CN2416592Y

CN2416592Y - Waterproof switch base for hand electric torch

Info

Publication number: CN2416592Y
Application number: CN 00207043
Authority: CN
Inventors: 陈汉樑
Original assignee: JINGLIAN ENTERPRISE CO Ltd
Current assignee: JINGLIAN ENTERPRISE CO Ltd
Priority date: 2000-04-06
Filing date: 2000-04-06
Publication date: 2001-01-24
Anticipated expiration: 2010-04-06

Abstract

The utility model relates to a waterproof switch base for an electric torch and mainly adopts the way that a switch mounting hole is formed at an appropriate position on an electric torch body of the electric torch; a corresponding position in the electric torch body is provided with a switch base; a waterproofing rubber cushion is arranged between the switch base and the mounting hole; a pressing piece is arranged between the switch base and the inner wall of the electric torch body. The pressing piece can be correspondingly be supported and contacted between the inner wall of the electric torch body and the switch base and the waterproof rubber cushion and the mounting hole presents a closed state so as to effectively prevent moisture from permeating via the mounting hole.

Description

The water proof switch seat of flashlight

The utility model relates to a kind of water proof switch seat of flashlight, refers to that especially a kind of moisture that can effectively prevent infiltrates the water proof switch seat of flashlight inside.

Flashlight is a kind of hand tool of frequent use, when using out of doors, influenced by operational environment and atmospheric ambient factors, as the water power worker carry out in the work both hands humidity unavoidably, and also can't avoid the situation of drenching the outdoor engineering staff of rainy day work, or flashlight itself promptly has the possibility of falling into water accidentally, at this moment, flashlight promptly be in wet environment or even the bubble entry in, general flashlight partly is equipped with waterproof washer at its lamp holder and terminal battery cover, its waterproof effect still claims ideal, but its careless omission part is that the open relation of flashlight is exposed to beyond the flashlight, and be electrically connected owing to must constitute with the electric power loop of flashlight inside, so occur air gap unavoidably, these air gaps pass through the very easy moisture moisture that makes, thereby will cause the inner moist corrosion of flashlight, will short circuit phenomenon occur when situation is serious and cause damage.

The utility model main purpose is promptly providing a kind of flashlight water-tight device that can prevent effectively that the moisture moisture from infiltrating via switch.

For achieving the above object, technological means of the present utility model is: a kind of water proof switch seat of flashlight, mainly form the switch installing hole in the flashlight cylinder appropriate location, inner barrel in correspondence position is provided with a switch base again, be provided with a waterproof pad between this switch base and installing hole, its characteristics are, then be provided with a forcing piece again between switch base and cylinder inboard wall, utilize this forcing piece can prop up cylinder inboard wall and switch base relatively, and see through and to push against switch base and make between waterproof pad and installing hole and be closed state, prevent effectively that by this moisture from infiltrating via installing hole.

Above-mentioned switch base is be hollow cylindric, is formed with depression on its one side with respect to switch installing hole on the flashlight, for the installation push-button switch, and makes this push-button switch corresponding to installing hole; In addition, be formed with shallow recess in the depression periphery on the one side of switch base, for ccontaining waterproof pad, the degree of depth perseverance of this shallow recess is less than the thickness of waterproof pad; This waterproof pad is formed with bulge loop in the medial surface of relative switch base, pull in the depression of switch base for corresponding cover, lateral surface at waterproof pad forms the arc protuberance again, and this arc protuberance is the bulge loop with respect to medial surface, and corresponding being placed through between the switch installing hole of flashlight.

Above-mentioned forcing piece includes one and is positioned at packing sheet, on the switch base and strides the seat, that props up of being located at the packing sheet lower edge and run through the spiral shell spare that props up seat and itself and packing sheet are supported with relative direction; Wherein: aforementioned spiral shell spare has different external diameters, and it looks different the degree that is screwed into decision packing sheet and the tightness of propping up of propping up seat.

