Splicing type grating adjusting frame

Abstract

The utility model discloses a splicing type grating adjusting frame which comprises a square cylinder, a through opening is formed in the right side face of the square cylinder, a connecting block is connected to the inner wall of the through opening in a sliding mode, a first threaded hole is formed in the upper surface of the connecting block, an inserting hole is formed in the upper surface of the connecting block, and a second threaded hole is formed in the lower surface of the inserting hole. The inner top wall of the square cylinder is rotationally connected with a threaded adjusting rod through a bearing, the bottom end of the threaded adjusting rod penetrates through the first threaded hole and extends to the position below the first threaded hole, and the threaded adjusting rod is in threaded connection with the first threaded hole. According to the device, through cooperation of a threaded adjusting rod and a connecting block, a concave plate can drive grating mounting bases to conduct height adjustment, and through cooperation of a right-hand threaded rod and a right-hand threaded rod and a second threaded hole, two mounting plates can drive the grating mounting bases to be close to each other and away from each other; therefore, the interval between the nano gratings can be adjusted, and the diffraction grating is more convenient to debug.

Description

Technical Field

[0001] The utility model relates to the field of diffraction gratings, in particular to a spliced ​​grating adjustment frame. Background Art

[0002] Diffraction gratings are optical elements composed of periodic structures at the micrometer and nanometer scales. By finely adjusting the structural parameters of a diffraction grating, functions such as light control, polarization selection, optical waveguiding, and beam splitting can be achieved. Diffraction gratings have a wide range of applications in optical communications, optical sensing, and optical information processing. Diffraction gratings must be mounted on an adjustment stand when in use.

[0003] After searching, the Chinese patent with publication number CN214751006U discloses a grating adjustment bracket, which corresponds to the grating and includes a mounting seat, a vertical bracket installed on the mounting seat, and the bracket is connected to a vertical protective cover through a movable connecting piece; the grating is installed in the protective cover. The bracket is made of a metal tube. Several reinforcing plates are provided between the metal tube and the mounting seat. The flange and connecting ring of the utility model realize the adjustable position of the protective cover, which can be raised and lowered and rotated, achieving a high degree of adjustability of the grating position, thereby greatly improving the convenience of grating debugging application. At the same time, the bracket as a whole is simple and practical, with stable working performance and strong reliability.

[0004] The above solution can adjust the grating position, but during use, it is impossible to adjust the spacing between gratings while adjusting the grating height, so that the adjustment effect of the grating coupling efficiency or the splitting intensity is poor.

[0005] To this end, we propose a spliced ​​grating adjustment frame to solve the above problems. Utility Model Content

[0006] The purpose of the present invention is to provide a spliced ​​grating adjustment frame to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A spliced ​​grating adjustment frame, comprising a square tube, a through opening on the right side of the square tube, a connecting block slidably connected to the inner wall of the through opening, a first threaded hole on the upper surface of the connecting block, a socket on the upper surface of the connecting block, a threaded adjustment rod rotatably connected to the inner top wall of the square tube through a bearing, the bottom end of the threaded adjustment rod passes through the first threaded hole and extends to the bottom of the first threaded hole, the threaded adjustment rod is threadedly connected to the first threaded hole, a concave plate is provided on the right side of the connecting block, and a support is fixedly connected to the left side of the concave plate A support plate, the bottom surface of the support plate is fixedly connected to a plug rod, the bottom end of the plug rod passes through the socket and extends to the bottom of the socket, the left side of the concave plate contacts the right side of the connecting block, two mounting plates are provided inside the concave plate, the right side of each mounting plate is fixedly connected to a grating mounting seat, and the upper surface of each mounting plate is provided with a second threaded hole, the inner walls of the two second threaded holes are commonly threadedly connected to positive and negative threaded rods, and the two ends of the positive and negative threaded rods are rotatably connected to the inner top wall and the inner bottom wall of the concave plate through two bearings.

[0009] In a further embodiment, a limiting ring is fixedly connected to the outer surface of the forward and reverse threaded rod, and the limiting ring is located between the two mounting plates.

[0010] In a further embodiment, a fixing seat is fixedly mounted on the upper surface of the support plate by two bolts, and the fixing seat is fixedly mounted to the left side of the concave plate by two bolts.

