SC connector test fixture

Abstract

The utility model relates to an SC connector test fixture. The SC connector test fixture comprises an adapter mounting seat, an adapter assembly and a locking assembly, the adapter assembly is mounted on the adapter mounting seat and comprises an APC adapter, an auxiliary shell and an auxiliary inner frame sleeve; the auxiliary shell is installed in the APC adapter, the auxiliary inner frame sleeve is installed in the auxiliary shell, and one end of the auxiliary inner frame sleeve in the axial direction is provided with a first limiting open groove used for being in butt joint with a positioning protrusion on a tail sheath. The locking assembly is installed on the adapter installation base and used for locking or loosening the tail sheath, and the locking assembly comprises a butt joint channel which is communicated with the auxiliary inner frame sleeve and used for allowing the tail sheath to penetrate through. According to the invention, the connector in the shipment state is tested directly by using the SC connector test fixture, so that the assembly process before the test and the disassembly process after the test are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of fiber optic connector technology, and in particular to a test fixture for SC connectors. Background Technology

[0002] In FTTR (Fiber to the Room) network installations, there are some narrow conduit scenarios where conventional pre-connected connectors are too large to pass through. The usual solution is to use SC / APC connectors, adding traction structures and protective measures to ensure they can pass through "3 / 4" of the conduit or wall gaps and can be installed normally.

[0003] The current production method involves assembling small-sized ferrules into SC / APC connectors using various parts, such as... Figure 1 and Figure 2 As shown, Figure 1 The SC connector includes a housing 40, an inner frame 41, a ferrule 42, a tailstock 43, a tail sheath 44, and an optical cable 45. The tail sheath 44 has a positioning protrusion 440, and the inner frame 41 has a limiting groove 410. The inner frame 41 is fitted over the tail sheath 44, and the positioning protrusion 440 is inserted into the limiting groove 410, thus limiting the tail sheath 44 on the inner frame 41 along the axial and radial directions of the optical cable 45. The ferrule 42, tailstock 43, tail sheath 44, and optical cable 45 are assembled into a bullet-shaped, pullable connector, referred to as the shipping connector. This shipping connector is connected to the inner frame 41 before installation. The outer casing 40 yields an SC connector. The SC connector and APC adapter 21 are then assembled into an SC / APC connector. This SC / APC connector serves as the test line (referred to as component B). It is then tested by mating with another SC connector (referred to as component A), which also serves as the test line. Once the test line passes the test, the APC adapter 21, inner frame 41, and outer casing 40 are removed from the test line, and the connector is shipped in a small, pullable shipping state. On the customer side, the shipping state connector is passed through a pipeline scenario and then reassembled with the inner frame 41, outer casing 40, and APC adapter 21 to form an SC / APC connector for use.

[0004] During the production process, the connector in the shipping state needs to be assembled with the inner frame 41 and the outer shell 40, and then installed and tested with the APC adapter 21. After passing the test, it needs to be disassembled again, and then reassembled when in use. This involves repetitive assembly and disassembly, which increases the assembly process and reduces production efficiency. Summary of the Invention

[0005] This application provides an SC connector testing fixture to solve the problem in related technologies where SC / APC connector testing involves assembly before testing and disassembly after testing, which reduces production efficiency.

[0006] This application provides an SC connector test fixture, which includes:

[0007] Adapter mounting base;

[0008] An adapter assembly is mounted on the adapter mounting base. The adapter assembly includes an APC adapter, an auxiliary housing, and an auxiliary inner frame. The auxiliary housing is mounted inside the APC adapter, and the auxiliary inner frame is mounted inside the auxiliary housing. The auxiliary inner frame has a first limiting opening groove on one end along its axial direction for docking with a positioning protrusion on the tail sleeve.

[0009] A locking assembly, mounted on the adapter mounting base, is used to lock or release the tail sleeve, the locking assembly including a mating channel communicating with the auxiliary inner frame sleeve and for the tail sleeve to pass through.

[0010] In some embodiments, the locking assembly includes:

[0011] A locking mounting base has an internal mounting chamber, and the docking channel is located on the locking mounting base and extends through the mounting chamber;

[0012] Two locking blocks are located within the mounting cavity;

[0013] A driving element, which is disposed on the locking mounting base, is used to drive the locking block to move in order to lock or release the tail sleeve.