The utility model compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, because the utility model is formed with perforation on the cylindrical shell of flashlight, and in inner barrel corresponding bore a hole inboard locate to be provided with successively waterproof pad, switch base and forcing piece, utilize the effect of pushing against that supports of forcing piece can the perforation on the cylindrical shell is airtight, thereby can prevent effectively that the moisture moisture from seeing through this place and infiltrating in the flashlight, use and avoid corrosion, short circuit or influence useful life.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.All accompanying drawings wherein are:

Fig. 1 is the exploded view of the utility model one preferred embodiment;

Fig. 2 is the cutaway view of the utility model one preferred embodiment;

Fig. 3 is the cross-sectional schematic of the action of expression the utility model one preferred embodiment; And

Fig. 4 is the exploded view of the another preferred embodiment of the utility model.

See also shown in Figure 1ly, the utility model provides the flashlight water proof switch seat of the desirable waterproof effect of an ease of assembly and tool, and it includes a switch base 40 and that has module of one's own and is located at waterproof pad 30 between switch base 40 and flashlight cylinder 10 inwalls.Wherein: the cylindrical shell 10 of flashlight is formed with switch installing hole 101,102 in the appropriate location; Waterproof pad 30 promptly in a suitable manner, as screw togather or the gummed mode is fixed on the switch base 40, and correspondence is positioned at switch installing hole 101,102 inboards, in the cylindrical shell 10 of the flashlight of again switch base 40 being packed into subsequently, will block automatically to the appropriate depth place and to end and be positioned at the appropriate location.So far, only rotating switch seat 40 can make the

arc protuberance

31,32 of set waterproof pad 30 on it align switch installing hole 101,102 a little, and utilize a forcing piece 50 to press switch base 40, make it compress waterproof pad 30 to constitute airtight shape, again lamp holder 20 is combined with cylindrical shell 10 subsequently, promptly finish the combination of flashlight.

Relevant concrete structure of the present utility model below is described in detail in detail:

At first see also shown in Fig. 1,2, above-mentioned cylindrical shell 10 is except that being formed with in the front end appropriate location the switch installing hole 101,102, its one section inwall near opening has big slightly internal diameter in addition, and be formed with recessed rank 105 in suitable height place, these recessed rank 105 are the bulge loops 402 for block this switch base 40, stay in certain depth after it is packed into.

Waterproof pad 30 is that the material by tool elasticities of compression such as rubber or silica gel constitutes, its surface is to be the radian that cooperates cylindrical shell 10 inwalls, its outer surface with respect to installing hole 101,102 is formed with two outstanding a little arc protuberances 31,32 (seeing also shown in Figure 2) again, two arc protuberances the 31, the 32nd, correspondence is passed installing hole 101,102, and be positioned at 103,104 in the formed hole of cylindrical shell 10 outer walls, outer through waterproof pad 30 console switchs for the user by cylindrical shell 10.

In addition, waterproof pad 30 then is formed with the

arc protuberance

31,32 of

bulge loop

33,34, two

bulge loops

33,34 suitable respectively corresponding its lateral surfaces of the suitable internal diameter of two tools with respect to the medial surface of switch base 40.

Switch base 40 is hollow cylindrical bodies, and its upper end is formed with the bulge loop 402 of a big slightly external diameter, and this bulge loop 402 suitable recessed rank 105 corresponding to cylindrical shell 10 inwalls, and be subjected to its block so that switch base 40 is packed into behind the cylindrical shell 10, can arrive the location rapidly.Again, switch base 40 outer wall circular arc degree are the radians that cooperate cylindrical shell 10 inwalls, and make half one be Openworks shape, for a ccontaining switch and a forcing piece 50.Also be provided with a group or more push-button switch 44 on the switch base 40, in present embodiment, switch base 40 is provided with two groups of push-button switches 44.For this push-button switch 44 is installed, this switch base 40 is formed with two depressions 41,42 on outboard end, divide and supply two push-button switches 44 to pass two depressions 41,42 from inside to outside with the button 440 of its front end, and with nut 45 by external fixation, push-button switch 44 after fixing, its button 440 is corresponding to the installing hole 101,102 on two

arc protuberances

31,32 and the cylindrical shell 10 on the waterproof pad 30.

