Stage lamp with highly-integrated shaft sleeve assembly
By integrating the limiting structure with the pulley, eliminating the spacer, and reducing the number of parts, the problem of excessive axial length in the stage light bushing assembly was solved, resulting in a stage light design that is compact, highly stable, and low in cost.
Patent Information
- Application Number
- CN202520350201.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The axial dimension of the bushing assembly of traditional stage lights is too long, which increases the height of the entire lamp, makes the structure unstable, and makes it prone to shaking and deformation, affecting the lighting effect and service life.
The embedded design integrates the limiting structure with the pulley, eliminating the spacer and reducing the number of parts. The rotation angle is limited by the limiting paddle and the limiting protrusion, and the stability is improved by the use of bearing assembly and oil seal.
The axial dimension of the bushing assembly was reduced, which improved the structural strength and stability, reduced the overall height and weight of the stage light, simplified the assembly process, and reduced production costs.
Smart Images
Figure CN223740724U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stage light technical field especially relates to a stage light of high integration of shaft sleeve assembly. BACKGROUND
[0002] As the key equipment indispensable in modern stage performance and light effect presentation, stage lights are widely used in theaters, studios, concerts, variety shows and other types of performance venues. In order to realize the multi-degree-of-freedom movement of the lamp head, the main structure of the stage light usually includes a bottom case, a support arm and a lamp head. The lamp head is pivoted to the bottom case through the support arm, thereby realizing the rotation in the pitch and horizontal directions. The rotation shaft structure between the support arm and the bottom case, i.e. the shaft sleeve assembly, is one of the key components of the stage light. However, since a large number of lines (power lines or signal lines) pass through the bottom case and the support arm or the support arm and the lamp head, in the rotation process of the lamp head or the support arm, the lines may be broken or damaged due to the excessive rotation angle. Therefore, a limiting structure is needed to limit the rotation angle of the lamp head or the support arm.
[0003] At present, the shaft sleeve structure between the traditional stage light support arm and the bottom case usually adopts the stacking mode of multiple independent components to realize the functions of rotation, support, sealing and limiting of the lamp head. The typical structure sequence is shown in Figures 1-3 , mainly including "base-limiting structure-oil seal-bearing-separation sleeve-bearing-belt wheel-wire plate" and other components. Specifically, the base is used to fix the shaft sleeve assembly and connect with the bottom case; the independent limiting structure (usually composed of a limiting tab and a matching structure) is used to limit the rotation angle of the lamp head to prevent excessive rotation; the oil seal is used to seal the bearing to prevent dust and pollutants from entering and prevent lubricating oil from leaking to ensure the normal operation of the bearing; the upper and lower bearings jointly support the rotating shaft to ensure the stability and low friction of rotation; the separation sleeve is arranged between the upper and lower bearings to separate the bearings and provide a certain axial gap; the belt wheel is used as a power input component to connect the driving mechanism (such as a motor and a belt) to realize the rotation of the lamp head; and the wire plate is used to guide and protect the wires inside the lamp head to prevent the wires from being worn or broken during rotation.
[0004] However, the above-mentioned traditional shaft sleeve assembly structure has many deficiencies in practical application, mainly in the following aspects:
[0005] Long axial size, increased overall height of the light: the traditional structure adopts the simple stacking mode of multiple components, and each component is arranged in sequence in the axial direction, resulting in an excessively long axial size of the entire shaft sleeve assembly. The height of the shaft sleeve assembly directly affects the overall height of the stage light. The excessively long shaft sleeve assembly not only increases the overall volume of the stage light, but also makes the stage light less convenient during installation and transportation, which is not conducive to the miniaturization and lightweight development trend of the stage light.
[0006] The axial distance is too long, the connecting point between the support arm and the bottom case is high, when the horizontal force acts on the lamp head, a large force arm is generated, the central shaft and the base bear a large bending moment, especially when the stage lamp is used in a side hanging manner, the bending moment effect is more obvious, the whole structure is prone to shaking and deforming, the stability and reliability of the stage lamp are reduced, and the accuracy and stability of the lighting effect are affected. Long-term shaking and deformation can also accelerate the wear and fatigue of the parts, and shorten the service life of the stage lamp. Practical new type content
[0007] In order to solve at least one technical problem in the prior art, the utility model provides a stage lamp with high integration of shaft sleeve assembly, which aims to reduce the axial size of the stage lamp shaft sleeve assembly, improve the structural strength and stability of the stage lamp, and reduce the size of the whole lamp.
[0008] The utility model relates to a stage lamp with high integration of shaft sleeve assembly, which comprises a lamp head, a support arm and a bottom case, at least one side of the lamp head is pivotally connected to the support arm, the support arm is pivotally connected to the bottom case, the pivot shaft and the shaft sleeve are matched to realize the pivot connection between the support arm and the bottom case, a bearing assembly is arranged between the pivot shaft and the shaft sleeve, the pivot shaft is selectively fixed on one of the support arm and the bottom case, the shaft sleeve is correspondingly arranged on the other one, a transmission assembly for driving the relative rotation of the support arm and the bottom case and a limiting structure for limiting the rotation angle range between the pivot shaft and the shaft sleeve are further provided, and the transmission assembly comprises a belt pulley fixedly sleeved on the pivot shaft.
