Adjustable optical fiber attenuator

Abstract

The utility model relates to the technical field of optical fibers, and discloses an adjustable optical fiber attenuator, which comprises an optical fiber attenuator main body, an output port and an input port, the input port is fixedly arranged on the right side of the optical fiber attenuator main body, and an adjusting mechanism is arranged between the output port and the left side of the optical fiber attenuator main body; the adjusting mechanism comprises a slot and a screw rod, the slot is formed in the left side of the optical fiber attenuator main body, the output port is inserted into the slot, and a sliding block is fixedly mounted at the top end of the outer wall of the output port. The output port can extend out of the length range of the slot by any length, so that a worker can adjust the output port more conveniently according to the cable length of the output port, and the problems that the adjustable length of the output port is limited and the use of the worker is inconvenient due to the fact that the output port can only extend out of the fixed position of each limiting slot by the length in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to an adjustable optical fiber attenuator. Background Technique

[0002] An optical fiber attenuator is an optical device that can reduce the energy of an optical signal. It is used to attenuate the input optical power to avoid distortion of the optical receiver caused by excessive input optical power. At present, when the used optical fiber attenuator is installed, it cannot be adjusted according to the length of the cable at the input port, resulting in the need to increase or decrease the cable, greatly increasing the labor intensity and easily affecting data transmission.

[0003] The existing Chinese patent publication number is: CN211856983U, which discloses an adjustable optical fiber attenuator. Through the limiting rod on the limiting groove and the output port on the moving groove, during installation, first pull the limiting rod upward to separate the lower part of the limiting rod from the limiting groove, and at the same time compress the spring, then pull the output port to move left and right, so as to adjust to an appropriate length. Then release the limiting rod, and according to the resilience of the spring, the spring pushes the first slider downward to make the limiting rod insert into the limiting groove, thereby fixing the output port. The operation is simple, which is convenient for the staff to adjust according to the length of the cable at the output port, avoiding the problem of needing to increase or decrease the cable, and is beneficial to the more practical use of an adjustable optical fiber attenuator. In the technical solution, the output port can only extend the length of the fixed position of each limiting groove, resulting in limited adjustable length of the output port and inconvenience for personnel to use. For this reason, we propose an adjustable optical fiber attenuator. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable optical fiber attenuator, which solves the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An adjustable optical fiber attenuator, including an optical fiber attenuator main body, an output port and an input port. The input port is fixedly installed on the right side of the optical fiber attenuator main body, and an adjusting mechanism is arranged between the output port and the left side of the optical fiber attenuator main body.

[0006] The adjusting mechanism includes a slot and a screw rod. The slot is opened on the left side of the optical fiber attenuator main body. The output port is inserted into the slot. A slider is fixedly installed at the top of the outer wall of the output port. A first chute is opened at the top of the inner wall of the slot. The slider is slidably connected with the first chute. One end of the screw rod is rotatably connected to the inner wall of the first chute through a first bearing. The slider is threadedly sleeved on the outer wall of the screw rod. A fixing plate is fixedly installed at the top of the inner wall of the first chute. The fixing plate is rotatably sleeved on the outer wall of the screw rod through a second bearing. A limiting sliding plate is fixedly installed on the outer wall of the output port. A second chute is opened on the inner wall of the slot. The limiting sliding plate is slidably connected with the second chute.

[0007] Preferably, a rotating plate is fixedly installed at the other end of the screw rod. By providing the rotating plate, it is convenient for personnel to rotate the screw rod through the rotating plate, thus facilitating the operation of personnel.

[0008] Preferably, the number of the limiting sliding plates and the second sliding grooves is two, and the limiting sliding plates are adapted to the second sliding grooves. By providing the limiting sliding plates, a certain limiting effect can be exerted on the output port, improving the stability of the output port.

[0009] Preferably, the slider is adapted to the first sliding groove, and an identification plate is fixedly installed on the front surface of the optical fiber attenuator body.

[0010] Preferably, protective plates are fixedly installed at the top and bottom of the optical fiber attenuator body, and buffer pads are fixedly installed on the outer walls of the protective plates.

