An adjustable induction switch

Abstract

The utility model discloses an adjustable inductive switch, comprising a first shell, a second shell, a base and a push rod, wherein the inner cavity of the first shell is used to install electronic components; the second shell is arranged at one end of the first shell, and a mounting portion is arranged outside the second shell, and the mounting position can be adjusted by the mounting portion; the base is arranged in the inner cavity of the second shell, and the base is provided with a sensing channel and a sensor, and the sensor is electrically connected to the electronic component; one end of the push rod is movably arranged in the sensing channel, and the other end extends outside the second shell; the sensor can detect the displacement of the push rod in the sensing channel. The adjustable inductive switch can conveniently adjust the sensing distance, has high precision, and the sensing signal is not easily interfered.

Description

Technical Field

[0001] The utility model relates to the technical field of induction switches, in particular to an adjustable induction switch. Background Art

[0002] At present, industrial automation equipment mainly uses proximity switches to measure displacement. There are certain problems with proximity switches in actual use, such as low accuracy, the need to adjust the sensing distance after installation, which makes the operation cumbersome, and the use of the inductive principle, which makes the proximity switch susceptible to external metal interference and false triggering of signals.

[0003] Therefore, it is urgent to develop a new type of switch for measuring displacement to solve related technical problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an adjustable induction switch, which can conveniently adjust the induction distance, has high precision, and the induction signal is not easily disturbed.

[0005] According to the first aspect of the present invention, an adjustable induction switch includes:

[0006] A first housing, used for mounting electronic components;

[0007] A second shell is disposed at one end of the first shell, and a mounting portion is disposed outside the second shell, and a mounting position can be adjusted through the mounting portion;

[0008] A base, arranged in the inner cavity of the second shell, the base is provided with a sensing channel and a sensor, and the sensor is electrically connected to the electronic component;

[0009] A push rod, one end of which is movably disposed in the sensing channel and the other end of which extends outside the second housing;

[0010] Wherein, the sensor is capable of detecting the displacement of the push rod position in the sensing channel.

[0011] An adjustable inductive switch according to an embodiment of the utility model has at least the following beneficial effects: the adjustable inductive switch can adjust the inductive distance through an external mounting structure, and the operation is simple. At the same time, the inductive element is arranged inside the shell, and the displacement of the push rod is detected by the sensor to realize displacement measurement. It can also be connected to an external system through electronic components to judge the displacement state of the external device, effectively isolating the interference of external metal structures or electromagnetic signals, and has high measurement accuracy.

[0012] According to some embodiments of the present invention, a connector is provided at one end of the first shell away from the second shell, and the connector is used to electrically connect the electronic component and the cable.

[0013] According to some embodiments of the present invention, the connector is an aviation plug.

[0014] According to some embodiments of the present invention, the mounting portion is an external thread structure outside the second shell.

[0015] According to some embodiments of the present invention, the inner cavity of the second shell is provided with a guide channel, and the push rod is at least partially located in the guide channel.

[0016] According to some embodiments of the utility model, the second shell is provided with an elastic member, the push rod is provided with a first limiting portion, one end of the elastic member is provided at the first limiting portion and can reset the push rod.

[0017] According to some embodiments of the utility model, the second shell is further provided with an abutment portion, and the push rod is further provided with a second limiting portion, the abutment portion is located in the inner cavity of the second shell, and the second limiting portion is provided in the inner cavity of the second shell and is located on the side of the abutment portion close to the first shell.

[0018] According to some embodiments of the present invention, the electronic component is provided with an indicator light, and the indicator light can provide feedback on the sensing action of the sensor.

[0019] According to some embodiments of the present invention, a sliding block is provided at one end of the push rod located in the sensing channel.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 The figure is a schematic diagram of the interior of an adjustable induction switch according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] A first housing 100, an electronic component 110, and an indicator light 111;

[0025] The second housing 200 , the base 210 , the sensing channel 211 , the sensor 212 , the elastic member 220 , and the abutting portion 230 ;

[0026] Push rod 300, slider 310, first position limiting portion 320, second position limiting portion 330;

[0027] Connector 400. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Currently, industrial automation equipment on the market mainly uses proximity switches to measure displacement. There are certain problems in the actual use of proximity switches, such as low precision. The precision of proximity switches is mostly a few millimeters, and the sensing distance needs to be adjusted after the switch is installed. The operation is relatively complicated. For some installation scenarios, the accuracy cannot be guaranteed; such as interference problems, proximity switches mostly use the inductive principle to sense the distance of metal parts, which is easily interfered by other external metal structures or electromagnetic signals, and easily cause false triggering signals.

[0033] In view of the related technical problems, the utility model proposes an adjustable induction switch, which adjusts the induction distance through an external mounting structure, is easy to operate, and at the same time, the induction element is arranged inside the shell, and the displacement of the push rod is detected by the sensor to achieve displacement measurement, and can be connected to the external system through electronic components to determine the displacement state of the external device. The adjustable induction switch of the utility model effectively isolates the interference of external metal structures or electromagnetic signals, and has high measurement accuracy.

[0034] Reference Figure 1 The adjustable induction switch includes a first housing 100 and a second housing 200. The second housing 200 is arranged at one end of the first housing 100. The second housing 200 and the inner cavity of the first housing 100 are connected. One end of the second housing 200 is provided with an external thread or a buckle or other mounting structure. When one end of the second housing 200 is provided with an external thread, the inner wall of the first housing 100 is provided with an internal thread to match the second housing 200 for installation; when one end of the second housing 200 is provided with a buckle, the first housing 100 is provided with a slot to match the second housing 200 for installation.

