Stage lamp zoom lifting mechanism

Abstract

The utility model relates to a stage lamp zoom lifting mechanism. The stage lamp zoom lifting mechanism comprises a fixedly-arranged guide rod. The guide rod is slidably connected with a sliding block moving in the axial direction of the guide rod. The sliding block is further connected with a lead screw used for driving the sliding block to move. The screw rod is driven by a motor; the lead screw and the guide rod are arranged in parallel. According to the utility model, the lead screw is used for driving, the linearity of the light emitting assembly during movement is improved, and the stability and durability of the light emitting assembly during linear movement are realized in cooperation with further guiding of the guide rod; furthermore, the connecting position of the lead screw and the guide rod is arranged at the relatively far position on the sliding block, so that the contact area is larger when the lifting mechanism is connected with the light emitting assembly, the stability is better during movement, the gravity center of the light emitting assembly can be closer to the lead screw, the bending moment borne by the lead screw is reduced, and it is guaranteed that the lead screw can only bear the vertical load as much as possible.

Description

Technical Field

[0001] The utility model relates to the field of stage lights, in particular to a zoom lifting mechanism for stage lights. Background Art

[0002] Stage lights usually require a lifting device to adjust the focus, so as to change the light output effect. The lifting device used for stage lights usually uses a belt drive structure to adjust the lifting, and then uses a limiting member arranged on the guide rail to limit the moving stroke. Since the lens assembly has a relatively heavy weight, during frequent movement, the lifting assembly may fail to limit the lens, so a more reliable structure needs to be considered.

[0003] The lens in the stage light plays a very important role in the light output focusing effect of the light guide column. The linearity of the lens movement is very important for the light emission direction. If the linearity of the movement of the lens assembly (i.e., the light output assembly) is not good during the focusing process, it will affect the light output effect; although the lifting devices in the existing structures have a relatively small installation volume and good stability, such as the structures in the patents with the patent publication numbers of CN219933768U and CN221035618U, the driving structure has only a single guide rail. After being connected to the light output assembly, the stability of the linear movement is not high, and it may cause smooth movement during some vibrations or drops. Content of the Utility Model

[0004] In order to solve the above problems of the existing technology, the utility model provides a zoom lifting mechanism for stage lights.

[0005] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0006] A zoom lifting mechanism for stage lights includes a fixedly arranged guide rod; a slider slidingly connected to the guide rod and moving axially along the guide rod; a lead screw connected to the slider for driving the slider to move; the lead screw is driven by a motor; the lead screw is arranged parallel to the guide rod.

[0007] Further, the slider is slidingly connected to the guide rod through a linear bearing arranged inside.

[0008] Further, a support portion extends outward from the slider; the support portion is fixedly connected to the lead screw.

[0009] Further, a reset plate is fixedly connected to the top of the lead screw; the reset plate is fixedly connected to the support portion through a connecting shaft.

[0010] Further, an induction head is formed on one side of the reset plate; the induction head cooperates with a magnetically induced PCB arranged opposite to realize the reset of the position of the induction head.

[0011] Further, the top of the support part is connected to the light-emitting component through a connecting plate.

[0012] Further, the lead screw penetrates through the motor; the top of the lead screw is fixedly connected to the slider; one end of the motor close to the slider is fixedly connected with a support plate; the support plate is fixedly connected to the radiator through a plurality of spacer columns.

[0013] Further, the radiator is provided with a motor accommodation groove; the motor is arranged in the motor accommodation groove and is spaced from the motor accommodation groove; a accommodation cavity for accommodating the lead screw extends below the motor accommodation groove.

[0014] Further, the top of the guide rod is fixedly connected to the housing through a fixing block.

[0015] The beneficial effects of the present utility model are as follows: By changing to a lead screw for driving, the linearity during the movement of the light-emitting component is improved. At the same time, with the further guidance of the guide rod, the stability and durability during the linear movement of the light-emitting component are realized; further, the connection position of the lead screw and the guide rod is set at a relatively far position on the slider, so that when the lifting mechanism is connected to the light-emitting component, it has a larger contact area, better stability during movement, the center of gravity of the light-emitting component can be closer to the lead screw, reducing the bending moment on the lead screw, and ensuring that the lead screw can bear only vertical loads as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a cross-sectional schematic diagram of the use state of the structure of the present utility model;

