Laser protection storage cylinder device

Abstract

The invention discloses a laser protection storage barrel device which is structurally characterized in that a laser cooling module is a conical barrel with an opening in the large end, and a first columnar barrel is arranged at the opening end; the laser absorber is a conical barrel with an opening in the large end, a second columnar barrel is arranged at the opening end, and an outer flange ring is arranged at the port of the second columnar barrel to serve as a top cover; the laser absorber is sleeved in an inner cavity of the laser cooling module, the laser absorber and the laser cooling module are in clearance fit, and the top cover presses the end face of a port of the first cylindrical barrel and is fixedly connected through a top cover screw; cooling water is injected into a clamping cavity between the laser absorber and the laser cooling module, a water inlet is formed in one side of the first columnar cylinder, and a water outlet is formed in the other side of the first columnar cylinder and used for injecting and discharging the cooling water; a first light filtering device, a second light filtering device and a third light filtering device are coaxially arranged in an inner cavity of the laser absorber at intervals. The device is simple in structure, convenient to use and suitable for storage and protection of various laser devices.

Description

Technical Field

[0001] The invention belongs to the technical field of laser safety protection, and relates to a laser protection storage tube device, which is used for safely collecting and processing laser beam energy in optical experiments. Background Art

[0002] In optical experiments, the use of laser beams is widespread and necessary, but there are also certain safety risks. Excessive laser beams may be generated during the experiment. If they are not collected and processed in time, they may not only cause damage to the eyes of the experimenters, but also interfere with the experimental equipment. Summary of the invention

[0003] (I) Purpose of the invention

[0004] The purpose of the present invention is to design a laser protection storage tube device to ensure experimental safety and improve experimental efficiency.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a laser protection storage tube device, which includes a laser cooling module 1, a laser absorber 2, a water outlet 3, a top cover 4, a top cover screw 6, a water inlet 7, a first filter device 8, a second filter device 9, and a third filter device 10; the laser cooling module 1 is a conical tube with a large end opening, and a first cylindrical tube is provided at the open end; the laser absorber 2 is a conical tube with a large end opening, and a second cylindrical tube is provided at the open end, and an outer flange ring is provided at the port of the second cylindrical tube as a top cover 4; the laser absorber 2 is sleeved in the inner cavity of the laser cooling module 1, and the gap between the two is matched, and the top cover 4 is pressed on the end surface of the port of the first cylindrical tube and fixedly connected by the top cover screw 6; cooling water is injected into the clamping cavity between the laser absorber 2 and the laser cooling module 1, and a first cylindrical tube is opened on one side A water inlet 7 and a water outlet 3 are provided on the other side for the injection and discharge of cooling water; a first filter device 8, a second filter device 9, and a third filter device 10 are coaxially arranged in the inner cavity of the laser absorber 2 at intervals, and the laser beam reflects the near-infrared laser to the inner wall of the laser absorber 2 through the first filter device 8 for absorption; the subsequent laser beam continues to reflect the mid-infrared laser to the inner wall of the laser absorber 2 through the second filter device 9 for further absorption; the remaining laser continues to reflect the far-infrared laser to the inner wall of the laser absorber 2 for absorption through the third filter device 10; the remaining ultraviolet light and visible light with a small amount of heat are absorbed at the bottom of the laser absorber 2, and the heat absorbed by the laser absorber 2 is absorbed and quickly taken away by the circulating cooling water in the cavity between the laser cooling module 1 and the laser absorber 2, thereby realizing the absorption of lasers of different wavelengths.

[0007] Among them, an annular groove is opened on the end surface of the first columnar tube, and a sealing strip 5 is installed in the annular groove.

[0008] The water inlet 7 is arranged below the laser cooling module 1 , and the water outlet 3 is arranged above the laser cooling module 1 , so that the cooling water enters from a low position and exits from a high position.

[0009] The inner wall surface 2 - 1 of the laser absorber 2 is provided with a spiral groove to form a threaded absorption surface.

