Optical path protection device for a vehicle-mounted laser processor
By employing the mechanical linkage of a light guide tube and a protective cover mechanism in the vehicle-mounted laser processor, the complexity and reliability issues of existing optical path protection devices are resolved, achieving automated optical path protection, reducing costs, and improving the equipment's vibration resistance.
Patent Information
- Application Number
- CN202521989005.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
Existing optical path protection devices for vehicle-mounted laser processors require multiple drive sources and complex control systems, resulting in high costs, low reliability, and high failure rates in vibration environments.
The protective cover mechanism equipped with the first and second light guide tubes achieves automatic synchronous opening and closing of the optical path through mechanical structures such as sliding sleeves, sliding shafts, compression springs, and torsion spring hinges. It uses the lifting power of the laser generator for linkage, avoiding the need for an additional driving source.
It achieves automated integration of optical path protection, simplifies the structure, reduces costs, improves reliability, adapts to vehicle vibration environments, and extends equipment life.
Smart Images
Figure CN224683624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser equipment technology, and in particular to an optical path protection device for a vehicle-mounted laser processor. Background Technology
[0002] In a vehicle-mounted mobile laser system, the laser processor consists of two parts: a mobile laser generator, which can typically be moved between a higher-level working state and a lower-level transport state by a drive mechanism as needed; and a fixed laser receiver, amplifier, and processor, which receives and processes the laser signal. These two parts are connected via an optical path.
[0003] When a mobile laser generator is not in operation (lower position), its optical path interface is exposed to the external environment, making it highly susceptible to contamination or damage from dust, impacts, etc., affecting beam quality and equipment lifespan. Similarly, the optical path interface of a fixed laser receiver amplifier processor also requires protection. The traditional solution involves installing separate protective covers for each interface, driven by a motor or cylinder, and configuring a complex sensing and control system to coordinate the opening and closing of the two covers and the lifting and lowering of the laser generator. This solution has the following disadvantages: it requires multiple drive sources, has a complex control system, is costly, has relatively low reliability, and suffers from a high failure rate in vehicle-mounted vibration environments.
[0004] Therefore, there is an urgent need for a simple, low-cost optical path protection device for vehicle-mounted laser processors that requires no additional power source. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an optical path protection device for vehicle-mounted laser processors.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: an optical path protection device for a vehicle-mounted laser processor, comprising a first light guide tube and a matching first protective cover mechanism, a second light guide tube and a matching second protective cover mechanism, and a protective cover linkage mechanism; the first light guide tube is fixed to a mobile laser generator, and the second light guide tube is fixed to a fixed laser receiver amplifier processor; the first light guide tube has a first inclined interface, and the second light guide tube has a second inclined interface; the first inclined interface and the second inclined interface are matched with each other and can be connected by a mating sealing ring; the first protective cover mechanism is disposed on the first light guide tube and is used to open and close the optical path of the first light guide tube; the second protective cover mechanism is disposed on the second light guide tube and is used to open and close the optical path of the second light guide tube; the protective cover linkage mechanism includes a contact head fixed on the second light guide tube and a sliding sleeve assembly disposed on the first light guide tube; the sliding sleeve... The components include a sliding sleeve, a sliding shaft, and a compression spring; the sliding shaft is slidably fitted inside the sliding sleeve via the compression spring, and the upper end of the sliding shaft corresponds to and matches the contact head; the first protective cover mechanism includes: a first protective cover, a rotating arm, a rotating shaft, and a first sealing ring; the rotating shaft is horizontally set at the upper port of the first light guide tube, the rotating arm can rotate around the rotating shaft, and the rotating arm has a long arm end and a short arm end; the long arm end is fixedly connected to the first protective cover, and the short arm end is hinged to the lower end of the sliding shaft; the first sealing ring is set on the first inclined surface interface of the first light guide tube; the second protective cover mechanism includes: a second protective cover, a torsion spring hinge, and a second sealing ring; one end of the torsion spring hinge is fixed to the upper port of the second light guide tube, and the other end is connected to the second protective cover and provides closing torque to the second protective cover; the second sealing ring is set on the second inclined surface interface of the second light guide tube; the extension direction of the first inclined surface interface forms a 45-degree angle with the extension direction of the light path.
