Proximity switch with protection structure

Abstract

The utility model provides a proximity switch with a protection structure, which relates to the field of proximity switches and comprises a shell, a circuit base and an induction rod, the circuit base is arranged at the bottom inside the shell, the induction rod is arranged at one end of the circuit base, a protection sleeve is arranged on the outer side of one end of the circuit base, and a rubber cap is arranged at one end of the induction rod. The sensing end of the device can be protected to a certain degree through the rubber cap, the influence of external impact on the sensing end can be effectively absorbed and reduced through the rubber cap, the damage risk of the sensing end is reduced, and the sensing end can be prevented from being damaged. And meanwhile, the rubber cap can seal the sensing end to a certain extent to prevent moisture, dust and other pollutants from being attached to the surface of the sensing end to influence normal work, so that the service life of the sensing end of the proximity switch is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of proximity switches, in particular to a proximity switch with a protection structure. Background Art

[0002] A proximity switch is a sensor that uses various principles for induction, used to detect the distance between an object or a target object and the sensor. It can monitor the presence or departure of an object from a certain position and control equipment or perform corresponding operations by outputting signals. Most of the existing proximity switches are Figure 1 As shown, after being connected to an external power supply structure through a circuit base, power is supplied to the internal induction rod. After the induction rod is energized, it uses principles such as magnetic field, electromagnetic induction, or capacitance. When the detected object approaches, they will change the characteristics of the electric or magnetic field around the sensor, thereby triggering the sensor to output a signal. The problems existing in the above technical solutions are that the induction end of the proximity switch is directly exposed outside. Therefore, when the induction end is subjected to an external impact, it will cause inward depression. After the induction end is impacted, it may cause damage or damage to the sensor components, affecting its normal operation or accurate performance. At the same time, the depression may change the shape and position of the induction end, thereby interfering with the signal transmission and detection functions of the sensor, resulting in misjudgment or interference. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the following problems existing in the prior art: The induction end of the proximity switch is directly exposed outside. Therefore, when the induction end is subjected to an external impact, it will cause inward depression. After the induction end is impacted, it may cause damage or damage to the sensor components, affecting its normal operation or accurate performance. At the same time, the depression may change the shape and position of the induction end, thereby interfering with the signal transmission and detection functions of the sensor, resulting in misjudgment or interference.

[0004] To solve the problems existing in the prior art, the utility model provides a proximity switch with a protection structure, which includes a housing, a circuit base, and an induction rod. A circuit base is provided at the bottom inside the housing. One end of the circuit base is provided with an induction rod. A protective sleeve is provided outside one end of the circuit base. A rubber cap is provided at one end of the induction rod. An adjusting sleeve is provided on the outside of the housing through a threaded structure. A power cord is provided at the bottom end of the housing.

[0005] Further, a waterproof sleeve is provided outside the power cord at the bottom end of the housing. The waterproof sleeve is made of rubber material, and the waterproof effect of the connection structure area between the power cord and the housing can be improved through the waterproof sleeve.

[0006] Further, the bottom end of the circuit base is connected to the power cord, and the top end of the circuit base is connected to the induction rod. The circuit base is used for power transmission.

[0007] Furthermore, a groove is provided on the outer side of the top of the induction rod, and the bottom end of the induction rod is connected to the output end of the circuit base. The groove provided on the outer side of the induction rod facilitates the fixation of the rubber cap.

[0008] Furthermore, four groups of guiding grooves are provided around the outer side of the protective sleeve. Through the guiding grooves, it is convenient for the staff to sleeve the induction rod.

[0009] Furthermore, a through hole is provided on the top of the rubber cap. The through hole provided on the top of the rubber cap can prevent the induction effect of the rubber cap on the induction rod from being affected.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] The present utility model can protect the induction end of the device through the rubber cap. The rubber cap can effectively absorb and reduce the impact of external shocks on the induction end, reduce the risk of damage to the induction end. At the same time, the rubber cap can seal the induction end to prevent moisture, dust and other pollutants from adhering to the surface of the induction end and affecting its normal operation, thereby prolonging the service life of the induction end of the proximity switch.

[0012] The present utility model can wrap the whole induction rod through the protective sleeve, thereby increasing the stability during the installation of the induction rod inside the proximity switch, preventing it from loosening, improving the overall stability. At the same time, it can reduce the influence of external interference on the induction rod, reduce the possibility of mis-triggering, improve the accuracy of the proximity switch. Secondly, it can also provide a certain degree of anti-impact protection for the induction rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional exploded structural schematic diagram of the prior art;

[0014] Figure 2 is a three-dimensional exploded structural schematic diagram of the present utility model;

[0015] Figure 3 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Reference numerals: 1, housing; 2, circuit base; 3, induction rod; 4, protective sleeve; 5, rubber cap; 6, adjusting sleeve; 7, power cord. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention.