[0014] In some embodiments, the drive includes:

[0015] An elastomer is disposed within the mounting cavity and located between the inner wall of the locking mounting base and the locking block;

[0016] An operating lever is inserted through the locking mounting base. When the operating lever moves to the first position, it is inserted between the two locking blocks to loosen the tail sleeve. When the operating lever moves to the second position, it is withdrawn from between the two locking blocks, and the elastic body drives the locking blocks to lock the tail sleeve.

[0017] In some embodiments, the elastomer is in a compressed state when the lever is moved to the second position.

[0018] In some embodiments, the end of the locking block opposite to the other locking block is a locking end, and a limit opening is provided on one end of the locking end along the axial direction of the docking channel. The limit openings on the two locking blocks are joined together to form a second limit opening groove.

[0019] The second limiting opening groove and the first limiting opening groove are configured together to dock with the positioning protrusion on the tail sleeve to lock the tail sleeve.

[0020] In some embodiments, the locking block is further provided with a push-in ramp for the operating lever to abut against in order to move the locking block.

[0021] In some embodiments, the operating lever is inserted into the locking mounting base.

[0022] In some embodiments, the operating lever is screwed onto the locking mounting base.

[0023] In some embodiments, the locking mounting base is provided with a through channel, a first limiting boss is provided in the through channel, and a second limiting boss is provided on the operating rod. The operating rod passes through the through channel. When the operating rod moves to the first position, the first limiting boss abuts against the second limiting boss, and the end of the operating rod is located outside the docking channel.

[0024] In some embodiments, the adapter mounting base includes a base and a cover plate, the base having a fixing groove, the adapter assembly being mounted in the fixing groove, and the cover plate covering the base.

[0025] The beneficial effects of the technical solution provided in this application include:

[0026] This application directly utilizes the SC connector test fixture to test connectors in the shipped state, reducing the assembly process before testing and the disassembly process after testing, thereby improving production efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 Exploded view of SC connector;

[0029] Figure 2 This is a schematic diagram of SC connector testing in the prior art;

[0030] Figure 3 A schematic diagram of the SC connector test fixture provided in an embodiment of this application (with hidden locking components);

[0031] Figure 4 This is a schematic diagram of the SC connector test fixture provided in an embodiment of this application;

[0032] Figure 5 A schematic diagram of an adapter component provided in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the auxiliary inner frame provided in the embodiments of this application;

[0034] Figure 7 A schematic diagram of the auxiliary housing provided in the embodiments of this application;

[0035] Figure 8 This is a schematic diagram of an SC connector test provided in an embodiment of this application;

[0036] Figure 9 for Figure 8 A diagram showing the concealed adapter mounting bracket and locking assembly;

[0037] Figure 10 for Figure 9 A diagram showing the APC adapter hidden;

[0038] Figure 11 A schematic diagram of the locking assembly provided in an embodiment of this application;

[0039] Figure 12 for Figure 11 Enlarged view of the area within the dashed box.

[0040] Figure 13 A cross-sectional view of the locking assembly provided in an embodiment of this application;

[0041] Figure 14 This is a schematic diagram of the locking assembly provided in the embodiments of this application locking the tail sleeve;

[0042] Figure 15 A cross-sectional view of the test fixture and the shipping connector provided in the embodiments of this application during assembly;

[0043] Figure 16 This is an exploded view of the adapter mounting base provided in an embodiment of this application.

[0044] In the diagram: 10, adapter mounting base; 100, base; 101, cover plate; 102, fixing groove; 20, adapter assembly; 21, APC adapter; 22, auxiliary housing; 23, auxiliary inner frame sleeve; 230, first limiting opening groove; 30, locking assembly; 31, docking channel; 32, locking mounting base; 320, through-hole channel; 321, first limiting boss; 33, locking block; 330, limiting opening; 331, pushing slope; 34, elastic body; 35, operating lever; 350, second limiting boss; 40, housing; 41, inner frame sleeve; 410, limiting groove; 42, ferrule; 43, tailstock; 44, tail sheath; 440, positioning protrusion; 45, optical cable. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] See Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this application embodiment provides an SC connector test fixture, which includes an adapter mounting base 10, an adapter assembly 20, and a locking assembly 30. The adapter assembly 20 is mounted on the adapter mounting base 10, and the adapter assembly 20 includes an APC adapter 21, an auxiliary housing 22, and an auxiliary inner frame 23. The auxiliary housing 22 is mounted inside the APC adapter 21, and the auxiliary inner frame 23 is mounted inside the auxiliary housing 22. The auxiliary inner frame 23 has a first limiting opening groove 230 on one end along its axial direction for mating with a positioning protrusion 440 on a tail sleeve 44. The locking assembly 30 is mounted on the adapter mounting base 10 and is used to lock or release the tail sleeve 44. The locking assembly 30 includes a mating channel 31 that communicates with the auxiliary inner frame 23 and allows the tail sleeve 44 to pass through.

