阅读说明：本技术 一种直线多选开关及包括该开关的智能便签系统 (Linear multi-selection switch and intelligent note system comprising same ) 是由 童丹桂 于 2020-04-28 设计创作，主要内容包括：本发明特别涉及一种直线多选开关,包括开关底座、电机、丝杆、滑块、正极片以及负极触头,所述的电机和丝杆同轴相连且电机用于驱动丝杆转动,电机和丝杆固定安装在开关底座上且丝杆的轴平行于开关底座的板面,丝杆和滑块构成丝杆螺母配合；滑块上固定有正极片,正极片包括方形本体和正极触头,开关底座上设置有负极触头,正极触头和负极触头的个数一致,电机驱动滑块沿丝杆长度方向运动在任意位置时只有一个正极触头和负极触头相连通；并公开了一种包括该开关的智能便签系统。本开关可自动、快速的实现换挡,多个正负极触头的设置避免了单一触头的快速磨损,延长使用寿命,同时还能在较小的位移范围内实现不同正负极触头的连通,响应速度快。(The invention particularly relates to a linear multi-selection switch which comprises a switch base, a motor, a screw rod, a sliding block, a positive plate and a negative contact, wherein the motor is coaxially connected with the screw rod and is used for driving the screw rod to rotate; a positive plate is fixed on the sliding block and comprises a square body and a positive contact, a negative contact is arranged on the switch base, the number of the positive contact is consistent with that of the negative contact, and only one positive contact is communicated with the negative contact when the sliding block is driven by the motor to move at any position along the length direction of the screw rod; an intelligent note system comprising the switch is also disclosed. The switch can automatically and quickly realize gear shifting, quick abrasion of a single contact is avoided due to the arrangement of the positive and negative contacts, the service life is prolonged, meanwhile, the communication of the different positive and negative contacts can be realized in a smaller displacement range, and the response speed is high.)

1. A straight line multi-selection switch is characterized in that: the switch comprises a switch base (31), a motor (32), a screw rod (33), a sliding block (34), a positive plate (35) and a negative contact (36), wherein the motor (32) is coaxially connected with the screw rod (33), the motor (32) is used for driving the screw rod (33) to rotate, the motor (32) and the screw rod (33) are fixedly arranged on the switch base (31), the shaft of the screw rod (33) is parallel to the plate surface of the switch base (31), and the screw rod (33) and the sliding block (34) form screw rod nut matching; the positive pole piece (351) is fixed on the sliding block (34), the positive pole piece (35) comprises a square body (351) and a positive pole contact (352), a negative pole contact (36) is arranged on the switch base (31), the number of the positive pole contacts (352) is consistent with that of the negative pole contacts (36), and only one positive pole contact (352) is communicated with the negative pole contact (36) when the sliding block (34) is driven by the motor (32) to move along the length direction of the screw rod (33) at any position.

2. The linear multiple-selection switch according to claim 1, wherein the positive contacts (352) and the negative contacts (36) are equally spaced, and two adjacent positive contacts (352) are spaced L apart₁A distance L between two adjacent negative contacts (36)₂Width of positive and negative contacts L₃And the number k of the positive and negative electrode contacts meets the following formula:

3. the linear multiple-selection switch of claim 2, wherein said L₂＞L₁(ii) a The switch base (31) is square, the axis of the screw rod (33) is parallel to the long edge of the switch base (31), and the switchFine grooves are uniformly arranged at the edge of one long edge of the base (31) at intervals, conducting strips are inserted into the fine grooves to form a negative electrode contact (36), and holes are formed in the parts of the conducting strips extending to the outer sides of the fine grooves to facilitate connection of wires; the square body (351) of the positive plate (351) is perpendicular to the switch base (31) and is parallel to the shaft of the screw rod (33), the lower end edge of the square body (351) is evenly provided with the positive contacts (352) at intervals, the lower end face of each positive contact (352) is abutted to the upper end face of the corresponding negative contact (36), and the square body (351) is provided with holes for connecting wires conveniently.

4. An intelligent note system comprising the linear multi-selection switch of claim 1, wherein: including drawing pin (10), picture peg (20), shell (50), sharp many choice switch (30) and control module (40), shell (50) be used for holding picture peg (20), sharp many choice switch (30) and control module (40), the memo is inserted through drawing pin (10) and is arranged in picture peg (20), be provided with sound production or luminous component in drawing pin (10), vertically and horizontally staggered's circuit has been arranged in picture peg (20), control module (40) switch on through a certain vertical line in sharp many choice switch (30) control picture peg (20), a certain horizontal line and drawing pin (10) make drawing pin (10) sound or luminous realization remind.

