Automatic optical protection device and laser emission device

Abstract

The invention relates to the technical field 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 piece and a covering piece, a containing cavity used for containing the optical output head is formed in the protection head shell, a light path channel is formed in the light path direction of the containing cavity, the protection assembly is arranged at the end, away from the optical output head, of the light path channel, and the protection assembly body is provided with an installation area and a light through hole; the covering piece comprises a covering part, a connecting part and a triggering part, the covering part is arranged at one end, away from the protection head shell, of the protection assembly body, the connecting part is arranged on one side, close to the mounting area, of the covering part, and the triggering part is arranged on the connecting part or the covering part; the elastic piece 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 invention relates to the technical field of optical device protection, and in particular to an automatic optical protection device and a laser emitting device. [Background technology]

[0002] Lasers or other light-emitting devices usually need to be used with matching lenses or other optical devices, and may need to be switched. During the switching process, the output head of the laser or other light-emitting device will be exposed to the outside world, allowing dust to contact sensitive parts such as optical lenses. For example, the commonly used output heads of lasers are QBH

[0003] (Quartz Block Head) or QCS (Quartz Collimator System), etc., have lenses or quartz crystals on their front ends. When the laser needs to be adapted to different lenses or other optical devices, the output head end face is exposed to the outside during the removal process, and the end face crystal or lens is prone to dust. If light is emitted at this time, it is easy to burn the output head. [Summary of the invention]

[0004] In order to solve the problem that the optical output head cannot be automatically protected, the present invention provides an automatic optical protection device and a laser emitting device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic optical protection device, used to adapt to 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;

[0006] The protection component comprises a protection component body, an elastic member and a cover member. A housing cavity for accommodating an optical output head is provided in the protection head housing, and an optical path channel is formed by penetrating along the optical path direction of the housing cavity. The protection component is provided at one end of the optical path channel away from the optical output head. A mounting area and a light through hole are provided on the protection component body, and the light through hole communicates with the optical path channel in the protection head housing. The cover member comprises a cover part, a connection part and a trigger part. The cover part is provided at one end of the protection component body away from the protection head housing, and the connection part is provided on one side of the cover part close to the mounting area. The trigger part is provided on the connection part or the cover part. The elastic member is provided between the connection part and the protection component body, and the elastic member drives the connection part and the cover part to move relative to the protection head housing, so that the cover member closes the light through hole.

[0007] A hollow channel with an opening is provided on the lens or optical device, and the trigger component is disposed in the hollow channel. When the end of the protection head away from the optical output head passes through the opening to be detachably connected to the lens or optical device, the end of the trigger component close to the protection component can cooperate with the trigger part to drive the covering part to move so that the covering part is away from the light-through hole.

[0008] Preferably, the protection component comprises a mounting sleeve, and the mounting sleeve is sleeved on the protection component to cover the mounting area.

[0009] Preferably, the trigger component includes a fixing member and a trigger member, the fixing member is arranged in the hollow channel, an avoidance channel is arranged on the fixing member corresponding to the optical path channel, and the trigger member is arranged on a side of the fixing member close to the protection component.

[0010] Preferably, the triggering part of the triggering member forms a non-vertical angle with the axial direction of the optical path channel; when the protective head is connected to the lens or optical device, the triggering member is slidably connected to the triggering part and drives the covering part to gradually move away from the light hole so that the optical path channel and the hollow channel are connected.

[0011] Preferably, there is at least one covering member, an elastic member connecting position is provided on the protection component body, a limiting column is provided on the side of the connecting portion close to the protection component body, one end of the elastic member passes through the limiting column to be connected to the connecting portion, and the other end passes through the elastic member connecting position to be connected to the protection component body, and the elastic member is used to provide a thrust or a pull force to enable the covering member to close the light hole.

[0012] Preferably, there are two covering members, the covering portions of the two covering members are both arranged at one end of the protection component body away from the protection head shell, and an elastic member is arranged between the connecting portion of one covering member and the connecting portion of the other covering member, and the elastic member is used to provide a pulling force so that the covering members can close the light through hole.

