Safety protection device of semiconductor laser

Abstract

The utility model relates to a safety protection device of a semiconductor laser, which comprises a semiconductor laser body, a control button and a laser head which are arranged on the semiconductor laser body, and a first protection shell and a second protection shell which are covered outside the semiconductor laser body, the first protective shell and the second protective shell are arranged in parallel, fixing frames are installed outside the first protective shell and the second protective shell, fixing holes which are arranged correspondingly are formed in the four corners of the two fixing frames, and bolts are screwed between every two corresponding fixing holes. The baffle blocks one side of the protective cover, and the operation port and the opening are staggered, so that the opening is blocked under the action of the moving plate, the control button and the laser head are prevented from being exposed, the use safety of the semiconductor laser is improved, and the laser head is prevented from being damaged due to collision.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductor laser protection, and in particular relates to a safety protection device for a semiconductor laser. Background Art

[0002] Semiconductor lasers, also known as laser diodes, use semiconductor materials as their working medium. Due to differences in material structure, the specific process of laser generation varies depending on the type. Common working materials include gallium arsenide, cadmium sulfide, indium phosphide, and zinc sulfide. Excitation methods include electrical injection, electron beam excitation, and optical pumping. Semiconductor laser devices can be categorized as homojunction, single heterojunction, and double heterojunction. Homojunction and single heterojunction lasers are mostly pulsed devices at room temperature, while double heterojunction lasers can achieve continuous operation at room temperature.

[0003] Existing semiconductor lasers lack certain safety protection devices during use. When the semiconductor laser is not in use, the control button and laser head of the existing semiconductor laser are exposed to the outside. When the staff accidentally touches the control button, the semiconductor laser will be turned on. The rays generated at this time may be accidentally emitted, causing harm to others. At the same time, the exposed laser head is extremely susceptible to collision and damage. Utility Model Content

[0004] The purpose of this utility model is to provide a safety protection device for semiconductor lasers with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A safety protection device for a semiconductor laser comprises a semiconductor laser body, a control button and a laser head arranged on the semiconductor laser body, and a first protective shell and a second protective shell arranged outside the semiconductor laser body, wherein a protective cover arranged outside the laser head is installed on one side of the first protective shell, an opening corresponding to the control button is provided on the top of the first protective shell, two elastic mechanisms are installed on the top of the first protective shell, a movable plate for blocking the opening is jointly installed on the top of the two elastic mechanisms, an operating port for cooperating with the opening is provided on the top of the movable plate, a baffle for sealing one side of the protective cover is hingedly connected to one side of the movable plate, a fixing mechanism for fixing the baffle is installed on one side of the first protective shell, and a limiting mechanism for limiting the movable plate is installed on the top of the first protective shell.

[0007] As a further optimization scheme of the present invention, a fixing frame is installed on the outside of the first protective shell and the second protective shell, and fixing holes corresponding to each other are opened at the four corners of the two fixing frames. A bolt is screwed between the two corresponding fixing holes, and a nut is screwed on the outside of the bolt to lock the two fixing frames.

[0008] As a further optimization scheme of the present invention, the elastic mechanism includes a strip groove opened on the top of the first protective shell, a fixed rod installed in the strip groove, and a spring and a moving block sleeved on the outside of the fixed rod, the two ends of the spring are respectively fixedly connected to one side of the moving block and the inner wall of the strip groove, and the top of the moving block is fixedly connected to the bottom of the moving plate.

[0009] As a further optimization scheme of the present invention, the fixing mechanism includes a mounting plate installed on one side of the first protective shell and located below the protective cover, a first magnetic strip installed on one side of the mounting plate, a mounting groove opened on one side of the baffle, and a second magnetic strip installed in the mounting groove and used in conjunction with the first magnetic strip.

[0010] As a further optimization scheme of the present invention, the limiting mechanism includes a limiting rod hinged on both sides of the movable plate, two limiting blocks installed on the top of the first protective shell, a card slot opened on one side of the limiting block, and a card rod installed on one side of the limiting rod and used in conjunction with the card slot.

[0011] As a further optimized solution of the present invention, the card slot is located on the side facing the second protective shell, and the card rod is located on the side facing the protective cover.