5. The intelligent note system of claim 4, wherein: picture peg (20) include base (21), base (21) are square box-like, horizontal conducting strip (22) have been arranged from bottom to top in proper order in base (21), vertical conducting strip (23) and bubble cotton layer (24), a plurality of horizontal conducting strip (22) adjacent arrangement, a plurality of vertical conducting strip (23) adjacent arrangement, perpendicular each other of horizontal conducting strip (22) and vertical conducting strip (23), every horizontal conducting strip (22) and vertical conducting strip (23) all are provided with insulating outer (221), be provided with on the adjacent both sides periphery wall of base (21) and lead electrically conductive nail (25), lead electrically conductive nail (25) insert in the side of base (21) and switch on with horizontal conducting strip (22) or vertical conducting strip (23).

6. The intelligent memo system according to claim 5, wherein the drawing pin (10) comprises an inner core (11), an insulating core sleeve (12), an outer core (13), a drawing pin shell (14) and a L ED bead (15), the inner core (11) and the outer core (13) are made of conductive materials, the inner core (11) comprises a first large-diameter section (111) and a first small-diameter section (112), the insulating core sleeve (12) is sleeved on the first small-diameter section (112) of the inner core (11), the insulating core sleeve (12) comprises a second large-diameter section (121) and a second small-diameter section (122), the outer core (13) is sleeved on the second small-diameter section (122), the outer core (13) comprises a third large-diameter section (131) and a third small-diameter section (132), one of the L ED beads (15) is inserted into the second small-diameter section (122) of the insulating core sleeve (12) and connected with the first small-diameter section (131) of the inner core sleeve (11), the outer bead (15) is connected with a light emitting diode (23), a light emitting diode (15) of the drawing pin (13), a light emitting diode is connected with a light emitting diode (20) of the outer core (15), a second small-emitting diode (15), a light-emitting diode (23) and a light-emitting diode (15) which are formed by a second small-emitting diode (23) and a light-emitting diode (23) which are arranged between the insulating core (15) and a third small-diameter section, and a light-emitting diode plug-emitting diode (15) and a light-emitting diode (20) which are arranged on the insulating core (15) and a light-emitting diode plug-emitting diode (20) and a large-emitting diode (15) which are arranged on the outer core (23) and a.

7. The intelligent note system according to claim 6, wherein the switch base (31) is square, the axis of the lead screw (33) is parallel to the long sides of the switch base (31), fine grooves are uniformly arranged at intervals on the edge of one long side of the switch base (31), a conducting strip is inserted into each fine groove to form a negative contact (36), holes are formed in the part, extending to the outer side of each fine groove, of each conducting strip to facilitate connection of a lead, a square body (351) of the positive plate (35) is perpendicular to the switch base (31) and parallel to the axis of the lead screw (33), positive contacts (352) are uniformly arranged at intervals on the edge of the lower end of the square body (351), the lower end faces of the positive contacts (352) abut against the upper end faces of the negative contacts (36), holes are formed in the square body (351) to facilitate connection of the lead, and the distance L between two adjacent negative contacts is used₂Greater than two adjacent positive contact spacings L₁And L₁+L₃＜L₂＜k*L₁/(k-1) in the formula L₃And k is the width and number of the positive and negative contacts, respectively.

8. The intelligent note system of claim 7, wherein: the number of the transverse conductive adhesive tapes (22) is M, the number of the longitudinal conductive adhesive tapes (23) is N, and the number X of the linear multi-option switches (30) meets the following formula:whereinThe negative electrode contacts (36) of the linear multi-selection switches (30) are connected with the transverse conductive adhesive tape (22) through the conductive nails (25), the positive electrode sheet (35) is connected with the positive electrode of the power supply,the negative electrode contacts (36) of the linear multi-selection switches (30) are connected with the longitudinal conductive adhesive strips (23) through conductive nails (25), and the positive electrode plate (35) is connected with the negative electrode of the power supply; the control module (40) controls the start and stop of the motors (32) in all the linear multi-option switches (30).

