Near-infrared low-noise photoelectric detection target surface

Abstract

The utility model discloses a near-infrared low-noise photoelectric detection target surface in the technical field of photoelectric detection, which comprises a photoelectric detector body, a mounting base and a photoelectric detection target surface, a knob is mounted on the side wall of the photoelectric detector body, the mounting base is mounted on the side of the photoelectric detector body, and the photoelectric detection target surface is fixedly mounted in an inner cavity of the mounting base. A second gear is fixedly installed on the lower wall of the third gear, a circular ring is installed on the side of the third gear, three moving grooves are evenly formed in the circular ring, teeth are arranged on the inner walls of the moving grooves, fourth gears are installed in the moving grooves, and the fourth gears are matched with the moving grooves. A fifth gear is fixedly installed on the lower wall of the fourth gear, a rack is installed on the side of the fifth gear, the fifth gear is meshed with the rack, and an installation ring is fixedly installed on the inner side of the circular ring.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric detection, in particular to a near-infrared low-noise photoelectric detection target surface. Background Art

[0002] The principle of photodetectors is that radiation causes a change in the electrical conductivity of the irradiated material. Photodetectors have a wide range of applications in various fields, both military and national economics. In the visible or near-infrared bands, they are primarily used for radiation measurement and detection, industrial automation, and photometry; in the infrared band, they are primarily used for missile guidance, infrared thermal imaging, and infrared remote sensing. Another application of photoconductors is as camera tube targets. To avoid image blur caused by the diffusion of photogenerated carriers, continuous thin-film targets are made of high-resistance polycrystalline materials, such as PbS-PbO and Sb2S3. Other materials can be inlaid with a target surface, with the entire target surface composed of approximately 100,000 individual detectors. Existing photodetection targets are fixed to the photodetector and cannot be replaced if damaged. Therefore, a near-infrared, low-noise photodetection target surface that can be quickly replaced is needed.

[0003] Based on this, the utility model designs a near-infrared low-noise photoelectric detection target surface to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a near-infrared low-noise photoelectric detection target surface to solve the problem in the above background technology that the existing photoelectric detection target surfaces are fixedly installed on the photoelectric detector and cannot be replaced when damaged.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a near-infrared low-noise photoelectric detection target surface, comprising a photoelectric detector body, a knob, a mounting base and a photoelectric detection target surface, wherein the side wall of the photoelectric detector body is mounted with a knob, the side of the photoelectric detector body is mounted with a mounting base, the inner cavity of the mounting base is fixedly mounted with the photoelectric detection target surface, a mounting hole is opened in the middle of the photoelectric detector body, the mounting hole cooperates with the mounting base, a No. 1 gear is mounted below the knob, a No. 3 gear is mounted on the side of the No. 1 gear, and a No. 2 gear is fixedly mounted on the lower wall of the No. 3 gear. The number one gear is meshed with the number three gear, a circular ring is installed on the side of the number two gear, and the side wall of the circular ring is provided with teeth. The number two gear is meshed with the circular ring, and the circular ring is evenly provided with three movable grooves, and the inner wall of the movable groove is provided with teeth. The number four gear is installed inside the movable groove, and the number four gear cooperates with the movable groove. The number five gear is fixedly installed on the lower wall of the number four gear, and a rack is installed on the side of the number five gear, and the number five gear is meshed with the rack. A mounting ring is fixedly installed on the inner side of the circular ring, and the mounting ring is provided with three limiting holes, and the limiting holes cooperate with the rack.

[0006] Preferably, three L-shaped protrusions are provided on the lower wall of the mounting base, three fixing rings are evenly provided on the outer wall of the mounting ring, the fixing rings cooperate with the mounting base, and three fixing holes are evenly provided on the lower wall of the mounting base, the fixing holes cooperate with the rack.

[0007] Preferably, the knob is fixedly connected to the No. 1 gear via a No. 1 bearing, the No. 1 bearing is rotatably mounted on the photoelectric detector body, the No. 2 gear lower wall is rotatably mounted with the No. 2 bearing, and the No. 3 bearing is rotatably mounted on the No. 5 gear lower wall.

[0008] Preferably, the outer wall of the knob is provided with uniform protrusions.