[0011] In a further embodiment, a sliding hole is opened on the upper surface of the connecting block, the inner wall of the sliding hole is slidably connected to a sliding rod, and the two ends of the sliding rod are fixedly connected to the inner top wall and the inner bottom wall of the through opening respectively.

[0012] In a further embodiment, two groups of connecting plates are fixedly connected to the left side of the square tube, and a mounting hole is provided on the right side of each connecting plate.

[0013] In a further embodiment, a limiting plate is provided in front of the connecting block and at the rear of the connecting block, and the right sides of the two limiting plates are fixedly connected to the left side of the concave plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The device is provided with a threaded adjustment rod and a connecting block, so that the concave plate can drive the grating mounting seat to adjust the height. Moreover, by utilizing the cooperation of the positive and negative threaded rods and the second threaded hole, the two mounting plates can drive the grating mounting seats to move closer to each other or move the two grating mounting seats away from each other, thereby adjusting the interval between the diffraction gratings and making the debugging of the diffraction gratings more convenient.

[0016] The device is provided with a socket and a plug rod, which can facilitate the disassembly and splicing of the concave plate, so that the staff can easily carry out maintenance after the device fails. The limit plate can be used in conjunction with the connecting plate to limit the concave plate to prevent the concave plate from shaking. The slide rod and the slide hole can be used to limit the connecting block to prevent the connecting block from shaking during the up and down movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the spliced ​​grating adjustment frame.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the side view of the spliced ​​grating adjustment frame.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the top cross-section of the spliced ​​grating adjustment frame.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the side view of the concave plate in the spliced ​​grating adjustment frame.

[0021] In the figure: 1. Square tube; 2. Connecting plate; 3. Connecting block; 4. Threaded adjustment rod; 5. Through port; 6. Threaded adjustment rod; 7. Concave plate; 8. Grating mounting seat; 9. Limit plate; 10. Mounting plate; 11. Second threaded hole; 12. Limiting ring; 13. Sliding rod; 14. Sliding hole; 15. Insertion hole; 16. Fixing seat; 17. Support plate; 18. Insertion rod; 19. First threaded hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4In the present utility model, a spliced ​​grating adjustment frame includes a square tube 1, a through opening 5 is opened on the right side of the square tube 1, a connecting block 3 is slidably connected to the inner wall of the through opening 5, a first threaded hole 19 is opened on the upper surface of the connecting block 3, a socket 15 is opened on the upper surface of the connecting block 3, and a threaded adjustment rod 4 is rotatably connected to the inner top wall of the square tube 1 through a bearing. The bottom end of the threaded adjustment rod 4 passes through the first threaded hole 19 and extends to the bottom of the first threaded hole 19. The threaded adjustment rod 4 is threadedly connected to the first threaded hole 19. A concave plate 7 is provided on the right side of the connecting block 3, and a support is fixedly connected to the left side of the concave plate 7. The support plate 17 and the bottom surface of the support plate 17 are fixedly connected with an insertion rod 18, the bottom end of the insertion rod 18 passes through the insertion hole 15 and extends to the bottom of the insertion hole 15, the left side of the concave plate 7 is in contact with the right side of the connecting block 3, and two mounting plates 10 are provided inside the concave plate 7. The right side of each mounting plate 10 is fixedly connected to the grating mounting seat 8, and the upper surface of each mounting plate 10 is provided with a second threaded hole 11. The inner walls of the two second threaded holes 11 are commonly threadedly connected with the positive and negative threaded rods 6, and the two ends of the positive and negative threaded rods 6 are rotatably connected to the inner top wall and the inner bottom wall of the concave plate 7 through two bearings.

[0024] In this embodiment, the outer surface of the forward and reverse threaded rod 6 is fixedly connected to a limiting ring 12, and the limiting ring 12 is located between the two mounting plates 10. The limiting ring 12 can limit the two mounting plates 10 to prevent the mounting plates 10 from colliding with each other. The upper surface of the support plate 17 is fixedly installed with a fixing seat 16 by two bolts, and the fixing seat 16 is fixed to the left side of the concave plate 7 by two bolts. The fixing seat 16 can be reinforced to prevent the support plate 17 from deformation after long-term use.