9. The intelligent note system according to claim 8, wherein the control module (40) comprises a human-computer interaction unit (41) and a timing unit (42), the human-computer interaction unit (41) is used for inputting the position information and the reminding time of the drawing pin (10) input by a user, the timing unit (42) receives the reminding time and performs countdown, and the control module (40) receives a timing end signal of the timing unit (42) and drives the motor (32) of the linear multi-choice switch (30) to act according to the position information of the drawing pin (10) so that the transverse conductive adhesive tape (22) and the longitudinal conductive adhesive tape (23) corresponding to the position of the drawing pin (10) are conducted and L ED lamp beads (15) in the drawing pin (10) are lightened.

10. The intelligent note system of claim 9, wherein: the man-machine interaction unit (41) comprises a display screen (411) and a key (412), wherein the key (412) is used for receiving input information of a user, and the display screen (411) is used for displaying the input information of the user; the shell (50) comprises a front shell (51) and a back plate (52), a first gap (511) and a second gap (512) are formed in the front shell (51), the inserting plate (20) is placed at the first gap (511), the foam layer (24) is exposed in the first gap (511), and the human-computer interaction unit (41) is exposed from the second gap (512); the plug board (20), the linear multi-option switch (30), the control module (40) and the power supply are all accommodated in a cavity formed by enclosing a front shell (51) and a back plate (52).

Technical Field

The invention relates to the technical field of office supplies, in particular to a linear multi-selection switch and an intelligent note system comprising the same.

Background

The note is a small portable paper, one side of the note is sticky, most of the note is yellow, and other bright colors are also available to meet the preference of young people, so that some contents such as writing notes and telephone numbers can be written at any time. Generally used for office and telephone recording. When you forget to do something, you can write on the place where you can see, and can recall the thing. It can also be used to leave a message and inform others. The note board is a product specially used for sticking notes, is generally in a flat shape, is made of wood materials and is often provided with a frame. When the notepaper is used, the notepaper written by the user is fixed on the notepaper plate through the I-shaped nail. The note board is usually put in the office, or places desktop or subaerial through the support, or fixed mounting on the wall, and the note board on the market is mostly ordinary plate body at present, and the I-shaped nail also is ordinary nail, and the user often need initiatively go to look over the note that oneself remembered, like this when the user is busy, often can miss the affairs of record on the label, so urgently need a note system that can remind automatically.

In order to design the intelligent note system, a criss-cross line is particularly used for lighting a drawing pin, a multi-selection switch is needed to light the drawing pin at a specified position, the multi-selection switch is used for selecting one of the plurality of lines, and in the prior art, the multi-selection switch has many types, is rotary and linear, but has many defects: firstly, the number of switch gears is small, and a plurality of switches are arranged when a plurality of lines need to be selected; secondly, the existing multi-selection switches are mostly manual type, and the gears can be shifted by shifting with fingers and can not be shifted automatically; thirdly, most switches have low gear shifting speed and large abrasion, and cannot be suitable for occasions with quick response and long-term use.

Disclosure of Invention

The invention aims to provide a linear multi-selection switch which is high in response speed and long in service life, has multiple gears and can automatically shift gears.

In order to realize the purpose, the invention adopts the technical scheme that: a linear multi-selection switch comprises a switch base, a motor, a lead screw, a sliding block, a positive plate and a negative contact, wherein the motor is coaxially connected with the lead screw and is used for driving the lead screw to rotate; the slider is fixed with the positive plate, and the positive plate includes square body and anodal contact, is provided with the negative pole contact on the switch base, and anodal contact and negative pole contact's number are unanimous, and motor drive slider only communicates with each other with the negative pole contact when the motion is in the optional position along lead screw length direction.

Compared with the prior art, the invention has the following technical effects: through setting up staggered positive pole contact and negative pole contact, can guarantee that the slider lets different positive and negative contacts switch on when driving positive plate action, just so can convenient realization gear change to here drive the positive plate action through the cooperation of nut lead screw, need not manual operation, the setting of a plurality of positive and negative contacts here has avoided the quick wearing and tearing of single contact, increase of service life, can also realize the intercommunication of different positive and negative contacts in less displacement range simultaneously, and response speed is fast.

Another object of the present invention is to provide an intelligent note system including the above linear multi-selection switch, which can conveniently implement a note reminding function.

In order to realize the purpose, the invention adopts the technical scheme that: including drawing pin, picture peg, shell, sharp many choice switch and control module, the shell be used for holding picture peg, sharp many choice switch and control module, the structure of sharp many choice switch is as before, the memo inserts through the drawing pin and arranges in on the picture peg, is provided with sound production or luminous component in the drawing pin, has arranged vertically and horizontally staggered's circuit in the picture peg, control module switches on through certain vertical circuit, certain horizontal circuit and drawing pin in the sharp many choice switch control picture peg and makes the drawing pin sound production or luminous realization remind.

