Novel small optical fiber amplifier without digital display

Abstract

The utility model discloses a novel digital-display-free small optical fiber amplifier, and relates to improvement of photoelectric detection equipment, in particular to improvement of a digital-display-free optical fiber amplifier. The left end of the shell body is provided with a connecting pipe, the connecting pipe is sleeved with the locking cap, the circuit board is arranged in a square shell cavity in the middle of the shell body, the shell upper cover is fixedly connected with the lower assembling fastener through a screw, the bottom of the left side of the shell upper cover is provided with the upper assembling fastener, and the upper assembling fastener is provided with two upper semi-cylindrical grooves. The two upper semi-cylindrical grooves and the two lower semi-cylindrical grooves correspond to each other to form a circular through hole, and the transmitting and receiving tube is inserted into the circular through hole and electrically connected with the circuit board; the circuit board is arranged in the square shell cavity, the right side of the shell body is provided with a wire inlet and outlet pipe, and a wire penetrates through the wire inlet and outlet pipe and is connected with the circuit board. Aiming at the problems of large volume, complicated structure, inconvenience in use and the like of a digital-display-free optical fiber amplifier in the prior art, the utility model provides a novel digital-display-free small optical fiber amplifier which is simplified in structure, smaller in volume and more convenient to install.

Description

Technical Field

[0001] This utility model relates to an improvement of photoelectric detection equipment, specifically to an improvement of an infinitely large optical fiber amplifier. Background Technology

[0002] Photoelectric detection technology is widely used in industrial automation, object positioning, and dimensional inspection due to its advantages such as high detection sensitivity, fast response speed, and high reliability. Fiber optic amplifiers, as a key component, are mainly used to enhance the transmitted optical signal, improve detection distance and resolution, and play a crucial role in photoelectric sensing systems.

[0003] Currently, countless visible fiber optic amplifiers on the market typically employ traditional two-layer circuit boards with complex fiber optic clip structures to secure the fiber. This type of structure not only results in a large product size and complex internal layout but also places high demands on space during installation, often requiring additional mounting brackets to secure it within the device. Furthermore, traditional designs have limitations in signal wiring and the adjustment precision of the transmitting and receiving tubes, making them unsuitable for the needs of modern testing in miniaturized devices or multi-module integration.

[0004] With the trend of intelligent and miniaturized industrial equipment, the market urgently needs a new type of non-display fiber amplifier that is smaller, simpler in structure, and easier to adjust, in order to reduce installation difficulty, improve production efficiency, and expand the scope of applications. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a novel infinitesimal fiber amplifier. This new infinitesimal fiber amplifier addresses the problems of large size, complex structure, and inconvenient use of existing infinitesimal fiber amplifiers by providing a simplified structure, smaller size, and easier installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: it comprises a locking cap 1, a main body 2, a top cover 3, a circuit board 4, wires 6, a transmitting / receiving tube 7, and screws 8. A connecting tube 21 is provided at the left end of the main body 2, and the locking cap 1 is fitted onto the connecting tube 21. The circuit board 4 is disposed in a square cavity 22 in the middle of the main body 2. A lower mounting fastener 221 is provided on the left inner wall of the square cavity 22, and two lower semi-cylindrical grooves 2212 are provided on the lower mounting fastener 221. The top cover 3 is provided on the main body 2 and is fixed by screws 8. The upper cover 3 is embedded in the outer shell body 2; the upper cover 3 and the lower mounting fastener 221 are fixedly connected by screws. The upper mounting fastener 31 is provided on the bottom left side of the upper cover 3. The upper mounting fastener 31 is provided with two upper semi-cylindrical grooves 312. The two upper semi-cylindrical grooves 312 and the two lower semi-cylindrical grooves 2212 correspond to each other to form a circular through hole. The transmitting and receiving tube 7 is inserted into the circular through hole and electrically connected to the circuit board 4; the circuit board 4 is set in the square shell cavity 22. The right side of the outer shell body 2 is provided with an inlet and outlet conduit 23. The wire 6 passes through the inlet and outlet conduit 23 and is connected to the circuit board 4.

