A wavelength tunable optical time domain reflectometer
By designing a wavelength-tunable optical time domain reflector, using a combined structure of the shell and wrist sleeve, the existing equipment is solved by large size and difficult to hold stably, and the safe and stable use and efficient detection of the equipment are achieved.
Patent Information
- Application Number
- CN202421496441.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing optical time domain reflectors are large in size and are difficult to hold stably with one hand, which increases the risk of equipment drop and damage, while holding with both hands will reduce detection efficiency.
A wavelength-tunable optical time domain reflector is designed, adopting a combined structure of the shell and wrist sleeve. Through the coordination of guide rod, moving plate, fixed belt, fixed column, fixed plate and wrist sleeve, the double fixation between the user's hands and the equipment is achieved, enhancing the stability and safety of the equipment.
It effectively avoids accidental fall of the optical time domain reflector during use, reduces the risk of equipment damage, and improves the user's operation convenience and safety.
Smart Images
Figure CN222706508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber testing, in particular to a wavelength tunable optical time domain reflectometer. Background Art
[0002] When light is transmitted in an optical fiber, the optical fiber is affected by external disturbances, temperature, strain, displacement and other environmental factors, and the polarization state, power, wavelength, phase and other parameters of the optical signal will change. Fiber optic testing technology is to obtain information about changes in the surrounding environment by detecting these parameters of light in the optical fiber. The optical time domain reflectometer (OTDR) is the main instrument in the field of fiber optic testing technology. It is widely used in the maintenance and construction of optical cable lines. It can measure the length of optical fiber, transmission attenuation of optical fiber, joint attenuation and fault location. With the advancement of technology, the market Some optical time domain reflectometers can be adjusted to test different wavelengths, thereby improving the practicality of the optical time domain reflectometer. However, the overall volume of the existing optical time domain reflectometer is relatively large, which makes it difficult for users to hold it stably with one hand, resulting in the possibility of accidental drop of the optical time domain reflectometer, which in turn increases the possibility of damage to the optical time domain reflectometer. Holding it with both hands will reduce the detection efficiency of the optical fiber. At the same time, although some optical time domain reflectometers are provided with hanging straps, users are still required to actively hold the hanging strap and the optical time domain reflectometer, so that the anti-drop effect of the optical time domain reflectometer needs to be enhanced. Utility Model Content
[0003] In order to overcome the defects of the prior art, a wavelength tunable optical time domain reflectometer is provided to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, a wavelength tunable optical time domain reflectometer is provided, comprising: a shell and a wristband, wherein a reflectometer body is fixedly connected in the shell, a buffer groove and a main slide groove are respectively provided on the back of the shell, and a main slide groove is slidably connected in the main slide groove, and a mounting plate is slidably connected to the back of the shell through the main slide groove, and an auxiliary belt is fixedly connected to the surface of the mounting plate, and a friction layer is correspondingly connected to the position of the back of the shell near the main slide groove, and a guide rod is symmetrically connected in the buffer groove, and a movable plate is slidably connected in the buffer groove through the guide rod, the outer side of the wristband is fixedly connected to a shaping plate, the shaping plate is movably connected to a fixing belt through a fixing column, and one end of the fixing belt away from the fixing column is fixedly connected to the movable plate, and the two ends of the wristband are fixedly connected by Velcro, and the inner side of the wristband is fixedly connected to the buffer layer.
[0005] Preferably, the main slide groove opened on the back of the shell is in a long strip structure, the cross-section of the main slide groove is in a convex structure, and the width of the main slide groove is adapted to the width of the main slide plate, and the length of the main slide groove is greater than the length of the main slide plate.
[0006] Preferably, the buffer groove opened on the back of the shell has a convex structure, the opening of the buffer groove is connected to the side of the shell, and four groups of guide rods are fixedly connected on both sides of the buffer groove. At the same time, the four groups of guide rods are all cylindrical structures, and the surfaces of the guide rods are sleeved with springs.
[0007] Preferably, the movable plate is in an elongated strip structure, the sizes of the movable plate and the buffer slot are matched, and guide holes are provided at both ends of the movable plate corresponding to the positions of the guide rods, and one end of the spring abuts against the surface of the movable plate.
[0008] Preferably, the fixing belt is in the shape of an elongated strip, the size of the fixing belt and the opening of the buffer groove are matched, and one end of the fixing belt close to the fixing column is fixedly connected to the fixing ring, the fixing ring is in the shape of a cylinder, and the fixing ring is sleeved on the surface of the fixing column.