Compared with the prior art, the invention has the following technical effects: through set up vertically and horizontally staggered's circuit and many select switches in the picture peg, just so can realize that the independent of every drawing pin lights on the picture peg, when using, sets for a count-down to every drawing pin, and the count-down time of a certain drawing pin has arrived, can realize that this drawing pin sends the warning through the action of control module control straight line many select switches, and this device simple structure is very convenient for use.

Drawings

FIG. 1 is a schematic perspective view of a linear multiple-choice switch;

FIG. 2 is an exploded view of the intelligent note system;

FIG. 3 is a schematic perspective view of the intelligent note system, wherein the back plate is not shown;

FIG. 4 is a schematic structural view of the interposer;

FIG. 5 is a schematic diagram of an exploded structure of a pushpin;

figure 6 is a cross-sectional view of a pushpin.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 6.

Referring to fig. 1, the linear multi-selection switch comprises a switch base 31, a motor 32, a screw 33, a sliding block 34, a positive plate 35 and a negative contact 36, wherein the motor 32 is coaxially connected with the screw 33, the motor 32 is used for driving the screw 33 to rotate, the motor 32 and the screw 33 are fixedly installed on the switch base 31, the shaft of the screw 33 is parallel to the plate surface of the switch base 31, and the screw 33 and the sliding block 34 form screw nut matching; the slide block 34 is fixed with a positive pole piece 35, the positive pole piece 35 comprises a square body 351 and a positive pole contact 352, the switch base 31 is provided with a negative pole contact 36, the number of the positive pole contact 352 is consistent with that of the negative pole contact 36, and only one positive pole contact 352 is communicated with the negative pole contact 36 when the motor 32 drives the slide block 34 to move at any position along the length direction of the screw rod 33. Through setting up staggered positive contact 352 and negative contact 36, can guarantee to let different positive and negative contacts switch on when slider 34 drives positive plate 35 action, just so can convenient realization gear change, and here drive positive plate 35 action through the cooperation of nut lead screw, need not manual operation, the setting of a plurality of positive and negative contacts here, the quick wearing and tearing of single contact have been avoided, increase of service life, can also realize the intercommunication of different positive and negative contacts in less displacement range simultaneously, response speed is fast.

There are many ways to achieve that only one positive contact 352 and one negative contact 36 can communicate at any position, and a more preferred embodiment is provided below for reference₁A spacing L between two adjacent negative contacts 36₂Width of positive and negative contacts L₃And the number k of the positive and negative electrode contacts meets the following formula:

spacing L₁Is the spacing between the centerlines of two adjacent positive contacts 352, L₂Likewise, the width L of the positive and negative contacts₃That is, here the positive contact 352 and the negative contact 36 are of uniform width and are both L₃On the premise of satisfying the above formula, in fig. 1, when the first positive and negative contacts are in contact and conducted, the contact is turned on because of | L₂-L₁|＞L₃Therefore, the second, third and fourth … … positive contacts 352 are spaced further from the corresponding negative contacts 36 and do not conduct, and in order to avoid the tenth positive contact 352 from conducting too close to the ninth negative contact 36, the formula | L is used₂-L₁|·k＜L₂The number k is limited. The structure is very simple and reliable, and the realization is very reliable.

Further, to reduce the size of the overall linear multiple selection switch, L is described herein₂＞L₁(ii) a The switch base 31 is made of square plastic materials, the shaft of the screw rod 33 is parallel to the long sides of the switch base 31, fine grooves are uniformly arranged at the edge of one long side of the switch base 31 at intervals, conducting strips are interpolated in the fine grooves to form the negative electrode contact 36, holes are formed in the parts, extending to the outer sides of the fine grooves, of the conducting strips so as to be convenient for connecting wires, and the negative electrode contact 36 can be conveniently arranged through the matching of the fine grooves and the conducting strips; the square body 351 of the positive plate 35 is perpendicular to the switch base 31 and parallel to the axis of the screw rod 33, and the lower end edges of the square body 351 are allThe positive contacts 352 are evenly arranged at intervals, the lower end faces of the positive contacts 352 are abutted to the upper end faces of the negative contacts 36, and holes are formed in the square body 351 to facilitate connection of wires. When the device is used, the holes formed in the public end connecting square body 351 and each negative electrode contact 36 are connected with other components as a gear, and when the gear is required to be shifted, the driving motor 32 is only required to rotate by a certain angle, so that the control is very convenient.

