CN2132915Y

CN2132915Y - Electric torch focusing switch

Info

Publication number: CN2132915Y
Application number: CN 92223137
Authority: CN
Inventors: 萧水树
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-30
Filing date: 1992-05-30
Publication date: 1993-05-12
Anticipated expiration: 2002-05-30

Abstract

The utility model relates to an electric torch focusing switch, characterized in that a lamp holder comprises an upper base body and a lower base body. The upper base can be directly combined with a barrel body, and the central part thereof is provided with two conducting strips. The lower part of the first (anode) conducting strip is directly bent at the bottom end of the upper base body. The tail end of the second (cathode) conducting strip is protruded at the outer side of the upper base body and remains fixed electric contact with the inner wall of the barrel body. The base centers of both sides of each conducting strip are provided with semicircle through holes. The bottom of the lower base body is provided with a disk body whose upper part is provided with two convex pieces correspondingly matched with two semicircle through holes. After the two base bodies are assembled, the lower base body can be fixedly sheathed in the upper base body and can up and down move in the semicircle through holes.

Description

Electric torch focusing switch

The utility model relates to a kind of flashlight and focuses on switch, particularly relates to a kind of have disconnected cathode power supply, simple and convenient assembly, the accurate and definite flashlight focusing switch of power switch action.

See also shown in Fig. 1,2,3, it mainly is directly to form flange 111 for metal stack shell 11 front ends that grip and load battery that flashlight in the past focuses on switch; The lamp socket 12 of annular insulating material, can be inserted in the stack shell 11, and be inserted with two conducting strips 121,122 on the lamp socket 12, and conducting strip 121 bends so that contact with flange 111 along the end face of lamp socket 12 is outside, and conducting strip 122 passes lamp socket 12 and bend inwards so that contact with the positive terminal of dry cell 10, respectively has groove 120 on the lamp socket 12 of conducting strip 121,122 2 sides; Insulator 13 have two with the corresponding perforation 131 in conducting strip 121,122 positions, so that the pin 141 of bulb 144 passes this hole 131 and can firmly insert and be electrically connected to two conducting strips 121,122, and its bottom has two suitable lengths and the lug 132 corresponding with groove 120 positions, it can enter and insert in the groove 120 that is fixed in lamp socket 12 by stack shell 11 front ends, and insulator 13 and lamp socket 12 are integrally combined and is sheathed on two sides of stack shell 11 flanges 111; Tail-hood 14 with metal spring can be bolted in the bottom of stack shell 11, and the volute spring 142 on it is used to make dry cell 10 and lamp socket 12 and flange 111 to keep electrically contacting and can does the suitably displacement of compression; Inside has the lamp holder lid 15 of reflector 151 and the leading section outer rim of stack shell 11 is spirally connected, and reflector 151 ora terminalis are contacted with insulator 13, so, can be used for controlling the switch of flashlight and adjust focal length.

Please consult shown in Figure 1 again, lamp holder lid 15 fully and stack shell 11 when screwing togather, its inner reflector 151 just pushes away (being that metal spring 142 is compressive state) with insulator 13 toward in, makes conducting strip 121 on the lamp socket 12 with flange 111 contacts and form circuit breaker, is the action of turning off the light at this moment; Yet, when lamp holder lid 15 toward oppositely revolving when moving, conducting strip 121 just contact with flange 111 and forms circuit pathways, at this moment is the action of turning on light, and after this lamp holder lid 15 continuation is mobile outward again is exactly the action of adjusting focal length.So flashlight is to cover the switch of controlling electric light and the adjustment of focal length with lamp holder fully, but have following shortcoming during its actual use:

(1) negative electricity outage: its electric power disconnection is to utilize the conducting strip 121 of negative pole to separate with flange 111.

(2) assembling is more not convenient: lamp socket 12 is earlier to enter in the tube flange 111 places of dislocation front end by stack shell 11 bottoms again and be linked in insulator 13, therefore stack shell itself has suitable length, add the fit outside the element necessary interior, when assembling, more increase trouble and make.

(3) the power switch action is less and imprecise: as shown in Figure 1, the displacement that insulator 13 promotes lamp socket 12 is very little, and conducting strip 121 is bent into and has suitable perk shape, if in that to add man-hour, quality management not strict, when the perk angle is too big, can cause power supply to close not fall or more inapt phenomenon.