[0007] The upper cover 3 of the outer shell is provided with an upper cover screw hole 311 on the left side, and the upper mounting fastener 31 passes through the upper cover screw hole 31; the lower mounting fastener 221 is provided with a lower screw hole 2211, which corresponds to the upper cover screw hole 311.

[0008] The connecting pipe 21 is an integral structure with the outer shell body 2. A cracked tapered pipe 212 is provided at the left end of the connecting pipe 21. To the right of the cracked tapered pipe 212 are an externally threaded pipe 213 and a round pipe 214.

[0009] The locking cap 1 has a cylindrical cavity 11 on the left and a conical cavity 12 in the middle. The conical cavity 12 has a smaller diameter on the left and a larger diameter on the right. The locking cap 1 has an internally threaded cavity 13 on the right. The locking cap 1 is threadedly connected to the connecting tube 21. During tightening, the conical cavity 12 will compress the cracked conical tube 212. Because the cracked conical tube 212 has grooves, the diameter of the left end of the cracked conical tube 212 can be reduced to a large extent. If an optical fiber is inserted into the connecting tube, the optical fiber will be clamped by the compressed conical tube, thus fixing the optical fiber. Therefore, the optical fiber amplifier does not need to have a dedicated optical fiber fastening clip inside, which simplifies and saves internal space, allowing the size of the optical fiber amplifier to be reduced. At the same time, using a 4-layer circuit board with higher wiring density reduces the size of the circuit board, which can further reduce the size of the optical fiber amplifier, making it easier to install in applications with limited space.

[0010] The connecting pipe 21 has a through hole 211 inside, and the axis of the lower semi-cylindrical groove 2212 coincides with the axis of the through hole 211 inside the connecting pipe 21.

[0011] The circuit board 4 has a four-layer wiring structure, which includes a signal layer, a power layer, a ground layer, and a control layer. Compared with the original two-layer board, it can significantly increase the wiring density and reduce the overall size to about 60% of the original size.

[0012] An indicator light hole 222 is provided on the right side of the front wall of the square cavity 22, and an indicator light 5 is provided inside the indicator light hole 222; a distance adjustment hole 223 is provided on the left side of the front wall of the square cavity 22; a distance adjustment element 9 is provided in the distance adjustment hole 223, and the distance adjustment element 9 is a fine-tuning screw structure. Its screw is connected to the transmitter and receiver tube bracket. Rotating the adjustment element 9 can drive the transmitter and receiver tube to move axially, so as to realize the function of adjusting the detection distance with the target object.

[0013] The working principle of this utility model is as follows: When the external optical fiber is inserted into the connecting tube 21, the locking cap 1 tightens so that its internal conical cavity 12 applies a compressive force to the cracked conical tube 212 of the connecting tube 21. Since the cracked conical tube 212 has an axial groove, its inner diameter is reduced after being compressed, thereby firmly clamping the optical fiber, achieving stable installation and maintaining optical path stability.

[0014] The transmitting and receiving tube 7 is fixedly installed in the through hole formed by the upper and lower semi-cylindrical grooves and is electrically connected to the circuit board 4. When powered on, the transmitting tube emits a light signal, which is transmitted to the target area via optical fiber. If the target object is present, the light signal reflected or blocked by it will be received by the receiving tube and fed back to the circuit board for amplification.

[0015] Indicator light 5 is connected to circuit board 4 and is used to display the working status in real time, such as light on / off signal and detection status. Distance adjustment element 9 is linked to the transmitter and receiver tube structure. Users can rotate this element to fine-tune the position of the transmitter and receiver tube, thereby changing the distance between it and the target object, and thus adjusting the detection sensitivity and focal length, improving equipment adaptability.

[0016] This amplifier employs a 4-layer high-density circuit board wiring method, with clear internal functional distinctions and more compact wiring, thereby significantly reducing the overall structural volume and improving space utilization. It is suitable for precision testing applications in confined spaces. The power cables 6 are centrally led out through the inlet and outlet conduits 23, simplifying external wiring requirements and further enhancing installation convenience.

[0017] In this invention, the inlet / outlet conduit 23 is used only for wire input and output, while the two connecting conduits 21 are respectively connected to the transmitting and receiving optical fiber channels to achieve independent transmission of photoelectric signals. This structure avoids the traditional optical fiber clip fixing structure, making it more compact and easier to install, and suitable for detection equipment in confined spaces.

