Electric turnover lens cover

Abstract

The invention provides an electric turnover lens cover. Through the connecting rod mechanism, switching between a lens cover unfolding state shown in a figure 1 and a lens cover protection state shown in a figure 2 is realized under the condition that the lens cover rotates by 90 degrees. The effect that the original lens cover is overturned by more than 180 degrees around the rotating shaft is achieved, the situation that the windward area of the lens cover is large in the overturning process is avoided, the influence of wind resistance is reduced, and the environment adaptability is high.

Description

Technical Field

[0001] The present application relates to the technical field of optoelectronic devices, and in particular to an electric flip lens cover. Background Art

[0002] During use, optoelectronic equipment is often eroded by wind, sand and rain, which may corrode or contaminate the lens of the optoelectronic equipment, thereby reducing the performance and service life of the optoelectronic equipment. Therefore, a protective cover, also called a lens cover, is often installed in front of the optical lens of the optoelectronic equipment.

[0003] Commonly used lens caps have two opening and closing methods: manual and electric. Manual lens caps are suitable for general cameras or application scenarios that are easy to open manually. Electric lens caps are widely used. Many optoelectronic devices are installed on the top of tanks or on the masts of ships. They need to be automatically opened and closed during travel. The lens needs to be flipped and opened and closed electrically. Commonly used electric flip lens caps are generally driven by gear boxes, synchronous belts, etc., and the lens cap is rotated more than 180° through the shaft to enter the open state. Under normal circumstances, this method can better realize the opening and closing function. Considering the use environment of tanks or ships, when the tank is in bumpy road conditions or the ship is in high sea conditions, coupled with strong external winds, it is easy to cause the lens cap to fail to open or even be damaged. Summary of the invention

[0004] The present invention aims to provide an electric flip lens cover which can realize the flip of the lens cover by rotating the lens cover by 90 degrees through a connecting rod mechanism. Figure 1 The lens cover is extended and Figure 2 The lens cover protection state is switched. The original lens cover can be flipped more than 180° around the rotation axis, avoiding the situation where the lens cover faces a large windward area during the flipping process, reducing the impact of wind resistance, and having strong environmental adaptability.

[0005] An embodiment of the present invention provides an electric flip lens cover, comprising:

[0006] The slider mechanism comprises a linear motor module 8 and a slider 7, wherein the linear motor module 8 is used to drive the slider 7 to perform linear motion;

[0007] The connecting rod 3 6 is connected to the slider 7 and the lens cover 5 respectively through two pins 2 9, and is fixed with a split pin 10 to prevent it from falling off;

[0008] The double rocker mechanism is composed of a connecting rod 1 2, a connecting rod 2 3 and a lens cover plate 5. The connecting rod 1 2 and the connecting rod 2 3 are connected to the side wall of the optical instrument 12 through a pin 11, can rotate freely, and are connected to the lens cover plate 5.

[0009] In some embodiments, the linear motor module 8 drives the linear motion of the slider 7, and drives the flipping of the double rocker mechanism through the connecting rod 3 6, so that the lens cover 5 rotates to achieve an open or closed state.

[0010] In some embodiments, the slider mechanism controls the double rocker mechanism to realize the self-locking function of the lens cover 5 .

[0011] In some embodiments, the lengths of the connecting rod 1 2 and the connecting rod 2 3 and the position of the connection point of the lens cover 5 can enable the lens cover 5 to extend a certain length H from the lens 1 in the open state, thereby ensuring the field of view of the optoelectronic device sensor. It can be used as a sunshade without blocking the view.

[0012] In some embodiments, the slider 7 of the linear motor module 8 performs linear motion via a lead screw, and a self-contained positioning mechanism controls the moving position to ensure that the lens cover 5 can achieve both closed and open states.

[0013] In some embodiments, the connecting rod 2 3 in the double rocker mechanism is limited by the fixing point B of the connecting rod 1 2 at the left limit position and by the limiting rod 4 at the right limit position, ensuring that the connecting rod 2 3 rotates within a limited angle range.

[0014] An embodiment of the present invention provides an optical device provided with the electric flip lens cover as described in any of the above embodiments.

[0015] The beneficial effects of the above embodiments include:

[0016] The electric flip lens cover of the present invention uses a connecting rod mechanism to switch between the unfolded state and the protected state of the lens cover when the lens cover is rotated 90 degrees. The effect of the original lens cover flipping more than 180 degrees around the rotation axis is achieved, the situation that the lens cover has a large windward area during the flipping process is avoided, the influence of wind resistance is reduced, and the environmental adaptability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0018] Figure 1 Expand the state diagram for the lens cover;

[0019] Figure 2 This is a diagram of the lens cover protection status.

