Stage lamp arm structure

Abstract

The utility model relates to a stage lamp arm structure which comprises an arm shell. A mounting space is formed in the arm shell; the arm shell comprises a base connecting part connected with the base and an extending part connected with the lamp holder; a transmission belt is arranged in the mounting space; a tensioning assembly is arranged on the outer side of the conveying belt. The base connecting part is provided with a belt tightness adjusting hole matched with the tensioning assembly to adjust the position of the tensioning assembly. By adjusting the position of the tensioning assembly, the problem that steps are lost or the rotating angle of the lamp holder assembly cannot be controlled due to the fact that the conveying belt is too loose can be solved, and the using effect of the stage lamp is improved. The belt tightness adjusting hole matched with the tensioning assembly is formed in the base connecting part, so that the position of the tensioning assembly is not fixed any more. Compared with a driving mechanism which is partially provided with a tensioning wheel at a fixed position, the tightness degree of the conveying belt can be adjusted more flexibly, and the accurate requirement for the tightness degree of the belt under different working conditions can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lamps and lanterns especially, a stage lamp arm part structure. BACKGROUND

[0002] In prior art, to achieve the goal of more accurate adjustment of the rotating angle of the lamp head assembly, the mode of synchronous belt and gear teeth mutual cooperation is generally used. Taking the structure disclosed by the Chinese utility model patent with the patent publication number CN206398659U as an example, the structure has obvious defects, it is not provided with a tension pulley, so that the tightness of the transmission belt (synchronous belt) cannot be adjusted. When the transmission belt is too loose, in the process of belt operation driven by the motor, the step loss phenomenon is prone to occur, and even the rotation angle of the lamp head assembly cannot be effectively controlled, which seriously affects the normal use effect of the stage lamp. If the transmission belt is too tight, new problems will be caused, not only the noise is easy to produce, the overall atmosphere of the stage performance is interfered, but also the belt bears excessive tension, the risk of belt breakage is greatly increased, once the belt is broken, the stage lamp will directly stop working, which brings great trouble to the performance.

[0003] In addition, although the driving mechanism with the tension pulley can control the tightness of the transmission belt to a certain extent, the position of the tension pulley is fixed, which greatly limits the adjustable range and flexibility when actually adjusting the tightness of the transmission belt, and it is difficult to meet the accurate requirement of the tightness of the belt under different working conditions.

[0004] Furthermore, the belt tightness adjusting device in prior art generally has the problem of inconvenient operation. When adjusting the tightness of the belt, the arm part shell needs to be disassembled to implement the adjustment operation. The disassembly and assembly process is complex, not only a lot of time and manpower are needed, but also the arm part shell and other internal parts are easy to be damaged in the repeated disassembly and assembly process, which further reduces the stability and reliability of the stage lamp, increases the maintenance cost and maintenance difficulty. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems of prior art, the utility model provides a stage lamp arm part structure.

[0006] In order to achieve the above purpose, the utility model adopts the main technical scheme of:

[0007] A stage lamp arm part structure, characterized by: comprising an arm part shell; an installation space is formed in the inside of the arm part shell; the arm part shell comprises a base connecting part connected with the base and an extension part connected with the lamp head; a transmission belt is arranged in the installation space; a tensioning assembly is arranged on the outside of the transmission belt; a belt tightness adjusting hole for adjusting the position of the tensioning assembly is arranged on the base connecting part and matched with the tensioning assembly.

[0008] Further, the tensioning assembly comprises a mounting plate; the mounting plate is provided with a tensioning wheel; the tensioning wheel cooperates with the transmission belt; the middle part of the mounting plate is provided with a long slot; the position of the mounting plate is limited by a compression screw in the long slot; the end of the mounting plate away from the tensioning wheel is provided with a connecting plate arranged opposite to the belt tightness adjusting hole.

[0009] Further, the compression screw is fixedly arranged on the arm shell or the base.

[0010] Further, the base connecting part is provided with a driving wheel and a first driven wheel cooperating with the transmission belt; the driving wheel is connected with a driving motor arranged in the base; the distance between the driving wheel and the first driven wheel in the first direction is greater than or equal to the size of the extension part in the first direction; the first direction is the width direction of the extension part.

[0011] Further, the extension part is provided with a second driven wheel cooperating with the transmission belt; the second driven wheel is connected with the lamp head.

[0012] Further, the length direction of the belt tightness adjusting hole is parallel to the first direction.

[0013] Further, the arm shell is provided with a mounting hole; a quick lock piece is fixedly arranged in the mounting hole; the quick lock piece is located between the two opposite sides of the transmission belt.

[0014] Further, the quick lock piece is connected with a quick mounting bracket.

[0015] Further, the connecting plate is provided with a threaded hole.

