CN207020775U - Anti-dismantling electronic equipment and POS - Google Patents

Abstract

The Anti-dismantling electronic equipment of the application and the shell of POS are made up of face-piece and drain pan; by being fixedly connected with tamper portion between face-piece and drain pan; when tolling breakdown POS; face-piece and drain pan separation; tamper portion is damaged; mainboard controls safety chip to delete the safe key being stored in safety chip; prevent illegal person from forcing to tear machine open; safety chip taking-up reading is cracked so as to steal bank card information; the fund security of user is threatened, is a kind of Anti-dismantling electronic equipment and POS having with information safety protection function.

Description

Anti-dismantling electronic equipment and POS

Technical field

The application is related to funds transaction field of terminal equipment, in particular to Anti-dismantling electronic equipment and POS.

Background technology

Cashless payment compared to paying in cash, have safely, quickly, advantage, the POS machines such as reliable pay eventually as a kind of End, be widely deployed in cashless payment, it be arranged on bank card franchised business and accept in site with computer Network is unified into, can be achieved with electronic funds automatic account transfer.

POS is that holder's magnetic strip information on bank card is read by card reader, and trade gold is inputted by POS operating personnel Volume, holder input personally identifiable information's (i.e. password), POS these information by unionpay center, Shang Song issuing banks system, On-line transaction is completed, provides the information of success or not, and print corresponding bill.POS application realizes credit card, debit card Deng the online consumption of bank card, ensure that transaction safely, quickly and accurately, avoid manual query blacklist and pressure be single etc. numerous Miscellaneous work, improves operating efficiency.

POS internal cause has substantial amounts of Transaction Information, and the Information Security of existing POS needs further to be improved.

Utility model content

In view of this, the purpose of the application is to overcome deficiency of the prior art, there is provided one kind has pacifies with information The Anti-dismantling electronic equipment and POS of all risk insurance protective function.

To solve the above problems, the first solution that the application provides is as follows：

Anti-dismantling electronic equipment, including face-piece and drain pan, the face-piece and drain pan connect and compose the Anti-dismantling electronics and set Standby shell, in addition to the safety chip being built in the face-piece and the drain pan, the Anti-dismantling electronic equipment also include Tamper portion, the tamper portion are fixedly connected with the face-piece and the drain pan simultaneously；

The tamper portion and the safety chip are electrically connected with, and during the tamper portion open circuit, the safety chip is deleted and deposited It is stored in safe key therein.

In the exemplary embodiment, the tamper portion is tamper silica gel, the tamper silica gel and the face-piece and the bottom Shell passes through bonding connection.

Conducting element is additionally provided with inside tamper silica gel, when tamper silica gel disconnects, conducting element short circuit, so as to send out mainboard Go out feedback signal, mainboard control safety chip deletes safe key therein.

In the exemplary embodiment, the edge of the face-piece and the drain pan is respectively equipped with tamper groove, the tamper silica gel It is embedded in the tamper groove.

It is seamless spliced between the face-piece and drain pan of tamper silica gel so as to ensure to be embedded with.

In strength type embodiment, four corners of the junction of the face-piece and the drain pan are respectively provided with column The tamper silica gel.

Electronic equipment is generally in similar rectangular-shape, and its interface is usually 4 deformations, by respectively setting one in four edges The tamper silica gel of individual column, ensure that the tamper silica gel of at least one edge when by face-piece and drain pan fractionation, will necessarily be caused Damage.

In the exemplary embodiment, the junction of the face-piece and the drain pan is provided with the tamper silicon of a ring shape Glue.

The tamper silica gel that the junction of face-piece and drain pan is respectively provided with is formed into comprehensive protection, is opened in any position When, immediately to forming protection safely.

To solve the above problems, the second solution that the application provides is as follows：

Anti-dismantling POS, above-mentioned Anti-dismantling electronic equipment are the Anti-dismantling POS.

In the exemplary embodiment, the face-piece and the drain pan are connected by screw.

It is connected by screw between face-piece and drain pan more firmly and reliable.

In the exemplary embodiment, the face-piece and the drain pan pass through injection moulding integrated molding.

The face-piece of integrated injection molding structure and the structure of drain pan are more complete, and the stress concentration and stress at connectionless place are sharp Point, there is excellent structural mechanical property.