[0007] Its working principle is as follows: The vehicle-mounted laser processor includes a mobile laser generator and a fixed laser receiver amplification processor. The mobile laser generator is driven by a drive mechanism and can switch between an upper and lower state. When the drive mechanism drives the mobile laser generator upward, it causes the first light guide tube and the sliding sleeve assembly to rise together. The upper end of the sliding shaft eventually contacts and triggers the contact head. Under the reaction force of the contact head, the sliding shaft overcomes the force of the compression spring and generates a relative displacement, which drives the protective cover linkage mechanism to move. This drives the first and second protective cover mechanisms to automatically and synchronously open the optical paths of the first and second light guide tubes, while the first inclined interface and the second inclined interface complete the docking and sealing. When the drive mechanism drives the mobile laser generator downward to the lower state, the sliding shaft moves downward with the first light guide tube and gradually moves away from the contact head. The restoring force of the compression spring pushes the sliding shaft to reset, thereby controlling the first and second protective cover mechanisms to move in opposite directions, automatically closing the optical paths of the first and second light guide tubes. When the sliding shaft is in its lowest position in the initial assembly state, the compression spring provides an upward preload force to the sliding shaft. The compression spring, through the first protective cover mechanism, provides a clockwise closing torque to the first protective cover. The first inclined interface is set at a 45-degree angle to the direction of optical path extension. The linear movement of the first light guide tube can be naturally converted into a normal clamping force on the mating surface, ensuring the reliability of the mating seal.
[0008] The beneficial effects of this utility model are as follows: 1. High integration and automation: The optical path protection function is deeply integrated into the laser processor. Utilizing only the original lifting power of the laser generator, the synchronous opening, closing, and interface docking of the dual optical paths can be automatically completed without additional drive sources or complex electrical control. 2. Pure mechanical transmission, high reliability: The entire linkage process is completed based on mechanical structures such as sliding sleeves, sliding shafts, compression springs, rotating arms, and torsion springs. It has strong anti-interference capabilities, is particularly suitable for vibration conditions in vehicle environments, has a long lifespan, and a low failure rate. 3. Ingenious structure and low cost: A simple touch trigger mechanism and mechanical linkage replace multiple independent drive and control systems, simplifying the structure and reducing manufacturing costs by 60%. 4. Reliable sealing protection: Whether the mobile laser generator is in an upper or lower position, the optical path interface can be tightly sealed, effectively preventing contaminants from entering the optical path. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of the mobile laser generator in the lower position in this embodiment of the present invention.
[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the first light guide tube and the first protective cover (lower position closed).
[0011] Figure 3 yes Figure 1A schematic diagram of the structure of the second light guide tube and the second protective cover (lower position closed).
[0012] Figure 4 yes Figure 2 A magnified view of a portion of region A in the middle.
[0013] Figure 5 yes Figure 3 A magnified view of a portion of region B in the middle.
[0014] Figure 6 This is a schematic diagram of the overall structure of the mobile laser generator in the upper position in this embodiment of the utility model.
[0015] Figure 7 This is a three-dimensional structural diagram of the first light guide tube and the first protective cover according to one embodiment.
[0016] Figure 8 This is a three-dimensional structural diagram of the second light guide tube and the second protective cover according to one embodiment.
