CN210533966U

CN210533966U - End telescopic test optical fiber head

Info

Publication number: CN210533966U
Application number: CN201920905684.8U
Authority: CN
Inventors: 应刚; 韩中泽; 谢松林
Original assignee: Shenzhen Skyray Instrument Co Ltd
Current assignee: Shenzhen Skyray Instrument Co Ltd; Jiangsu Skyray Instrument Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-05-15
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a tip flexible test fiber head, including the head, the nut through the external screw thread connection of head downside, set up at nut second cavity and through the movable sleeve of cavity through-hole, place in the movable sleeve below and withstand the elastic component of movable sleeve, and be located the nut third cavity and withstand the stop collar of elastic component, shoulder structure has between first cavity and the second cavity, the bottom of movable sleeve has the shaft shoulder that corresponds the screens with shoulder structure, the optic fibre lock pin gets into the through-hole of the movable sleeve that is located in the second cavity through the third cavity and leaves the clearance with the top face of head, the fibre core inserts in the optic fibre lock pin; the utility model discloses what can be more convenient detects big brill and little brill.

Description

End telescopic test optical fiber head

Technical Field

The utility model belongs to the technical field of optical machinery and specifically relates to a test fiber head.

Background

The optical fiber as a photoconductive carrier is an indispensable component in diamond testing instruments, and is widely applied to various diamond testing instruments at present; however, through use and investigation, it is found that all optical fiber components on the market at present are fixed at the testing end, and the following two problems are easy to occur when testing is carried out: the optical fiber is directly contacted with the diamond, and the working end face (transparent/reflective) of the optical fiber is easy to wear; when the diamond particles are small, especially when testing the mosaic of scattered diamonds, there are misalignment conditions that cause misdetection, and it is therefore necessary to find a suitable way and method to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to overcome at least one of the above-mentioned defects in the prior art, and the present invention provides an optical fiber head for end stretch test, comprising a head having a hollow through hole at an end of the optical fiber head and an internal thread at a lower portion of the hollow through hole, a nut coupled to an internal thread of a first chamber of the nut through the external thread of the head, a movable sleeve disposed in a second chamber of the nut and passing through the hollow through hole, an elastic member disposed below the movable sleeve and abutting against the movable sleeve, and a position-limiting sleeve disposed in a third chamber of the nut and abutting against the elastic member, wherein a shoulder structure is disposed between the first chamber and the second chamber, a shoulder clamped in correspondence to the shoulder structure is disposed at a bottom of the movable sleeve, and an optical fiber ferrule enters the through hole of the movable sleeve disposed in the second chamber through the third chamber and has a gap with a top end surface of the head, the fiber core is inserted into the fiber stub.

According to the background art, the following two problems are easily encountered when performing diamond testing: the optical fiber is directly contacted with the diamond, and the working end face (transparent/reflective) of the optical fiber is easy to wear; when the diamond particles are very small, particularly when the inlaid scattered diamond is tested, the situation of inaccurate alignment exists, and misdetection is caused; and the utility model discloses a flexible test fiber head of tip makes the movable sleeve can reciprocate through elastic element, in the diamond testing process, only need with the diamond await measuring the face with the head terminal surface (to the great diamond of size) contact just pushes down or arranges in the inside push down of movable sleeve (to the less diamond of size) makes testing instrument can obtain suitable distance at the in-process of pushing down and tests, so can guarantee that the lithodomous face of awaiting measuring does not take place direct contact with the face that optic fibre corresponds, simultaneously to the diamond, the movable sleeve then can play the spacing effect of location, has avoided corresponding inaccurate problem.

Under a normal state, the movable sleeve protrudes out of the end face of the head, and when a large drill is tested, the movable sleeve retreats to the position flush with the end face of the head under the action of pressure and an elastic element because the size of the movable sleeve is smaller than that of the large drill, and detection is carried out at the moment; when the small drill is tested, the small drill can be directly pressed into the movable sleeve, the movable sleeve moves downwards under the action of pressure and the elastic element, and the test of the small drill is completed in the downward movement process.

