CN210721392U

CN210721392U - Telescopic touch control capacitance pen

Info

Publication number: CN210721392U
Application number: CN201921312310.1U
Authority: CN
Inventors: 严湘华
Original assignee: Dongguan Huada Electronic Technology Co Ltd
Current assignee: Dongguan Huada Electronic Technology Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-09
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a telescopic touch control capacitance pen, which comprises an outer barrel and an inner barrel, wherein the inner barrel is nested in the outer barrel and is in sliding fit with the outer barrel, the bottom end of the outer barrel is provided with a pen head cover in threaded connection with the outer barrel, the inner wall of the pen head cover is provided with a supporting platform, the supporting platform is elastically connected with the bottom end of the inner barrel, a PCB control panel and a battery electrically connected with the PCB control panel are installed and fixed in the inner barrel, and the bottom end of the PCB control panel is fixed with a capacitance pen head electrically connected with; the top end of the inner cylinder is fixedly connected with a connector, a press rod in sliding fit with the circular hole is installed in the circular hole, a press positioning gear fixedly connected with the press rod is sleeved on the press rod, a clamping block in rotating fit with the connecting block is coaxially sleeved on the connecting block, a slide bar is formed on the side wall of the clamping block at equal intervals, and the top of the slide bar is provided with an oblique angle corresponding to the press positioning gear.

Description

Telescopic touch control capacitance pen

Technical Field

The utility model relates to a touch-control pen technical field specifically is a flexible touch-control electric capacity pen.

Background

A stylus is a small pen-shaped tool used to input commands to a computer screen, a mobile device, a drawing board, and other devices having a touch screen, and a user can select a document or draw by clicking the touch screen with the stylus.

The capacitive pen point is an important structure of the touch capacitive pen, in order to guarantee normal use of the touch capacitive pen, protective measures must be taken for the capacitive pen point, the protective measures of the touch capacitive pen for the capacitive pen point at present usually adopt a mode of inserting and pulling a pen cap, but the pen cap is easy to crack and loose after being inserted and pulled for many times, and the pen cap is easy to lose and difficult to store and is troublesome to use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A telescopic touch control capacitance pen comprises an outer barrel and an inner barrel which is nested in the outer barrel and is in sliding fit with the outer barrel, wherein a pen point cover in threaded connection with the outer barrel is arranged at the bottom end of the outer barrel, a supporting platform is arranged on the inner wall of the pen point cover and is elastically connected with the bottom end of the inner barrel, a PCB control board and a battery electrically connected with the PCB control board are fixedly installed in the inner barrel, and a capacitance pen point electrically connected with the PCB control board is fixedly arranged at the bottom end of the PCB control board;

the top end of the inner cylinder is fixedly connected with a connector, a round hole is formed in the connector, a press rod in sliding fit with the round hole is installed in the round hole, a PCB charging plate electrically connected with a battery is installed in the press rod, a USB charging port corresponding to the top end of the PCB charging plate is formed in one side of the top of the press rod, the bottom end of the press rod penetrates through the round hole, the diameter of the bottom end of the press rod is larger than that of the round hole, an opening is formed in the press rod, a press positioning gear fixedly connected with the press rod is sleeved on the press rod, a clamping block in rotating fit with the connecting block is coaxially sleeved on the connecting block, a slide bar is equidistantly formed on the side wall of the clamping;

the coaxial fixed mounting in top of urceolus has the sleeve, corresponds with the draw runner on the telescopic inner wall and is equipped with the spout, presses the equidistance shaping on the lateral wall of positioning gear to have the slider that corresponds with the spout, and the bottom shaping that lies in the spout on the telescopic inner wall has the triangle draw-in groove.

Furthermore, a protective cover is arranged at the top end of the pressing rod.

Furthermore, a buckle sheet is formed at the top end of the inner cylinder, a buckle groove corresponding to the buckle sheet is formed on the side wall of the bottom of the connector, and the buckle sheet is buckled with the buckle groove to enable the connector to be fixed at the top end of the inner cylinder.

Further, the bottom fixedly connected with adapter of inner tube, the shaping has the snap ring on the lateral wall of adapter, is connected with the spring between snap ring and the supporting platform.