[0013] Preferably, the installation area includes a groove wall surface perpendicular to the end face of the protective head shell and a groove bottom surface parallel to the end face of the protective head shell, and the protection component also includes an elastic connecting member, a first fixing column is provided at one end of the groove wall surface close to the groove bottom surface, a second fixing column is provided at one end of the connecting portion close to the groove bottom surface, one end of the elastic connecting member is connected to the first fixing column, and the other end is connected to the second fixing column.

[0014] Preferably, a slide groove is provided on one side of the connecting portion close to the installation area, and a snap-in slide rail is provided in the installation area corresponding to the slide groove, and the snap-in slide rail cooperates with the slide groove so that the connecting portion can drive the covering portion to move along the snap-in slide rail.

[0015] Preferably, a first make way channel is opened on the installation sleeve corresponding to the optical path channel, and a second make way channel is opened on the installation sleeve corresponding to the trigger member, and the trigger member passes through the second make way channel to be slidably connected with the trigger part.

[0016] In order to solve the above technical problems, the present invention provides another technical solution as follows: a laser emitting device, comprising a laser generator, a lens or an optical device and the above automatic optical protection device, wherein the automatic optical protection device comprises an optical output head and a protection head, wherein one end of the optical output head is connected to the laser generator, and the other end is connected to the protection head, a hollow channel with an opening is provided on the lens or the optical device, an end of the protection head away from the protection component is further provided with a snap-fit ​​structure, and a matching structure matching with the snap-fit ​​structure is provided on the lens or the optical device, and when the covering portion is away from the light-through hole, the snap-fit ​​structure can be snap-fitted with the outer surface of the lens or the optical device or the matching structure.

[0017] Compared with the prior art, the automatic optical protection device and laser emitting device provided by the present invention have the following beneficial effects:

[0018] An automatic optical protection device provided by an embodiment of the present invention is used to adapt to different lenses or optical devices. The optical protection device includes a protection head and a trigger assembly; the protection head includes a protection head shell and a protection assembly;

[0019] The protection component includes a protection component body, an elastic member and a cover member. A housing cavity for accommodating the optical output head is provided in the protection head housing, and an optical path channel is formed by penetrating along the optical path direction of the housing cavity. The protection component is provided at one end of the optical path channel away from the optical output head. The protection component body is provided with an installation area and a light through hole, and the light through hole is communicated with the optical path channel in the protection head housing; the cover member includes a cover part, a connecting part and a trigger part. The cover part is provided at one end of the protection component body away from the protection head housing, the connecting part is provided at one side of the cover part close to the installation area, and the trigger part is provided on the connecting part or the cover part; the elastic member is provided between the connecting part and the protection component body, and the elastic member drives the connecting part and the cover part to move relative to the protection head housing, so that the cover member closes the light through hole;

[0020] A hollow channel with an opening is provided on the lens or optical device, and a trigger assembly is arranged in the hollow channel. When the end of the protection head away from the optical output head passes through the opening and is detachably connected to the lens or optical device, the end of the trigger assembly close to the protection assembly can cooperate with the trigger part to drive the cover part to move away from the light hole. Whether the automatic optical protection device is used in the fields of laser obstacle removal, laser cutting, laser welding, etc., it can better adapt to lenses or optical devices in different fields, and can also protect the optical fiber interface inside the optical path channel.

[0021] An embodiment of the present invention further provides a laser emitting device, which has the same beneficial effects as the above-mentioned automatic optical protection device, and will not be described in detail here.

Brief Description of the Drawings

[0022] Figure 1 It is an exploded view of a partial structure of an optical protection device provided in the first embodiment of the present invention.

[0023] Figure 2 yes Figure 1 Magnified view of some areas.

[0024] Figure 3 It is a schematic diagram of the coordination between the optical protection device and the lens or the optical device provided by the present invention.

[0025] Figure 4 It is a schematic structural diagram of a mounting sleeve of an optical protection device provided in a first embodiment of the present invention.

[0026] Figure 5 It is a schematic structural diagram of a trigger assembly of an optical protection device provided in a first embodiment of the present invention.

[0027] Figure 6 1 is a schematic structural diagram of a cover member of an optical protection device provided in accordance with a first embodiment of the present invention.

[0028] Figure 7 1 is a top view of an optical protection device provided by the first embodiment of the present invention.

[0029] Figure 8a 1 is a top view of another optical protection device provided by the first embodiment of the present invention.

[0030] Figure 8b yes Figure 8a Schematic diagram of the structure.

