hole (10), characterized in that, The support (1) is fixedly provided with a fixed column (11), the fixed column (11) is threadedly connected with a pressing part (4), when the pressing part (4) is adjusted to be locked, the pressing part (4) can be extruded with the rotating piece (3), so that the lamp body (2) is fixed relative to the support (1); when the pressing part (4) is adjusted to be loosened, the rotating piece (3) is extruded away from the pressing part (4), so that the lamp body (2) is rotated relative to the support (1).

2. The locking device of claim 1, wherein The pressing part (4) is driven by a driving handle (5), the outer periphery of the pressing part (4) is uniformly and circumferentially provided with a plurality of teeth (41) or / and tooth grooves, the driving handle (5) is provided with a tooth groove (51) or / and a tooth corresponding to the teeth (41) or / and the tooth grooves.

3. The locking device of claim 1, wherein The fixed column (11) is provided with a first gasket (52) located on both sides of the pressing part (4) and a limiting part (53) fixedly connected with the free end of the fixed column (11).

4. The locking device of claim 1, wherein The rotating piece (3) is provided with an arc-shaped hole (30) for the fixed column (11) to pass through and for limiting the angle range of the lamp body (2).

5. The locking device of claim 1, wherein The rotating shaft (20) is provided with a second gasket (60) located between the support (1) and the rotating piece (3).

6. The locking device of claim 1, wherein The rotating shaft (20) is further provided with a third gasket (61) located between the support (1) and the lamp body (2).

7. The locking device according to any one of claims 1 to 6, characterized in that The free end of the rotating shaft (20) is oppositely and spacedly provided with two arc-shaped blocks (21), the adjacent side ends of the arc-shaped blocks (21) are formed with a first matching groove (22), the rotating piece (3) is provided with an opening (31), the inner wall of the opening (31) is oppositely provided with two inwardly protruding insertion blocks (32), the adjacent side ends of the insertion blocks (32) are formed with a second matching groove (33), when the rotating shaft (20) is inserted into the rotating piece (3), the arc-shaped blocks (21) are matched with the second matching groove (33), and the insertion blocks (32) are matched with the first matching groove (22).

8. The locking device according to any one of claims 1 to 6, wherein The center of the free end of the rotating shaft (20) is provided with a passage opening (201), the lamp body (2) has a first inner cavity, the support (1) has a second inner cavity, and the first inner cavity and the second inner cavity are communicated through the passage opening (201).

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