[0009] Preferably, the shaping plate has a rectangular structure, and the surface of the wristband to which the shaping plate is fixedly connected has a plurality of ventilation grooves arranged at equal intervals in parallel along the length direction, the ventilation grooves run through both sides of the wristband, and the cross-section of the ventilation grooves has a semicircular structure, and at the same time, the buffer layer is fixedly connected to the surface of the wristband, and a plurality of ventilation holes are arranged at equal intervals in parallel with the position of the ventilation grooves relative to the ventilation grooves, and the ventilation holes are connected to the ventilation grooves.
[0010] Preferably, the mounting plate to which the main skateboard is fixedly connected has a rectangular structure, an auxiliary belt is fixedly connected to the surface of the mounting plate, and the cross-section formed by the combination of the main skateboard and the mounting plate has an I-shaped structure, while the friction layer fixedly connected to the back of the shell through a groove has a long strip structure.
[0011] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation of the guide rod, the movable plate, the fixing belt, the fixing column, the shaping plate and the wristband, when the user holds the optical time domain reflectometer, the two can be effectively fixed together; even if the user's hand slips and causes the optical time domain reflectometer to accidentally fall, the setting of the fixing belt and the wristband can ensure that the optical time domain reflectometer is suspended in the air, thereby avoiding the problem that the optical time domain reflectometer is damaged due to falling and impact, and improving the safety of the optical time domain reflectometer when in use; at the same time, through the cooperation of the auxiliary belt, the mounting plate, the movable plate and the friction layer, the stability of the user holding the optical time domain reflectometer can be assisted and enhanced, and the probability of the optical time domain reflectometer accidentally falling off can be reduced, thereby enhancing the overall safety of the optical time domain reflectometer in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a front view schematic diagram of an embodiment of the utility model.
[0013] Figure 2 It is a side view schematic diagram of an embodiment of the utility model.
[0014] Figure 3It is a rear view schematic diagram of an embodiment of the utility model.
[0015] Figure 4 The figure is a top view of a wristband according to an embodiment of the present invention.
[0016] In the figure: 1. Shell; 2. Reflectometer body; 3. Fixing belt; 4. Wrist strap; 5. Velcro; 6. Buffer layer; 7. Ventilation slot; 8. Ventilation hole; 9. Main slide slot; 10. Main slide plate; 11. Mounting plate; 12. Auxiliary belt; 13. Moving plate; 14. Guide rod; 15. Friction layer; 16. Buffer slot; 17. Fixing column; 18. Forming plate. DETAILED DESCRIPTION
[0017] Reference Figures 1 to 4 As shown, the utility model provides a wavelength tunable optical time domain reflectometer, including: a shell 1 and a wristband 4, the shell 1 is fixedly connected to a reflectometer body 2, the back of the shell 1 is respectively provided with a buffer groove 16 and a main slide groove 9, and the main slide groove 9 is slidably connected to a main slide plate 10, and a mounting plate 11 is slidably connected to the back of the shell 1 through the main slide plate 10, the surface of the mounting plate 11 is fixedly connected to an auxiliary belt 12, and a friction layer 15 is correspondingly connected to a position of the back of the shell 1 close to the main slide groove 9, and at the same time, a guide rod 14 is symmetrically connected in the buffer groove 16, and a movable plate 13 is slidably connected in the buffer groove 16 through the guide rod 14, the outer side of the wristband 4 is fixedly connected to a shaping plate 18, the shaping plate 18 is movably connected to a fixing belt 3 through a fixing column 17, and one end of the fixing belt 3 away from the fixing column 17 is fixedly connected to the moving plate 13, and at the same time, both ends of the wristband 4 are fixedly connected through Velcro 5, and the inner side of the wristband 4 is fixedly connected to a buffer layer 6.
[0018] In this embodiment, when the user needs to hold the optical time domain reflectometer, the user first fixes the wristband 4 on the wrist through the Velcro 5, inserts the finger between the auxiliary belt 12 and the mounting plate 11, and bends the finger forcefully so that the finger pulp presses the friction layer 15 and the back of the finger abuts the auxiliary belt 12, thereby completing the double fixation between the user's hand and the optical time domain reflectometer, thereby effectively preventing the optical time domain reflectometer from accidentally falling during use, and the optical time domain reflectometer is fixed to one hand of the user, thereby facilitating the improvement of the flexibility of movement and the convenience of operation of the optical time domain reflectometer. At the same time, when the reflectometer body 2 needs to detect different wavelengths, the pulse width can be adjusted by the built-in PWM control chip of the reflectometer body 2 to equivalently obtain the required waveform, thereby completing the detection of different wavelengths.