[0031] Figure 9a 4 is a top view of another optical protection device provided by the first embodiment of the present invention.

[0032] Figure 9b yes Figure 9a Schematic diagram of the structure.

[0033] Fig.10 yes Figure 9b Magnified view of some areas.

[0034] Description of the accompanying drawings:

[0035] 10. Optical protection device; 20. Lens or optical device;

[0036] 1. Optical output head; 2. Protective head; 3. Trigger assembly;

[0037] 21. Protective head housing; 22. Protective assembly; 31. Fixing member; 32. Trigger member;

[0038] 201, hollow channel; 202, opening; 211, optical path channel; 212, light hole; 213, installation area; 214, protection component body; 215, first fixing column; 216, clamping slide rail; 221, elastic member; 222, covering member; 223, installation sleeve; 224, elastic connector; 311, avoidance channel;

[0039] 2131, groove wall; 2132, groove bottom; 2141, elastic member connection position; 2221, covering portion; 2222, connecting portion; 2223, triggering portion; 2224, limiting column; 2225, second fixing column; 2226, sliding groove; 2231, first make way channel; 2232, second make way channel. [Specific implementation method]

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] In the embodiments provided by the present invention, 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 determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0042] It should be understood that the "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 invention. 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 be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present invention.

[0043] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0044] The flow chart and block diagram in the accompanying drawings of the present invention illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which is determined based on the functions involved. It should be particularly noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs a specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0045] Lasers or other light-emitting devices usually need to be used in conjunction with matching lenses or other optical devices, and may need to be switched. During the switching process, the output head of the laser or other light-emitting device will be exposed to the outside world, allowing dust to contact sensitive parts such as optical lenses. For example, commonly used output heads of lasers include QBH (Quartz Block Head) or QCS (Quartz Collimator System), etc., which have lenses or quartz crystals on their front faces. When the laser needs to be adapted to different lenses or other optical devices, the end face of the output head is exposed to the outside world during the removal process, and its end face crystal or lens is easily attached to dust. If light is emitted at this time, it is easy to burn the output head.

[0046] Please combine Figures 1 to 3 The first embodiment of the present invention provides an automatic optical protection device 10, which is used to adapt to different lenses or optical devices 20. The optical protection device 10 includes a protection head 2 and a trigger assembly 3; the protection head 2 includes a protection head shell 21 and a protection assembly 22;

[0047] The protection component 22 includes a protection component body 214, an elastic member 221 and a cover member 222. A housing cavity for accommodating the optical output head 1 is provided in the protection head housing 21. An optical path channel 211 is formed along the optical path direction of the housing cavity. The protection component 22 is provided at one end of the optical path channel 211 away from the optical output head 1. The protection component body 214 is provided with an installation area 213 and a light hole 212. The light hole 212 is communicated with the optical path channel 211 in the protection head housing 21. The cover member 222 includes a cover portion 2221, a connecting portion 2222 and a trigger portion 2223. The cover portion 2221 is provided at one end of the protection component body 214 away from the protection head housing 21. The connecting portion 2222 is provided on one side of the cover portion 2221 close to the installation area 213. The trigger portion 2223 is provided on the connecting portion 2222 or the cover portion 2221. It should be noted that the trigger portion 2223 can be disposed on the connecting portion 2222 or on the covering portion 2221, and can be a protruding structure or a recessed structure, and its specific shape depends on the trigger component 3. For example, Figure 2 As shown, one end of the connecting portion 2222 close to the light-through hole 212 is recessed toward the side of the mounting area 213 to form a triggering portion 2223; the elastic member 221 is disposed between the connecting portion 2222 and the protection component body 214, and the elastic member 221 drives the connecting portion 2222 and the covering portion 2221 to move relative to the protection head shell 21, so that the covering member 222 closes the light-through hole 212;

[0048] The lens or optical device 20 is provided with a hollow channel 201 having an opening 202, and the trigger assembly 3 is disposed in the hollow channel 201. When the end of the protection 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 assembly 3 close to the protection assembly 22 can cooperate with the trigger portion 2223 to drive the cover portion 2221 to move so that the cover portion 2221 is away from the light hole 212.