[0009] According to the stage lamp with high integration of shaft sleeve assembly, the limiting structure comprises:
[0010] A limiting tab is accommodated in the interior of the annular hollow groove and movably sleeved on the pivot shaft.
[0011] The surface of the annular hollow groove is protruded to form a limiting protrusion in the direction close to the limiting tab.
[0012] During the relative rotation of the belt pulley and the limiting tab, the limiting protrusion abuts against the outer peripheral flange of the limiting tab at least one position.
[0013] The utility model discloses a stage lamp of high integration of axle sleeve subassembly still includes the limit screw of fixed connection in the axle sleeve with the consistent rotation angle with it, when the relative rotation of the pulley with the limit switch piece, the limit screw can freely pass through the limit protruding block, and the limit protruding block is in at least one position and the outer circumferential flange of limit switch piece is supported to make it rotate around the pivot axle, and the outer circumferential flange of limit switch piece is interfered with the limit protruding block in another position to limit the rotation angle between the axle sleeve and pivot axle.
[0014] The utility model discloses a stage lamp of high integration of axle sleeve subassembly, and the first limit washer is arranged between the limit switch piece and the groove bottom surface of annular hollow groove.
[0015] The utility model discloses a stage lamp of high integration of axle sleeve subassembly, and the bearing assembly includes the upper bearing and lower bearing of being connected in the pivot axle, along the axial direction of pivot axle, the pulley is located between the upper bearing and lower bearing.
[0016] The utility model discloses a stage lamp of high integration of axle sleeve subassembly, and the inner ring of upper bearing and lower bearing is respectively butt joint in the opposite two end faces of pulley;
[0017] The outer ring of upper bearing and lower bearing is respectively butt joint in the axle sleeve;
[0018] Still include with the axle sleeve fixed connection's lower bearing pressing plate;
[0019] The lower bearing pressing plate supports the outer ring of lower bearing and is away from the end face of pulley, to limit the axial position of lower bearing on pivot axle.
[0020] The utility model discloses a stage lamp of high integration of axle sleeve subassembly still includes the oil seal for sealing the gap between lower bearing pressing plate and pivot axle.
[0021] The utility model discloses a stage lamp of high integration of axle sleeve subassembly, and the bearing seat is fixed in the support arm, and the seat body for installing with support arm and the sleeve for the sleeve of upper bearing are provided to the bearing seat, and the outer ring of upper bearing is cooperated and is sleeved in the bearing seat and is supported with its inner side wall.
[0022] The utility model discloses a stage lamp of high integration of axle sleeve subassembly, and the annular avoidance groove is set up to the end face of pulley away from the limit structure, and the bearing seat is embedded to the annular avoidance groove.
[0023] The utility model discloses a stage lamp of high integration of axle sleeve assembly, still include the motor of providing driving force to the belt of driving force transmission in the pulley, the belt is simultaneously set up in the pulley with the drive shaft of motor, the pivot joint axle fixed connection is in the bottom machine case and stretches into the cavity of support arm, the axle sleeve corresponds fixed connection in support arm, the motor is located in the cavity of support arm and is fixedly connected with it, makes the motor drive support arm rotates around bottom machine case.
[0024] The utility model discloses a stage lamp of high integration of axle sleeve assembly, the pivot joint axle fixed connection is in the bottom machine case, the axle sleeve corresponds fixed connection in support arm, and the bottom machine case is provided with the base for installing the pivot joint axle, and one end of the pivot joint axle away from support arm is fixedly connected to the base.
[0025] The utility model discloses a stage lamp of high integration of axle sleeve assembly, and its main technical effect is:
[0026] 1, through the embedded design, reduces the size of axle sleeve assembly in the axial direction, thereby reducing the overall height of stage lamp, thereby reducing the axial distance,
[0027] 2, can shorten the axial distance, reduce the arm, reduce the bending moment, improve the structural strength and stability of axle sleeve assembly, especially when using stage lamp side hang, reduce the shaking and deformation, thereby being favorable to improve the structural strength and stability,
[0028] 3, due to the height reduction of axle sleeve assembly, directly contribute to the lightweight and small design of stage lamp, reduce the size of whole lamp, thereby can reduce the overall size of stage lamp,
[0029] 4, is favorable to reduce the number of parts, simplify the assembly process, reduce production cost, thereby can simplify the structure, reduce the cost. BRIEF DESCRIPTION OF DRAWINGS
[0030] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will be to the embodiment or the prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.
[0031] Figure 1 It is the support arm structure front view of prior art stage lamp,
[0032] Figure 2 It is the support arm structure side view of prior art stage lamp,
[0033] Figure 3 It is Figure 2a local enlarged view of
[0034] Figure 4 a front view of the stage lamp supporting arm of the utility model
[0035] Figure 5 is Figure 4 a side view of
[0036] Figure 6 is Figure 5 a local enlarged view of
[0037] Figure 7 an explosion view of the utility model
[0038] Figure 8 a mutual contrast view of the plan view and the front view direction sectional view of the pulley in the utility model.