[0009] Preferably, protrusions are evenly arranged on the outer wall of the mounting base.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention completes the initial installation and fixation by matching the L-shaped protrusion provided on the mounting base with the mounting hole on the photoelectric detector body, and then rotating the L-shaped protrusion on the mounting base with the fixing ring on the mounting ring. The knob is then manually rotated to drive the internal gear to rotate. The gear is set through a multi-stage gear so that the rotation angle can be smaller to complete the installation. The rotation of the gear drives the rack to move, so that the rack is stuck in the limit hole in the mounting base to complete the second pool fixation. After the double fixed installation, the installation is more secure and safe, but the installation and disassembly can be quickly completed by rotation, which is convenient for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic diagram of the structure of the utility model from the main perspective;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model from a cross-sectional perspective;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model from a cross-sectional perspective;

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the installation base structure of the utility model.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1-photoelectric detector body, 2-knob, 3-mounting base, 4-photoelectric detection target surface, 5-gear No. 1, 6-gear No. 2, 7-gear No. 3, 8-ring, 9-gear No. 4, 10-gear No. 5, 11-rack, 12-moving groove, 13-limiting hole, 14-fixing ring, 15-bearing No. 1, 16-bearing No. 2, 17-bearing No. 3, 18-mounting ring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a near-infrared low-noise photoelectric detection target surface, comprising a photoelectric detector body 1, a knob 2, a mounting base 3 and a photoelectric detection target surface 4, the photoelectric detector body 1 is provided with a knob 2 on its side wall, the photoelectric detector body 1 is provided with a mounting base 3 on its side, the photoelectric detection target surface 4 is fixedly mounted on the inner cavity of the mounting base 3, the photoelectric detector body 1 is provided with a mounting hole in the middle, the mounting hole cooperates with the mounting base 3, a No. 1 gear 5 is installed below the knob 2, a No. 3 gear 7 is installed on the side of the No. 1 gear 5, a No. 2 gear 6 is fixedly mounted on the lower wall of the No. 3 gear 7, and the No. 1 gear 5 is provided with a mounting hole in the middle of the photoelectric detector body 1, the mounting hole cooperates with the mounting base 3, a No. 1 gear 5 is installed below the knob 2, a No. 3 gear 7 is installed on the side of the No. 1 gear 5, a No. 2 gear 6 is fixedly mounted on the lower wall of the No. 3 gear 7, and a ... It meshes with the third gear 7. A circular ring 8 is installed on the side of the second gear 6. The side wall of the circular ring 8 is provided with teeth. The second gear 6 meshes with the circular ring 8. The circular ring 8 is evenly provided with three movable grooves 12. The inner wall of the movable groove 12 is provided with teeth. The fourth gear 9 is installed inside the movable groove 12. The fourth gear 9 cooperates with the movable groove 12. The fifth gear 10 is fixedly installed on the lower wall of the fourth gear 9. A rack 11 is installed on the side of the fifth gear 10. The fifth gear 10 meshes with the rack 11. A mounting ring 18 is fixedly installed on the inner side of the circular ring 8. The mounting ring 18 has three limiting holes 13, and the limiting holes 13 cooperate with the rack 11.

[0021] Among them, three L-shaped protrusions are provided on the lower wall of the mounting base 3, and three fixing rings 14 are evenly provided on the outer wall of the mounting ring 18. The fixing ring 14 cooperates with the mounting base 3, and three fixing holes are evenly provided on the lower wall of the mounting base 3. The fixing holes cooperate with the rack 11. The preliminary installation and fixation can be completed by the mutual cooperation between the L-shaped protrusions and the fixing rings 14. The knob 2 is fixedly connected to the No. 1 gear 5 through the No. 1 bearing 15. The No. 1 bearing 15 is rotatably installed on the photoelectric detector body 1. The No. 2 gear 6 has a No. 2 bearing 16 rotatably installed on the lower wall, and the No. 3 bearing 17 is rotatably installed on the lower wall of the No. 5 gear 10. The outer wall of the knob 2 is provided with uniform protrusions. By setting the protrusions, the friction of the knob 2 is increased, making it less likely to slip. The outer wall of the mounting base 3 is evenly provided with protrusions. By setting the protrusions, the friction of the mounting base 3 is increased.