Referring to fig. 2 and 3, the invention further discloses an intelligent note system manufactured by using the linear multi-selection switch 30, which comprises a drawing pin 10, an inserting plate 20, a shell 50, the linear multi-selection switch 30 and a control module 40, wherein the shell 50 is used for accommodating the inserting plate 20, the linear multi-selection switch 30 and the control module 40, the note is inserted in the inserting plate 20 through the drawing pin 10, a sounding or lighting part is arranged in the drawing pin 10, criss-cross lines are arranged in the inserting plate 20, and the control module 40 controls a certain longitudinal line, a certain transverse line and the drawing pin 10 in the inserting plate 20 to be conducted through the linear multi-selection switch 30, so that the drawing pin 10 makes a sound or emits light to realize reminding. Through set up vertically and horizontally staggered's circuit and sharp many choice switch 30 in picture peg 20, just so can realize that every drawing pin 10 on picture peg 20 lights alone, when using, sets for a countdown to every drawing pin 10, and when the countdown time of certain drawing pin 10 arrived, can realize this drawing pin 10 through the action of control module 40 control sharp many choice switch 30 and send out the warning, this device simple structure, it is very convenient to use.

Referring to fig. 4, the structure of the insert plate 20 is various, and in the present invention, preferably, the insert plate 20 includes a base 21, the base 21 is in a square box shape, the base 21 is sequentially provided with a transverse conductive adhesive tape 22, a longitudinal conductive adhesive tape 23, and a foam layer 24 from bottom to top, the foam layer 24 is generally made of a high-density sponge material, so as to facilitate the insertion of the drawing pin 10 and not leave a hole after the drawing pin 10 is pulled out. A plurality of horizontal conducting strip 22 are adjacent to be arranged, a plurality of vertical conducting strip 23 are adjacent to be arranged, horizontal conducting strip 22 is perpendicular to each other with vertical conducting strip 23, horizontal conducting strip 22 just forms vertically and horizontally staggered's circuit with vertical conducting strip 23 like this, every horizontal conducting strip 22 all is provided with insulating outer layer 221 with vertical conducting strip 23, avoid two adjacent conducting strip to switch on, insulating outer layer 221 generally just sets up the one deck in the conducting strip outside can. The peripheral walls of two adjacent sides of the base 21 are provided with conductive nails 25, and the conductive nails 25 are inserted into the side edges of the base 21 and are communicated with the transverse conductive adhesive tapes 22 or the longitudinal conductive adhesive tapes 23. The conductive pins 25 are provided for facilitating connection between the transverse conductive adhesive tape 22 and the longitudinal conductive adhesive tape 23 and other circuits, for example, in the present invention, when the conductive adhesive tape is connected to the linear multi-selection switch 30, only the conductive pins 25 and the negative contact 36 of the linear multi-selection switch 30 need to be connected by wires, and the wires are not shown in fig. 3, because too many wires are present, the display of other components is affected.

Referring to fig. 5 and 6, there are many configurations of drawing pin 10 powered from insert board 20, therefore, preferably, drawing pin 10 includes inner core 11, insulating core sheath 12, outer core 13, drawing pin housing 14, and L ED bead 15, both of inner core 11 and outer core 13 are made of conductive materials, inner core 11 includes first large diameter section 111 and first small diameter section 112, insulating core sheath 12 is disposed on first small diameter section 112 of inner core 11, insulating core sheath 12 includes second large diameter section 121 and second small diameter section 122, outer core 13 is disposed on second small diameter section 122, outer core 13 includes third large diameter section 131 and third small diameter section 132, one of legs of L ED bead 15 is disposed in second small diameter section 122 of insulating core sheath 12 and connected to first small diameter section 112 of inner core 11, another of L is connected to third large diameter section 131 of outer core 13, first large diameter section 111 is connected to third small diameter section 131 of outer core sheath 132, first large diameter section 111 is disposed on insulating core sheath 12, and connected to outer sheath 12, and soldering tin is disposed on insulating core sheath 15, when insulating core sheath 12 is mounted on insulating sheath 15, outer sheath 13, light-emitting plug 20 is mounted on insulating core sheath 15, and insulating sheath 15, then light is inserted into insulating sheath 12, insulating sheath 15, the insulating sheath 12 is mounted on insulating core sheath 15, the insulating sheath 12, the insulating core sheath 15, the insulating sheath 15 is mounted on insulating sheath, the insulating sheath 12, the insulating sheath 12 is mounted on the insulating sheath, the insulating sheath 12, the insulating sheath 15 is mounted on the insulating sheath, the insulating sheath 12, the insulating sheath.