[0012] The beneficial effect of the present invention is that when the semiconductor laser is not needed during use, the baffle will block one side of the protective cover, and the operating port will be misaligned with the opening, so that the opening will be blocked under the action of the movable plate, thereby preventing the control button and the laser head from being exposed to the outside, which not only improves the safety of the use of the semiconductor laser, but also prevents the laser head from being damaged by collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a first three-dimensional structural diagram of the utility model;

[0014] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0015] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model;

[0016] Figure 4 This utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 5 This utility model Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0018] Figure 6 This utility model Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0019] Figure 7 This is a third three-dimensional structural diagram of the present invention.

[0020] In the figure: 1. First protective shell; 2. Second protective shell; 3. Strip groove; 4. Moving plate; 5. Operating port; 6. Baffle; 7. Mounting plate; 8. Limit block; 9. Protective cover; 10. Fixed frame; 11. Control button; 12. Semiconductor laser body; 13. Fixed rod; 14. Spring; 15. Moving block; 16. Fixed rod; 17. Second magnetic strip; 18. First magnetic strip; 19. Card rod; 20. Card slot. DETAILED DESCRIPTION

[0021] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] like Figure 1 - Figure 7As shown, a safety protection device for a semiconductor laser comprises a semiconductor laser body 12, a control button 11 and a laser head arranged on the semiconductor laser body 12, and a first protective shell 1 and a second protective shell 2 arranged outside the semiconductor laser body 12. A fixing frame 10 is installed on the outside of the first protective shell 1 and the second protective shell 2. The four corners of the two fixing frames 10 are provided with fixing holes corresponding to each other. A bolt is screwed between the two corresponding fixing holes, and a nut for locking the two fixing frames 10 is screwed on the outside of the bolt. When the first protective shell 1 and the second protective shell 2 need to be fixed, the fixing frame 10 is screwed on the outside of the first protective shell 1 and the second protective shell 2. When disassembling the protective shell 1 and the second protective shell 2, the nut can be unscrewed from the bolt, and then the bolt can be removed from the two corresponding fixing holes by screwing it. When all the bolts are removed, the first protective shell 1 and the second protective shell 2 can be disassembled. In this way, when the first protective shell 1 and the second protective shell 2 are damaged, new protective shells can be replaced. A protective cover 9 is installed on one side of the first protective shell 1 to cover the outside of the laser head. A circular opening is opened on one side of the protective cover 9 to facilitate the operation of the laser head. An opening corresponding to the control button 11 is opened on the top of the first protective shell 1. Two strip grooves 3 are installed on the top of a protective shell 1, and a fixed rod 13 is installed in the strip groove 3. The outer sleeve of the fixed rod 13 is provided with a spring 14 and a moving block 15. The two ends of the spring 14 are fixedly connected to one side of the moving block 15 and the inner wall of the strip groove 3 respectively. The top of the moving block 15 is fixedly connected to the bottom of the moving plate 4. The top of the moving plate 4 is provided with an operating port 5 used in conjunction with the opening. A baffle 6 is hinged on one side of the moving plate 4 to seal one side of the protective cover 9. A mounting plate 7 located below the protective cover 9 is installed on one side of the first protective shell 1. A first magnetic strip 18 and a mounting groove are provided on one side of the baffle 6, and a second magnetic strip 17 for use with the first magnetic strip 18 is installed in the mounting groove. A limiting mechanism for limiting the movable plate 4 is installed on the top of the first protective shell 1. The limiting mechanism includes a limiting rod 16 hinged on both sides of the movable plate 4, two limiting blocks 8 installed on the top of the first protective shell 1, a slot 20 provided on one side of the limiting block 8, and a card rod 19 installed on one side of the limiting rod 16 and used in conjunction with the slot 20. The slot 20 is located on the side facing the second protective shell 2, and the card rod 19 is located on the side facing the protective cover 9.

