Detachable optical fiber output head of OTDR (Optical Time Domain Reflectometer)

Abstract

The utility model relates to the technical field of OTDR, and discloses an OTDR detachable optical fiber output head, which comprises a tester, an optical fiber body and an output head body, the top end of the tester is provided with an installation port, the installation port is internally provided with an empty slot, the output head body is installed in the installation port, the end part of the optical fiber body is installed in the output head part, and the tester is provided with a display screen. Through the clamping design of the clamping block and the clamping groove, the stable connection of the output head body and the tester is ensured, the looseness is avoided, through the design of the control rod, the dismounting process is simple and rapid, no complex tool is needed, through the clamping design of the mounting block, the dismounting process is simplified, the operation efficiency is improved, and through the arrangement of the elastic ring and the spring, the dismounting efficiency is improved. Therefore, the mechanical impact on the optical fiber output head in the dismounting process is reduced, the service life of equipment is prolonged, the stability of the dismounting process is ensured through the design of the control groove and the ring groove, and the optical fiber is prevented from being broken or damaged.

Description

Technical Field

[0001] This utility model relates to the field of OTDR technology, specifically to a detachable fiber optic output head for OTDR. Background Technology

[0002] An OTDR (Optical Time Domain Reflectometer) is a precision instrument used to test and analyze the performance of optical fiber cables. It determines parameters such as fiber length, loss, splice loss, and reflection events (e.g., breaks or poor connections) by emitting light pulses into the optical fiber and measuring the reflected light signals.

[0003] The fiber optic output connector of an OTDR is a key component connecting the OTDR device to the fiber optic cable under test. It is typically an optical interface used to transmit the OTDR's optical signal into the fiber optic cable under test and to receive the signal reflected back from the fiber optic cable.

[0004] The existing fiber optic output head is disassembled by unscrewing it counterclockwise until the connector is completely loose, and then gently pulling it out. However, during manual disassembly and installation, the connector may not be fully locked or may be loose, which may lead to unstable connection, causing fluctuations or interruptions in the optical signal and affecting the reliability of test results. Therefore, it does not meet the existing requirements. To address this, we propose a detachable fiber optic output head for OTDRs. Utility Model Content

[0005] This invention provides a detachable fiber optic output head for OTDRs, which simplifies the disassembly and assembly process, improves operational efficiency, and enhances the stability of the disassembly process. It solves the problem mentioned in the background art that during manual disassembly and installation, the connector may not be fully locked or may be loose, which may lead to unstable connection, resulting in fluctuations or interruptions in the optical signal and affecting the reliability of test results.

[0006] This utility model provides the following technical solution: a detachable fiber optic output head for an OTDR, comprising a tester, a fiber optic body, and an output head body. The tester has an installation port at its top, with a slot inside the installation port. The output head body is installed inside the installation port, and the end of the fiber optic body is installed inside the output head body. The tester has a display screen and a control button located at the bottom of the display screen. A retaining ring is installed inside the installation port and sleeved on the outside of the output head body. A disassembly / reassembly assembly is provided between the retaining ring and the output head body.

[0007] As an optional solution for a detachable fiber optic output head of an OTDR according to this utility model, the disassembly and assembly assembly includes a mounting block installed at the bottom of the output head body, a mounting slot corresponding to the mounting block is provided on the tester, the mounting block engages with the mounting slot, a groove is provided on the outside of the output head body, a locking block is movably hinged to the groove, and a locking groove corresponding to the locking block is provided in the fixing ring, the locking block engages with the locking groove.

[0008] As an optional solution for the detachable fiber optic output head of the OTDR described in this utility model, an elastic ring is installed in the groove. The elastic ring is set as a rubber ring. One side of the elastic ring is glued to the side of the card block, and the other side of the elastic ring is glued to the inner wall of the groove.

[0009] As an optional solution for the detachable fiber optic output head of the OTDR described in this utility model, the fixing ring and the mounting port are provided with a control groove, the control groove is connected to the card slot, a control rod for controlling the card block reset is installed in the control groove, and the control rod contacts the card block through the control groove.

[0010] As an optional solution for the detachable fiber optic output head of the OTDR described in this utility model, the mounting port is provided with an annular groove, the annular groove is connected to the control groove, a spring is installed in the control groove, the spring is sleeved on the outside of the control rod, one end of the spring is connected to the inner wall of the annular groove, and the other end of the spring is fixedly sleeved on the outside of the control rod.

[0011] As an optional solution for the detachable fiber optic output head of the OTDR described in this utility model, a control membrane for controlling the control rod is installed outside the mounting port. The control membrane is located outside the control slot and contacts the end of the control rod away from the locking block.

[0012] As an optional solution for the detachable fiber optic output head of the OTDR described in this utility model, the control film is set as a hemispherical film or a rubber film.

[0013] As an optional solution for a detachable fiber optic output head of an OTDR according to this utility model, a damping ring for buffering is installed between the fixing ring and the output head body, and the damping ring is set as a rubber ring.