[0019] Description of the reference numerals:

[0020] 110, guide rod; 120, slider; 121, support part; 122, fixing block; 123, linear bearing; 130, lead screw; 131, fixing head; 140, motor; 141, support plate; 142, spacer column; 150, reset plate; 151, induction head; 152, magnetic induction PCB; 160, connecting shaft; 170, connecting plate; 200, light-emitting component; 210, radiator; 211, motor accommodation groove; 212, accommodation cavity; 220, housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, 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 some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] For the embodiment, please refer to Figure 1-2 as shown in

[0025] A zoom lifting mechanism for a stage light, comprising a fixed guide rod 110; the guide rod 110 is usually a cylindrical guide rod 110; a slider 120 that slides on the guide rod 110 and moves axially along the guide rod 110 is connected to the guide rod 110; the guide rod 110 is fixedly arranged to provide a guiding effect for the movement of the slider 120; in one embodiment, the top of the guide rod 110 is fixedly arranged and is fixedly connected to the housing 220 through a fixing block 122, as Figure 2As shown, the fixed block 122 is fixedly arranged on the inner side of the top of the outer shell 220; in another embodiment, the guide rod 110 can also be fixedly connected to the radiator 210 through the bottom to guide the slider 120; a lead screw 130 for driving the slider 120 to move is further connected to the slider 120; the lead screw 130 is driven by a motor 140; the lead screw 130 is arranged in parallel with the guide rod 110. By driving the slider 120 with the lead screw 130 and the slider 120 moving under the guiding action of the guide rod 110 at the same time, better linear mobility of the slider 120 can be achieved.

[0026] In one embodiment, the slider 120 is slidably connected to the guide rod 110 through a linear bearing 123 arranged inside; a support portion 121 extends outward from the slider 120; the support portion 121 is fixedly connected to the lead screw 130; the support portion 121 is usually formed by extending horizontally and is perpendicular to the axial direction of the guide rod 110; the lead screw 130 is fixed on the side of the support portion 121 away from the guide rod 110. By setting it in this way, a larger distance can be achieved between the lead screw 130 and the guide rod 110. When the support portion 121 is connected to the light-emitting component 200, the connection distance is faster and better stability is achieved; in one embodiment, each of the four corners of the light-emitting component 200 is connected with a lifting mechanism of the present invention, and the stable linear movement of the light-emitting component 200 is realized by the simultaneous operation of the four lifting mechanisms. As Figure 2 shown, two lifting mechanisms are shown. It can be seen from the figure that the distance between the lead screws 130 in the two relatively arranged lifting mechanisms is relatively close. The support portion 121 extends the distance between the lead screw 130 and the guide rod 110, so that the lead screws 130 in the two relatively arranged lifting mechanisms can be arranged at a closer distance. In this way, the bending moment on the lead screw 130 can be reduced, ensuring that the lead screw 130 can bear only vertical loads as much as possible. The operation of the lead screw 130 will be smoother, with a longer service life and less noise; the guide rod 110 effectively guides the slider 120 on the outer side. The linear movement of the lead screw 130 and the linear movement of the slider 120 cooperate to further enhance the linearity when the light-emitting component 200 moves, and at the same time, it also has better seismic performance.

[0027] In one embodiment, a reset plate 150 is fixedly connected to the top of the lead screw 130; the reset plate 150 is fixedly connected to the support portion 121 through a connecting shaft 160; an induction head 151 is formed on one side of the reset plate 150; the induction head 151 cooperates with the oppositely arranged magnetic induction PCB 152 to realize the reset of the position of the induction head 151; the lead screw 130 passes through the motor 140; the top of the lead screw 130 is fixedly connected to the slider 120; one end of the motor 140 close to the slider 120 is fixedly connected to a support plate 141; the magnetic induction PCB 152 is fixedly connected to the support plate 141; the reset plate 150 is fixed to the upper end of the lead screw 130 by clamping, as Figure 1 shown, the reset plate 150 is usually provided with a through hole sleeved on the lead screw 130, and a limiting structure is provided on the lead screw 130 below the reset plate 150. The top of the lead screw 130 clamps the reset plate 150 therein to realize fixation; the fixing head 131 can be a conventional nut structure, which is convenient for installation, and the structure of the fixing head 131 will occupy the position at the top of the reset plate 150, affecting the installation of the support portion 121; by setting the connecting shaft 160 to form a spaced space, threaded holes are provided at both the upper and lower ends of the connecting shaft 160, and are respectively fixedly connected to the support portion 121 and the reset plate 150 through screws / screws; the magnetic induction PCB 152 cooperates with the induction head 151. When the whole machine is powered on, it plays a role in resetting the light emitting component 200 / lens component to the initial point for subsequent program control of the distance;

