MPO pre-assembly connector

Abstract

The utility model discloses an MPO preassembly connector, including connecting subassembly, retainer, shell subassembly, connecting subassembly includes the cable core subassembly, metal crimp ring, tail sleeve, before use, the utility model discloses preassembly, the tail sleeve line is sleeved into the line body, then the line body passes through metal crimp ring, retainer ring, shell subassembly, the cable core subassembly includes the cable core subassembly, metal crimp ring, the tail sleeve line is sleeved into the tail sleeve line, the tail sleeve line passes through the metal crimp ring, the retainer ring, the shell subassembly and the cable core subassembly. The metal crimping ring is in threaded connection with the tail part of the stop ring, the tail sleeve is sleeved on the outer side of the metal crimping ring and is in interference fit with the metal crimping ring to fix the metal crimping ring to form a semi-finished product, and the top of the wire body is assembled with the cable core assembly. The pull shell is pulled by the pull hook to drive the semi-finished product to penetrate through the pipeline, after the semi-finished product penetrates through the pipeline, the pull shell is unscrewed, the shell assembly and the retainer are buckled and connected to the outer side of the cable core assembly in a sleeving mode, and then the whole MPO connector can be completed. The shell assembly is tightly buckled with the retainer, and the whole structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, in particular to an MPO pre-assembled connector. Background Art

[0002] With the growing demand for communication bandwidth, optical fiber has been widely used in wired communication networks. The current quick connector is used to lay the line through the pipeline when the fiber is delivered to the home. The traditional MPO fiber optic connector is first made in the factory. When it is needed on-site, it is necessary to remove some of the assembled parts and use auxiliary tools to help the connector pass through the pipeline and then reassemble. The whole process is complicated, and the reassembly is extremely inconvenient, and the tightness of the reassembled structure will be significantly affected. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an MPO pre-assembled connector.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an MPO preassembled connector, including a wire body composed of an optical cable wrapped in a wire sleeve, and also including a connecting component, a stopper sleeved on the outside of the connecting component, and a shell component sleeved with the stopper, the connecting component includes a cable core component fixedly connected to the tail end of the wire body, a metal crimping ring sleeved on the tail of the stopper and fixedly connected to the wire body, a tail sleeve sleeved on the outside of the tail of the metal crimping ring and fixedly connected to it, the stopper is sleeved on the outside of the wire body and threadedly connected to the metal crimping ring, the cable core component passes through the stopper and is arranged on the upper side of the stopper, and the shell component is sleeved on the outside of the stopper and the cable core component.

[0005] Preferably, the stop member includes a hollow circular first connecting portion, a hollow circular second connecting portion concentrically connected to and fixedly connected to the first connecting portion, and a stop portion fixedly connected to the second connecting portion, a first external thread is provided on the outer side of the first connecting portion, a second external thread is provided on the outer side of the second connecting portion, two parallel cross-sections are provided on the outer side of the second external thread, the stop portion is arranged parallel to the cross-sections, the stop portion is located on the upper side of the second connecting portion, and the top of the second connecting portion and the bottom of the stop portion form a first step.

[0006] Preferably, the stop portion includes two symmetrically arranged └-shaped stop blocks, the stop block includes a vertical block forming a └ shape and a horizontal block forming a 90° right angle with the vertical block, the horizontal block is arranged at the lower part of the stop block, the horizontal block extends toward the center line of the first connecting part and the second connecting part and protrudes from the vertical block, the two stop blocks are symmetrical relative to the center line of the first connecting part and the second connecting part, a first gap is formed between the two horizontal blocks, and a second gap located above the first gap is formed between the two vertical blocks.

[0007] Preferably, the vertical block is provided with a buckle on the outer side away from the horizontal block, the edge of the horizontal block toward the center line direction of the first connecting part and the second connecting part is provided with arc shape 1, and the edge of the vertical block toward the center line direction of the first connecting part and the second connecting part is provided with arc shape 2.

[0008] Preferably, the cable core assembly includes a cable core, an adapter fixedly connected to the tail end of the cable core, and a spring sleeved on the outside of the cable core and arranged on the lower side of the adapter, the lower part of the spring is limited in the first gap, the upper part of the spring is arranged in the second gap, the adapter is arranged on the upper side of the setting block, and the width of the adapter is greater than the width of the second gap.