[0018] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by optimizing the shell structure, introducing a tapered self-locking optical fiber fixing component and a multi-layer high-density circuit board design, it achieves a significant reduction in the size of the optical fiber amplifier and makes installation easier; at the same time, by providing a distance adjustment structure, it improves the adjustment accuracy of detection sensitivity and has stronger adaptability; the overall structure is compact, the functional integration is high, and it is suitable for various industrial detection environments with limited space. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the interior of this utility model;

[0023] Figure 4 This is a schematic diagram of the circuit board 4 in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the outer shell cover 3 in this utility model.

[0025] Explanation of reference numerals in the attached drawings: Locking cap 1, outer shell body 2, outer shell top cover 3, circuit board 4, wire 6, transmitter / receiver tube 7, screw 8, distance adjustment element 9, connecting tube 21, locking cap 1 is fitted into connecting tube 21, square shell cavity 22, lower mounting fastener 221, lower semi-cylindrical groove 2212, upper mounting fastener 31, upper semi-cylindrical groove 312, inlet / outlet tube 23, top cover screw hole 311, top cover screw hole 311, lower screw hole 2211, cracked tapered tube 212, external threaded tube 213, round tube 214, cylindrical cavity 11, tapered cavity 12, internal threaded cavity 13, through hole 211, indicator light hole 222, indicator light 5, distance adjustment hole 223. Detailed Implementation

[0026] See Figure 1-5As shown, the technical solution adopted in this specific embodiment is as follows: It includes a locking cap 1, a housing body 2, a housing cover 3, a circuit board 4, a wire 6, a transmitting and receiving tube 7, and screws 8. A connecting tube 21 is provided at the left end of the housing body 2, and the locking cap 1 is sleeved on the connecting tube 21. The circuit board 4 is located in a square cavity 22 in the middle of the housing body 2. A lower mounting fastener 221 is provided on the left inner wall of the square cavity 22. The lower mounting fastener 221 has two lower semi-cylindrical grooves 2212. A housing cover 3 is provided on the housing body 2 and is fixed by screws 8. The housing cover 3 is embedded in the housing body 2. The housing cover 3 and the lower mounting fastener 221 are fixedly connected by screws. An upper mounting fastener 31 is provided at the bottom left side of the housing cover 3. The upper mounting fastener 31 has two upper semi-cylindrical grooves 312, which correspond to the two lower semi-cylindrical grooves 2212. A circular through-hole is formed, and the transmitting and receiving tube 7 is inserted into the circular through-hole and electrically connected to the circuit board 4; the circuit board 4 is set in the square cavity 22, and the right side of the outer shell body 2 is provided with an inlet / outlet conduit 23, through which the wire 6 passes and is connected to the circuit board 4; the left side of the outer shell cover 3 is provided with an upper cover screw hole 311, through which the upper mounting fastener 31 passes; the lower mounting fastener 221 is provided with a lower screw hole 2211. The lower screw hole 2211 corresponds to the upper cover screw hole 311. The connecting tube 21 is an integral structure with the outer shell body 2. The left end of the connecting tube 21 is provided with a cracked tapered tube 212. To the right of the cracked tapered tube 212 are an external threaded tube 213 and a round tube 214. The left part of the inner cavity of the locking cap 1 is a cylindrical cavity 11, and the middle part of the inner cavity is a tapered cavity 12. The left side of the tapered cavity 12 has a smaller diameter and the right side has a larger diameter. The right side of the inner cavity of the locking cap 1 is an internal threaded cavity 13. The locking cap 1 and the connecting tube 21 are connected by a threaded sleeve. During the tightening process, the tapered cavity 12 will compress the cracked tapered tube 212. Since there is a groove on the cracked tapered tube 212, the diameter of the left end of the cracked tapered tube 212 can be reduced to a large extent. If an optical fiber is inserted into the connecting tube, the optical fiber will be stuck by the compressed tapered tube, thereby fixing the optical fiber. Therefore, the fiber optic amplifier no longer requires dedicated internal fiber optic fasteners, simplifying and saving internal space, allowing for a smaller amplifier size. Furthermore, using a four-layer circuit board with higher wiring density further reduces the board size, making the amplifier easier to install in space-constrained applications. Circuit board 4 features a four-layer wiring structure, including signal, power, ground, and control layers. Compared to the original two-layer board, this significantly increases wiring density and reduces the overall size to approximately 60%.