[0014] This utility model has the following beneficial effects:

[0015] 1. This OTDR features a detachable fiber optic output head. The locking design of the locking block and slot ensures a secure connection between the output head and the tester, preventing loosening. The control lever design makes disassembly simple and quick, requiring no complex tools. The locking design of the mounting block simplifies the assembly and disassembly process, improving operational efficiency. The use of elastic rings and springs reduces mechanical impact on the fiber optic output head during disassembly, extending the equipment's lifespan. The control slot and ring slot design ensures a smooth disassembly process, preventing fiber breakage or damage.

[0016] 2. This OTDR features a detachable fiber optic output head. The control membrane design makes the operation of the control lever more convenient and intuitive. Users can control the movement of the card block by pressing the control membrane, without having to directly operate the control lever. The hemispherical rubber control membrane design provides good tactile feedback and operation, making the user's operation more comfortable and relaxed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0019] Figure 3 For the present utility model Figure 2 A magnified structural diagram at point A in the diagram.

[0020] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point B in the diagram.

[0021] In the diagram: 110, Tester; 111, Fiber optic cable body; 112, Output head body; 113, Mounting port; 114, Empty slot; 115, Display screen; 116, Control button; 117, Fixing ring; 120, Assembly / Disassembly assembly; 121, Mounting block; 122, Mounting slot; 123, Groove; 124, Locking block; 125, Locking slot; 126, Elastic ring; 127, Control slot; 128, Control rod; 130, Ring groove; 131, Spring; 132, Control diaphragm; 133, Damping ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: This example aims to address the issue that during manual disassembly and installation, the connector may not be fully locked or may be loose, potentially leading to unstable connections that cause fluctuations or interruptions in the optical signal, thus affecting the reliability of test results. Please refer to [link to example]. Figure 1 - Figure 4 A detachable fiber optic output head for an OTDR includes a tester 110, a fiber optic body 111, and an output head body 112. The tester 110 has an installation port 113 at its top, and a slot 114 is formed inside the installation port 113. The output head body 112 is installed inside the installation port 113, and the end of the fiber optic body 111 is installed inside the output head. The tester 110 has a display screen 115 and a control button 116, which is located at the bottom of the display screen 115. A retaining ring 117 is installed inside the installation port 113 and is sleeved on the outside of the output head body 112. A disassembly and assembly assembly 120 is provided between the retaining ring 117 and the output head body 112.

[0024] The assembly / disassembly component 120 includes a mounting block 121 installed at the bottom of the output head body 112. The tester 110 has a mounting groove 122 corresponding to the mounting block 121, which engages with the mounting groove 122. A groove 123 is formed on the outside of the output head body 112, and a locking block 124 is movably hinged to the groove 123. A locking groove 125 corresponding to the locking block 124 is formed inside the fixing ring 117, and the locking block 124 engages with the locking groove 125. An elastic ring 126 is installed inside the groove 123. The elastic ring 126 is a rubber ring, with one side of the elastic ring 126 bonded to the side of the locking block 124 and the other side of the elastic ring 126 bonded to the inner wall of the groove 123.

[0025] A control groove 127 is formed through the fixing ring 117 and the mounting port 113. The control groove 127 communicates with the slot 125. A control rod 128 for resetting the locking block 124 is installed in the control groove 127. The control rod 128 contacts the locking block 124 through the control groove 127. An annular groove 130 is formed in the mounting port 113. The annular groove 130 communicates with the control groove 127. A spring 131 is installed in the control groove 127. The spring 131 is sleeved on the outside of the control rod 128. One end of the spring 131 is connected to the inner wall of the annular groove 130, and the other end of the spring 131 is fixedly sleeved on the outside of the control rod 128.

[0026] Ensure the end face of the fiber optic output head is clean and free of dust or oil. Check the mounting port 113 and retaining ring 117 of the tester 110 for integrity and ensure they are undamaged. Align the output head body 112 with the mounting port 113 of the tester 110 and gently push it in. The mounting block 121 at the bottom of the output head body 112 will automatically engage with the mounting groove 122, ensuring initial fixation. When the output head body 112 is fully pushed in, the locking block 124 in the groove 123 will pop outward under the action of the elastic ring 126 and engage with the locking slot 125 in the retaining ring 117. The engagement of the locking block 124 and the locking slot 125 ensures a secure connection of the output head body 112 and prevents loosening. Confirm that the locking block 124 is fully engaged in the locking slot 125, ensuring a secure connection between the output head body 112 and the tester 110. Check whether the end face of the fiber optic body 111 is aligned with the optical interface of the tester 110 to ensure normal optical signal transmission.

[0027] Ensure the tester 110 is switched off to avoid damage to the equipment or fiber optic cable during disassembly. Press the control lever 128 via the control slot 127. The control lever 128 will push the locking block 124 inward, disengaging it from the slot 125. The spring 131 will compress, providing a restoring force for the control lever 128. Once the locking block 124 is disengaged from the slot 125, gently pull out the output head body 112. The mounting block 121 will disengage from the mounting slot 122, completing the disassembly. After releasing the control lever 128, the spring 131 will push the control lever 128 back to its original position, and the locking block 124 will return to its original position under the action of the elastic ring 126, ready for the next installation. After disassembly, immediately cover the end face of the fiber optic output head with the protective cover to prevent dust or contaminants from entering.

