A telescopic table lamp

Abstract

The present invention provides a telescopic desk lamp, which relates to the field of desk lamps. The present invention comprises a desk lamp module 2 and a mobile power supply 1. The desk lamp module 2 is connected to the mobile power supply 1 to form the desk lamp. The desk lamp module 2 can be disassembled. The desk lamp module 2 adopts the design of a telescopic desk lamp pole. The telescopic desk lamp pole adopts the design of arranging an inner telescopic pole or a spring wire inside an outer telescopic pole, which makes full use of the space inside the outer telescopic pole. Under the condition of the same extension length, the volume of the telescopic desk lamp pole after contraction is smaller and more portable.

Description

Technical Field

[0001] The invention relates to the field of table lamps, and in particular to a telescopic table lamp. Background Art

[0002] The current portable desk lamps use folding and hose-type desk lamp poles. The folding desk lamp is still large in size after being folded, which is inconvenient to carry. After the hose-type desk lamp is bent, its shape is irregular, which is inconvenient to put in a bag and has poor portability.

[0003] Currently, there is a desk lamp that uses a telescopic desk lamp pole. The telescopic desk lamp pole is composed of two parallel metal telescopic rods. The two metal telescopic rods are extended together. The two metal telescopic rods also serve as wires to electrically connect the lamp head and the base. When the telescopic desk lamp pole is in an extended state, the two metal telescopic rods are exposed to the external environment at the same time, and it is easy to contact metal objects at the same time, thereby causing a short circuit and damaging the internal circuit of the desk lamp. Summary of the invention

[0004] The invention provides a telescopic table lamp, which solves all the problems of the background technology.

[0005] The technical solution adopted by the present invention is:

[0006] A telescopic table lamp comprises a lamp holder, a telescopic table lamp pole and a lamp head. The telescopic table lamp pole comprises an outer telescopic rod and an inner telescopic rod. The inner telescopic rod is arranged inside the outer telescopic rod. The outer telescopic rod drives the inner telescopic rod to extend and retract together. The outer telescopic rod and the inner telescopic rod are insulated from each other. The outer telescopic rod and the inner telescopic rod each serve as a conductor.

[0007] The inner telescopic rod can be replaced by a spring wire, and the outer telescopic rod drives the spring wire to extend and retract together, and at least one conductor is arranged in the spring wire.

[0008] An LED is arranged in the lamp head, and a battery, a charging circuit, and a desk lamp driving circuit are arranged in the lamp holder. The charging circuit is used for charging the battery.

[0009] One end of the telescopic desk lamp pole is connected to the lamp holder, and the other end of the telescopic desk lamp pole is connected to the lamp head. The desk lamp driving circuit realizes electrical connection with the LED through the telescopic desk lamp pole.

[0010] The beneficial effects of the present invention are:

[0011] The present invention solves the problem that foldable and hose-type desk lamps are not portable. The desk lamp module of the present invention adopts a telescopic desk lamp pole. The telescopic desk lamp pole adopts a design in which an inner telescopic rod or a spring wire is arranged inside an outer telescopic rod, thereby making full use of the space inside the outer telescopic rod. When the extension length is the same, the volume of the telescopic desk lamp pole after contraction is smaller and more portable.

[0012] The present invention solves the problem of a desk lamp pole composed of two parallel metal telescopic rods. The telescopic desk lamp pole of the present invention adopts a design in which an inner telescopic rod or a spring wire is arranged inside an outer telescopic rod. The outer telescopic rod drives the inner telescopic rod and the spring wire to extend and retract together. The outer telescopic rod, the inner telescopic rod and the spring wire have the function of a conductor. No matter whether the telescopic desk lamp pole is in an extended or contracted state, only the outer telescopic rod is exposed to the external environment and will not be short-circuited due to contact with external metal objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The desk lamp module 2 is connected to the mobile power supply 1 to form a desk lamp.

[0014] Figure 2 This is the left side view of the desk lamp.

[0015] Figure 3 It is a three-dimensional diagram of the mobile power supply 1.

[0016] Figure 4 It is a front view of the mobile power supply 1.

[0017] Figure 5 It is a right side view of the mobile power supply 1.

[0018] Figure 6 It is a three-dimensional diagram of the desk lamp module 2 after it is collapsed.

[0019] Figure 7 1 is a front view of the drive assembly 15.

[0020] Figure 8 It is a perspective view of the desk lamp module 2 when it is unfolded.

[0021] Fig. 9 It is an exploded view of the telescopic lamp pole 14 .

[0022] Fig.10 It is a circuit schematic diagram of the mobile power supply 1.

[0023] Fig.11 This is the circuit schematic diagram of desk lamp module 2.

