Switching sleeve assembly, on-site assembly sleeve assembly and optical fiber switching assembly

Abstract

The utility model provides an adapter sleeve assembly, a field assembly sleeve assembly and an optical fiber adapter assembly, the adapter sleeve assembly is characterized in that a first clamping part and a second clamping part are arranged in a pipe wall, and a micro cable penetrates in from a first end of the adapter sleeve assembly and penetrates out from a second end; the micro cable penetrating through the first end of the adapter sleeve assembly is sleeved with a protection pipe, the protection pipe of the micro cable is clamped to the first clamping part, the micro cable penetrating out of the second end of the adapter sleeve assembly is used for penetrating through the field assembly sleeve assembly to be connected with external equipment, and the second clamping part is used for clamping the sleeve end of the field assembly sleeve assembly. According to the embodiment of the invention, one end of the micro cable is sleeved with the protective tube and clamped by the first clamping part, and the second end of the micro cable is protected by the sleeve end and clamped by the second clamping part, so that the micro cable is not easy to be affected by tensile force during connection and is not easy to break.

Description

Technical Field

[0001] The present invention relates to the technical field of adapter connection structures, and in particular to an adapter sleeve assembly, a field assembled sleeve assembly, and an optical fiber adapter assembly. Background Art

[0002] The on-site assembly sleeves of optical fibers mainly include melting end (quick melting) process sleeve assemblies, cold connection process sleeve assemblies and grinding process sleeve assemblies, which are used for optical fiber connections. For example, the melting end or quick melting process directly installs the optical fiber connector on the trunk optical cable. If the operation is wrong, the optical fiber connector can be reused and the fiber can be stripped and installed on the trunk optical cable again. However, since the optical fiber connector has tensile force when connected, if the optical fiber is very light and thin, such as the conventional micro cable with a diameter of only about 1mm, the tensile force of the optical fiber connector on the micro cable can easily break the micro cable. Summary of the invention

[0003] In order to overcome the problems existing in the related art, this specification provides a transfer sleeve assembly, a field assembly sleeve assembly and an optical fiber transfer assembly, which can eliminate the influence of the tensile force of the micro cable when connecting and are not easy to be broken.

[0004] According to a first aspect of an embodiment of the present specification, a transition sleeve assembly is provided, wherein a first clamping portion and a second clamping portion are arranged in the tube wall, and the microcable passes through the first end of the transition sleeve assembly and passes through the second end; the microcable passing through the first end of the transition sleeve assembly is provided with a protective tube, and the protective tube of the microcable is clamped in the first clamping portion, and the microcable passing through the second end of the transition sleeve assembly is used to pass through the on-site assembly sleeve assembly to connect with external equipment, and the second clamping portion is used to clamp the sleeve end of the on-site assembly sleeve assembly.

[0005] Preferably, the first clamping portion is arranged on a first elastic sheet on the inner tube wall of the adapter sleeve assembly, and the diameter of the middle portion of the first elastic sheet is smaller than the diameter of the end portion.

[0006] Preferably, the second clamping portion is arranged on a second elastic sheet on the inner tube wall of the adapter sleeve assembly, and the diameter of the middle portion of the second elastic sheet is smaller than the diameter of the sleeve end of the sleeve assembly assembled on site at the opposite end.

[0007] Preferably, it also includes a pressing ring, which extends into the first end of the adapter sleeve assembly, and the aperture of the pressing ring is larger than the aperture of the first end. When the pressing ring is pressed, the pressing ring extends into and opens the first clamping part, and the protective tube is inserted or withdrawn; when the pressing ring is released, the first clamping part is reset, and the pressing ring returns to its original position.

[0008] Furthermore, a limit rod is arranged on the tube wall of the pressing ring, and a long slot is arranged at a corresponding position of the side wall of the adapter sleeve assembly. The size of the long slot is consistent with the stroke of the pressing ring. When the pressing ring moves, the limit rod moves in the long slot.

[0009] According to the second aspect of the embodiment of this specification, a field-assembled sleeve assembly is provided, including a first component and a second component, the first component and the second component are fixedly connected, the sleeve end is arranged on the first component, the micro cable passes through the sleeve end and passes through the second component to connect with an external device, and the sleeve end is used to be clamped by the second clamping part of the adapter sleeve assembly.