[0049] It can be understood that in this embodiment, the end of the accommodating cavity away from the protection component can be connected to the optical device to be protected, and the end of the optical output head 1 close to the protection component 22, that is, the output end of the optical output head 1 is a fiber connector. It should be understood that the automatic optical protection device 10 provided in this embodiment can automatically protect the fiber connector on the optical output head 1. Specifically, the optical path channel 211 inside the protection head shell 21 is used to accommodate the fiber connector for laser passage, and the elastic member 221 can provide a restoring force. When the protection head 2 and the lens or optical device 20 are not connected, the elastic member 221 disposed between the connecting portion 2222 and the protection component body 214 will provide a force, forcing the covering portion 2221 to cover the light hole 212 that conducts the optical path channel 211 with the outside world, so that the fiber connector is protected by the covering portion 2221 at this time and is not exposed to the outside of the protection head shell 21. It should be noted that the elastic member 221 is not limited to a spring, a spring, a torsion spring, etc.

[0050] Further, the trigger assembly 3 provided in this embodiment is fixed inside the hollow channel 201 of the lens or optical device 20. Optionally, the trigger assembly 3 can be detachably connected to the inner wall of the hollow channel 201, or can be integrally formed with the inner wall of the hollow channel 201. It should be understood that the trigger assembly 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 is connected 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 assembly 3 close to the protective assembly 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 hole 212 that conducts the optical path channel 211 to the outside is exposed, and the elastic member 221 is compressed or stretched after the connecting part 2222 moves. Furthermore, after the optical fiber interface emits laser light, the laser light 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 task of laser transmission.

[0051] It should be noted that the protection component body 214 can be a part that is processed and extended from the protection head shell 21, or it can be a part that is separately assembled and installed on the protection head shell.

[0052] Further, when the optical protection device 10 completes the laser transmission work, the user can release the connection between the protection head 2 and the lens or optical device 20. At this time, the end of the trigger component 3 close to the protection component 22 is disconnected from the trigger part 2223. Specifically, in one embodiment, the elastic member 221 disposed between the connection part 2222 and the protection component body 214 is restored from the stretched state to the normal state, and the elastic member 221 provides a restoring force, and the restoring force forces the connection part 2222 to move. After the connection part 2222 moves, it drives the cover part 2221 to move together, so that the light hole 212 that conducts the optical path channel 211 with the outside world is covered by the cover part 2221. Therefore, when the end of the trigger component 3 close to the protection component 22 is disconnected from the trigger part 2223, the cover part 2221 can immediately close the light hole 212 under the action of the elastic restoring force of the elastic member 221, so as to prevent the optical path channel 211 from communicating with the outside world, and then protect the optical interface.

[0053] It should be understood that the optical protection device 10 provided in this embodiment can firstly be applied to different lenses or optical devices 20. Specifically, usually a hollow channel 201 is provided inside the lens or optical device 20. The function of the hollow channel 201 is to allow the laser to pass through, and a lens group is provided inside the hollow channel 201. When the laser is output from the optical fiber interface, it can be transmitted to the hollow channel 201 through the optical path channel 211, and then pass through the lens group in the hollow channel 201 to gather and emit. The trigger component 3 in this embodiment can be installed inside the hollow channel 201, and the protective head shell 21 can be adapted to lenses or optical devices 20 in any field, and has a wide range of adaptability. When the protective head shell 21 and the lens or optical device 20 are connected, 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, so that the automatic optical protection device 10 completes the work of laser transmission. In addition, when the trigger device can be released from the connection part 2222, the cover part 2221 can immediately close the light hole 212 to prevent the light path channel 211 from connecting to the outside world, thereby protecting the optical fiber interface. Therefore, whether the automatic optical protection device 10 is used in the fields of laser obstacle removal, laser cutting, laser welding, etc., it can be well adapted to lenses or optical devices 20 in different fields, and can also protect the optical fiber interface in the light path channel 211.

[0054] It should be noted that the light hole of the existing optical output head is generally close to the lens or the lens in the optical device. In order to enable the automatic optical protection device 10 provided in this embodiment to be adapted to different lenses or optical devices. In this embodiment, the thickness of the cover portion 2221 covering the light hole 212 is relatively thin, and the distance between the optical fiber interface of this embodiment and the light hole 212 is relatively close, so that the laser emitted by the optical fiber interface can quickly pass through the light hole and enter the hollow channel. That is, the automatic optical protection device 10 provided in this embodiment can be adapted to lenses or optical devices in different fields.