In the exemplary embodiment, the face-piece is provided with button and display screen.

Input equipment of the button as POS, output equipment of the display screen as POS so that the function of POS is more It is perfect.

In the exemplary embodiment, the drain pan is provided with silica gel foot pad.

By adding silica gel foot pad, due to the soft characteristic of silica gel foot pad matter so that POS is positioned over supporting plane, such as table Larger frictional force is formed when on face between desktop, easily deformable silica gel foot pad make it that POS placement is more smooth.

The Anti-dismantling electronic equipment and POS of the application compared with prior art, has the following advantages that：

The Anti-dismantling electronic equipment of the application and the shell of POS are made up of face-piece and drain pan, by face-piece and drain pan Between be fixedly connected with tamper portion, when tolling breakdown POS, face-piece and drain pan separation, tamper portion is damaged, and mainboard controls safe core Piece deletes the safe key being stored in safety chip, prevents illegal person from forcing to tear machine open, and safety chip taking-up reading is cracked So as to steal bank card information, the fund security of user is threatened, is a kind of Anti-dismantling having with information safety protection function Electronic equipment and POS.

For enable the above-mentioned purpose of the application, feature and advantage become apparent from understandable, preferred embodiment cited below particularly, and match somebody with somebody Accompanying drawing appended by conjunction, is described below in detail.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the embodiment of the present application, below by embodiment it is required use it is attached Figure is briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the application, therefore be not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.

Fig. 1 shows the overall structure front view for the Anti-dismantling POS that the embodiment of the present application is provided；

Fig. 2 shows the overall structure rearview for the Anti-dismantling POS that the embodiment of the present application is provided；

Fig. 3 shows the decomposition texture schematic diagram for the Anti-dismantling POS that the embodiment of the present application is provided；

Fig. 4 shows the tamper principle modules figure for the Anti-dismantling POS that the embodiment of the present application is provided；

Fig. 5 shows the rearview of the drain pan for the Anti-dismantling POS that the embodiment of the present application is provided.

Icon：1- Anti-dismantling POSs；11- face-pieces；12- drain pans；121- silica gel foots pad；13- keyboards；14- light guide plates； 15- luminescence units；16- mainboards；17- display screens；18- antennas；19- panels；20- paper storehouses；21- Cang Gai；211- buckles；22- magnetic Head；221- head suspensions；23- safety chips；24- tampers portion；25- writing pencils；The 251- tips of the brushstyle of a writing or painting；252- positive stop ends；26- batteries Storehouse；261- containing cavities；2611- anti-slip parts；27- battery cabin caps；271- reception holes；28- lanyards.

Embodiment

Hereinafter, the various embodiments of the application will be described more fully with reference to accompanying drawing.The application can have various realities Example is applied, and can adjust and change wherein.Therefore, will be retouched in more detail with reference to the specific embodiment being shown in the drawings State the application.It should be understood, however, that：In the absence of the meaning that the various embodiments of the application are limited to the specific embodiment applied herein Figure, but the application should be interpreted as covering all adjustment in the spirit and scope for the various embodiments for falling into the application, etc. Jljl and/or alternative.Description taken together with the accompanying drawings, the same element of same reference numerals.

Hereinafter, the term " comprising " that can be used in the various embodiments of the application or " may include " instruction are applied Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as exist Used in the various embodiments of the application, term " comprising ", " having " and its cognate are meant only to represent special characteristic, number Word, step, operation, the combination of element, component or foregoing item, and be understood not to exclude first one or more other Feature, numeral, step, operation, element, component or foregoing item combination presence or one or more features of increase, numeral, Step, operation, element, component or foregoing item combination possibility.

In the various embodiments of the application, stating "or" or " at least one in A or/and B " includes what is listed file names with Any combinations of word or all combinations.For example, " A or B " or " at least one in A or/and B " may include A, Ke Bao for statement Include B or may include A and B both.

The statement (" first ", " second " etc.) used in the various embodiments of the application can be modified in various implementations Various element in example, but respective sets can not be limited into element.For example, presented above be not intended to limit the suitable of the element Sequence and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user fills Put and indicate different user device with second user device, although the two is all user's set.For example, each of the application is not being departed from In the case of the scope of kind embodiment, the first element is referred to alternatively as the second element, and similarly, the second element is also referred to as first Element.

