Automatic optical protection device and laser emitting device

Abstract

The present application relates to the technical fields of optical device protection, in particular to an automatic optical protection device and a laser emitting device. The optical protection device comprises a protection head and a trigger assembly; the protection head comprises a protection head shell and a protection assembly; the protection assembly comprises a protection assembly body, an elastic member and a cover member; the protection head shell is provided with a containing cavity for containing an optical output head, a light path channel is formed along the light path direction of the containing cavity, the light path channel is provided with the protection assembly at one end away from the optical output head, and the protection assembly body is provided with a mounting area and a light passing hole; the cover member comprises a cover part, a connecting part and a trigger part, the cover part is arranged at one end of the protection assembly body away from the protection head shell, the connecting part is arranged at one side of the cover part close to the mounting area, and the trigger part is arranged on the connecting part or the cover part; and the elastic member is arranged between the connecting part and the protection assembly body. The problem that the optical output head cannot be automatically protected is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical device protection, in particular to an automatic optical protection device and a laser emitting device. BACKGROUND

[0002] Laser or other light emitting devices usually need to be used with matching lenses or other optical devices, and may need to be switched to match, in the switching process, the output head of the laser and other light emitting devices will be exposed to the outside, so that dust contacts the sensitive parts such as optical lenses. For example, the commonly used output head of the laser has QBH (Quartz Block Head) or QCS (Quartz Collimator System), etc., and the front end face of which has a lens or a quartz crystal. When the laser needs to be matched with different lenses or other optical devices, the output head end face is exposed to the outside during the taking-out process, and the end face crystal or lens is easy to stick with dust, at this time, if the light is emitted, the output head is easy to be burned out. SUMMARY

[0003] In order to solve the problem that the optical output head cannot be automatically protected, the present application provides an automatic optical protection device and a laser emitting device.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme: an automatic optical protection device for matching different lenses or optical devices, characterized in that: the optical protection device comprises a protection head and a trigger assembly; the protection head comprises a protection head shell and a protection assembly;

[0005] The protection assembly comprises a protection assembly body, an elastic member and a covering member, the protection head shell is provided with a containing cavity for containing an optical output head, an optical path channel is formed along the optical path direction of the containing cavity, one end of the optical path channel away from the optical output head is provided with the protection assembly, the protection assembly body is provided with a mounting area and a light passing hole, the light passing hole is communicated with the optical path channel in the protection head shell; the covering member comprises a covering part, a connecting part and a trigger part, the covering part is arranged at one end of the protection assembly body away from the protection head shell, the connecting part is arranged at one side of the covering part close to the mounting area, and the trigger part is arranged on the connecting part or the covering part; the elastic member is arranged between the connecting part and the protection assembly body, the elastic member drives the connecting part and the covering part to move relative to the protection head shell, so that the covering member closes the light passing hole;

[0006] The lens or optical device is provided with a hollow channel with an opening, the trigger assembly is arranged in the hollow channel, when the protective head is connected with the lens or optical device through the opening, the end of the trigger assembly close to the protective assembly is matched with the trigger part to drive the cover part to move away from the light hole.

[0007] Preferably, the protective assembly comprises a mounting sleeve, which is sleeved on the protective assembly to cover the mounting area.

[0008] Preferably, the trigger assembly comprises a fixing member and a trigger member, the fixing member is arranged in the hollow channel, the fixing member is provided with an avoiding channel corresponding to the light path channel, and the trigger member is arranged on the side of the fixing member close to the protective assembly.

[0009] Preferably, the trigger part and the axial direction of the light path channel form a non-perpendicular angle, when the protective head is connected with the lens or optical device, the trigger member is in sliding connection with the trigger part, and the cover part is gradually moved away from the light hole to make the light path channel and the hollow channel communicate.

[0010] Preferably, the number of cover members is at least one, the protective assembly body is provided with an elastic member connecting position, the connecting part is provided with a limiting column on the side close to the protective assembly body, one end of the elastic member is connected with the connecting part through the limiting column, and the other end is connected with the protective assembly body through the elastic member connecting position, and the elastic member is used to provide a pushing force or a pulling force to make the cover member close the light hole.

[0011] Preferably, the number of cover members is two, the cover parts of the two cover members are arranged on the end of the protective assembly body away from the protective head shell, and the elastic member is arranged between the connecting parts of the two cover members, and the elastic member is used to provide a pulling force to make the cover member close the light hole.

[0012] Preferably, the mounting area comprises a groove wall surface perpendicular to the end surface of the protective head shell and a groove bottom surface parallel to the end surface of the protective head shell, the protective assembly further comprises an elastic connecting member, the groove wall surface is provided with a first fixing column on the end close to the groove bottom surface, the connecting part is provided with a second fixing column on the end close to the groove bottom surface, and the elastic connecting member is connected with the first fixing column at one end and connected with the second fixing column at the other end.