[0018] The specific embodiments of the present utility model will be described below in conjunction with the accompanying drawings.

[0019] Embodiment 1

[0020] As Figures 1 - 3 shown, a proximity switch with a protective structure includes a housing 1, a circuit base 2, and an induction rod 3. A circuit base 2 is provided at the bottom inside the housing 1. One end of the circuit base 2 is provided with an induction rod 3. A protective sleeve 4 is provided outside one end of the circuit base 2. One end of the induction rod 3 is provided with a rubber cap 5. An adjusting sleeve 6 is provided on the outside of the housing 1 through a threaded structure. A power cord 7 is provided at the bottom end of the housing 1.

[0021] Working principle description: After the staff connects the whole device to an external power supply through the power cord 7, the power cord 7 can transmit the power to the circuit base 2. The circuit base 2 transmits the power to the inside of the induction rod 3. After the induction rod 3 is powered on, it generates a magnetic field, electromagnetic induction, or capacitance. When an object approaches, the electric or magnetic field around the sensor will change to a certain extent, thereby triggering the sensor to output a signal to the control device, so as to achieve the control effect. The rubber cap 5 can provide a certain degree of protection for the induction end of the device. The rubber cap 5 can effectively absorb and reduce the impact of external shocks on the induction end, reducing the risk of damage to the induction end. At the same time, the rubber cap 5 can seal the induction end to prevent moisture, dust, and other contaminants from adhering to the surface of the induction end and affecting its normal operation. The protective sleeve 4 can wrap the whole induction rod 3, thereby increasing the stability of the induction rod 3 during the installation process inside the proximity switch, preventing it from loosening, and at the same time reducing the influence of external interference on the induction rod 3 and reducing the possibility of false triggering.

[0022] The housing 1 is mainly used to protect the overall structure. When selected, a waterproof sleeve is provided outside the power cord 7 at the bottom end of the housing 1, and the waterproof sleeve is made of rubber material.

[0023] The circuit base 2 is mainly used to transmit the power. When selected, the bottom end of the circuit base 2 is connected to the power cord 7, and the top end of the circuit base 2 is connected to the induction rod 3.

[0024] The induction rod 3 is mainly used to generate a magnetic field or electromagnetic induction after being powered on. When selected, a groove is provided on the outside of the top of the induction rod 3, and the bottom end of the induction rod 3 is connected to the output end of the circuit base 2.

[0025] The protective sleeve 4 is mainly used to protect the induction rod 3. When selected, four groups of guiding grooves are provided around the outside of the protective sleeve 4.

[0026] The rubber cap 5 is mainly used to protect the induction head at one end of the induction rod 3. When selected, a through hole is provided at the top of the rubber cap 5.

[0027] The adjusting screw sleeve 6 is mainly used to fix the housing 1 and the whole device to a specified area. When selecting, it can be conventionally selected from the prior art according to needs.

[0028] The power cord 7 is mainly used for power transmission to the device. When selecting, it can be conventionally selected from the prior art according to needs.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A proximity switch with a protective structure, comprising a housing (1), a circuit seat (2) and a sensing rod (3), characterized in that: A circuit seat (2) is provided at the bottom of the shell (1), a sensing rod (3) is provided at one end of the circuit seat (2), a protective sleeve (4) is provided on the outside of one end of the circuit seat (2), a rubber cap (5) is provided on one end of the sensing rod (3), an adjusting screw sleeve (6) is provided on the outside of the shell (1) through a threaded structure, and a power cord (7) is provided at the bottom of the shell (1).

2. The proximity switch with a protective structure according to claim 1, characterized in that: The bottom end of the housing (1) is located outside the power cord (7) and is provided with a waterproof sleeve, which is made of rubber.

3. The proximity switch with a protective structure according to claim 1, characterized in that: The bottom end of the circuit seat (2) is connected to a power line (7), and the top end of the circuit seat (2) is connected to a sensing rod (3).

4. The proximity switch with a protective structure according to claim 1, characterized in that: A groove is provided on the outer side of the top of the sensing rod (3), and the bottom end of the sensing rod (3) is connected to the output end of the circuit seat (2).

5. The proximity switch with a protective structure according to claim 1, characterized in that: Four groups of guide grooves are arranged around the outer side of the protective sleeve (4).

6. The proximity switch with a protective structure according to claim 1, characterized in that: The top of the rubber cap (5) is provided with a through hole.

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