[0017] Explanation of the labels in the diagram: 1-Mobile laser generator; 2-Fixed laser receiver, amplifier, and processor; 3-First light guide tube; 4-First protective cover; 5-Rotating arm; 6-Rotating shaft; 7-Sliding sleeve; 8-Sliding shaft; 9-First sealing ring; 10-Compression spring; 11-Second light guide tube; 12-Torsion spring hinge; 13-Second protective cover; 14-Contact head; 15-Second sealing ring; 31-First beveled interface; 32-Second beveled interface; 51-Short arm end; 52-Long arm end; 53-Arc-shaped hinge hole; 54-Butt sealing ring. Detailed Implementation
[0018] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0019] like Figures 1 to 8 As shown, one embodiment of this utility model includes a first light guide tube 3 and a matching first protective cover mechanism, a second light guide tube 11 and a matching second protective cover mechanism, and a protective cover linkage mechanism. Its core structure is as follows: Light guide tube section: The first light guide tube 3 is securely mounted to the light output end of the mobile laser generator 1 via a bracket, and its exit end is machined into a 45-degree bevel (first bevel interface 31). The second light guide tube 11 is securely mounted to the light input end of the fixed laser receiver amplifier processor 2 via a bracket, and its entrance end is also machined into a 45-degree bevel (second bevel interface 32). The angles and dimensions of the two bevels are matched.
[0020] First protective cover mechanism: At the upper port of the first light guide tube 3, a rotating shaft 6 is horizontally fixed. The middle part of the rotating arm 5 is fitted onto the rotating shaft 6 and can rotate around it. One end of the rotating arm 5 is a short arm end 51, and the other end is a long arm end 52. The first protective cover 4 is fixedly installed on the long arm end 52 of the rotating arm 5, and its shape matches the port of the first light guide tube 3. The sliding sleeve 7 is fixed to the side wall of the first light guide tube 3. The sliding shaft 8 is inserted into the sliding sleeve 7 and can slide in the vertical direction. The compression spring 10 is fitted on the sliding shaft 8 to provide it with an upward preload. The lower end of the sliding shaft 8 is movably connected to the short arm end 51 of the rotating arm 5 by a hinge (see...). Figure 4 An arc-shaped hinge hole 53 is provided to adapt to the movement trajectory of the sliding shaft 8 and the short arm end 51. The first sealing ring 9 is embedded in the groove around the first inclined surface interface 31. Figure 7 The slide sleeve assembly is set in pairs, and of course, the corresponding contact heads 14 are also set in pairs. This structure has better operational reliability.
[0021] A torsion spring hinge 12 is installed at the upper port of the second light guide tube 11. The second protective cover 13 (inward-folding type) is fixed to the rotating part of the torsion spring hinge 12. The torsion spring inside the torsion spring hinge 12 provides a clockwise closing torque for the second protective cover 13 (see...). Figure 5 The second sealing ring 15 is embedded in the groove around the inner side of the second beveled interface 32.
[0022] Protective cover linkage mechanism: like Figure 3 , Figure 5 As shown, the contact head 14 is fixed to the side wall of the second light guide tube 11 by means of threaded connection or adjusting bolt, and its height position is adjustable. The position of the contact head 14 is directly opposite to the movement trajectory of the upper end of the sliding shaft 8.
[0023] Work process: Initial (lower) state ( Figure 1 ): The mobile laser generator 1 is in the lower position. Under the preload of the compression spring 10, the sliding shaft 8 is pushed upward, and the lower end of the sliding shaft 8 (hinged to the short arm end 51) forces the rotating arm 5 to rotate clockwise through the short arm end 51. The first protective cover 4, fixed to the long arm end 52, is then tightly pressed against the first sealing ring 9, sealing the first light guide tube 3. At the same time, under the torque of the torsion spring hinge 12, the second protective cover 13 is tightly pressed against the second sealing ring 15, sealing the second light guide tube 11. At this time, the equipment is in a safe transport or standby state.
