Compact rapid opening and closing protection device based on flat light window

Abstract

The invention provides a compact type rapid opening and closing protection device based on a flat light window, and belongs to the technical field of photoelectric equipment, the compact type rapid opening and closing protection device specifically comprises a protection baffle and a driving mechanism, the driving mechanism is installed on an installation shell of the flat light window, the protection baffle is used for covering the flat light window, and a connecting shaft is arranged on the first side edge of the protection baffle; the connecting shaft is connected with an output shaft of the driving mechanism, the driving mechanism drives the protection baffle to rotate around the connecting shaft so that the flat light window can be close to or away from the flat light window, a permanent magnet is arranged on the protection baffle, a magnetic material block is arranged on the installation shell, and when the compact type rapid opening and closing protection device is powered off, the permanent magnet adsorbs the magnetic material block. Therefore, the protection baffle plate and the mounting shell are stably propped against each other; when the compact rapid opening and closing protection device is electrified, the electromagnetic assembly applies acting force away from the outer surface of the mounting shell to the magnetic material block, and the attraction force of the permanent magnet and the magnetic material block is reduced. The flat light window can be effectively protected, and quick opening and closing of the protection baffle are guaranteed.

Description

Technical Field

[0001] The present application relates to the field of optoelectronic devices, and in particular to a compact fast opening and closing protection device based on a flat light window. Background Art

[0002] Traditional optoelectronic products do not protect flat-panel light windows. Windy sand and falling stones in the operating environment can damage the flat-panel light windows, or even cause them to break and stop working. Summary of the invention

[0003] In view of this, the present application provides a compact quick-opening and closing protection device based on a flat light window, which solves the problems in the prior art and can achieve effective protection for the flat light window.

[0004] The present application provides a compact fast opening and closing protection device based on a flat light window, which adopts the following technical solution:

[0005] A compact fast opening and closing protection device based on a flat light window comprises a protection baffle and a driving mechanism, wherein the driving mechanism is mounted on a mounting shell of the flat light window, the protection baffle is used to cover the flat light window, a connecting shaft is provided on a first side of the protection baffle, the connecting shaft is rotatably mounted on the mounting shell, the connecting shaft is connected to an output shaft of the driving mechanism, and the driving mechanism drives the protection baffle to rotate around the connecting shaft to make the flat light window approach or move away from the flat light window;

[0006] The side opposite to the first side on the protection baffle is the second side, the installation shell includes an installation side and an abutting side, the installation side and the abutting side are respectively located on opposite sides of the flat light window, the driving mechanism is installed on the installation side of the installation shell, a ferromagnetic material block is provided on the abutting side of the installation shell, a permanent magnet corresponding to the ferromagnetic material block is provided on the protection baffle near the second side, the permanent magnet is located on the side of the protection baffle facing the flat light window, a through hole is provided on the abutting side of the installation shell for the ferromagnetic material block to slide along a direction perpendicular to the flat light window, a limiting boss is provided in the through hole, a convex block is provided on the magnetic material block abutting against one end of the limiting boss away from the outer surface of the flat light window, when the convex block abuts against the limiting boss, one end of the magnetic material block extends out of the through hole, an elastic member is provided in the through hole, the elastic member applies a force to the boss close to the limiting boss, an electromagnetic component is provided inside the installation shell, and after the electromagnetic component is energized, a force is applied to the boss away from the limiting boss so that the magnetic material block is located in the through hole;

[0007] Among them, when the compact quick opening and closing protection device is powered off, the permanent magnet absorbs the magnetic material block so that the protective baffle and the mounting shell are stably abutted; when the compact quick opening and closing protection device is powered on, the electromagnetic component applies a force to the magnetic material block away from the outer surface of the mounting shell, reducing the suction force between the permanent magnet and the magnetic material block, and the driving mechanism controls the position of the protective baffle.

[0008] Optionally, the driving mechanism includes a slewing support frame, a motor, a first slewing shaft and a second slewing shaft, the slewing support frame is fixed on the mounting housing, the motor is fixed on the slewing support frame, the first slewing shaft is installed on one end of the slewing support frame through a bearing, the second slewing shaft is installed on the other end of the slewing support frame through a bearing, the output shaft of the motor is connected to the first slewing shaft, wherein the motor is a servo motor;

[0009] The connecting shaft includes a first connecting bracket and a second connecting bracket, the first connecting bracket is connected to one end of the first side, the second connecting bracket is connected to the other end of the first side, the first connecting bracket is fixedly connected to the first rotating shaft, and the second connecting bracket is fixedly connected to the second rotating shaft.

