Elastic proximity switch with prolonged service life

Abstract

The utility model provides an elastic proximity switch with prolonged service life, which comprises a base, an anti-collision outer sleeve, an anti-collision top plate, a mounting assembly and a proximity switch body, the upper side of the base is elastically connected with the anti-collision outer sleeve, and the mounting assembly is mounted in the anti-collision outer sleeve. Compared with the prior art, the proximity switch has the following beneficial effects that the arrangement of the anti-collision top plate, the base and the anti-collision outer sleeve can greatly improve the protection of the proximity switch body, so that when the proximity switch body is impacted in all directions, the external impact force cannot directly act on the proximity switch body, the proximity switch body cannot be greatly impacted and influenced, and the safety of the proximity switch is improved. According to the proximity switch, the mounting assembly is arranged, the proximity switch body is mounted in the mounting assembly, and the front end of the proximity switch body is arranged in the plugging ring, so that an object is close to the front end of the proximity switch body and cannot directly act on the front end of the proximity switch body.

Description

Technical Field

[0001] The utility model belongs to the technical field of proximity switches, and in particular relates to an elastic proximity switch with a prolonged service life. Background Art

[0002] A proximity switch, also known as a non-contact travel switch, is a sensor used in industrial automation control. It realizes detection and control functions by sensing the proximity between an object (such as metal) and the sensor. It can generate a trigger signal without direct contact. Its working principle is mainly based on the principles of inductance, capacitance, magnetic induction, photoelectric effect, etc. Specifically, when the detected object approaches the proximity switch, the internal circuit parameters of the switch will change. The resulting electrical signal changes can be used to determine the presence or position of the object, thereby achieving the purpose of controlling the operation of the equipment.

[0003] In industrial production, equipment is often subject to vibration and impact, and most existing proximity switches are installed directly or on equipment with the aid of some anti-vibration brackets. When installed directly, they can only rely on the anti-vibration performance of the proximity switch itself, and the anti-vibration performance of some anti-vibration brackets is still insufficient. Long-term vibration may cause damage to the internal structure of the proximity switch, affecting its normal operation and service life. Therefore, we hope to design an elastic proximity switch with a new structure to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a flexible proximity switch with a longer service life, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: an elastic proximity switch with improved service life, comprising: a base, an anti-collision jacket, an anti-collision top plate, a mounting assembly and a proximity switch body, the upper side of the base is elastically connected with the anti-collision jacket, the interior of the anti-collision jacket is equipped with the mounting assembly, the upper end of the anti-collision jacket is elastically connected with the anti-collision top plate, and the upper front side of the mounting assembly is equipped with the proximity switch body;

[0006] The installation assembly includes a first installation tube, a second installation tube and a sealing ring. The first installation tube is integrally provided with the second installation tube on the front side of the upper end. The sealing ring is installed at the front end of the second installation tube by screws.

[0007] A first limiting ring is fixed to the front outer wall of the proximity switch body, a second limiting ring is fixed to the rear side of the proximity switch body, and a switch wire is arranged at the rear end of the proximity switch body.

[0008] As a preferred embodiment, a through hole is formed by penetrating downwardly through the middle of the upper surface of the base, a notch is opened on the rear side of the lower end of the base, the front end of the notch is connected to the lower end of the through hole, a plurality of springs are fixed to the edge of the upper surface of the base, the upper end of the base is connected to the lower edge of the anti-collision jacket through the plurality of springs, and the length of the spring is less than 20 mm.

[0009] As a preferred embodiment, a plurality of springs 2 are fixed to the edge of the lower surface of the anti-collision top plate, and the specifications of the springs 2 are the same as those of the springs 1. The anti-collision top plate, the base and the anti-collision jacket are all made of a butyl rubber material. The arrangement of the anti-collision top plate, the base and the anti-collision jacket can greatly enhance the protection of the proximity switch body, and thus when impacted in all directions, the external impact force will not directly act on the proximity switch body, which prevents the proximity switch body from being affected by a larger impact.