[0055] Please continue to combine Figures 1 to 3 As a possible implementation, the protection component 214 includes a mounting sleeve 223, and the mounting area 213 includes a groove wall surface 2131 perpendicular to the end surface of the protection head shell 21 and a groove bottom surface 2132 parallel to the end surface of the protection head shell. The mounting sleeve 223 is sleeved on the groove bottom surface 2132 to close the mounting area 213. It should be understood that the end of the protection head shell 21 close to the protection component 22 is provided with a mounting area 213 along its axial direction toward the end close to the optical output head 1, and the surface of the mounting area 213 is "L"-shaped or wedge-shaped. Specifically, the end surface of the mounting area 213 perpendicular to the protection head shell 21 is the groove wall surface 2131, and the end surface parallel to the protection head shell 21 is the groove bottom surface 2132. One of the functions of the mounting area 213 is to accommodate the protection component 22. And the mounting sleeve 223 is sleeved on the mounting area 213 to protect the protection component 22 in 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 shell 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 together with the protective head shell 21. Therefore, the diameter of the mounting sleeve 223 needs to be equal to or smaller than the outer diameter of the protective head shell 21 to avoid the mounting sleeve 223 hindering the protective head shell 21 from entering the hollow channel 201.

[0056] As a possible implementation, the protection assembly 22 disposed on the installation area 213 can be directly inserted into the hollow channel 201 along with the protection head shell 21. This implementation does not require the installation area 213 shell, making the protection head 2 more lightweight.

[0057] Specifically, please combine Figure 5The trigger assembly 3 includes a fixing member 31 and a trigger member 32. The fixing member 31 is arranged in the hollow channel 201. The fixing member 31 is provided with an avoidance channel 311 corresponding to the optical path channel 211. The trigger member 32 is arranged on the side of the fixing member 31 close to the protection assembly 22. It should be understood that the general structure of the lens or optical device 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 transmitter. 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 trigger assembly 3 provided in this embodiment is adapted to the above-mentioned different lenses or optical devices 20. Specifically, the fixing member 31 is respectively arranged in 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 threaded connection or snap connection, and the fixing member 31 can also be integrally formed with the inner wall of the hollow channel 201 by adhesive connection or welding. It should be noted that, after the protective head shell 21 enters the hollow channel 201, the end of the triggering member 32 away from the fixing member 31 can contact the triggering portion 2223, so 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 shell 21. In addition, the axis of the optical fiber interface, the optical path channel 211, the light hole 212 of the protective head shell 21, the hollow channel 201 and the avoidance channel 311 are the same. Therefore, the laser output by the optical fiber interface will pass through the optical path channel 211, the hollow channel 201 and the avoidance channel 311 in sequence for output.

[0058] Furthermore, please combine Figure 1 , Figure 2 , Figure 3 and Figure 6 , the triggering part 2223 of the triggering member 32 forms a non-vertical 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 triggering member 32 is slidably connected to the triggering part 2223, and drives the covering part 2221 to move along the radial direction of the light-through hole 212, so that the covering part 2221 gradually moves away from the light-through hole until the optical path channel 211 and the hollow channel 201 are connected. It should be understood that when the protective head shell 21 enters the hollow channel 201, the triggering member 32 will contact the triggering part 2223, and the shape of the triggering member 32 is adapted to the shape of the triggering part 2223. For example, Figure 5 and Figure 6The trigger member 32 shown has a conical cross section along the axial direction of the protective head shell 21, and the trigger portion 2223 is a structure formed by the connection portion 2222 being recessed in a direction away from the light-through hole 212, and the structure presents a sloped structure. When the protective head 2 is inserted into the hollow channel 201 and connected to the lens or optical device 20, the conical slope of the trigger member 32 first contacts the wedge-shaped cross section of the trigger portion 2223, and further, the trigger portion 2223 is continuously subjected to a force, so that the connection portion 2222 moves in a direction away from the light-through hole 212 of the optical path channel 211, thereby driving the cover portion 2221 to move in a radial direction of the optical path channel 211 and gradually away from the light-through hole 212 of the optical path channel 211, until the cover portion 2221 completely exposes the light-through hole 212 of the optical path channel 211, and 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 hole 212 of the optical path channel 211.