[0010] Optionally, the driving mechanism also includes a controller, a magnet bracket, a Hall magnet and a Hall plate, wherein the Hall plate is mounted on the end of the rotating support frame connected to the second rotating shaft, the Hall magnet is mounted on the magnet bracket, and the magnet bracket is mounted on the second rotating shaft. The Hall plate is used to detect the angular position of the Hall magnet, and the Hall plate is electrically connected to the controller, and the controller controls the speed of the motor and the start and stop of the motor according to the position of the Hall magnet.

[0011] Optionally, the driving mechanism also includes a rotating pressure cover, which is located between the first connecting bracket and the rotating support frame, and the rotating pressure cover and the rotating support frame are fixedly connected. The rotating pressure cover is provided with a first positioning protrusion and a second positioning protrusion, and the first positioning protrusion and the second positioning protrusion are circumferentially spaced around the first rotating axis. A block is provided on the first connecting bracket, and the block abuts against the first positioning protrusion when the protective baffle covers the flat light window, and the block abuts against the second positioning protrusion when the protective baffle is opened and perpendicular to the flat light window.

[0012] Optionally, a rubber pad is provided on the side of the second side edge of the protective baffle facing the flat light window, the rubber pad is located around the permanent magnet, and the rubber pad is used to abut against the abutting side of the mounting shell.

[0013] Optionally, the permanent magnets are provided on both ends of the side surface of the protective baffle facing the flat light window corresponding to the first side edge.

[0014] Optionally, the magnetic material block is a steel block.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] When the compact fast opening and closing protection device of the present application is powered off, the permanent magnet absorbs the magnetic material to make the protective baffle and the mounting shell stably abut against each other, avoiding the random shaking of the protective baffle when the device is powered off, and protecting the flat light window. When the compact fast opening and closing protection device is powered on, the electromagnetic component applies a force to the magnetic material block away from the outer surface of the mounting shell, reducing the suction force between the permanent magnet and the magnetic material block, avoiding the adsorption force between the permanent magnet and the magnetic material block from hindering the opening of the protective baffle, and improving the efficiency of the protective opening; the position of the protective baffle is controlled by the driving mechanism to realize the opening and closing of the protective baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram of the compact fast opening and closing protection device based on the flat light window of the present application in the open state;

[0019] Figure 2 This is a schematic structural diagram of the closed state of the compact fast opening and closing protection device based on the flat light window of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the steel block, through hole, elastic member and electromagnetic assembly of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of the driving mechanism of this application;

[0022] Figure 5 This is a schematic diagram of the structure of the rotary gland and stopper of this application.

[0023] Explanation of the accompanying drawings: 1. Mounting shell; 2. Magnetic material block; 201. Through hole; 202. Limiting boss; 203. Bump; 204. Elastic member; 205. Electromagnetic assembly; 3. Flat light window; 4. Driving mechanism; 5. Protective baffle; 6. Permanent magnet; 7. Rubber pad; 8. First connecting bracket; 9. Rotary pressure cover; 91. First positioning protrusion; 92. Block; 93. Second positioning protrusion; 10. First rotating shaft; 11. Bearing; 12. Rotating support frame; 13. Magnet bracket; 14. Hall magnet; 15. Hall plate; 16. Second rotating shaft; 17. Second connecting bracket; 18. Connecting frame; 19. Motor; 20. Protective cover; 21. Adapter shaft; 22. Coupling. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0029] The embodiment of the present application provides a compact quick-opening and closing protection device based on a flat light window.

[0030] like Figures 1 to 3 As shown, a compact quick-opening and closing protection device based on a flat light window includes a protection baffle 5 and a driving mechanism 4, wherein the driving mechanism 4 is mounted on a mounting shell 1 of the flat light window 3, the protection baffle 5 is used to cover the flat light window 3, a connecting shaft is provided on a first side edge of the protection baffle 5, the connecting shaft is rotatably mounted on the mounting shell 1, the connecting shaft is connected to an output shaft of the driving mechanism 4, and the driving mechanism 4 drives the protection baffle 5 to rotate around the connecting shaft to make the flat light window 3 approach or move away from the flat light window 3.