[0039] Reference signs:
[0040] 100, supporting arm, 101, pivot shaft, 102, shaft sleeve
[0041] 1, pulley, 2, annular hollow groove, 3, upper bearing, 4, lower bearing, 5, limit push piece, 6, limit protruding block, 7, first limit gasket, 8, second limit gasket, 9, lower bearing pressing plate, 10, oil seal, 11, limit screw, 12, limit port, 13, rotation-stopping key slot,
[0042] 14, flat key, 15, bearing seat, 16, upper bearing pressing plate, 17, center shaft tensioning plate, 18, wire passing plate, 19, base, 20, center counterbore, 21, flange plate, 22, annular avoiding groove. DETAILED DESCRIPTION
[0043] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model. In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as the limitation of the utility model.
[0044] As Figures 4 to 8 shown, the high-integration stage lamp of the shaft sleeve assembly of the embodiment is composed of a lamp head, a support arm 100 and a bottom case, the lamp head is pivoted to the bottom case through the support arm 100, the support arm 100 and the bottom case are pivoted through the cooperation of a pivot shaft 101 and a shaft sleeve 102, a bearing assembly is arranged between the pivot shaft 101 and the shaft sleeve 102, the pivot shaft 101 is selectively fixed on one of the support arm 100 and the bottom case, the shaft sleeve 102 is correspondingly arranged on the other one, further comprising a transmission assembly for driving the relative rotation of the support arm 100 and the bottom case and a limiting structure for limiting the rotation angle range between the pivot shaft 101 and the shaft sleeve 102, the transmission assembly comprises a belt pulley 1 fixedly sleeved on the pivot shaft 101. Among them, the bearing assembly supports the pivot shaft 101 to ensure its smooth rotation, the bearing assembly can be provided with two bearings, the inner ring of each bearing is sleeved on the outer surface of the pivot shaft 101, and the outer ring of the bearing bears against the inner sleeve 102; in actual work, the bottom case of the stage lamp is fixedly installed on the truss or placed on the ground, the pivot shaft 101 is fixedly connected to the bottom case, the shaft sleeve 102 is fixedly connected to the support arm 100, and the motor is fixedly installed in the support arm 100, at this time the motor is drivingly connected with the belt pulley 1 through the belt, so that the motor drives the relative rotation of the support arm around the belt pulley 1 (i.e. the bottom case), thereby driving the lamp head to adjust the angle; the limiting structure is used to limit the rotation angle range of the lamp head, which generally needs to limit the rotation angle range of the lamp head within 720° to prevent excessive rotation. The traditional belt pulley is usually of solid structure, and the present application innovatively processes a ring-shaped hollow groove 2 in the inside of the belt pulley 1. More importantly, the original independent limiting structure is embedded in the ring-shaped hollow groove 2. This means that the limiting structure is no longer an independent component in the shaft sleeve assembly, but is integrated with the belt pulley 1, and the limiting function is realized by utilizing the space inside the belt pulley 1. Specifically, it further comprises a motor for providing driving force, and a belt for transmitting the driving force to the belt pulley 1, the belt is sleeved on the driving shaft of the motor and the belt pulley 1; the pivot shaft 101 is fixedly connected to the bottom case and extends into the cavity of the support arm 100, the shaft sleeve 102 is correspondingly fixedly connected to the support arm 100, and the motor is located in the cavity of the support arm 100 and fixedly connected thereto, so that the motor drives the support arm 100 to rotate around the bottom case.
[0045] The stage lamp structure of the embodiment, the pulley 1 is sleeved on the pivot shaft 101, and is driven to rotate through the power mechanism motor and the belt. When the motor rotates around the pulley 1, the supporting arm 100 is driven to rotate synchronously, so that the angle adjustment of the lamp head is realized. The limiting structure is embedded in the annular hollow groove 2 of the pulley 1. The specific form of the limiting structure can be a limiting tab or other suitable limiting element. When the supporting arm 100 rotates to a predetermined angle limit position relative to the pulley 1, the limiting structure embedded in the pulley 1 prevents the supporting arm 100 from continuing to rotate, thereby limiting the rotation angle between the supporting arm 100 and the pivot shaft 101, and finally achieving the purpose of limiting the rotation angle of the lamp head. It can be understood that in the traditional scheme, the limiting structure is a component independent of the pulley and the spacer sleeve, and the embodiment integrates the limiting structure with the pulley, directly reducing an independent component and simplifying the structural composition of the shaft sleeve assembly. Since the limiting structure is ingeniously embedded in the annular hollow groove 2 of the pulley 1, it no longer occupies additional axial space, so compared with the traditional scheme, the scheme of the embodiment can significantly reduce the axial size of the shaft sleeve assembly, thereby reducing the overall height of the shaft sleeve assembly. The reduction of the axial height means the reduction of the height of the pivot point of the supporting arm and the bottom box, and the force arm generated by the horizontal force acting on the lamp head is shortened. According to the mechanics principle, the bending moment is equal to the force multiplied by the force arm, and the shortening of the force arm will directly reduce the bending moment acting on the central shaft and the base. The reduction of the bending moment can effectively improve the structural strength and stability of the shaft sleeve assembly, reduce the shaking and deformation, especially when the stage lamp is used in side hanging, the effect is more obvious. This will prolong the service life of the lamp and improve the reliability of the stage lamp under various working conditions. In addition, as an important part of the stage lamp, the reduction of the height of the shaft sleeve assembly directly affects the overall height of the stage lamp. The reduction of the height of the shaft sleeve assembly helps to reduce the overall size of the stage lamp, making it more compact. At the same time, the reduction of the number of components also helps to reduce the overall weight of the stage lamp, realizing the lightweight and small size design of the stage lamp, facilitating transportation, installation and use. Moreover, the reduction of the number of components means the reduction of the assembly steps, simplifying the assembly process and improving the assembly efficiency. The reduction of the number of components directly reduces the raw material cost and manufacturing cost, thereby reducing the production cost of the stage lamp and improving the market competitiveness of the product.