[0013] Preferably, a sliding groove is arranged on one side of the connecting part close to the mounting area, and the mounting area is provided with a clamping slide rail corresponding to the sliding groove, the clamping slide rail is matched with the sliding groove, so that the connecting part can drive the covering part to move along the clamping slide rail.

[0014] Preferably, a first accommodating channel is arranged on the mounting sleeve corresponding to the light path channel, and a second accommodating channel is arranged on the mounting sleeve corresponding to the trigger member, and the trigger member is slidably connected with the trigger part through the second accommodating channel.

[0015] The application provides another technical scheme to solve the above technical problems, that is, a laser emitting device, comprising a laser generator, a lens or an optical device and the automatic optical protection device, the automatic optical protection device comprises an optical output head and a protection head, one end of the optical output head is connected with the laser generator, the other end of the optical output head is connected with the protection head, a hollow channel with an opening is arranged on the lens or the optical device, the protection head is further provided with a clamping structure at one end away from the protection assembly, the lens or the optical device is provided with a matching structure matched with the clamping structure, and when the covering part is away from the light transmission hole, the clamping structure can be clamped and connected with the outer surface of the lens or the optical device or the matching structure.

[0016] Compared with the prior art, the automatic optical protection device and the laser emitting device have the following beneficial effects:

[0017] The automatic optical protection device provided by the embodiment of the application is used for adapting to different lenses or optical devices, and the optical protection device comprises a protection head and a trigger assembly.

[0018] The protection assembly comprises a protection assembly body, an elastic member and a covering member, the protection head shell is provided with an accommodating cavity for accommodating the optical output head, a light path channel is formed through the accommodating cavity along the light path direction of the accommodating cavity, one end of the light path channel away from the optical output head is provided with the protection assembly, the protection assembly body is provided with a mounting area and a light transmission hole, the light transmission hole is communicated with the light path channel in the protection head shell, the covering member comprises a covering part, a connecting part and a trigger part, one end of the protection assembly body away from the protection head shell is provided with the covering part, the connecting part is arranged on one side of the covering part close to the mounting area, and the trigger part is arranged on the connecting part or the covering part, the elastic member is arranged between the connecting part and the protection assembly body, the elastic member drives the connecting part and the covering part to move relative to the protection head shell, so that the covering member can close the light transmission hole.

[0019] The hollow channel with the opening is opened on the lens or the optical device, the trigger assembly is arranged in the hollow channel, when the protective head is detachably connected with the lens or the optical device through the opening away from the one end of the optical output head, the one end of the trigger assembly close to the protective assembly can be matched with the trigger part to drive the cover part to move away from the light transmission hole. The automatic optical protection device can be well adapted to the lenses or optical devices in different fields, and can also protect the optical fiber interface inside the light path channel.

[0020] The embodiment of the application also provides a laser emitting device, which has the same beneficial effects as the automatic optical protection device, and details are not repeated here.

DRAWINGS

[0021] Figure 1 is an exploded view of the optical protection device provided by the first embodiment of the application.

[0022] Figure 2 is Figure 1 is an enlarged view of the partial area.

[0023] Figure 3 is a schematic view of the cooperation of the optical protection device and the lens or the optical device.

[0024] Figure 4 is a structural schematic view of the mounting sleeve of the optical protection device provided by the first embodiment of the application.

[0025] Figure 5 is a structural schematic view of the trigger assembly of the optical protection device provided by the first embodiment of the application.

[0026] Figure 6 is a structural schematic view of the cover part of the optical protection device provided by the first embodiment of the application.

[0027] Figure 7 is a top view of the optical protection device provided by the first embodiment of the application.

[0028] Figure 8a is a top view of another optical protection device provided by the first embodiment of the application.

[0029] Figure 8b is Figure 8a a structural schematic view.

[0030] Figure 9a is a top view of another optical protection device provided by the first embodiment of the application.

[0031] Figure 9b is Figure 9a a structural schematic view.

[0032] Figure 10 is Figure 9b Enlarged view of a partial area.

[0033] Brief Description of the Drawings:

[0034] 10, optical protection device; 20, lens or optical device;

[0035] 1, optical output head; 2, protection head; 3, trigger assembly;

[0036] 21, protection head housing; 22, protection assembly; 31, fixing member; 32, trigger member;

[0037] 201, hollow channel; 202, opening; 211, light path channel; 212, light passing hole; 213, mounting area; 214, protection assembly body; 215, first fixing column; 216, clamping sliding rail; 221, elastic member; 222, covering member; 223, mounting sleeve; 224, elastic connecting member; 311, avoiding channel;

[0038] 2131, groove wall surface; 2132, groove bottom surface; 2141, elastic member connecting position; 2221, covering part; 2222, connecting part; 2223, trigger part; 2224, limiting column; 2225, second fixing column; 2226, sliding groove; 2231, first avoiding channel; 2232, second avoiding channel.

DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0040] In the embodiments provided in the present application, it should be understood that “B corresponding to A” means that B is associated with A, and B can be determined according to A. However, it should also be understood that the determination of B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0041] It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in one embodiment” or “in an embodiment” appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0042] In various embodiments of the present application, it should be understood that the magnitude of the sequence number of the above-mentioned processes does not mean the inevitable sequence of execution, and the execution sequence of the processes should be determined according to their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0043] The flow diagrams and the block diagrams in the drawings are illustrations of architectures, functional processes, and operations that can be implemented in systems, methods, and computer program products according to various embodiments of the present application. In this regard, each block in the flow diagrams or block diagrams can represent a module, a program segment, or a portion of code that comprises one or more executable instructions for implementing the specified functions. It should also be noted that, in some alternative implementations, the functions noted in the blocks can occur in a different order than that shown in the drawings. For example, two blocks that are shown in succession can actually be executed substantially in parallel, or they can be executed in reverse order, depending on the involvement of the functions. It should be particularly noted that each block in the block diagrams and / or flow diagrams, and the combination of blocks in the block diagrams and / or flow diagrams, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0044] Laser or other light emitting devices often need to be used with matching lenses or other optical devices, and it is possible to need to switch the matching, in the switching process, the output head of the light emitting device such as laser will be exposed to the outside, so that dust contacts the sensitive parts such as optical lenses. For example, the commonly used output head of laser has QBH (Quartz Block Head) or QCS (Quartz Collimator System) and the like, and the front end face of which has a lens or a quartz crystal, when the laser needs to adapt to different lenses or other optical devices, the output head is taken out in the process, the end face is exposed to the outside, and the end face crystal or lens is easy to stick dust, at this time, if the light is emitted, the output head is easy to be burned out.

[0045] Please combine Figures 1 to 3 The first embodiment of the present application provides an automatic optical protection device 10 for adapting to different lenses or optical devices 20, and the optical protection device 10 comprises a protection head 2 and a trigger assembly 3; the protection head 2 comprises a protection head shell 21 and a protection assembly 22;

[0046] The protective component 22 includes a protective component body 214, an elastic element 221, and a cover 222. The protective head housing 21 has a receiving cavity for accommodating the optical output head 1. An optical path channel 211 is formed by passing through the optical path direction of the receiving cavity. The protective component 22 is disposed at the end of the optical path channel 211 away from the optical output head 1. The protective component body 214 has a mounting area 213 and a light-transmitting hole 212. The light-transmitting hole 212 communicates with the optical path channel 211 in the protective head housing 21. The cover 222 includes a cover portion 2221, a connecting portion 2222, and a trigger portion 2223. The cover portion 2221 is disposed at the end of the protective component body 214 away from the protective head housing 21. The connecting portion 2222 is disposed on the side of the cover portion 2221 near the mounting area 213. The trigger portion 2223 is disposed on the connecting portion 2222 or the cover portion 2221. It should be noted that the trigger part 2223 can be disposed on the connecting part 2222 or on the covering part 2221, and can be a protruding structure or a recessed structure, the specific shape of which depends on the trigger component 3. For example, as shown... Figure 2 As shown, the end of the connecting part 2222 near the light-transmitting hole 212 is recessed towards the mounting area 213 to form a trigger part 2223; the elastic member 221 is disposed between the connecting part 2222 and the protective component body 214, and the elastic member 221 drives the connecting part 2222 and the covering part 2221 to move relative to the protective head housing 21 so that the covering member 222 closes the light-transmitting hole 212;

[0047] A hollow channel 201 with an opening 202 is provided on the lens or optical device 20. The trigger component 3 is disposed in the hollow channel 201. When the end of the protective head 2 away from the optical output head 1 passes through the opening 202 and is detachably connected to the lens or optical device 20, the end of the trigger component 3 near the protective component 22 can cooperate with the trigger part 2223 to drive the cover part 2221 to move away from the light-transmitting hole 212.

