阅读说明：本技术 一种舞台灯光学镜头传动机构 (Stage lamp optical lens drive mechanism ) 是由 闫占清 李利平 陈亮 于 2019-10-28 设计创作，主要内容包括：本发明提供了一种舞台灯光学镜头传动机构,包括支撑侧板、第一光学镜头组、第二光学镜头组、第三光学镜头组、第一滑杆、第二滑杆、第一传动组件和第二传动组件；所述第一传动组件和第二传动组件安装于支撑侧板上,第一传动组件与第二固定板连接,驱动第二光学镜头组在第一滑杆和第二滑杆上滑动；第二传动组件与第三固定板连接,驱动第三光学镜头组在第一滑杆和第二滑杆上滑动。本发明保证了光学镜头在平移时的稳定性,不容易产生一边移动比另一边快的情况,避免了平移迟滞或倾斜的情况。同时,传动组件的各部分分布于支撑侧板的正面和背面,空间分布合理且紧凑,节省了舞台灯的内部空间。(The invention provides a stage lamp optical lens transmission mechanism which 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, wherein the supporting side plate is provided with a first end and a second end; the first transmission assembly and the second transmission assembly are mounted on the supporting side plate, and the first transmission assembly is connected with 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 with the third fixing plate and drives the third optical lens group to slide on the first sliding rod and the second sliding rod. The invention ensures the stability of the optical lens during translation, is not easy to generate the condition that one side moves faster than the other side, and avoids the condition of translation delay or inclination. Meanwhile, all parts of the transmission assembly are distributed on the front and the back of the supporting side plate, the space distribution is reasonable and compact, and the inner space of the stage lamp is saved.)

1. A stage lamp optical lens transmission mechanism is characterized by comprising 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 one end of the second sliding rod are fixedly connected with one end of the supporting side plate, and the other end of the first sliding rod and the other end of the second sliding rod are fixedly connected with the other end of the supporting side plate;

the first optical lens group is fixed at one end of the supporting side plate through a first fixing plate; the second optical lens group is fixed on a second fixed plate, and two ends of the second fixed plate are respectively connected to the first sliding rod and the second sliding rod in a sliding manner through sliding sleeves; the third optical lens group is fixed on a third fixed plate, and two ends of the third fixed plate are respectively connected to the first sliding rod and the second sliding rod in a sliding manner through sliding sleeves; wherein the second optical lens group is positioned between the first optical lens group and the third optical lens group;

the first transmission assembly and the second transmission assembly are mounted on the supporting side plate, and the first transmission assembly is connected with 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 with the third fixing plate and drives the third optical lens group to slide on the first sliding rod and the second sliding rod.

2. The stage light optical lens transmission mechanism of claim 1, wherein the first slide bar, the second optical lens group and the third optical lens group are disposed on the front surface of the support side plate;

the first transmission assembly comprises a first motor, a first driving wheel, a second driven wheel and a first transmission belt, the first motor is fixed on the back surface of the supporting side plate, an output shaft of the first motor penetrates through the supporting side plate and is fixedly connected with the first driving wheel on the front surface of the supporting side plate, the first driven wheel is fixed on the front surface of the supporting side plate, and the first driving wheel and the first driven wheel are in transmission connection through the first transmission belt; the second fixing plate is fixedly connected with the first transmission belt through a first connecting plate;

the first driven wheel and the first driving wheel are respectively positioned near two ends of the first sliding rod.

3. The stage lighting lens driving mechanism of claim 2, wherein the second driving assembly includes a second motor, a second driving wheel, a second driven wheel and a second driving belt, the second motor is fixed to the back surface of the supporting side plate, an output shaft of the second motor passes through the supporting side plate and is fixedly connected to the second driving wheel at the front surface of the supporting side plate, the second driven wheel is fixed to the front surface of the supporting side plate, and the second driving wheel and the second driven wheel are in driving connection through the second driving belt; the third fixing plate is fixedly connected with the second transmission belt through a second connecting plate;

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.