It should be noted that：, can be by the first composition member if an element ' attach ' to another element by description Part is directly connected to the second element, and " connection " the 3rd can be formed between the first element and the second element Element.On the contrary, when an element " being directly connected to " is arrived into another element, it will be appreciated that be in the first element And second be not present the 3rd element between element.

The term used in the various embodiments of the application is only used for describing the purpose of specific embodiment and not anticipated In the various embodiments of limitation the application.As used herein, singulative is intended to also include plural form, unless context is clear Chu it is indicated otherwise.Unless otherwise defined, all terms (including the technical term and scientific terminology) tool being otherwise used herein There is the implication identical implication that the various embodiment one skilled in the art with the application are generally understood that.The term (term such as limited in the dictionary typically used) is to be interpreted as having and the situational meaning in correlative technology field Identical implication and the implication with Utopian implication or overly formal will be not construed as, unless in the various of the application It is clearly defined in embodiment.

Below in conjunction with the accompanying drawings, the embodiment of the application is elaborated.

Embodiment

Also referring to Fig. 1 to Fig. 3, the present embodiment provides Anti-dismantling POS 1, and it includes the He of face-piece 11 being connected with each other Drain pan 12, the Anti-dismantling POS 1 also include the keyboard in the face-piece 11 and the accommodating cavity of the composition of the drain pan 12 13rd, light guide plate 14, luminescence unit 15 and mainboard 16.By exposing in the face-piece 11, the light guide plate 14 is located at the keyboard 13 Between the luminescence unit 15 and the keyboard 13, the mainboard 16 controls the luminescence unit 15 luminous, the keyboard 13 Printing opacity.

Above-mentioned, this Anti-dismantling POS 1 sets luminescence unit by using light-permeable keyboard 13 under light-permeable keyboard 13 15 and light guide plate 14 so that keyboard 13 turns into a kind of backlight keyboard 13, has more gorgeous outward appearance, while in dim situation It is lower in use, so that the visualization of the button of keyboard 13 is higher, help accurately to operate Anti-dismantling POS 1.Hair Light unit 15 is specially LED, and light guide plate 14 may also be referred to as equal tabula rasa, be sent luminescence unit 15 by light guide plate 14 Light is uniformly appeared by keyboard 13, so as to avoid the printing opacity of keyboard 13 uneven, causes light to concentrate the defects of dazzling.

As its name suggests, drain pan 12 and face-piece 11 are housing, and drain pan 12 constitutes anti-after being connected with face-piece 11 by clamping The body of POS 1 is dismantled, and due to the shell structure of drain pan 12 and face-piece 11, is internally formed after face-piece 11 and drain pan 12 connect Accommodating cavity, accommodating cavity are used to accommodate the interior of mainboard 16, light guide plate 14, luminescence unit 15 and other Anti-dismantling POSs 1 If part.

Face-piece 11 and drain pan 12 use integrated injection molding, the face-piece 11 of integrated injection molding structure and drain pan 12 Structure is more complete, the sharp point of stress concentration and stress at connectionless place, has excellent structural mechanical property.

Face-piece 11 was connected by clamping before this with drain pan 12, was then connected by screw fixation, and the mode of mode connects for screw makes Attachment structure between face-piece 11 and drain pan 12 is simple, connection is firm and stably.

The Anti-dismantling POS 1 also includes the display screen 17 and antenna 18 being electrically connected with respectively with the mainboard 16, institute State display screen 17 to be embedded in the face-piece 11, the antenna 18 is set around the display screen 17.

It can realize that the wireless data of Anti-dismantling POS 1 interacts by adding antenna 18 in Anti-dismantling POS 1, with Specific objective is identified by radio signals and reads and writes related data, without establishing machinery between identifying system and specific objective Or optical contact, it is a kind of contactless identification.

The bottom of face-piece 11 is provided with keyboard groove, and keyboard 13 in keyboard groove by exposing, the top of face-piece 11, i.e., keyboard 13 is upper Side is provided with display screen groove, and display screen 17 exposes to show therefrom.Display screen 17 is specially LCD display 17, and antenna 18 is in side Frame-shaped, be sheathed on outside LCD display 17, antenna 18 and LCD display 17 by the installation of the support of display screen 17 with face-piece 11, And it is cladded with panel 19 in LCD display screens 17.External screen of the panel 19 as display screen 17, protection is played to LCD display 17 Effect.

