CN203205340U - Proximity switch trigger device - Google Patents

Abstract

The utility model discloses a proximity switch trigger device, relates to a matching accessory device of a proximity switch, and particularly pertains to a proximity switch trigger device. The proximity switch trigger device is composed of a magnet (6) and a protective device which is located at the periphery of the magnet (6). The proximity switch trigger device is characterized in that the protective device comprises an anti-collision cap (1), a buffer spring (2), a fixation cover (4) and an adjusting nut (5); the magnet is arranged in the anti-collision cap and supported by an ejector rod (3) so as to be fixed at the front end of the device, the buffer spring is sleeved onto the ejector rod, wherein one end of the buffer spring is pressed against the blocking wall of the fixation cover, and the other end of the buffer spring is pressed against the tail portion of the anti-collision cap; the head portion of the anti-collision cap is shaped like an arc and matched with the ejector rod through threads; and the adjusting nut is located outside the blocking wall of the fixation cover and connected with the ejector rod through threads. The proximity switch trigger device of the utility model has positive effects of improving the control sensitivity of the whole switch, simplifying the structure of existing proximity switches and facilitating assembly and disassembly.

Description

The approach switch trigger equipment

Technical field

The utility model relates to a kind of supporting auxiliary equipment of approach switch, belongs to especially a kind of approach switch trigger equipment.

Background technology

Approach switch claims again contactless proximity switch, is used in general Stroke Control, has that long service life, reliable operation, repetitive positioning accuracy are high, characteristics such as machinery-free wearing and tearing, no-spark, noiselessness, vibration resistance are strong.Therefore up to the present the range of application of approach switch is increasingly extensive.But the complicated structure in its detection head, the fault point is many, destabilizing factor easily occurs, affects the control sensitivity of global switch.

Summary of the invention

The purpose of this utility model namely is to provide a kind of novel approach switch trigger equipment, to reach the purpose of simplifying approach switch and improving global switch control sensitivity.

Approach switch trigger equipment provided by the utility model is made of magnet and peripheral protector thereof, it is characterized in that, described protector comprises Anti-collision cap, buffer spring, fixed cover and adjusting nut; Magnet places in the Anti-collision cap, is supported and fixed on the front end of device by push rod, and buffer spring is sleeved on the push rod, and buffer spring one end withstands on the retaining wall of fixed cover, and the other end withstands on the afterbody of Anti-collision cap; The Anti-collision cap head is circular-arc, passes through threaded engagement with push rod; Adjusting nut is positioned at the retaining wall outside of fixed cover, with the push rod spiral marking connection.

The utility model cooperates with approach switch, can consist of an asymptotic expression switch secondary, has improved whole switch control sensitivity, and approach switch triggers by magnet of the present utility model, can simplify the internal structure that has approach switch now.Because the Anti-collision cap head is circular-arc, and the existence of buffer spring, can play a very good protection to this device.Unfixing dead because of push rod again, Anti-collision cap, adjusting nut are enough large again, can carry out fully by hand when dismounting, do not need other aids.So, the utlity model has and improve whole switch control sensitivity, simplify the structure of existing approach switch and the good effect of easy disassembly.

Description of drawings

Accompanying drawing partly discloses specific embodiment of the utility model, wherein,

Fig. 1, the utility model structural representation;

Fig. 2 is provided with the utility model front view of sidepiece connecting piece;

Fig. 3 is provided with the utility model left side view of sidepiece connecting piece;

Fig. 4 is provided with the utility model front view of end connection spare;

Fig. 5 is provided with the utility model left side view of end connection spare.

Embodiment

As shown in Figure 1, the utility model is made of magnet and peripheral protector thereof, and described protector comprises Anti-collision cap 1, buffer spring 2, fixed cover 4 and adjusting nut 5; Magnet 6 places in the fixed cover, is supported and fixed on the front end of device by push rod 3, and buffer spring is sleeved on the push rod, and buffer spring one end withstands on the retaining wall of fixed cover, and the other end withstands on the afterbody of Anti-collision cap.The Anti-collision cap head is circular-arc; can slightly exceed magnet during installation; can both well play a protective role when magnet is subject to the bump of different directions, Anti-collision cap afterbody outer rim and fixed cover inboard are matched in clearance, and rocking by a relatively large margin can not be arranged again when can sliding.Push rod one end and Anti-collision cap threaded engagement, the part and adjusting nut threaded engagement of stretching out solid overhead guard, adjusting nut can be regulated the size of buffer spring bounce-back dynamics and the length of cushion stroke according to actual needs.

Installation of the present utility model indirectly realizes by fixed cover, Gu the outside of overhead guard is provided with the connecting piece 7 of different model, can be such as Fig. 2, sidepiece connecting piece shown in Figure 3, also can be such as Fig. 4, end connection spare shown in Figure 5.When connecting mutually with other equipment, can select to be provided with the utility model of different model connecting piece according to different bind modes, connect with it with convenient.Because dead cooperation is not fixed in assembling of the present utility model, Anti-collision cap, adjusting nut are enough large again, can carry out fully by hand when dismounting, do not need other aids.

Be provided with coil in the approach switch that generally adopts at present, or conductive metal ring, after energising, form magnetic field, when the object that magnetic conduction is arranged entered magnetic field, magnetic field changed, and converted signal output to by Hall element.When using the utility model, need not to be provided with coil in the approach switch, or conductive metal ring formation magnetic field, itself has magnetic field magnet, and when near approach switch, magnetic field, Hall element position changes, and converts signal output to by Hall element.Thereby simplified the approach switch internal structure, improved the stability of approach switch.

Claims (2)

1. an approach switch trigger equipment is made of magnet (6) and peripheral protector thereof, it is characterized in that, described protector comprises Anti-collision cap (1), buffer spring (2), fixed cover (4) and adjusting nut (5); Magnet places in the Anti-collision cap, is supported and fixed on the front end of device by push rod (3), and buffer spring is sleeved on the push rod, and buffer spring one end withstands on the retaining wall of fixed cover, and the other end withstands on the afterbody of Anti-collision cap; The Anti-collision cap head is circular-arc, passes through threaded engagement with push rod; Adjusting nut is positioned at the retaining wall outside of fixed cover, with the push rod spiral marking connection.

2. approach switch trigger equipment according to claim 1 is further characterized in that, the outside of described solid overhead guard is provided with connecting piece (7), is the sidepiece connecting piece, or end connection spare.

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