[0048] Understandably, in this embodiment, the end of the receiving cavity furthest from the protective component can be connected to the optical device that needs protection, and the end of the optical output head 1 closest to the protective component 22, i.e., the output end of the optical output head 1 is a fiber optic connector. It should be understood that the automatic optical protection device 10 provided in this embodiment can automatically protect the fiber optic connector on the optical output head 1. Specifically, the optical path channel 211 inside the protective head housing 21 is used to accommodate the fiber optic connector for laser transmission, while the elastic element 221 provides a restoring force. When the protective head 2 and the lens or optical device 20 are not connected, the elastic element 221 disposed between the connecting part 2222 and the protective component body 214 provides a force, forcing the covering part 2221 to cover the light-transmitting hole 212 that connects the optical path channel 211 to the outside. Therefore, at this time, the fiber optic connector is protected by the covering part 2221 and is not exposed to the outside of the protective head housing 21. It should be noted that the elastic element 221 is not limited to a spring, a torsion spring, etc.

[0049] Furthermore, the trigger component 3 provided in this embodiment is fixed inside the hollow channel 201 of the lens or optical device 20. Optionally, the trigger component 3 can be detachably connected to the inner wall of the hollow channel 201, or it can be integrally formed with the inner wall of the hollow channel 201. It should be understood that the trigger component 3 can be adapted to different types of lenses or optical devices 20. When the end of the protective head 2 away from the optical output head 1 passes through the opening 202 and connects to the lens or optical device 20, the installation of the protective head 2 and the lens or optical device 20 is completed. At this time, the end of the trigger component 3 near the protective component 22 contacts the trigger part 2223 and drives the connecting part 2222 to move. After the connecting part 2222 moves, it drives the covering part 2221 to move together, so that the light-transmitting hole 212 that connects the optical path channel 211 to the outside is exposed, and the movement of the connecting part 2222 causes the elastic member 221 to be compressed or stretched. Furthermore, after the laser is emitted from the fiber optic interface, the laser can first pass through the optical path channel 211 and then enter the hollow channel 201. At this time, the optical protection device 10 can complete the laser transmission.

[0050] It should be noted that the protective component body 214 can be a part that is machined and extended from the protective head housing 21, or it can be a part that is separately assembled and installed on the protective head housing.

[0051] Furthermore, after the optical protection device 10 completes the laser transmission, the user can disconnect the protective head 2 from the lens or optical device 20. At this time, the end of the trigger component 3 near the protection component 22 is released from contact with the trigger part 2223. Specifically, in one embodiment, the elastic member 221 disposed between the connecting part 2222 and the protective component body 214 returns from a stretched state to a normal state. The elastic member 221 provides a restoring force, which forces the connecting part 2222 to move. After the connecting part 2222 moves, it drives the covering part 2221 to move together, so that the light-transmitting hole 212 that connects the optical path channel 211 to the outside is blocked by the covering part 2221. Therefore, at the instant the end of the trigger component 3 near the protection component 22 is released from contact with the trigger part 2223, the covering part 2221 can immediately close the light-transmitting hole 212 under the action of the elastic restoring force of the elastic member 221, preventing the optical path channel 211 from connecting with the outside, thereby protecting the optical interface.

[0052] It should be understood that the optical protection device 10 provided in this embodiment can be applied to different lenses or optical devices 20. Specifically, lenses or optical devices 20 typically have a hollow channel 201 inside. The function of the hollow channel 201 is to allow laser light to pass through, and a lens group is provided inside the hollow channel 201. When the laser light is output from the fiber optic interface, it can be transmitted to the hollow channel 201 through the optical path channel 211, and then focused and emitted after passing through the lens group inside the hollow channel 201. The trigger component 3 in this embodiment can be installed inside the hollow channel 201, and the protective head housing 21 can be adapted to lenses or optical devices 20 in any field, having wide adaptability. When the protective head housing 21 is connected to the lens or optical device 20, the trigger component 3 can cooperate with the connecting part 2222 to drive the cover part 2221 to move and connect the optical path channel 211 and the hollow channel 201, thereby enabling the automatic optical protection device 10 to complete the laser transmission work. Furthermore, when the triggering device can be disengaged from the connecting part 2222, the covering part 2221 can immediately seal the light-transmitting hole 212, preventing the optical path channel 211 from communicating with the outside world, thereby protecting the fiber optic interface. Therefore, the automatic optical protection device 10 can be well adapted to lenses or optical devices 20 in different fields, whether applied to laser obstacle removal, laser cutting, laser welding, etc., and can also protect the fiber optic interface in the optical path channel 211.

[0053] It should be noted that the light-transmitting aperture of existing optical output heads is generally close to the lens or optical element inside the lens. To enable the automatic optical protection device 10 provided in this embodiment to be compatible with different lenses or optical devices, the thickness of the covering portion 2221 covering the light-transmitting aperture 212 is relatively thin in this embodiment, and the distance between the fiber optic interface and the light-transmitting aperture 212 is relatively short, thereby allowing the laser emitted from the fiber optic interface to quickly pass through the light-transmitting aperture and enter the hollow channel. That is, the automatic optical protection device 10 provided in this embodiment can be compatible with lenses or optical devices in different fields.

