Protective shell of optical fiber delay line

Abstract

The utility model relates to the technical field of photoelectricity, and discloses an optical fiber delay line protective shell, which comprises a transmission assembly, a transmission part, a delay line, a rotating wheel, a first belt pulley, a belt, a second belt pulley and a reciprocating roller, the rotating wheel is arranged on the inner wall of the delay line, the delay line is sleeved outside the rotating wheel, the first belt pulley is arranged on one side of the rotating wheel, and the belt pulley is arranged on the other side of the rotating wheel. The first belt pulley is sleeved with the belt, the second belt pulley is arranged on the inner wall of the belt, and the reciprocating roller is arranged on one side of the second belt pulley. And the limiting assembly is arranged on one side of the rotating wheel and comprises a limiting piece, a fluted disc, an extrusion block, an extrusion rod, a first spring and a positioning shell, one side of the extrusion block is an inclined plane and is arranged on one side of the fluted disc, and the extrusion rod is arranged at one end of the extrusion block. The beneficial effects of the utility model are that the optical fiber extension wire is wound on one side of the extender, so that disordered cables on the ground can be eliminated, the risk that personnel are stumbled is reduced, and the safety of a working place is improved.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic technology, and in particular to a protective shell for an optical fiber delay line. Background Technology

[0002] Fiber optic delay lines can filter and shape input signals. By selecting appropriate delay times and fiber characteristics, signals of specific frequency components can be enhanced or suppressed, thereby improving signal quality. A fiber optic extender is typically located on one side of the delay line. During signal transmission, various interferences and losses may occur, leading to signal strength weakening. The extender amplifies and enhances the input signal, increasing its power and amplitude, thus improving signal quality. For applications requiring only a specific delay, a single fiber optic delay line can provide more precise delay control. By selecting an appropriate fiber length, the desired delay time can be accurately achieved, avoiding the potential error accumulation caused by multiple delay lines. In use, fiber optic extension lines are usually scattered on one side of the extender. These scattered extension lines on the ground or in the work area can become tripping hazards, threatening personnel safety. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing fiber optic delay line protective housings, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that scattered extension cords pose a threat to personnel safety.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a protective shell for an optical fiber delay line, comprising a transmission assembly, including a transmission component, a delay line, a rotating wheel, a first pulley, a belt, a second pulley, and a reciprocating roller. The rotating wheel is disposed on the inner wall of the delay line, the delay line is sleeved on the outer side of the rotating wheel, the first pulley is disposed on one side of the rotating wheel, the belt is sleeved on the outer side of the first pulley, the second pulley is disposed on the inner wall of the belt, and the reciprocating roller is disposed on one side of the second pulley.

[0007] A limiting component is disposed on one side of the rotating wheel and includes a limiting member, comprising a toothed disc, an extrusion block, an extrusion rod, a first spring, and a positioning shell. One side of the extrusion block is inclined and disposed on one side of the toothed disc. The extrusion rod is disposed at one end of the extrusion block. The first spring is sleeved on the outside of the extrusion rod, and the positioning shell is sleeved on the outside of the extrusion rod. One end of the first spring is fixed to the inner wall of the positioning shell.

[0008] As a preferred embodiment of the protective housing for the optical fiber delay line described in this utility model, a support frame is provided on one side of the rotating wheel, a rotating shaft is inserted into the inner wall of the support frame, one end of the rotating shaft is fixed to one end of the rotating wheel, and the other end is fixed to the inner wall of the first pulley.

[0009] In a preferred embodiment of the protective housing for the optical fiber delay line described in this utility model, a support block is provided at one end of the rotating shaft.

[0010] As a preferred embodiment of the protective housing for the optical fiber delay line of this utility model, a movable shaft is provided at one end of the second pulley, the movable shaft is inserted into the inner wall of the reciprocating roller, and a placement bracket is provided at each end of the movable shaft.

[0011] As a preferred embodiment of the protective shell for the optical fiber delay line described in this utility model, the reciprocating roller is provided with a drive ring, the inner wall of the drive ring is provided with a protrusion corresponding to the concave surface of the reciprocating roller, and the drive ring moves outside the reciprocating roller.