[0023] It should be noted that the safety protection device of the semiconductor laser (such as Figure 7As shown) When the semiconductor laser needs to be used, the fixing rod 16 can be rotated so that the fixing rod 16 and the movable plate 4 are in a vertical state, and the fixing rod 16 is pulled toward the side close to the second protective shell 2. At this time, the movable block 15 will move outside the fixing rod 13 and compress the spring 14 to pull the fixing rod 16 to one side of the limit block 8. Then the fixing rod 16 is rotated so that one side of the fixing rod 16 fits with one side of the limit block 8. At this time, the clamping rod 19 will be stuck in the fixing groove 20, the operating port 5 will correspond to the opening, and the operating button 11 will be exposed to the outside. In the process of pulling the movable plate 4, under the action of the pulling force, the movable plate 4 will pull the baffle 6 to move, and the baffle 6 will be turned from a vertical state to a horizontal state, thereby opening one side of the protective cover 20 and exposing the laser head to the outside. Figure 1 (As shown) When the semiconductor laser is not needed, the fixing rod 16 can be rotated to separate the fixing rod 16 from the limit 8. At this time, under the action of the elastic force of the spring 14, the moving block 15 will drive the moving plate 4 to move toward the side close to the protective cover 20, and then the baffle 6 will move toward the side close to the protective cover 20. When the baffle 6 moves to one side of the protective cover 20, under the action of the gravity of the baffle 6, the baffle 6 will flip downward, and under the attraction of the first magnetic strip 18 and the second magnetic strip 17, the baffle 6 will be fixed, thereby blocking one side of the protective cover 20. When the moving plate 4 moves, the operating port 5 will be misaligned with the opening, and the opening will be blocked under the action of the moving plate 4.

[0024] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A safety protection device for a semiconductor laser, comprising a semiconductor laser body (12), a control button (11) and a laser head arranged on the semiconductor laser body (12), and a first protective shell (1) and a second protective shell (2) arranged outside the semiconductor laser body (12), characterized in that: A protective cover (9) is installed on one side of the first protective shell (1) and is arranged on the outside of the laser head. An opening corresponding to the control button (11) is provided on the top of the first protective shell (1). Two elastic mechanisms are installed on the top of the two elastic mechanisms. A movable plate (4) for blocking the opening is installed on the top of the two elastic mechanisms. An operating port (5) used in conjunction with the opening is provided on the top of the movable plate (4). A baffle (6) for sealing one side of the protective cover (9) is hinged on one side of the movable plate (4). A fixing mechanism for fixing the baffle (6) is installed on one side of the first protective shell (1). A limiting mechanism for limiting the movable plate (4) is installed on the top of the first protective shell (1).

2. The semiconductor laser safety protection device according to claim 1, characterized in that: A fixing frame (10) is installed on the outside of the first protective shell (1) and the second protective shell (2), and fixing holes corresponding to each other are opened at the four corners of the two fixing frames (10), a bolt is screwed between the two corresponding fixing holes, and a nut for locking the two fixing frames (10) is screwed on the outside of the bolt.

3. The semiconductor laser safety protection device according to claim 1, characterized in that: The elastic mechanism comprises a strip groove (3) provided on the top of the first protective shell (1), a fixed rod (13) installed in the strip groove (3), and a spring (14) and a moving block (15) sleeved on the outside of the fixed rod (13); the two ends of the spring (14) are respectively fixedly connected to one side of the moving block (15) and the inner wall of the strip groove (3); the top of the moving block (15) is fixedly connected to the bottom of the moving plate (4).

4. The semiconductor laser safety protection device according to claim 1, characterized in that: The fixing mechanism comprises a mounting plate (7) mounted on one side of the first protective shell (1) and located below the protective cover (9), a first magnetic strip (18) mounted on one side of the mounting plate (7), a mounting groove provided on one side of the baffle (6), and a second magnetic strip (17) mounted in the mounting groove and used in conjunction with the first magnetic strip (18).

5. The semiconductor laser safety protection device according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (16) hinged on both sides of the movable plate (4), two limiting blocks (8) mounted on the top of the first protective shell (1), a card slot (20) provided on one side of the limiting block (8), and a card rod (19) mounted on one side of the limiting rod (16) and used in conjunction with the card slot (20).

6. The semiconductor laser safety protection device according to claim 5, characterized in that: The clamping slot (20) is located on a side facing the second protective shell (2), and the clamping rod (19) is located on a side facing the protective cover (9).

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