Long-distance optical fiber detection head

Abstract

The utility model discloses a long-distance optical fiber detection head, and relates to improvement of an optical fiber detection device, in particular to improvement of the long-distance optical fiber detection head. The detection head 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, two light-emitting convex mirrors are arranged on the upper portion in the detection head shell, light-emitting optical fibers are arranged on the right sides of the two light-emitting convex mirrors, a light-receiving convex mirror is installed on the left side of the lower portion in the detection head shell, and light-receiving optical fibers are arranged on the right side of the light-receiving convex mirror. Fixing holes are formed in the upper portion and the lower portion of the detection head shell, and fixing clamping columns are arranged in the fixing holes. The device has the advantages that the device has a longer detection distance and maintainability, a plurality of detection heads can be combined and mounted, the production process can be greatly shortened, the production process is greatly simplified, the labor demand is saved, higher detection requirements can be met, and meanwhile, the overall production and use cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to an improvement of an optical fiber detection device, in particular to an improvement of a long-distance optical fiber detection head. Background Art

[0002] Fiber optic detection head is a common detection equipment, which is welcomed by many users due to its good detection effect and wide application.

[0003] The current fiber optic detection head has a short detection distance, and it is not convenient to install multiple detection heads in combination. It has few application scenarios and is difficult to adapt to the current changeable and complex detection environment. In addition, the overall production process of the current detection head is complex and the cost is high. Utility Model Content

[0004] The purpose of the utility model is to provide a long-distance fiber optic detection head in response to the defects and shortcomings of the prior art. The utility model has the advantages of a longer detection distance, the optical fiber line can be replaced at will according to needs, and multiple detection heads can be conveniently installed in combination, which can greatly shorten the production process, greatly simplify the production process, save labor requirements, and can adapt to higher detection requirements, while greatly reducing the overall production and use costs.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a detection head housing 1, a light-emitting optical fiber 2, two light-emitting convex mirrors 4, a light-receiving optical fiber 3, and a light-receiving convex mirror 6; two light-emitting convex mirrors 4 are arranged on the upper left side of the detection head housing 1, and the light-emitting optical fiber 2 is arranged on the right side of the two light-emitting convex mirrors 4, and a light-receiving convex mirror 6 is installed on the lower left side of the detection head housing 1, and the light-receiving optical fiber 3 is arranged on the right side of the light-receiving convex mirror 6.

[0006] An optical fiber protective sleeve 7 is provided at the transition between the light-emitting optical fiber 2 and the light-receiving optical fiber 3 and the detection head housing 1. The optical fiber protective sleeve 7 can protect the safety of the external optical fiber and make it not easily damaged. The detection head housing 1 is provided with a fixing hole 11, and a fixing column 12 is provided in the fixing hole 11, and one end of the fixing column 12 is a conical structure. The outer layer of the optical fiber is clamped by the inserted fixing column to achieve the function of fixing the optical fiber. One end of the fixing column 12 is set to a cone for easy insertion and tightening. It is convenient for accurate and rapid assembly of the detection head housing. The front and back sides of the detection head housing 1 are respectively provided with a combined positioning strip 13 and a combined positioning groove 14. When multiple optical fiber heads are installed in combination, the combined positioning strip 13 is inserted into the combined fixing groove 14 of another optical fiber head, which is convenient for users to combine and install multiple detection heads.

[0007] A light path direction indicator 17 is provided on the front of the detection head housing 1. The light path direction indicator 17 is provided to facilitate the user to identify the direction of the light path.

[0008] The detection head housing 1 is provided with a screw hole 18 therethrough.

[0009] The working principle of the utility model: it is provided with two light-emitting convex mirrors 4 at the light-emitting end, and the first convex mirror close to the light-emitting optical fiber 2 is used to fully receive the light emitted by the optical fiber and reduce the divergence of the light beam, and the second convex mirror is used to adjust the light angle to form parallel light or focal light, so as to improve the utilization rate of light, thereby improving the detection distance, and the optical fiber can be replaced by inserting and removing the fixed card column. After adopting the structure of the utility model, the overall disassembly and assembly performance can also be improved, which is convenient for combination and installation, and saves the labor demand for assembly; due to the improvement of light utilization rate, the detection distance is lengthened, and the detection resolution is also improved synchronously, so that the technical solution of the utility model can adapt to more and more demanding detection scenarios.

[0010] After adopting the above technical scheme, the beneficial effects of the utility model are: it has a longer detection distance, the optical fiber line can be replaced at will according to needs, and multiple detection heads can be installed in combination, which can greatly shorten the production process, greatly simplify the production process, save labor requirements, and can adapt to higher detection requirements. At the same time, it greatly reduces the overall production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 Back view of ;

[0014] Figure 3 It is a schematic diagram of the internal structure of the detection head housing 1 in the utility model;

[0015] Figure 4 It is a structural schematic diagram of the fixed clamping column 12 in the utility model.