[0024] The process of starting the ascent ( Figure 1 Towards Figure 6 State transition): The drive mechanism (not shown in the figure, but typically a motor, cylinder, lead screw, etc.) is activated, pushing the mobile laser generator 1 upward. The first light guide tube 3 and the sliding sleeve 7 and sliding shaft 8 fixed thereon rise accordingly. When the upper end of the sliding shaft 8 contacts and collides with the contact head 14 fixed on the second light guide tube 11, it receives a downward reaction force. This force overcomes the preload of the compression spring 10, pushing the sliding shaft 8 to slide downward relative to the sliding sleeve 7. The downward movement of the sliding shaft 8 pulls the short arm end 51 of the rotating arm 5, causing the rotating arm 5 to rotate counterclockwise around the rotating shaft 6, thereby driving the first protective cover 4 to open the first light guide tube 3. As the first protective cover 4 continues to rotate, the cover surface of the first protective cover 4 contacts the second protective cover 13, pushing the second protective cover 13 to rotate counterclockwise against the torque of the torsion spring hinge 12, thereby opening the second light guide tube 11. During this process, the mobile laser generator 1 continues to rise, and finally the first light guide tube 3 and the second light guide tube 11 complete the docking at the 45-degree beveled interface, and are pressed together by the docking sealing ring 54 (see...). Figure 7 As shown, the mating sealing ring 54 is fixedly mounted on the first inclined surface interface 31; the mating sealing ring 54 can also be fixedly mounted on the second inclined surface interface 32), forming a continuous optical path. At this time, both protective covers are in the fully open state.
[0025] Descent and shutdown process ( Figure 6 Towards Figure 1 State transition): After the operation is completed, the drive mechanism moves the mobile laser generator 1 downwards. The first light guide tube 3 descends accordingly, and the sliding shaft 8 gradually disengages from the contact head 14. The preload of the compression spring 10 regains dominance, pushing the sliding shaft 8 upwards to reset. The upward push of the sliding shaft 8 causes the first protective cover 4 to rotate clockwise via the rotating arm 5. When the first protective cover 4 disengages from the second protective cover 13, the second protective cover 13 quickly rotates clockwise to close under the torque of the torsion spring hinge 12 (pressing the second sealing ring 15). Finally, when the mobile laser generator 1 has completely returned to its lower position, the first protective cover 4 is also completely closed (pressing the first sealing ring 9), and the system returns to its initial protection state.
[0026] This utility model is not limited to the specific structure of the above embodiments. Equivalent transformations of other similar structures all fall within the protection scope of this utility model.
Claims
1. An optical path protection device for a vehicle-mounted laser processor, characterized in that... The system includes a first light guide tube and a matching first protective cover mechanism, a second light guide tube and a matching second protective cover mechanism, and a protective cover linkage mechanism. The first light guide tube is fixed to a mobile laser generator, and the second light guide tube is fixed to a fixed laser receiver amplifier processor. The first light guide tube has a first inclined interface, and the second light guide tube has a second inclined interface. The first and second inclined interfaces are matched and can be connected by a mating sealing ring. The first protective cover mechanism is disposed on the first light guide tube and is used to open and close the optical path of the first light guide tube. The second protective cover mechanism is disposed on the second light guide tube and is used to open and close the optical path of the second light guide tube. The protective cover linkage mechanism includes a contact head fixed on the second light guide tube and a sliding sleeve assembly disposed on the first light guide tube. The sliding sleeve assembly includes a sliding sleeve, a sliding shaft, and a compression spring. The sliding shaft is slidably fitted inside the sleeve via a compression spring, and the upper end of the sliding shaft corresponds to and matches the contact head. The first protective cover mechanism includes: a first protective cover, a rotating arm, a rotating shaft, and a first sealing ring. The rotating shaft is horizontally positioned at the upper port of the first light guide tube. The rotating arm can rotate around the rotating shaft and has a long arm end and a short arm end. The long arm end is fixedly connected to the first protective cover, and the short arm end is hinged to the lower end of the sliding shaft. The first sealing ring is positioned on the first inclined surface interface of the first light guide tube. The second protective cover mechanism includes: a second protective cover, a torsion spring hinge, and a second sealing ring. One end of the torsion spring hinge is fixed to the upper port of the second light guide tube, and the other end is connected to the second protective cover and provides closing torque to the second protective cover. The second sealing ring is positioned on the second inclined surface interface of the second light guide tube. The extension direction of the first inclined surface interface forms a 45-degree angle with the extension direction of the light path.