(4) change inconvenience: because insulator 13 must have suitable accuracy with lamp socket 12 fits, so that the two can closely be fixed together, yet, it is bad that the producer often does in order to save cost, make insulator 13 combine very pine with lamp socket 12, cause and more changing the bulb or during dry cell, the two is easy to come off, thereby causes inconvenience in the use.

(5) cost is higher: stack shell often must be done anode and handle (promptly electroplating), so that stack shell 11 has appearance attractive in appearance, and make flange 111 inboards plate one deck insulator, and cause when contacting poor electric contact maybe can not conduct electricity with conducting strip 121, scrape and must spend once artificial, time again.

(6) cathode conductive film 121 easily drops and must install clasp again additional when assembling, quite trouble.

(7) quality is bad: anodal scale copper (being conducting strip 122) rubs for a long time with dry cell, easily causes it to fracture.

(8) the flange manufacturing bothers: flange 111 then can't close as too thick, too thin then easy fracture, and after the necessary first bending of flange, the reprocessing aperture is so the manufacturing of flange tends to cause producer's very big difficulty on making.

Main purpose of the present utility model is to provide a kind of have disconnected positive electricity, simple and convenient assembly, the accurate and certain flashlight focusing switch of power switch action.

Principal character of the present utility model is: lamp socket comprises, lower base, upper pedestal can directly be fixed together by stack shell, its central part is provided with two conducting strips, first (positive pole) conducting strip lower end directly bends in the upper pedestal root edge, it is outer and can be maintained fixed formula with the stack shell inwall and electrically contact that second (negative pole) conducting strip end protrudes from the upper pedestal side, and the pedestal central authorities two conducting strip two sides respectively have the semicircle perforation, the bottom of lower base is provided with has the disk body that can supply the through hole that battery anode portion (being anodal salient point) passes, top is the lug of two and upper pedestal semicircle perforation corresponding matching, its length is big than the thickness of upper pedestal, and will go up, after the lower base assembling, lower base can overlap and be fixed in the upper pedestal and can be up and down in the semicircle perforation, and lug can pass upper pedestal; In use, the revolving light skull is done lower base (i.e. two lugs) to move up and down and is promoted the dry cell anode portion to leave first conducting strip be outage in upper pedestal, just can to make the dry cell anode portion be upward through disk body and can contact with first conducting strip be to switch on and lamp holder lid up moved, continuing up to move is the action of adjusting focal length again, so can reach disconnected positive electricity, simple and convenient assembly, action is accurate, switch is definite purpose.

Directly be provided with metal rivet in the through hole of the disk body of above-mentioned lower base,, and also can keep electrical the contact outside always with the anode portion of dry cell so that when two lugs are inner, can or separate with the contact of first conducting strip.

Below by most preferred embodiment and accompanying drawing flashlight of the present utility model is focused on switch and be elaborated, in the accompanying drawing:

Fig. 1 is a kind of combination sectional view of flashlight in the past.

Fig. 2 is Fig. 1 exploded perspective view partly.

Fig. 3 is the rear isometric view of Fig. 1 lamp socket 12.

Fig. 4 is a combined planar cutaway view of the present utility model.

Fig. 5 is an exploded cross-sectional plan view of the present utility model.

Fig. 6 is the utility model lamp socket exploded perspective view.

Fig. 7 is the bottom isometric view of the upper pedestal of the utility model lamp socket.

Fig. 8 is the action schematic diagram of adjustment of the utility model focal length and power switch.

At first, see also Fig. 4,5,6,7, the utility model comprises stack shell 2, lamp holder lid 3, lens, paraboloidal reflector 5, lamp socket 6, bulb 7 and tail-hood 14;

Stack shell 2 is metal materials, the dry cell 20 of its inner configurable several series connection, and the head end outer rim has screw thread 21, and tail end inside also has screw thread 22.