[0031] The side of the protective baffle 5 opposite to the first side is the second side. The mounting shell 1 includes a mounting side and an abutting side, and the mounting side and the abutting side are respectively located on opposite sides of the flat light window 3. The driving mechanism 4 is mounted on the mounting side of the mounting shell 1. A ferromagnetic material block 2 is provided on the abutting side of the mounting shell 1. A permanent magnet 6 corresponding to the ferromagnetic material block 2 is provided on the protective baffle 5 near the second side. The permanent magnet 6 is located on the side of the protective baffle 5 facing the flat light window 3. A through hole 201 is provided on the abutting side of the mounting shell 1 for the ferromagnetic material block 2 to slide in a direction perpendicular to the flat light window 3. The through hole A limiting boss 202 is provided in 201, and a convex block 203 is provided on the magnetic material block 2, which abuts against one end of the limiting boss 202 away from the outer surface of the flat light window 3. When the convex block 203 abuts against the limiting boss 202, one end of the magnetic material block 2 extends out of the through hole 201. An elastic member 204 is provided in the through hole 201, and the elastic member 204 applies a force to the boss close to the limiting boss 202. An electromagnetic component 205 is provided inside the mounting housing 1, and the electromagnetic component 205 applies a force to the boss away from the limiting boss 202 after being energized, so that the magnetic material block 2 is located in the through hole 201. In one embodiment, the magnetic material block 2 is columnar, the elastic member 204 is a spring, and the spring is sleeved on the outer periphery of the magnetic material block 2, one end of the spring is fixedly connected to the boss, and the other end of the spring is fixedly connected to the inner wall of the through hole 201, and the electromagnetic component 205 is an electromagnetic coil.

[0032] Among them, when the compact fast opening and closing protection device is powered off, the permanent magnet 6 absorbs the magnetic material block 2, so that the protection baffle 5 and the installation shell 1 are stably abutted, avoiding the random shaking of the protection baffle 5 when the device is powered off, and protecting the flat light window 3. When the compact fast opening and closing protection device is powered on, the electromagnetic component 205 applies a force to the magnetic material block 2 away from the outer surface of the installation shell 1, reducing the suction force between the permanent magnet 6 and the magnetic material block 2, avoiding the adsorption force between the permanent magnet 6 and the magnetic material block 2 hindering the opening of the protection baffle 5, and improving the efficiency of the protection opening; the position of the protection baffle 5 is controlled by the driving mechanism 4 to realize the opening and closing of the protection baffle 5.

[0033] like Figure 4 As shown, the driving mechanism 4 includes a slewing support frame 12, a motor 19, a first slewing shaft 10 and a second slewing shaft 16. The support frame 12 is fixed on the mounting housing 1. The motor 19 is fixed on the support frame through a connecting frame 18. The first slewing shaft 10 is installed on one end of the slewing support frame 12 through a bearing 11. The second slewing shaft 16 is installed on the other end of the support frame through a bearing 11. The output shaft of the motor 19 is connected to the first slewing shaft 10. The motor 19 is a high-speed servo motor. The output end of the motor 19 is directly connected to the adapter shaft 21. The adapter shaft 21 is connected to the coupling 22. The coupling 22 is connected to the first slewing shaft 10. The connecting shaft includes a first connecting bracket 8 and a second connecting bracket 17. The first connecting bracket 8 is connected to one end of the first side edge. The second connecting bracket 17 is connected to the other end of the first side edge. The first connecting bracket 8 is fixedly connected to the first slewing shaft 10. The second connecting bracket 17 is fixedly connected to the second slewing shaft 16. When the device is powered on, the servo motor is under the control of its own controller. The output shaft of the servo motor drives the first rotary shaft 10 to rotate forward, reverse and stand still, thereby realizing the opening and closing actions of the protective baffle 5 and stabilizing it in the open state and the closed state.

[0034] In the embodiment of the present application, the driving mechanism 4 further comprises a protective cover 20, which is irradiated on the outer periphery of the motor 19 and the slewing support frame 12. The rotatable connection between the connecting shaft of the protective baffle 5 and the slewing support frame 12 realizes the rotatable connection between the connecting shaft and the mounting housing 1.

[0035] The driving mechanism 4 also includes a controller, a magnet bracket 13, a Hall magnet 14 and a Hall plate 15. The Hall plate 15 is mounted on the end of the slewing support frame 12 connected to the second slewing shaft 16. The Hall magnet 14 is mounted on the magnet bracket 13. The magnet bracket 13 is mounted on the second slewing shaft 16. The Hall plate 15 is used to detect the angular position of the Hall magnet 14. The Hall plate 15 is electrically connected to the controller. The controller controls the speed of the motor 19 and the start and stop of the motor 19 according to the position of the Hall magnet 14. The electrical limit control of the speed of the motor 19 is realized by the Hall element. The position of the Hall magnet 14 can be sensed by the Hall plate 15, thereby sensing the position state of the protective baffle 5, and further controlling the acceleration and deceleration of the motor 19.

