Insertion loss test fixture with protection structure

Abstract

The utility model relates to the technical field of insertion loss testing, in particular to an insertion loss testing clamp with a protection structure, which comprises a machine body, a transmission case is fixedly connected to the rear side of the machine body, a sliding frame is arranged on the front side in the machine body, and a first fixing seat is fixedly connected to the top of the sliding frame. A fixing frame is fixedly connected to the rear side of the interior of the machine body, a second fixing seat is arranged above the fixing frame, a control table is fixedly connected to the middle of the front side of the machine body, an inserting mechanism is arranged in the transmission box, and a buffering mechanism is arranged below the fixing frame. According to the utility model, automatic plugging and stress buffering of a plurality of groups of plugging heads are realized, and the IDE protection and simplification of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insertion loss testing, in particular to an insertion loss testing fixture with a protective structure. Background Art

[0002] The principle of fiber optic insertion loss test is to use a light source to emit a light signal of a certain power. After the optical fiber under test is connected, the output power is measured by an optical power meter. The insertion loss of the optical fiber connection is determined by calculating the difference between the two. When performing insertion loss test, it is generally necessary to fix the plug connector with a fixture for docking operation.

[0003] The existing device mainly drives the fixed seat and the plug connector to dock through a pushing mechanism. The existing technology is similar to an anti-collision plug-in loss test fixture. The structure with patent number N210075238U includes a test base plate, one end of the test base plate is provided with a fixed test unit, and the other end of the test base plate is provided with a mobile test unit; the mobile test unit includes a pressure sensor, a first sliding assembly, a second sliding assembly, a sliding table and an optical fiber fixing plate, the optical fiber fixing plate is arranged on the second sliding assembly, the second sliding assembly is arranged on the sliding table, the sliding table is arranged on the first sliding assembly, and the first sliding assembly is arranged on the test base plate; a mounting plate is arranged on the end of the optical fiber fixing plate away from the fixed test unit. The utility model can effectively avoid the undesirable phenomenon of flower measurement, but the device still has areas that can be optimized.

[0004] The existing devices mainly use the cooperation of pressure sensors and pushing mechanisms to accurately dock the plug connectors, so that some devices require multiple sets of pushing mechanisms to push the plug connectors, which makes the structures of some devices more complicated. At the same time, some devices find it difficult to buffer the rigid force of the plug connectors through springs, which makes some plug connectors easily damaged by force, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problems, an insertion loss test fixture with a protective structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an insertion loss test fixture with a protective structure to solve the problem that the existing devices in the prior art mentioned in the above background technology mainly use the cooperation of pressure sensors and pushing mechanisms to accurately connect the plug connectors, so that some devices require multiple groups of pushing mechanisms to push the plug connectors, which leads to the structure of some devices being more complicated. At the same time, some devices find it difficult to buffer the rigid force of the plug connector by springs, which leads to the problem that some plug connectors are easily damaged by force.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insertion loss test fixture with a protective structure, comprising a body, a transmission box is fixedly connected to the rear side of the body, a sliding frame is provided on the front side of the body, a first fixing seat is fixedly connected to the top of the sliding frame, a fixing frame is fixedly connected to the rear side of the body, a second fixing seat is provided above the fixing frame, and a console is fixedly connected to the middle part of the front side of the body;

[0007] A plug-in mechanism is provided inside the transmission box, and the plug-in mechanism includes a motor. The front side of the motor is fixedly connected to the middle part of the rear side of the transmission box. A buffer mechanism is provided below the fixed frame, and the buffer mechanism includes a buffer frame. The upper inner wall of the buffer frame is slidably connected to the top of the fixed frame, and the bottom of the second fixed seat is fixedly connected to the top of the buffer frame.

[0008] Preferably, a transmission shaft is fixedly connected to the middle portion of the front side of the motor, and a first bevel gear is fixedly connected to the front end of the transmission shaft.

[0009] Preferably, the front side of the first bevel gear is meshingly connected with the second bevel gear, the inner wall of the second bevel gear is fixedly connected with a transmission worm, and both ends of the transmission worm are movably connected to the inner wall of the transmission box.

[0010] Preferably, the outer walls of the transmission worm are meshedly connected with transmission worm wheels on both sides, the inner wall of the transmission worm wheel is fixedly connected with a transmission screw, the rear end of the transmission screw is movably connected to the inner wall of the transmission box, and the front end of the transmission screw passes through the rear side wall of the machine body and is movably connected to the inner wall of the machine body.

[0011] Preferably, the outer wall of the transmission screw is located inside the body and is threadedly connected with a screw sleeve, and the top of the outer wall of the screw sleeve is fixedly connected to both sides of the top of the sliding frame.

[0012] Preferably, the inner wall of the buffer frame is fixedly connected to a limiting rod, the outer wall of the limiting rod is sleeved with a limiting seat, and the top of the limiting seat is fixedly connected to the bottom of the fixing frame.

