A stage lighting lens transmission mechanism

Abstract

The present invention provides a stage light optical lens transmission mechanism, comprising a supporting side plate, a first optical lens group, a second optical lens group, a third optical lens group, a first slide bar, a second slide bar, a first transmission assembly and a second transmission assembly; the first transmission assembly and the second transmission assembly are mounted on the supporting side plate, the first transmission assembly is connected to the second fixed plate, and drives the second optical lens group to slide on the first slide bar and the second slide bar; the second transmission assembly is connected to the third fixed plate, and drives the third optical lens group to slide on the first slide bar and the second slide bar. The present invention ensures the stability of the optical lens during translation, and it is not easy to produce a situation where one side moves faster than the other side, thereby avoiding translation hysteresis or tilt. At the same time, the various parts of the transmission assembly are distributed on the front and back of the supporting side plate, and the spatial distribution is reasonable and compact, saving the internal space of the stage light.

Description

Technical Field

[0001] The invention relates to the field of stage lights, and in particular to an optical lens transmission mechanism for stage lights. Background Art

[0002] Optical lenses are an important part of stage lights. Various lighting effects created by stage lights require the focal length adjustment of multiple sets of optical lenses to achieve.

[0003] However, in the existing stage lights, the transmission mechanism design of the optical lens still has many defects, resulting in inconsistent left and right travels of the lens during translation when adjusting the focal length, causing the lens to tilt or translate unsmoothly during translation, which needs further improvement and perfection. Summary of the invention

[0004] The object of the present invention is to provide a stage light optical lens transmission mechanism to address the defects in the prior art, which has stable transmission and good synchronization and can meet the requirements of synchronous and smooth translation of both sides of the optical lens.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A stage light optical lens transmission mechanism comprises a supporting side plate, a first optical lens group, a second optical lens group, a third optical lens group, a first sliding rod, a second sliding rod, a first transmission assembly and a second transmission assembly;

[0007] The first sliding rod, the second sliding rod and the supporting side plate are arranged in parallel, one end of the first sliding rod and the second sliding rod is fixedly connected to one end of the supporting side plate, and the other end of the first sliding rod and the second sliding rod is fixedly connected to the other end of the supporting side plate;

[0008] The first optical lens group is fixed to one end of the supporting side plate through the first fixing plate; the second optical lens group is fixed to the second fixing plate, and the two ends of the second fixing plate are respectively slidably connected to the first sliding rod and the second sliding rod through the sliding sleeve; the third optical lens group is fixed to the third fixing plate, and the two ends of the third fixing plate are respectively slidably connected to the first sliding rod and the second sliding rod through the sliding sleeve; wherein the second optical lens group is located between the first optical lens group and the third optical lens group;

[0009] The first transmission assembly and the second transmission assembly are installed on the supporting side plate. The first transmission assembly is connected to the second fixed plate to drive the second optical lens group to slide on the first sliding rod and the second sliding rod. The second transmission assembly is connected to the third fixed plate to drive the third optical lens group to slide on the first sliding rod and the second sliding rod.

[0010] Furthermore, the first sliding bar, the second sliding bar, the second optical lens group and the third optical lens group are all arranged on the front side of the supporting side plate;

[0011] The first transmission assembly includes a first motor, a first driving wheel, a second driven wheel and a first transmission belt, wherein the first motor is fixed to the back of the supporting side plate, the output shaft of the first motor passes through the supporting side plate, and is fixedly connected to the first driving wheel at the front of the supporting side plate, the first driven wheel is fixed to the front of the supporting side plate, and the first driving wheel and the first driven wheel are connected by the first transmission belt; the second fixing plate is fixedly connected to the first transmission belt via the first connecting plate;

[0012] Wherein, the first driven wheel and the first driving wheel are respectively located near two ends of the first sliding rod.

[0013] Further, the second transmission assembly includes a second motor, a second driving wheel, a second driven wheel and a second transmission belt, the second motor is fixed to the back of the supporting side plate, the output shaft of the second motor passes through the supporting side plate, and is fixedly connected to the second driving wheel at the front of the supporting side plate, the second driven wheel is fixed to the front of the supporting side plate, and the second driving wheel and the second driven wheel are connected by the second transmission belt; the third fixed plate is fixedly connected to the second transmission belt through the second connecting plate;

[0014] The second driving wheel is located near one end of the second sliding rod close to the third optical lens group, and the second driven wheel is located near the middle of the second sliding rod.

