Projection angle adjusting device for fixed projection stage lamp

Abstract

The utility model discloses a projection angle adjusting device for a fixed projection stage lamp. The projection angle adjusting device comprises a lamp shell and adjustable hoisting pieces connected to the two sides of the lamp shell. Protruding connecting shafts are arranged on the two sides of the lamp shell respectively, and adjusting pieces are arranged at the tail ends of the connecting shafts. An annular fluted disc is further arranged on the surface, surrounding the connecting shaft, of the lamp shell in a protruding mode, a shaft hole and a dial are arranged at the position where the hoisting piece is connected with the lamp shell, one face of the dial is connected with the fluted disc in a matched mode, and scales are arranged on the other face of the dial. Strip-shaped sawteeth are annularly arranged on the fluted disc, sawteeth matched with the fluted disc are arranged on the face, connected with the fluted disc, of the dial, and the fluted disc and the dial are connected in an engaged mode through the annular strip-shaped sawteeth. The connecting shaft penetrates through the dial and the shaft hole and is connected with the adjusting piece in a matched mode. The projection angle of the stage lamp is adjusted by rotating the adjusting piece. The projection direction of the stage lamp can be more effectively fixed through an occlusion connection mode, and accurate adjustment is achieved through scales.

Description

Technical Field

[0001] The utility model belongs to the technical field of stage lamp equipment, and in particular relates to a projection angle adjustment device for a fixed-projection stage lamp. Background Art

[0002] Stage lighting is one of the means of stage art modeling, which can meet the diverse needs of lighting in stage performances. By using lighting fixtures, slides, control systems and other equipment and technical means, in conjunction with the development of the plot, light color and its changes are used to display the environment, render the atmosphere, highlight the central characters, create a sense of stage space and time, shape the external image of the stage performance, and provide necessary lighting effects. The types of stage lights include spotlights, soft lights, return lights, modeling lights, light column lights, chasing lights, etc., as well as lamps for specific lighting purposes, such as face light, slap light, column light (side light), top light, backlight, bridge light, foot light, sky and earth row light and flowing light, etc. These lamps together constitute the stage lighting system. Through careful design and control, it can create a variety of stage effects and enhance the visual impact and artistic expression of the performance. In different performances, in order to meet different lighting effects and plot requirements, the projection angle of the stage lights is also different. Existing fixed-projection stage lights all have a lamp stand that can be adjusted at an angle. When the lamp is used for light adjustment, the fixing screws of the lamp on the lamp stand need to be loosened manually, and then the fixing screws are tightened after adjusting to a suitable angle. This simple adjustment method mainly fixes the projection position by tightening friction, which is easily affected by the weight of the lamp itself, loose screws or other reasons to change the projection position of the lamp, and the adjustment accuracy is poor, thus affecting the stage effect.

[0003] The Chinese patent with announcement number CN219102899U discloses an angle adjustment device and a lamp with the same, which adjusts the angle of the lamp by setting a fixing block, but does not solve the problem of effectively fixing the projection position and accurately adjusting.

[0004] Therefore, there is an urgent need to provide a projection angle adjustment device for a fixed-projection stage lamp to solve the problems existing in the prior art. Summary of the invention

[0005] In response to the problems in the related technology, the utility model proposes a projection angle adjustment device for a fixed-projection stage lamp, in which toothed plates and scale plates that are interlocked are arranged on both sides of the lamp housing. The interlocking connection can more effectively fix the projection direction of the stage lamp, and precise adjustment can be achieved using the scale.

[0006] The utility model is achieved in this way:

[0007] A projection angle adjustment device for a fixed-projection stage lamp, comprising a lamp housing and adjustable hanging parts connected to both sides of the lamp housing;

[0008] The two sides of the lamp housing are respectively provided with protruding connecting shafts, and the ends of the connecting shafts are provided with adjusting pieces;

[0009] An annular toothed disc is also protruded from the surface of the lamp housing surrounding the connecting shaft. An axial hole and a dial are respectively provided at the position where the hanging part is connected to the lamp housing. One side of the dial is matched with the toothed disc, and the other side is provided with a scale. The toothed disc has strip-shaped saw teeth arranged along a ring. The side where the dial is connected to the toothed disc is provided with saw teeth adapted to the toothed disc. The toothed disc and the dial are engaged with each other through the annular strip-shaped saw teeth. The connecting shaft passes through the dial and the axial hole, and is matched with the adjusting member. The projection angle of the stage light is adjusted by rotating the adjusting member.