[0016] Explanation of the reference numerals: detection head housing 1, light-emitting optical fiber 2, two light-emitting convex mirrors 4, light-receiving optical fiber 3, light-receiving convex mirror 6, optical fiber protective cover 7, fixing hole 11, fixing column 12, combined positioning strip 13, combined positioning groove 14, optical path direction indicator 17, screw hole 18. DETAILED DESCRIPTION

[0017] See also Figure 1-4As shown, the technical solution adopted in this specific embodiment is: it includes a detection head housing 1, a light-emitting optical fiber 2, two light-emitting convex mirrors 4, a light-receiving optical fiber 3, and a light-receiving convex mirror 6; the detection head housing 1 has two convex mirrors 4 on the upper left side, and the light-emitting optical fiber 2 is on the right side, and the light-receiving convex mirror 6 is installed on the lower left side of the detection head housing 1, and the light-receiving optical fiber is on the right side of the light-receiving convex mirror 6. An optical fiber protective cover 7 is provided at the transition between the light-emitting optical fiber 2 and the light-receiving optical fiber 3 and the detection head housing 1. The detection head housing 1 is provided with a fixing hole 11, and a fixing column 12 is provided in the fixing hole 11, and one end of the fixing column 12 is a conical structure.

[0018] The front and back sides of the detection head housing 1 are respectively provided with a combination positioning strip 13 and a combination positioning groove 14. The front side of the detection head housing 1 is provided with an optical path direction indicator 17. The detection head housing 1 is provided with a screw hole 18 through it.

[0019] In this specific embodiment, two convex mirrors 4 are arranged at the light-emitting end. The first convex mirror close to the light-emitting optical fiber 2 is used to fully receive the light emitted by the optical fiber and reduce the divergence of the light beam. The second convex mirror is used to adjust the light angle to form parallel light or focal light, so that the utilization rate of light can be improved, thereby increasing the detection distance. The optical fiber can be replaced by inserting and removing the fixed clamping column. After adopting the structure of the utility model, the overall disassembly and assembly performance can also be improved, which is convenient for assembly and installation, and saves the labor demand for assembly. Due to the improvement of light utilization, the detection distance is improved while the detection resolution is also improved synchronously, so that the technical solution of the utility model can adapt to more and more demanding detection scenes. The optical fiber protective cover 7 is provided to protect the safety of the external optical fiber line 2 and make it not easy to be damaged. The outer layer of the optical fiber is clamped by the inserted fixed clamping column to achieve the function of fixing the optical fiber. It is convenient for the detection head housing to be assembled accurately and quickly. A combined positioning strip 13 and a combined positioning groove 14 are provided. When multiple optical fiber heads are installed in combination, the combined positioning strip 13 is inserted into the combined fixed groove 14 of another optical fiber head, which is convenient for users to install multiple detection heads in combination. An optical path direction indicator 17 is provided to facilitate users to identify the direction of the optical path.

[0020] After adopting the above technical solution, it has a longer detection distance, the optical fiber line can be replaced at will according to needs, and multiple detection heads can be installed in combination, which can greatly shorten the production process, greatly simplify the production process, save labor requirements, and can adapt to higher detection requirements. At the same time, it greatly reduces the overall production and use costs.

[0021] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A long-distance optical fiber detection head, characterized in that: It comprises a detection head housing (1), a light-emitting optical fiber (2), two light-emitting convex mirrors (4), a light-receiving optical fiber (3), and a light-receiving convex mirror (6); the upper part of the detection head housing (1) is provided with two light-emitting convex mirrors (4), the right side of the two light-emitting convex mirrors (4) is the light-emitting optical fiber (2), the lower left part of the detection head housing (1) is provided with a light-receiving convex mirror (6), and the right side of the light-receiving convex mirror (6) is the light-receiving optical fiber (3).

2. A long distance optical fiber detection head according to claim 1, characterized in that: An optical fiber protective sleeve (7) is provided at the transition point between the light-emitting optical fiber (2) and the detection head housing (1).

3. A long distance optical fiber detection head according to claim 1, characterized in that: The detection head housing (1) is provided with fixing holes (11) at the top and bottom, and a fixing column (12) is provided in the fixing hole (11), and one end of the fixing column (12) is a conical structure.

4. The long-distance optical fiber detection head according to claim 1, characterized in that: The front shell surface of the detection head shell (1) is provided with two combined positioning strips (13), and the rear shell surface of the detection head shell (1) is provided with two combined positioning grooves (14). When a plurality of optical fiber heads are assembled and installed, the combined positioning strip (13) is inserted into another optical fiber head combined positioning groove (14).

5. The long-distance optical fiber detection head according to claim 1, characterized in that: An optical path direction indicator (17) is provided on the front side of the detection head housing (1).

6. The long-distance optical fiber detection head according to claim 1, characterized in that: The detection head housing (1) is provided with a screw hole (18) extending therethrough.

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