Electric control switching driving unit of magnification lens

Abstract

The utility model relates to an electric control switching driving unit of a magnification lens, which comprises a micro steering engine, a rocker arm, an annular deflector rod, a driving plate, a control line, a shell and a reset key, the micro steering engine, the rocker arm, the annular deflector rod and the driving plate are all fixedly arranged in the shell, the reset key is arranged on one side of the outer part of the shell, and the reset key is in wired electric signal connection with the driving plate. One end of the control line penetrates through the shell and is electrically connected with the driving plate located in the shell, a mounting hole is formed in one side of the shell, a magnification lens is fixedly mounted in the mounting hole and is in transmission connection with the micro steering engine, the rocker arm is in transmission connection with a manual adjusting rotating shaft of the micro steering engine, and one end of the annular shifting rod is fixedly connected with the rocker arm. According to the technical scheme of the utility model, by means of accurate angle and force calculation, reasonable material selection and structural optimization design, an original broadcast-level magnification lens of which magnification switching can be operated only manually is upgraded into a full-remote-control lens of which magnification switching can be electrically driven and which can be remotely controlled in an extremely simple and reliable manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of broadcast television, especially a kind of electric control switching drive unit of magnification lens. BACKGROUND

[0002] Remote production type broadcast camera is widely used in studio, meeting place (including video conference and court), sports events, large-scale entertainment activities and remote medical treatment and other fields.In order to reduce cost, the broadcast lens with magnification expansion function is often used in the above-mentioned scenes, so as to realize the magnification of lens optical zoom when needed.However, it is annoying that 1, the magnification switching of the above-mentioned lens is only manually operated, even if individual manufacturers can choose and purchase electric control drive, due to the reasons such as complex mechanical structure, poor universality, the need for secondary development and high price (the purchase cost is more than 20,000 yuan RMB), people are reluctant to do it. INVENTION CONTENTS

[0003] The utility model aims at providing a kind of electric control switching drive unit of magnification lens to solve the problems existing in the prior art.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] An electric control switching drive unit of magnification lens, comprising a micro steering engine, a rocker arm, a ring-shaped lever, a drive board, a control line, a shell and a reset key, the micro steering engine, the rocker arm, the ring-shaped lever and the drive board are fixedly installed in the inside of the shell, the reset key is arranged on the outside of the shell, the reset key is connected with the drive board by wired electrical signal, one end of the control line passes through the shell and is electrically connected with the drive board in the shell, one side of the shell is provided with a mounting hole, a magnification lens is fixedly installed in the mounting hole, the magnification lens is drivingly connected with the micro steering engine, the rocker arm is drivingly connected with the manual adjustment shaft of the micro steering engine, one end of the ring-shaped lever is fixedly connected with the rocker arm.

[0006] By adopting the above technical scheme, accurate angle and force calculation, reasonable material selection and structure optimization design, the broadcast magnification lens that can only be manually operated for magnification switching is upgraded to full-remote control lens that can be remotely controlled and electrically driven for magnification switching in a very simple and reliable way, and it runs quietly, quickly and stably, so that the product can be more widely used in studio, conference room, operating room, court and other quiet and important occasions, and the use efficiency of broadcast magnification lens is effectively improved.

[0007] In further embodiments, a partition is arranged in the middle of the inner bottom of the shell, the partition is used to divide the inner part of the shell into left and right front and rear chambers, the driving plate is fixedly installed in the rear chamber of the inner part of the shell, and a containing groove is arranged at the top end of the partition, and the micro steering engine is fixedly installed in the containing groove.

[0008] In further embodiments, a groove is arranged at the front end of the bottom of the shell, and the sliding part of the annular shifting rod is arranged at the end away from the rocker arm and is slidably installed in the groove.

[0009] In further embodiments, the control line is a DC line.

[0010] In further embodiments, a plurality of threaded holes are arranged at the bottom of the shell, and hooks are fixedly installed in the threaded holes.

[0011] In further embodiments, a plurality of hanger holes are arranged at the bottom of the shell, and hangers are fixedly installed in the hanger holes.

[0012] In summary, the utility model has the following beneficial effects:

[0013] 1. By accurate angle and force calculation, reasonable material selection and structure optimization design, the originally manually-operated broadcast-level magnification lens is upgraded to a remotely-controlled electrically-driven magnification switching full-remote-control lens in an extremely simple and reliable manner, and the running is quiet, fast and stable. The product is more suitable for various quiet and important occasions such as studios, conference rooms, operating rooms and courts, and the use efficiency of the broadcast-level magnification lens is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] In the figure, 1 is a micro steering engine, 2 is a rocker arm, 3 is an annular shifting rod, 4 is a driving plate, 5 is a control line, 6 is a shell, 8 is a reset key. DETAILED DESCRIPTION

[0016] The utility model will be further described in detail below in combination with the drawings.