Furthermore, install the shell fragment switch on the PCB control panel, be equipped with the opening that supplies the shell fragment switch to stretch out on the inner tube, press down when the depression bar, the inner tube is whole to be pushed down and makes the shell fragment switch receive the top extrusion of nib lid, and the electric capacity nib circular telegram.

Further, be equipped with control circuit on the PCB control panel, control circuit includes MCU control chip U1, MCU control chip U1's 24 th foot, be connected with crystal oscillator X1 between the 23 th foot, MCU control chip U1's 24 th foot is connected with resistance R20 and is connected with triode Q12 through resistance R20, triode Q12's base is connected with resistance R20, triode Q12's collecting electrode is connected with MOS pipe Q11 and is connected with MOS pipe Q11's grid, MOS pipe Q11's source is connected with battery power management circuit, MOS pipe Q11's drain electrode is connected with driving voltage VCC2, the cross-over connection has resistance R2 between MOS pipe Q11's grid and the source, MCU control chip's 13 th foot is connected with signal acquisition circuit and is connected with the electric capacity nib through signal acquisition circuit.

Furthermore, the battery power management circuit comprises a battery power management chip U4, the model of the battery power management chip U4 is XT4054, a resistor R9 is connected between the 1 st pin of the battery power management chip U4 and the source electrode of the MOS transistor Q11, the 3 rd pin of the battery power management chip U4 is electrically connected with the anode of the battery, and the 4 th pin of the battery power management chip U4 is electrically connected with the PCB charging board.

Further, the signal acquisition circuit comprises a signal acquisition chip IC1, the type of the signal acquisition chip IC1 is DW3946, a resistor R27 is connected between the 5 th pin of the signal acquisition chip IC1 and the 13 th pin of the MCU control chip U1, a resistor R21 is connected between the 2 nd pin of the signal acquisition chip IC1 and the 13 th pin of the MCU control chip U1, a resistor R44 is connected between the 3 rd pin of the signal acquisition chip IC1 and the capacitive pen point, the 3 rd pin and the 6 th pin of the signal acquisition chip IC1 are connected, a resistor R6 is connected between the 1 st pin of the signal acquisition chip IC1 and the resistor R21, a resistor R41 is connected between the 4 th pin and the 5 th pin of the signal acquisition chip IC1, and a signal separation circuit is connected between the 1 st pin and the 4 th pin of the signal acquisition chip IC 1.

Further, the signal separation circuit comprises a signal separator U6, the model of the signal separator U6 is LM1881M, a rectifying circuit W1 is connected between the 1 st pin of the signal separator U6 and the 1 st pin of the signal acquisition chip IC1, a resistor R38 is connected between the 3 rd pin of the signal separator U6 and the 4 th pin of the signal acquisition chip IC1, a capacitor C31 is connected across two ends of a resistor R38, a resistor R39 is connected between the 4 th pin of the signal separator U6 and the driving voltage VCC2, and a light sense L1 is connected between the 1 st pin of the signal separator U6 and the driving voltage VCC 2.

Compared with the prior art, the utility model discloses the beneficial effect who gains does: the utility model discloses novel structure adopts telescopic structure, and is effectual to hide the electric capacity nib in the nib cover, and then makes things convenient for effectual protection electric capacity nib, and convenient and practical has avoided the trouble of the nib to keep.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a telescopic touch control capacitance pen of the present invention.

Fig. 2 is another schematic structural diagram of a retractable touch-control capacitance pen according to the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of fig. 2 at B.

Fig. 5 is a schematic structural view of the middle sleeve of the present invention.

Fig. 6 is a schematic structural diagram of the middle control circuit of the present invention.

Fig. 7 is a schematic structural diagram of a battery power management circuit according to the present invention.

Fig. 8 is a schematic structural diagram of a signal acquisition circuit in the present invention.