[0010] As a preferred embodiment, a cavity 1 is provided at the lower side of the interior of the installation tube 1, and a cavity 2 is provided inside the installation tube 2, and the inner diameter of the cavity 2 is larger than the inner diameter of the cavity 1.

[0011] As a preferred embodiment, the upper end of the first cavity is connected to the rear end of the second cavity, the front end of the second cavity is provided with an installation cavity, and the sealing ring is fixed inside the installation cavity by screws.

[0012] As a preferred embodiment, the front end of the sealing ring is flush with the front end of the mounting tube, the sealing ring is fixed to the front end of the proximity switch body, the front end of the proximity switch body is placed inside the front end of the sealing ring, and the front end of the proximity switch is flush with the front end of the sealing ring. This ensures that when an object approaches the front end of the proximity switch body, it will not directly contact the front end of the proximity switch body. If mechanical contact occurs, it will be with the front end of the sealing ring, and will not directly contact the front end of the proximity switch body, which helps to protect the proximity switch body from collisions with external objects.

[0013] As a preferred embodiment, the outer diameter of the limiting ring 1 is the same as the outer diameter of the limiting ring 2, the outer wall of the limiting ring 1 is in sliding contact with the inner wall of the cavity 2, and the outer wall of the limiting ring 2 is in sliding contact with the inner wall of the cavity 2;

[0014] The first limiting ring, the second limiting ring and the sealing ring are all made of an elastic rubber material.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are as follows: the anti-collision top plate, the base and the anti-collision jacket are arranged, and the anti-collision top plate and the anti-collision jacket made of elastic material can offset the collision force, which can greatly improve the protection of the proximity switch body, and then when it is hit in all directions, the external impact force will not directly act on the proximity switch body, so that the proximity switch body will not be affected by a large impact;

[0016] By setting up the installation component, the proximity switch body is installed inside the installation component, and the front end of the proximity switch body is placed inside the blocking ring, so that even if an object approaches the front end of the proximity switch body, it will not directly act on the front end of the proximity switch body. Limit ring 1 and limit ring 2 are installed on the proximity switch body. Limit ring 1 and limit ring 2 made of elastic rubber material can reduce the amount of vibration transmitted from the installation component to the proximity switch body, thereby protecting the proximity switch body. At the same time, the part of the rear end of the proximity switch body connected to the switch wire is installed inside the installation component, which effectively prevents the influence of the external environment and greatly improves the service life of the entire proximity switch body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an elastic proximity switch with a prolonged service life.

[0019] Figure 2 It is a schematic diagram of a mounting assembly structure of an elastic proximity switch with a prolonged service life according to the utility model.

[0020] Figure 3 The utility model is a schematic diagram showing the connection between a proximity switch body and a first limiting ring and a second limiting ring of an elastic proximity switch with a prolonged service life.

[0021] Figure 4 It is a schematic diagram of a base structure of an elastic proximity switch with a prolonged service life according to the utility model.

[0022] In the figure, 100 is a base, 110 is a through hole, and 120 is a notch;

[0023] 200-anti-collision jacket;

[0024] 300-anti-collision top plate;

[0025] 400-installation assembly, 410-installation pipe 1, 420-installation pipe 2, 430-sealing ring;

[0026] 500- proximity switch body, 510- limit ring 1, 520- limit ring 2, 530- switch wire. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 4 The utility model provides a technical solution: an elastic proximity switch with improved service life, comprising: a base 100, an anti-collision jacket 200, an anti-collision top plate 300, a mounting assembly 400 and a proximity switch body 500, the upper side of the base 100 is elastically connected with the anti-collision jacket 200, the interior of the anti-collision jacket 200 is installed with the mounting assembly 400, the upper end of the anti-collision jacket 200 is elastically connected with the anti-collision top plate 300, and the upper front side of the mounting assembly 400 is installed with the proximity switch body 500;

[0029] The mounting assembly 400 includes a mounting tube 1 410, a mounting tube 2 420 and a sealing ring 430. The mounting tube 2 420 is integrally provided on the front side of the upper end of the mounting tube 1 410, and the sealing ring 430 is installed on the front end of the mounting tube 2 420 by screws.