4. A stage light optical lens drive mechanism as claimed in claim 3, wherein the second drive assembly further comprises a third driven wheel, a fourth driven wheel, a fifth driven wheel, a third drive belt and a fourth drive belt disposed on the back of the support side plate; the third driven wheel is coaxially and fixedly connected with the second driven wheel, the third driven wheel is in transmission connection with the fourth driven wheel through a third transmission belt, and the fourth driven wheel is also in transmission connection with the fifth driven wheel through a fourth transmission belt; the third transmission belt and the second transmission belt form a certain included angle, and the fourth transmission belt is parallel to the second transmission belt;

the fourth driven wheel and the fifth driven wheel are arranged at positions between the first sliding rod and the second sliding rod on the back of the supporting side plate; and a slotted hole is formed in the supporting side plate corresponding to the fourth transmission belt, and the third fixing plate is fixedly connected with the fourth transmission belt through a third connecting plate at the slotted hole.

5. A stage light lens actuator as claimed in claim 4, wherein the length of the slot is less than or equal to the distance between the fourth and fifth driven wheels.

6. The stage light lens actuation mechanism of claim 4, wherein the second actuation assembly further comprises a tension adjustment wheel mounted to a back surface of the support side plate; two parallel limiting grooves are formed in the supporting side plate corresponding to the third transmission belt, and the extending direction of the limiting grooves is perpendicular to the third transmission belt; the tensioning adjusting wheel is fixed in the limiting groove, and the tensioning adjusting wheel is supported on the outer side of the third transmission belt and presses the third transmission belt inwards.

7. The stage light optical lens transmission mechanism of claim 4, wherein the front face of the support side plate is further fixedly mounted with a first position sensor and a second position sensor, the first position sensor being disposed near one end of the first optical lens group for sensing a 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 used for sensing the translation stroke of the third optical lens group.

Technical Field

The invention relates to the field of stage lamps, in particular to a transmission mechanism for an optical lens of a stage lamp.

Background

The optical lenses are important components in the stage lamp, and various lighting effects formed by the stage lamp are realized by means of focal length adjustment of a plurality of groups of optical lenses.

However, in the existing stage lamp, there are many defects in the design of the transmission mechanism of the optical lens, so that the left and right strokes of the lens during translation are often inconsistent during focal length adjustment, and the lens is inclined or translated unsmoothly during translation, and needs to be further improved and perfected.

Disclosure of Invention

The invention aims to provide a stage lamp optical lens transmission mechanism aiming at the defects in the prior art, which has stable transmission and good synchronism and can meet the requirement of synchronous and smooth translation of two sides of an optical lens.

In order to achieve the purpose, the invention adopts the following technical scheme:

a stage lamp 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;

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 one end of the second sliding rod are fixedly connected with one end of the supporting side plate, and the other end of the first sliding rod and the other end of the second sliding rod are fixedly connected with the other end of the supporting side plate;

the first optical lens group is fixed at one end of the supporting side plate through a first fixing plate; the second optical lens group is fixed on a second fixed plate, and two ends of the second fixed plate are respectively connected to the first sliding rod and the second sliding rod in a sliding manner through sliding sleeves; the third optical lens group is fixed on a third fixed plate, and two ends of the third fixed plate are respectively connected to the first sliding rod and the second sliding rod in a sliding manner through sliding sleeves; wherein the second optical lens group is positioned between the first optical lens group and the third optical lens group;

the first transmission assembly and the second transmission assembly are mounted on the supporting side plate, and the first transmission assembly is connected with 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 with the third fixing plate and drives the third optical lens group to slide on the first sliding rod and the second sliding rod.

Furthermore, the first sliding rod, the second optical lens group and the third optical lens group are all arranged on the front surface of the supporting side plate;

the first transmission assembly comprises a first motor, a first driving wheel, a second driven wheel and a first transmission belt, the first motor is fixed on the back surface of the supporting side plate, an output shaft of the first motor penetrates through the supporting side plate and is fixedly connected with the first driving wheel on the front surface of the supporting side plate, the first driven wheel is fixed on the front surface of the supporting side plate, and the first driving wheel and the first driven wheel are in transmission connection through the first transmission belt; the second fixing plate is fixedly connected with the first transmission belt through a first connecting plate;

the first driven wheel and the first driving wheel are respectively positioned near two ends of the first sliding rod.

Furthermore, the second transmission assembly comprises a second motor, a second driving wheel, a second driven wheel and a second transmission belt, the second motor is fixed on the back surface of the supporting side plate, an output shaft of the second motor penetrates through the supporting side plate and is fixedly connected with the second driving wheel on the front surface of the supporting side plate, the second driven wheel is fixed on the front surface of the supporting side plate, and the second driving wheel and the second driven wheel are in transmission connection through the second transmission belt; the third fixing plate is fixedly connected with the second transmission belt through a second connecting plate;

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.