Fig. 9 is a schematic structural diagram of the signal separating circuit according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a telescopic touch control capacitance pen comprises an outer cylinder 1 and an inner cylinder 2 nested in the outer cylinder 1 and in sliding fit with the outer cylinder 1, wherein a pen head cover 3 in threaded connection with the bottom end of the outer cylinder 1 is arranged at the bottom end of the outer cylinder 1, a supporting platform 31 is arranged on the inner wall of the pen head cover 3, the supporting platform 31 is elastically connected with the bottom end of the inner cylinder 2, a PCB control board 4 and a battery 5 electrically connected with the PCB control board 4 are installed and fixed in the inner cylinder 2, and a capacitance pen head 6 electrically connected with the PCB control board 4 is fixed at the bottom end of the;

the top end of the inner cylinder 2 is fixedly connected with a connector 21, a round hole is formed in the connector 21, a press rod 7 in sliding fit with the round hole is installed in the round hole, a PCB charging board 8 electrically connected with the battery 5 is installed in the press rod 7, a USB charging port 71 corresponding to the top end of the PCB charging board 8 is formed in one side of the top end of the press rod 7, the bottom end of the press rod 7 penetrates through the round hole, the diameter of the bottom end of the press rod 7 is larger than that of the round hole, an opening is formed in the bottom end of the press rod 7, a press positioning gear 8 fixedly connected with the press rod 7 is sleeved on the press rod 7, a clamping block 9 in rotating fit with the connector 21 is coaxially sleeved on the connector 21, a sliding strip 91 is formed on the side wall of;

the top end of the outer cylinder 1 is coaxially and fixedly provided with a sleeve 11, the inner wall of the sleeve 11 is provided with a sliding groove 111 corresponding to the sliding strip 91, the side wall of the pressing positioning gear 8 is provided with sliding blocks 81 corresponding to the sliding groove 111 in an equidistant manner, and the inner wall of the sleeve 11 is provided with a triangular clamping groove 112 at the bottom end of the sliding groove 111.

Further, a protective cover 72 is provided at the top end of the pressing lever 7.

Furthermore, a buckle sheet is formed at the top end of the inner cylinder 2, a buckle groove corresponding to the buckle sheet is formed on the side wall of the bottom of the connector 21, and the buckle sheet is buckled with the buckle groove to fix the connector 21 at the top end of the inner cylinder 2.

Further, the bottom end of the inner cylinder 2 is fixedly connected with the adapter 22, a snap ring 221 is formed on the side wall of the adapter 22, and a spring 23 is connected between the snap ring 221 and the supporting platform 31.

Furthermore, a spring switch 41 is installed on the PCB control board 4, an opening 24 for the spring switch 41 to extend out is formed on the inner cylinder 2, when the pressing rod 7 is pressed down, the inner cylinder 2 is pressed down integrally to make the spring switch 41 pressed by the top end of the pen head cover 3, and the capacitive pen head 6 is powered on.

Further, be equipped with control circuit on the PCB control panel, control circuit includes MCU control chip U1, MCU control chip U1's 24 th foot, be connected with crystal oscillator X1 between the 23 th foot, MCU control chip U1's 24 th foot is connected with resistance R20 and is connected with triode Q12 through resistance R20, triode Q12's base is connected with resistance R20, triode Q12's collecting electrode is connected with MOS pipe Q11 and is connected with MOS pipe Q11's grid, MOS pipe Q11's source is connected with battery power management circuit, MOS pipe Q11's drain electrode is connected with driving voltage VCC2, the cross-over connection has resistance R2 between MOS pipe Q11's grid and the source, MCU control chip's 13 th foot is connected with signal acquisition circuit and is connected with electric capacity nib 6 through signal acquisition circuit.

Furthermore, the battery power management circuit comprises a battery power management chip U4, the model of the battery power management chip U4 is XT4054, a resistor R9 is connected between the 1 st pin of the battery power management chip U4 and the source electrode of the MOS transistor Q11, the 3 rd pin of the battery power management chip U4 is electrically connected with the positive electrode of the battery 41, and the 4 th pin of the battery power management chip U4 is electrically connected with the PCB charging board.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A telescopic touch control capacitance pen comprises an outer barrel and an inner barrel which is nested in the outer barrel and is in sliding fit with the outer barrel, and is characterized in that a pen point cover in threaded connection with the outer barrel is arranged at the bottom end of the outer barrel, a supporting platform is arranged on the inner wall of the pen point cover and is elastically connected with the bottom end of the inner barrel, a PCB control board and a battery electrically connected with the PCB control board are fixedly installed in the inner barrel, and a capacitance pen point electrically connected with the PCB control board is fixedly arranged at the bottom end of the PCB control board;

2. The retractable touch-control capacitance pen as claimed in claim 1, wherein a protective cover is provided on the top end of the pressing rod.

