Inductive sensor

Abstract

The utility model discloses an inductance type sensor, and specifically relates to the sensor technology field, the inductance type sensor comprises a connection housing, the outer side of the connection housing is in limit rotation connection with a mounting plate, the mounting plate is provided with a connection groove, a plurality of extrusion springs are arranged in the connection groove in a circular distribution mode at equal intervals, and the bottom walls of the plurality of extrusion springs are connected with a first annular block; a plurality of grooves are circularly distributed in the surface of the side, away from the extrusion spring, of the first annular block at equal intervals, a second annular block is fixedly arranged on the outer side of the connecting shell, and a plurality of protruding blocks are distributed on the surface of the bottom end of the second annular block at equal intervals. According to the invention, a connecting line at a connecting port part on the sensor body can be turned before and after assembly, and the positions of the rotated sensor body and the connecting port part are limited and fixed, so that the subsequent wiring processing of the connecting line is facilitated, the damage risk is reduced, and meanwhile, the high-temperature endurance capability of the device is improved; and the device can stably work in a high-temperature environment for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field more specifically, the utility model relates to inductance sensor. BACKGROUND

[0002] The proximity sensor is a kind of sensor with the ability of sensing object approach, it can identify the object approaching it, and output corresponding switch signal, therefore, proximity sensor is also called proximity switch generally. It is the general term of sensor for the purpose of detecting the object without contact, it can detect the movement and existence information of object and convert into electrical signal, in industrial production, especially in high-temperature environment such as steel smelting, chemical industry, aerospace, the stability and reliability of sensor are extremely high;

[0003] Although traditional inductance proximity sensor has the advantages of non-contact measurement, fast response speed etc., but it cannot work normally in high-temperature environment due to material performance limitation, at the same time, traditional inductance proximity sensor is usually fixedly arranged on mounting plate, then mounting plate is fixedly arranged on bolt, when the connecting line at the interface of sensor body hinders other electrical equipment, needs to be rotated and adjusted position and direction, the connecting line at the interface of sensor body can be angle-adjusted after mounting plate is disassembled again, the device is not convenient for subsequent wiring position adjustment when being installed and used;

[0004] Therefore, inductance sensor is proposed aiming at the above problems. INVENTION CONTENTS

[0005] In order to overcome the above-mentioned defects of prior art, the utility model provides inductance sensor to solve the problems proposed in the above background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: inductance sensor, including connecting shell, the connecting shell outside limit rotation is connected with mounting plate, the mounting plate is opened with connecting groove, a plurality of extrusion springs are arranged in the connecting groove and are circularly distributed at equal intervals, one first annular block is commonly connected and arranged at the end of a plurality of extrusion springs away from the bottom wall in the connecting groove, a plurality of recesses are opened on the surface of the first annular block away from the extrusion spring and are circularly distributed at equal intervals, a second annular block is fixedly arranged on the outside of the connecting shell, and a plurality of convex blocks are arranged on the surface of the bottom end of the second annular block at equal intervals.

[0007] Preferably, the surface of the first annular block and the surface of the side where the recess is opened are fixedly provided with rubber gaskets, and a plurality of avoidance holes corresponding to the recesses are opened on the surface of the rubber gaskets.

[0008] Preferably, one end of the connecting shell is provided with a sensor body, the sensor body is provided with a connecting port component, and the surface of the sensor body is provided with an indicator light.

[0009] Preferably, the other end of the connecting shell is connected with a detection probe, the bottom end of the detection probe is provided with an electromagnetic induction layer, and the detection probe is provided with a high-frequency oscillator.

[0010] Preferably, the mounting plate is provided with a threaded hole on both sides, and bolts are threadedly arranged in the threaded holes.

[0011] Preferably, the sensor body is internally provided with a mounting circuit panel, the circuit panel is provided with an amplification output circuit and a voltage stabilizing filter circuit, the amplification output circuit and the voltage stabilizing filter circuit are electrically connected, and the voltage stabilizing filter circuit is electrically connected with the high-frequency oscillator.

[0012] Preferably, the detection probe comprises a base body, an alloy outer shell and a nano coating, the outer side of the base body is provided with the alloy outer shell, the outer side of the alloy outer shell is coated with the nano coating, the base body is made of ceramic material, the alloy outer shell is made of nickel-based alloy material, and the nano coating is made of polydimethylsiloxane material.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. Compared with the prior art, the extrusion spring is arranged in cooperation with the first annular block, so that the extrusion spring extrudes the first annular block, and then drives the groove arranged on the first annular block to be close to the protruding block arranged on the second annular block, so that the rotating sensor body and the connecting port component are fixed and limited, the connecting line at the connecting port component on the sensor body can be turned before and after assembly through the arrangement of the structure, and the position of the rotating sensor body and the connecting port component is fixed and limited, which is convenient for subsequent wiring of the connecting line and reduces the risk of damage.