[0030] A first limiting ring 510 is fixed to the front outer wall of the proximity switch body 500 , a second limiting ring 520 is fixed to the rear side of the proximity switch body 500 , and a switch wire 530 is disposed at the rear end of the proximity switch body 500 .

[0031] See also Figure 1 A through hole 110 is formed by penetrating downwardly through the middle of the upper surface of the base 100, a notch 120 is opened on the rear side of the lower end of the base 100, and the front end of the notch 120 is connected to the lower end of the through hole 110. A plurality of springs 1 are fixed to the edge of the upper surface of the base 100, and the upper end of the base 100 is connected to the lower edge of the anti-collision jacket 200 through the plurality of springs 1, and the length of the spring 1 is less than 20 mm.

[0032] A plurality of springs 2 are fixed to the edge of the lower surface of the anti-collision top plate 300, and the specifications of the springs 2 are the same as those of the springs 1. The anti-collision top plate 300, the base 100 and the anti-collision jacket 200 are all made of a butyl rubber material. The arrangement of the anti-collision top plate 300, the base 100 and the anti-collision jacket 200 can greatly enhance the protection of the proximity switch body 500, and thus when impacted from all directions, the external impact force will not directly act on the proximity switch body 500, which prevents the proximity switch body 500 from being affected by a larger impact.

[0033] As the first embodiment of the utility model, in actual use, when an external object or the vibration of the device itself acts on the base 100 (in actual use, the base 100 is directly mounted on the device, and the rest of the base 100 is not in direct contact with the device), since the base 100 is connected to the lower end of the anti-collision jacket 200 through a plurality of springs not larger than 20 mm, it can greatly offset the vibration from the device and the collision of external objects. If the anti-collision top plate 300 and the anti-collision jacket 200 collide with external objects, the anti-collision top plate 300 and the anti-collision jacket 200 made of elastic material can offset the collision force, which can greatly enhance the protection of the proximity switch body 500. Furthermore, when impacted in all directions, the external impact force will not directly act on the proximity switch body 500, which prevents the proximity switch body 500 from being affected by a large impact.

[0034] See also Figures 1 to 4 A cavity one is provided at the lower side of the interior of the mounting tube one 410 , and a cavity two is provided inside the mounting tube two 420 , and the inner diameter of the cavity two is greater than the inner diameter of the cavity one.

[0035] The upper end of the first cavity is connected to the rear end of the second cavity, and a mounting cavity is provided at the front end of the second cavity. The sealing ring 430 is fixed inside the mounting cavity by screws.

[0036] The front end of the sealing ring 430 is flush with the front end of the mounting tube 420. The sealing ring 430 is fixed to the front end of the proximity switch body 500. The front end of the proximity switch body 500 is placed inside the front end of the sealing ring 430. The front end of the proximity switch is flush with the front end of the sealing ring 430. This ensures that when an object approaches the front end of the proximity switch body 500, it will not directly contact the front end of the proximity switch body 500. If mechanical contact occurs, it will only contact the front end of the sealing ring 430, and will not directly contact the front end of the proximity switch body 500, which helps to protect the proximity switch body 500 from collisions with external objects.

[0037] As a second embodiment of the present utility model, the proximity switch body 500 is installed inside the mounting assembly 400, and the front end of the proximity switch body 500 is placed inside the sealing ring 430, so that even if an object approaches the front end of the proximity switch body 500, it will not directly act on the front end of the proximity switch body 500, and a limit ring 1 510 and a limit ring 2 520 are installed on the proximity switch body 500. When the mounting tube 420 is collided or the entire mounting assembly 400 vibrates, since the proximity switch body 500 is not in direct contact with the mounting tube 420, the mounting assembly 400 will not directly transmit the vibration to the proximity switch body 500 when it vibrates.

[0038] See also Figures 2 to 3 , the outer diameter of the limiting ring 1 510 is the same as the outer diameter of the limiting ring 2 520, the outer wall of the limiting ring 1 510 is in sliding contact with the inner wall of the cavity 2, and the outer wall of the limiting ring 2 520 is in sliding contact with the inner wall of the cavity 2;

[0039] The limiting ring 1 510 , the limiting ring 2 520 and the sealing ring 430 are all made of an elastic rubber material.