[0020] Explanation of symbols:

[0021] 1-lens; 2-connecting rod one; 3-connecting rod two; 4-limiting rod; 5-lens cover; 6-connecting rod three; 7-slider; 8-linear motor module; 9-pin shaft two; 10-split pin; 11-pin shaft one; 12-optical instrument. DETAILED DESCRIPTION

[0022] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0023] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0025] The electric flip lens cover of the present invention drives the linear motor module 8 to drive the linear motion of the slider 7, which drives the flipping of the double rocker mechanism composed of the connecting rod 1 2, the connecting rod 2 3, and the lens cover 5 through the connecting rod 3 6, so that the lens cover 5 rotates 90° around the A and B points to reach the open or closed state.

[0026] The electric flip lens cover of the present invention realizes the following operation by using a connecting rod mechanism: Figure 1 The lens cover is extended and Figure 2 The lens cover protection state is switched. The original lens cover can be flipped more than 180° around the rotation axis, avoiding the situation where the lens cover faces a large windward area during the flipping process, reducing the impact of wind resistance, and having strong environmental adaptability.

[0027] The electric flip lens cover of the present invention realizes self-locking of the lens cover through a lead screw, thereby preventing the lens cover from being loosely closed or fully opened due to base body vibration or strong wind.

[0028] The electric flip lens cover of the present invention drives the linear movement of the slider mechanism formed by the slider 7 through the linear motor module 8, drives the movement of the lens cover plate, realizes flipping, has a large turning force arm, moves smoothly, and is easy to drive.

[0029] The electric flip lens cover of the present invention can make the lens cover plate 5 in the open state, such as Figure 1 As shown, the lens 1 is extended to a certain length H, while ensuring the field of view of the photoelectric device sensor Under the premise of not blocking any light, it can be used as a sunshade to reduce the impact of sunlight and stray light.

[0030] The electric flip lens cover of the present invention uses a linear motor module 8, and the upper slider 7 can move linearly through a lead screw, and its self-leading positioning mechanism can control the moving position to ensure that the lens cover plate can achieve two states: closed and open;

[0031] The connecting rod 3 6 is connected to the slider 7 and the lens cover 5 through two pins 2 9, and is prevented from falling off by a split pin 10;

[0032] The connecting rod 1 2 and the connecting rod 2 3 are connected to the side wall of the optical instrument 12 through the pin 11, can rotate freely, and are connected to the lens cover plate 5 to form a double rocker mechanism;

[0033] In the double rocker mechanism, the connecting rod 2 3 is limited by the connecting rod 1 2 fixed point B at the left limit position and by the limiting rod 4 at the right limit position, so that the connecting rod 2 3 can rotate within a limited angle range;

[0034] When the electric flip lens cover of the present invention is in an unfolded state, a certain length H is reserved to shield direct sunlight and stray light.

[0035] The slider 7 driven by the linear motor module 8 of the present invention moves to the right, and the double rocker mechanism composed of the connecting rod 1 2, the connecting rod 2 3, and the lens cover 5 is turned over through the connecting rod 3 6, so that the lens cover 5 rotates 90° around the A and B points to reach the open state.

[0036] The slider 7 driven by the linear motor module 8 moves to the left, and the double rocker mechanism composed of the connecting rod 1 2, the connecting rod 2 3, and the lens cover 5 is flipped through the connecting rod 3 6, so that the lens cover 5 rotates 90° around the A and B points to reach the closed state.

[0037] The electric flip lens cover of the present invention realizes the following operation by using a connecting rod mechanism: Figure 1 The lens cover is extended and Figure 2 The lens cover protection state is switched. The original lens cover is flipped 180° around the rotation axis, avoiding the situation where the lens cover faces a large windward area during the flipping process, reducing the impact of wind resistance, and having strong environmental adaptability.

[0038] The electric flip lens cover of the present invention drives the linear movement of the slider mechanism formed by the slider 7 through the linear motor module 8, drives the movement of the lens cover plate, realizes flipping, has a large turning force arm, moves smoothly, and is easy to drive.

[0039] The electric flip lens cover of the present invention can make the lens cover plate 5 in the open state, such as Figure 1 As shown, the lens 1 is extended to a certain length H, while ensuring the field of view of the optical instrument When not blocking the view, it can be used as a sunshade to reduce sunlight and stray light.

[0040] The embodiment of the present invention provides a technical solution for an electric flip lens cover. Figure 1 and Figure 2 As shown, the electric flip lens cover includes:

[0041] Linear motor module (8): as a driving force source, responsible for driving the slider (7) to perform linear motion.