[0016] The beneficial effects of the utility model are: by adjusting the position of the tensioning assembly, the problem of step loss or inability to control the rotation angle of the lamp head assembly caused by the transmission belt being too loose can be avoided, so that the normal and stable operation of the stage lamp is ensured, and the use effect of the stage lamp is improved. The belt tightness adjusting hole cooperating with the tensioning assembly is arranged on the base connecting part, so that the position of the tensioning assembly is no longer fixed. Compared with the driving mechanism provided with the fixed-position tensioning wheel, the tightness of the transmission belt can be more flexibly adjusted, the accurate requirement for the tightness of the belt under different working conditions can be met, and the adaptability of the stage lamp under different working environments is greatly improved. The tightness of the belt is adjusted by the cooperation of the belt tightness adjusting hole and the tensioning assembly, and the arm shell does not need to be disassembled. This greatly simplifies the adjustment operation process, saves a lot of time and labor cost. At the same time, the risk of damage to the arm shell and other internal parts caused by repeated disassembly and assembly is avoided, the stability and reliability of the stage lamp are improved, and the maintenance cost and difficulty are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained from these drawings.

[0018] Figure 1 is the structural explosion diagram of the present application;

[0019] Figure 2 is the front view of the present application;

[0020] Figure 3 is the A-A sectional view of the present application;

[0021] Figure 4 is the present application Figure 3 B part enlarged view;

[0022] Marked:

[0023] 100, arm shell; 101, belt tightness adjusting hole; 102, mounting hole; 103, quick lock; 104, quick mounting bracket; 110, base connecting part; 120, extension part; 130, transmission belt; 131, driving wheel; 132, driving motor; 133, first driven wheel; 134, second driven wheel; 140, tensioning assembly; 141, mounting plate; 142, tensioning wheel; 143, long slot; 144, compression screw; 145, connecting plate; 200, base; 300, lamp holder. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate with a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the term "installation", "provided with", "connection" and so on, should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Embodiment, please refer to Figure 1 As shown in the figure:

[0028] A stage lamp arm structure, comprising an arm shell 100;The inside of the arm shell 100 is formed with a mounting space;The arm shell 100 includes a base connecting part 110 connected with the base 200 and an extension part 120 connected with the lamp head 300;The transmission belt 130 is arranged in the mounting space;The outer side of the transmission belt 130 is provided with a tensioning assembly 140;The base connecting part 110 is provided with a belt tightness adjusting hole 101 matched with the tensioning assembly 140 to adjust the position of the tensioning assembly 140. By adjusting the position of the tensioning assembly 140, the problem of losing step or being unable to control the rotation angle of the lamp head 300 component caused by the transmission belt 130 being too loose can be avoided, so as to ensure the normal and stable operation of the stage lamp and improve the use effect of the stage lamp. The belt tightness adjusting hole 101 matched with the tensioning assembly 140 is arranged on the base connecting part 110, which makes the position of the tensioning assembly 140 no longer fixed. Compared with the drive mechanism provided with the fixed position tensioning wheel 142, it can more flexibly adjust the tightness of the transmission belt 130, can meet the accurate requirement of the belt tightness under different working conditions, and greatly improves the adaptability of the stage lamp under different working conditions. The tightness of the belt is adjusted through the cooperation of the belt tightness adjusting hole 101 and the tensioning assembly 140, without disassembling the arm shell. This greatly simplifies the adjustment operation process, saves a lot of time and labor cost. At the same time, the risk of damaging the arm shell and other internal parts caused by repeated disassembly and assembly is avoided, the stability and reliability of the stage lamp are improved, and the maintenance cost and difficulty are reduced.

[0029] like Figure 4 As shown, in one embodiment, the tensioning assembly 140 includes a mounting plate 141; a tensioning wheel 142 is provided on the mounting plate 141; the tensioning wheel 142 cooperates with the transmission belt 130; an elongated groove 143 is provided in the middle of the mounting plate 141; a clamping screw 144 is used to limit the position of the mounting plate 141 in the elongated groove 143; a connecting plate 145 is provided at the end of the mounting plate 141 away from the tensioning wheel 142, which is opposite to the belt tension adjustment hole 101. The tensioning wheel 142 in the tensioning assembly 140 cooperates with the transmission belt 130. When it is necessary to adjust the belt tension, the belt tension can be changed by adjusting the position of the tensioning wheel 142. The clamping screw 144 fixes the mounting plate 141 by pressing against it, thereby fixing the position of the tension wheel 142. When the position of the tension wheel 142 needs to be adjusted, a greater force is applied to the connecting plate 145 through the belt tension adjustment hole 101, which can push the mounting plate 141 to move and adjust the position of the tension wheel 142. One preferred solution is to apply pressure with an external tool to press the connecting plate 145 inward, thereby tensioning the transmission belt 130. Since the transmission belt 130 usually gradually lengthens with the increase of usage time, the main adjustment method is to push the connecting plate 145 inward. It is also feasible to move the connecting plate 145 outward. In one embodiment, the connecting plate 145 is provided with a threaded hole. A screw can be used to pass through the belt tension adjustment hole 101 and engage with the threaded hole. Using the principle of screw drive, the connecting plate 145 can be moved outward.