[0019] As a preferred embodiment, the main slide groove 9 opened on the back of the shell 1 is a long strip structure, the cross-section of the main slide groove 9 is a convex structure, and the width of the main slide groove 9 is adapted to the width of the main slide plate 10. At the same time, the length of the main slide groove 9 is greater than the length of the main slide plate 10.
[0020] In this embodiment, if Figure 2 and Figure 3 The setting of the main slide groove 9 enables the auxiliary belt 12, the mounting plate 11 and the main slide plate 10 to be adjusted accordingly on the back of the shell 1, thereby ensuring that the user's fingers can be smoothly inserted between the auxiliary belt 12 and the mounting plate 11, thereby improving the user's comfort when holding.
[0021] As a preferred embodiment, the buffer groove 16 opened on the back side of the shell 1 is a convex structure, the opening of the buffer groove 16 is connected to the side of the shell 1, and four groups of guide rods 14 are fixedly connected on both sides of the buffer groove 16. At the same time, the four groups of guide rods 14 are all cylindrical structures, and the surface of the guide rods 14 is sleeved with springs.
[0022] In this embodiment, if Figure 2 and Figure 3 The setting of the guide rod 14 can assist the compression of the spring, avoid accidental bending of the spring during the compression process, and avoid the entanglement problem of adjacent springs. At the same time, it can also provide corresponding buffering for the stretching of the fixing belt 3, thereby reducing the impact force on the shell 1 and the reflectometer body 2.
[0023] As a preferred embodiment, the movable plate 13 is in an elongated strip structure, the sizes of the movable plate 13 and the buffer groove 16 are matched, and guide holes are provided at both ends of the movable plate 13 corresponding to the positions of the guide rod 14, and one end of the spring abuts against the surface of the movable plate 13.
[0024] In this embodiment, if Figure 2 and Figure 3 The setting of the guide hole enables the movable plate 13 to be stably slidably connected in the buffer groove 16 through the guide rod 14, thereby facilitating the fixed belt 3 to drive the movable plate 13 to move, thereby enhancing the stability of the connection between the fixed belt 3 and the shell 1.
[0025] As a preferred embodiment, the fixing belt 3 has a long strip structure, the size of the fixing belt 3 and the opening of the buffer groove 16 are adapted to each other, and one end of the fixing belt 3 close to the fixing column 17 is fixedly connected to the fixing ring, the fixing ring has a cylindrical structure, and the fixing ring is sleeved on the surface of the fixing column 17.
[0026] In this embodiment, if Figure 3 and Figure 4 The inner cavity of the fixing ring and the outer side surface size of the fixing column 17 are adapted to each other, thereby ensuring that the fixing ring and the fixing column 17 can move stably relative to each other, so that the wristband 4 and the shaping plate 18 can rotate at will, improving the comfort of the user when holding.
[0027] As a preferred embodiment, the shaping plate 18 has a rectangular structure, and the surface of the wristband 4 to which the shaping plate 18 is fixedly connected has a plurality of ventilation grooves 7 arranged at equal intervals in parallel along the length direction, the ventilation grooves 7 penetrate through both side surfaces of the wristband 4, and the cross-section of the ventilation grooves 7 has a semicircular structure, and at the same time, the surface of the wristband 4 is fixedly connected to the buffer layer 6, and the surface of the buffer groove 16 has a plurality of ventilation holes 8 arranged at equal intervals in parallel with the position of the ventilation grooves 7, and the ventilation holes 8 are connected to the ventilation grooves 7.
[0028] In this embodiment, if Figure 1 , Figure 3 and Figure 4 The setting of the shaping plate 18 can reduce the probability of deformation of the wristband 4 and can also help improve the wearing efficiency of the wristband 4. At the same time, the buffer layer 6 is made of sponge material, which can improve the comfort of the wristband 4 when wearing. At the same time, the setting of the ventilation grooves 7 and the ventilation holes 8 can improve the air permeability of the wristband 4 after wearing.
[0029] As a preferred embodiment, the mounting plate 11 to which the main skateboard 10 is fixedly connected has a rectangular structure, the auxiliary belt 12 is fixedly connected to the surface of the mounting plate 11, and the cross-section formed by the combination of the main skateboard 10 and the mounting plate 11 has an I-shaped structure. At the same time, the friction layer 15 fixedly connected to the back of the shell 1 through a groove has a long strip structure.