[0022] A specific application of this embodiment is: when the near-infrared low-noise photoelectric detection target surface is damaged and needs to be removed and replaced, the present invention manually rotates the knob 2, and the rotation of the knob 2 drives the No. 1 gear 5 to rotate, and the rotation of the No. 1 gear 5 drives the No. 3 gear 7 to rotate, and when the No. 3 gear 7 rotates, the No. 2 gear 6 rotates synchronously, and the rotation of the No. 2 gear 6 drives the ring 8 to rotate, and the rotation of the ring 8 causes the movable groove 12 to move, and the movement of the movable groove 12 drives the No. 4 gear 9 to rotate, and the rotation of the No. 4 gear 9 drives the No. 5 gear 10 to rotate, and the rotation of the No. 5 gear 10 drives the rack 11 to move, and the rack 11 moves out of the fixing hole in the mounting base 3 to cancel the fixation, and then manually rotate the mounting base 3 to cancel the fixation of the L-shaped protrusion on the lower wall of the mounting base 3 and the fixing ring 14 on the mounting ring 18, and then pull it upward to remove the damaged near-infrared low-noise photoelectric detection target surface, and then remove the functional The near-infrared low-noise photoelectric detection target surface that can be intact is manually placed in the mounting hole reserved in the mounting base 3, aligned with the notch, and the mounting base 3 is rotated so that the L-shaped protrusion on the lower wall of the mounting base 3 cooperates with the fixing ring 14 on the mounting ring 18 to complete the initial fixation, and then the knob 2 is manually rotated. The rotation of the knob 2 drives the No. 1 gear 5 to rotate, and the rotation of the No. 1 gear 5 drives the No. 3 gear 7 to rotate. When the No. 3 gear 7 rotates, the No. 2 gear 6 rotates synchronously, and the rotation of the No. 2 gear 6 drives the ring 8 to rotate. The rotation of the ring 8 moves the movable groove 12, and the movement of the movable groove 12 drives the No. 4 gear 9 to rotate. The rotation of the No. 4 gear 9 drives the No. 5 gear 10 to rotate. The rotation of the No. 5 gear 10 drives the rack 11 to move. The rack 11 moves and is stuck in the fixing hole provided in the lower part of the mounting base 3, completing the fixed installation, that is, completing the replacement and installation of the near-infrared low-noise photoelectric detection target surface.

[0023] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0024] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A near-infrared low-noise photoelectric detection target surface, comprising a photoelectric detector body (1), a knob (2), a mounting base (3) and a photoelectric detection target surface (4), characterized in that: The photoelectric detector body (1) is provided with a knob (2) on its side wall, a mounting base (3) is provided on the side of the photoelectric detector body (1), a photoelectric detection target surface (4) is fixedly provided in the inner cavity of the mounting base (3), a mounting hole is provided in the middle of the photoelectric detector body (1), the mounting hole is matched with the mounting base (3), a first gear (5) is provided below the knob (2), a third gear (7) is provided on the side of the first gear (5), a second gear (6) is fixedly provided on the lower wall of the third gear (7), the first gear (5) is meshed with the third gear (7), a circular ring (8) is provided on the side of the second gear (6), and teeth are provided on the side wall of the circular ring (8). The second gear (6) is meshed with the circular ring (8), and the circular ring (8) is evenly provided with three movable grooves (12). The inner wall of the movable groove (12) is provided with teeth. The fourth gear (9) is installed inside the movable groove (12), and the fourth gear (9) cooperates with the movable groove (12). The fifth gear (10) is fixedly installed on the lower wall of the fourth gear (9), and a rack (11) is installed on the side of the fifth gear (10). The fifth gear (10) is meshed with the rack (11). A mounting ring (18) is fixedly installed on the inner side of the circular ring (8), and the mounting ring (18) is provided with three limiting holes (13). The limiting holes (13) cooperate with the rack (11).

2. The near-infrared low-noise photoelectric detection target according to claim 1, characterized in that: The lower wall of the mounting base (3) is provided with three L-shaped protrusions, the outer wall of the mounting ring (18) is evenly provided with three fixing rings (14), the fixing rings (14) cooperate with the mounting base (3), and the lower wall of the mounting base (3) is evenly provided with three fixing holes, the fixing holes cooperate with the rack (11).

3. The near-infrared low-noise photoelectric detection target surface according to claim 1, characterized in that: The knob (2) is fixedly connected to the No. 1 gear (5) via a No. 1 bearing (15), and the No. 1 bearing (15) is rotatably mounted on the photoelectric detector body (1). The No. 2 gear (6) is rotatably mounted with a No. 2 bearing (16), and the No. 3 bearing (17) is rotatably mounted on the lower wall of the No. 5 gear (10).

4. The near-infrared low-noise photoelectric detection target according to claim 1, characterized in that: The outer wall of the knob (2) is provided with uniform protrusions.

5. The near-infrared low-noise photoelectric detection target according to claim 1, characterized in that: The outer wall of the mounting base (3) is evenly provided with protrusions.

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