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 which are arranged on the back face of the supporting side plate; the third driven wheel is coaxially and fixedly connected with the second driven wheel, the third driven wheel is in transmission connection with the fourth driven wheel through a third transmission belt, and the fourth driven wheel is also in transmission connection with the fifth driven wheel through a fourth transmission belt; the third transmission belt and the second transmission belt form a certain included angle, and the fourth transmission belt is parallel to the second transmission belt;

the fourth driven wheel and the fifth driven wheel are arranged at positions between the first sliding rod and the second sliding rod on the back of the supporting side plate; and a slotted hole is formed in the supporting side plate corresponding to the fourth transmission belt, and the third fixing plate is fixedly connected with the fourth transmission belt through a third connecting plate at the slotted hole.

Further, the length of the slotted hole is smaller than or equal to the distance between the fourth driven wheel and the fifth driven wheel.

Further, the second transmission assembly also comprises a tensioning adjusting wheel arranged on the back surface of the supporting side plate; two parallel limiting grooves are formed in the supporting side plate corresponding to the third transmission belt, and the extending direction of the limiting grooves is perpendicular to the third transmission belt; the tensioning adjusting wheel is fixed in the limiting groove, and the tensioning adjusting wheel is supported on the outer side of the third transmission belt and presses the third transmission belt inwards.

Furthermore, a first positioning sensor and a second positioning sensor are fixedly mounted on the front surface of the supporting side plate, and the first positioning sensor is arranged near one end close to the first optical lens group and used for sensing 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 used for sensing the translation stroke of the third optical lens group.

The invention ensures the stability of the optical lens during translation, is not easy to generate the condition that one side moves faster than the other side, and avoids the condition of translation delay or inclination. Meanwhile, all parts of the transmission assembly are distributed on the front and the back of the supporting side plate, the space distribution is reasonable and compact, and the inner space of the stage lamp is saved.

The invention also utilizes the tension adjusting wheel to press the third transmission belt inwards, so that the third transmission belt is tensioned between the third driven wheel and the fourth driven wheel. The tensioning degree of the third transmission belt can be adjusted by adjusting the position of the tensioning adjusting wheel in the limiting groove. The device is flexible and convenient to set and is convenient to perform later maintenance.

Drawings

Fig. 1 is a schematic overall structural diagram of a stage lighting optical lens transmission mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic back structure diagram of a stage lighting optical lens transmission mechanism according to an embodiment of the present invention.

Fig. 3 is a schematic front connection diagram of the third optical lens group and the second transmission assembly in the embodiment of the present invention.

Fig. 4 is a schematic diagram of the connection relationship between the third optical lens group and the back of the second transmission assembly in the embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 4, the 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.

Specifically, the first sliding rod 91, the second sliding rod 92 and the supporting side plate 1 are arranged in parallel, one end of the first sliding rod 91 and one end of the second sliding rod 92 are fixedly connected with one end of the supporting side plate 1, and the other end of the first sliding rod 91 and the other end of the second sliding rod 92 are fixedly connected with the other end of the supporting side plate 1;

the first optical lens group 11 is fixed at one end of the supporting side plate 1 through a first fixing plate 21; the second optical lens group 12 is fixed on the second fixed plate 22, and two ends of the second fixed plate 22 are respectively connected to the first sliding rod 91 and the second sliding rod 92 in a sliding manner through sliding sleeves; the third optical lens group 13 is fixed on the third fixing plate 21, and two ends of the third fixing plate 21 are respectively connected to the first slide bar 91 and the second slide bar 92 in a sliding manner 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;

the first transmission assembly and the second transmission assembly are mounted on the supporting side plate 1, the first transmission assembly is connected with the second fixed plate 22, and drives the second optical lens group 12 to slide on the first slide bar 91 and the second slide bar 92; the second transmission assembly is connected with the third fixing plate 23 to drive the third optical lens group 13 to slide on the first slide bar 91 and the second slide bar 92.