[0009] The beneficial effect of the utility model is to provide an MPO preassembled connector. The utility model is used in conjunction with a pull shell. Before use, the utility model is first preassembled, the tail sleeve line is sleeved into the line body, and then the line body passes through the metal crimping ring and the stop ring, the metal crimping ring is threadedly connected with the first external thread of the tail of the stop ring, the tail sleeve is sleeved on the outside of the metal crimping ring and is interference fit with the metal crimping ring to fix the metal crimping ring to form a semi-finished product, the top of the line body is assembled with the cable core assembly, when the utility model needs to pass through the pipeline, the pull shell is connected with the second external thread of the stop ring, the pull hook is used to pull the pull shell to drive the semi-finished product to pass through the pipeline, after passing through the pipeline, the pull shell is twisted open, and when the pull tube is removed, the shell assembly is sleeved on the outside of the stopper along the direction of the cut surface and buckled with the outside of the stopper, the first step is set to limit the shell assembly in the downward direction, the setting of the cut surface ensures the correctness of the installation orientation of the shell assembly, convenient installation, and the overall structure is stable.

[0010] The utility model adopts the pulling pipe cooperation when passing through the pipeline, so it is convenient to pass through the pipeline, and the reassembly is convenient, and the tightness of the structure after reassembly is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the MPO pre-assembled connector of the utility model.

[0012] Figure 2 It is a schematic diagram of the exploded structure of the MPO pre-assembled connector of the utility model.

[0013] Figure 3 It is a structural schematic diagram of a stop block of the MPO pre-assembled connector of the utility model.

[0014] Figure 4 It is a partial structural schematic diagram of the MPO pre-assembled connector of the utility model. DETAILED DESCRIPTION

[0015] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0016] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the 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 understood as a limitation on the present utility model. In addition, the terms "one", "two", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. It should also be noted in the description of the present utility model that, unless otherwise clearly specified and limited, the terms "set" and "connection" 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] Reference Figures 1 to 4 The utility model is implemented as follows: An MPO preassembled connector comprises a line body 1 consisting of an optical cable wrapped in a wire sleeve, and also comprises a connecting component 2, a stopper 3 sleeved on the outside of the connecting component 2, and a shell component 4 sleeved on the stopper 3, wherein the connecting component 2 comprises a cable core component 21 fixedly connected to the tail end of the line body 1, a metal crimping ring 22 sleeved on the tail of the stopper 3 and fixedly connected to the line body 1, and a tail sleeve 23 sleeved on the outside of the tail of the metal crimping ring 22 and fixedly connected thereto, the stopper 3 is sleeved on the outside of the line body 1 and is threadedly connected to the metal crimping ring 22, the cable core component 21 passes through the stopper 3 and is arranged on the upper side of the stopper 3, and the shell component 4 is sleeved on the outside of the stopper 3 and the cable core component 21.

[0018] When the utility model is used, it is used in conjunction with the pull shell 5. Before use, the utility model is pre-assembled, the tail sleeve 23 is inserted into the wire body 1, and then the wire body 1 passes through the metal crimping ring 22 and the stopper 3. The metal crimping ring 22 is threadedly connected to the tail of the stopper 3. The tail sleeve 23 is sleeved on the outside of the metal crimping ring 22 and is interference-fitted with the metal crimping ring 22 to fix the metal crimping ring 22 to form a semi-finished product. The top of the wire body 1 is assembled with the cable core assembly 21. When the utility model needs to pass through the pipeline, the pull shell 5 is threadedly connected with the stopper ring, and the pull shell 5 is pulled by a hook to drive the semi-finished product through the pipeline. After passing through the pipeline, the pull shell 5 is twisted open, and the housing assembly 4 is buckled with the stopper 3 and sleeved on the outside of the cable core assembly 21 to complete the entire MPO connector. The housing assembly 4 is tightly buckled with the stopper 3, and the overall structure is stable.

