Square adjustable optical fiber detection head

Abstract

The utility model discloses a square adjustable optical fiber detection head, which comprises a shell assembly, a locking sleeve, a transmitting optical fiber and a receiving optical fiber, a hollow threaded column is fixedly arranged at one end of the shell assembly, an upper detection hole and a lower detection hole are arranged at one end, far away from the hollow threaded column, of the shell assembly, a detection mirror is arranged in the upper detection hole, and the lower detection hole is arranged in the locking sleeve. A closed cover plate is arranged in the upper detection hole, the hollow threaded column is sleeved with the locking sleeve, the transmitting optical fiber is inserted into the hollow threaded column and extends into the upper detection hole, and the receiving optical fiber is inserted into the lower detection hole. The position of the transmitting optical fiber can be adjusted according to experiment requirements, the situation that the sensing distance is affected due to the fact that optical fiber focusing is not concentrated is avoided, and the transmitting optical fiber can be replaced when damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber detection technical field, concretely related to the improvement of optical fiber detection head. BACKGROUND

[0002] In optical fiber communication, optical fiber sensing and many other fields, accurate detection of optical fiber is very important. The existing optical fiber detection head is often fixed in structure. Through searching the prior art, Chinese patent application number: CN202420723117.1 discloses a long-distance optical fiber detection head, which comprises a detection head shell, a light-emitting optical fiber, two light-emitting convex mirrors, a light-receiving optical fiber and a light-receiving convex mirror. The upper part of the detection head shell is provided with two light-emitting convex mirrors, and the right side of the two light-emitting convex mirrors is the light-emitting optical fiber. The left side of the lower part of the detection head shell is provided with a light-receiving convex mirror, and the right side of the light-receiving convex mirror is the light-receiving optical fiber. The prior art has a longer detection distance, and the optical fiber line can be replaced at will according to needs. Moreover, multiple detection heads can be combined and installed, which can greatly shorten the production process. However, the optical fiber detection head with the above structure is of an integral type, and the optical fiber inside is fixed by glue filling. When the intensity of the light source changes or the position of the lens physically moves, the position of the optical fiber cannot be adjusted, which causes the optical fiber to focus not concentratedly, affects the sensing distance, and there is no way to replace the damaged optical fiber. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides a square adjustable optical fiber detection head, which has the advantages of adjusting the length of the light-emitting optical fiber during testing, locking the light-emitting optical fiber by a hollow locking device

[0004] , and further solves the problems that the optical fiber detection head is of an integral type, the optical fiber inside is fixed by glue filling, the intensity of the light source changes or the position of the lens physically moves, the position of the optical fiber cannot be adjusted, the optical fiber focuses not concentratedly, the sensing distance is affected, and there is no way to replace the damaged optical fiber

[0005] In order to realize the above-mentioned adjustable length of the emitting optical fiber during testing, the length of the emitting optical fiber 5 is adjusted by adjusting the tightness of the locking sleeve 4 and the hollow threaded column 12, and the emitting optical fiber 5 can be replaced when it is worn or damaged, and the specific technical scheme of the utility model is as follows: a square adjustable optical fiber detection head, which comprises a shell assembly 1, a locking sleeve 4, an emitting optical fiber 5, and an accepting optical fiber 6, wherein one end of the shell assembly 1 is fixedly provided with a hollow threaded column 12, the end of the shell assembly 1 away from the hollow threaded column 12 is provided with an upper detection hole 16 and a lower detection hole 14, a detection mirror 3 is arranged in the upper detection hole 16, a closing cover plate 2 is arranged in the upper detection hole 16, the locking sleeve 4 is sleeved on the hollow threaded column 12, the emitting optical fiber 5 is inserted into the upper detection hole 16 by being inserted into the hollow threaded column 12, and the accepting optical fiber 6 is inserted into the lower detection hole 14. During testing, the tightness of the locking sleeve 4 and the hollow threaded column 12 can be adjusted, the depth of the emitting optical fiber 5 can be adjusted, the sensing distance of the optical fiber focusing is not affected, and the optical fiber can be replaced when it is damaged.

[0006] Further, the shell assembly 1 is provided with threaded holes 11, the emitting optical fiber 5 and the receiving optical fiber 6 are better fixed in the shell assembly 1 by bolt locking.

[0007] Further, the threaded holes 11 are two groups, the threaded holes 11 are countersunk threaded holes, and the bolts can be used to fix the front and rear surfaces, so that the square adjustable optical fiber detection head is suitable for different working environments.