[0015] 2. Compared with the prior art, the detection probe is composed of a base body and an alloy outer shell, the use of ceramic material and nickel-based alloy material can improve the high-temperature resistance of the device, so that the device can work stably for a long time in a high-temperature environment, meet the application requirements in a high-temperature environment, and the nano coating is coated on the outermost layer of the detection probe, which prevents dust and other impurities in the high-temperature environment from invading and adhering, and ensures the long-term stable operation of the detection probe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first perspective three-dimensional structure schematic view of the utility model.

[0017] Figure 2The utility model discloses a three -dimensional dismounting structure schematic diagram of mounting plate.

[0018] Figure 3 The utility model discloses a three -dimensional structure schematic diagram of partial section of view.

[0019] Figure 4 The utility model discloses a three -dimensional dismounting structure schematic diagram of detection probe.

[0020] Figure 5 The utility model discloses a three -dimensional structure schematic diagram of second visual angle.

[0021] The sign is: 1, connecting casing, 2, sensor body, 3, connecting mouth part, 4, detection probe, 41, base body, 42, alloy shell, 43, nanometer coating, 5, high frequency oscillator, 6, electromagnetic induction layer, 7, mounting plate, 8, threaded connection hole, 9, connecting groove, 10, extruding spring, 11, first annular block, 12, recess, 13, second annular block, 14, convex block, 15, pilot lamp, 16, rubber gasket. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0023] Embodiment 1

[0024] As the accompanying drawings Figures 1 to 4The inductive sensor shown, including connecting shell 1, connecting shell 1 outside limit rotatingly connected with mounting plate 7, the setting of mounting plate 7 can be used to fix and install the connection of the whole device, mounting plate 7 is provided with connecting groove 9, a plurality of extrusion springs 10 are arranged in connecting groove 9 at equal intervals in a circular manner, one first annular block 11 is arranged at the end of a plurality of extrusion springs 10 away from the bottom wall in connecting groove 9, a plurality of recesses 12 are arranged on the surface of the first annular block 11 away from the extrusion springs 10 at equal intervals in a circular manner, the second annular block 13 is fixedly arranged outside the connecting shell 1, a plurality of protruding blocks 14 are arranged on the surface of the second annular block 13 at equal intervals, and the recesses 12 arranged on the first annular block 11 are clamped and connected with the protruding blocks 14 arranged on the surface of the second annular block 13 by extruding the first annular block 11 through a plurality of extrusion springs 10, so as to realize the limiting fixation of the connecting shell 1, the sensor body 2 fixedly connected with the connecting shell 1 and the connecting port component 3. The setting of this structure can turn the connecting line at the connecting port component 3 on the sensor body 2 before and after assembly, and limit and fix the position of the sensor body 2 and the connecting port component 3 after turning, which is convenient for subsequent wiring of the connecting line and reduces the risk of damage.

[0025] Embodiment 2

[0026] On the basis of embodiment 1, the scheme in embodiment 1 is further refined and introduced in combination with the specific working mode as follows: Figures 1 to 5 As shown, see the following description in detail:

[0027] As a preferred embodiment, rubber pads 16 are fixedly arranged on the surface of the first annular block 11 and on the side of the recess 12, which can increase the friction between the first annular block 11 and the second annular block 13 and improve the stability of the position fixation of the sensor body 2 and the connecting port component 3 after turning adjustment. Then a plurality of avoiding holes are arranged on the surface of the rubber pad 16, and the positions of the avoiding holes correspond to the positions of the recesses 12 above, respectively, so that the protruding blocks 14 on the second annular block 13 can pass through the avoiding holes and be clamped and connected with the recesses 12 arranged on the first annular block 11.

[0028] As a preferred implementation, the sensor body 2 is arranged at one end of the connecting shell 1, and the connecting port component 3 is arranged on the sensor body 2, so that the connecting port component 3 can be connected with an external circuit, and the indicator light 15 is arranged on the surface of the sensor body 2, so that the on-off state of the device can be displayed; the detection probe 4 is arranged at the other end of the connecting shell 1, the electromagnetic induction layer 6 is arranged at the bottom end of the detection probe 4, the high-frequency oscillator 5 is arranged in the detection probe 4, and the circuit panel is arranged in the sensor body 2; the amplification output circuit and the voltage stabilizing filter circuit are arranged on the circuit panel, the amplification output circuit is electrically connected with the voltage stabilizing filter circuit, the voltage stabilizing filter circuit is electrically connected with the high-frequency oscillator 5, the high-frequency oscillator 5 generates an alternating magnetic field, when a metal target approaches the alternating magnetic field and reaches an induction distance, eddy currents are generated in the metal, the magnetic field generated by the eddy currents affects the original magnetic field in the device, causing the high-frequency oscillator 5 to attenuate and stop oscillating, and then the voltage stabilizing filter circuit is stabilized and transmitted to the amplification output circuit, and then the amplification circuit processes and converts the signal into a switching signal, triggers the driving control device, and realizes the non-contact detection function.

