Optical cable plugging device

Abstract

The embodiment of the utility model provides an optical cable plugging device. The optical cable plugging device comprises an optical cable inner sleeve, an elastic piece, an optical cable middle sleeve and an optical cable outer sleeve which are sequentially arranged in a surrounding mode. According to the optical cable plugging device provided by the utility model, the optical cable is accurate in positioning and convenient to lock, the acting force required by locking is small, and the optical cable is simple and reliable to install.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, and specifically to an optical cable splicing device. Background Technology

[0002] High-power lasers typically use QD optical cables for output. To ensure high-precision laser processing, the laser optical cable and external optical path products need to be connected with high precision. For easy assembly and disassembly, the connection interface needs to adopt a quick-release structure, and the quick-release structure needs to be convenient and fast.

[0003] The QD optical cable locking head on the market is troublesome to install, and installation and removal require applying an axial force to compress the spring. Usually, in order to ensure the reliability of optical cable locking, the spring needs to have a certain amount of compression, so the required force is large, which will cause discomfort to the operator's hands and is not conducive to installation and assembly. Utility Model Content

[0004] The purpose of this invention is to provide an optical cable splicing device, which aims to solve the problem that optical cables are not easy to install in the prior art.

[0005] In a first aspect, embodiments of the present invention provide an optical cable splicing device, comprising:

[0006] The optical cable outer sleeve has a first through hole, and the optical cable outer sleeve can rotate along the axial direction of the first through hole;

[0007] The inner sleeve of the optical cable is partially sleeved in the first through hole, and the inner sleeve protrudes from the outer sleeve of the optical cable. The inner sleeve of the optical cable has a second through hole coaxial with the first through hole.

[0008] The optical cable intermediate sleeve includes a first concentric circle structure and a second concentric circle structure. The first concentric circle structure and the second concentric circle structure share the same center. The second concentric circle structure is disposed outside the first concentric circle structure. An annular receiving space is formed between the first concentric circle structure and the second concentric circle structure. A third through hole coaxial with the first through hole is formed at the center of the first concentric circle structure. The inner sleeve of the optical cable is disposed in the third through hole, and the outer sleeve of the optical cable is disposed outside the second concentric circle structure.

[0009] An optical cable elastic element is disposed inside the annular receiving space. The top of the optical cable elastic element is connected to the outer sleeve of the optical cable, and the bottom of the optical cable elastic element is connected to the middle sleeve of the optical cable. The optical cable elastic element can extend and retract along the direction of the first through hole.

[0010] In some possible embodiments, a straight groove is formed on the bottom sidewall of the inner sleeve of the optical cable. The straight groove penetrates the bottom sidewall of the inner sleeve of the optical cable, and one end of the straight groove communicates with the bottom of the inner sleeve of the optical cable. When the optical cable is inserted into the second through hole, the pin on the optical cable is inserted into the straight groove from the end of the straight groove that communicates with the bottom of the inner sleeve of the optical cable.

[0011] In some possible embodiments, a locking hole is also formed on the bottom sidewall of the inner sleeve of the optical cable, the locking hole penetrating the bottom sidewall of the inner sleeve of the optical cable.

[0012] In some possible embodiments, the optical cable splice device further includes a steel ball that is engaged in the slot.

[0013] In some possible embodiments, there are multiple locking holes, which are evenly distributed on the bottom sidewall of the inner sleeve of the optical cable.

[0014] In some possible embodiments, there are multiple steel balls, and the number of multiple steel balls and multiple slots are the same, with one steel ball disposed in each slot.

[0015] In some possible embodiments, there are multiple optical cable elastic elements disposed inside the annular receiving space and surrounding the inner sleeve of the optical cable.

[0016] In some possible embodiments, the optical cable elastic element is an optical cable spring, which is sleeved on the outside of the inner sleeve of the optical cable and disposed in the annular receiving space.

[0017] In some possible embodiments, a first thread is formed on the inner wall of the optical cable outer sleeve, and a second thread is formed on the outer wall of the optical cable inner sleeve, wherein the first thread and the second thread are matched with each other.

[0018] In some possible embodiments, both the first thread and the second thread are fine-pitch threads.