Lamp holder covers 3 tail end inside and has the negative thread 31 that cooperates with screw thread 21, and lens 4 and paraboloidal reflector 5 are to cover 3 heads from lamp holder together to be installed in the lamp holder lid 3, and with head with after the machine extruding, reflector 5 and lens 4 promptly are fixed, reflector 5 afterbodys can stretch in the negative thread 31, lens 4 outer rims are socketed with waterproof apron 41, so that through after the combination, make lamp holder lid 3 have the function of waterproof.

Lamp socket 6 is a kind of insulating materials, comprise upper pedestal 8 and lower base 9, the lower end of the central part 80 of upper pedestal 8 is that the projection 81 that suitably protrudes from its end face is arranged, projection 81 1 sides are to have the breach concordant with end face 82, and have two conducting strips 83 in the

central part

80,84, the lower end of first (promptly anodal) conducting strip 83 is extended and is bent on projection 81 surfaces, so that electrically contact with dry cell 20 anode portion 201, and the lower end of second (being negative pole) conducting strip 84 also stretch out from the breach 82 of projection 81 after again along its outer rim upwards bending fit, contact so that be maintained fixed the electrical of formula with stack shell 2 inwalls always, central part 80(i.e. two conducting strips 83,84) respectively has the semicircle orifice 85 that runs through in the upper pedestal 8 of two sides; And the bottom of lower base 9 is disk bodies 91, has the metal rivet 90 that runs through disk body 91 front-backs on the disk body 91, internally can contact with first conducting strip 83 or separate and externally also can keep closely electrically contacting with dry cell 20 anode portion 201, top is two lugs 92 with semicircle orifice 85 position corresponding matching, lug 92 is directly by integrated on the disk body 91, its outside, end also has salient point 93, so that after lower base 9 and upper pedestal 8 are assembled, salient point 93 can be equipped on upper pedestal 8 end faces, so that on,

lower base

8,9 can combine, and lug 92 can be moved up and down in semicircle orifice 85, lower base 9 tops can be slided up and down in upper pedestal 8 and can reach the effect of Switching power switch.

The foot 71 of bulb 7 can directly be inserted in the central part 80 of upper pedestal 8 and electrically contact with two conducting

strips

83,84 in it, and bulb 7 also can penetrate in the paraboloidal reflector 5.

Tail-hood 14 also is a metal material, and its top outer rim has and stack shell 2 internal threads 22 mating male threads 141, and its end face is provided with metal spring 15, is to have the alcove 142 that can put spare bulb in the tail-hood 14.

During assembling, earlier with on the lamp socket 6,

lower base

8,9 assemblings together, lamp socket 6 is placed in stack shell 2 upper ends again, and the punching press that directly utilizes the point type of machinery outside stack shell 2 embeds on upper pedestal 8 outer rims stack shell 2 inwalls, so lamp socket 6 just integrally combines with stack shell 2 and makes second (negative pole) conducting strip 84 be maintained fixed tight the contact with stack shell 2 inwalls, then bulb 7 is inserted on the lamp socket 6, paraboloidal reflector 7, lens 4 are packed in the lamp holder lid 3 as described above in regular turn, lamp holder lid 3 screws togather with stack shell 2 head ends again, dry cell 20 is packed in the stack shell 2, and then tail-hood 14 also screws togather with stack shell 2 tail ends, and just assembling is finished.

During actual the use, please cooperate shown in Figure 8, wherein metal spring 15 is to be butted on dry cell 20 negative pole portions place and to push it up to push up, force the anode portion 201 of first dry cell 20 tightly to prop up on the rivet 90 of the disk body 91 of lower base 9, and lug 92 upper ends also closely paste to connect with paraboloidal reflector 5 lower ends, this moment, the upper pedestal 8 first interior conducting strips 83 did not contact with dry cell 20 anode portion 201, power supply is to be short-circuit condition, bulb 7 does not work, and with 3 rotations of lamp holder lid, lamp holder lid 3 is moved on stack shell 2, and lug 92 also is up to move together simultaneously, to make rivet 90 on the disk body 91 with the first conducting strip 83(shown in imaginary line 900 positions) contact, this moment circuit turn-on, bulb 7 is bright, up moves (shown in imaginary line 901 positions) and continue revolving light skull 3, is the adjustment of focal length.When lamp holder lid 3 moves down, just can promote dry cell 20 and move down, first conducting strip 83 is separated and the anode portion 201 of dry cell 20 also keeps electrically contacting with rivet 90 always with rivet 90, just produce outage.Opposite, lamp holder lid 3 up moves first conducting strip 83 is contacted with rivet 90, just produces the effect of energising and focusing.