[0010] Preferably, the first component has a columnar portion with an external thread, the second component is provided with a countersunk hole matching the columnar portion, and the countersunk hole has an internal thread, and the first component and the second component are screwed and fixed via the external thread and the internal thread.

[0011] Furthermore, a first locking component is provided on the outer side of the second component, and a second locking component is provided on the second end of the adapter sleeve assembly. After the first component and the second component are fixedly connected, they extend into the second end of the adapter sleeve assembly, and the first locking component is locked with the second locking component.

[0012] Furthermore, a cross hole is provided on the outer surface of the second component, and the first locking member is a strip plate, which can rotate in the cross hole, and a T-shaped opening is provided at the port edge of the second end of the adapter sleeve assembly at the opposite end along the length direction of the tube body; when the strip plate is rotated to the horizontal position, the on-site assembled sleeve assembly and the adapter sleeve assembly are in an unlocked state; when the strip plate is rotated to the vertical position, the on-site assembled sleeve assembly and the adapter sleeve assembly are in a locked state.

[0013] According to a third aspect of the embodiments of this specification, a fiber optic switching assembly is provided, including the above-mentioned switching sleeve assembly and the above-mentioned field assembly sleeve assembly.

[0014] Furthermore, it also includes a push rod, which is hollow and has a long groove running through the tube wall. The optical fiber is placed in the hollow tube body of the push rod through the long groove. The push rod extends into the tube body of the adapter sleeve assembly and opens the second clamping part, and the sleeve end of the on-site assembled sleeve assembly is inserted or withdrawn.

[0015] The technical solutions provided by the embodiments of this specification may have the following beneficial effects:

[0016] One end of the microcable of the adapter sleeve assembly of the embodiment of the present specification is sleeved with a protective tube and clamped by the first clamping part, and the sleeve end of the on-site assembled sleeve assembly is clamped by the second clamping part. In this way, the microcable is not easily affected by the tensile force when connected and is not easy to be broken.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0019] Figure 1 It is a schematic diagram of the structure of the optical fiber switching assembly according to an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the disassembly of the adapter sleeve assembly and the field-assembled sleeve assembly of the embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the assembly process of the optical fiber switching assembly according to the embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of the disassembly process of the optical fiber switching assembly according to an embodiment of the present application. Description of the drawings:

[0024] 1-adapter sleeve assembly; 11-first clamping part; 12-second clamping part; 13-T-shaped opening; 14-long notch; 2-micro cable; 3-protection tube; 4-push rod; 5-pressing ring; 51-limiting rod; 6-on-site assembled sleeve assembly; 61-second component; 62-first component; 63-sleeve end; 64-strip plate DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0026] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0028] like Figure 1As shown, the embodiment of the present application provides a transition sleeve assembly, wherein a first clamping portion 11 and a second clamping portion 12 are arranged in the tube wall of the tube body of the transition sleeve assembly 1, and the microcable 2 is inserted into the first end of the transition sleeve assembly and is inserted out from the second end. The microcable located in the direction of the first end of the transition sleeve assembly is provided with a protective tube 3, and the microcable 2 with the protective tube 3 is clamped in the first clamping portion 11. The microcable 2 inserted in the direction of the second end of the transition sleeve assembly is then passed through the field assembly sleeve assembly 6 to be connected with an external device. The field assembly sleeve assembly 6 includes a sleeve end 63, and the microcable 2 is inserted into the field assembly sleeve assembly 6 from the sleeve end 63. The second clamping portion 12 of the transition sleeve assembly is used to clamp the sleeve end 63 of the field assembly sleeve assembly. The protective tube is sleeved on one end of the microcable of the transition sleeve assembly and is clamped by the first clamping portion, and the sleeve end of the field assembly sleeve assembly is clamped by the second clamping portion, so that the microcable is not easily affected by the tensile force when connected and is not easily broken.