[0035] It is understandable that the inner cavity of the first shell 100 is used to install the electronic component 110, and the electronic component 110 is generally provided with a connecting wire and a circuit board, etc., and the circuit board has a processing circuit capable of receiving the signal of the sensing element. The second shell 200 is used to install the sensing element, which can effectively isolate the interference of the external metal structure or electromagnetic signal. The outside of the second shell 200 is provided with a mounting portion. In the embodiment provided by the utility model, the mounting portion is an external thread structure, and the position where the sensing switch needs to be installed corresponds to the internal thread structure, so that the sensing switch can be installed. At the same time, this structure facilitates the adjustment of the installation position and realizes precision fine-tuning.

[0036] It is understandable that a connector 400 is provided at one end of the first housing 100 away from the second housing 200, and the connector 400 is used to electrically connect the electronic component 110 and the cable. The connector 400 is generally an aviation plug, which is used to transmit the signal of the sensing element to the external system.

[0037] Reference Figure 1 The adjustable inductive switch further comprises a base 210 and a push rod 300. The base 210 is disposed in the inner cavity of the second housing 200, wherein the base 210 is provided with a sensing channel 211 and a sensor 212, and the sensor 212 is electrically connected to the electronic component 110. One end of the push rod 300 is movably disposed in the sensing channel 211, and the other end extends outside the second housing 200, and the sensor 212 can detect the displacement of the push rod 300 in the sensing channel 211.

[0038] It is understandable that the inner cavity of the second shell 200 is provided with a guide channel, and the push rod 300 is at least partially located in the guide channel. The setting of the guide channel can make the movement of the push rod 300 more stable, prevent the push rod 300 from shaking during the movement, and effectively improve the detection accuracy.

[0039] It is understandable that the second housing 200 is further provided with an elastic member 220, and the push rod 300 is correspondingly provided with a first limit portion 320, one end of the elastic member 220 is provided at the first limit portion 320, and the other end abuts against the inner wall of the second housing 200, and the elastic member 220 can reset the push rod 300. A slider 310 is further provided at one end of the push rod 300 located in the sensing channel 211, and the provision of the slider 310 can effectively improve the sensing sensitivity of the sensor 212 inside the second housing 200.

[0040] It can be understood that the second shell 200 is also provided with an abutment portion 230, and the push rod 300 is also provided with a second limiting portion 330. The abutment portion 230 is located in the inner cavity of the second shell 200. The second limiting portion 330 is provided in the inner cavity of the second shell 200 and is located on the side of the abutment portion 230 close to the first shell 100. The abutment portion 230 can abut against the second limiting portion 330 to prevent the push rod 300 from falling out of the second shell 200.

[0041] It is understandable that the electronic component 110 is provided with an indicator light 111, which is at least partially located outside the first housing 100, and the indicator light 111 can provide feedback on the sensing action of the sensor 212. When the sensor 212 detects the slider 310 of the push rod 300, the indicator light 111 lights up.

[0042] It should be noted that when the external mechanism drives the push rod 300 to change its displacement, the push rod 300 will drive the internal slider 310 to move in the sensing channel 211. The sensor 212 can detect the displacement of the slider 310 and transmit the signal to the external system through the electronic component 110 and the connector 400, thereby determining the displacement of the external device.

[0043] It should be noted that, for most inductive switches currently on the market, the displacement they usually measure is determined when the switch is designed, and can only be directly installed in actual installation, and cannot be adjusted. When there is an assembly deviation between the structures in the actual installation environment, it is easy to cause the switch to be accidentally touched or unable to be triggered. The inductive switch provided by the utility model has an adjustable mounting portion, i.e., an external thread, on the outside of the second housing 200, which can adjust the overall installation position of the switch according to actual conditions, ensuring that the switch can be effectively triggered, and avoiding the triggering problem caused by the assembly deviation in the installation environment.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An adjustable induction switch, characterized in that: include: A first housing, wherein the inner cavity is used for mounting electronic components; A second shell is disposed at one end of the first shell, and a mounting portion is disposed outside the second shell, and a mounting position can be adjusted through the mounting portion; A base, arranged in the inner cavity of the second shell, the base is provided with a sensing channel and a sensor, and the sensor is electrically connected to the electronic component; A push rod, one end of which is movably disposed in the sensing channel and the other end of which extends outside the second housing; Wherein, the sensor is capable of detecting the displacement of the push rod in the sensing channel.

2. The adjustable inductive switch according to claim 1, characterized in that: A connector is provided at one end of the first shell away from the second shell, and the connector is used to electrically connect the electronic component and the cable.

3. The adjustable inductive switch according to claim 2, characterized in that: The connector is an aviation plug.

4. The adjustable inductive switch according to claim 1, characterized in that: The mounting portion is an external thread structure on the outside of the second shell.

5. The adjustable inductive switch according to claim 1, characterized in that: The inner cavity of the second shell is provided with a guide channel, and the push rod is at least partially located in the guide channel.

6. The adjustable inductive switch according to claim 1, characterized in that: The second housing is provided with an elastic member, the push rod is provided with a first limiting portion, one end of the elastic member is provided at the first limiting portion and can reset the push rod.

7. The adjustable inductive switch according to claim 6, characterized in that: The second shell is further provided with an abutment portion, and the push rod is further provided with a second limiting portion. The abutment portion is located in the inner cavity of the second shell, and the second limiting portion is provided in the inner cavity of the second shell and is located on a side of the abutment portion close to the first shell.

8. The adjustable inductive switch according to claim 1, characterized in that: The electronic component is provided with an indicator light, and the indicator light can give feedback to the sensing action of the sensor.

9. The adjustable inductive switch according to claim 1, characterized in that: A sliding block is provided at one end of the push rod located in the sensing channel.

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