[0046] In one embodiment, specifically, the bearing assembly includes the upper bearing 3 and the lower bearing 4 clamped on the pivot shaft 101 simultaneously, the pulley 1 is located between the upper bearing 3 and the lower bearing 4 in the axial direction of the pivot shaft 101, the inner rings of the upper bearing 3 and the lower bearing 4 abut against the opposite two end faces of the pulley 1 respectively; the outer rings of the upper bearing 3 and the lower bearing 4 abut against the shaft sleeve 102 respectively, by the structural arrangement mode, the pulley 1 is clamped and fixed by the upper and lower bearings, and the rotation movement relative to the support arm 100 and the bottom case is realized by the bearings, the purpose of the structural scheme is to further optimize the structure of the shaft sleeve assembly, cancel the spacer sleeve between the upper and lower bearings in the traditional scheme, thereby further reducing the axial size of the shaft sleeve assembly, and realizing the design of more compact structure. It can be understood that in most traditional stage light structures, in order to separate the upper and lower bearings and provide an axial gap, a spacer sleeve is usually arranged, and in the present scheme, the upper bearing 3 and the lower bearing 4 directly abut against the opposite end faces of the pulley 1, so that the spacer sleeve, an independent component, is omitted. Since the spacer sleeve is cancelled, the axial space originally occupied by the spacer sleeve is released, so that the axial distance between the upper bearing 3 and the lower bearing 4 is shortened, thereby directly reducing the overall axial size of the shaft sleeve assembly, and the reduction of the number of components and the shortening of the axial size make the structure of the shaft sleeve assembly more compact, improve the integration, and are more conducive to the lightweight and small size design of the stage light.
[0047] In one embodiment, specifically, the limiting structure of the present embodiment comprises a limiting tab 5 accommodated inside the annular hollow groove 2 and movably sleeved on the pivot shaft 101, the surface of the annular hollow groove 2 is protruded towards the direction close to the limiting tab 5 to form a limiting protrusion 6, and the limiting protrusion 6 abuts against the outer peripheral flange of the limiting tab 5 at least at one position during the relative rotation of the belt pulley 1 and the limiting tab 5. During operation, when the belt pulley 1 rotates under the driving of the driving mechanism, the limiting protrusion 6 integrally formed on the belt pulley 1 also rotates, and when the belt pulley 1 rotates to a specific angle, the limiting protrusion 6 will abut against the outer peripheral flange of the limiting tab 5, at this time, the positioning element (for example, a limiting screw) fixedly connected with the supporting arm 100 will be limited by the outer peripheral flange of the limiting tab 5 during rotation, that is, by pre-designing the shape and position of the limiting protrusion 6 and the limiting tab 5, the rotation angle of the belt pulley 1 can be accurately limited, so as to realize the limitation of the rotation angle of the stage lamp holder. It can be understood that the present embodiment embeds the limiting tab 5 in the annular hollow groove 2 of the belt pulley 1, realizes the high integration of the limiting structure and the belt pulley, further saves the axial space, and simplifies the overall structure, and through the accurate cooperation of the limiting protrusion 6 and the limiting tab 5, the rotation angle of the belt pulley 1 can be accurately controlled, so as to ensure that the stage lamp holder moves within a safe and reliable angle range, avoid the problems of structure damage or cable winding caused by excessive rotation, and the like, in addition, the integrated design of the limiting structure reduces the number of parts, so that the structure is more compact, and the fixed arrangement of the limiting tab 5 also improves the stability and reliability of the limiting structure.
[0048] Specifically, the limiting structure further comprises a limiting screw 11 fixedly connected with the shaft sleeve 102 and consistent with the rotation angle thereof, the limiting screw 11 is arranged in the supporting arm 100, and during the relative rotation of the belt pulley 1 and the limiting tab 5, the limiting screw 11 can freely pass through the limiting protrusion 6, and the limiting screw 11 abuts against the outer peripheral flange of the limiting tab 5 at least at one position to make the outer peripheral flange of the limiting tab 5 rotate around the pivot shaft 101, so that the outer peripheral flange of the limiting tab 5 interferes with the limiting protrusion 6 at another position to limit the rotation angle between the shaft sleeve 102 and the pivot shaft 101.