[0015] Furthermore, the second transmission assembly further comprises a third driven wheel, a fourth driven wheel, a fifth driven wheel, a third transmission belt and a fourth transmission belt arranged on the back of the supporting side plate; the third driven wheel is coaxially fixedly connected with the second driven wheel, the third driven wheel is transmission-connected with the fourth driven wheel through the third transmission belt, and the fourth driven wheel is also transmission-connected with the fifth driven wheel through the fourth transmission belt; wherein the third transmission belt has a certain angle with the second transmission belt, and the fourth transmission belt is parallel to the second transmission belt;

[0016] The fourth driven wheel and the fifth driven wheel are arranged on the back side of the supporting side plate between the first slide bar and the second slide bar; a slot hole is opened on the supporting side plate corresponding to the fourth transmission belt, and the third fixing plate is fixedly connected to the fourth transmission belt through the third connecting plate at the slot hole.

[0017] Furthermore, the length of the slot is less than or equal to the distance between the fourth driven wheel and the fifth driven wheel.

[0018] Furthermore, the second transmission assembly also includes a tensioning adjustment wheel installed on the back side of the supporting side plate; two parallel limiting grooves are opened on the supporting side plate corresponding to the third transmission belt, and the extension direction of the limiting grooves is perpendicular to the third transmission belt; the tensioning adjustment wheel is fixed in the limiting groove, and the tensioning adjustment wheel is supported on the outside of the third transmission belt to press the third transmission belt inward.

[0019] Furthermore, a first positioning sensor and a second positioning sensor are fixedly installed on the front side of the supporting side plate. The first positioning sensor is arranged near one end close to the first optical lens group, and is used to sense the translation stroke of the second optical lens group; the second positioning sensor is arranged near one end close to the third optical lens group, and is used to sense the translation stroke of the third optical lens group.

[0020] The present invention ensures the stability of the optical lens during translation, and it is not easy to produce a situation where one side moves faster than the other side, thereby avoiding translation hysteresis or tilt. At the same time, the various parts of the transmission assembly are distributed on the front and back of the supporting side plate, and the space distribution is reasonable and compact, saving the internal space of the stage light.

[0021] The present invention also uses a tensioning adjustment wheel to press the third transmission belt inwardly, so that the third transmission belt is tensioned between the third driven wheel and the fourth driven wheel. By adjusting the position of the tensioning adjustment wheel in the limit groove, the tension of the third transmission belt can be adjusted. The arrangement is flexible and convenient, and it is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the overall structure of a stage lighting optical lens transmission mechanism provided by an embodiment of the present invention.

[0023] Figure 2 The figure is a schematic diagram of the back structure of a stage lighting optical lens transmission mechanism provided by an embodiment of the present invention.

[0024] Figure 3 Schematic diagram of the front connection relationship between the third optical lens group and the second transmission assembly in an embodiment of the present invention.

[0025] Figure 4 Schematic diagram of the back connection relationship between the third optical lens group and the second transmission assembly in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 4 As shown, a stage lighting optical lens transmission mechanism provided by the present invention includes a supporting side plate 1, a first optical lens group 11, a second optical lens group 12, a third optical lens group 13, a first sliding rod 91, a second sliding rod 92, a first transmission assembly and a second transmission assembly.

[0028] Specifically, the first slide bar 91, the second slide bar 92 and the supporting side plate 1 are arranged in parallel, one end of the first slide bar 91 and the second slide bar 92 is fixedly connected to one end of the supporting side plate 1, and the other end of the first slide bar 91 and the second slide bar 92 is fixedly connected to the other end of the supporting side plate 1;

[0029] The first optical lens group 11 is fixed to one end of the supporting side plate 1 through the first fixing plate 21; the second optical lens group 12 is fixed to the second fixing plate 22, and the two ends of the second fixing plate 22 are respectively slidably connected to the first sliding rod 91 and the second sliding rod 92 through sliding sleeves; the third optical lens group 13 is fixed to the third fixing plate 23, and the two ends of the third fixing plate 23 are respectively slidably connected to the first sliding rod 91 and the second sliding rod 92 through sliding sleeves; wherein the second optical lens group 12 is located between the first optical lens group 11 and the third optical lens group 13;

[0030] The first transmission assembly and the second transmission assembly are installed on the supporting side plate 1. The first transmission assembly is connected to the second fixed plate 22 to drive the second optical lens group 12 to slide on the first sliding bar 91 and the second sliding bar 92. The second transmission assembly is connected to the third fixed plate 23 to drive the third optical lens group 13 to slide on the first sliding bar 91 and the second sliding bar 92.

[0031] Combination Figure 1 and Figure 2 As shown, the first slide bar 91, the second slide bar 92, the second optical lens group 12 and the third optical lens group 13 are all arranged on the front side of the supporting side plate 1;

[0032] The first transmission assembly includes a first motor 71, a first driving wheel 31, a second driven wheel 42 and a first transmission belt 51. The first motor 71 is fixed to the back side of the supporting side plate 1. The output shaft of the first motor 71 passes through the supporting side plate 1 and is fixedly connected to the first driving wheel 31 at the front side of the supporting side plate 1. The first driven wheel 41 is fixed to the front side of the supporting side plate 1. The first driving wheel 31 and the first driven wheel 41 are connected through the first transmission belt 51. The second fixed plate 22 is fixedly connected to the first transmission belt 51 through the first connecting plate 61. The first driven wheel 41 and the first driving wheel 31 are respectively located near the two ends of the first sliding rod 91.