[0047] Combination Figure 8 , Figure 9 and Figure 10 As shown in the embodiment of this application, the test fixture has an APC adapter 21 installed on the adapter mounting base 10, and an auxiliary shell 22 and an auxiliary inner frame 23 are provided inside it. During testing, it is only necessary to insert the shipment state connector into the adapter assembly 20, and limit the positioning by the first limiting opening groove 230 on the auxiliary inner frame 23 and the positioning protrusion 440 on the tail sleeve 44 on the shipment state connector. Then, the tail sleeve 44 is locked by the locking assembly 30 to fix the shipment state connector. Then, the test line is inserted into the APC adapter 21 from the other side to perform the test.

[0048] This application essentially utilizes the first limiting opening groove 230 of the auxiliary inner frame sleeve 23 to cooperate with the locking component 30, which serves as the upper limiting groove 410 of the inner frame sleeve 41, thereby fixing the connector in the shipping state. Meanwhile, the auxiliary outer shell 22 serves as the outer shell 40, thereby fixing it to the APC adapter 21.

[0049] Compared to the prior art which uses the SC / APC connector as the test line, the test line in this application is the shipped connector. It does not require the inner frame 41, outer shell 40 and SC connector to be assembled before testing. The shipped connector can be tested directly using the SC connector test fixture. Therefore, the assembly process before testing and the disassembly process after testing are reduced, and the production efficiency is improved.

[0050] To cooperate with the first limiting opening slot 230 and to fix the tail sleeve 44, see [reference needed]. Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 As shown, the locking assembly 30 includes a locking mounting base 32, two locking blocks 33, and a driving member. The locking mounting base 32 has an installation chamber inside, and the docking channel 31 is located on the locking mounting base 32 and passes through the installation chamber. The two locking blocks 33 are located in the installation chamber, and the movement path of the locking blocks 33 is perpendicular to the axial direction of the docking channel 31. The driving member is located on the locking mounting base 32 and is used to drive the locking blocks 33 to move in order to lock or release the tail sleeve 44.

[0051] The driving mechanism is used to move the two locking blocks 33 closer together or further apart.

[0052] It is understandable that the opposing walls of the two locking blocks 33 can be configured as an arc shape to match the tail sleeve 44.

[0053] The driving member can be connected to one of the locking blocks 33 to drive the locking block 33 toward the other locking block 33 to lock, or away from the other locking block 33 to release. Alternatively, the driving member can be connected to two locking blocks 33 to synchronously drive the two locking blocks 33 toward each other to lock, or away from each other to release.

[0054] It is understandable that the aforementioned driving components can be common driving devices such as motors, cylinders, and ball screw pairs, and the locking or unlocking purpose can be achieved through appropriate layout.

[0055] The driving methods of the aforementioned driving components tend to be manual solutions.

[0056] As an example, this application also provides a manual solution. Specifically, the driving component includes an elastic body 34 and an operating lever 35. The elastic body 34 is disposed in the mounting cavity and located between the inner wall of the locking mounting seat 32 and the locking block 33. Each locking block 33 is provided with an elastic body 34 between it and the inner wall of the locking mounting seat 32 on its side. The elastic body 34 can be a spring, a known elastic polymer material, etc.

[0057] The operating lever 35 passes through the locking mounting base 32. The movement path of the end of the operating lever 35 passes through the mounting chamber, so that the operating lever 35 has a first position and a second position on the locking mounting base 32. When the operating lever 35 is driven to move towards the mounting chamber and enter the mounting chamber, so that the operating lever 35 moves to the first position, the operating lever 35 is inserted between the two locking blocks 33. At this time, the elastic body 34 is compressed. Since the operating lever 35 is between the two locking blocks 33, there is a gap between the two locking blocks 33, thereby loosening the tail sleeve 44. When the operating lever 35 is driven away from the mounting chamber and exits the mounting chamber, so that the operating lever 35 moves to the second position, the operating lever 35 exits between the two locking blocks 33, and the elastic body 34 drives the locking blocks 33 to move closer to each other, thereby locking the tail sleeve 44.