[0025] In this embodiment, a sliding hole 14 is provided on the upper surface of the connecting block 3, and a sliding rod 13 is slidably connected to the inner wall of the sliding hole 14. The two ends of the sliding rod 13 are respectively fixedly connected to the inner top wall of the through opening 5 and the inner bottom wall of the through opening 5. The sliding hole 14 and the sliding rod 13 can limit the connecting block 3 to prevent the connecting block 3 from loosening. Two sets of connecting plates 2 are fixedly connected to the left side of the square tube 1. The right side of each connecting plate 2 is provided with a mounting hole. The square tube 1 can be installed by providing a connecting plate 2 to position the device to prevent it from loosening. The front of the connecting block 3 and the rear of the connecting block 3 are both provided with a limiting plate 9. The right sides of the two limiting plates 9 are fixedly connected to the left side of the concave plate 7. The limiting plate 9 can limit the concave plate 7 to prevent the concave plate 7 from rotating.

[0026] The working principle of this utility model is:

[0027] When in use, the device is installed at a specified position through the connecting plate 2, and then the diffraction grating is installed inside the grating mounting seat 8. By rotating the threaded adjustment rod 4, the threaded adjustment rod 4 is matched with the first threaded hole 19 to control the connection block 3 to move upward, so that the height of the concave plate 7 and the diffraction grating can be adjusted. By rotating the forward and reverse threaded rods 6, the forward and reverse threaded rods 6 are matched with the second threaded hole 11 to control the two mounting plates 10 to move closer to or farther away from each other, so that the interval between the two diffraction gratings can be adjusted.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A spliced ​​grating adjustment frame, characterized by: The invention comprises a square tube (1), wherein a through opening (5) is provided on the right side of the square tube (1), a connecting block (3) is slidably connected to the inner wall of the through opening (5), a first threaded hole (19) is provided on the upper surface of the connecting block (3), a plug hole (15) is provided on the upper surface of the connecting block (3), a threaded adjustment rod (4) is rotatably connected to the inner top wall of the square tube (1) through a bearing, the bottom end of the threaded adjustment rod (4) passes through the first threaded hole (19) and extends to the bottom of the first threaded hole (19), the threaded adjustment rod (4) is threadedly connected to the first threaded hole (19), a concave plate (7) is provided on the right side of the connecting block (3), a support plate (17) is fixedly connected to the left side of the concave plate (7), and the The bottom surface of the support plate (17) is fixedly connected with an insertion rod (18), the bottom end of the insertion rod (18) passes through the insertion hole (15) and extends to the bottom of the insertion hole (15), the left side of the concave plate (7) contacts the right side of the connecting block (3), two mounting plates (10) are provided inside the concave plate (7), the right side of each mounting plate (10) is fixedly connected with a grating mounting seat (8), the upper surface of each mounting plate (10) is provided with a second threaded hole (11), the inner walls of the two second threaded holes (11) are commonly threadedly connected with a positive and negative threaded rod (6), and the two ends of the positive and negative threaded rod (6) are rotatably connected to the inner top wall and the inner bottom wall of the concave plate (7) through two bearings.

2. The spliced ​​grating adjustment mount according to claim 1, characterized in that: The outer surface of the forward and reverse threaded rod (6) is fixedly connected to a limiting ring (12), and the limiting ring (12) is located between the two mounting plates (10).

3. The spliced ​​grating adjustment frame according to claim 1, characterized in that: A fixing seat (16) is fixedly mounted on the upper surface of the support plate (17) via two bolts, and the fixing seat (16) is fixedly mounted on the left side of the concave plate (7) via two bolts.

4. The spliced ​​grating adjustment frame according to claim 1, characterized in that: A sliding hole (14) is provided on the upper surface of the connecting block (3), and a sliding rod (13) is slidably connected to the inner wall of the sliding hole (14), and the two ends of the sliding rod (13) are fixedly connected to the inner top wall and the inner bottom wall of the through opening (5) respectively.

5. The spliced ​​grating adjustment frame according to claim 1, characterized in that: Two groups of connecting plates (2) are fixedly connected to the left side of the square tube (1), and a mounting hole is provided on the right side of each connecting plate (2).

6. The spliced ​​grating adjustment frame according to claim 1, characterized in that: Limiting plates (9) are provided in front of the connecting block (3) and at the rear of the connecting block (3), and the right sides of the two limiting plates (9) are fixedly connected to the left side of the concave plate (7).

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