[0049] In one embodiment, specifically, a first limiting washer 7 is arranged between the limiting tab 5 and the bottom of the annular hollow groove 2, i.e. the first limiting washer 7 is placed between the limiting tab 5 and the bottom of the annular hollow groove 2, which functions to prevent metal-to-metal friction, first, to generate friction, which can drive it to rotate without screws, second, to generate abnormal noise, dropping slag, and to form a certain buffer and gap adjustment between the limiting tab 5 and the bottom of the annular hollow groove 2. By arranging the first limiting washer 7, the installation fit of the limiting tab 5 in the annular hollow groove 2 is optimized, the axial position of the limiting tab 5 is fine-tuned, and a certain buffer is provided to improve the reliability and service life of the limiting mechanism. It can be understood that the arrangement of the first limiting washer 7 in this embodiment allows the axial position of the limiting tab 5 in the annular hollow groove 2 to be fine-tuned by selecting a washer of different thickness during assembly, ensuring that the limiting tab 5 has a suitable interference amount with the limiting tab 5, improving the precision and reliability of the limiting mechanism, and the first limiting washer 7 can be made of an elastic material, which can provide a certain buffer and shock absorption effect when the limiting tab 6 interferes with the limiting tab 5, reducing impact and wear, prolonging the service life of the limiting mechanism, and the buffer effect can also reduce the noise of the limiting mechanism during operation, improving the overall performance of the stage lamp.
[0050] In one embodiment, specifically, a second limiting washer 8 is arranged between the end of the limiting tab 5 away from the pulley 1 and the end of the lower bearing 4 close to the pulley 1, i.e. the second limiting washer 8 is placed between the limiting tab 5 and the lower bearing 4, which aims to optimize the installation fit between the limiting tab 5 and the lower bearing 4 by arranging the second limiting washer 8, further fine-tune the axial position of the limiting tab 5, and provide a certain buffer to further improve the reliability and service life of the limiting mechanism. It can be understood that the second limiting washer 8 and the first limiting washer 7 work together to more finely adjust the axial position of the limiting tab 5 in the annular hollow groove 2, ensure the best working state of the limiting mechanism, and the second limiting washer 8 and the first limiting washer 7 provide double buffering and shock absorption effect, further reduce impact and wear, significantly prolong the service life of the limiting mechanism, and reduce noise. Furthermore, through flexible configuration of the washer, the adaptability of assembly can be improved, allowing for certain dimensional tolerance of parts, reducing the requirement for machining precision, and simplifying the assembly process.
[0051] In one embodiment, specifically, the embodiment further comprises a lower bearing pressing plate 9 fixedly connected with the shaft sleeve 102; the lower bearing pressing plate 9 abuts against the outer ring of the lower bearing 4 away from the end face of the pulley 1 to limit the axial position of the lower bearing 4 on the pivot shaft 101. The lower bearing pressing plate 9 applies axial pressure to the lower bearing 4 through its own fixing mode, such as screw fixing, to prevent the lower bearing 4 from axially moving on the pivot shaft 101, ensure the stable operation of the bearing, and improve the stability and reliability of the shaft sleeve assembly. It can be understood that, due to the arrangement of the lower bearing pressing plate 9, the embodiment effectively limits the axial displacement of the lower bearing 4 on the pivot shaft 101, prevents the bearing from moving when bearing load or vibration, ensures that the bearing is always in the correct working position, and the axial fixation of the bearing improves the structural stability of the entire shaft sleeve assembly, reduces the possibility of shaking and deformation, especially when used on the side of the stage lamp, can better withstand the bending moment, improve the strength and life of the lamp, and further, the stable axial position of the bearing reduces the abnormal wear of the bearing, prolongs the service life of the bearing, and reduces the maintenance cost.
[0052] In one embodiment, the shaft sleeve structure of the embodiment further comprises an oil seal 10 fixedly closed on the lower bearing pressing plate 9 away from the lower bearing 4. The main function of the oil seal 10 is sealing, which seals the port of the lower bearing pressing plate 9. The sealing effect of the oil seal 10 effectively prevents external dust, impurities, moisture and other pollutants from entering the bearing interior, avoids the abrasion and corrosion of the pollutants to the bearing, prolongs the service life of the bearing, and prevents the leakage of lubricating oil in the bearing interior, maintains the good lubrication state of the bearing, reduces friction and wear, improves the running efficiency and life of the bearing. Through dustproof, dirtproof and lubricating oil leakage prevention, the oil seal 10 significantly improves the reliability and service life of the bearing, reduces the maintenance frequency and cost, and ensures the long-term stable operation of the stage lamp.