[0058] Using this manual method, simply driving the operating lever 35 is enough to lock or loosen the tail sleeve 44, completing the insertion operation of the connector in the pre-test shipping state and the removal operation of the connector in the post-test shipping state.

[0059] It is understood that the operating lever 35 can be inserted into the locking mounting base 32 and operated directly by pressing or pulling.

[0060] It is understood that the operating lever 35 can be screwed onto the locking mounting base 32 and operated directly by screwing.

[0061] To better limit the tail sheath 44 and prevent it from moving axially and radially along the optical cable 45 during testing, thus affecting the test results, see [reference needed]. Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 As shown, the end of the locking block 33 opposite to the other locking block 33 is the locking end. A limiting opening 330 is provided on one end of the locking end along the axial direction of the docking channel 31. The limiting openings 330 on the two locking blocks 33 are connected to form a second limiting opening groove. The second limiting opening groove and the first limiting opening groove 230 are configured together as a positioning protrusion 440 on the docking tail sleeve 44 to lock the tail sleeve 44.

[0062] In this example, a limiting opening 330 is provided. Two limiting openings 330 constitute a second limiting opening groove. The second limiting opening groove and the first limiting opening groove 230 together serve as the limiting groove 410 on the inner frame sleeve 41. When the connector in the shipping state is inserted into the test fixture, the first limiting opening groove 230 can limit the positioning protrusion 440 on the tail sleeve 44 along the axial direction of the tail sleeve 44 to prevent the connector in the shipping state from being inserted too deeply. The second limiting opening groove can limit the positioning protrusion 440 on the tail sleeve 44 along the axial direction of the tail sleeve 44 to prevent the connector in the shipping state from being pulled out of the test fixture during testing. At the same time, the first limiting opening groove 230 and the second limiting opening groove can limit the positioning protrusion 440 along the circumference of the tail sleeve 44 to prevent the connector in the shipping state from rotating around its own axis during testing.

[0063] When the operating lever 35 moves to the second position, the elastic body 34 can be in a compressed state or in a naturally elongated state.

[0064] When the operating lever 35 moves to the second position, the elastic body 34 is in a naturally extended state. At this time, although the two locking blocks 33 are not directly clamped to the tail sleeve 44, the tail sleeve 44 can be locked due to the presence of the second limiting opening groove and the first limiting opening groove 230.

[0065] When the operating lever 35 moves to the second position, the elastic body 34 is in a compressed state. At this time, the two locking blocks 33 are clamped on the tail sleeve 44. Under the joint locking of the second limiting opening groove and the first limiting opening groove 230, the locking effect can be further enhanced.

[0066] See Figure 12 and Figure 13 As shown, the locking block 33 is also provided with a push-in inclined surface 331 for the operating rod 35 to abut against in order to drive the locking block 33 to move.

[0067] By setting the push-up ramp 331, the downward driving force of the operating lever 35 can be converted into a horizontal driving force, making it easier to drive the two locking blocks 33 away from each other and optimizing the user experience.

[0068] To prevent the operating lever 35 from being inserted too deeply and causing damage to the surface of the tail sleeve 44, see [reference needed]. Figure 13 As shown, the locking mounting base 32 is provided with a through channel 320, and a first limiting boss 321 is provided in the through channel 320. The operating rod 35 is provided with a second limiting boss 350. The operating rod 35 passes through the through channel 320. When the operating rod 35 moves to the first position, the first limiting boss 321 abuts against the second limiting boss 350, and the end of the operating rod 35 is located outside the docking channel 31.

[0069] On a plane perpendicular to the movement path of the operating lever 35, the projections of the first limiting boss 321 and the second limiting boss 350 partially overlap, so that when the operating lever 35 moves to the first position, the second limiting boss 350 abuts against the first limiting boss 321, and the first limiting boss 321 prevents the second limiting boss 350 from continuing to insert, thereby preventing the operating lever 35 from being inserted too deeply and causing damage to the surface of the tail sleeve 44.

[0070] See Figure 16 As shown, the adapter mounting base 10 includes a base 100 and a cover plate 101. The base 100 is provided with a fixing groove 102, which is cross-shaped. The adapter assembly 20 is installed in the fixing groove 102, and the cover plate 101 covers the base 100.

[0071] The adapter mounting base 10 mainly consists of a base 100 and a cover plate 101. The two can be easily assembled using screws and bolts. The adapter assembly can also be replaced by disassembling the screws and bolts according to actual testing needs.