[0010] Preferably, the hanging component includes a hanger and a dial connected to both sides of the hanger; the hanger includes a hanging arm and connecting arms located on both sides of the hanging arm, and the two connecting arms are parallel to each other.

[0011] Specifically, the stage light is hoisted to a desired position by a crane arm, and the crane arm may be a straight-line structure or a multi-section structure; the connecting arms are parallel to each other so that they can rotate simultaneously to achieve angle adjustment.

[0012] Preferably, the axial hole includes a first axial hole and a second axial hole;

[0013] A first axial hole is arranged at the end of the connecting arm, and a plurality of limiting grooves are arranged around the circumference of the first axial hole; a surface of the scale plate provided with scales is matched and connected to the first axial hole and the limiting grooves.

[0014] Specifically, the shaft hole is mainly used to facilitate the connection shaft to pass through and connect with the adjustment member, so that the hanging member is clamped between the lamp housing and the adjustment member, and the angle adjustment is achieved through the relative rotation of the hanging member and the lamp body;

[0015] The limiting grooves are mainly used to achieve the engagement and fixation between the scale plate and the connecting arm, and to prevent the scale plate and the connecting arm from rotating relative to each other. The limiting grooves can be symmetrically arranged on the peripheral side of the first shaft hole.

[0016] Preferably, a second axial hole is provided in the middle of the scale plate, and a stopper adapted to the first axial hole and the stopper groove is protruded from a peripheral side of the second axial hole and a side connected to the connecting arm, and the scale plate is connected to the connecting arm by embedding the stopper groove into the first axial hole and the stopper groove;

[0017] Scales are arranged around the limiting member and near the edge of the dial.

[0018] Specifically, the size of the second shaft hole is smaller than that of the first shaft hole, the shape of the limiter is adapted to the shape of the first shaft hole and the slot, and the relative fixation between the dial and the connecting arm is achieved by embedding;

[0019] The limiter and the scale are located on the same side of the scale plate.

[0020] Preferably, a screw hole is provided in the middle of the connecting shaft, and two sides of the screw hole are respectively recessed toward the side where the lamp housing is located to form two corresponding slots.

[0021] Specifically, the screw hole is located between the two slots, and the two slots facilitate the rotation of the adjusting member.

[0022] Preferably, the adjusting member includes a rotating member and a fastener; a through hole adapted to the size of the screw hole is provided in the middle of the rotating member, and both sides of the through hole protrude toward the side where the lamp housing is located, and form a locking member adapted to the slot, through which the locking member cooperates with the slot.

[0023] Specifically, by the matching connection between the locking member and the locking groove, the lamp housing and the rotating member can be connected in an adaptive manner, and relative movement between the lamp housing and the rotating member can be avoided, so that the rotating member and the lamp housing rotate synchronously when the angle is adjusted.

[0024] Preferably, the fastener passes through the through hole and the screw hole in sequence and is connected to the connecting shaft to fix the hanging member between the rotating member and the lamp housing.

[0025] Specifically, the rotating member may be a knob, and the fastener may be a hand screw; the fastener is mainly used to tighten the occlusal connection between the toothed disc and the dial, thereby avoiding changes in the adjusted angle.

[0026] Preferably, a side of the rotating member away from the lamp housing is provided with symmetrical gripping parts at its edge, and an indication mark is provided between the two gripping parts.

[0027] Specifically, the gripping portion is mainly used to facilitate the rotation of the rotating member when manually adjusting the projection angle.

[0028] Preferably, the radial width of the rotating member is smaller than the radial width of the dial, and the indicator mark of the rotating member points to the scale of the dial.

[0029] Specifically, the rotating member is smaller than the size of the scale, so that the rotating member can avoid blocking the scale, so that the indicator mark can point to the scale, thereby making the angle adjustment more accurate.

[0030] Preferably, an annular spacer is provided between the connecting shaft and the annular gear disc.