[0028] In one embodiment, the top of the support portion 121 is connected to the light emitting component 200 through a connecting plate 170;

[0029] In one embodiment, the support plate 141 is fixedly connected to the radiator 210 through a plurality of spacer posts 142; the radiator 210 is provided with a motor accommodation groove 211; the motor 140 is arranged in the motor accommodation groove 211 and is spaced from the motor accommodation groove 211; a accommodation cavity 212 for accommodating the lead screw 130 extends below the motor accommodation groove 211; by being fixedly connected to the radiator 210 through the spacer posts 142, the bottom of the motor 140 is spaced from the motor accommodation groove 211, that is, the bottom of the motor 140 does not directly contact the motor accommodation groove 211, which can avoid the vibration of the motor 140 during operation from generating noise with the radiator 210. Indirect connection through the support plate 141 and the spacer posts 142 helps to reduce noise; by setting the motor accommodation groove 211, the occupation of the space of the light emitting component 200 by the motor 140 is reduced, and the internal space is optimized.

[0030] The utility model improves the linearity when the light-emitting component 200 moves by changing to a lead screw 130 for driving, and at the same time, further guides with the guide rod 110 to achieve the stability and durability when the light-emitting component 200 moves linearly; further, the connection positions of the lead screw 130 and the guide rod 110 are set at relatively far positions on the slider 120, so that when the lifting mechanism is connected to the light-emitting component 200, it has a larger contact area, better stability during movement, the center of gravity of the light-emitting component 200 can be closer to the lead screw 130, reducing the bending moment on the lead screw 130 and ensuring that the lead screw 130 can bear only vertical loads as much as possible.

[0031] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A stage light zoom lifting mechanism, characterized in that: The invention comprises a fixed guide rod (110); a slider (120) is slidably connected to the guide rod (110) and moves axially along the guide rod (110); a screw rod (130) is also connected to the slider (120) and is used to drive the slider (120) to move; the screw rod (130) is driven by a motor (140); and the screw rod (130) is arranged in parallel with the guide rod (110).

2. The stage light zoom lifting mechanism according to claim 1, characterized in that: The slider (120) is slidably connected to the guide rod (110) via a linear bearing (123) disposed inside.

3. The stage light zoom lifting mechanism according to claim 2, characterized in that: A support portion (121) is formed on the sliding block (120) and extends outward; the support portion (121) is fixedly connected to the screw rod (130).

4. The stage light zoom lifting mechanism according to claim 3, characterized in that: A reset plate (150) is fixedly connected to the top of the screw rod (130); the reset plate (150) is fixedly connected to the support portion (121) via a connecting shaft (160).

5. The stage light zoom lifting mechanism according to claim 4, characterized in that: An induction head (151) is formed on one side of the reset plate (150); the induction head (151) cooperates with a magnetic induction PCB (152) arranged opposite to it to achieve the resetting of the position of the induction head (151).

6. The stage light zoom lifting mechanism according to claim 3, characterized in that: The top of the support portion (121) is connected to the light output assembly (200) via a connecting plate (170).

7. The stage light zoom lifting mechanism according to claim 1, characterized in that: The screw rod (130) is arranged to penetrate the motor (140); the top of the screw rod (130) is fixedly connected to the slider (120); one end of the motor (140) close to the slider (120) is fixedly connected to a support plate (141); the support plate (141) is fixedly connected to the radiator (210) via a plurality of spacer columns (142).

8. The stage light zoom lifting mechanism according to claim 7, characterized in that: The heat sink (210) is provided with a motor accommodating groove (211); the motor (140) is arranged in the motor accommodating groove (211) and is spaced apart from the motor accommodating groove (211); and an accommodating cavity (212) for accommodating the screw rod (130) is extended below the motor accommodating groove (211).

9. The stage light zoom lifting mechanism according to claim 1, characterized in that: The top of the guide rod (110) is fixedly connected to the housing (220) via a fixing block (122).

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