[0027] In this specific embodiment, the inlet / outlet conduit 23 is used only for wire input and output, while the two connecting conduits 21 are respectively connected to the transmitting and receiving optical fiber channels to achieve independent transmission of photoelectric signals. This structure avoids the traditional optical fiber clip fixing structure, making it more compact and easier to install, and suitable for detection equipment in confined spaces.

[0028] This specific embodiment achieves a significant reduction in the size of the fiber optic amplifier and simplifies installation by optimizing the shell structure, introducing a tapered self-locking fiber optic fixing component, and a multi-layer high-density circuit board design. At the same time, the addition of a distance adjustment structure improves the adjustment accuracy of the detection sensitivity and enhances adaptability. The overall structure is compact, with high functional integration, making it suitable for various industrial detection environments with limited space.

[0029] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A novel all-fiber small optical fiber amplifier characterized in that: It includes a locking cap (1), a housing body (2), a housing cover (3), a circuit board (4), wires (6), a transmitter / receiver tube (7), and screws (8). A connecting tube (21) is provided at the left end of the housing body (2), and the locking cap (1) is fitted onto the connecting tube (21). The circuit board (4) is located in a square cavity (22) in the middle of the housing body (2). A lower mounting fastener (221) is provided on the inner wall of the left side of the square cavity (22). Two lower semi-cylindrical grooves (2212) are provided on the lower mounting fastener (221). A housing cover (3) is provided on the housing body (2), and the housing cover (3) is fixed by screws (8). The housing cover (3) is embedded in... Inside the outer shell body (2); the outer shell cover (3) and the lower mounting fastener (221) are fixedly connected by screws. The upper mounting fastener (31) is provided on the bottom left side of the outer shell cover (3). The upper mounting fastener (31) is provided with two upper semi-cylindrical grooves (312). The two upper semi-cylindrical grooves (312) and the two lower semi-cylindrical grooves (2212) correspond to each other to form a circular through hole. The transmitting and receiving tube (7) is inserted into the circular through hole and electrically connected to the circuit board (4). The circuit board (4) is set in the square shell cavity (22). The outer shell body (2) is provided with an inlet and outlet pipe (23) on the right side. The wire (6) passes through the inlet and outlet pipe (23) and is connected to the circuit board (4).

2. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: The upper cover (3) of the outer shell is provided with an upper cover screw hole (311) on the left side, and the upper cover screw hole (311) passes through the upper mounting fastener (31); the lower mounting fastener (221) is provided with a lower screw hole (2211), and the lower screw hole (2211) corresponds to the upper cover screw hole (311).

3. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: The connecting pipe (21) is an integral structure with the outer shell body (2). A cracked tapered pipe (212) is provided at the left end of the connecting pipe (21). To the right of the cracked tapered pipe (212) are an external threaded pipe (213) and a round pipe (214).

4. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: The left side of the inner cavity of the locking cap (1) is a cylindrical cavity (11), and the middle part of the inner cavity is a conical cavity (12). The left side of the conical cavity (12) has a smaller diameter and the right side has a larger diameter. The right side of the inner cavity of the locking cap (1) is an internal thread cavity (13).

5. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: The connecting pipe (21) has a through hole (211) inside, and the axis of the lower semi-cylindrical groove (2212) coincides with the axis of the through hole (211) inside the connecting pipe (21).

6. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: The circuit board (4) is a four-layer board with a wiring structure. The four-layer board includes a signal layer, a power layer, a ground layer and a control layer. Compared with the original two-layer board, it can significantly increase the wiring density and reduce the overall size to about 60% of the original size.

7. The novel infinitesimal fiber amplifier according to claim 1, characterized in that: An indicator light hole (222) is provided on the right side of the front wall of the square cavity (22), and an indicator light (5) is provided inside the indicator light hole (222); a distance adjustment hole (223) is provided on the left side of the front wall of the square cavity (22); a distance adjustment element (9) is provided in the distance adjustment hole (223), and the distance adjustment element (9) is a fine-tuning screw structure.

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