[0024] Description of reference numerals:

[0025] Power bank 1, desk lamp module 2, USB charging port 3, power display LED 4, button 5, connecting socket 6, first contact 7, second contact 8, third contact 9, fourth contact 10, USB output port 11, lighting assembly 12, hinge 13, telescopic desk lamp pole 14, driving assembly 15, connector 16, fifth contact 17, sixth contact 18, seventh contact 19, eighth contact 20, top fixing structure 21, bottom fixing structure 22, outer telescopic rod 23, inner telescopic rod 24. DETAILED DESCRIPTION

[0026] like Figure 1 As shown, the device includes a mobile power source 1 and a desk lamp module 2. After the desk lamp module 2 is unfolded, it is connected to the mobile power source 1 to form a desk lamp.

[0027] like Figure 3 As shown, the mobile power supply 1 is provided with a connection socket 6 for connecting the desk lamp module 2; Figure 4 As shown, the connection base 6 is provided with a first contact member 7, a second contact member 8, a third contact member 9, and a fourth contact member 10; Figure 6 , Figure 8 As shown, the desk lamp module 2 is provided with a driving component 15, and the driving component 15 is provided with a connector 16, as shown in FIG. Figure 7 As shown, the connector 16 is provided with a fifth contact 17, a sixth contact 18, a seventh contact 19, and an eighth contact 20. When the connector 16 is connected to the connector base 6, the first contact 7, the second contact 8, the third contact 9, and the fourth contact 10 are electrically connected to the fifth contact 17, the sixth contact 18, the seventh contact 19, and the eighth contact 20, respectively.

[0028] like Figure 3 As shown, the mobile power supply 1 is provided with a USB charging interface 3, and the USB charging interface 3 is used to connect to an external power source; Figure 5 As shown, the mobile power supply 1 is provided with a USB output interface 11, and the USB output interface 11 is used to charge the mobile device; Fig.10 As shown, the mobile power supply 1 is provided with a battery, a charging circuit, a boost circuit, and an MCU. The Vout+ terminal of the charging circuit, the Vin+ terminal of the boost circuit, and the positive electrode of the battery are electrically connected together, and the GND terminal of the charging circuit, the GND terminal of the boost circuit, the GND pin of the MCU, and the negative electrode of the battery are electrically connected together. The charging circuit is used to charge the battery, and the battery supplies power to the boost circuit. The first and second diodes are electrically connected between the Vin+ terminal of the charging circuit, the positive electrode of the battery, and the VCC pin of the MCU, respectively. Both the external power supply and the battery can supply power to the MCU.

[0029] like Fig.11 As shown, the desk lamp module 2 is provided with a desk lamp driving circuit and a desk lamp LED, the Vout+ and Vout- terminals of the desk lamp driving circuit are electrically connected to the positive and negative electrodes of the desk lamp LED respectively, and the Vin+ and Vin- terminals of the desk lamp driving circuit are electrically connected to the fifth contact 17 and the eighth contact 20 of the connector 16 respectively; Fig.10 As shown, the first contact piece 7 and the fourth contact piece 10 of the connection socket 6 are electrically connected to the positive and negative electrodes of the battery respectively. When the desk lamp module 2 is connected to the connection socket 6, the battery supplies power to the desk lamp module 2.

[0030] like Fig.11As shown, the seventh contact 19 of the connector 16 is electrically connected to the eighth contact 20. Fig.10 As shown, the third contact 9 of the connecting socket 6 is electrically connected to the first level detection pin of the MCU. Since the fourth contact 10 of the connecting socket 6 is electrically connected to the negative pole of the battery, when the desk lamp module 2 is connected to the mobile power supply 1, the eighth contact 20 and the seventh contact 19 are at a low level, and the first level detection pin is thus at a low level. The MCU determines whether the desk lamp module 2 is connected to the mobile power supply 1 by detecting the level of the first level detection pin.

[0031] like Fig.11 As shown, the sixth contact 18 of the connector 16 is electrically connected to the dimming end of the desk lamp driving circuit, as shown in FIG. Fig.10 As shown, the second contact piece 8 of the connecting socket 6 is electrically connected to the PWM output pin of the MCU. When the desk lamp module 2 is connected to the mobile power supply 1, the MCU adjusts the PWM signal of the PWM output pin to realize the switching and dimming of the desk lamp.

[0032] like Figure 3 As shown, the mobile power supply 1 is provided with a power display LED 4 and a button 5. Fig.10 As shown, the positive electrode of the battery is electrically connected to the first voltage detection pin of the MCU for detecting the voltage of the battery. The power display LED 4 and the button 5 are electrically connected to the MCU for displaying the power of the battery. The button 5 is also used for turning the flashlight on and off and dimming. If the desk lamp module 2 is not connected to the mobile power supply 1, press the button 5 to display the power of the mobile power supply 1 for 2 seconds. Continue to press the button to display the power again. If the mobile power supply 1 is connected to the desk lamp module 2, press the button 5 to display the power of the mobile power supply 1 for 2 seconds. Press the button again. If the time interval between the two presses is within 2 seconds, the desk lamp is dimmed or turned on. If the time interval between the two presses exceeds 2 seconds, the remaining power of the mobile power supply 1 is displayed again.