[0031] Specifically, the space of the spacing portion formed between the lamp housing and the dial can reduce the friction between the lamp housing and the dial, and make the relative rotation between the lamp housing and the dial smoother when adjusting the angle.

[0032] Compared with the prior art, the utility model achieves the following beneficial effects:

[0033] The utility model provides a projection angle adjustment device for a fixed-projection stage lamp. Toothed discs are arranged at both ends of a lamp housing. The projection position of the stage lamp is fixed by means of an engagement connection between the toothed discs and a scale plate. Compared with the traditional method of fixing the projection range by friction fastening, the engagement connection of the toothed discs is more effective and stable, and the projection position is prevented from being changed due to various reasons such as the weight of the stage lamp itself or the looseness of screws, thereby affecting the stage effect. At the same time, graduations are arranged on the scale plate, so that the adjustment of the projection angle of the stage lamp can be more accurate and consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a product schematic diagram of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0035] Figure 2 It is a partial exploded schematic diagram of the structure of a projection angle adjustment device for a fixed projection stage light in an embodiment of the utility model;

[0036] Figure 3 This is a schematic diagram of a hanger structure of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0037] Figure 4 This is one of the schematic diagrams of the scale plate structure of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0038] Figure 5 This is a second schematic diagram of the scale plate structure of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0039] Figure 6 This is a schematic diagram of the connecting shaft structure of a projection angle adjustment device for a fixed projection stage light in an embodiment of the utility model;

[0040] Figure 7 This is one of the schematic diagrams of the structure of a rotating part of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0041] Figure 8 This is a second schematic diagram of the structure of a rotating member of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0042] Fig. 9 This is a schematic diagram of a 0-degree hanging state of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0043] Fig.10 This is a schematic diagram of a 45-degree hanging state of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model;

[0044] Fig.11 It is a schematic diagram of a 90-degree hanging state of a projection angle adjustment device for a fixed-projection stage light in an embodiment of the utility model.

[0045] Reference numerals:

[0046] 101, lamp housing; 102, toothed disc; 103, spacer; 104, hanging piece; 105, adjusting piece;

[0047] 201, hanger; 202, hanging arm; 203, connecting arm; 204, first shaft hole; 205, limiting groove;

[0048] 301, dial; 302, second shaft hole; 303, stopper; 304, scale;

[0049] 401, connecting shaft; 402, screw hole; 403, slot;

[0050] 501, rotating member; 502, through hole; 503, positioning member; 504, gripping portion; 505, indication mark;

[0051] 601. Fasteners. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] Example:

[0054] like Figures 1 to 11 , a projection angle adjustment device for a fixed projection stage lamp, comprising a lamp housing 101 and adjustable hanging parts 104 connected to both sides of the lamp housing 101;

[0055] The two sides of the lamp housing 101 are respectively provided with protruding connecting shafts 401, and the ends of the connecting shafts 401 are provided with adjusting members 105;

[0056] An annular toothed disc 102 is protruded from the surface of the lamp housing 101 around the connecting shaft 401. An axial hole and a dial 301 are respectively provided at the position where the hanging part 104 is connected to the lamp housing 101. One side of the dial 301 is matched with the toothed disc 102, and the other side is provided with a scale 304. The toothed disc 102 is provided with strip-shaped saw teeth arranged along a ring. The side where the dial 301 is connected to the toothed disc 102 is provided with saw teeth adapted to the toothed disc 102. The toothed disc 102 and the dial 301 are engaged with each other through the annular strip-shaped saw teeth. The connecting shaft 401 passes through the dial 301 and the axial hole, and is matched with the adjusting member 105. The projection angle of the stage light is adjusted by rotating the adjusting member 105.

[0057] An annular spacer 103 is provided between the connecting shaft 401 and the annular gear disc 102 .

[0058] The space of the spacing portion 103 formed between the lamp housing 101 and the dial 301 can reduce the friction between the lamp housing 101 and the dial 301, and make the relative rotation between the lamp housing 101 and the dial 301 smoother when adjusting the angle.

[0059] The hanging component 104 includes a hanger 201 and a dial plate 301 connected to both sides of the hanger 201; the hanger 201 includes a hanging arm 202 and connecting arms 203 located on both sides of the hanging arm 202, and the two connecting arms 203 are parallel to each other.