The Anti-dismantling POS 1 also includes printer (not shown), paper storehouses 20 and storehouse lid 21, the printer and In the accommodating cavity that the paper storehouses 20 are formed located at the face-piece 11 and the drain pan 12.The storehouse lid 21 is rotationally connected with On the face-piece 11, and the storehouse lid 21 can be covered in the paper storehouses 20.

Specifically, printer be located at Anti-dismantling POS 1 top, Anti-dismantling POS 1 complete merchandise when, mainboard 16 according to The instruction sent according to the grade input equipment of keyboard 13, control printer print transaction slip.Paper storehouses 20 are bucket-shaped in cylinder, pass through Printer is fixed on the bottom of paper storehouses 20, so that printer is in the accommodating cavity that face-piece 11 and drain pan 12 are formed.Paper storehouses It is used for the printing paper for preventing web-like in 20, closes paper storehouses 20 by storehouse lid 21.Button is also fixedly connected with specific storehouse lid 21 Plate 211, buckle 211 are overlying on the surface of face-piece 11, and the storehouse lid 21 that can be made by pulling buckle 211 is overturn with respect to face-piece 11, so as to Paper storehouses 20 are opened, are easy to add printing paper roll into paper storehouses 20.

The outside of the one side relative with the keyboard 13 is provided with silica gel foot pad 121 on the drain pan 12.

By adding silica gel foot pad 121, due to the soft characteristic of the matter of silica gel foot pad 121 so that Anti-dismantling POS 1 is positioned over Supporting plane, forms larger frictional force during as on desktop between desktop, and easily deformable silica gel foot pad 121 causes POS's Place more smooth.

The side of the face-piece 11 of this Anti-dismantling POS 1 is provided with the head suspension 221 of the channel-shaped of bar shaped, and located at magnetic Magnetic head 22 on head bracket 221, magnetic head 22 are electrically connected with mainboard 16, and magnetic card inserting on head suspension 221 is drawn, and mainboard 16 is logical Cross the data that magnetic head 22 reads magnetic card.

Also referring to Fig. 4, the Anti-dismantling POS 1 also includes the safety chip 23 being electrically connected with mainboard 16 and prevented Tear portion 24 open.The tamper portion 24 is fixedly connected with the face-piece 11 and the drain pan 12 simultaneously, when the tamper portion 24 is breaking, The mainboard 16 controls the safety chip 23 to delete and is stored in safe key therein.

By adding tamper portion 24, when tolling breakdown Anti-dismantling POS 1, face-piece 11 and drain pan 12 are separated, and tamper portion 24 is damaged Bad, mainboard 16 controls safety chip 23 to delete the safe key being stored in safety chip 23, prevents illegal person from forcing to tear machine open, Safety chip 23 is taken out into reading cracked and so as to steal bank card information, threaten the fund security of user.

Specifically, the tamper portion 24 is tamper silica gel, the tamper silica gel and the face-piece 11 and the drain pan 12 are logical Cross bonding connection.The edge of the face-piece 11 and the drain pan 12 is respectively equipped with tamper groove, and the tamper silica gel is embedded at described It is seamless spliced between the face-piece 11 of tamper silica gel and drain pan 12 so as to ensure to be embedded with tamper groove.

Conducting element is provided with inside tamper silica gel, when tamper silica gel disconnects, conducting element open circuit, so as to send out mainboard 16 Go out feedback signal, mainboard 16 controls safety chip 23 to delete the safe key in safety chip 23.

In the present embodiment, four corners of the junction of the face-piece 11 and the drain pan 12 are respectively provided with the institute of a column State tamper silica gel.

Anti-dismantling POS 1 is generally in similar rectangular-shape, and its section is usually quadrangle, by four edges The tamper silica gel of a column is respectively set, ensures, when face-piece 11 and drain pan 12 are split, at least one edge will necessarily be caused Tamper silica gel damage, so as to being protected to the information in safety chip 23.

In another embodiment, the junction of the face-piece 11 and the drain pan 12 is provided with the tamper silicon of a ring shape Glue.

Because tamper silica gel will be electrically connected with mainboard 16, thus a tamper silica gel surrounds annular, then both ends Throw away and be electrically connected with mainboard 16, form comprehensive protection, be opened in face-piece 11 and 12 any link position of drain pan When, safeguard protection is formed immediately.