By above explanation as can be known, the utility model is directly lamp socket to be divided into upper and lower two pedestals, and utilizes the up and down interactive relationship of upper and lower pedestal, really can make the utility model Focusion switch of electric torch produce in use advantage as described below:

(1) positive electricity outage: different from aforementioned in the past negative electricity power-down mode.

(2) assembling is more convenient: the upper and lower pedestal of lamp socket can directly combine in advance and recycle mechanical. points punching press stack shell, make lamp socket integral body be fixed in stack shell inside, and than distinguishing (be aforementioned dielectric body 13 with lamp socket 12) mode of assembly again in outside stack shell one in the past, the utility model more firmly, not fragile, low cost of manufacture, save time.

(3) the power switch action is big and certain: the upper pedestal of lamp socket is directly to be fixedly arranged on the stack shell, and utilize moving up and down of lower base, with moving up and down of control dry cell, and reach the purpose of power switch, and make the displacement of its switch motion accurate, so the open and close of power supply also Really.

(4) be beneficial to replacing: the mutual fit of upper and lower pedestal of lamp socket together, upper pedestal is affixed with stack shell, when will more changing the bulb or during battery, upper and lower pedestal can oneself not drop, so can be very relieved more change the bulb or battery.

(5) cost reduces: since in assembling easily and simple, and needn't will bend flange, and the inner face of flange after anode is handled must spend once artificial, the time again again, so cost of the present utility model was saved more in the past as stack shell in the past.

(6) upper pedestal and stack shell is chimeric, is directly to utilize the mode of machine with point, and so direct punching press stack shell and upper pedestal is fixed is very fast and firmly when assembling.

(7) waterproof: between lamp holder lid and the stack shell and lens cover to combine with lamp holder and be equipped with waterproof washer, so have the effect of waterproof.

The utility model can reach the application target of expection really and improve the shortcoming of flashlight in the past in sum, and provide a kind of flashlight to focus on switch with positive electricity outage, not only construct, assemble simple and easy, also can make flashlight have in use and change effect convenient, that power supply open and close action is big and certain.

Claims

1, a kind of flashlight focuses on switch, comprises stack shell, lamp holder lid, lens, paraboloidal reflector, bulb, lamp socket that can hold the dry cell arranged in series and the tail-hood with spring member; It is characterized in that: lamp socket comprises, lower base, upper pedestal directly fixes with stack shell, its central part is provided with first conducting strip and second conducting strip, bulb is installed on the conducting strip, the first conducting strip end directly bends in the upper pedestal bottom, and electrically contact with the anode portion of dry cell in the stack shell, the second conducting strip end protrudes from outside the upper pedestal side and is maintained fixed formula with the stack shell inwall and electrically contacts, on the pedestal of each conducting strip two side, respectively has perforation, the bottom of lower base is the disk body with through hole, the top of lower base is two lugs with the perforation corresponding matching of upper pedestal, the length of lug is big than the thickness of upper pedestal, the lug outer upper end is provided with salient point, when last, after lower base assembled, the lower base cover was fixed in the upper pedestal and the activity up and down in perforation of its two lug; During combination, on the lamp socket, lower base combines earlier, upper pedestal is combined into one with stack shell again, after tail-hood is fixedly arranged on stack shell, spring member on it just can electrically contact with dry battery cathode portion and battery is up pushed up, when in use, the rotation of lamp holder lid is up moved, lower base is just oppressed by dry cell and simultaneously past top offset, and make galvanic anode portion pass the disk body of lower base and electrically contact with first conducting strip of upper pedestal, this moment, bulb was shinny, and lamp holder lid to continue up transfer again be the focal length adjustment, opposite, the rotation of lamp holder lid is moved down always, two lug polished object line reflection devices of lower base down being promoted, disk body press fit dry cell is moved down together, is the action of turning on light to making the galvanic anode portion and first conducting strip disengage relation (short circuit).

2, flashlight according to claim 1 focuses on switch, it is characterized in that: be provided with metal rivet in the disk body through hole of lower base.