[0019] The utility model is pre-assembled, and when passing through a pipeline, a pulling pipe is adopted to facilitate passing through the pipeline, and reassembly is convenient. After reassembly, the tightness of the structure combination is high and the structure is stable.

[0020] The stopper 3 includes a hollow circular first connection part 31, a hollow circular second connection part 32 that is concentrically connected to and fixedly connected to the first connection part 31, and a stopper 33 that is fixedly connected to the second connection part 32. The first connection part 31 is provided with a first external thread 311 on the outside, and the first external thread 311 is threadedly connected to the metal crimping ring 22. The second connection part 32 is provided with a second external thread 321 on the outside, and the second external thread 321 is used for threading with the pull tube. When removing the pull tube, the pull tube can be twisted out of the second external thread 321. Two parallel cut surfaces 322 are provided on the outside of the second external thread 321, and the stopper 33 is arranged parallel to the cut surfaces 322. The stopper 33 is arranged on the upper side of the second connection part 32, and the top of the second connection part 32 and the bottom of the stopper 33 form a first step 34. After the pull tube is removed, the housing assembly 4 is sleeved on the outer side of the stopper 3 along the direction of the cut surface 322 and is buckled with the outer side of the stopper 3. The first step 34 is set to limit the housing assembly 4 in the downward direction. The setting of the cut surface 322 ensures the correct installation orientation of the housing assembly 4.

[0021] On the basis of the above embodiment, as a further preference, the stop portion 33 includes two symmetrically arranged └-shaped stop blocks 331, the stop block 331 includes a vertical block 3311 forming a └ shape and a horizontal block 3312 forming a 90° right angle with the vertical block 3311, the horizontal block 3312 is arranged at the lower part of the stop block 331, the horizontal block 3312 extends and protrudes from the vertical block 3311 toward the center line of the first connecting portion 31 and the second connecting portion 32, the two stop blocks 331 are symmetrical relative to the center line of the first connecting portion 31 and the second connecting portion 32, a first gap 3313 is formed between the two horizontal blocks 3312, and a second gap 3314 located on the upper side of the first gap 3313 is formed between the two vertical blocks 3311.

[0022] The cable core assembly 21 includes a cable core 211, an adapter 212 fixedly connected to the tail end of the cable core 211, and a spring 213 sleeved on the outside of the cable core 211 and arranged on the lower side of the adapter 212, the lower part of the spring 213 is limited in the first gap 3313, the upper part of the spring 213 is arranged in the second gap 3314, the adapter 212 is arranged on the upper side of the setting block, and the width of the adapter 212 is greater than the width of the second gap 3314. The width of the first gap 3313 is slightly smaller than the outer diameter of the spring 213.

[0023] When the cable core assembly 21 is assembled, the wire body 1 passes through the first connecting portion 31, the second connecting portion 32, the first gap 3313, and the second gap 3314. The outer skin of the tail of the wire body 1 is peeled off to form the cable core 211. The cable core 211 is inserted into the adapter 212. The lower part of the spring 213 is defined in the first gap 3313. Since the width of the first gap 3313 is slightly smaller than the outer diameter of the spring 213, the spring 213 is fixed in the first gap 3313. The upper part of the spring 213 is defined in the second gap 3314. The upper part of the spring 213 can elastically move up and down in the second gap 3314. In a normal state, the spring 213 is in a relaxed state, and the spring 213 supports the adapter 212 and is higher than the top of the vertical part. When the plug-in is applied, the adapter 212 moves downward under the action of the plug-in force. Under the support force of the spring 213, the adapter 212 is stopped and positioned by the top of the vertical block 3311. Since the upper portion of the spring 213 can elastically move up and down in the second gap 3314, when the adapter 212 is withdrawn from the insertion, under the reaction force of the spring 213, the adapter 212 withdraws a distance from the top of the vertical block 3311 and returns to its original position.

[0024] On the basis of the above embodiment, as a further preference, a buckle 33111 is provided on the outer side of the vertical block 3311 away from the horizontal block 3312, an arc-shaped edge 33121 is provided on the edge of the horizontal block 3312 toward the center line direction of the first connection part 31 and the second connection part 32, and an arc-shaped edge 33112 is provided on the edge of the vertical block 3311 toward the center line direction of the first connection part 31 and the second connection part 32.