[0019] This utility model provides an optical cable splicing device, comprising: an inner optical cable sleeve, an elastic element, an intermediate optical cable sleeve, and an outer optical cable sleeve arranged sequentially around the cable. The optical cable splicing device provided by this utility model offers precise optical cable positioning and convenient locking, requiring minimal locking force, and making optical cable installation simple and reliable. Attached Figure Description

[0020] The technical solution and other beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0021] Figure 1A cross-sectional view of an embodiment of the optical cable splicing device provided in this utility model;

[0022] Figure 2 A schematic diagram of an embodiment of the optical cable intermediate sleeve provided in this utility model;

[0023] Figure 3 A schematic diagram of an embodiment of the optical cable inner sleeve provided in this utility model;

[0024] Figure 4 A schematic diagram showing the connection between the inner sleeve of the optical cable and the optical cable provided in this embodiment of the utility model;

[0025] Figure 5 This is an enlarged schematic diagram of the steel ball position of the optical cable splicing device provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of an embodiment of the optical cable elastic element provided in this utility model;

[0027] Figure 7 An exploded view of an embodiment of the optical cable splicing device provided in this utility model. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the present invention. Similarly, the following embodiments are only some, not all, embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the following description of this utility model, "some embodiments" are used, which describe a subset of all possible embodiments. However, it is understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0030] In the following description of this utility model, the terms "first, second, third" are used only to distinguish similar objects and do not represent a specific order of objects. It is understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this utility model described herein can be implemented in an order other than that illustrated or described herein.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to limit the invention.

[0032] The following detailed description is provided with reference to specific embodiments. It should be noted that the sequence numbers of the embodiments are not intended to limit the preferred order of the embodiments. This utility model provides an optical cable splicing device. The structure of the optical cable splicing device provided by the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 This is a cross-sectional view of an embodiment of the optical cable splicing device provided by this utility model. Figure 2 This is a schematic diagram of an embodiment of the optical cable intermediate sleeve provided by this utility model; in Figure 1 Figure 2 In the illustrated embodiment, the optical cable splice device mainly includes the following structures:

[0034] The optical cable outer sleeve 10 has a first through hole that penetrates through the optical cable outer sleeve, and the optical cable outer sleeve 10 can rotate along the axial direction of the first through hole.

[0035] The inner sleeve 20 of the optical cable is partially sleeved in the first through hole, and the inner sleeve 20 protrudes from the outer sleeve of the optical cable. The inner sleeve 20 of the optical cable forms a second through hole coaxial with the first through hole.

[0036] The optical cable intermediate sleeve 30 includes a first concentric circle structure 301 and a second concentric circle structure 302. The first concentric circle structure 301 and the second concentric circle structure 302 share the same center. The second concentric circle structure 302 is disposed outside the first concentric circle structure 301. An annular receiving space 303 is formed between the first concentric circle structure 301 and the second concentric circle structure 302. A third through hole coaxial with the first through hole is formed at the center of the first concentric circle structure 301. The inner sleeve 20 of the optical cable is disposed in the third through hole, and the outer sleeve 10 of the optical cable is disposed outside the second concentric circle structure 302.

[0037] The optical cable elastic element 40 is disposed inside the annular receiving space 303. The top of the optical cable elastic element 40 is connected to the optical cable outer sleeve 10, and the bottom of the optical cable elastic element 40 is connected to the optical cable intermediate sleeve 30. The optical cable elastic element 40 can extend and retract along the direction of the first through hole.

[0038] like Figure 3 The diagram shown is a structural schematic of an embodiment of the optical cable inner sleeve provided by this utility model. Figure 4 This is a schematic diagram illustrating the connection between the inner sleeve of the optical cable and the optical cable, provided in an embodiment of this utility model. Figure 3 Figure 4 In the illustrated embodiment, a straight groove 201 is formed on the bottom sidewall of the inner sleeve 20 away from the outer sleeve. The straight groove 201 penetrates the sidewall of the inner sleeve 20, and one end of the straight groove 201 communicates with the bottom of the inner sleeve 20. Thus, when the optical cable 50 is inserted into the second through hole in the center of the inner sleeve 20, the shaft pin 501 on the optical cable 50 can be inserted into the straight groove 201 from the end of the straight groove that communicates with the bottom of the inner sleeve 20. That is, there is an outwardly protruding shaft pin on the side wall of the optical cable. When the optical cable is inserted into the second through hole, the shaft pin 501 needs to be aligned with the position of the straight groove 201 first. Then, during the insertion of the optical cable, the shaft pin 501 is inserted into the straight groove 201 from the bottom of the straight groove 201, and gradually moves up until it reaches the top of the straight groove 201 as the optical cable continues to move. At this time, the shaft pin 501 is locked in the straight groove 201, and the optical cable and the inner sleeve are also fixed.