3. The retractable touch control capacitance pen as recited in claim 1, wherein a buckle piece is formed on the top end of the inner cylinder, a buckle slot corresponding to the buckle piece is formed on the bottom side wall of the connector, and the buckle piece is buckled with the buckle slot to fix the connector on the top end of the inner cylinder.

4. The telescopic touch control capacitance pen as claimed in claim 1, wherein the bottom end of the inner barrel is fixedly connected with an adapter, a snap ring is formed on the side wall of the adapter, and a spring is connected between the snap ring and the support platform.

5. The retractable touch-control capacitance pen as claimed in claim 1, wherein the PCB control board is provided with a dome switch, the inner barrel is provided with an opening for the dome switch to extend out, when the pressing rod is pressed down, the inner barrel is pressed down integrally to make the dome switch pressed by the top end of the pen head cover, and the capacitance pen head is powered on.

6. The retractable touch control capacitance pen as claimed in claim 1, wherein a control circuit is provided on the PCB control board, the control circuit includes an MCU control chip U1, a crystal oscillator X1 is connected between the 24 th pin and the 23 th pin of the MCU control chip U1, the 24 th pin of the MCU control chip U1 is connected to a resistor R20 and to a triode Q12 through a resistor R20, the base of the triode Q12 is connected to the resistor R20, the collector of the triode Q12 is connected to a MOS transistor Q11 and to the gate of the MOS transistor Q11, the source of the MOS transistor Q11 is connected to a battery power management circuit, the drain of the MOS transistor Q11 is connected to a driving voltage VCC2, a resistor R2 is connected across between the gate and the source of the MOS transistor Q11, and the 13 th pin of the MCU control chip is connected to a signal acquisition circuit and to the pen head capacitor through a signal acquisition circuit.

7. The retractable touch-control capacitive pen of claim 6, wherein the battery power management circuit comprises a battery power management chip U4, the model of the battery power management chip U4 is XT4054, a resistor R9 is connected between the 1 st pin of the battery power management chip U4 and the source of the MOS transistor Q11, the 3 rd pin of the battery power management chip U4 is electrically connected with the positive electrode of the battery, and the 4 th pin of the battery power management chip U4 is electrically connected with the PCB charging board.

8. The telescopic touch control capacitive pen according to claim 6, wherein the signal acquisition circuit comprises a signal acquisition chip IC1, the signal acquisition chip IC1 is DW3946 in model number, a resistor R27 is connected between the 5 th pin of the signal acquisition chip IC1 and the 13 th pin of the MCU control chip U1, a resistor R21 is connected between the 2 nd pin of the signal acquisition chip IC1 and the 13 th pin of the MCU control chip U1, a resistor R44 is connected between the 3 rd pin of the signal acquisition chip IC1 and the capacitive pen point, the 3 rd pin of the signal acquisition chip IC1 is connected with the 6 th pin, a resistor R6 is connected between the 1 st pin of the signal acquisition chip IC1 and the resistor R21, a resistor R41 is connected between the 4 th pin and the 5 th pin of the signal acquisition chip IC1, and a signal separation circuit is connected between the 1 st pin and the 4 th pin of the signal acquisition chip IC 1.

9. The retractable touch-control capacitive pen of claim 8, wherein the signal separation circuit comprises a signal separator U6, the signal separator U6 is LM1881M, a rectifying circuit W1 is connected between the 1 st pin of the signal separator U6 and the 1 st pin of the signal acquisition chip IC1, a resistor R38 is connected between the 3 rd pin of the signal separator U6 and the 4 th pin of the signal acquisition IC1, a capacitor C31 is connected across two ends of the resistor R38, a resistor R39 is connected between the 4 th pin of the signal separator U6 and the driving voltage VCC2, and a light sense L1 is connected between the 1 st pin of the signal separator U6 and the driving voltage VCC 2.