[0036] like Figure 5 As shown, the driving mechanism 4 further includes a rotary pressure cover 9, which is located between the first connecting bracket 8 and the rotary support frame 12, and the rotary pressure cover 9 is fixedly connected to the rotary support frame 12. The rotary pressure cover 9 is provided with a first positioning protrusion 91 and a second positioning protrusion 93, and the first positioning protrusion 91 and the second positioning protrusion 93 are circumferentially spaced around the first rotating shaft 10. The first connecting bracket 8 is provided with a stopper 92, and the stopper 92 abuts against the first positioning protrusion 91 when the protective baffle 5 covers the flat light window 3, and the stopper 92 abuts against the second positioning protrusion 93 when the protective baffle 5 is opened and perpendicular to the flat light window 3. The cooperation of the stopper 92, the first positioning protrusion 91 and the second positioning protrusion 93 realizes the mechanical limit of the switch of the protective baffle 5, so as to prevent the protective baffle 5 from rotating too much, or to prevent the protective baffle 5 from damaging the light window.

[0037] When the Hall magnet 14 follows the second rotating shaft 16 for transportation, it can form induction with the Hall plates 15 at different positions. The three Hall plates 15 are arranged in the form of left, middle, and right. When the Hall magnet 14 senses the left Hall plate 5, the stopper 92 of the first connecting bracket 8 is close to the first positioning protrusion 91. When the Hall magnet 14 senses the right Hall plate 5, the stopper 92 of the first connecting bracket 8 is close to the second positioning protrusion 93.

[0038] When powered on, if the Hall magnet 14 senses the Hall plate 5 on the left, the motor will accelerate to the right until the Hall magnet 14 senses the Hall plate 5 in the middle, then the motor will decelerate to the right until the Hall magnet 14 senses the Hall plate 5 on the right, and the motor stops. To prevent the motor from running away, the block 92 of the first connecting bracket 7 is close to the first positioning protrusion 91 to form a mechanical limit. Similarly, when powered on, if the Hall magnet 14 senses the Hall plate 5 on the right, the side motor will have a leftward rotation process of first accelerating and then decelerating.

[0039] When powered on, if the Hall magnet 14 does not sense the Hall plate 5, the motor will move in the opening direction for self-test until it senses one of the three Hall plates, then rotate to the opening state and wait for the next instruction.

[0040] A rubber pad 7 is provided on the side of the second side of the protective baffle 5 facing the flat light window 3. The rubber pad 7 is located around the permanent magnet 6 and is used to abut the abutting side of the mounting shell 1. The rubber pad 7 cushions the collision between the protective baffle 5 and the steel sleeve, thereby protecting the light window.

[0041] The permanent magnets 6 are disposed on both ends of the first side edge of the side surface of the protection baffle 5 facing the flat light window 3 .

[0042] The magnetic material block 2 is a steel block.

[0043] The driving structure of the protection device of the present application is combined with electric limit and mechanical limit to quickly open the protection baffle 5 when it is necessary to perform an observation and detection task, and quickly close the protection baffle 5 after completing the observation task, thereby realizing the rapid opening and closing of the protection baffle 5.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A compact fast opening and closing protection device based on a flat light window, characterized in that: The invention comprises a protective baffle (5) and a driving mechanism (4), wherein the driving mechanism (4) is mounted on a mounting shell (1) of a flat light window (3), the protective baffle (5) is used to cover the flat light window (3), a connecting shaft is provided on a first side edge of the protective baffle (5), the connecting shaft is rotatably mounted on the mounting shell (1), the connecting shaft is connected to an output shaft of the driving mechanism (4), and the driving mechanism (4) drives the protective baffle (5) to rotate around the connecting shaft so that the flat light window (3) approaches or moves away from the flat light window (3); The side of the protective baffle (5) opposite to the first side is a second side. The mounting shell (1) comprises a mounting side and an abutting side, the mounting side and the abutting side are respectively located on opposite sides of the flat light window (3). The driving mechanism (4) is mounted on the mounting side of the mounting shell (1). A ferromagnetic material block (2) is provided on the abutting side of the mounting shell (1). A permanent magnet (6) corresponding to the ferromagnetic material block (2) is provided on the protective baffle (5) near the second side. The permanent magnet (6) is located on the side of the protective baffle (5) facing the flat light window (3). A through hole (201) is provided on the abutting side of the mounting shell (1) for the ferromagnetic material block (2) to slide in a direction perpendicular to the flat light window (3). The through hole (201) is provided on the abutting side of the mounting shell (1). 1) is provided with a limiting boss (202), the magnetic material block (2) is provided with a convex block (203) which abuts against one end of the limiting boss (202) away from the outer surface of the flat light window (3), when the convex block (203) abuts against the limiting boss (202), one end of the magnetic material block (2) extends out of the through hole (201), an elastic member (204) is provided in the through hole (201), the elastic member (204) applies a force to the boss to move closer to the limiting boss (202), an electromagnetic component (205) is provided inside the mounting shell (1), and when the electromagnetic component (205) is energized, it applies a force to the boss to move away from the limiting boss (202), so that the magnetic material block (2) is located in the through hole (201); When the compact quick opening and closing protection device is powered off, the permanent magnet (6) attracts the magnetic material block (2) so that the protective baffle (5) and the mounting shell (1) are stably in contact with each other; when the compact quick opening and closing protection device is powered on, the electromagnetic component (205) applies a force to the magnetic material block (2) away from the outer surface of the mounting shell (1), thereby reducing the suction force between the permanent magnet (6) and the magnetic material block (2), and the driving mechanism (4) controls the position of the protective baffle (5).