Forcing piece 50 is in order to propping up cylindrical shell 10 inwalls and switch base 40 relatively, and sees through and push against switch base 40 and make 101,102 of installing holes on waterproof pad 30 and the cylindrical shell 10 be closed state, and reaches the purpose that waterproof is only oozed.This forcing piece 50 includes one and is positioned at packing sheet 51, on the switch base 40 and strides the seat 52, that props up of being located at packing sheet 51 lower edges and be arranged in and prop up on the seat 52 and the spiral shell spare 53 that itself and packing sheet 51 are supported with relative direction; Wherein:

In present embodiment, this packing sheet 51 is 41,42 of depressions that are integrally formed at switch base 40.Except that the integrally formed mode of this kind, packing sheet 51 also can be and is independent of switch base 40 individual component in addition.In addition, packing sheet 51 outer ledges are formed with a flat end 510, stride and establish on it for propping up seat 52.This props up seat 52 and generally is a Contraband shape by what side-looking was seen, so that corresponding being inserted on the flat end 510 of packing sheet 51.Also have, prop up and be formed with the corresponding hole 520 that supports on the two lateral walls of seat 52 respectively, support hole 520 outside peritremes and be formed with a flat segments, inboard peritreme is then kept circular hole; The outer side edges of propping up seat 52 one linking two side is to cooperate cylindrical shell 10 inwall radians and tool one suitable radian, so that prop up cylindrical shell 10 inwalls.

Spiral shell spare 53 comprises that a miner diameter end 533, an awl footpath hold 532 and one bigger diameter end 531.Above-mentioned three respectively by prop up the seat 52 support hole 520 time will form the different degree that supports, mainly be because of spiral shell spare 53 via the breach 403 of switch base 40 insert support hole 520 after, it is butted on 510 of the flat end of the flat segments that supports hole 520 and packing sheet 51, and along with thread on the spiral shell spare 53 is screwed into gradually, this props up seat 52 and is promptly strutted gradually relatively, and is butted on the opposed inner walls of cylindrical shell 10 with outer side edges.When entering, the bigger diameter end 531 of spiral shell spare 53 supports hole 520, cylindrical shell 10 inwalls (as shown in Figure 3) have been pushed against owing to prop up seat 52 outer side edges, push switch base 40 to so will produce reaction force to packing sheet 51, press the suitable flexible waterproof pad 30 of tool and make it airtight and see through switch base 40 with perforation 101,102 formation on the cylindrical shell 10, this moment, waterproof pad 30 was promptly just as the waterproof washer, can prevent effectively that moisture or moisture from infiltrating via the perforation on the cylindrical shell 10 101,102.

Now, please consult shown in Figure 4ly in addition, this is the exploded view of the another preferred embodiment of the utility model, and it has disclosed the switch base 40 of the single push-button switch 44 of a kind of only tool and the forcing piece 60 that is mated.

In a last embodiment, the packing sheet 51 of forcing piece 50 is to be located between two push-button switches 44, to reach the exert pressure purpose of packing of balance.And in present embodiment, because therefore the single push-button switch 44 of tool only, is also readjusted by a small margin on the Position Design of forcing piece 60.In the present embodiment, it still includes one and is positioned at packing sheet 61, on the switch base 40 and strides the seat 62, that props up of being located at packing sheet 61 lower edges and be arranged in and prop up on the seat 62 and the spiral shell spare 63 that itself and packing sheet 61 are supported with relative direction; Wherein:

Switch base 40 cooperates single push-button switch 44 designs, only is formed with single depression 41 on its outboard end, place for button 440 correspondences of above-mentioned push-button switch 44, and with nut 45 by external fixation.In the present embodiment, be formed with a wedge groove 401 that is positioned on the diametric plane on the madial wall of this switch base 40, this wedge groove 401 and the corresponding middle position that is positioned at depression 41.

