CN205647480U - Little inductive head diffuse reflection photoelectric switch - Google Patents

Abstract

The utility model relates to a little inductive head diffuse reflection photoelectric switch, including inductive head, functional body, four -core shielding wire, power cord and signal line, the inductive head includes: the metal outer tube, metal internal tube, the launching tube, the focus lens, the receiver tube, the leaded light is glued. Functional body includes: function circuit board, functional shell. Its characterized in that inductive head and functional body separation are connected by the four -core shielded wire. Inductive head metal internal tube is in the positive center of metal outer tube, and the light that the launching tube sent jets out through focus lens focus formation light beam between two parties, and the receiver tube is settled in the launching tube rear end, and the inside leaded light of packing of metal outer tube is glued, and the light signal sees through the gluey transmission of leaded light and gives the receiver tube. The beneficial effects of the utility model are that, can dwindle diffuse reflection photoelectric switch's installation volume by a wide margin, it is luminous placed in the middle, realized the miniaturization of like product, high accuracyization, range of application are very extensive.

Description

A kind of little inductive head diffuses electric switch

Technical field:

This utility model relates to a kind of little inductive head and diffuses electric switch, is mainly used in various automated machine equipment.

Background technology:

In the application such as diffuse electric switch, is to utilize object that to the existence detecting object, the reflection of light is had nothing, and detectable substance can be metal or nonmetal, and the electric switch that diffuses is widely used as the detection in field of machinery automation, counting.

But the general volume of the electric switch that diffuses in the market is relatively big, inductive head and function body integration, transmitting tube and reception tube side-by-side, in inductive head, cause product size bigger, it is impossible to be applied to the place of narrow space and the place of some precisions.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of installation volume is little, and length is short, the novel electric switch that diffuses that accuracy of detection is high.

To achieve these goals, this utility model adopts the technical scheme that:

A kind of inductive head diffuses electric switch, and including inductive head, function body, four core shielding wires, power line and holding wire, inductive head includes: metal outer pipe, metal inner pipe, transmitting tube, focusing lens, receives pipe, guide-lighting glue, nut.Function body includes: functional circuit plate, functional shell.Inductive head separates with function body, the functional circuit plate of function body it is connected to by four core shielding lines, wherein two cores connect transmitting tube, and other two cores connect to receive manages, and screen layer connection inductive head metal outer pipe and functional circuit plate ground wire carry out the interference signal of shielded line.Inductive head metal outer pipe is the threaded pipe of column type, has the installation for inductive head of a pair nut above.Metal inner pipe is column type body of light pipe, is in the middle of metal outer pipe, and flush.Metal inner pipe front end is provided with a focusing lens, and rear end is transmitting tube, the light that transmitting tube sends through focusing lens to increase distance of reaction and precision.Receiving pipe to separate in the dead astern of transmitting tube, metal outer pipe is internal fills full guide-lighting glue, and by metal inner pipe around parcel, after guide-lighting glue is solid, guide-lighting performance is fine, and the optical signal reflected passes to receive pipe through guide-lighting glue.Inductive head separates with function body, tandem structure is managed in transmitting tube and reception, inductive head outside dimension is significantly reduced, minimum diameter is up to 6mm, and wherein metal outer pipe internal diameter is 5mm, and metal inner pipe external diameter is 4mm, inner and outer pipes gap is 1mm, owing to spacer ring was around metal inner pipe one week, interval area is appointed and so be can reach 7.065 square millimeters, it is ensured that ideal optical signal receiving area.

Accompanying drawing illustrates:

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is system construction drawing of the present utility model

Fig. 2 is cut-away view of the present utility model

Detailed description of the invention:

As shown in Figure 1, a kind of little inductive head diffuses electric switch, including inductive head, function body, power line and holding wire, inductive head includes: metal outer pipe (1), metal inner pipe (2), transmitting tube (3), focusing lens (4), receive pipe (5), guide-lighting glue (6), nut (7).Function body includes: functional circuit plate (8), functional shell (9).Inductive head separates with function body, the functional circuit plate (8) of function body is extended for connection to by four core shielding lines (10), wherein two cores connect transmitting tube (3), other two cores connect to receive manages (5), and the ground of screen layer connection inductive head metal outer pipe (1) and functional circuit plate (8) carrys out the interference signal of shielded line.Inductive head metal outer pipe (1) is the threaded pipe of column type, there is the installation that nut (7) is used for inductive head above a pair, metal inner pipe (2) is column type body of light pipe, it is in the middle in metal outer pipe (1), and it is flush, a uniform annular gap is formed between two pipes, the light that the transmitting tube (3) of metal inner pipe (2) rear end sends is focused on by the focusing lens (4) of front end and forms light beam injection, reception pipe (5) is positioned on the dead astern of transmitting tube (3) and separates, full guide-lighting glue (6) is filled in metal outer pipe (1) inner space, by metal inner pipe (2) around parcel, annular gap between metal outer pipe (1) and metal inner pipe (2) is filled up by guide-lighting glue, the optical signal reflected passes to receive pipe (5) through guide-lighting glue (6).Inductive head separates with function body, transmitting tube (3) and reception pipe (5) tandem structure, so that inductive head size is significantly reduced, such as the metal inner pipe (2) that the metal outer pipe (1) using internal diameter to be 5mm, external diameter are 4mm, the size of the most whole inductive head can accomplish 6mm, wherein inner and outer pipes gap is 1mm, owing to spacer ring is around the metal inner pipe structure of a week, interval area is appointed and so be can reach 7.065 square millimeters, it is ensured that ideal optical signal receiving area.For very useful in the occasion that installing space is the narrowest and small, inductive head is arranged on sense object in narrow space, signal is processed by the function body of outside, drive ancillary equipment and the devices such as relay, buzzer, display lamp, it is applicable to precision instrument, the miniaturizations such as automated machine equipment, precise treatment, technicalization industry.Also apply be applicable to the common industry such as chemical industry, food, weaving, plastic cement.

Claims (3)

1. a little inductive head diffuses electric switch, including inductive head, function body, power line and holding wire, inductive head includes: metal outer pipe, metal inner pipe, transmitting tube, focusing lens, receive pipe, guide-lighting glue, nut, function body includes: functional circuit plate, functional shell, it is characterized in that: inductive head separates with function body, connected by four core shielding lines, it it is a threaded metal tube of column type outside inductive head, metal inner pipe is column type body of light pipe, in metal outer pipe between two parties, two pipes flush, there is a uniform annular gap centre, metal inner pipe front end is equipped with focusing lens, rear end is transmitting tube.

Little inductive head the most according to claim 1 diffuses electric switch: it is characterized in that: fill guide-lighting glue inside metal outer pipe, is also filled up by guide-lighting glue in the annular gap between metal inner pipe and metal outer pipe.

Little inductive head the most according to claim 1 diffuses electric switch, it is characterised in that: transmitting tube and receive pipe and be one in front and one in back arranged in inductive head, receive pipe in the dead astern of transmitting tube, and separate.