Miniature photoelectric switch detection head without glue filling

Abstract

The utility model discloses a micro photoelectric switch detection head without glue pouring, and relates to an improvement of photoelectric detection equipment, in particular to an improvement of a photoelectric switch detection head. The left side of an inner cavity of an outer tube of the detection head is provided with a first assembly part, the left part of an inner cavity of the first assembly part is provided with a lens, the right part of the inner cavity of the first assembly part is provided with a light-emitting tube, the right side of the first assembly part is provided with a second assembly part, the right side of the second assembly part is provided with a fastening threaded tube, and the left side of the outer tube is provided with a wire outlet tube. And a wire penetrates through the wire outlet pipe and penetrates through the fastening threaded pipe, the second assembly part, the gap between the outer pipe and the first assembly part leftwards to reach the left end face of the outer pipe, and the wire penetrates into the wire outlet pipe and penetrates through the fastening threaded pipe and the second assembly part leftwards to be electrically connected with the light-emitting pipe. Fastening is achieved in a threaded pipe rotating and pressing mode, glue pouring is not needed in the assembling and using process, the detection head can be disassembled, maintained and repaired at any time, installation and fastening are rapid and convenient, the maintainability of the detection head is improved, the manufacturing period is shortened, and the detection head is more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to an improvement of a photoelectric detection device, in particular to an improvement of a photoelectric switch detection head. Background Art

[0002] Photoelectric detection is widely used because of its advantages such as high precision, fast response and non-contact. Photoelectric detection switches are widely used in many application scenarios because of their high sensitivity, simple structure and flexible and diverse forms.

[0003] Existing photoelectric switch detection heads are all glued and polished after assembly. Detection heads made by glue-filling are widely accepted because of the good stability of the connection points and contacts. However, glue-filling also makes disassembly and maintenance difficult. Some shells are almost impossible to disassemble after glue-filling, which seriously affects the maintainability of the detection head. In actual use, it can only be replaced but not repaired or maintained, which increases the cost of use. At the same time, glue-filling requires a long time to wait for the glue to solidify, which increases the production cycle and production cost of the detection head. In addition, polishing will produce dust and sewage, increasing environmental pollution during the production process. Utility Model Content

[0004] The purpose of the utility model is to provide a miniature photoelectric switch detection head that does not require glue filling in view of the defects and shortcomings of the prior art. It adopts a threaded tube rotation and pressing method to achieve compression and tightening. No glue filling is required during assembly and use. The detection head can be disassembled, maintained and repaired at any time, and installation and tightening are quick and convenient, which reduces the production and use costs of the detection head, shortens the production cycle of the detection head, improves the maintainability of the detection head, and reduces environmental pollution during the production process of the detection head.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises an outer tube 1, a small optical fiber 2, an assembly part 3, a lens 4, a light-emitting tube 5, an assembly part 6, a fastening threaded tube 7, and an electric wire 8. An assembly part 3 is arranged on the left side of the inner cavity of the outer tube 1, a lens 4 is arranged on the left part of the inner cavity of the assembly part 3, a light-emitting tube 5 is arranged on the right part of the inner cavity of the assembly part 3, an assembly part 2 6 is arranged on the right side of the assembly part 3, a fastening threaded tube 7 is arranged on the right side of the assembly part 2 6, an outlet tube 9 is arranged on the left side of the outer tube 1, the small optical fiber 2 penetrates from the outlet tube 9, passes through the fastening threaded tube 7, the assembly part 2 6 and the gap between the outer tube 1 and the assembly part 3 to the left to reach the left end face of the outer tube 1, and the electric wire 8 penetrates from the outlet tube 9, passes through the fastening threaded tube 7 and the assembly part 2 6 to the left to be electrically connected with the light-emitting tube 5.