[0053] In one embodiment, further, the wheel 1 is provided with a rotation-stopping key groove 13, and a flat key 14 connected to the pivot shaft 101 is fitted into the rotation-stopping key groove 13, and the wheel 1 is fixedly connected to the pivot shaft 101 through the rotation-stopping key groove 13 and the flat key 14, so that the motion states of the two are consistent. That is, the power transmission from the wheel 1 to the pivot shaft 101 is achieved through the rotation-stopping key groove 13 and the flat key 14, and when the wheel 1 rotates, the rotation-stopping key groove 13 drives the pivot shaft 101 to rotate through the flat key 14, achieving power transmission. It can be understood that the flat key connection of the present embodiment is a mature and reliable mechanical transmission mode, which can effectively transmit the rotary power of the wheel 1 to the pivot shaft 101, ensure the efficiency and reliability of power transmission, prevent loss during power transmission, and the cooperation of the flat key 14 in the rotation-stopping key groove 13 and the key groove of the pivot shaft 101 achieves the rigid connection between the wheel 1 and the pivot shaft 101, prevents relative sliding between the two, ensures that the rotary motion of the wheel 1 can be accurately transmitted to the pivot shaft 101, achieves accurate rotation control of the stage lamp head, and the flat key connection structure is simple and reliable, easy to process and assemble, reduces manufacturing cost, and simplifies assembly process.
[0054] In one embodiment, optionally, a bearing seat 15 is fixedly arranged in the support arm 100; the bearing seat 15 is provided with a seat body for mounting with the support arm 100 and a sleeve for sleeving the upper bearing 3; the outer ring of the upper bearing 3 is fitted and sleeved in the bearing seat 15 and abuts against the inner side wall thereof. It can be understood that the bearing seat 15 can be a prefabricated precision component, the inner hole size and shape of which can be accurately controlled, so as to ensure the coaxiality and fitting accuracy of the upper bearing 3 installation, avoid the precision deviation that may be caused by directly machining the bearing mounting hole on the support arm 100, and the bearing seat 15 can provide more solid support for the upper bearing 3, reduce the influence of material deformation or machining error of the support arm 100 on the stability of the upper bearing 3, especially when the stage lamp is used in a side-hanging manner, effectively resist external load, and ensure the stability of rotation, and the bearing seat 15 can be pre-assembled with the upper bearing 3 to form a standardized assembly, and then the assembly is fixed to the support arm 100, simplifying the on-site assembly steps, improving the production efficiency, and when the upper bearing 3 needs to be replaced, the bearing seat 15 can be conveniently disassembled together with the upper bearing 3, without the need to directly disassemble the structure on the support arm 100, reducing the maintenance difficulty and time cost.
[0055] In one embodiment, optionally, in order to further reduce the axial size of the shaft sleeve assembly, realize a more compact design, thereby reducing the overall height of the stage lamp, the end of the pulley 1 away from the limiting structure is provided with an annular avoiding groove 22, and the bearing seat 15 is embedded into the annular avoiding groove 22. It can be understood that by embedding the bearing seat 15 into the annular avoiding groove 22 of the pulley 1, the space occupied by the bearing seat 15 in the axial direction overlaps with part of the space of the pulley 1, effectively reducing the overall axial length of the shaft sleeve assembly, realizing a more compact structure design. This embedded design integrates the originally independent bearing seat 15 and pulley 1 in space, improves the integration between components, and the axial size can be further shortened, so that the pivot point between the support arm 100 and the bottom case is closer, reducing the length of the force arm, thereby improving the overall stability of the structure to some extent, especially when the stage lamp is used on the side, the bending moment of the central shaft and the base can be reduced.
[0056] In one embodiment, optionally, the embodiment also includes an upper bearing pressing plate 16, which is fixedly abuts against the upper end face of the upper bearing 3 to fix and limit the axial position of the upper bearing 3 on the pivot shaft 101 through the upper bearing pressing plate 16, so that the upper bearing pressing plate 16 forms an axial limiting fit with the upper bearing 3. Through the abutment and fixation of the upper bearing pressing plate 16, the movement of the upper bearing 3 in the axial direction of the pivot shaft 101 can be effectively limited, preventing the bearing from axial displacement. During the operation of the stage lamp, the upper bearing pressing plate 16 always maintains the abutting state with the upper bearing 3, which can effectively prevent the upper bearing 3 from axial displacement even when subjected to external impact or vibration, ensuring the stable operation of the shaft sleeve assembly. It can be understood that the upper bearing pressing plate 16 provides a reliable axial constraint for the upper bearing 3, preventing it from axial displacement due to factors such as vibration, impact or axial force during operation, ensuring the normal working state of the bearing. The fixation of the axial position of the upper bearing 3 helps to maintain the structural stability of the entire shaft sleeve assembly, reduces vibration and noise caused by axial displacement of the bearing, and improves the smooth operation of the stage lamp. Axial displacement is one of the common causes of early failure of bearings, so through the axial fixation of the upper bearing pressing plate 16, axial displacement of the bearing can be effectively avoided, non-normal wear can be reduced, thereby prolonging the service life of the upper bearing 3. In addition, the upper bearing pressing plate 16 can also be used to adjust and maintain the pre-tightening force of the upper bearing 3, ensuring that the bearing operates in the best working state.