[0059] When the protective head 2 and the lens or optical device 20 are disconnected, the elastic member 221 can provide a restoring force, which forces the connecting portion 2222 to move toward the direction close to the light 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 approach the light hole 212 of the optical path channel 211, until the covering portion 2221 completely covers the light hole 212 of the optical path channel 211, at which time the elastic member 221 returns to a normal state. It should be understood that there are many implementations for the covering member 222 to close the light hole 212.

[0060] Please combine Figure 2 , Figure 6 , Figure 7 8 , in a possible implementation manner, the number of the covering member 222 is at least one. Specifically, in one embodiment, an elastic member connection position 2141 is provided on the protection component body 214, a limiting column 2224 is provided on a side of the connection portion 2222 close to the protection component body 214, one end of the elastic member 221 passes through the limiting column 2224 to connect with the connection portion 2222, and the other end passes through the elastic member connection position 2141 to connect with the protection component body 214, and the elastic member 221 is used to provide a thrust or a pull force to enable the covering member 222 to close the light hole 212.

[0061] It should be understood that the connecting portion 2222 is arranged on the groove wall 2131 of the installation area 213 but is spaced from the groove wall 2131 so that the connecting portion 2222 can move relative to the groove wall 2131. The elastic member 221 is arranged between the connecting portion 2222 and the protective component body 214. The limiting column 2224 and the elastic member connecting position 2141 serve as the connection position of the elastic member 221. The shape of the limiting column 2224 and the elastic member connecting position 2141 can be a groove, and the elastic member 221 can also be limited to prevent the elastic member 221 from slipping when the connecting portion 2222 moves. When the elastic member 221 is in a normal state, it is neither stretched nor compressed. At this time, the covering portion 2221 just closes the light hole 212 of the optical path channel 211. In addition, when the protective head shell 21 shakes, the elastic member 221 will also provide radial and axial forces to limit the movement of the connecting portion 2222 to prevent the covering portion 2221 from shaking. When the trigger member 32 contacts the trigger portion 2223. In one embodiment, Figure 7 Similarly, when the trigger member 32 slides with the trigger portion 2223, the connecting portion 2222 will move in a direction away from the side of the protection component body 214, and the elastic member 221 will be stretched. In one embodiment, as shown in FIG8 , when the trigger member 32 slides with the trigger portion 2223, the connecting portion 2222 will move in a direction close to the side of the protection component body 214, and the elastic member 221 will be compressed. In both of the above embodiments, the connecting portion 2222 moves, thereby driving the covering portion 2221 to move together, so that the light hole 212 of the optical path channel 211 is exposed.

[0062] Further, when the trigger member 32 loses contact with the trigger portion 2223, the elastic member 221 is used to provide a thrust or a pull so that the connecting portion 2222 moves toward the direction close to the light 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 approach the light hole 212 of the optical path channel 211 until the covering portion 2221 completely covers the light hole 212 of the optical path channel 211, at which time the elastic member 221 returns to its normal state.

[0063] Please combine Figure 2 , Figure 69 , in another possible embodiment, the number of the covering members 222 is two, and the covering portions 2221 of the two covering members 222 are both disposed at one end of the protection component body 214 away from the protection head shell 21, and an elastic member 221 is disposed between the connecting portion 2222 of one covering member 222 and the connecting portion 2222 of the other covering member 222, and the elastic member 221 is used to provide a pulling force so that the covering member 222 closes the light-through hole 212. It can be understood that when the number of the covering members 222 is two, an elastic member 221 is still disposed between each covering member 222 and the protection component body 214 (this embodiment is not illustrated in the drawings), and the function of the elastic member 221 is mainly to serve as a bridge connecting the covering member 222 and the protection head shell 21, so that the covering member 222 is connected to the protection head shell 21. An elastic member 221 may be sandwiched between the connecting members of the two covering members 222. The elastic member 221 is in a stretched state. The tension provided by the elastic member 221 forces the two covering members 222 to move closer to each other, so that the covering portions 2221 of the two covering members 222 move closer to close the light through hole 212. When the trigger member 32 contacts the trigger portion 2223, the two covering members 222 move away from each other until the light through hole 212 of the optical path 211 is exposed. When the trigger member 32 is no longer in contact with the trigger portion 2223, the tension provided by the elastic member 221 forces the two covering members 222 to move closer to each other to close the light through hole 212.