[0006] The left part of the outer tube 1 is an external threaded tube 11, the inner cavity of the external threaded tube 11 is tapered, the left part has a small diameter, and the right part has a large diameter. The right part of the outer tube 1 is a first round tube 12, and the right part of the first round tube 12 is provided with an internal thread 121, which matches the fastening threaded tube 7. The left part of the assembly part 3 is a tapered tube 31, the left part of the tapered tube 13 has a small diameter, and the right part has a large diameter. The right part of the assembly part 3 is a second round tube 32, and the second round tube 32 is provided with a light-emitting tube 5. By rotating and tightening the threaded tube 7, the assembly part 2 6 will apply a leftward force to the assembly part 1 3, causing the assembly part 1 3 to move leftward relative to the external threaded tube 11. Since the inner cavity of the external threaded tube 11 and the left part of the assembly part 1 3 are both tapered and the diameter of the left part is larger than the diameter of the right part, the leftward movement of the assembly part 1 3 relative to the external threaded tube 11 will shorten the distance between the assembly part 1 3 and the external threaded tube 11, thereby increasing the friction force on the small optical fiber 2 arranged therebetween, thereby fixing the small optical fiber 2.

[0007] The left part of the second assembly part 6 is the third circular tube 61, and a through hole 64 is provided at the axis of the third circular tube 61, and the through hole 64 runs through the left and right parts. The right part of the second assembly part 6 is a double-layer circular tube 63, and four axial fan-shaped through holes 62 of the same size are evenly distributed circumferentially between the inner and outer layers of the double-layer circular tube 63. The small optical fiber 2 passes through the four axial fan-shaped through holes 62, and the cavity at the axis of the double-layer circular tube 63 is the right part of the through hole 64. The double-layer tube structure allows the small optical fiber 2 to pass through while taking into account the fastening of the small optical fiber 2.

[0008] The working principle of the utility model is that the distance between the conical cavity and the conical tube is adjusted by adjusting the relative position of the coaxial conical cavity and the conical tube axis, thereby adjusting the tightness of the small optical fiber sandwiched between the conical cavity and the conical tube.

[0009] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: it adopts the method of rotating and pressing the threaded tube to achieve compression and tightening, and no glue is required during the assembly and use process. The detection head can be disassembled, maintained and repaired at any time, and the installation and tightening are quick and convenient, which reduces the production and use costs of the detection head, shortens the production cycle of the detection head, improves the maintainability of the detection head, and reduces environmental pollution during the production process of the detection head. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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.

[0011] FIG1 is a schematic diagram of the appearance of the utility model;

[0012] FIG2 is a schematic diagram of the internal structure of the utility model;

[0013] FIG. 3 is a more detailed schematic diagram of the internal structure of the present invention.

[0014] Explanation of the accompanying drawings: outer tube 1, small optical fiber 2, assembly part 1 3, lens 4, light-emitting tube 5, assembly part 2 6, fastening threaded tube 7, electric wire 8, outlet tube 9, external threaded tube 11, first round tube 12, internal thread 121, tapered tube 31, second round tube 32, round tube 61, through hole 64, double-layer round tube 63, fan-shaped through hole 62. DETAILED DESCRIPTION

[0015] 1-3, the technical solution adopted in this specific embodiment is: it comprises an outer tube 1, a small optical fiber 2, an assembly part 3, a lens 4, a light-emitting tube 5, an assembly part 6, a fastening threaded tube 7, and an electric wire 8. An assembly part 3 is arranged on the left side of the inner cavity of the outer tube 1, a lens 4 is arranged on the left part of the inner cavity of the assembly part 3, a light-emitting tube 5 is arranged on the right part of the inner cavity of the assembly part 3, an assembly part 2-3 is arranged on the right side, a fastening threaded tube 7 is arranged on the right side of the assembly part 2-6, an outlet tube 9 is arranged on the left side of the outer tube 1, the small optical fiber 2 penetrates from the outlet tube 9, passes through the fastening threaded tube 7, the assembly part 2 6 and the gap between the outer tube 1 and the assembly part 3 to the left to reach the left end face of the outer tube 1, and the electric wire 8 penetrates from the outlet tube 9, passes through the fastening threaded tube 7 and the assembly part 2 6 to the left to be electrically connected with the light-emitting tube 5.

[0016] Furthermore, the left part of the outer tube 1 is an external threaded tube 11, the inner cavity of the external threaded tube 11 is tapered, the left part has a small diameter, and the right part has a large diameter. The right part of the outer tube 1 is a first round tube 12, and the right part of the first round tube 12 is provided with an internal thread 121, which cooperates with the fastening threaded tube 7.