[0054] Please continue to combine Figures 1 to 3 In one possible implementation, the protective component 214 includes a mounting sleeve 223. The mounting area 213 includes a groove wall surface 2131 perpendicular to the end face of the protective head housing 21 and a groove bottom surface 2132 parallel to the end face of the protective head housing. The mounting sleeve 223 is fitted onto the groove bottom surface 2132 to enclose the mounting area 213. It should be understood that the mounting area 213 is formed along its axial direction from the end of the protective head housing 21 near the protective component 22 towards the end near the optical output head 1. The surface of the mounting area 213 is "L"-shaped or wedge-shaped. Specifically, the end face of the mounting area 213 perpendicular to the protective head housing 21 is the groove wall surface 2131, and the end face parallel to the protective head housing 21 is the groove bottom surface 2132. One of the functions of the mounting area 213 is to accommodate the protective component 22. Furthermore, the mounting sleeve 223 fitted onto the mounting area 213 can protect the protective component 22 within the mounting area 213. It should be noted that the inner diameter of the hollow channel 201 is usually matched with the outer diameter of the protective head housing 21. When the protective head 2 is connected to the lens or optical device 20, the mounting sleeve 223 will be inserted into the hollow channel 201 along with the protective head housing 21. Therefore, the diameter of the mounting sleeve 223 needs to be equal to or smaller than the outer diameter of the protective head housing 21 to avoid the mounting sleeve 223 obstructing the protective head housing 21 from entering the hollow channel 201.

[0055] As one possible implementation, the protective component 22 disposed on the mounting area 213 can be directly inserted into the hollow channel 201 along with the protective head housing 21. This implementation eliminates the need for a mounting area 213 housing, making the protective head 2 lighter.

[0056] Specifically, please combine them together. Figure 5The triggering component 3 includes a fixing member 31 and a triggering member 32. The fixing member 31 is disposed within the hollow channel 201, and a clearance channel 311 is provided on the fixing member 31 corresponding to the optical path channel 211. The triggering member 32 is disposed on the side of the fixing member 31 near the protective component 22. It should be understood that the general structure of lenses or optical devices 20 in different fields will be different. For example, in the field of laser obstacle removal, the lens or optical device 20 is a laser emitting head. In the field of laser welding, the lens or optical device 20 is a laser welding head. In the field of laser cutting, the lens or optical device 20 is a laser cutting head. The triggering component 3 provided in this embodiment is adapted to the above-mentioned different lenses or optical devices 20. Specifically, the fixing member 31 is disposed within the hollow channel 201 of different lenses or optical devices 20. The fixing member 31 can be detachably connected to the inner wall of the hollow channel 201 by means of threaded connection or snap-fit ​​connection. The fixing member 31 can also be integrally formed with the inner wall of the hollow channel 201 by means of adhesive connection or welding. It should be noted that, since the protective head housing 21 enters the hollow channel 201, the end of the trigger 32 away from the fixing member 31 can contact the trigger part 2223. Therefore, after the fixing member 31 is set in the hollow channel 201, the distance between the fixing member 31 and the opening 202 will be less than the length of the protective head housing 21. Furthermore, the optical fiber interface, optical path channel 211, the light-transmitting hole 212 of the protective head housing 21, the hollow channel 201, and the avoidance channel 311 share the same axis. Therefore, the laser output from the optical fiber interface will sequentially pass through the optical path channel 211, the hollow channel 201, and the avoidance channel 311 before being output.

[0057] Furthermore, please combine Figure 1 , Figure 2 , Figure 3 and Figure 6 The trigger portion 2223 forms a non-perpendicular angle with the axial direction of the optical path channel 211. When the protective head 2 is connected to the lens or optical device 20, the trigger member 32 slides with the trigger portion 2223, and drives the cover portion 2221 to move along the radial direction of the light-transmitting hole 212, so that the cover portion 2221 gradually moves away from the light-transmitting hole until the optical path channel 211 and the hollow channel 201 are connected. It should be understood that when the protective head housing 21 enters the hollow channel 201, the trigger member 32 will contact the trigger portion 2223, and the shape of the trigger member 32 is adapted to the shape of the trigger portion 2223. For example, Figure 5 and Figure 6The trigger element 32 shown has a tapered cross-section along the axial direction of the protective head housing 21, while the trigger portion 2223 is a structure formed by the connection portion 2222 being recessed towards the side away from the light-transmitting hole 212, and this structure presents an inclined surface structure. When the protective head 2 is inserted into the hollow channel 201 and connected to the lens or optical device 20, the tapered inclined surface of the trigger element 32 first contacts the wedge-shaped cross-section of the trigger portion 2223. Furthermore, the trigger portion 2223 is continuously subjected to force, causing the connection portion 2222 to move away from the light-transmitting hole 212 of the optical path channel 211, thereby driving the covering portion 2221 to move along the radial direction of the optical path channel 211 and gradually move away from the light-transmitting hole 212 of the optical path channel 211 until the covering portion 2221 completely exposes the light-transmitting hole 212 of the optical path channel 211. At this time, the connection between the protective head 2 and the lens or optical device 20 is completed. It should be understood that at this time, the optical path channel 211 and the hollow channel 201 are connected, and the laser can be output from the optical fiber interface and enter the interior of the hollow channel 201 through the light-transmitting hole 212 of the optical path channel 211.