[0040] As the third embodiment of the utility model, based on the above-mentioned second embodiment, the limit ring 1 510 and the limit ring 2 520 are transmitted to the proximity switch body 500. The limit ring 1 510 and the limit ring 2 520 made of elastic rubber material can reduce the amount of vibration transmitted from the installation component 400 to the proximity switch body 500, thereby protecting the proximity switch body 500. At the same time, the part of the proximity switch body 500 connected to the switch wire 530 at the rear end is installed inside the installation component 400, which effectively prevents the influence of the external environment and greatly improves the service life of the entire proximity switch body 500.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elastic proximity switch with improved service life, comprising: A base (100), an anti-collision jacket (200), an anti-collision top plate (300), a mounting assembly (400), and a proximity switch body (500), characterized in that the anti-collision jacket (200) is elastically connected to the upper side of the base (100), the mounting assembly (400) is installed inside the anti-collision jacket (200), the upper end of the anti-collision jacket (200) is elastically connected to the anti-collision top plate (300), and the proximity switch body (500) is installed on the front side of the upper end of the mounting assembly (400); The mounting assembly (400) comprises a mounting tube 1 (410), a mounting tube 2 (420) and a sealing ring (430); the mounting tube 2 (420) is integrally provided on the front side of the upper end of the mounting tube 1 (410); and the sealing ring (430) is mounted on the front end of the mounting tube 2 (420) by means of screws; A first limiting ring (510) is fixed to the front outer wall of the proximity switch body (500), a second limiting ring (520) is fixed to the rear side of the proximity switch body (500), and a switch wire (530) is provided at the rear end of the proximity switch body (500).

2. The elastic proximity switch with increased service life as claimed in claim 1, characterized in that: A through hole (110) is formed by penetrating downwardly through the middle of the upper surface of the base (100); a notch (120) is provided on the rear side of the lower end of the base (100); a front end of the notch (120) is communicated with the lower end of the through hole (110); a plurality of springs (1) are fixed to the edge of the upper surface of the base (100); the upper end of the base (100) is connected to the lower end edge of the anti-collision jacket (200) via the plurality of springs (1); and the length of the springs (1) is less than 20 mm.

3. The elastic proximity switch with increased service life as claimed in claim 2, characterized in that: A plurality of springs 2 are fixed to the edge of the lower surface of the anti-collision top plate (300), and the specifications of the springs 2 are the same as those of the springs 1. The anti-collision top plate (300), the base (100) and the anti-collision jacket (200) are all made of a butyl rubber material.

4. The elastic proximity switch with increased service life as claimed in claim 1, characterized in that: The first installation tube (410) is provided with a cavity one at the lower side thereof, and the second installation tube (420) is provided with a cavity two therein, wherein the inner diameter of the second cavity is greater than the inner diameter of the first cavity.

5. The elastic proximity switch with increased service life as claimed in claim 4, characterized in that: The upper end of the first cavity is connected to the rear end of the second cavity, the front end of the second cavity is provided with an installation cavity, and the sealing ring (430) is fixed inside the installation cavity by screws.

6. The elastic proximity switch with increased service life as claimed in claim 5, characterized in that: The front end of the sealing ring (430) is flush with the front end of the second mounting tube (420), the sealing ring (430) is fixed to the front end of the proximity switch body (500), and the front end of the proximity switch body (500) is placed inside the front end of the sealing ring (430).

7. The elastic proximity switch with increased service life as claimed in claim 6, characterized in that: The outer diameter of the limiting ring 1 (510) is the same as the outer diameter of the limiting ring 2 (520), the outer wall of the limiting ring 1 (510) is in sliding contact with the inner wall of the cavity 2, and the outer wall of the limiting ring 2 (520) is in sliding contact with the inner wall of the cavity 2; The limiting ring 1 (510), the limiting ring 2 (520) and the sealing ring (430) are all made of an elastic rubber material.

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