[0010] Among them, the first filtering device 8 includes a positioning pin 8-1, a frame 8-2, and a filter 8-3. The upper and lower ends of the frame 8-2 are connected to the pin holes on the inner wall of the laser absorber 2 through the positioning pin 8-1. The filter 8-3 is installed on the frame 8-2 and reinforced with glue.

[0011] The structures of the second filter device 9 and the third filter device 10 are the same as that of the first filter device 8. The sizes of the second filter device 9, the third filter device 10 and the first filter device 8 are different, and they are connected to the laser absorber 2 in the same way.

[0012] Among them, the filters in the first filter device 8, the second filter device 9, and the third filter device 10 have the same angle with the wide aperture of the laser absorber 2, which is 30° to 60°, and the center distances between the first filter device 8 and the second filter device 9, and the center distances between the second filter device 9 and the third filter device 10 are equal.

[0013] Among them, the filters in the first filter device 8, the second filter device 9, and the third filter device 10 have an angle of 45° with the wide aperture of the laser absorber 2, the center distance between the first filter device 8 and the second filter device 9 is 60 mm, the center distance between the second filter device 9 and the third filter device 10 is 60 mm, the filter diameter of the first filter device 8 is 160 mm, the filter diameter of the second filter device 9 is 120 mm, and the filter diameter of the third filter device 10 is 80 mm.

[0014] The filters of the first filter device 8 , the second filter device 9 , and the third filter device 10 are all infrared filters.

[0015] Among them, the filter of the first filter device 8 blocks near-infrared laser with a wavelength of 700-1400nm, the filter of the second filter device 9 blocks mid-infrared laser with a wavelength of 1400-3000nm, and the filter of the third filter device 10 blocks far-infrared laser with a wavelength of 3000nm-1mm.

[0016] (III) Beneficial effects

[0017] The laser protection storage tube device provided by the above technical solution has the following beneficial effects:

[0018] 1. The absorption layer effectively absorbs the laser beam, which reduces the energy density of the laser beam and thus reduces the risk of burning or damaging the surface of the object.

[0019] 2. The heat dissipation layer scatters the laser beam into an invisible or non-dangerous form, further reducing the risk of injury to the user.

[0020] 3. The cylinder is made of high temperature resistant and corrosion resistant materials, with good mechanical strength and stability, ensuring the service life and safety of the device.

[0021] 4. The device has a simple structure and is easy to use, suitable for the storage and protection of various laser equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a laser protection storage tube device of the present invention.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of a laser protection storage tube device of the present invention.

[0024] Figure 3 The present invention is a schematic diagram of the structure of a filter device of a laser protection storage tube device. DETAILED DESCRIPTION

[0025] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0026] Reference Figures 1 to 3As shown, the laser protection storage tube device of this embodiment includes a laser cooling module 1, a laser absorber 2, a water outlet 3, a top cover 4, a top cover screw 6, a water inlet 7, a first filter device 8, a second filter device 9, and a third filter device 10; the laser cooling module 1 is a conical tube with a large end opening, and a first cylindrical tube is provided at the open end; the laser absorber 2 is a conical tube with a large end opening, and a second cylindrical tube is provided at the open end, and an outer flange ring is provided at the port of the second cylindrical tube as a top cover 4; the laser absorber 2 is sleeved in the inner cavity of the laser cooling module 1, and the gap between the two is matched, and the top cover 4 is pressed on the end surface of the port of the first cylindrical tube and fixedly connected by the top cover screw 6; cooling water is injected into the clamping cavity between the laser absorber 2 and the laser cooling module 1, and a water inlet 7 is opened on one side of the first cylindrical tube, and the other side is provided with a water inlet 7. A water outlet 3 is provided on one side for injecting and discharging cooling water; a first filter device 8, a second filter device 9, and a third filter device 10 are coaxially arranged in the inner cavity of the laser absorber 2 at intervals, and the laser beam reflects the near-infrared laser to the inner wall of the laser absorber 2 through the first filter device 8 for absorption; the subsequent laser beam continues to reflect the mid-infrared laser to the inner wall of the laser absorber 2 through the second filter device 9 for further absorption; the remaining laser continues to reflect the far-infrared laser to the inner wall of the laser absorber 2 for absorption through the third filter device 10; the remaining ultraviolet light and visible light with a small amount of heat are absorbed at the bottom of the laser absorber 2, and the heat absorbed by the laser absorber 2 is absorbed and quickly taken away by the circulating cooling water in the cavity between the laser cooling module 1 and the laser absorber 2, thereby realizing the absorption of lasers of different wavelengths.