[0017] Furthermore, the left part of the assembly part 3 is a tapered tube 31 , the left part of the tapered tube 13 has a small diameter, and the right part has a large diameter, the right part of the assembly part 3 is a second circular tube 32 , and the light-emitting tube 5 is arranged inside the second circular tube 32 .

[0018] Furthermore, the left part of the second assembly part 6 is a third circular tube 61, and a through hole 64 is provided at the axis of the third circular tube 61, and the through hole 64 runs through the left and right parts. The right part of the second assembly part 6 is a double-layer circular tube 63, and four axial fan-shaped through holes 62 of the same size are evenly distributed circumferentially between the inner and outer layers of the double-layer circular tube 63. The small optical fiber 2 passes through the four axial fan-shaped through holes 62, and the cavity at the axis of the double-layer circular tube 63 is the right part of the through hole 64.

[0019] After adopting the above technical solution, there is no need for glue filling during the assembly and use process, the detection head can be disassembled, maintained and repaired at any time, and the installation and tightening are quick and convenient, which reduces the production and use costs of the detection head, shortens the production cycle of the detection head, improves the maintainability of the detection head, and reduces environmental pollution during the production process of the detection head.

[0020] 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 micro photoelectric switch detection head that does not require glue filling, characterized in that: It comprises an outer tube (1), a small optical fiber (2), an assembly part 1 (3), a lens (4), a light-emitting tube (5), an assembly part 2 (6), a fastening threaded tube (7), an electric wire (8), and an outlet tube (9). The outer tube (1) has an assembly part 1 (3) arranged on the left side of the inner cavity, the assembly part 1 (3) has a lens (4) arranged on the left side of the inner cavity, the assembly part 1 (3) has a light-emitting tube (5) arranged on the right side of the inner cavity, the assembly part 1 (3) has an assembly part 2 (6) arranged on the right side, and the assembly part 1 (3) has an assembly part 2 (6) arranged on the right side. A fastening threaded tube (7) is arranged on the right side of the second assembly (6), and an outlet tube (9) is arranged on the left side of the outer tube (1). The small optical fiber (2) passes through the outlet tube (9), passes through the fastening threaded tube (7), the second assembly (6) and the gap between the outer tube (1) and the first assembly (3) to the left to reach the left end face of the outer tube (1). The electric wire (8) passes through the outlet tube (9), passes through the fastening threaded tube (7) and the second assembly (6) to the left to be electrically connected with the light-emitting tube (5).

2. According to claim 1, a micro photoelectric switch detection head that does not require glue filling is characterized by: The left part of the outer tube (1) is an external threaded tube (11), the inner cavity of the external threaded tube (11) is tapered, the left part has a small diameter, and the right part has a large diameter. The right part of the outer tube (1) is a first circular tube (12), and the right part of the first circular tube (12) is provided with an internal thread (121), and the internal thread (121) matches the fastening threaded tube (7).

3. The micro photoelectric switch detection head without glue filling according to claim 1 is characterized in that: The left part of the assembly part 1 (3) is a conical tube (31), the left part of the conical tube (31) has a small diameter, and the right part has a large diameter. The right part of the assembly part 1 (3) is a second circular tube (32), and a light-emitting tube (5) is arranged inside the second circular tube (32).

4. The micro photoelectric switch detection head without glue filling according to claim 1 is characterized in that: The left part of the second assembly part (6) is a third circular tube (61), and a through hole (64) is arranged at the axis center of the third circular tube (61), and the through hole (64) passes through the left and right parts. The right part of the second assembly part (6) is a double-layer circular tube (63), and four axial fan-shaped through holes (62) of the same size are evenly distributed circumferentially between the inner and outer layers of the double-layer circular tube (63), and the cavity at the axis center of the double-layer circular tube (63) is the right part of the through hole (64).

5. The micro photoelectric switch detection head without glue filling according to claim 1 is characterized in that: The small optical fiber (2) passes through four axial fan-shaped through holes (62).

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