[0012] As a preferred embodiment of the protective housing for the fiber optic delay line of this utility model, the drive ring has two clamping strips at the top, a connecting rod at the bottom of the drive ring, a sliding block at the bottom of the connecting rod, a sliding rail on one side of the placement frame, and the sliding block sliding on the inner wall of the sliding rail.

[0013] As a preferred embodiment of the protective housing for the optical fiber delay line described in this utility model, the extrusion rod has a drive groove, the inner wall of the drive groove is provided with a movable ball, and the bottom of the movable ball is provided with a movable rod.

[0014] As a preferred embodiment of the protective housing for the fiber optic delay line described in this utility model, a fixed shaft is inserted into one side of the movable rod, a handle is provided on the outer sleeve of the fixed shaft, a fixed frame is provided at one end of the handle, and a fixed shaft is provided on the inner wall of the fixed frame.

[0015] As a preferred embodiment of the protective shell for the optical fiber delay line of this utility model, the positioning shell is fitted with a protective shell on one side, a fixing groove is opened on one side of the protective shell, the delay line is located on the inner wall of the fixing groove, and a movable groove is opened on the other side of the protective shell.

[0016] As a preferred embodiment of the protective housing for the fiber optic delay line described in this utility model, it further includes a main component, including a fiber optic extender, a fiber optic interface, and an indicator light. The fiber optic interface is disposed on one side of the fiber optic extender, and a delay line is disposed on one side of the fiber optic interface. The fiber optic extender is disposed on one side of the protective housing, and the indicator light is disposed on one side of the fiber optic extender.

[0017] The beneficial effects of this utility model are: by winding the fiber optic extension cable to one side of the extender, messy cables on the ground can be eliminated, reducing the risk of people tripping and improving workplace safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0019] Figure 1 This is an overall structural diagram of the protective casing for fiber optic delay lines.

[0020] Figure 2 This is a structural diagram of the first pulley for the protective housing of an optical fiber delay line.

[0021] Figure 3 This is a structural diagram of the rotating wheel for the protective housing of an optical fiber delay line.

[0022] Figure 4 This is a diagram of the sliding rail structure for the protective housing of an optical fiber delay line.

[0023] Figure 5 This is a structural diagram of the handle of a protective housing for an optical fiber delay line.

[0024] Figure 6 This is a structural diagram of a fiber optic extender with a protective housing for fiber optic delay lines. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1

[0029] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a protective shell for fiber optic delay lines. The protective shell for fiber optic delay lines includes a main body component 100, a transmission component 200, and a limiting component 300. The three components work together to orderly retract the extension line.

[0030] Specifically, the transmission assembly 200 includes a transmission component 201, which includes a delay line 201a, a rotating wheel 201b, a first pulley 201c, a belt 201d, a second pulley 201e, and a reciprocating roller 201f. The rotating wheel 201b is disposed on the inner wall of the delay line 201a, and the delay line 201a is sleeved on the outer side of the rotating wheel 201b. The first pulley 201c is disposed on one side of the rotating wheel 201b, the belt 201d is sleeved on the outer side of the first pulley 201c, the second pulley 201e is disposed on the inner wall of the belt 201d, and the reciprocating roller 201f is disposed on one side of the second pulley 201e.

[0031] When the delay line 201a needs to be stretched, by stretching the delay line 201a, the rotation of the delay line 201a drives the rotating wheel 201b to rotate, the rotation of the rotating wheel 201b drives the first pulley 201c to rotate, the first pulley 201c drives the belt 201d to rotate, the rotation of the belt 201d drives the second pulley 201e to rotate, and the second pulley 201e drives the reciprocating roller 201f. The rotation of the reciprocating roller 201f can make the delay line 201a more regular and orderly when it is stretched.

[0032] Specifically, the limiting component 300 is located on one side of the rotating wheel 201b and includes a limiting member 301, which includes a gear plate 301a, a pressing block 301b, a pressing rod 301c, a first spring 301d, and a positioning shell 301e. One side of the pressing block 301b is inclined and is located on one side of the gear plate 301a. The pressing rod 301c is located at one end of the pressing block 301b. The first spring 301d is sleeved on the outside of the pressing rod 301c. The positioning shell 301e is sleeved on the outside of the pressing rod 301c. One end of the first spring 301d is fixed to the inner wall of the positioning shell 301e.