[0057] In one embodiment, optionally, a center shaft tension plate 17 sleeved on the pivot shaft 101 is further arranged between the upper bearing pressing plate 16 and the upper bearing 3 to resist the bearing and prevent the bearing from loosening, that is, the center shaft tension plate 17 is sleeved on the pivot shaft 101 between the upper bearing pressing plate 16 and the upper bearing 3. The center shaft tension plate 17 cooperates with the upper bearing pressing plate 16 and the upper bearing 3 to further enhance the axial fixing effect of the upper bearing 3 and possibly play a pre-tightening or buffering role. The center shaft tension plate 17 remains relatively stationary with the upper bearing pressing plate 16 and the upper bearing 3 during operation and cooperates to limit the axial displacement of the upper bearing 3. It can be understood that the addition of the center shaft tension plate 17 forms a double axial limiting structure on the basis of the original upper bearing pressing plate 16, further improving the reliability of the axial fixation of the upper bearing 3, effectively preventing the axial movement of the bearing even under more severe working conditions, and accurately controlling the axial pressure of the upper bearing pressing plate 16 on the upper bearing 3 by adjusting the thickness or structure of the center shaft tension plate 17, thereby achieving accurate adjustment of the pre-tightening force of the upper bearing 3 and making the bearing work in the best pre-tightening state, improving the rotation precision and service life.
[0058] In one embodiment, further, the inside of the support arm 100 is provided with a wire passing plate 18 located at one end of the pivot shaft 101 close to the upper bearing 3. The wire passing plate 18 is mainly responsible for guiding and protecting the electric wire entering the support arm 100 from the lamp holder and making it pass through the rotating area of the shaft sleeve assembly safely, providing a safe and reliable wiring channel for the electric wire of the stage lamp and avoiding interference or wear of the electric wire with moving parts during rotation. During the operation of the stage lamp, the wire passing plate 18, as a fixed part, remains relatively stationary with the support arm 100. The electric wire, guided and protected by the wire passing plate 18, can safely rotate with the lamp holder and the support arm 100 without being affected by the rotation of the pivot shaft 101, thus avoiding damage to the electric wire during the rotation of the shaft sleeve assembly and ensuring the electrical performance and safety and reliability of the stage lamp.
[0059] In one embodiment, further, the pivot shaft 101 is fixedly connected to the bottom case, the shaft sleeve 102 is correspondingly fixedly connected to the support arm 100, the bottom case is provided with a base 19 for mounting the pivot shaft 101, and the end of the pivot shaft 101 away from the support arm 100 is fixedly connected to the base 19. The base 19 serves as a connecting component between the shaft sleeve assembly and the bottom case, bears the function of fixing and supporting the pivot shaft 101, and transmits the weight of the lamp head and the support arm 100 to the bottom case. In the working process of the stage lamp, the base 19 is fixed on the bottom case and remains stationary, the shaft sleeve 102 is pivoted to the pivot shaft 101 through the bearing structure of the shaft sleeve assembly and can rotate relative to the base 19, so as to realize the rotation of the lamp head. The existence of the base 19 ensures the stable connection between the pivot shaft 101 and the bottom case. It can be understood that the base 19 can firmly fix the pivot shaft 101 and the shaft sleeve 102 on the bottom case to form a stable overall structure, avoid loosening or falling off of the shaft sleeve assembly in the working process, effectively support the pivot shaft 101, and bear the weight from the lamp head and the support arm 100 to uniformly transmit the load to the bottom case, thereby ensuring the carrying capacity and stability of the entire stage lamp structure. Furthermore, the design of the base 19 can facilitate the assembly and disassembly of the shaft sleeve assembly and the bottom case, simplify the assembly process, and facilitate subsequent maintenance and replacement operations.
[0060] In one embodiment, further, a central counterbore 20 is formed in the base 19, and a flange plate 21 is arranged at the end of the pivot shaft 101 away from the support arm 100. The flange plate 21 is fitted into the central counterbore 20 and fixedly connected to the base 19. That is, the central counterbore 20 is formed in the base 19, and the flange plate 21 is arranged at the end of the pivot shaft 101 away from the support arm 100. During installation, the flange plate 21 is embedded into the central counterbore 20 and fixedly connected to the base 19 by screw connection. In the working process of the stage lamp, the flange plate 21 is embedded into the central counterbore 20 and fixedly connected to the base 19, ensuring the stable and reliable connection between the pivot shaft 101 and the base 19. It can be understood that the cooperation of the central counterbore 20 and the flange plate 21 can realize accurate positioning, ensure the accurate installation position of the pivot shaft 101 on the base 19, and avoid unstable operation or vibration of the shaft sleeve assembly due to installation deviation. Since the contact area between the flange plate 21 and the base 19 is increased and the stress at the connection can be effectively dispersed through the cooperation of the central counterbore 20, the strength and rigidity of the connection are improved, and the carrying capacity and anti-deformation capacity of the shaft sleeve assembly are enhanced. In addition, the structure in which the flange plate 21 is embedded into the central counterbore 20 can effectively prevent the pivot shaft 101 from rotating or displacing on the base 19, improve the stability of the connection, and ensure the long-term reliable operation of the shaft sleeve assembly.
