CN2482562Y

CN2482562Y - Dampproof floator switch

Info

Publication number: CN2482562Y
Application number: CN 01248386
Authority: CN
Inventors: 洪介上
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-25
Filing date: 2001-06-25
Publication date: 2002-03-20
Anticipated expiration: 2011-06-25

Abstract

A moisture-proof floating ball switch comprises a switch body and a loop controller, and is characterized in that the loop controller is positioned on the upper end surface of the switch body which is covered with an air-tightness cover; and the switch body extends downwards and is provided with a connecting part, the upper end of the connecting part is provided with screw threads, the lower part of the connecting par is covered with a waterproof sleeve; the lower end of the water sleeve is provided with a sealing end surface which is provided with a pulling rope hole, and the pulling rope goes through the pulling rope hole to cooperate in tight way; the utility model has the advantages that the switch can keep the hydrosphere from entering the switch body, thereby preventing the switch from being corroded by humidity and guaranteeing that the floating ball switch have a accurate control function.

Description

A kind of moistureproof float switch

The utility model relates to a kind of water level switch, particularly relates to a kind of aqueous vapor that prevents and enters a kind of moistureproof float switch of Switch main body.

Float switch is one of widely used level control switch for water, and float switch mostly is installed in the closed aqueous medium container containing, or in other liquid medium container containing.The container aqueous vapor of being heated and being produced like this causes float switch because of long-term humidity corrosion or form loose contact.In " tool quicken to overflow gas reduce the float switch structure of humidity " that the crowd knows (Taiwan patent announcement number No. 329940) the patent case, be that the hollow cover body covers in Switch main body with holding part, the steam storage tank that is communicated with and is umbrella with holding part is established on cover body top, steam storage tank top is an end face, and have parallel kerve structure, kerve place establish ring of numbers around spilled water hole.Though this patent is provided with spilled water hole, supplied gas is discharged, and this aqueous vapor still has local attached on the switch, still can make switch corrosion and generation water receiving bad, influences normal water supply and uses problem.

The purpose of this utility model is to provide a kind of aqueous vapor of stopping to enter in the Switch main body at the problems referred to above, float switch is kept dry and has the good float switch that contacts effect.

The purpose of this utility model realizes by following technical proposals, that is:

A kind of moistureproof float switch comprises Switch main body, circuit controls element, waterproof jacket, stay cord.The circuit controls element is installed on the upper surface of Switch main body, and covers with the lid tightness.Switch main body has a link that extends downwards, and screw thread is arranged at the top of link, and its underpart does not have screw thread.The waterproof jacket upper end is an openend, and the lower end is a blind end, and the stay cord through hole is arranged on blind end.Waterproof jacket is made by elastomeric material, and vertically with radially all scalable, waterproof jacket is sleeved on the lower end of link.Stay cord passes the stay cord through hole on the waterproof jacket, interference fit, and the stay cord upper end is connected with the rear end of the contact pressing plate of circuit controls element, and its lower end can be connected with ball float.Link of the present utility model passes the locating hole of aqueous medium container top, and is connected with locating hole with screw thread.

On the inwall on above-mentioned waterproof jacket top a plurality of inner circular tooths are arranged, be provided with annular groove at the following ora terminalis of described link.When waterproof jacket was contained on the link, an inner circular tooth was entrenched in the annular groove, and closely cooperates.

Advantage of the present utility model is to prevent that aqueous vapor from entering Switch main body, makes it can not be subjected to the moisture corrosion, keeps well contact, guarantees that float switch has to control function accurately.

Fig. 1 is the use schematic diagram of a kind of embodiment of the present utility model, and Fig. 2 is the partial exploded view of present embodiment, and Fig. 3 is the local assembled sectional view of the user mode of present embodiment.The utility model is described in further detail below in conjunction with accompanying drawing.

A kind of moistureproof float switch comprises Switch main body 2, loop control unit (commercial) 21, lid 22, stay cord 26 and waterproof jacket 3.Be installed with support 27 in the upper end of Switch main body 2, loop control unit 21 is covered 22 tightness buckle closures on Switch main body 2 by being bolted on the support 27.Switch main body 2 has extended link 23 downwards, and screw thread 24 is arranged at the top of link 23, and the following ora terminalis of link 23 has annular groove 25.Waterproof jacket is made by elastomeric material, and its top is an openend 31, and a plurality of inner circular tooths 32 are arranged on the openend inwall, and the lower end of waterproof jacket 3 is a Closed End 33, and stay cord through hole 34 is arranged on Closed End 33, and the diameter of stay cord through hole 34 is less than the diameter of stay cord 26.The openend 31 of waterproof jacket 3 is sleeved on the link 23, and the inner circular tooth 32 on waterproof jacket 3 inwalls is chimeric with annular groove 25, and closely cooperates.Stay cord 26 passes stay cord through hole 34, and interference fit.The centre bore that Switch main body is passed in the upper end of stay cord 26 is fixedlyed connected with the rear end of the contact pressing plate 29 of the contact 28 of loop control unit 21, and the lower end of stay cord 26 can be connected with ball float.During use, the link 23 of Switch main body passes the locating hole at water tower top 1, and is connected with this locating hole with screw thread 24.

The utility model is the liquid level control of suitable water medium not only, and be applicable to the liquid level control of other various liquid mediums.

Claims

1, a kind of moistureproof float switch comprises Switch main body (2), loop control unit (21), it is characterized in that loop control unit (21) is installed on the upper surface of Switch main body (2), and lid (22) tightness buckle closure is on Switch main body (2); Switch main body (2) has extended link (23) downwards, there is screw thread (24) upper end of link (23), be arranged with waterproof jacket (3) in the bottom of link (23), waterproof jacket (3) lower end is Closed End (33), stay cord through hole (34) is arranged on Closed End (33), and stay cord (26) passes stay cord through hole (34), interference fit, the rear end of the contact pressing plate (29) in the upper end of stay cord (26) and the loop control unit (21) is connected, and the other end of stay cord (26) can be connected with ball float.

2, a kind of moistureproof float switch according to claim 1, it is characterized in that on the wall a plurality of inner circular tooths (32) being arranged within the openend of described waterproof jacket (3), following ora terminalis at described link (23) is provided with annular groove (25), when waterproof jacket (3) is sleeved on the link (23), inner circular tooth (32) on waterproof jacket (3) inwall is chimeric with annular groove (25), and closely cooperates.