[0039] Please continue to refer to this. Figure 3 ,exist Figure 3 In the illustrated embodiment, a locking hole 202 is also formed on the bottom sidewall of the inner sleeve of the optical cable. Similar to the straight slot 201, the locking hole 202 also penetrates the bottom sidewall of the inner sleeve 20; however, the locking hole 202 does not communicate with the bottom of the inner sleeve 20. In some embodiments, the insertion device may further include a steel ball 60, which is engaged in the locking hole 202. Figure 5 The image shown is an enlarged schematic diagram of the steel ball position in the optical cable splicing device provided in an embodiment of this utility model. Figure 5 In this process, the optical cable 50 needs to be inserted into the second through hole in the center of the inner sleeve 20. A locking hole 202 is formed on the bottom side wall of the inner sleeve 20, and a steel ball 60 is secured in the locking hole 202. When the optical cable is inserted into the second through hole, the optical cable 50 will come into contact with the steel ball 60. A conical surface is formed on the optical cable 50 at the point of contact with the steel ball 60, and this conical surface applies pressure to the steel ball, squeezing it. Because the insertion of the optical cable 50 compresses the optical cable elastic element 40, the elastic element 40 applies downward pressure, pushing the intermediate sleeve 30 of the optical cable downward. At this time, the optical cable 50 pushes the inner sleeve upward, while the elastic element 40 pushes the intermediate sleeve 30 downward, squeezing the inner sleeve 20. The steel ball 60 located on the inner sleeve 20 is then secured, thus securing the optical cable and achieving a fixed connection.

[0040] In some embodiments, there may be multiple locking holes 202, which are evenly distributed on the bottom sidewall of the inner sleeve of the optical cable; and there may also be multiple steel balls, the number of which is the same as the number of locking holes, with one steel ball 60 disposed in each locking hole 202. The multiple locking holes 202 and the multiple steel balls 60 can be used to lock the optical cable and the optical cable splice device.

[0041] Please refer to Figure 6 , Figure 6 This is a schematic diagram of an embodiment of the optical cable elastic element provided in this utility model. In this utility model, the optical cable intermediate sleeve 30 forms an annular receiving space 303, the optical cable inner sleeve 20 is disposed in the third through hole at the center of the optical cable intermediate sleeve 30, and the optical cable outer sleeve 10 is disposed on the outside of the optical cable intermediate sleeve 30. The optical cable elastic element 40 is disposed in the annular receiving space 303, the top of the optical cable elastic element 40 is connected to the optical cable outer sleeve 10, the bottom of the optical cable elastic element 40 is connected to the optical cable intermediate sleeve 30, and the optical cable elastic element 40 can extend and retract along the direction of the first through hole. Generally speaking, the top of the optical cable elastic element can be fixedly connected to the optical cable outer sleeve 10, and the bottom of the optical cable elastic element 40 can be fixedly connected to the optical cable intermediate sleeve 30, only controlling the optical cable elastic element to extend and retract in the axial direction (i.e., the up and down direction) along the first through hole.

[0042] Please refer to Figure 6 The elastic element of the optical cable can be an optical cable spring, which is sleeved on the outside of the inner sleeve 20 of the optical cable and disposed in the annular receiving space 303 of the intermediate sleeve 30 of the optical cable. It should be noted that only part of the optical cable spring 40 is disposed in the annular receiving space 303. Since the optical cable spring is disposed in the annular receiving space 303 and the bottom of the optical cable spring 40 is in direct contact with the intermediate sleeve 30 of the optical cable, when the optical cable spring extends or retracts along the axial direction of the first through hole, the extension and retraction force of the spring can be used to push the intermediate sleeve to achieve vertical displacement, thereby pushing the steel ball 60 to move.

[0043] In the aforementioned embodiments, the optical cable elastic element is a large-sized optical cable spring, which is entirely sleeved on the outside of the inner sleeve 20 of the optical cable. While enabling the extension and retraction of the optical cable spring, the inner sleeve 20 can also limit the movement of the optical cable spring, preventing displacement during its extension and retraction that could affect the insertion accuracy of the optical cable. In other embodiments, there can be multiple optical cable elastic elements, specifically multiple smaller-sized optical cable springs. In this case, the multiple optical cable elastic elements (or multiple optical cable springs) are still located inside the annular receiving space, but they are not sleeved on the outside of the inner sleeve 20; instead, they are arranged around the inner sleeve. These multiple optical cable elastic elements, arranged in this way, can still extend and retract axially in the first through hole, thereby causing the inner sleeve 20 to move vertically. However, it should be noted that when there are multiple optical cable elastic elements arranged around the inner sleeve, the bottoms of the multiple optical cable elastic elements are usually fixed inside the annular receiving space to prevent horizontal displacement.