[0061] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A stage lamp with high integration of a shaft sleeve assembly, comprising a lamp head, a support arm (100) and a bottom case, at least one side of the lamp head is pivotally connected to the support arm (100), the support arm (100) is pivotally connected to the bottom case, the support arm (100) and the bottom case are pivotally connected through a pivot shaft (101) and a shaft sleeve (102), a bearing assembly is arranged between the pivot shaft (101) and the shaft sleeve (102), the pivot shaft (101) is selectively fixed on one of the support arm (100) and the bottom case, and the shaft sleeve (102) is correspondingly arranged on the other one, characterized in that, The transmission assembly for relatively rotating the support arm (100) with the bottom case and the limiting structure for limiting the rotation angle range between the pivot shaft (101) and the shaft sleeve (102) are also included, the transmission assembly includes a belt pulley (1) fixedly sleeved on the pivot shaft (101); the inside of the belt pulley (1) is formed with an annular hollow groove (2), and the limiting structure is embedded in the annular hollow groove (2).
2. The high integration stage lamp with the shaft sleeve assembly according to claim 1, characterized in that, The limiting structure includes: A limiting tab (5) is accommodated in the inside of the annular hollow groove (2) and movably sleeved on the pivot shaft (101); The surface of the annular hollow groove (2) is protruded towards the limiting tab (5) to form a limiting protrusion (6); During the relative rotation between the belt pulley (1) and the limiting tab (5), the limiting protrusion (6) abuts against the outer peripheral flange of the limiting tab (5) at least at one position.
3. The high integrated stage light of the shaft sleeve assembly according to claim 2, wherein, A limiting screw (11) fixedly connected with the shaft sleeve (102) and keeping consistent with the rotation angle of the shaft sleeve (102) is also included, during the relative rotation between the belt pulley (1) and the limiting tab (5), the limiting screw (11) can freely pass through the limiting protrusion (6), and the limiting screw (11) abuts against the outer peripheral flange of the limiting tab (5) at least at one position to rotate the outer peripheral flange of the limiting tab (5) around the pivot shaft (101), so that the outer peripheral flange of the limiting tab (5) interferes with the limiting protrusion (6) at another position to limit the rotation angle between the shaft sleeve and the pivot shaft (101).
4. The high integrated stage light of the shaft sleeve assembly according to claim 2 or 3, characterized in that, A first limiting gasket (7) is arranged between the limiting tab (5) and the groove bottom surface of the annular hollow groove (2).
5. The high integrated stage light of the shaft sleeve assembly according to claim 1, wherein, The bearing assembly includes an upper bearing (3) and a lower bearing (4) simultaneously clamped on the pivot shaft (101), and the belt pulley (1) is located between the upper bearing (3) and the lower bearing (4) along the axial direction of the pivot shaft (101).
6. The high integrated stage light of the shaft sleeve assembly according to claim 5, wherein, The inner rings of the upper bearing (3) and the lower bearing (4) respectively abut against the opposite two end faces of the belt pulley (1); The outer rings of the upper bearing (3) and the lower bearing (4) respectively abut against the shaft sleeve (102); A lower bearing pressing plate (9) fixedly connected with the shaft sleeve (102) is also included; The lower bearing pressing plate (9) abuts against the outer ring of the lower bearing (4) away from the end face of the belt pulley (1) to limit the axial position of the lower bearing (4) on the pivot shaft (101).
7. The high integrated stage light of the shaft sleeve assembly according to claim 6, wherein, An oil seal (10) for sealing the gap between the lower bearing pressing plate (9) and the pivot shaft (101) is also included.
8. The high integrated stage light of the shaft sleeve assembly according to claim 5, wherein, A bearing seat (15) is fixedly arranged in the support arm (100); the bearing seat (15) is provided with a seat body for mounting with the support arm (100) and a sleeve for sleeving the upper bearing (3); the outer ring of the upper bearing (3) is fittedly sleeved in the bearing seat (15) and abuts against the inner side wall thereof.
9. The high integrated stage light of the shaft sleeve assembly according to claim 8, wherein, An annular avoiding groove (22) is arranged on the end face of the belt pulley (1) away from the limiting structure, and the bearing seat (15) is embedded into the annular avoiding groove (22).
10. The high-integrated stage light with the shaft sleeve assembly according to claim 1, characterized in that, Also include the motor that provides driving force, and the belt that driving force is transmitted to the pulley (1), the belt is set up in the pulley (1) with the driving shaft of the motor simultaneously;The pivot shaft (101) is fixedly connected to the bottom case and extends into the cavity of the support arm (100), the shaft sleeve (102) is correspondingly fixedly connected to the support arm (100), the motor is located in the cavity of the support arm (100) and is fixedly connected thereto, so that the motor drives the support arm (100) to rotate around the bottom case.
11. The high-integrated stage light of the shaft sleeve assembly according to claim 1, wherein, The pivot shaft (101) is fixedly connected to the bottom case, the shaft sleeve (102) is correspondingly fixedly connected to the support arm (100), the bottom case is provided with a base (19) for mounting the pivot shaft (101);The end of the pivot shaft (101) away from the support arm (100) is fixedly connected to the base (19).