[0058] When the protective head 2 and the lens or optical device 20 are disconnected, the elastic member 221 provides a restoring force. This restoring force forces the connecting part 2222 to move towards the light-transmitting hole 212 of the optical path channel 211. This, in turn, causes the covering part 2221 to move radially along the optical path channel 211 and gradually approach the light-transmitting hole 212 until the covering part 2221 completely covers the light-transmitting hole 212. At this point, the elastic member 221 returns to its normal state. It should be understood that the covering part 222 can be implemented in various ways to close the light-transmitting hole 212.

[0059] Please combine Figure 2 , Figure 6 , Figure 7 As shown in Figure 8, in one possible implementation, the number of cover members 222 is at least one. Specifically, in one embodiment, the protective component body 214 is provided with an elastic member connection position 2141, and the connection portion 2222 is provided with a limiting post 2224 on the side near the protective component body 214. One end of the elastic member 221 passes through the limiting post 2224 and connects to the connection portion 2222, and the other end passes through the elastic member connection position 2141 and connects to the protective component body 214. The elastic member 221 is used to provide a pushing force or a pulling force to make the cover member 222 close the light transmission hole 212.

[0060] It should be understood that the connecting part 2222 is disposed on the groove wall surface 2131 of the mounting area 213 but with a gap between it and the groove wall surface 2131, so that the connecting part 2222 can move relative to the groove wall surface 2131. The elastic element 221 is disposed between the connecting part 2222 and the protective component body 214. The function of the limiting post 2224 and the elastic element connection position 2141 is to serve as the connection point of the elastic element 221. Its shape can be a groove, and it can also limit the elastic element 221 to prevent the elastic element 221 from slipping when the connecting part 2222 moves. In the normal state, the elastic element 221 is neither stretched nor compressed. At this time, the covering part 2221 just closes the light-transmitting hole 212 of the optical path channel 211. In addition, when the protective head housing 21 shakes, the elastic element 221 will also provide radial and axial forces to limit the movement of the connecting part 2222 to prevent the covering part 2221 from shaking. When the trigger 32 contacts the trigger part 2223, in one embodiment, such as... Figure 7 Similarly, when the trigger 32 slides against the trigger portion 2223, the connecting portion 2222 will move away from the protective component body 214, and the elastic member 221 will be stretched. In one embodiment, as shown in Figure 8, when the trigger 32 slides against the trigger portion 2223, the connecting portion 2222 will move closer to the protective component body 214, and the elastic member 221 will be compressed. In both of these embodiments, the connecting portion 2222 ultimately moves, thereby causing the covering portion 2221 to move as well, exposing the light-transmitting hole 212 of the optical path channel 211.

[0061] Furthermore, when the trigger 32 and the trigger part 2223 are no longer in contact, the elastic member 221 provides a pushing or pulling force to make the connecting part 2222 move toward the light-transmitting hole 212 of the optical path channel 211, thereby driving the covering part 2221 to move along the radial direction of the optical path channel 211 and gradually approach the light-transmitting hole 212 of the optical path channel 211 until the covering part 2221 completely covers the light-transmitting hole 212 of the optical path channel 211. At this time, the elastic member 221 returns to the normal state.

[0062] Please combine Figure 2 , Figure 6As shown in Figure 9, in another possible embodiment, there are two cover members 222. The covering portions 2221 of both cover members 222 are located at the end of the protective component body 214 away from the protective head housing 21. An elastic member 221 is provided between the connecting portion 2222 of one cover member 222 and the connecting portion 2222 of the other cover member 222. The elastic member 221 is used to provide tension to make the cover member 222 close the light transmission hole 212. It can be understood that when there are two cover members 222, an elastic member 221 is still provided between each cover member 222 and the protective component body 214 (not shown in the figure in this embodiment). The main function of this elastic member 221 is to act as a bridge connecting the cover member 222 and the protective head housing 21, so that the cover member 222 is connected to the protective head housing 21. An elastic element 221 can be sandwiched between the connecting parts of the two cover elements 222. When the elastic element 221 is in a stretched state, the tension provided by the elastic element 221 forces the two cover elements 222 to move closer together, causing the covering portions 2221 of the two cover elements 222 to close and seal the light-transmitting hole 212. When the trigger element 32 contacts the trigger portion 2223, the two cover elements 222 will move away from each other until the light-transmitting hole 212 of the optical path channel 211 is exposed. When the trigger element 32 and the trigger portion 2223 are released from contact, the tension provided by the elastic element 221 will again force the two cover elements 222 to move closer together to seal the light-transmitting hole 212.