[0033] A torsion spring is also provided on one side of the gear disk 301a. The torsion spring is sleeved on the outside of the rotating wheel 201b, with one end fixed to one side of the gear disk 301a and the other end fixed to the inner wall of the fiber optic extender 101. The positioning shell 301e is used to protect the extrusion rod 301c. When the delay line 201a is pulled, the gear disk 301a will rotate. After removal, it needs to be limited to prevent the delay line 201a from retracting. By extruding the extrusion rod 301c, when the extrusion rod 301c moves, it will pass through the first spring 301. The rebound of d causes the extrusion block 301b to move and engage with the toothed disc 301a. When it is necessary to release the limit, the extrusion rod 301c is pulled, and the extrusion rod 301c compresses the first spring 301d. The extrusion rod 301c also drives the extrusion block 301b to move and separate from the toothed disc 301a, thereby releasing the limit on the delay line 201a. The operator can adjust and set the delay line 201a more efficiently, saving time and effort and improving work efficiency.

[0034] When the delay line 201a is unwound, it drives the rotating wheel 201b to rotate. The rotating wheel 201b drives the toothed disc 301a to rotate. The rotation of the toothed disc 301a can apply a torsional force to the torsion spring. When it is necessary to rewind the delay line 201a, the limiting position of the toothed disc 301a is released. The force of the torsion spring rotation will drive the rotating wheel 201b to reverse. The reversal of the rotating wheel 201b can thus retract the delay line 201a.

[0035] Example 2

[0036] Reference Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, a support frame 202a is provided on one side of the rotating wheel 201b, and a rotating shaft 202b is inserted into the inner wall of the support frame 202a. One end of the rotating shaft 202b is fixed to one end of the rotating wheel 201b, and the other end is fixed to the inner wall of the first pulley 201c.

[0038] The support frame 202a is used to support the rotating shaft 202b. By pulling the delay line 201a, the delay line 201a rotates, which drives the rotating wheel 201b to rotate. The rotating wheel 201b rotates, which drives the rotating shaft 202b to rotate on the inner wall of the support frame 202a. The rotation of the rotating shaft 202b drives the first pulley 201c to rotate.

[0039] Specifically, a support block 202c is provided at one end of the rotating shaft 202b.

[0040] The support block 202c is used to support the rotating shaft 202b.

[0041] Specifically, a movable shaft 202d is provided at one end of the second pulley 201e. The movable shaft 202d is inserted into the inner wall of the reciprocating roller 201f, and a placement frame 202e is provided at each end of the movable shaft 202d.

[0042] The placement frame 202e supports the movable shaft 202d. The first pulley 201c rotates, which drives the belt 201d to rotate. The belt 201d rotates, which drives the second pulley 201e to rotate. The second pulley 201e rotates, which drives the movable shaft 202d to rotate. The movable shaft 202d drives the reciprocating roller 201f to rotate.

[0043] Specifically, the reciprocating roller 201f is provided with a drive ring 202f on its outer sleeve. The inner wall of the drive ring 202f is provided with a protrusion 202g corresponding to the concave surface of the reciprocating roller 201f. The drive ring 202f moves outside the reciprocating roller 201f.

[0044] The rotation of the reciprocating roller 201f can drive the protrusion 202g to slide and move on the concave surface of the reciprocating roller 201f. The movement of the protrusion 202g drives the drive ring 202f to move on the outside of the reciprocating roller 201f.

[0045] Specifically, the top of the drive ring 202f is provided with two clamping strips 202h, the bottom of the drive ring 202f is provided with a connecting rod 202i, the bottom of the connecting rod 202i is provided with a sliding block 202j, and a sliding rail 202k is provided on one side of the placement rack 202e. The sliding block 202j slides on the inner wall of the sliding rail 202k.

[0046] The clamping bar 202h is used to support and place the delay line 201a. It moves by the drive ring 202f, which drives the connecting rod 202i to move. The connecting rod 202i drives the sliding block 202j to slide on the inner wall of the sliding rail 202k, making the sliding of the sliding block 202j on the inner wall of the sliding rail 202k more stable.

[0047] Example 3

[0048] Reference Figures 5-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0049] Specifically, a drive groove 301c-1 is provided inside the extrusion rod 301c, a moving ball 302a is provided on the inner wall of the drive groove 301c-1, and a moving rod 302b is provided at the bottom of the moving ball 302a.