[0060] The stage light is hoisted to a desired position by the suspension arm 202 . The suspension arm 202 may be a straight-line structure, and the connecting arms 203 are parallel to each other so that they can rotate simultaneously to achieve angle adjustment.

[0061] The axial hole includes a first axial hole 204 and a second axial hole 302; the first axial hole 204 is provided at the end of the connecting arm 203, and four limiting grooves 205 are provided around the circumference of the first axial hole 204; the dial 301 has a surface with a scale 304 that cooperates with the first axial hole 204 and the limiting groove 205.

[0062] The shaft hole is mainly used to facilitate the connection shaft 401 to pass through and connect with the adjustment member 105, so that the hanging member 104 is clamped between the lamp housing 101 and the adjustment member 105, and the angle adjustment is achieved through the relative rotation of the hanging member 104 and the lamp body;

[0063] The limiting grooves 205 are mainly used to achieve the engagement and fixation between the scale plate 301 and the connecting arm 203, and to prevent the scale plate 301 and the connecting arm 203 from rotating relative to each other. The limiting grooves 205 can be arranged on the peripheral side of the first shaft hole 204 in pairs and symmetrically.

[0064] A second shaft hole 302 is provided in the middle of the scale plate 301. A stopper 303 adapted to the first shaft hole 204 and the stopper groove 205 is protruded from the peripheral side of the second shaft hole 302, which is connected to the connecting arm 203. The scale plate 301 is connected to the connecting arm 203 by inserting the stopper 303 into the first shaft hole 204 and the stopper groove 205.

[0065] Scales 304 are provided around the stopper 303 and near the edge of the dial 301 .

[0066] The size of the second shaft hole 302 is smaller than that of the first shaft hole 204, and the shape of the stopper 303 is adapted to the shape of the first shaft hole 204 and the slot 403, so that the relative fixation between the dial 301 and the connecting arm 203 is achieved by embedding;

[0067] The limiting member 303 and the scale 304 are located on the same side of the scale plate 301 .

[0068] A screw hole 402 is disposed in the middle of the connecting shaft 401 , and two sides of the screw hole 402 are respectively recessed toward the side where the lamp housing 101 is located, and form two corresponding slots 403 .

[0069] The screw hole 402 is located between the two slots 403 , and the two slots 403 facilitate the rotation of the adjusting member 105 .

[0070] The adjusting member 105 includes a rotating member 501 and a fastener 601; a through hole 502 adapted to the size of the screw hole 402 is provided in the middle of the rotating member 501, and both sides of the through hole 502 protrude toward the side where the lamp housing 101 is located, and form a locking member 503 adapted to the slot 403, through which the locking member 503 is matched and connected with the slot 403.

[0071] By the engagement of the locking member 503 with the locking slot 403 , the lamp housing 101 and the rotating member 501 can be adapted to each other and relative movement between the lamp housing 101 and the rotating member 501 can be avoided, so that the rotating member 501 and the lamp housing 101 rotate synchronously when the angle is adjusted.

[0072] The fastener 601 passes through the through hole 502 and the screw hole 402 in sequence and is connected to the connecting shaft 401 , so as to fix the hanging member 104 between the rotating member 501 and the lamp housing 101 .

[0073] The rotating member 501 may be a knob, and the fastener 601 may be a hand screw; the fastener 601 is mainly used to tighten the engagement connection between the toothed disc 102 and the dial 301, so as to avoid changes in the adjusted angle.

[0074] A side of the rotating member 501 away from the lamp housing 101 is provided with symmetrical gripping portions 504 at its edge, and an indication mark 505 is provided between the two gripping portions 504 .

[0075] The gripping portion 504 is mainly used to facilitate the rotation of the rotating member 501 when manually adjusting the projection angle.

[0076] The radial width of the rotating member 501 is smaller than the radial width of the dial 301 , and the indication mark 505 of the rotating member points to the scale 304 of the dial 301 .

[0077] The rotating member 501 is smaller than the scale 304 , so that the rotating member 501 can avoid blocking the scale 304 , so that the indicator mark 505 can point to the scale 304 , thereby making the angle adjustment more accurate.