[0011] Preferably, the shape of the protective plate is arched, the material of the protective plate is elastic PVC material, and the material of the buffer pad is wear-resistant rubber.

[0012] The utility model provides an adjustable optical fiber attenuator. The adjustable optical fiber attenuator has the following beneficial effects:

[0013] (1) For the adjustable optical fiber attenuator, by providing an adjusting mechanism, it is convenient for personnel to adjust the length of the output port extending out, so that the output port can extend to any length within the length range that can extend out of the slot, thus making it more convenient for the staff to adjust according to the cable length of the output port, solving the problem that in the prior art solution, the output port can only extend to the fixed position length of each limiting slot, resulting in a limited adjustable length of the output port and being inconvenient for personnel to use;

[0014] (2) For the adjustable optical fiber attenuator, by providing the protective plate and the buffer pad, a certain protective and buffering effect can be exerted on the optical fiber attenuator body when it is impacted, improving the service life of the optical fiber attenuator body, with a simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of a partial cross-sectional structure of the front view of the utility model;

[0017] Figure 3 is of the utility model Figure 2 is an enlarged schematic diagram of part A in the utility model;

[0018] Figure 4 is of the utility model Figure 2 is an enlarged schematic diagram of part B in the utility model;

[0019] Figure 5 For the present utility model Figure 1 is a schematic enlarged view of part C in it.

[0020] In the figure: 1. Fiber optic attenuator main body; 2. Output port; 3. Adjusting mechanism; 4. Identification plate; 5. Input port; 6. Protection plate; 7. Buffer pad; 301. Slot; 302. Slide block; 303. Screw; 304. First chute; 305. Rotating plate; 306. Fixed plate; 307. Limit slide plate; 308. Second chute. Specific embodiments

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Embodiment 1:

[0025] The preferred embodiment of the adjustable fiber optic attenuator provided by the present utility model is as Figures 1 to 5 shown: An adjustable fiber optic attenuator includes a fiber optic attenuator main body 1, an output port 2 and an input port 5. The input port 5 is fixedly installed on the right side of the fiber optic attenuator main body 1, and an adjusting mechanism 3 is provided between the output port 2 and the left side of the fiber optic attenuator main body 1;

[0026] The adjusting mechanism 3 includes a slot 301 and a screw 303. The slot 301 is opened on the left side of the optical fiber attenuator main body 1, and the output port 2 is inserted into the slot 301. A slider 302 is fixedly installed at the top end of the outer wall of the output port 2. A first chute 304 is opened at the top end of the inner wall of the slot 301. The slider 302 is slidably connected to the first chute 304. One end of the screw 303 is rotatably connected to the inner wall of the first chute 304 through a first bearing. The slider 302 is threadedly sleeved on the outer wall of the screw 303. A fixing plate 306 is fixedly installed at the top end of the inner wall of the first chute 304. The fixing plate 306 is rotatably sleeved on the outer wall of the screw 303 through a second bearing. A limiting sliding plate 307 is fixedly installed on the outer wall of the output port 2. A second chute 308 is opened on the inner wall of the slot 301. The limiting sliding plate 307 is slidably connected to the second chute 308.

[0027] Specifically in the above technical solution, when the rotating plate 305 is rotated, the rotating plate 305 drives the screw 303 to rotate. The screw 303 drives the slider 302 to move out of the first chute 304. The slider 302 drives the output port 2 to extend out of the slot 301, thereby increasing the extended length of the output port 2. When the rotating plate 305 is rotated in the reverse direction, the slider 302 can drive the output port 2 to contract into the slot 301, thereby shortening the extended length of the output port 2. Through this mechanism, it is convenient for personnel to adjust the extended length of the output port 2, so that the output port 2 can extend to any length within the length range that can extend out of the slot 301, thereby making it more convenient for the staff to adjust according to the cable length of the output port 2, and solving the problem that in the prior art solution, the output port 2 can only extend to the fixed length of each limiting slot, resulting in a limited adjustable length of the output port 2 and being inconvenient for personnel to use.