[0063] Furthermore, when the protective head 2 and the lens or optical device 20 are not connected, the radial and axial forces provided by the elastic member 221 alone may not be sufficient to restrict the movement trajectory of the cover member 222. Therefore, this embodiment also provides a more stable structure to enhance the restriction of the movement trajectory of the cover member 222.

[0064] Please combine Figure 2 , Figure 5 and Figure 9aIn one possible implementation, the protective component 22 further includes an elastic connector 224. A first fixing post 215 is provided at one end of the groove wall surface 2131 near the groove bottom surface 2132, and a second fixing post 2225 is provided at one end of the connecting portion 2222 near the groove bottom surface 2132. One end of the elastic connector 224 is connected to the first fixing post 215, and the other end is connected to the second fixing post 2225. It should be understood that the elastic connector 224 provides a continuous tensile force, which forces the cover 222 to always be subjected to a force near the groove bottom surface 2132. When the trigger portion 2223 on the connecting portion 2222 contacts the trigger 32, the connecting portion 2222 is always subjected to a force near the groove bottom surface 2132, and thus the cover 2221 will move against the end face of the protective head housing 21. It should be understood that the elastic connector 224 restricts the movement trajectory of the cover 222, making the movement trajectory of the cover 222 more stable when the protective head 2 and the lens or optical device 20 are disassembled or connected.

[0065] Please combine them together Figure 9b and Figure 10 In another possible implementation, the connecting portion 2222 is provided with a groove 2226 on the side near the mounting area 213, and the mounting area 213 is provided with a snap-fit ​​slide rail 216 corresponding to the groove 2226. Specifically, the connecting portion 2222 is provided with a groove 2226 on the side near the groove wall 2131, and the groove wall 2131 protrudes to form the snap-fit ​​slide rail 216 corresponding to the groove 2226. The snap-fit ​​slide rail 216 cooperates with the groove 2226 so that the connecting portion 2222 can drive the covering portion 2221 to move along the snap-fit ​​slide rail 216. It should be understood that when the trigger portion 2223 on the connecting portion 2222 contacts the trigger member 32, the connecting portion 2222 will move along the snap-fit ​​slide rail 216 due to the limitation of the snap-fit ​​slide rail 216, while the distance between the covering portion 2221 and the end face of the protective head housing 21 remains unchanged.

[0066] In another possible implementation, the two implementation methods described above can also be used in combination, which will not be elaborated on here.

[0067] Furthermore, please refer to the following: Figure 4 and Figure 6 The mounting sleeve 223 has a first clearance channel 2231 corresponding to the optical path channel 211, and a second clearance channel 2232 corresponding to the trigger 32. The trigger 32 passes through the second clearance channel 2232 and is slidably connected to the trigger part 2223. It should be understood that the function of the first clearance channel 2231 is to allow the laser to pass through, while the second clearance channel 2232 is for the trigger 32 to pass through. Therefore, the diameter of the first channel should be greater than or equal to the diameter of the light-transmitting hole 212.

[0068] Please combine Figure 2 andFigure 3 The second embodiment of the present invention also provides a laser emitting device, including a laser generator, a lens or optical device 20 and the above-mentioned automatic optical protection device 10. The automatic optical protection device 10 includes an optical output head 1 and a protection head 2. One end of the optical output head 1 is connected to the laser generator and the other end is connected to the protection head 2. A hollow channel 201 with an opening 202 is opened on the lens or optical device 20. The end of the protection head 2 away from the optical output head 1 can pass through the opening 202 and be detachably connected to the lens or optical device 20.

[0069] Understandably, the automatic optical protection device 10 in this embodiment has wide adaptability. Whether applied in laser obstacle removal, laser cutting, laser welding or other fields, the automatic optical protection device 10 can be well adapted to lenses or optical devices 20 in different fields, and can also protect the fiber optic interface in the optical path channel 211.