[0050] By moving the moving rod 302b, the moving rod 302b drives the moving ball 302a to move on the inner wall of the drive groove 301c-1, which in turn squeezes the extrusion rod 301c, causing the extrusion rod 301c to move.

[0051] Specifically, a fixed shaft 302c is inserted into one side of the moving rod 302b, a handle 302d is provided on the outer sleeve of the fixed shaft 302c, a fixed frame 302e is provided at one end of the handle 302d, and the fixed shaft 302c is provided on the inner wall of the fixed frame 302e.

[0052] The fixing bracket 302e is used to support the fixing shaft 302c. When it is necessary to remove the limit on the delay line 201a, the handle 302d is moved. The movement of the handle 302d drives the fixing shaft 302c to rotate. The fixing shaft 302c drives the moving rod 302b to rotate. The movement of the moving rod 302b drives the moving ball 302a to move on the inner wall of the drive groove 301c-1. At this time, the moving ball 302a will squeeze the extrusion rod 301c, thereby allowing the extrusion rod 301c to move.

[0053] Specifically, a protective shell 302f is fitted on one side of the positioning shell 301e, a fixing groove 302f-1 is opened on one side of the protective shell 302f, the delay line 201a is located on the inner wall of the fixing groove 302f-1, and a movable groove 302f-2 is opened on the other side of the protective shell 302f.

[0054] The protective shell 302f is used to protect the rotating wheel 201b. The delay line 201a moves on the inner wall of the fixed groove 302f-1. The movable groove 302f-2 provides a space for the extrusion block 301b to move.

[0055] Specifically, it also includes the main component 100, including fiber optic extender 101, fiber optic interface 102 and indicator light 103. Fiber optic interface 102 is located on one side of fiber optic extender 101, and a delay line 201a is located on one side of fiber optic interface 102. Fiber optic extender 101 is located on one side of protective housing 302f, and indicator light 103 is located on one side of fiber optic extender 101.

[0056] The fiber optic extender 101 is a device used to extend the signal transmission distance. It is mainly used in the transmission of audio and video signals, data signals, etc. The fiber optic interface 102 is used to transmit data, and the indicator light 103 can display the power status of the fiber optic extender.

[0057] In use, first release the limit on the gear disc 301a. Then, by moving the handle 302d, the handle 302d moves, causing the fixed shaft 302c to rotate. The fixed shaft 302c then rotates the moving rod 302b, which in turn moves the moving ball 302a along the inner wall of the drive groove 301c-1. The moving ball 302a then presses against the pressing rod 301c, causing the pressing rod 301c to move. This movement of the pressing rod 301c pulls on the first spring 301d. The movement of the pressing rod 301c also... The extrusion block 301b is separated from the gear disc 301a, thus releasing the restriction on the gear disc 301a. When the delay line 201a is pulled, it causes the rotating wheel 201b to rotate. The rotation of the rotating wheel 201b causes the gear disc 301a to rotate, and the rotation of the gear disc 301a applies a torsional force to the torsion spring. Simultaneously, the delay line 201a drives the rotating wheel 201b to rotate, which in turn drives the rotating shaft 202b to rotate. The rotation of the rotating shaft 202b drives the first pulley 201c to rotate. The rotation of belt 201d causes belt 201d to rotate, which in turn causes second pulley 201e to rotate. Second pulley 201e then drives movable shaft 202d to rotate, which in turn drives reciprocating roller 201f to rotate. The rotation of reciprocating roller 201f causes protrusion 202g to slide and move on the concave surface of reciprocating roller 201f. The movement of protrusion 202g causes drive ring 202f to move, which in turn causes connecting rod 202i to move. Connecting rod 202i then causes sliding block 202j to move on the sliding rail. The inner wall of 202k slides, allowing the delay line 201a to be unwound and used. Then, the handle 302d is released, and the return of the first spring 301d causes the pressing block 301b to engage with the toothed disc 301a, thus limiting the toothed disc 301a and preventing the delay line 201a from reversing. When it is necessary to rewind the delay line 201a, the limiting of the toothed disc 301a is released again. The force of the torsion spring rotation will drive the rotating wheel 201b to reverse, and the reversal of the rotating wheel 201b will allow the delay line 201a to be retracted.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective housing for an optical fiber delay line, characterized in that: include, A transmission assembly (200) includes a transmission component (201), comprising a delay line (201a), a rotating wheel (201b), a first pulley (201c), a belt (201d), a second pulley (201e), and a reciprocating roller (201f). The rotating wheel (201b) is disposed on the inner wall of the delay line (201a), and the delay line (201a) is sleeved on the outer side of the rotating wheel (201b). The first pulley (201c) is disposed on one side of the rotating wheel (201b), the belt (201d) is sleeved on the outer side of the first pulley (201c), the second pulley (201e) is disposed on the inner wall of the belt (201d), and the reciprocating roller (201f) is disposed on one side of the second pulley (201e). A limiting component (300) is disposed on one side of the rotating wheel (201b) and includes a limiting member (301), a gear disc (301a), a pressing block (301b), a pressing rod (301c), a first spring (301d), and a positioning shell (301e). One side of the pressing block (301b) is inclined and disposed on one side of the gear disc (301a). The pressing rod (301c) is disposed at one end of the pressing block (301b). The first spring (301d) is sleeved on the outside of the pressing rod (301c). The positioning shell (301e) is sleeved on the outside of the pressing rod (301c). One end of the first spring (301d) is fixed to the inner wall of the positioning shell (301e).