[0027] An annular groove is provided on the end surface of the first cylindrical tube, and a sealing strip 5 is installed in the annular groove to strengthen the seal between the end surface of the first cylindrical tube and the top cover 4.

[0028] The water inlet 7 is arranged below the laser cooling module 1, and the water outlet 3 is arranged above the laser cooling module 1. The low-in and high-out method is adopted to ensure that the cooling water is in full contact with the outer wall of the laser absorber 2, thereby achieving a good heat exchange effect.

[0029] The shell of the laser absorber 2 is a tapered structure with a wide outer surface and a narrow inner surface. It is processed by integral casting and is made of high-efficiency heat-conducting materials. The inner wall surface 2-1 includes a spiral groove to form a threaded absorption surface, which increases the heating area and fully absorbs the laser heat. Preferably, the diameter ratio of the wide mouth to the narrow mouth is 1 to 3 times. In this embodiment, the diameter ratio of the wide mouth to the narrow mouth is 2, the center distance between the wide mouth and the narrow mouth is 300mm, the wide mouth diameter is 260mm, the narrow mouth diameter is 130mm, the spiral starting diameter is the wide mouth diameter, and the ending diameter is consistent with the narrow mouth diameter. The pitch is 5mm, the spiral angle is 30°, the lead is 100mm, the spiral length is 300mm, the surface roughness of the spiral groove is Ra1.6μm, there are no scratches and burrs, and the surface is rust-proofed.

[0030] The first filter device 8 includes a positioning pin 8-1, a frame 8-2, and a filter 8-3. The upper and lower ends of the frame 8-2 are connected to the pin holes on the inner wall of the laser absorber 2 through the positioning pin 8-1. The filter 8-3 is installed on the frame 8-2 and reinforced with glue.

[0031] The first filter device 8, the second filter device 9, and the third filter device 10 have the same structure but different sizes, and are connected to the laser absorber 2 in the same way. Preferably, the filter 8-3 has an angle of 30° to 60° with the wide aperture of the laser absorber 2, and the center distances of the first filter device 8 and the second filter device 9, and the second filter device 9 and the third filter device 10 are equal. In this embodiment, the filter 8-3 has an angle of 45° with the wide aperture of the laser absorber 2, the center distance of the first filter device 8 and the second filter device 9 is 60 mm, the center distance of the second filter device 9 and the third filter device 10 is 60 mm, the filter diameter of the first filter device 8 is 160 mm, and the filter diameter of the second filter device 9 is 160 mm. The diameter is 120mm, the diameter of the filter of the third filter device 10 is 80mm, the filters of the first filter device 8, the second filter device 9 and the third filter device 10 are all infrared filters, and their main function is to evenly distribute the infrared laser with a large amount of heat to the inner wall 2-1 of the laser absorber 2. In this embodiment, the filter of the first filter device 8 blocks the near-infrared laser with a wavelength of 700-1400nm, the filter of the second filter device 9 blocks the mid-infrared laser with a wavelength of 1400-3000nm, and the filter of the third filter device 10 blocks the far-infrared laser with a wavelength of 3000nm-1mm. The remaining ultraviolet light and visible light with less heat are absorbed at the bottom of the laser absorber 2.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser protection storage tube device, characterized in that: The laser cooling module comprises a laser cooling module (1), a laser absorber (2), a water outlet (3), a top cover (4), a top cover screw (6), a water inlet (7), a first light filtering device (8), a second light filtering device (9), and a third light filtering device (10); the laser cooling module (1) is a conical tube with a large end opening, and a first columnar tube is provided at the open end; the laser absorber (2) is a conical tube with a large end opening, and a second columnar tube is provided at the open end, and an outer flange ring is provided at the port of the second columnar tube as a top cover (4); the laser absorber (2) is sleeved in the inner cavity of the laser cooling module (1), and the two are clearance-matched, and the top cover (4) is pressed on the end surface of the port of the first columnar tube and fixedly connected by the top cover screw (6); cooling water is injected into the clamping cavity between the laser absorber (2) and the laser cooling module (1), and a water inlet (7) is provided on one side of the first columnar tube, and a water inlet (7) is provided on the other side. The water outlet (3) is used for injecting and discharging cooling water; a first filter device (8), a second filter device (9), and a third filter device (10) are coaxially arranged in the inner cavity of the laser absorber (2) at intervals; the laser beam reflects near-infrared laser light through the first filter device (8) to the inner wall of the laser absorber (2) for absorption; the subsequent laser beam continues to reflect mid-infrared laser light through the second filter device (9) to the inner wall of the laser absorber (2) for further absorption; the remaining laser light continues to reflect far-infrared laser light through the third filter device (10) to the inner wall of the laser absorber (2) for absorption; the remaining ultraviolet light and visible light with a small amount of heat are absorbed at the bottom of the laser absorber (2); the heat absorbed by the laser absorber (2) is absorbed and quickly taken away by the circulating cooling water in the cavity between the laser cooling module (1) and the laser absorber (2), thereby achieving absorption of lasers of different wavelengths.