Additionally, according to the utility model discloses a flexible test fiber head of tip still has following additional technical characterstic:

further, the top end of the fiber core is flush with the top end of the pipeline core insert.

Further, the top end of the fiber core is flush with the top end of the pipeline ferrule, and the gap is larger than or equal to 1mm and smaller than or equal to 3 mm. The proper gap can ensure that the optimal distance is found and the optimal test result is obtained in the process of pressing down the diamond.

Further, the head is of a flange structure.

Further, the elastic element is a spring.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

the optical fiber connector comprises a head 1, a nut 2, an optical fiber ferrule 3, a movable sleeve 4, a fiber core 5, an elastic element 6 and a limiting sleeve 7.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout; the embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "lateral", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "coupled," "communicating," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly connected, integrally connected, or detachably connected; may be communication within two elements; can be directly connected or indirectly connected through an intermediate medium; the term "fit" can be a surface-to-surface fit, a point-to-surface or a line-to-surface fit, and also includes a hole-axis fit, and a person skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

As shown in the figures, according to the embodiment of the present invention, the optical fiber head for end stretch test comprises a head part having a hollow through hole at the end of the optical fiber head and an internal thread at the lower part of the hollow through hole, a nut coupled with the internal thread of the first cavity by the external thread at the lower side of the head part, a movable sleeve disposed in the second cavity of the nut and passing through the hollow through hole, an elastic component disposed below the movable sleeve and abutting against the movable sleeve, and a stop sleeve disposed in the third cavity of the nut and abutting against the elastic component, wherein a shoulder structure is disposed between the first cavity and the second cavity, a shaft shoulder corresponding to the shoulder structure is disposed at the bottom of the movable sleeve, an optical fiber ferrule enters the through hole of the movable sleeve disposed in the second cavity through the third cavity and has a gap with the top end surface of the head part, the fiber core is inserted into the fiber stub.

Additionally, according to the utility model discloses a flexible test optical fiber head of tip still has following additional technical characterstic:

according to some embodiments of the invention, the top of the fiber core is flush with the top of the pipeline ferrule.

According to some embodiments of the utility model, the top of fibre core with the top parallel and level of pipeline lock pin, the clearance is at more than or equal to 1mm and less than or equal to 3 mm. The proper gap can ensure that the optimal distance is found and the optimal test result is obtained in the process of pressing down the diamond.

According to an embodiment of the invention, the head is of a flange structure.

According to an embodiment of the invention, the elastic element is a spring.

According to some embodiments of the utility model, the head is SMA905 flange joint, the nut is SMA905 nut.

Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention; the schematic representations in various places in the specification do not necessarily refer to the same embodiment; further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.

While the invention has been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention; in particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention; except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.

Claims

1. An end part telescopic test optical fiber head is characterized by comprising a head part which is positioned at the end part of the optical fiber head and is provided with a hollow through hole, the lower part of the hollow through hole is provided with internal threads, a nut which is connected with the internal thread of the first chamber of the nut through the external thread on the lower side of the head, a movable sleeve which is arranged in the second chamber of the nut and passes through the hollow through hole, an elastic part which is arranged below the movable sleeve and is propped against the movable sleeve, and a stop collar positioned in the third cavity of the nut and abutting against the elastic component, wherein a shoulder structure is arranged between the first cavity and the second cavity, the bottom of the movable sleeve is provided with a shaft shoulder which is clamped correspondingly to the shoulder structure, the optical fiber insertion core enters the through hole of the movable sleeve in the second chamber through the third chamber and a gap is reserved between the optical fiber insertion core and the top end face of the head, and the fiber core is inserted into the optical fiber insertion core.

2. An end telescoping test fiber optic head according to claim 1, wherein the top end of the core is flush with the top end of the fiber stub.

3. An end telescoping test fiber optic head according to claim 1, wherein the top end of the core is flush with the top end of the fiber stub, and the gap is between 1mm and 3 mm.

4. An end telescoping test fiber optic head as claimed in claim 1, wherein said head is a flange structure.

5. An end telescoping test fiber optic head as claimed in claim 1, wherein said resilient member is a spring.