[0029] As a preferred implementation, the mounting plate 7 is provided with a threaded connection hole 8 on both sides, and bolts are threadedly arranged in the two threaded connection holes 8.

[0030] As a preferred implementation, the detection probe 4 comprises a base body 41, an alloy outer shell 42 and a nano coating 43, the alloy outer shell 42 is arranged outside the base body 41, and the nano coating 43 is coated outside the alloy outer shell 42; the base body 41 is made of ceramic material, and the alloy outer shell 42 is made of nickel-based alloy material; the use of ceramic material and nickel-based alloy material can improve the high-temperature resistance of the device, so that the device can work stably for a long time in a high-temperature environment, and meet the application requirements in a high-temperature environment; the nano coating 43 is made of polydimethylsiloxane material, which prevents dust and other impurities from invading and adhering in a high-temperature environment, and ensures the long-term stable operation of the detection probe 4.

[0031] The working process of the device is as follows: when the device is used, the device can be placed in the installation position, and then the bolts are threadedly arranged in the threaded connection holes 8, so that the device is fixed and arranged.

[0032] When the sensor body 2 and the connecting port component 3 arranged on the sensor body 2 need to be adjusted in angle, the sensor body 2 can be directly rotated, then the first annular block 11 is extruded by the plurality of extrusion springs 10, and then the recess 12 arranged on the first annular block 11 is clamped and connected with the protruding block 14 distributed on the surface of the second annular block 13, so that the connecting shell 1 and the sensor body 2 and the connecting port component 3 fixedly connected with the connecting shell 1 are limited and fixed. The structure can be arranged before and after assembly, and the connecting line at the connecting port component 3 on the sensor body 2 can be turned, and the position of the rotated sensor body 2 and the connecting port component 3 is limited and fixed, which is convenient for subsequent wiring of the connecting line, reduces the damage risk, and the working principle of the inductive sensor is as above.

Claims

1. Inductive sensor comprising a connection housing (1), characterized in that: The connecting housing (1) is rotatably connected to a mounting plate (7) on its outer side. A connecting groove (9) is provided on the mounting plate (7). Several compression springs (10) are arranged in a circular pattern at equal intervals in the connecting groove (9). The ends of the compression springs (10) away from the bottom wall of the connecting groove (9) are connected to a first annular block (11). Several grooves (12) are arranged in a circular pattern at equal intervals on the side surface of the first annular block (11) away from the compression springs (10). A second annular block (13) is fixedly provided on the outer side of the connecting housing (1). Several protrusions (14) are arranged at equal intervals on the bottom surface of the second annular block (13).

2. The inductive sensor of claim 1, wherein: A rubber pad (16) is fixedly provided on the surface of the first annular block (11) and on the side where the groove (12) is opened. The surface of the rubber pad (16) is provided with a plurality of clearance holes corresponding to the groove (12).

3. The inductive sensor of claim 1, wherein: A sensor body (2) is installed at one end of the connecting housing (1), a connection port component (3) is provided on the sensor body (2), and an indicator light (15) is provided on the surface of the sensor body (2).

4. The inductive sensor of claim 1, wherein: The other end of the connecting housing (1) is connected to a detection probe (4), the bottom of the detection probe (4) is provided with an electromagnetic induction layer (6), and a high-frequency oscillator (5) is provided inside the detection probe (4).

5. The inductive sensor according to claim 1, characterized in that: The mounting plate (7) has a threaded connection hole (8) on both sides, and bolts can be threaded through both threaded connection holes (8).

6. The inductive sensor according to claim 3, characterized in that: The sensor body (2) is provided with a mounting circuit panel inside. The circuit panel is provided with an amplification output circuit and a voltage stabilization filter circuit. The amplification output circuit and the voltage stabilization filter circuit are electrically connected. The voltage stabilization filter circuit is electrically connected to the high-frequency oscillator (5).

7. The inductive sensor according to claim 4, characterized in that: The detection probe (4) includes a substrate (41), an alloy shell (42), and a nano-coating (43). The substrate (41) is provided with an alloy shell (42) on its outer side, and the alloy shell (42) is coated with a nano-coating (43). The substrate (41) is made of ceramic material, the alloy shell (42) is made of nickel-based alloy material, and the nano-coating (43) is made of polydimethylsiloxane material.

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