[0025] After the pull tube is removed, the shell assembly 4 is sleeved on the outer side of the stopper 3 along the direction of the cut surface 322 and buckled with the outer side of the stopper 3. The setting of the first step 34 limits the shell assembly 4 in the downward direction. The setting of the arc shape 1 33121 and the diameter of the first gap 3313 are slightly smaller than the outer diameter of the spring 213, so that the first gap 3313 can better accommodate the spring 213 and the spring 213 can be fixed in the first gap 3313. The setting of the arc shape 2 33112 and the diameter of the second gap 3314 are slightly larger than the diameter of the spring 213, so that the second gap 3314 can better accommodate the spring 213, so that the spring 213 can move up and down in the second gap 3314.

[0026] It should be noted that for the preferred implementation of the utility model, ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An MPO preassembled connector, comprising a cable body (1) consisting of an optical cable wrapped in a cable sleeve, characterized in that: The invention comprises a connection component (2), a stopper (3) sleeved on the outside of the connection component (2), and a shell component (4) sleeved on the stopper (3); the connection component (2) comprises a cable core component (21) fixedly connected to the tail end of the wire body (1), a metal crimping ring (22) sleeved on the tail of the stopper (3) and fixedly connected to the wire body (1), and a tail sleeve (23) sleeved on the outside of the tail of the metal crimping ring (22) and fixedly connected thereto; the stopper (3) sleeved on the outside of the wire body (1) and threadedly connected to the metal crimping ring (22); the cable core component (21) passes through the stopper (3) and is arranged on the upper side of the stopper (3); and the shell component (4) sleeved on the outside of the stopper (3) and the cable core component (21).

2. The MPO preassembled connector according to claim 1, characterized in that The stopper (3) comprises a hollow circular first connection part (31), a hollow circular second connection part (32) which is concentrically connected to and fixedly connected to the first connection part (31), and a stopper (33) which is fixedly connected to the second connection part (32), wherein a first external thread (311) is provided on the outer side of the first connection part (31), a second external thread (321) is provided on the outer side of the second connection part (32), two parallel cross-sections (322) are provided on the outer side of the second external thread (321), the stopper (33) is arranged parallel to the cross-sections (322), the stopper (33) is located on the upper side of the second connection part (32), and the top of the second connection part (32) and the bottom of the stopper (33) form a first step (34).

3. The MPO preassembled connector according to claim 2, characterized in that The stop portion (33) comprises two └-shaped stop blocks (331) which are symmetrically arranged. The stop block (331) comprises a vertical block (3311) which forms a └ shape and a horizontal block (3312) which forms a 90° right angle with the vertical block (3311). The horizontal block (3312) is arranged at the lower part of the stop block (331). The horizontal block (3312) extends toward the center line of the first connecting portion (31) and the second connecting portion (32) and protrudes from the vertical block (3311). The two stop blocks (331) are symmetrical with respect to the center line of the first connecting portion (31) and the second connecting portion (32). A first gap (3313) is formed between the two horizontal blocks (3312). A second gap (3314) located on the upper side of the first gap (3313) is formed between the two vertical blocks (3311).

4. The MPO preassembled connector according to claim 3, characterized in that The vertical block (3311) is provided with a buckle (33111) on the outer side away from the horizontal block (3312), the edge of the horizontal block (3312) facing the center line direction of the first connecting part (31) and the second connecting part (32) is provided with an arc-shaped first edge (33121), and the edge of the vertical block (3311) facing the center line direction of the first connecting part (31) and the second connecting part (32) is provided with an arc-shaped second edge (33112).

5. The MPO preassembled connector according to claim 3, characterized in that The cable core assembly (21) comprises a cable core (211), an adapter (212) fixedly connected to the rear end of the cable core (211), and a spring (213) sleeved on the outside of the cable core (211) and arranged on the lower side of the adapter (212), wherein the lower part of the spring (213) is limited in a first gap (3313), the upper part of the spring (213) is arranged in a second gap (3314), the adapter (212) is arranged on the upper side of the setting block, and the width of the adapter (212) is greater than the width of the second gap (3314).

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