[0064] 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 limit the movement trajectory of the cover 222. Therefore, the present embodiment also provides a more stable structure to strengthen the restriction on the movement trajectory of the cover 222.

[0065] Please combine Figure 2 , Figure 5 and Figure 9aIn a possible embodiment, the protection assembly 22 further includes an elastic connector 224, a first fixing column 215 is disposed at one end of the groove wall 2131 close to the groove bottom surface 2132, a second fixing column 2225 is disposed at one end of the connection portion 2222 close to the groove bottom surface 2132, and one end of the elastic connector 224 is connected to the first fixing column 215, and the other end is connected to the second fixing column 2225. It should be understood that the elastic connector 224 provides a continuous pulling force, which forces the cover member 222 to always be subjected to a force close to the groove bottom surface 2132. When the triggering portion 2223 on the connection portion 2222 contacts the triggering member 32, the connection portion 2222 is always subjected to a force close to the groove bottom surface 2132, and then the cover portion 2221 moves along the end surface of the protection head shell 21. It should be understood that the elastic connecting member 224 limits the movement trajectory of the cover member 222, so that the movement trajectory of the cover member 222 is more stable when the protective head 2 and the lens or optical device 20 are disassembled or connected.

[0066] Please combine Figure 9b and Fig.10 In another possible embodiment, a slide groove 2226 is provided on one side of the connection part 2222 close to the installation area 213, and a snap-in slide rail 216 is provided on the installation area 213 corresponding to the slide groove 2226. Specifically, a slide groove 2226 is provided on one side of the connection part 2222 close to the groove wall surface 2131, and the groove wall surface 2131 protrudes corresponding to the slide groove 2226 to form a snap-in slide rail 216, and the snap-in slide rail 216 cooperates with the slide groove 2226, so that the connection part 2222 can drive the cover part 2221 to move along the snap-in slide rail 216. It should be understood that when the trigger part 2223 on the connection part 2222 contacts the trigger member 32, the connection part 2222 will move along the snap-in slide rail 216 due to the limitation of the snap-in slide rail 216, while the distance between the cover part 2221 and the end face of the protective head shell 21 remains unchanged.

[0067] In yet another possible implementation, the above two implementations may also be used in combination, which will not be elaborated herein.

[0068] Please also refer to 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 member 32. The trigger member 32 passes through the second clearance channel 2232 and is slidably connected to the trigger portion 2223. It should be understood that the first clearance channel 2231 is used to allow the laser to pass through, and the second clearance channel 2232 is used to allow the trigger member 32 to pass through, so the diameter of the first channel should be greater than or equal to the diameter of the light hole 212.

[0069] Please combine Figure 2 and Figure 3 The second embodiment of the present invention further provides a laser emitting device, comprising a laser generator, a lens or an optical device 20 and the above-mentioned automatic optical protection device 10, wherein the automatic optical protection device 10 comprises an optical output head 1 and a protection head 2, wherein 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 having an opening 202 is provided on the lens or the optical device 20, and an end of the protection head 2 away from the optical output head 1 can pass through the opening 202 to be detachably connected to the lens or the optical device 20.

[0070] It can be understood that the automatic optical protection device 10 in this embodiment has a wide range of adaptability. Whether the automatic optical protection device 10 is used in the fields of laser obstacle removal, laser cutting, laser welding, etc., it can better adapt to lenses or optical devices 20 in different fields, and can also protect the optical fiber interface in the optical path channel 211.

[0071] Furthermore, a snap-in structure is also provided at one end of the laser output head 2 close to the laser transmission line 1, and a matching structure that matches the snap-in structure is provided on the lens or the optical device. When the laser output head 2 is inserted into the hollow channel 201, the end of the trigger component 3 close to 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 hole 212 is exposed, that is, after the covering part 2221 is away from the light hole 212, the snap-in structure can be snap-connected with the surface or matching structure of the laser output device 20 to enhance the connection stability between the laser output head 2 and the laser output device 20.