[0008] Further, the shell assembly 1 is provided with a positioning hole 13, a wedge 15 is arranged in the positioning hole 13, the wedge fixes the receiving optical fiber 6, and the wedge 15 extrudes the outer skin of the receiving optical fiber 6 to fix the receiving optical fiber 6.

[0009] The drawing comprises: 1, a shell assembly; 11, threaded holes; 12, a hollow threaded column; 13, a positioning hole; 14, a lower detection hole; 15, a wedge; 16, an upper detection hole; 2, a closing cover plate; 3, a detection mirror; 4, a locking sleeve; 5, an emitting optical fiber; 6, a receiving optical fiber;

[0010] Compared with the prior art, the utility model provides a square adjustable optical fiber detection head, which has the following beneficial effects: when the intensity of the emitting light source changes or the position of the detection mirror 3 physically moves, the position of the emitting optical fiber 5 can be adjusted according to the experimental requirements, the optical fiber focusing is avoided from being not concentrated, the sensing distance is affected, and the emitting optical fiber 5 can be replaced when it is damaged. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0012] Figure 1 is a structural schematic diagram of the present application;

[0013] Figure 2 is an exploded structural schematic diagram of the present application;

[0014] Figure 3 is a sectional view of the present application;

[0015] Figure 4 is a left view of the present application; Figure 1 DETAILED DESCRIPTION

[0016] In order to further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0017] According to the embodiments of the present application, a square adjustable optical fiber detection head is provided.

[0018] The present application will be further described in combination with the drawings and specific embodiments, as shown in the drawings, according to the present application, when assembling the square adjustable optical fiber detection head of the present application, first, the detection mirror 3 is installed in the upper detection hole 16, then the sealing cover plate 2 is covered, one end of the locking sleeve 4 is sleeved on the hollow threaded column 12, then the emitting optical fiber 5 is inserted into the hollow threaded column 12 and extends to the appropriate position in the upper detection hole 16, the locking sleeve 4 is sleeved and tightened, so that the emitting optical fiber 5 is fixed; when in use, the length of the emitting optical fiber 5 can be adjusted according to the needs of the test by adjusting the tightness of the locking sleeve 4 and the hollow threaded column 12, and when the emitting optical fiber 5 is worn or damaged, it can also be replaced. Figures 1-4 Preferably, the shell is locked by bolts, screws or the like through the threaded holes 11.

[0019] Preferably, the threaded holes 11 are two groups, and the threaded holes 11 are countersunk threaded holes, which are more suitable for installation environment and have better locking effect.

[0020] ​​

[0021] The wedge 15 is preferably inserted into the positioning hole 13 to complete the positioning of the receiving optical fiber 6, and the wedge 15 extrudes the sheath of the receiving optical fiber 6 to fix the receiving optical fiber 6.

[0022] In the actual detection process, according to different detection objects and requirements, precise detection can be realized by adjusting the positions of the emitting optical fiber 5 and the receiving optical fiber 6

[0023] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction relationship of two elements of two elements inside, unless another definite limitation, for the ordinary skilled in the art, can understand the specific meaning of the above-mentioned term in the utility model according to specific circumstances.

[0024] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A square adjustable optical fiber inspection probe, characterized by: The utility model relates to a light emitting and receiving device, including shell assembly (1), locking sleeve (4), emitting optical fiber (5), receiving optical fiber (6), one end of shell assembly (1) is fixed with hollow screw column (12), the one end of shell assembly (1) away from hollow screw column (12) is provided with upper detection hole (16) with lower detection hole (14), be provided with detection mirror (3) in upper detection hole (16), be provided with enclosed cover plate (2) in upper detection hole (16), locking sleeve (4) is sleeved on hollow screw column (12), emitting optical fiber (5) is inserted on hollow screw column (12) and extends to upper detection hole (16), and receiving optical fiber (6) is inserted in lower detection hole (14).

2. A square adjustable optical fiber inspection probe according to claim 1, wherein is characterized by: The shell assembly (1) is provided with a threaded hole (11).

3. A square adjustable optical fiber inspection probe according to claim 2, wherein is characterized by: The threaded hole (11) is two groups, and the threaded hole (11) is a countersunk threaded hole.

4. A square adjustable optical fiber inspection probe according to claim 1, wherein is characterized by: The shell assembly (1) is provided with a positioning hole (13), and the positioning hole (13) is provided with a wedge (15).

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