[0042] Slider (7): driven by a linear motor module (8) to perform linear motion.

[0043] Connecting rod three (6): connects the slider (7) and the lens cover plate (5), is connected to the slider (7) and the lens cover plate (5) through pin shaft two (9), and is fixed with a split pin (10) to prevent it from falling off.

[0044] The double rocker mechanism is composed of a connecting rod 1 (2), a connecting rod 2 (3) and a lens cover plate (5). The connecting rod 1 (2) and the connecting rod 2 (3) are connected to the side wall of the optical instrument (12) through a pin shaft 1 (11) and connected to the lens cover plate (5).

[0045] The working mechanism of the electric flip lens cover is as follows:

[0046] The linear motor module (8) drives the slider (7) to move linearly, and drives the double rocker mechanism to flip through the connecting rod three (6), so that the lens cover plate (5) rotates 90 degrees around points A and B to reach an open or closed state.

[0047] Through the design of the connecting rod mechanism, the lens cover plate (5) can be switched between the unfolded state and the protected state when it is rotated 90 degrees, thereby reducing the influence of wind resistance and enhancing environmental adaptability.

[0048] The self-locking function of the lens cover plate (5) is achieved by means of a lead screw, thereby avoiding the problem of the lens cover not being tightly closed or fully opened due to base body vibration or wind force.

[0049] The linear motor module (8) drives the slider (7) to form a slider mechanism to move linearly, thereby driving the lens cover (5) to move and achieve flipping. The linear motor module (8) has a large rotation force arm, moves smoothly, and is easy to drive.

[0050] The lengths of the first connecting rod (2) and the second connecting rod (3) and the position of the connection point of the lens cover plate (5) are designed so that the lens cover plate (5) extends out of the lens (1) by a certain length H when in the open state, thereby ensuring the field of view of the sensor of the photoelectric device While not blocking any light, it can also be used as a sunshade to reduce the impact of sunlight and stray light.

[0051] The slider (7) of the linear motor module (8) performs linear motion via a lead screw, and the self-propelled positioning mechanism controls the moving position, thereby ensuring that the lens cover plate (5) can achieve two states: closed and opened.

[0052] The second connecting rod (3) in the double rocker mechanism is limited by the fixing point B of the first connecting rod (2) at the left limit position and by the limiting rod (4) at the right limit position, thereby ensuring that the second connecting rod (3) rotates within a limited angle range.

[0053] An embodiment of the present invention provides an optical device provided with an electric flip lens cover as described in any of the above embodiments.

[0054] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0055] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electric flip lens cover, characterized in that: include: A slider mechanism comprises a linear motor module (8) and a slider (7), wherein the linear motor module (8) is used to drive the slider (7) to perform linear motion; The connecting rod 3 (6) is connected to the slider (7) and the lens cover plate (5) respectively through two pin shafts 2 (9), and is fixed with a split pin (10) to prevent it from falling off; The double rocker mechanism is composed of a connecting rod 1 (2), a connecting rod 2 (3) and a lens cover plate (5); the connecting rod 1 (2) and the connecting rod 2 (3) are connected to the side wall of an optical instrument (12) through a pin 1 (11), can rotate freely, and are connected to the lens cover plate (5).

2. The electric flip lens cover according to claim 1, characterized in that: The linear motor module (8) drives the linear motion of the slider (7), and drives the double rocker mechanism to flip through the connecting rod three (6), so that the lens cover (5) rotates to achieve an open or closed state.

3. The electric flip lens cover according to claim 1, characterized in that: The slider mechanism controls the double rocker mechanism to realize the self-locking function of the lens cover plate (5).

4. The electric flip lens cover according to claim 1, characterized in that: The lengths of the connecting rod 1 (2), the connecting rod 2 (3) and the position of the connection point of the lens cover plate (5) enable the lens cover plate (5) to extend a certain length H from the lens (1) in the open state, thereby ensuring the field of view angle of the photoelectric device sensor It can be used as a sunshade without blocking the view.

5. The electric flip lens cover according to claim 1, characterized in that: The slider (7) of the linear motor module (8) moves linearly via a lead screw, and is self-contained in-position mechanism, controlling the moving position, thereby ensuring that the lens cover (5) can achieve two states: closed and open.

6. The electric flip lens cover according to claim 1, characterized in that: The second connecting rod (3) in the double rocker mechanism is limited by the fixed point B of the first connecting rod (2) at the left limit position and by the limiting rod (4) at the right limit position, thereby ensuring that the second connecting rod (3) rotates within a limited angle range.

7. An optical device, characterized in that: An electric flip lens cover as claimed in any one of claims 1 to 6 is provided.

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