[0013] Preferably, a spring is fixedly connected to the outer ring of the limiting rod at the front side of the limiting seat, and the front end of the spring is fixedly connected to the inner wall of the buffer frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model uses the structures of the motor, transmission shaft, first bevel gear, second bevel gear, transmission worm, transmission worm wheel, transmission screw and screw sleeve in the plug-in mechanism. The control console starts the motor to drive the transmission shaft and the first bevel gear to limit rotation, the first bevel gear engages to drive the second bevel gear and the transmission worm to limit rotation, the transmission worm engages to drive the transmission worm wheel and the transmission screw to limit rotation, the transmission screw drives the screw sleeve, the sliding frame, the first fixed seat and the plug to slide back and forth, thereby realizing automatic plug-in of the plug, so that some devices can quickly connect multiple groups of plug connectors through a group of pushing mechanisms, simplifying the pushing mechanism of the device, and improving the simplicity and practicality of the device.

[0016] 2. The utility model uses the buffer frame, limit rod, limit seat and spring structures in the buffer mechanism, and drives the joint to be plugged into the inside of the joint through the plug-in mechanism, so that the joint drives the buffer frame to slide backward, and the buffer frame drives the limit rod to slide synchronously on the inner wall of the limit seat. At the same time, the buffer frame compresses the spring to achieve force buffering of the joint, so that some devices can use the spring to buffer the rigid force of the plug joint, effectively avoiding force damage to the plug joint, and improving the protection and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view stereogram of the structure of the utility model;

[0018] Figure 2 It is a front view cross-sectional stereoscopic diagram of the structure of the utility model;

[0019] Figure 3 It is a bottom-view cross-sectional perspective view of the local structure of the transmission box and the plug-in mechanism of the utility model;

[0020] Figure 4 It is a side perspective view of the partial structure of the second fixing seat and the buffer mechanism of the utility model.

[0021] In the figure: 11, body; 12, transmission box; 13, sliding frame; 14, first fixed seat; 15, fixed frame; 16, second fixed seat; 17, control console; 2, plug-in mechanism; 21, motor; 22, transmission shaft; 23, first bevel gear; 24, second bevel gear; 25, transmission worm; 26, transmission worm wheel; 27, transmission screw; 28, screw sleeve; 3, buffer mechanism; 31, buffer frame; 32, limit rod; 33, limit seat; 34, spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , an embodiment provided by the utility model:

[0024] An insertion loss test fixture with a protective structure includes a body 11, a transmission box 12 is fixedly connected to the rear side of the body 11, a sliding frame 13 is provided on the front side of the body 11, a first fixing seat 14 is fixedly connected to the top of the sliding frame 13, a fixing frame 15 is fixedly connected to the rear side of the body 11, a second fixing seat 16 is provided above the fixing frame 15, and a console 17 is fixedly connected to the middle of the front side of the body 11;

[0025] A plug-in mechanism 2 is provided inside the transmission box 12, and the plug-in mechanism 2 includes a motor 21. The front side of the motor 21 is fixedly connected to the middle part of the rear side of the transmission box 12. A transmission shaft 22 is fixedly connected to the middle part of the front side of the motor 21. A first bevel gear 23 is fixedly connected to the front end of the transmission shaft 22. Through this design, the motor 21 drives the first bevel gear 23 to rotate in a limited position. The front side of the first bevel gear 23 is meshedly connected to the second bevel gear 24. The inner wall of the second bevel gear 24 is fixedly connected to a transmission worm 25. Both ends of the transmission worm 25 are movably connected to the inner wall of the transmission box 12. Through this design, the second bevel gear 24 drives the transmission worm 25 to rotate in a limited position. The transmission worm 25 is meshed with a transmission worm wheel 26 on both sides of the outer wall, and a transmission screw 27 is fixedly connected to the inner wall of the transmission worm wheel 26. The rear end of the transmission screw 27 is movably connected to the inner wall of the transmission box 12, and the front end of the transmission screw 27 passes through the rear side wall of the machine body 11 and is movably connected to the inner wall of the machine body 11. Through this design, the transmission worm 25 drives the transmission worm wheel 26 and the transmission screw 27 to rotate in a limited position. The outer wall of the transmission screw 27 is located in the inner thread of the machine body 11 and is connected with a screw sleeve 28. The top of the outer wall of the screw sleeve 28 is fixedly connected to the top two sides of the sliding frame 13. Through this design, the screw sleeve 28 drives the sliding frame 13 to slide back and forth.