Further, two adjacent negative contact spacings L₂Greater than two adjacent positive contact spacings L₁And L₁+L₃＜L₂＜k*L₁/(k-1) in the formula L₃And k are the widths and the numbers of the positive and negative contacts, respectively, and the linear multi-selection switch 30 adopting the structure has smaller volume and compact structure as mentioned above.

When the adhesive tapes and the inserting plates 20 with different sizes are selected, the number of the corresponding conductive adhesive tapes is different, and the number of the negative contacts 36 of the linear multi-selection switch 30 is also different, so that the specific design is carried out according to the following standard. Specifically, the number of the transverse conductive adhesive strips 22 is M, the number of the longitudinal conductive adhesive strips 23 is N, and the number X of the linear multi-selection switches 30 satisfies the following formula:whereinMeaning that the rounding up operation on the number a is taken,the negative contact 36 of the linear multi-selection switch 30 is connected with the transverse conductive adhesive tape 22 through the conductive nail 25, the positive plate 35 is connected with the positive pole of the power supply,the negative electrode contact 36 of the linear multi-selection switch 30 is connected with the longitudinal conductive adhesive tape 23 through the conductive nail 25, and the positive electrode sheet 35 is connected with the negative electrode of the power supply; control moduleThe block 40 controls the start and stop of the motor 32 in all the linear multi-selection switches 30.

Suppose there are 50 horizontal conductive adhesive tapes 22, each linear multiple-choice switch 30 has 20 negative contacts 36, thus three linear multiple-choice switches 30 are needed, the positive plates 35 of the three linear multiple-choice switches 30 are all connected to the positive electrode of the power supply, the negative contact 36 of the first linear multiple-choice switch 30 is respectively connected to the 1 st, 2 nd, …, and 20 th horizontal conductive adhesive tapes 22, the negative contact 36 of the second linear multiple-choice switch 30 is respectively connected to the 21 st, 22 nd, …, and 40 th horizontal conductive adhesive tapes 22, the negative contact 36 of the third linear multiple-choice switch 30 is respectively connected to the 41 th, 42 th, …, and 50 th horizontal conductive adhesive tapes 22, and the connection of the vertical conductive adhesive tapes 23 is performed similarly.

Further, the control module 40 includes a human-computer interaction unit 41 and a timing unit 42, the human-computer interaction unit 41 is configured to enter position information and a reminding time of the drawing pin 10 input by a user, the timing unit 42 receives the reminding time and performs countdown, the control module 40 receives a timing end signal of the timing unit 42 and drives the motor 32 of the linear multi-choice switch 30 to operate according to the position information of the drawing pin 10, so that the transverse conductive adhesive tape 22 and the longitudinal conductive adhesive tape 23 corresponding to the position of the drawing pin 10 are conducted and L ED bead 15 in the drawing pin 10 is lightened, the human-computer interaction unit 41 includes a display screen 411 and a key 412, the key 412 is configured to receive user input information, the display screen 411 is configured to display user input information, the human-computer interaction unit 41 is configured to facilitate a user to set the reminding time, and also facilitate direct entry of the position information of the inserted drawing pin 10, and the user knows the insertion position of the drawing pin 10, and can print small squares on the surface of the foam layer 24, each small square is marked with transverse conductive adhesive tape 22 and longitudinal conductive adhesive tape 23, and after the setting, the user can be prompted to insert a corresponding to a corresponding vertical conductive adhesive tape 22 and a desired drawing pin 10 at the 5 hours, and the user can be prompted by the user.

Further, the housing 50 includes a front housing 51 and a back housing 52, the front housing 51 has a first notch 511 and a second notch 512, the insertion board 20 is disposed in the first notch 511, the foam layer 24 is exposed in the first notch 511, and the human-computer interaction unit 41 is exposed in the second notch 512, so that the whole device is more beautiful and easy to operate. The plug board 20, the linear multi-selection switch 30, the control module 40 and the power supply are all accommodated in a cavity enclosed by the front shell 51 and the back plate 52, so that the service life of the system is prolonged.