[0072] An automatic optical protection device and a laser emitting device disclosed in an embodiment of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and the scope of application. In summary, the content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic optical protection device, used to adapt to 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 housing and a protection assembly; The protection component comprises a protection component body, an elastic member and a cover member. A housing cavity for accommodating an optical output head is provided in the protection head housing, and an optical path channel is formed by penetrating along the optical path direction of the housing cavity. The protection component is provided at one end of the optical path channel away from the optical output head. A mounting area and a light through hole are provided on the protection component body, and the light through hole communicates with the optical path channel in the protection head housing. The cover member comprises a cover portion, a connection portion and a trigger portion. The cover portion is provided at one end of the protection component body away from the protection head housing, the connection portion is provided on one side of the cover portion close to the mounting area, and the trigger portion is provided on the connection portion or the cover portion. The elastic member is provided between the connection portion and the protection component body, and the elastic member drives the connection portion and the cover portion to move relative to the protection head housing, so that the cover member closes the light through hole. A hollow channel with an opening is provided on the lens or optical device, and the trigger component is disposed in the hollow channel. When the end of the protection head away from the optical output head passes through the opening to be detachably connected to the lens or optical device, the end of the trigger component close to the protection component can cooperate with the trigger part to drive the covering part to move so that the covering part is away from the light-through hole.

2. The automatic optical protection device according to claim 1, characterized in that: The protection component comprises a mounting sleeve, and the mounting sleeve is sleeved on the protection component to cover the mounting area.

3. The automatic optical protection device according to claim 2, characterized in that: The trigger component includes a fixing part and a trigger part. The fixing part is arranged in the hollow channel. An avoidance channel is arranged on the fixing part corresponding to the optical path channel. The trigger part is arranged on a side of the fixing part close to the protection component.

4. The automatic optical protection device according to claim 3, characterized in that: The triggering part of the triggering member forms a non-vertical angle with the axial direction of the optical path channel; when the protective head is connected to the lens or optical device, the triggering member is slidably connected to the triggering part and drives the covering part to gradually move away from the light-through hole so that the optical path channel and the hollow channel are connected.

5. The automatic optical protection device according to claim 2, characterized in that: The number of the covering members is at least one, an elastic member connecting position is provided on the protection component body, a limiting column is provided on the side of the connecting portion close to the protection component body, one end of the elastic member passes through the limiting column to be connected to the connecting portion, and the other end passes through the elastic member connecting position to be connected to the protection component body, and the elastic member is used to provide thrust or pull to enable the covering member to close the light hole.

6. The automatic optical protection device according to claim 2, characterized in that: There are two covering members, and the covering parts of the two covering members are both arranged at one end of the protection component body away from the protection head shell. An elastic member is arranged between the connecting part of one covering member and the connecting part of the other covering member, and the elastic member is used to provide a pulling force so that the covering members can close the light hole.

7. The automatic optical protection device according to claim 2, characterized in that: The installation area includes 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 protection component also includes an elastic connecting member. A first fixing column is arranged at one end of the groove wall surface close to the groove bottom surface, and a second fixing column is arranged at one end of the connecting portion close to the groove bottom surface. One end of the elastic connecting member is connected to the first fixing column, and the other end is connected to the second fixing column.

8. The automatic optical protection device according to claim 2, characterized in that: A slide groove is arranged on one side of the connection part close to the installation area, and a clamping slide rail is arranged on the installation area corresponding to the slide groove. The clamping slide rail cooperates with the slide groove so that the connection part can drive the covering part to move along the clamping slide rail.

9. The automatic optical protection device according to claim 3, characterized in that: The mounting sleeve is provided with a first making way channel corresponding to the optical path channel, and a second making way channel corresponding to the trigger member. The trigger member passes through the second making way channel and is slidably connected with the trigger portion.

10. A laser emitting device, characterized in that: The invention comprises a laser generator, a lens or an optical device and the automatic optical protection device according to any one of claims 1 to 8, wherein the automatic optical protection device comprises an optical output head and a protection head, wherein one end of the optical output head is connected to the laser generator, and the other end is connected to the protection head, a hollow channel with an opening is provided on the lens or the optical device, an end of the protection head away from the protection component is further provided with a snap-fit ​​structure, and a matching structure matching with the snap-fit ​​structure is provided on the lens or the optical device, and when the covering portion is away from the light-through hole, the snap-fit ​​structure can be snap-fitted with the outer surface of the lens or the optical device or the matching structure.

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