[0078] The utility model provides a projection angle adjustment device for a fixed-projection stage lamp. The adjustment principle is that when the projection angle of the stage lamp needs to be adjusted, the fastener 601 is manually loosened to loosen the engagement between the dial 301 and the toothed discs 102 on both sides of the lamp housing 101. At this time, the rotating member 501 is rotated to the required adjustment angle according to the scale 304 on the dial 301. The rotating member 501 drives the lamp housing 101 to rotate together through the engagement structure of the locking member 503 and the locking groove 403. At this time, the hanger 201 and the dial 301 generate relative rotation at the same time. When the indication mark 505 points to the target scale 304, the fastener 601 is manually tightened to make the dial 301 and the toothed discs 102 on both sides of the lamp housing 101 engage with each other, so as to achieve a more effective and stable fixed projection orientation of the stage lamp and achieve a precise adjustment effect.

[0079] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A projection angle adjustment device for a fixed-projection stage lamp, comprising a lamp housing and adjustable hanging parts connected to both sides of the lamp housing; characterized in that: The two sides of the lamp housing are respectively provided with protruding connecting shafts, and the ends of the connecting shafts are provided with adjusting pieces; An annular toothed disc is also protruded from the surface of the lamp housing surrounding the connecting shaft. An axial hole and a dial are respectively provided at the position where the hanging part is connected to the lamp housing. One side of the dial is matched with the toothed disc, and the other side is provided with a scale. The toothed disc has strip-shaped saw teeth arranged along a ring. The side where the dial is connected to the toothed disc is provided with saw teeth adapted to the toothed disc. The toothed disc and the dial are engaged with each other through the annular strip-shaped saw teeth. The connecting shaft passes through the dial and the axial hole, and is matched with the adjusting member. The projection angle of the stage light is adjusted by rotating the adjusting member.

2. The projection angle adjustment device for a fixed projection stage light according to claim 1, characterized in that: The hanging component comprises a hanger and a dial connected to both sides of the hanger; the hanger comprises a hanging arm and connecting arms located on both sides of the hanging arm, and the two connecting arms are parallel to each other.

3. The projection angle adjustment device for a fixed projection stage light according to claim 2, characterized in that: The axial hole comprises a first axial hole and a second axial hole; A first axial hole is arranged at the end of the connecting arm, and a plurality of limiting grooves are arranged around the circumference of the first axial hole; a surface of the scale plate provided with scales is matched and connected to the first axial hole and the limiting grooves.

4. The projection angle adjustment device for a fixed projection stage light according to claim 3, characterized in that: A second shaft hole is provided in the middle of the scale plate, and a stopper adapted to the first shaft hole and the stopper groove is protruded from a peripheral side of the second shaft hole and a side connected to the connecting arm. The scale plate is connected to the connecting arm by inserting the stopper groove into the first shaft hole and the stopper groove; Scales are arranged around the limiting member and near the edge of the dial.

5. The projection angle adjustment device for a fixed projection stage light according to claim 1, characterized in that: A screw hole is provided in the middle of the connecting shaft, and two sides of the screw hole are respectively recessed toward the side where the lamp housing is located, and form two corresponding slots.

6. The projection angle adjustment device for a fixed projection stage light according to claim 5, characterized in that: The adjusting member includes a rotating member and a fastener; a through hole adapted to the size of the screw hole is provided in the middle of the rotating member, and both sides of the through hole protrude toward the side where the lamp housing is located, and form a locking member adapted to the slot, through which the locking member is matched with the slot.

7. The projection angle adjustment device for a fixed projection stage light according to claim 6, characterized in that: The fastener passes through the through hole and the screw hole in sequence and is connected to the connecting shaft to fix the hanging part between the rotating part and the lamp housing.

8. The projection angle adjustment device for a fixed projection stage light according to claim 6, characterized in that: A side of the rotating member away from the lamp housing is provided with symmetrical gripping parts at its edge, and an indication mark is provided between the two gripping parts.

9. The projection angle adjustment device for a fixed projection stage light according to claim 8, characterized in that: The radial width dimension of the rotating member is smaller than the radial width dimension of the scale plate, and the indication mark of the rotating member points to the scale of the scale plate.

10. The projection angle adjustment device for a fixed projection stage light according to claim 1, characterized in that: An annular spacer is provided between the connecting shaft and the annular gear disc.

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