2. The compact fast opening and closing protection device based on the flat light window according to claim 1 is characterized in that: The driving mechanism (4) comprises a slewing support frame (12), a motor (19), a first slewing shaft (10) and a second slewing shaft (16); the slewing support frame (12) is fixed on the mounting housing (1); the motor (19) is fixed on the slewing support frame (12); the first slewing shaft (10) is mounted on one end of the slewing support frame (12) via a bearing (11); the second slewing shaft (16) is mounted on the other end of the slewing support frame (12) via a bearing (11); the output shaft of the motor (19) is connected to the first slewing shaft (10); and the motor (19) is a servo motor; The connecting shaft comprises a first connecting bracket (8) and a second connecting bracket (17), the first connecting bracket (8) being connected to one end of the first side, the second connecting bracket (17) being connected to the other end of the first side, the first connecting bracket (8) being fixedly connected to the first rotating shaft (10), and the second connecting bracket (17) being fixedly connected to the second rotating shaft (16).

3. The compact fast opening and closing protection device based on the flat light window according to claim 2 is characterized in that: The driving mechanism (4) further comprises a controller, a magnet bracket (13), a Hall magnet (14) and a Hall plate (15); the Hall plate (15) is mounted on the end of the slewing support frame (12) connected to the second slewing shaft (16); the Hall magnet (14) is mounted on the magnet bracket (13); the magnet bracket (13) is mounted on the second slewing shaft (16); the Hall plate (15) is used to detect the angular position of the Hall magnet (14); the Hall plate (15) is electrically connected to the controller; and the controller controls the rotation speed of the motor (19) and the start and stop of the motor (19) according to the position of the Hall magnet (14).

4. The compact fast opening and closing protection device based on the flat light window according to claim 2 is characterized in that: The driving mechanism (4) further comprises a rotary pressure cover (9), wherein the rotary pressure cover (9) is located between the first connecting bracket (8) and the rotary support bracket (12), wherein the rotary pressure cover (9) and the rotary support bracket (12) are fixedly connected, wherein a first positioning protrusion (91) and a second positioning protrusion (93) are provided on the rotary pressure cover (9), wherein the first positioning protrusion (91) and the second positioning protrusion (93) are circumferentially spaced and distributed around the first rotating shaft (10), wherein a stopper (92) is provided on the first connecting bracket (8), wherein when the protective baffle (5) covers the flat light window (3), the stopper (92) and the first positioning protrusion (91) abut against each other, and when the protective baffle (5) is opened and perpendicular to the flat light window (3), the stopper (92) and the second positioning protrusion (93) abut against each other.

5. The compact fast opening and closing protection device based on the flat light window according to claim 2 is characterized in that: A rubber pad (7) is provided on the side of the second side of the protective baffle (5) facing the flat light window (3); the rubber pad (7) is located around the permanent magnet (6); and the rubber pad (7) is used to abut against the abutting side of the mounting housing (1).

6. The compact fast opening and closing protection device based on the flat light window according to claim 1, characterized in that: The permanent magnets (6) are provided on both ends of the side surface of the protective baffle (5) facing the flat light window (3) corresponding to the first side edge.

7. The compact fast opening and closing protection device based on the flat light window according to claim 1 is characterized in that: The magnetic material block (2) is a steel block.

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