In present embodiment, this packing sheet 61 is to mutually combine with the individual elements form under released state with switch base 40, so packing sheet 61 inner side edges are to cooperate switch base 40 inwall radians and form the circular arc limit, and possess suitable thickness, insert in the wedge anchorage mode and to pull in aforementioned wedge groove 401 and constitute fixing.Again, be formed with a recess 611 on packing sheet 61 inner side edges again, use and get out of the way push-button switch 44, and packing sheet 61 correspondingly stride the centre of being located at push-button switch 44, and, make switch base 40 see through waterproof pad 30 and form driving fit with cylindrical shell 10 inwalls by exerting pressure at this place; Moreover packing sheet 61 outer ledges are formed with a flat end 610, stride and establish on it for propping up seat 62; Then identical as for the structure that props up elements such as seat 62 and spiral shell spare 63 with last embodiment.So from the above, when switch base 40 is the singly-bound form, also can utilize forcing piece 60 in an identical manner waterproof pad 30 balances to be exerted pressure, make between itself and cylindrical shell 10 inwalls constituting driving fit, and reach the function of waterproof.

Claims

1. the water proof switch seat of a flashlight mainly is to form the switch installing hole in the flashlight cylinder appropriate location, and the inner barrel in correspondence position is provided with a switch base again, is provided with a waterproof pad between this switch base and installing hole, it is characterized in that,

Then be provided with a forcing piece between this switch base and cylinder inboard wall, utilize this forcing piece to prop up cylinder inboard wall and switch base relatively, and then push against switch base and make between waterproof pad and installing hole and be closed state.

2. the water proof switch seat of flashlight according to claim 1, it is characterized in that this switch base is be hollow cylindric, be formed with depression on its one side with respect to switch installing hole on the flashlight, for the installation push-button switch, and make this push-button switch corresponding to installing hole; Be formed with shallow recess in the depression periphery on the one side of switch base, for ccontaining waterproof pad, the degree of depth perseverance of this shallow recess is less than the thickness of waterproof pad; This waterproof pad is formed with bulge loop in the medial surface of relative switch base, pulls in the depression of switch base for corresponding cover, and in addition, its lateral surface is formed with the arc protuberance, and this arc protuberance is the bulge loop with respect to medial surface, and corresponding being placed through between the switch installing hole of flashlight.

3. the water proof switch seat of flashlight according to claim 1, it is characterized in that this forcing piece includes one and is positioned at packing sheet, on the switch base and strides the seat, that props up of being located at the packing sheet lower edge and run through the spiral shell spare that props up seat and itself and packing sheet are supported with relative direction.

4. the water proof switch seat of flashlight according to claim 3 is characterized in that, this packing sheet is to be integrally formed on the switch base.

5. the water proof switch seat of flashlight according to claim 3, it is characterized in that, this packing sheet be with the unpack format wedge anchorage in the formed wedge groove of switch base inner face, and the packing sheet medial margin is formed with a recess, this recess is suitable can correspondence to get out of the way this push-button switch, and by this place switch base is exerted pressure.

6. the water proof switch seat of flashlight according to claim 3, it is characterized in that this props up seat and generally is a Contraband shape by what side-looking was seen, be formed with on its opposing sidewalls and support the hole, for placing spiral shell spare, to be connected the outer side edges of two side be to cooperate cylinder inboard wall and be formed with suitable radian to its one again.

7. the water proof switch seat of flashlight according to claim 3 is characterized in that, is formed with bigger diameter end, awl footpath end and miner diameter end on this spiral shell spare successively.