[0029] In the embodiment of the present application, the first clamping part 11 is configured as a first spring piece of the inner wall of the tube body of the adapter sleeve assembly, and the diameter of the middle part of the first spring piece is smaller than the diameter of the end part. The first spring piece can be only provided on a part of the tube wall, or can be wound around in a circle, without limitation. The microcable with a protective tube is clamped in the middle part of the first clamping part. Of course, the first clamping part structure is only used as an example, and other first clamping part structures that can clamp the microcable with a protective tube are within the protection scope of the embodiment of the present application.

[0030] In the embodiment of the present application, the second clamping part is configured as a second spring piece of the inner wall of the adapter sleeve assembly tube body, and the middle part of the second spring piece is smaller than the diameter of the sleeve end of the sleeve assembly assembled on site at the opposite end. The sleeve end of the sleeve assembly assembled on site is clamped in the middle part of the second clamping part. The second spring piece can be only set on a part of the pipe wall, or it can be wound around a circle, without limitation. Of course, the second clamping part structure is only used as an example, and other second clamping part structures that meet the requirements of clamping the sleeve end are all within the protection scope of the embodiment of the present application.

[0031] The embodiment of the present application also includes a pressing ring 5, which extends into the first end of the adapter sleeve assembly. The pressing ring includes a cylindrical hollow cylinder, and the aperture of the pressing ring is larger than the aperture of the first end of the adapter sleeve assembly. When the pressing ring is pressed, the pressing ring 5 extends into and opens the first clamping portion 11, and then the protective tube 3 is inserted or withdrawn. When the pressing ring 5 is released, the first clamping portion 11 is reset, and the pressing ring 5 returns to its original position under the elastic rebound force of the first clamping portion 11.

[0032] In the embodiment of the present application, a limit rod 51 is provided on the outer wall of the pressing ring 5, and a long slot 14 is provided at a corresponding position on the side wall of the adapter sleeve assembly, and the size of the long slot 14 is consistent with the stroke of the pressing ring 5. When the pressing ring moves, the limit rod moves in the long slot. In the implementation of the present application, the limit rod is a long rod as the name suggests. Through the cooperation and limitation of the limit rod and the long slot, excessive pressing of the pressing ring is avoided, the pressing ring is stuck in the first clamping part, and the pressing ring is prevented from slipping out of the first end of the adapter sleeve assembly when it is loosened.

[0033] The second aspect of the embodiment of the present application provides a field-assembled sleeve assembly, including a first component and a second component. The first component and the second component are fixedly connected. As an example, in the embodiment of the present application, the first component has a columnar portion, and the columnar portion has an external thread, and the second component is provided with a countersunk hole matching the columnar portion, and the countersunk hole has an internal thread. The first component and the second component are fixed by screwing the external thread and the internal thread. Of course, the fixation of the first component and the second component can also be carried out in other ways, all of which are within the scope of protection of the present application and will not be repeated here. On the basis of the above embodiment, the sleeve end is arranged on the first component, and the microcable is inserted from the sleeve end and passed out from the second component, and the microcable after passing through is connected to the external device. The sleeve end can be compressed by a pressure clamp, and then the sleeve end is clamped by the second clamping part. Because the sleeve end cannot be used again after being compressed, the sleeve end needs to be replaced when it needs to be used a second time.

[0034] like Figure 1 and Figure 2 As shown, the outer side surface of the second component 61 of the field assembly sleeve assembly is provided with a first locking member, and the second end of the adapter sleeve assembly is provided with a second locking member. After the first component 62 and the second component 61 are fixed, they extend into the second end of the adapter sleeve assembly, and the first locking member is locked with the second locking member. This prevents the field assembly sleeve assembly from moving after the adapter sleeve assembly and the field assembly sleeve assembly are installed together. As an example of an embodiment of the present application, a cross hole is provided on the outer side surface of the second component, and the first locking member is a strip plate 64. The strip plate is rotatable in the cross hole (not shown), and the port edge of the second end of the adapter sleeve assembly is provided with a T-shaped opening (13) along the length direction of the tube body. When the strip plate is rotated to the horizontal position, the field assembly sleeve assembly and the adapter sleeve assembly are in an unlocked state. When the strip plate is rotated to the vertical position, the field assembly sleeve assembly and the adapter sleeve assembly are in a locked state. This embodiment is only used as an example and does not constitute a limitation on the structure of the first locking member and the second locking member. As long as the structure has the same function and effect, it is within the protection scope of the present application.