[0070] Furthermore, the laser output head 2 is provided with a snap-fit ​​structure at one end near the laser transmission line 1, and the lens or optical device is provided with a mating structure that cooperates with the snap-fit ​​structure. When the laser output head 2 is inserted into the hollow channel 201, the trigger component 3 is in contact with the trigger part 2223 at one end near the protection component 22, and drives the connecting part 2222 to move. After the connecting part 2222 moves, it drives the covering part 2221 to move together, so that the light-transmitting hole 212 is exposed. That is, after the covering part 2221 moves away from the light-transmitting hole 212, the snap-fit ​​structure can be snap-fitted to the surface or mating structure of the laser output device 20 to enhance the connection stability between the laser output head 2 and the laser output device 20.

[0071] The above provides a detailed description of an automatic optical protection device and a laser emitting device disclosed in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic optical protection device for adapting to different lenses or optical devices, characterized in that: The optical protection device includes a protection head and a triggering assembly; the protection head includes a protection head housing and a protection assembly. The protective assembly includes a protective assembly body, an elastic element, and a cover. The protective head housing has a receiving cavity for accommodating the optical output head, with an optical path channel extending through the cavity. The protective assembly is located at the end of the optical path channel away from the optical output head. The protective assembly body has a mounting area and a light-transmitting hole, which communicates with the optical path channel within the protective head housing. The cover includes a cover portion, a connecting portion, and a trigger portion. The cover portion is located at the end of the protective assembly body away from the protective head housing. The connecting portion is located on the side of the cover portion near the mounting area. The trigger portion is located on the connecting portion or the cover portion. The elastic element is located between the connecting portion and the protective assembly body, and it moves the connecting portion and the cover portion relative to the protective head housing to close the light-transmitting hole. The trigger portion forms a non-perpendicular angle with the axial direction of the optical path channel. The lens or optical device has a hollow channel with an opening. The triggering component is disposed within the hollow channel. The triggering component includes a fixing member and a triggering member. The fixing member is disposed within the hollow channel and has an avoidance channel corresponding to the optical path channel. The triggering member is disposed on the side of the fixing member closer to the protective component. When the end of the protective head away from the optical output head passes through the opening and is detachably connected to the lens or optical device, the triggering member at the end of the triggering component closer to the protective component slides and connects with the triggering part, thereby moving the covering part away from the light-transmitting hole to connect the optical path channel and the hollow channel.

2. The automatic optical protection device as described in claim 1, characterized in that: The protective component includes a mounting sleeve that is fitted onto the protective component to cover the mounting area.

3. The automatic optical protection device as described in claim 1, characterized in that: The number of the cover is at least one. The protective component body is provided with an elastic element connection position. A limit post is provided on the side of the connection part near the protective component body. One end of the elastic element passes through the limit post and is connected to the connection part. The other end passes through the elastic element connection position and is connected to the protective component body. The elastic element is used to provide a pushing force or a pulling force to make the cover close the light-transmitting hole.

4. The automatic optical protection device as described in claim 1, characterized in that: The number of the cover members is two, and the covering part of each of the two cover members is disposed at the end of the protective component body away from the protective head housing. An elastic member is disposed between the connecting part of one cover member and the connecting part of the other cover member. The elastic member is used to provide tension so that the cover member closes the light-transmitting hole.

5. The automatic optical protection device as described in claim 1, characterized in that: The installation area includes a groove wall surface perpendicular to the end face of the protective head housing and a groove bottom surface parallel to the end face of the protective head housing. The protective assembly also includes an elastic connector. A first fixing post is provided at one end of the groove wall surface near the groove bottom surface, and a second fixing post is provided at one end of the connecting part near the groove bottom surface. One end of the elastic connector is connected to the first fixing post, and the other end is connected to the second fixing post.

6. The automatic optical protection device as described in claim 1, characterized in that: A groove is provided on the side of the connecting part near the installation area, and a snap-fit ​​slide rail is provided in the installation area corresponding to the groove. The snap-fit ​​slide rail cooperates with the groove so that the connecting part can drive the covering part to move along the snap-fit ​​slide rail.

7. The automatic optical protection device as described in claim 2, characterized in that: The mounting sleeve has a first clearance channel corresponding to the optical path channel and a second clearance channel corresponding to the trigger element. The trigger element passes through the second clearance channel and is slidably connected to the trigger part.

8. A laser emitting device, characterized in that: The device includes a laser generator, a lens or optical device, and an automatic optical protection device as described in any one of claims 1-7. The automatic optical protection device includes an optical output head and a protective head. One end of the optical output head is connected to the laser generator, and the other end is connected to the protective head. A hollow channel with an opening is formed on the lens or optical device. A snap-fit ​​structure is provided at the end of the protective head away from the protective component. A mating structure that cooperates with the snap-fit ​​structure is provided on the lens or optical device. When the covering part is away from the light-transmitting hole, the snap-fit ​​structure is snap-fitted to the outer surface of the lens or optical device or the mating structure.

Images