CN87216819U - Foldable multifunctional safety table lamp - Google Patents

Abstract

The utility model relates to a safety table lamp, in particular to a foldable multifunctional safety table lamp, adopting a step down transformer, an adjustable expansion and contraction supporting arm and a rectifying regulated power supply. The utility model can work under the safe voltage and ensure the illumination height and the directional regulation, and simultaneously, the illumination of the lamp light can be regulated. The safety table lamp can also be used as the external power source of a minitype electric appliance, and the safety table lamp can be connected with a self-provided direct-current power source to work under the circumstance of no alternating current supply. The utility model has the advantages of one object with multifunction, novel structure, convenience for carrying. The safety table lamp can be folded integrally and is convenient and suitable, being an ideal safety multifunctional table lamp.

Description

Foldable multifunctional safety table lamp

The utility model relates to a kind of safe desk lamp, particularly a kind of folding safety multi-function desk lamp.

Existing safe desk lamp is the fixation type safety desk lamp of the 36V that uses on the lathe, and its supporting arm is coiled pipe or many link supportings structure, and height and direction can be regulated, but should not move and carry function singleness, cost height, and being subjected to power limitations, the inconvenience of general family is used.

The purpose of this utility model is, at above-mentioned the deficiencies in the prior art, provides a kind of office, family expenses of being suitable for, and is convenient to machinery again, car lighting is used, and is particularly suitable for the folding safety multi-function desk lamp of field work.

Technical solution of the present utility model is that employing lampshade, lamp holder, bulb, base, switch, plug is characterized in that, use flexible adjustable supporting arm, can change transformer, the regulator rectifier circuit of supply voltage.In the supporting arm upper end movable supporting rack, lampshade are housed, the lamp holder that is connected with transformer, dimmer switch is contained on the movable supporting rack, supporting arm lower end and base flexibly connect, the transformer regulator rectifier circuit is contained in the base, the primary coil of transformer and switch connect through power line and plug, the secondary coil two ends and the regulator rectifier circuit of transformer join, dimmer switch be attempted by on the secondary coil of transformer after lamp holder is connected in series, the output and the jack of regulator rectifier circuit join.Switch and some jacks are contained on the base, and lampshade can be integrated with base after shrinking with supporting arm, are convenient to collect and carry.Its operation principle is, is connected on when plug on the power supply of 220V, opens switch, and transformer is promptly started working, and the secondary both end voltage of transformer is added on the rectifier bridge of regulator rectifier circuit, through rectification, transistor stabilized, obtain galvanic current and press output.Open dimmer switch simultaneously, the desk lamp bulb is luminous, dimmer switch is placed in the tap of transformer secondary output coil, can change the lighting voltage of desk lamp, reaches the effect of light modulation.Additional external power supply jack is not having can to insert dc source under the situation of AC power, guarantees that the illumination of desk lamp needs.

Advantage of the present utility model is, can change lighting voltage as required, regulate the illuminance of light, the adjusting that had both kept illuminator level and direction, has the reliable and secure operating voltage that is lower than 36V again, simultaneously can be used as radio cassette player, recorder, the external power supply of small-sized electrical appliance such as electronic calculator, one-object-many-purposes is not having under the situation of ac power supply, can use power autonomous assurance illumination needs by the external direct current power supply jack, the utility model novel structure can fold, after supporting arm shrinks fully, lampshade and base can be integrated, be convenient to collect and carry, convenient being suitable for is a kind of comparatively ideal multifunctional safety desk lamp.

Fig. 1, structural representation of the present utility model.

Fig. 2, part schematic diagram of the present utility model.

Fig. 3, electrical schematic diagram of the present utility model.

Fig. 4, the utility model schematic diagram that is integrated.

Below in conjunction with accompanying drawing embodiment of the present utility model is described:

Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model is by lampshade ［ 1 ］, bulb ［ 2 ］, flexible adjustable supporting arm ［ 3 ］, switch ［ 4 ］, plug ［ 5 ］, base ［ 6 ］, dimmer switch ［ 7 ］, transformer ［ 17 ］, regulator rectifier circuit ［ 18 ］, jack compositions such as ［ 8 ］, lampshade ［ 1 ］ is made of outer cover ［ 14 ］ and inner cover ［ 11 ］, and supporting arm ［ 3 ］ is made of the metal tube ［ 12 ］ of three joint different-diameters.Lampshade ［ 1 ］ is contained in the upper end of supporting arm ［ 3 ］, the lamp holder ［ 9 ］ that is contained in the movable supporting rack ［ 10 ］ of supporting arm ［ 3 ］ upper end and is contained on the movable supporting rack ［ 10 ］ is inserted in the lampshade ［ 1 ］ by rest pad ［ 19 ］, hinges ［ 13 ］ is equipped with in the bottom of supporting arm ［ 3 ］, link to each other with base ［ 6 ］ by hinges ［ 13 ］, base ［ 6 ］ is made of loam cake ［ 15 ］ and go to the bottom ［ 16 ］, the end that hinges ［ 13 ］ links to each other with base ［ 6 ］ is fixed on the loam cake ［ 15 ］ by screw, switch ［ 4 ］ is housed above the loam cake ［ 15 ］, and switch ［ 4 ］ is power switch (K ₁), it (is K switch that dimmer switch ［ 7 ］ is equipped with in the side of loam cake ［ 15 ］ ₂).Transformer ［ 17 ］, regulator rectifier circuit ［ 18 ］ are contained in the base ［ 6 ］, be fixed on go to the bottom ［ 16 ］, the primary coil of transformer ［ 17 ］ is through switch ［ 4 ］, connect by power line ［ 20 ］ and plug ［ 5 ］, for the sake of security, be connected to fuse RD between the primary coil of transformer ［ 17 ］ and switch ［ 4 ］, the secondary coil two ends of transformer ［ 17 ］ and regulator rectifier circuit ［ 18 ］ connect, and regulator rectifier circuit ［ 18 ］ is by silicon bridge, resistance R, electrochemical capacitor C, transistor BG3A * 83, and voltage-stabiliser tube CW ₁, CW ₂, CW ₃Constitute, the output of regulator rectifier circuit ［ 18 ］ and three jacks ［ 8 ］ join, according to CW ₁, CW ₂, CW ₃Voltage stabilizing value difference, when rectification seamless circuit ［ 18 ］ is worked, three jacks ［ 8 ］ can be exported 9V, 6V, three groups of different DC voltages of 3V respectively, owing to consider the output load safety of transformer ［ 17 ］, only allow to use one group of output dc voltage each time, promptly can only use a direct current output plughole ［ 8 ］, jack ［ 8 ］ has 4, be contained in the side of go to the bottom ［ 16 ］, the input jack of a jack ［ 8 ］ as external dc power supply wherein arranged, this jack and dimmer switch ［ 7 ］ K ₂₂End, an end of the secondary coil of transformer ［ 17 ］ connects, and uses for illumination with the dc source that guarantees under the situation of AC-less power, can insert to provide for oneself.Dimmer switch ［ 7 ］ (is K ₂) movable contact, three fixed junctures, fixed juncture K arranged ₂₁Connect the tap of transformer ［ 17 ］ secondary coil, fixed juncture K ₂₂Be connected fixed juncture K with the jack of external dc power supply ₂₃Join with an end of transformer ［ 17 ］ secondary coil, dimmer switch ［ 7 ］ (is K ₂) movable contact.Join by lamp holder ［ 9 ］ and bulb ［ 2 ］.

Inner cover ［ 11 ］ line aluminium alloy is made, and outer cover ［ 14 ］, loam cake ［ 15 ］, go to the bottom ［ 16 ］ are that the ABS engineering plastics are made.

The secondary of transformer ［ 17 ］ can be exported 12V and two groups of alternating voltages of 8V.

When the utility model folded, lampshade ［ 1 ］ and base ［ 6 ］ coincide and rising, and resemble rectangular plastics and close, and be namely attractive in appearance, is convenient to again preservation and carries.

The utility model has that external connection battery closes and timer.

Claims (9)

1, the folding safety multi-function desk lamp, lampshade [1] is arranged, lamp holder [9], bulb [2], base [6], switch [4], plug [5], it is characterized in that, used flexible adjustable supporting arm [3], can change the transformer [17] of supply voltage, regulator rectifier circuit [18], in the upper end of supporting arm [3] movable supporting rack [10] is housed, lampshade [1], supporting arm [3] lower end and base [6] flexibly connect, lamp holder [9] is contained in above the movable supporting rack [10], the primary coil of transformer [17] and switch [4] connect through power line [20] and plug [5], the secondary coil two ends of transformer [17] link to each other with rectifying voltage regulator [18], dimmer switch [7] be attempted by on the secondary coil of transformer [17] after lamp holder [9] is connected in series, transformer [17] regulator rectifier circuit [18] is contained in the base [6], the output of regulator rectifier circuit [18] and jack [8] join, switch [4], dimmer switch [7] and several jacks [8] are contained on the base [6].

2, folding safety multi-function desk lamp according to claim 1 is characterized in that, lampshade ［ 1 ］ is made of outer cover ［ 14 ］ and inner cover ［ 11 ］, and outer cover ［ 14 ］ is to make with the ABS engineering plastics, and inner cover ［ 11 ］ line aluminium alloy is made.

3, folding safety multi-function desk lamp according to claim 1 is characterized in that, supporting arm ［ 3 ］ is made of the metal tube ［ 12 ］ of three joint different-diameters.

4, according to the folding safety multi-function desk lamp of claim 1, it is characterized in that base ［ 6 ］ is made up of loam cake ［ 15 ］ and go to the bottom ［ 16 ］.

5, folding safety multi-function desk lamp according to claim 1 is characterized in that, movable supporting rack ［ 10 ］, lamp holder ［ 9 ］ are inserted in the lampshade ［ 1 ］ by rest pad ［ 19 ］.

6, folding safety multi-function desk lamp according to claim 1 is characterized in that, hinges ［ 13 ］ is equipped with in supporting arm ［ 3 ］ bottom, is connected with base ［ 6 ］ by hinges ［ 13 ］.

7, folding safety multi-function desk lamp according to claim 6 is characterized in that, hinges ［ 13 ］ is fixed on the loam cake ［ 15 ］ of base ［ 6 ］ by screw.

8, folding safety multi-function desk lamp according to claim 1 is characterized in that, is contained in that in the some jacks ［ 8 ］ on the base ［ 6 ］ jack to be arranged be the external power supply input jack.

9, folding safety multi-function desk lamp according to claim 1 is characterized in that, is connected to fuse RD between the primary coil of transformer ［ 17 ］ and the switch ［ 4 ］.

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