2. The laser protection storage tube device according to claim 1, characterized in that: An annular groove is provided on the end surface of the first columnar tube, and a sealing strip 5 is installed in the annular groove.

3. The laser protection storage tube device according to claim 2, characterized in that: The water inlet (7) is arranged below the laser cooling module (1), and the water outlet (3) is arranged above the laser cooling module (1), so that cooling water enters at a low level and exits at a high level.

4. The laser protection storage tube device according to claim 3, characterized in that: The inner wall surface (2-1) of the laser absorber (2) is provided with a spiral groove to form a spiral absorption surface.

5. The laser protection storage tube device according to claim 4, characterized in that: The first optical filter device (8) comprises a positioning pin (8-1), a lens frame (8-2), and an optical filter (8-3); the upper and lower ends of the lens frame (8-2) are connected to the pin holes on the inner wall of the laser absorber (2) through the positioning pin (8-1); the optical filter (8-3) is mounted on the lens frame (8-2) and reinforced by glue.

6. The laser protection storage tube device according to claim 5, characterized in that: The structures of the second optical filter device (9) and the third optical filter device (10) are the same as those of the first optical filter device (8). The sizes of the second optical filter device (9), the third optical filter device (10) and the first optical filter device (8) are different, and they are connected to the laser absorber (2) in the same way.

7. The laser protection storage tube device according to claim 6, characterized in that: The filters in the first filter device (8), the second filter device (9) and the third filter device (10) have the same included angle with the wide aperture of the laser absorber (2), which is 30° to 60°. The center distances between the first filter device (8) and the second filter device (9), and between the second filter device (9) and the third filter device (10) are equal.

8. The laser protection storage tube device according to claim 7, characterized in that: The included angle between the filters in the first filter device (8), the second filter device (9) and the third filter device (10) and the wide aperture surface of the laser absorber (2) is 45°, the center distance between the first filter device (8) and the second filter device (9) is 60 mm, the center distance between the second filter device (9) and the third filter device (10) is 60 mm, the filter diameter of the first filter device (8) is 160 mm, the filter diameter of the second filter device (9) is 120 mm, and the filter diameter of the third filter device (10) is 80 mm.

9. The laser protection storage tube device according to claim 7, characterized in that: The filters of the first filter device (8), the second filter device (9) and the third filter device (10) are all infrared filters.

10. The laser protection storage tube device according to claim 9, characterized in that: The filter of the first filter device (8) blocks near-infrared laser with a wavelength of 700-1400nm, the filter of the second filter device (9) blocks mid-infrared laser with a wavelength of 1400-3000nm, and the filter of the third filter device (10) blocks far-infrared laser with a wavelength of 3000nm-1mm.

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