As shown in fig. 1 and fig. 2, the first sliding rod 91, the second sliding rod 92, the second optical lens group 12 and the third optical lens group 13 are all disposed on the front surface of the supporting side plate 1;

the first transmission assembly comprises a first motor 71, a first driving wheel 31, a second driven wheel 41 and a first transmission belt 51, the first motor 71 is fixed on the back surface of the supporting side plate 1, an output shaft of the first motor 71 penetrates through the supporting side plate 1, the front surface of the supporting side plate 1 is fixedly connected with the first driving wheel 31, the first driven wheel 41 is fixed on the front surface of the supporting side plate 1, and the first driving wheel 31 and the first driven wheel 41 are in transmission connection through the first transmission belt 51; the second fixing plate 22 is fixedly connected with the first transmission belt 51 through a first connecting plate 61; wherein, the first driven wheel 41 and the first driving wheel 31 are respectively positioned near two ends of the first sliding rod 91.

Further, the second transmission assembly comprises 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 on the back surface of the support side plate 1, an output shaft of the second motor 72 penetrates through the support side plate 1, the second driving wheel 32 is fixedly connected with the front surface of the support side plate 1, the second driven wheel 42 is fixed on the front surface of the support side plate 1, and the second driving wheel 32 and the second driven wheel 42 are in transmission connection through the second transmission belt 52; the third fixing plate 23 is fixedly connected with the second transmission belt 52 through a second connecting plate 62; the second driver 32 is located near one end of the second slide rod 92 close to the third optical lens group 13, and the second driven wheel 42 is located near the middle of the second slide rod 92.

As a modification, the second transmission assembly further comprises 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 which are arranged on the back surface of the support side plate 1; the third driven wheel 43 is coaxially and fixedly connected with the second driven wheel 42, the third driven wheel 43 is in transmission connection with the fourth driven wheel 44 through a third transmission belt 53, and the fourth driven wheel 44 is also in transmission connection with the fifth driven wheel 45 through a fourth transmission belt 54; wherein the third belt 53 and the second belt 52 have a certain included angle, and the fourth belt 54 is parallel to the second belt 52; in this embodiment, the third belt 53 is perpendicular to the second belt 52.

The fourth driven wheel 44 and the fifth driven wheel 45 are arranged at positions between the first sliding bar 91 and the second sliding bar 92 on the back of the supporting side plate 1; a slotted hole 60 is formed on the supporting side plate 1 corresponding to the fourth transmission belt 54, and at the slotted hole 60, the third fixing plate 23 is fixedly connected with the fourth transmission belt 54 through a third connecting plate 63.

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

Through the above structure, when the third optical lens group 13 translates on the first sliding rod 91 and the second sliding rod 92, the right side of the third fixing plate 23 is driven by the second transmission belt 52, the middle part of the third fixing plate 23 is driven by the fourth transmission belt 54 near the left side, and the second transmission belt 52 and the fourth transmission belt 54 are driven by the second to the fourth driven wheels and the third transmission belt 53 to realize synchronous transmission, thereby ensuring the stability of the third optical lens group 13 during translation, not easily generating the condition that one side moves faster than the other side, and avoiding the condition of translation delay or inclination. Meanwhile, all parts of the second transmission assembly are distributed on the front and the back of the supporting side plate 1, the space distribution is reasonable and compact, and the inner space of the stage lamp is saved.

As a modification, the second transmission assembly further comprises a tensioning adjusting wheel 4 arranged on the back surface of the supporting side plate 1; two parallel limiting grooves 40 are formed in the supporting side plate 1 corresponding to the third transmission belt 53, and the extending direction of the limiting grooves 40 is perpendicular to the third transmission belt 53; the tension adjusting wheel 4 is fixed in the limiting groove 40, and the tension adjusting wheel 4 is supported on the outer side of the third transmission belt 53 to press the third transmission belt 53 inwards.

In the transmission process of the second transmission assembly, the third transmission belt 53 is an intermediate transmission member and is not directly connected to the second motor 72 or the third fixing plate 23, so that the third transmission belt 53 is easily loosened. In the embodiment of the invention, the tensioning adjusting wheel 4 is additionally arranged on the supporting side plate 1, and the third transmission belt 53 is pressed inwards by the tensioning adjusting 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 tension adjusting wheel 4 in the stopper groove 40, the degree of tension of the third transmission belt 53 can be adjusted. The device is flexible and convenient to set and is convenient to perform later maintenance.

Further, a first positioning sensor 81 and a second positioning sensor 82 are fixedly mounted on the front surface of the supporting side plate 1, and the first positioning sensor 81 is disposed near one end of the first optical lens group 11 and used for sensing the translation stroke of the second optical lens group 12; the second positioning sensor 82 is disposed near one end of the third optical lens group 13 for sensing the translation stroke of the third optical lens group 13.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.