[0033] Furthermore, the second transmission assembly includes a second motor 72, a second driving wheel 32, a second driven wheel 42 and a second transmission belt 52, the second motor 72 is fixed to the back side of the supporting side plate 1, the output shaft of the second motor 72 passes through the supporting side plate 1, and is fixedly connected to the second driving wheel 32 on the front side of the supporting side plate 1, the second driven wheel 42 is fixed to the front side of the supporting side plate 1, and the second driving wheel 32 and the second driven wheel 42 are connected by the second transmission belt 52; the third fixed plate 23 is fixedly connected to the second transmission belt 52 through the second connecting plate 62; wherein, the second driving wheel 32 is located near one end of the second slide bar 92 close to the third optical lens group 13, and the second driven wheel 42 is located near the middle of the second slide bar 92.

[0034] As an improvement, the second transmission assembly also includes a third driven wheel 43, a fourth driven wheel 44, a fifth driven wheel 45, a third transmission belt 53 and a fourth transmission belt 54 arranged on the back side of the supporting side plate 1; the third driven wheel 43 is coaxially fixedly connected with the second driven wheel 42, the third driven wheel 43 and the fourth driven wheel 44 are transmission connected by the third transmission belt 53, and the fourth driven wheel 44 is also transmission connected with the fifth driven wheel 45 by the fourth transmission belt 54; wherein, the third transmission belt 53 and the second transmission belt 52 have a certain angle, and the fourth transmission belt 54 is parallel to the second transmission belt 52; in this embodiment, the third transmission belt 53 is perpendicular to the second transmission belt 52.

[0035] The fourth driven wheel 44 and the fifth driven wheel 45 are arranged on the back side of the supporting side plate 1 between the first slide bar 91 and the second slide bar 92; a slot hole 60 is opened on the supporting side plate 1 corresponding to the fourth transmission belt 54, and at the slot hole 60, the third fixed plate 23 is fixedly connected to the fourth transmission belt 54 through the third connecting plate 63.

[0036] Preferably, the length of the slot 60 is less than or equal to the distance between the fourth driven wheel 44 and the fifth driven wheel 45 .

[0037] Through the above structure, when the third optical lens group 13 is translated on the first slide bar 91 and the second slide bar 92, the right side of the third fixed plate 23 is driven by the second transmission belt 52, and the middle part of the third fixed plate 23 is driven by the fourth transmission belt 54, and the second transmission belt 52 and the fourth transmission belt 54 are synchronously driven by the second to fourth driven wheels and the third transmission belt 53, thereby ensuring the stability of the third optical lens group 13 during translation, and it is not easy to produce a situation where one side moves faster than the other side, avoiding translation hysteresis or tilt. At the same time, the various parts of the second transmission assembly are distributed on the front and back of the supporting side plate 1, and the spatial distribution is reasonable and compact, saving the internal space of the stage light.

[0038] As an improvement, the second transmission assembly also includes a tensioning adjustment wheel 4 installed on the back side of the supporting side plate 1; two parallel limiting grooves 40 are opened on the supporting side plate 1 corresponding to the third transmission belt 53, and the extension direction of the limiting grooves 40 is perpendicular to the third transmission belt 53; the tensioning adjustment wheel 4 is fixed in the limiting groove 40, and the tensioning adjustment wheel 4 is supported on the outer side of the third transmission belt 53 to press the third transmission belt 53 inward.

[0039] During the transmission process of the second transmission assembly, since the third transmission belt 53 is an intermediate transmission component and is not directly connected to the second motor 72 or the third fixed plate 23, the third transmission belt 53 is easy to loosen. In the embodiment of the present invention, a tensioning adjustment wheel 4 is added to the supporting side plate 1, and the third transmission belt 53 is pressed inward by the tensioning adjustment wheel 4, so that the third transmission belt 53 is tensioned between the third driven wheel 43 and the fourth driven wheel 44. By adjusting the position of the tensioning adjustment wheel 4 in the limiting groove 40, the tension of the third transmission belt 53 can be adjusted. The arrangement is flexible, convenient, and convenient for later maintenance.