[0028] Further, a rotating plate 305 is fixedly installed at the other end of the screw 303;

[0029] Among them, by setting the rotating plate 305, it is convenient for personnel to rotate the screw 303 through the rotating plate 305, thereby facilitating personnel operation.

[0030] Further, the number of the limiting sliding plates 307 and the second chutes 308 is two each, and the limiting sliding plates 307 are adapted to the second chutes 308;

[0031] Among them, by setting the limiting sliding plates 307, a certain limiting effect can be exerted on the output port 2, and the stability of the output port 2 can be improved.

[0032] Further, the slider 302 is adapted to the first chute 304, and a marking plate 4 is fixedly installed on the front surface of the optical fiber attenuator main body 1.

[0033] Embodiment 2:

[0034] On the basis of Embodiment 1, the preferred embodiment of the adjustable optical fiber attenuator provided by the present invention is as follows Figures 1 to 5As shown in the figure: Protective plates 6 are fixedly installed at both the top and bottom of the optical fiber attenuator body 1, and buffer pads 7 are fixedly installed on the outer walls of the protective plates 6.

[0035] Specifically, in the above technical solution, by setting the protective plates 6 and the buffer pads 7, it can play a certain protective and buffering role when the optical fiber attenuator body 1 is impacted, improve the service life of the optical fiber attenuator body 1, with a simple structure and strong practicability.

[0036] Furthermore, the shape of the protective plate 6 is arched, and the material of the protective plate 6 is elastic PVC material, and the material of the buffer pad 7 is wear-resistant rubber.

[0037] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An adjustable optical fiber attenuator, comprising an optical fiber attenuator body (1), an output port (2) and an input port (5), characterized in that: The input port (5) is fixedly mounted on the right side of the optical fiber attenuator body (1), and an adjustment mechanism (3) is provided between the output port (2) and the left side of the optical fiber attenuator body (1); The adjusting mechanism (3) comprises a slot (301) and a screw (303); the slot (301) is provided on the left side of the optical fiber attenuator body (1); the output port (2) is plugged into the slot (301); a slider (302) is fixedly mounted on the top of the outer wall of the output port (2); a slide groove (304) is provided on the top of the inner wall of the slot (301); the slider (302) is slidably connected to the slide groove (304); one end of the screw (303) is rotatably connected to the output port (2) via a bearing (304). On the inner wall of the first slide groove (304), the slider (302) is threadedly sleeved on the outer wall of the screw rod (303), a fixing plate (306) is fixedly installed on the top of the inner wall of the first slide groove (304), and the fixing plate (306) is rotatably sleeved on the outer wall of the screw rod (303) through the second bearing, a limiting slide plate (307) is fixedly installed on the outer wall of the output port (2), and a second slide groove (308) is opened on the inner wall of the slot (301), and the limiting slide plate (307) is slidably connected to the second slide groove (308).

2. The adjustable optical fiber attenuator according to claim 1, characterized in that: A rotating plate (305) is fixedly mounted on the other end of the screw rod (303).

3. The adjustable optical fiber attenuator according to claim 1, characterized in that: The number of the limiting slide plate (307) and the second slide groove (308) is two, and the limiting slide plate (307) is adapted to the second slide groove (308).

4. The adjustable optical fiber attenuator according to claim 1, characterized in that: The sliding block (302) is matched with the sliding groove 1 (304), and an identification plate (4) is fixedly mounted on the front of the optical fiber attenuator body (1).

5. The adjustable optical fiber attenuator according to claim 1, characterized in that: A protective plate (6) is fixedly mounted on the top and bottom ends of the optical fiber attenuator body (1), and a buffer pad (7) is fixedly mounted on the outer wall of the protective plate (6).

6. The adjustable optical fiber attenuator according to claim 5, characterized in that: The shape of the protective plate (6) is an arch, and the material of the protective plate (6) is an elastic PVC material, and the material of the buffer pad (7) is wear-resistant rubber.

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