[0030] In this embodiment, if Figure 2 and Figure 3 The friction layer 15 is made of silicone material, which can enhance the friction between the fingertips and the shell 1, thereby enhancing the stability when the user actively holds the device. The setting of the auxiliary belt 12 can cooperate with the user's fingers to assist in enhancing the contact and fixing effect of the fingers on the shell 1.
[0031] The wavelength tunable optical time domain reflectometer of the utility model can enhance the stability of the user holding the wavelength tunable optical time domain reflectometer through the cooperation of the wristband 4, the shaping plate 18, the fixing belt 3, the moving plate 13, the auxiliary belt 12 and the friction layer 15, avoid the problem of accidental dropping, and thus reduce the probability of accidental damage to the wavelength tunable optical time domain reflectometer.
Claims
1. A wavelength tunable optical time domain reflectometer, comprising: The invention relates to a shell (1) and a wristband (4), wherein the shell (1) is fixedly connected to a reflectometer body (2), and is characterized in that: a buffer groove (16) and a main slide groove (9) are respectively provided on the back of the shell (1), and a main slide plate (10) is slidably connected in the main slide groove (9), and a mounting plate (11) is slidably connected to the back of the shell (1) through the main slide plate (10), and the surface of the mounting plate (11) is fixedly connected to an auxiliary belt (12), and a friction layer (15) is correspondingly connected to the position of the back of the shell (1) near the main slide groove (9), and the buffer The guide rod (14) is symmetrically connected in the groove (16), and the movable plate (13) is slidably connected in the buffer groove (16) through the guide rod (14); the outer side of the wristband (4) is fixedly connected to the shaping plate (18), and the shaping plate (18) is movably connected to the fixing belt (3) through the fixing column (17), and the end of the fixing belt (3) away from the fixing column (17) is fixedly connected to the movable plate (13), and at the same time, the two ends of the wristband (4) are fixedly connected by Velcro (5), and the inner side of the wristband (4) is fixedly connected to the buffer layer (6).
2. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The main slide groove (9) opened on the back of the shell (1) is in a long strip structure, the cross section of the main slide groove (9) is in a convex structure, and the width of the main slide groove (9) is compatible with the width of the main slide plate (10), and the length of the main slide groove (9) is greater than the length of the main slide plate (10).
3. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The buffer groove (16) provided on the back of the shell (1) is in a convex shape, the opening of the buffer groove (16) is connected to the side of the shell (1), and the two sides of the buffer groove (16) are fixedly connected to four groups of guide rods (14), and the four groups of guide rods (14) are all in a cylindrical structure, and the surfaces of the guide rods (14) are sleeved with springs.
4. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The movable plate (13) is in the form of an elongated strip, the sizes of the movable plate (13) and the buffer groove (16) are matched, and guide holes are provided at the two ends of the movable plate (13) corresponding to the positions of the guide rod (14), and one end of the spring abuts against the surface of the movable plate (13).
5. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The fixing belt (3) is in the form of an elongated strip, the sizes of the fixing belt (3) and the opening of the buffer groove (16) are matched, and one end of the fixing belt (3) close to the fixing column (17) is fixedly connected to a fixing ring, the fixing ring is in the form of a cylindrical structure, and the fixing ring is sleeved on the surface of the fixing column (17).
6. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The shaping plate (18) is in a rectangular structure. The surface of the wristband (4) to which the shaping plate (18) is fixedly connected is provided with a plurality of groups of ventilation grooves (7) in parallel and at equal intervals along the length direction. The ventilation grooves (7) penetrate the two side surfaces of the wristband (4), and the cross section of the ventilation grooves (7) is in a semicircular structure. At the same time, the surface of the wristband (4) is fixedly connected to the buffer layer (6), and the surface of the buffer groove (16) is provided with a plurality of groups of ventilation holes (8) in parallel and at equal intervals relative to the position of the ventilation grooves (7), and the ventilation holes (8) are connected to the ventilation grooves (7).
7. The wavelength tunable optical time domain reflectometer according to claim 1, characterized in that: The mounting plate (11) to which the main slide plate (10) is fixedly connected has a rectangular structure, the auxiliary belt (12) is fixedly connected to the surface of the mounting plate (11), and the cross-section formed by the main slide plate (10) and the mounting plate (11) combined together has an I-shaped structure, while the friction layer (15) fixedly connected to the back of the housing (1) via a groove has a long strip structure.