It is appreciated that the anti-dismounting protection structure of this Anti-dismantling POS 1 can be also used in other electronic equipments, it is used for Protect the data information security in other electronic equipments.

Please refer to fig. 5, the Anti-dismantling POS 1 also includes writing pencil 25.Battery compartment is provided with the drain pan 12 26, the surface of drain pan 12 is provided with the battery cabin cap 27 for closing the battery compartment 26.The hand is provided with the battery compartment 26 The containing cavities 261 of pen 25 are write, the side of the battery cabin cap 27 is provided with the reception hole 271 connected with the containing cavities 261, institute State writing pencil 25 and penetrated by the reception hole 271 and is inserted in the containing cavities 261.

The display screen 17 of Anti-dismantling POS 1 is a kind of touch screen, and control instruction is inputted to mainboard 16 by writing pencil 25, When without using writing pencil 25, by writing pencil 25 store with the containing cavities of battery compartment 26 261, in containing cavities 261 are inserted into When need guiding through the reception hole 271 of battery cabin cap 27, so as to which battery cabin cap 27 be fixed, needed when assembling and disassembling battery cabin cap 27 by Writing pencil 25, which takes out, could assemble and disassemble battery cabin cap 27.The one side of writing pencil 25 is contained, and on the other hand serves self-contained battery storehouse The effect of lid 27.

Battery is provided with battery compartment 26, battery is used to power to mainboard 16, the control display screen 17 of mainboard 16, keyboard 13, peace The full grade of chip 23 electrical equipment work.

The face-piece 11 or the drain pan 12 are provided with lanyard fixing hole, and the one end of a lanyard 28 is fixedly connected on the lanyard In fixing hole, the other end is fixedly connected with the end of the writing pencil 25.

Writing pencil 25 is fixed on face-piece 11 or drain pan 12 by lanyard 28, by writing pencil 25 from containing cavities 261 Take out in use, do not make still writing pencil 25 depart from Anti-dismantling POS 1, effectively prevent writing pencil 25 from being lost because putting everywhere.

In the present embodiment, face-piece 11 is provided with lanyard fixing hole.Lanyard 28 is specially spring rope.Spring rope is that one kind can be received The rope body of contracting, spring rope length in normality are not grown, can stretched when in use with use demand, are not influenceed again using comfortable Storage.

The writing pencil 25 includes the tip of the brushstyle of a writing or painting 251 and positive stop end 252, the tip of the brushstyle of a writing or painting 251 be inserted in the containing cavities 261 with The section of the containing cavities 261 matches, the positive stop end 252 be embedded in the reception hole 271 and with the reception hole 271 Section match, the cross-sectional area of the positive stop end 252 is more than the cross-sectional area of the tip of the brushstyle of a writing or painting 251.

By setting the tip of the brushstyle of a writing or painting 251 and positive stop end 252 significantly to be distinguished to the both ends of writing pencil 25, it is being inserted in When in containing cavities 261, it is not easy to it is anti-inserted, while positive stop end 252 also provides the position of force for the extraction of writing pencil 25, is easy to hand Pen 25 is write to extract out from containing cavities 261.

The depth of the thickness of the positive stop end 252 and the reception hole 271 matches.Ensure that positive stop end 252 is being embedded at , can be equal with the surface of battery cabin cap 27 when in reception hole 271.The outward appearance of Anti-dismantling POS 1 is not influenceed.

Specifically, the tip of the brushstyle of a writing or painting 251 is cylindrical, positive stop end 252 is in the rectangle of non-revolved body shape.

The writing pencil 25 is collapsible writing pencil 25, i.e., the tip of the brushstyle of a writing or painting 251 of described writing pencil 25 is scalable.The containing cavities Anti-slip part 2611 is provided with 261, the frictional force between the anti-slip part 2611 and the tip of the brushstyle of a writing or painting 251 of the writing pencil 25 is more than institute State the flexible resistance of the tip of the brushstyle of a writing or painting 251 of writing pencil 25.