[0033] like Figure 6 , Figure 8 As shown, the desk lamp module 2 includes a lighting component 12, a hinge 13, a telescopic desk lamp pole 14, and a driving component 15. The lighting component 12 and the driving component 15 are respectively connected to the top and bottom ends of the telescopic desk lamp pole 14 through the hinge 13. The lighting component 12 and the driving component 15 can rotate toward or against each other and be parallel to or in a straight line with the telescopic desk lamp pole 14.

[0034] like Fig. 9As shown, the telescopic desk lamp pole 14 includes a top fixing structure 21, a bottom fixing structure 22, an outer telescopic rod 23, and an inner telescopic rod 24. The outer telescopic rod 23 is composed of a rounded rectangular hollow metal rod and a copper sheet, and the inner telescopic rod 24 is composed of a circular hollow metal rod and a copper sheet. The outer telescopic rod 23 and the inner telescopic rod 24 are telescopically extended and retracted using the telescopic principle of a pull-rod antenna. The inner telescopic rod 24 is arranged inside the outer telescopic rod 23. The top fixing structure 21 fixes the innermost hollow metal rods of the outer telescopic rod 23 and the inner telescopic rod 24 together, and the bottom fixing structure 22 fixes the outermost hollow metal rods of the outer telescopic rod 23 and the inner telescopic rod 24 together. The outer telescopic rod 23 thereby drives the inner telescopic rod 24 to retract and retract together. The outer telescopic rod 23 and the inner telescopic rod 24 are insulated from each other. Since the innermost and outermost hollow metal rods of the outer telescopic rod 23 and the inner telescopic rod 24 are conductive, the outer telescopic rod 23 and the inner telescopic rod 24 each serve as a conductor.

[0035] like Figure 8 and Fig.11 As shown, the desk lamp LED is arranged in the lighting assembly 12, the desk lamp driving circuit is arranged in the driving assembly 15, the positive and negative electrodes of the desk lamp LED are respectively electrically connected to the innermost hollow metal rods of the outer telescopic rod 23 and the inner telescopic rod 24, and the positive and negative output ends of the desk lamp driving circuit are respectively electrically connected to the outermost hollow metal rods of the outer telescopic rod 23 and the inner telescopic rod 24, so as to realize the electrical connection between the desk lamp LED and the desk lamp driving circuit. The inner telescopic rod 24 can be replaced by a spring wire, which is arranged inside the outer telescopic rod 23, and the two ends of the spring wire are respectively fixed on the innermost and outermost hollow metal rods of the outer telescopic rod 23, and the outer telescopic rod 23 drives the spring wire to extend and retract together, and at least one conductor is arranged inside the spring wire.

[0036] like Figure 4 As shown, the connection socket 6 is arranged in the middle of both ends of the mobile power supply 1. Figure 1 As shown, in the desk lamp, the driving component 15 is located in the middle of the two ends of the mobile power supply 1, as shown in FIG. Figure 2 As shown, the bottom surfaces of the driving assembly 15 and the mobile power supply 1 are in the same plane and constitute the base of the table lamp. The base of the table lamp is in a "T" shape, and the table lamp is not easy to fall over.

[0037] like Figure 1 As shown, when the desk lamp module 2 is in the unfolded state, the lighting height can reach 37 cm, reaching the lighting height of the reading desk lamp on the market. The lighting assembly 12 can move forward and backward and up and down, and the user can adjust the appropriate lighting range, such as Figure 6 As shown, when the desk lamp module 2 is in the retracted state, its length, width and height are only 14.3cm*1.8cm*2cm, which is small in size and easy to carry.

Claims

1. A telescopic desk lamp, comprising a lamp holder, a telescopic desk lamp pole, and a lamp cap, characterized in that: The telescopic table lamp pole comprises an outer telescopic rod and an inner telescopic rod, wherein the inner telescopic rod is arranged inside the outer telescopic rod, the outer telescopic rod drives the inner telescopic rod to telescope together, the outer telescopic rod and the inner telescopic rod are insulated from each other, and the outer telescopic rod and the inner telescopic rod each serve as a conductor; The top fixing structure fixes the innermost hollow metal rods of the outer telescopic rod and the inner telescopic rod together, and the bottom fixing structure fixes the outermost hollow metal rods of the outer telescopic rod and the inner telescopic rod together; The positive and negative poles of the desk lamp LED are respectively electrically connected to the innermost hollow metal rods of the outer telescopic rod and the inner telescopic rod, and the positive and negative output ends of the desk lamp driving circuit are respectively electrically connected to the outermost hollow metal rods of the outer telescopic rod and the inner telescopic rod, thereby realizing the electrical connection between the desk lamp LED and the desk lamp driving circuit.

2. A telescopic desk lamp according to claim 1, characterized in that: The lamp head is provided with an LED, and the lamp holder is provided with a battery, a charging circuit, and a desk lamp driving circuit. The charging circuit is used for charging the battery.

3. A telescopic desk lamp according to claim 1 or 2, characterized in that: One end of the telescopic desk lamp pole is connected to the lamp holder, and the other end of the telescopic desk lamp pole is connected to the lamp head. The desk lamp driving circuit is electrically connected to the LED through the telescopic desk lamp pole.

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