[0030] In one embodiment, the clamping screw 144 is fixedly mounted on the arm housing 100 or the base 200. This not only enhances the stability of the connection between the entire tensioning assembly 140 and the arm structure, but also makes the fit between the various components tighter.

[0031] like Figures 2-3 As shown, in one embodiment, the base connecting portion 110 is provided with a drive wheel 131 and a first driven wheel 133 that cooperate with the transmission belt 130; the drive wheel 131 is connected to a drive motor 132 provided in the base 200; the distance between the drive wheel 131 and the first driven wheel 133 in a first direction is greater than or equal to the dimension of the extension portion 120 in the first direction; the first direction is the width direction of the extension portion 120. By setting this distance, the belt can be effectively spread out, so that a larger space is reserved between the two opposite sides of the belt, which provides convenience for the installation of the quick-locking component 103 and can also effectively avoid interference between internal components.

[0032] In an embodiment, the extension 120 is provided with a second driven wheel 134 matched with the transmission belt 130; the second driven wheel 134 is connected with the lamp holder 300; through the connection between the second driven wheel 134 and the lamp holder 300, the rotation angle of the lamp holder 300 can be adjusted when the transmission belt 130 rotates.

[0033] In an embodiment, the length direction of the belt tightness adjusting hole 101 is parallel to the first direction; in this way, the belt tightness adjusting hole 101 can be more concealed, and the adjustment of the tensioning assembly 140 by non-professionals can be avoided.

[0034] In an embodiment, the arm part shell 100 is provided with a mounting hole 102; the mounting hole 102 is fixedly provided with a quick lock piece 103; the quick lock piece 103 is located between the opposite sides of the transmission belt 130; the quick lock piece 103 is connected with a quick mounting support 104; through the arrangement of the quick mounting support 104 on the arm part shell 100, the hanging position of the lamp can be effectively increased, and the adaptability of the lamp can be increased.

[0035] The above-mentioned is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation, direct or indirect application in the related technical field by using the content of the present application specification and drawings is also included in the patent protection range of the present application.

Claims

1. A stage light arm section structure, characterized by: The application relates to an arm part shell (100); an installation space is formed in the arm part shell (100); the arm part shell (100) comprises a base connecting part (110) connected with a base (200) and an extension part (120) connected with a lamp holder (300); a transmission belt (130) is arranged in the installation space; a tensioning assembly (140) is arranged on the outer side of the transmission belt (130); a belt tightness adjusting hole (101) for adjusting the position of the tensioning assembly (140) is arranged on the base connecting part (110) and matched with the tensioning assembly (140).

2. A stage light arm structure according to claim 1, characterized in that: The tensioning assembly (140) comprises an installation plate (141); a tensioning wheel (142) is arranged on the installation plate (141); the tensioning wheel (142) is matched with the transmission belt (130); a long groove (143) is arranged in the middle of the installation plate (141); the position of the installation plate (141) is limited by a pressing screw (144) in the long groove (143); a connecting plate (145) is arranged on the end of the installation plate (141) away from the tensioning wheel (142) and matched with the belt tightness adjusting hole (101).

3. A stage light arm structure according to claim 2, characterized in that: The pressing screw (144) is fixedly arranged on the arm part shell (100) or the base (200).

4. A stage light arm structure according to claim 2, characterized in that: The base connecting part (110) is provided with a driving wheel (131) matched with the transmission belt (130) and a first driven wheel (133); the driving wheel (131) is connected with a driving motor (132) arranged in the base (200); the distance between the driving wheel (131) and the first driven wheel (133) in a first direction is greater than or equal to the size of the extension part (120) in the first direction; the first direction is the width direction of the extension part (120).

5. A stage light arm structure according to claim 4, wherein: The extension part (120) is provided with a second driven wheel (134) matched with the transmission belt (130); the second driven wheel (134) is connected with the lamp holder (300).

6. A stage light arm structure according to claim 4, characterized in that: The length direction of the belt tightness adjusting hole (101) is parallel to the first direction.

7. A stage light arm structure according to claim 4, characterized in that: The arm part shell (100) is provided with an installation hole (102); a quick locking piece (103) is fixedly arranged in the installation hole (102); the quick locking piece (103) is located between the two opposite sides of the transmission belt (130).

8. A stage light arm structure according to claim 7, characterized in that: The quick locking piece (103) is connected with a quick mounting support (104).

9. A stage light arm structure according to claim 2, characterized in that: The connecting plate (145) is provided with a threaded hole.

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