[0026] A buffer mechanism 3 is provided below the fixed frame 15, and the buffer mechanism 3 includes a buffer frame 31. The upper inner wall of the buffer frame 31 is slidably connected to the top of the fixed frame 15, and the bottom of the second fixed seat 16 is fixedly connected to the top of the buffer frame 31. The inner wall of the buffer frame 31 is fixedly connected to the limit rod 32, and the outer wall of the limit rod 32 is sleeved with a limit seat 33. The top of the limit seat 33 is fixedly connected to the bottom of the fixed frame 15. Through this design, the buffer frame 31 is able to slide forward and backward in a limited manner in close contact with the top of the fixed frame 15. The front side of the limit seat 33 is located on the outer ring of the limit rod 32 and is fixedly connected to a spring 34. The front end of the spring 34 is fixedly connected to the inner wall of the buffer frame 31. Through this design, the buffer frame 31 compresses the spring 34 to buffer the force on the joint.

[0027] Working principle: when the plug needs to be automatically plugged in, first start the motor 21 through the console 17, the motor 21 drives the transmission shaft 22 to limit the rotation, the transmission shaft 22 drives the first bevel gear 23 to rotate synchronously, the first bevel gear 23 engages to drive the second bevel gear 24 to rotate, the second bevel gear 24 drives the transmission worm 25 to limit the rotation, the transmission worm 25 engages to drive the transmission worm wheel 26 to rotate synchronously, the transmission worm wheel 26 drives the transmission screw 27 to limit the rotation, the transmission screw 27 drives the screw sleeve 28, the sliding frame 13, the first fixed seat 14 and the plug to slide back and forth, thereby realizing the automatic plugging operation of the plug.

[0028] When the joint needs to be force buffered, the joint is first driven to be plugged into the interior of the joint through the plug-in mechanism 2, so that the joint drives the buffer frame 31 to slide backward, and the buffer frame 31 drives the limit rod 32 to slide synchronously on the inner wall of the limit seat 33. At the same time, the buffer frame 31 compresses the spring 34, thereby realizing the force buffering operation of the joint. The operation ends here.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An insertion loss test fixture with a protective structure, comprising a body (11), characterized in that: The rear side of the machine body (11) is fixedly connected to a transmission box (12); the front side of the interior of the machine body (11) is provided with a sliding frame (13); the top of the sliding frame (13) is fixedly connected to a first fixing seat (14); the rear side of the interior of the machine body (11) is fixedly connected to a fixing frame (15); a second fixing seat (16) is provided above the fixing frame (15); and a control console (17) is fixedly connected to the middle of the front side of the machine body (11); A plug-in mechanism (2) is provided inside the transmission box (12), the plug-in mechanism (2) comprising a motor (21), the front side of the motor (21) being fixedly connected to the middle of the rear side of the transmission box (12), a buffer mechanism (3) is provided below the fixed frame (15), the buffer mechanism (3) comprising a buffer frame (31), the upper part of the inner wall of the buffer frame (31) being slidably connected to the top of the fixed frame (15), and the bottom of the second fixed seat (16) being fixedly connected to the top of the buffer frame (31).

2. The insertion loss test fixture with a protective structure according to claim 1, characterized in that: A transmission shaft (22) is fixedly connected to the middle portion of the front side of the motor (21), and a first bevel gear (23) is fixedly connected to the front end of the transmission shaft (22).

3. The insertion loss test fixture with a protective structure according to claim 2, characterized in that: The front side of the first bevel gear (23) is meshingly connected to a second bevel gear (24), the inner wall of the second bevel gear (24) is fixedly connected to a transmission worm (25), and both ends of the transmission worm (25) are movably connected to the inner wall of the transmission box (12).

4. The insertion loss test fixture with a protective structure according to claim 3, characterized in that: The transmission worm (25) is meshedly connected to a transmission worm wheel (26) on both sides of the outer wall, and the inner wall of the transmission worm wheel (26) is fixedly connected to a transmission screw (27), the rear end of the transmission screw (27) is movably connected to the inner wall of the transmission box (12), and the front end of the transmission screw (27) passes through the rear side wall of the machine body (11) and is movably connected to the inner wall of the machine body (11).

5. The insertion loss test fixture with a protective structure according to claim 4, characterized in that: The outer wall of the transmission screw rod (27) is located inside the machine body (11) and is threadedly connected to a screw sleeve (28), and the top of the outer wall of the screw sleeve (28) is fixedly connected to both sides of the top of the sliding frame (13).

6. The insertion loss test fixture with a protective structure according to claim 1, characterized in that: The inner wall of the buffer frame (31) is fixedly connected to a limit rod (32), the outer wall of the limit rod (32) is sleeved with a limit seat (33), and the top of the limit seat (33) is fixedly connected to the bottom of the fixing frame (15).

7. The insertion loss test fixture with a protective structure according to claim 6, characterized in that: The front side of the limiting seat (33) is located at the outer ring of the limiting rod (32), and is fixedly connected to a spring (34), and the front end of the spring (34) is fixedly connected to the inner wall of the buffer frame (31).

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