2. The protective housing for fiber optic delay lines as described in claim 1, characterized in that: A support frame (202a) is provided on one side of the rotating wheel (201b). A rotating shaft (202b) is inserted into the inner wall of the support frame (202a). One end of the rotating shaft (202b) is fixed to one end of the rotating wheel (201b), and the other end is fixed to the inner wall of the first pulley (201c).

3. The protective housing for the fiber optic delay line as described in claim 2, characterized in that: A support block (202c) is provided at one end of the rotating shaft (202b).

4. The protective housing for fiber optic delay lines as described in claim 3, characterized in that: The second pulley (201e) is provided with a movable shaft (202d) at one end, the movable shaft (202d) is inserted into the inner wall of the reciprocating roller (201f), and a placement bracket (202e) is provided at each end of the movable shaft (202d).

5. The protective housing for fiber optic delay lines as described in claim 4, characterized in that: The reciprocating roller (201f) is fitted with a drive ring (202f), and the inner wall of the drive ring (202f) is provided with a protrusion (202g) corresponding to the concave surface of the reciprocating roller (201f). The drive ring (202f) moves outside the reciprocating roller (201f).

6. The protective housing for fiber optic delay lines as described in claim 5, characterized in that: The top of the drive ring (202f) is provided with two clamping strips (202h), the bottom of the drive ring (202f) is provided with a connecting rod (202i), the bottom of the connecting rod (202i) is provided with a sliding block (202j), the side of the placement frame (202e) is provided with a sliding rail (202k), and the sliding block (202j) slides on the inner wall of the sliding rail (202k).

7. The protective housing for fiber optic delay lines as described in claim 6, characterized in that: The extrusion rod (301c) has a drive groove (301c-1) inside, and a movable ball (302a) is provided on the inner wall of the drive groove (301c-1). A movable rod (302b) is provided at the bottom of the movable ball (302a).

8. The protective housing for fiber optic delay lines as described in claim 7, characterized in that: A fixed shaft (302c) is inserted into one side of the movable rod (302b), and a handle (302d) is sleeved on the fixed shaft (302c). A fixed frame (302e) is provided at one end of the handle (302d), and the fixed shaft (302c) is provided on the inner wall of the fixed frame (302e).

9. The protective housing for fiber optic delay lines as described in claim 8, characterized in that: A protective shell (302f) is fitted on one side of the positioning shell (301e). A fixing groove (302f-1) is opened on one side of the protective shell (302f). The delay line (201a) is located on the inner wall of the fixing groove (302f-1). A movable groove (302f-2) is opened on the other side of the protective shell (302f).

10. The protective housing for fiber optic delay lines as described in claim 9, characterized in that: It also includes a main component (100), including an optical fiber extender (101), an optical fiber interface (102), and an indicator light (103). The optical fiber interface (102) is located on one side of the optical fiber extender (101), and a delay line (201a) is provided on one side of the optical fiber interface (102). The optical fiber extender (101) is located on one side of the protective shell (302f), and the indicator light (103) is located on one side of the optical fiber extender (101).

Images