[0035] A third aspect of the embodiments of the present application provides a fiber optic switching assembly, including any switching sleeve assembly in the above embodiments and any field assembly sleeve assembly in the above embodiments.

[0036] like Figure 1As shown, it also includes a push rod 4, which is hollow and has a long groove running through the tube wall (not shown). The micro cable is placed in the hollow tube body of the push rod through the long groove. The push rod extends into the tube body of the adapter sleeve assembly and opens the second clamping part, and the sleeve end of the on-site assembled sleeve assembly is inserted or withdrawn.

[0037] Microcable refers to thin optical fiber. Traditionally, it refers to an optical fiber with a coating on the outside of the bare optical fiber. It is usually about 1 mm. Of course, optical fibers that are thinner or slightly thicker than this and are easily broken under tensile force still fall within the scope of the microcable referred to in this application.

[0038] For traditional microcables, the microcable is wrapped with a protective tube during deployment, which is usually a microtube with a smaller aperture. The microcable wrapped with the microtube needs to be connected to the external device B as the A end, so the microcable can be blown out of the microtube through an air blowing process. If the blown-out part of the microcable uses the existing hot-melt pigtail method to connect the pigtail with the optical fiber connector to the trunk optical cable. However, there is a problem of selecting the pigtail length specification in this process. If it is too long, the space for storing excess optical cables at the terminal will be tight. If it is not left long, there is a concern that errors in operation will result in the pigtail not having enough operating length, causing the pigtail to be scrapped. In the embodiment of the present application, the blown-out part of the microcable is connected to the external device B through the above-mentioned adapter sleeve assembly and the on-site assembly sleeve assembly.

[0039] Based on the embodiments of the present application and the background description of the micro-cable based on the air blowing process, the assembly and disassembly process of the micro-cable in the present application is described as follows, where the on-site assembly of the sleeve assembly takes the quick-melt sleeve assembly as an example:

[0040] like Figure 1-Figure 3 As shown, the assembly process includes:

[0041] The microcable with microtube is deployed as end A for connection with the end of external device B. The adapter sleeve assembly with a pressure ring on the first end is passed through the microcable, and the microcable is placed in the hollow tube body of the push rod from the long slot of the push rod. The push rod is pushed in from the first end of the adapter sleeve assembly and the second clamping part is opened. The microcable is blown by air through the air blowing process (a), so that the deployed microcable at end A is partially exposed outside the microtube, and the microcable continues to pass through the second part of the quick-melt sleeve assembly (b), and the first part is screwed and fixed with the second part (c). The strip plate is rotated to a horizontal position, and the sleeve end of the quick-melt sleeve assembly is compressed by the pressure clamp and then installed into the hollow tube body of the push rod of the second clamping part of the adapter sleeve assembly (d). The strip plate is rotated to a vertical position, and the quick-melt sleeve assembly is locked (e). The push rod is withdrawn, and the sleeve end is tightened by the second clamping part (f). The microtube is pushed to the first clamping part, and the first clamping part tightens the microcable. Insert the microtube into the first clamping part and the quick-melt head (h).

[0042] Since the sleeve end material is a one-time material and cannot be reused after being pressed by the crimping pliers, if the quick-melt sleeve assembly is to be used again, a new sleeve end needs to be replaced.

[0043] like Figure 1-2 and Figure 4 The disassembly process shown includes:

[0044] Install the assembly (a), first remove the quick-melt head (b), press the pressure ring to shift d, open the first clamping part of the adapter sleeve assembly, and withdraw the micro tube (c), and the pressure ring will reset under the elastic force of the first clamping part (d). Turn the strip plate in the vertical position to the horizontal position to unlock the quick-melt sleeve assembly (e), put the micro cable into the long slot of the push rod, and push it from the first end of the adapter tube sleeve to open the second clamping part, and withdraw the quick-melt sleeve assembly from the second end of the adapter sleeve assembly (f). Discard all the unplugged quick-melt sleeve assembly sleeve ends (g). Remove the micro cable and take out the push rod (not shown).

[0045] During the assembly and disassembly process, since the second clamping part and the first clamping part are respectively opened by the push rod and the pressure ring, no tensile force is generated and the micro cable is not easily broken.