[0017] Wherein, the same parts are indicated by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the drawings attached Figure 1In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0018] Example 1:

[0019] like Figure 1 As shown, an electrically controlled switching drive unit for a magnification lens includes a micro servo motor 1, a rocker arm 2, a ring lever 3, a drive board 4, a control line 5, a housing 6, and a reset button 8. The micro servo motor 1, rocker arm 2, ring lever 3, and drive board 4 are all fixedly installed inside the housing 6. The reset button 8 is located on the outer side of the housing and is electrically connected to the drive board 4. One end of the control line 5 passes through the housing 6 and is electrically connected to the drive board 4 located inside the housing 6. A mounting hole is provided on one side of the housing 6, and a magnification lens is fixedly installed in the mounting hole. The magnification lens is driven by the micro servo motor 1, and the rocker arm 2 is driven by the manual adjustment shaft of the micro servo motor 1. The ring lever 3 is fixedly connected to the rocker arm 2 at one end. A partition is provided in the middle of the bottom of the housing 6. The partition is used to divide the interior of the housing 6 into left, right, front and rear chambers. The drive plate 4 is fixedly installed in the rear chamber inside the housing 6. A receiving groove is provided at the top of the partition. The micro servo 1 is fixedly installed in the receiving groove. A groove is provided at the front bottom of the housing 6. A sliding part is provided at the end of the ring lever 3 away from the rocker arm 2 and is slidably installed in the groove. The control line 5 is a DC line. Multiple threaded holes are provided at the bottom of the housing 6. Hooks are fixedly installed in the threaded holes. Multiple mounting holes are provided at the bottom of the housing 6. Mounting fixtures are fixedly installed in the mounting holes.

[0020] Specific implementation process: The housing 6 of the electronically controlled magnification switching drive unit for broadcast-grade zoom lenses is robust and compact, making it suitable for installation at the bottom of most broadcast-grade zoom lens magnification switching assemblies. Connecting the DC / control line 5 to the DC (power) / control port on the remote control pan / tilt unit, and then operating the pan / tilt unit's controller, allows for a simple and reliable upgrade of broadcast-grade zoom lenses that previously required manual magnification switching to a remotely controllable, electrically driven lens magnification switching system. This system operates quietly, quickly, and stably. This makes the product more widely suitable for use in various quiet and important settings such as studios, conference rooms, operating rooms, and courtrooms, effectively improving the performance of broadcast-grade zoom lenses.

[0021] In the embodiments disclosed by the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium.

[0022] The specific embodiments are merely illustrative of the utility model, and are not a limitation of the utility model, and those skilled in the art can make modifications to the embodiments without creative contribution according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. An electrically controlled switching drive unit of a power zoom lens, characterized by: Including micro steering engine (1), rocker arm (2), annular shift lever (3), drive plate (4), control line (5), shell (6) and reset key (8), micro steering engine (1), rocker arm (2), annular shift lever (3), drive plate (4) are all fixedly installed in the inside of shell (6), reset key (8) is arranged at one side of the outside of shell, reset key (8) is wired signal connection with drive plate (4), one end of control line (5) passes through shell (6) and is electrically connected with drive plate (4) located in the inside of shell (6), one side of shell (6) is provided with mounting hole, the mounting hole is fixedly installed with magnification lens, the magnification lens is transmission connection with micro steering engine (1), the rocker arm (2) is transmission connection with the manual adjustment pivot of micro steering engine (1), one end of annular shift lever (3) is fixedly connected with rocker arm (2).

2. The electrically controlled switching drive unit of a power zoom lens according to claim 1, characterized in that: The inner bottom of the shell (6) is provided with a partition plate, the partition plate is used to separate the inside of the shell (6) into left and right front and rear chambers, the drive plate (4) is fixedly installed in the rear chamber of the inside of the shell (6), the top end of the partition plate is provided with a containing groove, and the micro steering engine (1) is fixedly installed in the containing groove.

3. The electrically controlled switching drive unit of a power zoom lens according to claim 1, wherein: The bottom of the shell (6) is provided with a groove, and the end of the annular shift lever (3) away from the rocker arm (2) is provided with a sliding part slidably installed in the groove.

4. The electrically controlled switching drive unit of a power zoom lens according to claim 1, wherein: The control line (5) is a DC line.

5. The electrically controlled switching drive unit of a power zoom lens according to claim 1, wherein: The bottom of the shell (6) is provided with a plurality of threaded holes, and the threaded holes are fixedly installed with hooks.

6. The electrically controlled switching drive unit of a power zoom lens according to claim 1, wherein: The bottom of the shell (6) is provided with a plurality of hanger holes, and the hanger holes are fixedly installed with hangers.

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