To cause writing pencil 25 has more comfortably to use feel, writing pencil 25 should have longer length, while again Writing pencil 25 can be caused to adapt to the length of battery compartment 26, so writing pencil 25 is arranged into collapsible writing pencil 25.In containing cavities Anti-slip part 2611 is set in 261, when writing pencil 25 is extracted from containing cavities 261, between anti-slip part 2611 and writing pencil 25 Friction so that writing pencil 25 automatically achieves the state of elongation, without drawing again after taking-up.

One end of the tip of the brushstyle of a writing or painting 251 is the positive stop end 252, and the other end is provided with damper portion, and the damper portion is prevented with described Cunning portion 2611 abuts.

The cross-sectional area of the tip of the brushstyle of a writing or painting 251 is less than the cross-sectional area of containing cavities 261, is increased by adding damper portion in the tip of the brushstyle of a writing or painting 251 The tip of the brushstyle of a writing or painting 251 and the frictional force of anti-slip part 2611, when being extracted out so as to protect writing pencil 25 in containing cavities 261, the tip of the brushstyle of a writing or painting 251 reaches elongation State.Specifically, the tip of the brushstyle of a writing or painting 251 is cylindrical end, containing cavities 261 are in circular hole, and damper portion is located at the straight of the end of the tip of the brushstyle of a writing or painting 251 Footpath is slightly larger than the rubber sleeve of the internal diameter of the containing cavities 261 with anti-slip part 2611.Friction between rubber sleeve and anti-slip part 2611 Power is larger so that the tip of the brushstyle of a writing or painting 251 can reach the state of stretching when pulling out.

Specifically, the anti-slip part 2611 is some perpendicular to the writing pencil 25 distribution in the containing cavities 261 Rib.Frictional force between writing pencil 25 and containing cavities 261 is increased by rib, it is simple in construction and effective.

The battery cabin cap 27 is provided with anti-skid structure, and anti-skid structure is again provided with drain pan 12.On battery cabin cap 27 Anti-skid structure is set, increases frictional force when assembling and disassembling battery cabin cap 27, it is easier to assemble and disassemble.The anti-skid structure is specially battery cabin cap 27 and drain pan 12 on uniform several grooves.

In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, without It is that therefore, other examples of exemplary embodiment can have different values as limitation.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

Embodiment described above only expresses the several embodiments of the application, and its description is more specific and detailed, but simultaneously Therefore the limitation to the application scope can not be interpreted as.It should be pointed out that for the person of ordinary skill of the art, On the premise of the application design is not departed from, various modifications and improvements can be made, these belong to the protection model of the application Enclose.

Claims (10)

1. Anti-dismantling electronic equipment, including face-piece and drain pan, the face-piece and drain pan connect and compose the Anti-dismantling electronic equipment Shell, in addition to the safety chip being built in the face-piece and the drain pan, it is characterised in that

The Anti-dismantling electronic equipment also includes tamper portion, and the tamper portion is fixed with the face-piece and the drain pan simultaneously to be connected Connect；

The tamper portion and the safety chip are electrically connected with, and during the tamper portion open circuit, the safety chip is deleted and is stored in Safe key therein.

2. Anti-dismantling electronic equipment according to claim 1, it is characterised in that the tamper portion is tamper silica gel, described Tamper silica gel passes through bonding connection with the face-piece and the drain pan.

3. Anti-dismantling electronic equipment according to claim 2, it is characterised in that the edge of the face-piece and the drain pan point Not She You tamper groove, the tamper silica gel is embedded in the tamper groove.

4. Anti-dismantling electronic equipment according to claim 3, it is characterised in that the junction of the face-piece and the drain pan Four corners be respectively provided with the tamper silica gel of a column.

5. Anti-dismantling electronic equipment according to claim 3, it is characterised in that the junction of the face-piece and the drain pan The tamper silica gel provided with a ring shape.

6. Anti-dismantling POS, it is characterised in that Anti-dismantling electronic equipment any one of claim 1-5 is the tamper Unload POS.

7. Anti-dismantling POS according to claim 6, it is characterised in that the face-piece and the drain pan are connected by screw Connect.

8. Anti-dismantling POS according to claim 7, it is characterised in that the face-piece and the drain pan pass through injection It is integrally formed.

9. Anti-dismantling POS according to claim 6, it is characterised in that the face-piece is provided with button and display screen.

10. Anti-dismantling POS according to claim 6, it is characterised in that the drain pan is provided with silica gel foot pad.