[0046] The words related to directions mentioned in this application, such as up, down, left, right, front, back, etc., shall be based on the corresponding drawings in the specification.

[0047] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0048] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the invention claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0049] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0050] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A transition sleeve assembly, characterized in that: A first clamping portion and a second clamping portion are arranged in the tube wall, and the microcable enters from the first end of the adapter sleeve assembly and exits from the second end; the microcable sleeve passing through the first end of the adapter sleeve assembly is provided with a protective tube, and the protective tube of the microcable is clamped in the first clamping portion, and the microcable exiting from the second end of the adapter sleeve assembly is used to pass through the on-site assembly sleeve assembly to connect with external equipment, and the second clamping portion is used to clamp the sleeve end of the on-site assembly sleeve assembly.

2. The adapter sleeve assembly according to claim 1, characterized in that: The first clamping portion is arranged on a first elastic sheet on the inner wall of the adapter sleeve assembly, and a diameter of a middle portion of the first elastic sheet is smaller than a diameter of an end portion.

3. The adapter sleeve assembly according to claim 1, characterized in that: The second clamping portion is arranged on a second elastic sheet on the inner wall of the adapter sleeve assembly, and the diameter of the middle portion of the second elastic sheet is smaller than the diameter of the sleeve end of the sleeve assembly assembled on site at the opposite end.

4. The adapter sleeve assembly according to claim 1, characterized in that: It also includes a pressing ring, which extends into the first end of the adapter sleeve assembly. The aperture of the pressing ring is larger than the aperture of the first end. When the pressing ring is pressed, the pressing ring extends into and opens the first clamping part, and the protective tube is inserted or withdrawn; when the pressing ring is released, the first clamping part is reset and the pressing ring returns to its original position.

5. The adapter sleeve assembly according to claim 4, characterized in that: A limit rod is arranged on the tube wall of the pressing ring, and a long slot is arranged at a corresponding position of the side wall of the adapter sleeve assembly. The size of the long slot is consistent with the stroke of the pressing ring. When the pressing ring moves, the limit rod moves in the long slot.

6. A field assembled casing assembly, characterized in that: It includes a first component, a second component and a sleeve end. The first component and the second component are fixedly connected. The sleeve end is arranged on the first component. The micro cable passes through the sleeve end and passes through the second component to connect with external equipment. The sleeve end is used to be clamped by the second clamping part of the adapter sleeve assembly.

7. The field assembled casing assembly according to claim 6, characterized in that: The first component has a columnar portion with an external thread, the second component is provided with a countersunk hole matching the columnar portion, and the countersunk hole has an internal thread, and the first component and the second component are screwed and fixed via the external thread and the internal thread.

8. The field assembled casing assembly according to claim 7, characterized in that: A first locking member is disposed on the outer side of the second component, and a second locking member is disposed on the second end of the adapter sleeve assembly. After the first component and the second component are fixedly connected, the first locking member extends into the second end of the adapter sleeve assembly, and the first locking member is locked with the second locking member.

9. The field assembled casing assembly according to claim 8, characterized in that: A cross hole is arranged on the outer side surface of the second component, and the first locking member is a strip plate, which can rotate in the cross hole, and a T-shaped opening is arranged at the port edge of the second end of the adapter sleeve assembly at the opposite end along the length direction of the tube body; when the strip plate is rotated to the horizontal position, the on-site assembled sleeve assembly and the adapter sleeve assembly are in an unlocked state; when the strip plate is rotated to the vertical position, the on-site assembled sleeve assembly and the adapter sleeve assembly are in a locked state.

10. An optical fiber switching assembly, characterized in that: It comprises the transition sleeve assembly described in any one of claims 1 to 5 and the field assembled sleeve assembly described in any one of claims 6 to 9.

11. The optical fiber switching assembly according to claim 10, characterized in that: It also includes a push rod, which is hollow and has a long groove running through the tube wall. The optical fiber is placed in the hollow tube body of the push rod through the long groove. The push rod extends into the tube body of the adapter sleeve assembly and opens the second clamping part, and the sleeve end of the on-site assembled sleeve assembly is inserted or withdrawn.

Images