[0028] In this embodiment: the locking design of the locking block 124 and the locking slot 125 ensures a stable connection between the output head body 112 and the tester 110, preventing loosening; the design of the control rod 128 makes the disassembly process simple and quick, requiring no complicated tools; the locking design of the mounting block 121 simplifies the disassembly and assembly process and improves operational efficiency; the setting of the elastic ring 126 and the spring 131 reduces the mechanical impact on the fiber optic output head during disassembly, extending the equipment life; and the design of the control slot 127 and the ring slot 130 ensures the stability of the disassembly process, preventing fiber breakage or damage.

[0029] Example 2 aims to address the problem of difficulty in manipulating the control lever 128. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1 - Figure 4A control diaphragm 132 for controlling the control lever 128 is installed outside the mounting port 113. The control diaphragm 132 is located outside the control groove 127 and contacts the end of the control lever 128 away from the locking block 124. The control diaphragm 132 is a hemispherical diaphragm and is made of rubber. A damping ring 133 for buffering is installed between the fixing ring 117 and the output head body 112. The damping ring 133 is made of rubber.

[0030] The design of the damping ring 133 provides additional buffer protection, reducing mechanical impact on the fiber optic output head and retaining ring 117 during installation and disassembly, thus extending the service life of the equipment. The damping ring 133 increases the friction between the retaining ring 117 and the output head body 112, further ensuring the stability of the connection and reducing the risk of loosening.

[0031] In this embodiment, the control membrane 132 makes the operation of the control lever 128 more convenient and intuitive. Users can control the movement of the card block 124 by pressing the control membrane 132 without directly operating the control lever 128. The hemispherical rubber control membrane 132 provides good tactile feedback and operation, making the operation more comfortable and easy for users.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A detachable fiber optic output head for an OTDR, comprising a tester (110), a fiber optic body (111), and an output head body (112), characterized in that: The tester (110) has an installation port (113) at its top, and a slot (114) is provided in the installation port (113). The output head body (112) is installed in the installation port (113), and the end of the optical fiber body (111) is installed in the output head. The tester (110) has a display screen (115) and a control button (116) on it. The control button (116) is located on the bottom side of the display screen (115). A fixing ring (117) is installed in the installation port (113). The fixing ring (117) is sleeved on the outside of the output head body (112). A disassembly assembly (120) is provided between the fixing ring (117) and the output head body (112).

2. The detachable fiber optic output head for an OTDR according to claim 1, characterized in that: The disassembly and assembly assembly (120) includes a mounting block (121) installed at the bottom of the output head body (112). The tester (110) has a mounting groove (122) corresponding to the mounting block (121). The mounting block (121) engages with the mounting groove (122). The output head body (112) has a groove (123) on its outside. The groove (123) is movably hinged with a locking block (124). The fixing ring (117) has a locking groove (125) corresponding to the locking block (124). The locking block (124) engages with the locking groove (125).

3. The detachable fiber optic output head for an OTDR according to claim 2, characterized in that: An elastic ring (126) is installed in the groove (123). The elastic ring (126) is a rubber ring. One side of the elastic ring (126) is glued to the side of the card block (124), and the other side of the elastic ring (126) is glued to the inner wall of the groove (123).

4. The detachable fiber optic output head for an OTDR according to claim 2, characterized in that: The fixing ring (117) and the mounting port (113) are provided with a control groove (127), which is connected to the card slot (125). A control rod (128) for controlling the reset of the card block (124) is installed in the control groove (127), and the control rod (128) contacts the card block (124) through the control groove (127).

5. The detachable fiber optic output head for an OTDR according to claim 4, characterized in that: An annular groove (130) is provided in the mounting port (113), the annular groove (130) is connected to the control groove (127), a spring (131) is installed in the control groove (127), the spring (131) is sleeved on the outside of the control rod (128), one end of the spring (131) is connected to the inner wall of the annular groove (130), and the other end of the spring (131) is fixedly sleeved on the outside of the control rod (128).

6. The detachable fiber optic output head for an OTDR according to claim 4, characterized in that: A control membrane (132) for controlling the control rod (128) is installed outside the mounting port (113). The control membrane (132) is located outside the control groove (127) and is in contact with the end of the control rod (128) away from the locking block (124).

7. The detachable fiber optic output head for an OTDR according to claim 6, characterized in that: The control membrane (132) is configured as a hemispherical membrane, and the control membrane (132) is configured as a rubber membrane.

8. The detachable fiber optic output head for an OTDR according to claim 1, characterized in that: A damping ring (133) for buffering is installed between the fixing ring (117) and the output head body (112), and the damping ring (133) is a rubber ring.

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