[0040] Furthermore, a first positioning sensor 81 and a second positioning sensor 82 are fixedly mounted on the front side of the supporting side plate 1. The first positioning sensor 81 is arranged near one end close to the first optical lens group 11, and is used to sense the translation stroke of the second optical lens group 12; the second positioning sensor 82 is arranged near one end close to the third optical lens group 13, and is used to sense the translation stroke of the third optical lens group 13.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A stage lighting optical lens transmission mechanism, characterized in that: It includes a supporting side plate, a first optical lens group, a second optical lens group, a third optical lens group, a first sliding rod, a second sliding rod, a first transmission assembly and a second transmission assembly; The first sliding rod, the second sliding rod and the supporting side plate are arranged in parallel, one end of the first sliding rod and the second sliding rod is fixedly connected to one end of the supporting side plate, and the other end of the first sliding rod and the second sliding rod is fixedly connected to the other end of the supporting side plate; The first optical lens group is fixed to one end of the supporting side plate through the first fixing plate; the second optical lens group is fixed to the second fixing plate, and the two ends of the second fixing plate are respectively slidably connected to the first sliding rod and the second sliding rod through the sliding sleeve; the third optical lens group is fixed to the third fixing plate, and the two ends of the third fixing plate are respectively slidably connected to the first sliding rod and the second sliding rod through the sliding sleeve; wherein the second optical lens group is located between the first optical lens group and the third optical lens group; The first transmission assembly and the second transmission assembly are installed on the supporting side plate, the first transmission assembly is connected to the second fixed plate, and drives the second optical lens group to slide on the first sliding rod and the second sliding rod; the second transmission assembly is connected to the third fixed plate, and drives the third optical lens group to slide on the first sliding rod and the second sliding rod; The first sliding bar, the second sliding bar, the second optical lens group and the third optical lens group are all arranged on the front side of the supporting side plate; The first transmission assembly includes a first motor, a first driving wheel, a second driven wheel and a first transmission belt, wherein the first motor is fixed to the back of the supporting side plate, the output shaft of the first motor passes through the supporting side plate, and is fixedly connected to the first driving wheel at the front of the supporting side plate, the first driven wheel is fixed to the front of the supporting side plate, and the first driving wheel and the first driven wheel are connected by the first transmission belt; the second fixing plate is fixedly connected to the first transmission belt via the first connecting plate; Wherein, the first driven wheel and the first driving wheel are respectively located near two ends of the first sliding rod; The second transmission assembly includes a second motor, a second driving wheel, a second driven wheel and a second transmission belt, the second motor is fixed to the back of the supporting side plate, the output shaft of the second motor passes through the supporting side plate, and is fixedly connected to the second driving wheel at the front of the supporting side plate, the second driven wheel is fixed to the front of the supporting side plate, and the second driving wheel and the second driven wheel are connected by the second transmission belt; the third fixed plate is fixedly connected to the second transmission belt through the second connecting plate; The second driving wheel is located near one end of the second slide bar close to the third optical lens group, and the second driven wheel is located near the middle of the second slide bar; The second transmission assembly further comprises a third driven wheel, a fourth driven wheel, a fifth driven wheel, a third transmission belt and a fourth transmission belt arranged on the back of the supporting side plate; the third driven wheel is coaxially fixedly connected with the second driven wheel, the third driven wheel is transmission-connected with the fourth driven wheel through the third transmission belt, and the fourth driven wheel is also transmission-connected with the fifth driven wheel through the fourth transmission belt; wherein the third transmission belt has an angle with the second transmission belt, and the fourth transmission belt is parallel to the second transmission belt; The fourth driven wheel and the fifth driven wheel are arranged on the back side of the supporting side plate between the first slide bar and the second slide bar; a slot hole is opened on the supporting side plate corresponding to the fourth transmission belt, and the third fixing plate is fixedly connected to the fourth transmission belt through the third connecting plate at the slot hole.

2. The stage lighting optical lens transmission mechanism according to claim 1, characterized in that: The length of the slot is less than or equal to the distance between the fourth driven wheel and the fifth driven wheel.

3. The stage lighting optical lens transmission mechanism according to claim 1, characterized in that: The second transmission assembly also includes a tensioning adjustment wheel installed on the back of the supporting side plate; two parallel limiting grooves are opened on the supporting side plate corresponding to the third transmission belt, and the extension direction of the limiting grooves is perpendicular to the third transmission belt; the tensioning adjustment wheel is fixed in the limiting groove, and the tensioning adjustment wheel is supported on the outer side of the third transmission belt to press the third transmission belt inward.

4. The stage lighting optical lens transmission mechanism according to claim 1, characterized in that: The front side of the supporting side plate is also fixedly mounted with a first positioning sensor and a second positioning sensor. The first positioning sensor is arranged near one end close to the first optical lens group, and is used to sense the translational stroke of the second optical lens group; the second positioning sensor is arranged near one end close to the third optical lens group, and is used to sense the translational stroke of the third optical lens group.

Images