[0072] Understandably, the SC connector test fixture of this application can successfully test SC connectors. Combined with... Figure 9 and Figure 10 As can be seen, the test fixture includes an APC adapter 21, which can directly use the existing APC adapter 21 in the SC / APC connector. In addition, the auxiliary housing 22 and auxiliary inner frame 23 in the test fixture can directly use the existing housing 40 and inner frame 41 in the SC / APC connector. In fact, in order to miniaturize the test fixture, reduce the space occupied, and facilitate carrying, this application has modified the size of the existing housing 40 and inner frame 41 in the SC / APC connector. Specifically, the length of the housing 40 and inner frame 41 is shortened to obtain the auxiliary housing 22 and auxiliary inner frame 23, so that the auxiliary housing 22 and auxiliary inner frame 23 can be hidden inside the adapter mounting base 10.

[0073] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0074] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A test fixture for SC connectors, characterized in that, It includes: Adapter mounting base (10); An adapter assembly (20) is mounted on the adapter mounting base (10). The adapter assembly (20) includes an APC adapter (21), an auxiliary housing (22), and an auxiliary inner frame (23). The auxiliary housing (22) is mounted inside the APC adapter (21), and the auxiliary inner frame (23) is mounted inside the auxiliary housing (22). The auxiliary inner frame (23) has a first limiting opening groove (230) on one end along its axial direction for docking with a positioning protrusion (440) on the tail sleeve (44). A locking assembly (30), which is mounted on the adapter mounting base (10) and is used to lock or release the tail sleeve (44), the locking assembly (30) including a mating channel (31) communicating with the auxiliary inner frame sleeve (23) and for the tail sleeve (44) to pass through.

2. The SC connector test fixture as described in claim 1, characterized in that, The locking assembly (30) includes: The locking mounting base (32) has an installation chamber inside, and the docking channel (31) is located on the locking mounting base (32) and extends through the installation chamber; Two locking blocks (33) are located within the mounting cavity; A drive element, which is disposed on the locking mounting base (32), is used to drive the locking block (33) to move in order to lock or release the tail sleeve (44).

3. The SC connector test fixture as described in claim 2, characterized in that, The driving component includes: An elastomer (34) is disposed in the mounting cavity and located between the inner wall of the locking mounting base (32) and the locking block (33); An operating lever (35) is inserted through the locking mounting base (32). When the operating lever (35) moves to the first position, it is inserted between the two locking blocks (33) to loosen the tail sleeve (44). When the operating lever (35) moves to the second position, it exits between the two locking blocks (33), and the elastic body (34) drives the locking blocks (33) to lock the tail sleeve (44).

4. The SC connector test fixture as described in claim 3, characterized in that: When the operating lever (35) moves to the second position, the elastic body (34) is in a compressed state.

5. The SC connector test fixture as described in claim 3 or 4, characterized in that: The locking end of the locking block (33) opposite to the other locking block (33) is the locking end. A limit opening (330) is provided on one end of the locking end along the axial direction of the docking channel (31). The limit openings (330) on the two locking blocks (33) are docked to form a second limit opening groove. The second limiting opening groove and the first limiting opening groove (230) are configured together to dock with the positioning protrusion (440) on the tail sleeve (44) to lock the tail sleeve (44).

6. The SC connector test fixture as described in claim 5, characterized in that: The locking block (33) is also provided with a push-in inclined surface (331) for the operating rod (35) to abut against in order to drive the locking block (33) to move.

7. The SC connector test fixture as described in claim 3, characterized in that: The operating lever (35) is inserted into the locking mounting base (32).

8. The SC connector test fixture as described in claim 3, characterized in that: The operating lever (35) is screwed onto the locking mounting base (32).

9. The SC connector test fixture as described in claim 3, characterized in that: The locking mounting base (32) is provided with a through channel (320), and a first limiting boss (321) is provided in the through channel (320). The operating rod (35) is provided with a second limiting boss (350). The operating rod (35) passes through the through channel (320). When the operating rod (35) moves to the first position, the first limiting boss (321) abuts against the second limiting boss (350). The end of the operating rod (35) is located outside the docking channel (31).

10. The SC connector test fixture as described in claim 1, characterized in that: The adapter mounting base (10) includes a base (100) and a cover plate (101). The base (100) is provided with a fixing groove (102). The adapter assembly (20) is installed in the fixing groove (102). The cover plate (101) covers the base (100).

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