[0044] In this invention, a first thread is formed on the inner wall of the optical cable outer sleeve 10, and a second thread is formed on the outer wall of the optical cable inner sleeve 20. The first and second threads are matched to allow the optical cable outer sleeve to rotate along the axial direction of the first through hole. It should be noted that since the optical cable inner sleeve 20 is partially fitted into the first through hole, i.e., partially fitted into the optical cable outer sleeve 10, the first thread only needs to be provided on the inner wall of the portion of the optical cable outer sleeve that contacts the optical cable inner sleeve. Similarly, the second thread only needs to be provided on the outer wall of the portion of the optical cable inner sleeve 20 that is not in contact with the optical cable outer sleeve 10. This reduces the difficulty of thread fabrication. Both the first and second threads in this invention are fine-pitch threads. Fine-pitch threads have a very small helix angle, requiring only a small rotational force to achieve the required compression of the elastic element. This allows operators to insert or remove the optical cable with minimal force, improving work efficiency and reducing the difficulty of inserting and removing the optical cable.

[0045] like Figure 7 The image shown is an exploded view of an embodiment of the optical cable splicing device provided by this utility model. Figure 7 When the optical cable 50 is not inserted, rotating the outer sleeve 10 relaxes the elastic element 40. When the optical cable 50 is inserted into the inner sleeve 20 along the axis, the optical cable 50 moves upward, compressing the elastic element and pushing the inner sleeve 20 upward. The compressed elastic element 40 then applies a rebound force downward to the middle sleeve 30, pushing it downward. At this time, the optical cable 50 and the inner sleeve 20 move upward, and the middle sleeve 30 moves downward. These two opposing forces reduce the gap between the inner sleeve, the middle sleeve, and the three conical surfaces on the optical cable, until the steel ball is clamped, thereby locking the optical cable and the optical cable splice device.

[0046] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An optical cable splicing device, characterized in that, include: The optical cable outer sleeve has a first through hole, and the optical cable outer sleeve can rotate along the axial direction of the first through hole; The inner sleeve of the optical cable is partially sleeved in the first through hole, and the inner sleeve protrudes from the outer sleeve of the optical cable. The inner sleeve of the optical cable has a second through hole coaxial with the first through hole. The optical cable intermediate sleeve includes a first concentric circle structure and a second concentric circle structure. The first concentric circle structure and the second concentric circle structure share the same center. The second concentric circle structure is disposed outside the first concentric circle structure. An annular receiving space is formed between the first concentric circle structure and the second concentric circle structure. A third through hole coaxial with the first through hole is formed at the center of the first concentric circle structure. The inner sleeve of the optical cable is disposed in the third through hole, and the outer sleeve of the optical cable is disposed outside the second concentric circle structure. An optical cable elastic element is disposed inside the annular receiving space. The top of the optical cable elastic element is connected to the outer sleeve of the optical cable, and the bottom of the optical cable elastic element is connected to the middle sleeve of the optical cable. The optical cable elastic element can extend and retract along the direction of the first through hole.

2. The optical cable splicing device according to claim 1, characterized in that, A straight groove is formed on the bottom side wall of the inner sleeve of the optical cable. The straight groove penetrates the bottom side wall of the inner sleeve of the optical cable, and one end of the straight groove is connected to the bottom of the inner sleeve of the optical cable. When the optical cable is inserted into the second through hole, the pin on the optical cable is inserted into the straight groove from the end of the straight groove that is connected to the bottom of the inner sleeve of the optical cable.

3. The optical cable splicing device according to claim 1, characterized in that, A locking hole is also formed on the bottom side wall of the inner sleeve of the optical cable, and the locking hole penetrates the bottom side wall of the inner sleeve of the optical cable.

4. The optical cable splicing device according to claim 3, characterized in that, The optical cable splice device also includes a steel ball, which is engaged in the slot.

5. The optical cable splicing device according to claim 4, characterized in that, There are multiple locking holes, which are evenly distributed on the bottom sidewall of the inner sleeve of the optical cable.

6. The optical cable splicing device according to claim 5, characterized in that, There are multiple steel balls, and the number of steel balls and multiple locking holes are the same, with one steel ball placed in each locking hole.

7. The optical cable splicing device according to claim 1, characterized in that, The optical cable elastic element is multiple, and the multiple optical cable elastic elements are arranged inside the annular receiving space and surround the inner sleeve of the optical cable.

8. The optical cable splicing device according to claim 1, characterized in that, The optical cable elastic element is an optical cable spring, which is sleeved on the outside of the inner sleeve of the optical cable and disposed in the annular accommodating space.

9. The optical cable splicing device according to claim 1, characterized in that, A first thread is formed on the inner wall of the optical cable outer sleeve, and a second thread is formed on the outer wall of the optical cable inner sleeve, with the first thread and the second thread matching each other.

10. The optical cable splicing device according to claim 9, characterized in that, Both the first thread and the second thread are fine-pitch threads.

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