CN202085423U

CN202085423U - Terminal

Info

Publication number: CN202085423U
Application number: CN2011202184124U
Authority: CN
Inventors: 郝华奇
Original assignee: Huawei Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2011-12-21
Anticipated expiration: 2021-06-24

Abstract

The utility model provides a terminal, which comprises a shell. An inner cavity of the terminal is formed by the shell in a surrounding manner, a through hole is arranged on a first side wall of the shell, a gear and a rack meshing with each other are arranged in the inner cavity, a center hole of the gear is arranged at the center of the gear, a gear shaft is penetratingly arranged in the through hole on the first side wall of the shell, one end of the gear shaft penetrates into the center hole of the gear to drive the gear to rotate, the other end of the gear shaft penetrates out of the shell and is connected with a rotary part arranged outside the shell so as to drive the gear shaft to rotate through the rotary part, and an end portion of the rack is connected with a switch part of the terminal. Due to the fact that the gear and the rack meshing with each other are arranged in the inner cavity of the terminal and the switch part is driven to extend out of the shell or retract back to the shell by means of mesh movement of the gear and the rack, a user can rotate a lever with a hand, and the terminal is simple in operation.

Description

A kind of terminal

Technical field

The utility model relates to the communication technology, particularly a kind of terminal.

Background technology

Universal serial bus modulator-demodulator (Universal Serial BUS Modem, be called for short: USB MODEM) be a kind of wireless Internet card, also can be a kind of mobile broadband access terminal equipment etc., computer can be realized the wireless access of network by this USB MODEM.The USB head that USB MODEM comprises housing and is used to insert the network equipments such as computer; Generally speaking, in order to protect the USB head not lost, usually it is contracted in housing when not using, just need in use the USB head is stretched out, promptly the USB head is equivalent to a switch block that need carry out stretching motion.

At present, the mechanism that control USB head carries out stretching motion can be pushing hands, in the housing of USB MODEM, be provided with and USB pushing hands of fixedlying connected, this pushing hands can be the support that the USB head is fixing, and support moves in draw-in groove, also is provided with the elastic force apparatus that can this pushing hands of control move.In use, can push elastic force apparatus with hand, make support be in the state that can move automatically, support begins to seesaw in draw-in groove, and then makes the USB head stretch out outside the housing; Behind certain position, unclamp elastic force apparatus, guarantee that support can stop at the fixed position.

The technological deficiency that above-mentioned prior art exists is: all need when using USB MODEM to push elastic force apparatus with hand at every turn, and firmly promote pushing hands forward, relatively effort; And along with the increase of number of times, support meeting under the extruding of elastic force apparatus produces lateral deformation, causes the position relation of support and draw-in groove to produce loosening and interference, can't move smoothly; Simultaneously, because elastic force apparatus along with support moves together, is understood shakiness in loading process, and then the problem that causes the elastic force apparatus slippage to be lost efficacy.Be not only above-mentioned USB MODEM, the terminal of for example stretching by pushing handle mechanisms control switch parts of other similar structures has above-mentioned defective equally.

The utility model content

The purpose of this utility model provides a kind of terminal, improves the ease for use of the extension and contraction control of the switch block in the terminal.

The utility model provides a kind of terminal, comprising: housing, and described housing is enclosed to form the inner chamber of described terminal, and the first side wall of described housing is provided with a through hole; Be provided with the gear and the tooth bar that are meshed in the described inner chamber, the center of described gear is provided with gear center hole; One gear shaft is arranged in the described through hole on the first side wall of described housing, and an end of described gear shaft penetrates described gear center hole to drive described gear rotation, the other end of described gear shaft passes outside the described housing, and a rotating parts outer with being arranged on described housing be connected, rotates to drive described gear shaft by described rotating parts; The end of described tooth bar connects the switch block of described terminal.

Aforesaid terminal, described gear comprises first surface and second surface, and described second surface is relative with the first side wall of described housing, and described first surface is parallel with second surface, and is away from described the first side wall relatively; Also be provided with the gear locating part on the described housing; Described gear locating part is arranged on the first surface side of described gear.

Aforesaid terminal also comprises: spring button, and described spring button comprises push rod and spring; Described gear shaft is the cylinder of hollow, has a through hole along its length; Described push rod is arranged in the described through hole, and first end of described push rod stretches out outside the described housing, and second end connects an end of described spring, and the other end of described spring is connected with spring stator on being fixed on described housing; The below of second end of described push rod is provided with bayonet lock, and the surface that is positioned at described spring side of described gear is provided with the draw-in groove that is used to hold described bayonet lock; Described draw-in groove that the position is set is corresponding with the rotation fixed position of described lever.

Aforesaid terminal also comprises: the tooth bar holding tank that is used to hold described tooth bar; Described tooth bar holding tank is fixed on the described housing, and is positioned at the below of described tooth bar bottom.

Aforesaid terminal, described rotating parts are knob.

Aforesaid terminal, described rotating parts are lever.

Aforesaid terminal is built-in with antenna in the described lever.

Aforesaid terminal, described draw-in groove comprise first draw-in groove and second draw-in groove; Described first draw-in groove is horizontal corresponding to described lever, and the angle between described second draw-in groove and first draw-in groove is spent less than 180 greater than 0 degree.

Aforesaid terminal, described terminal are universal serial bus modulator-demodulator, and described switch block is the USB inserted terminal.

Aforesaid terminal, described terminal are wireless home gateway.

Terminal of the present utility model, by gear and the tooth bar that is meshed is set in the inner chamber of terminal, utilize the gear motion drive switch block of gear and tooth bar to stretch out or the housing of withdrawing, solved the flexible inconvenient problem of control operation effort of switch block, make and can be rotated with hand operated lever, simple to operate and more laborsaving.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the transverse sectional view one of the utility model terminal embodiment one;

Fig. 2 is the longitudinal sectional view of the utility model terminal embodiment one;

Fig. 3 is the transverse sectional view two of the utility model terminal embodiment one;

Fig. 4 is the topology example of the utility model terminal embodiment one;

Fig. 5 is provided with structural representation for the draw-in groove among the utility model terminal embodiment one;

Fig. 6 is the transverse sectional view one of the utility model terminal embodiment two;

Fig. 7 is the transverse sectional view two of the utility model terminal embodiment two.

Description of reference numerals:

The 11-housing; The 12-inner chamber; The 13-gear;

The 14-tooth bar; The 15-lever; The 16-switch block;

17-gear locating part; The 18-push rod; The 19-spring;

20-first end; 21-second end; The 22-spring-housing groove;

23-spring stator; The 24-bayonet lock; The 25-first surface;

The 26-draw-in groove; 27-tooth bar holding tank; The 28-second surface.

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.

Below by the drawings and specific embodiments, the technical solution of the utility model done describing in further detail.Wherein, embodiment of the present utility model is to be that example describes with USB MODEM, but is not limited thereto, and can also be applied to other similar products, for example, the mechanism of memory device (flash disk of portable hard drive or USB (universal serial bus)), control product operating switch etc.

Embodiment one

Fig. 1 is the transverse sectional view one of the utility model terminal embodiment one, and Fig. 2 is the longitudinal sectional view of the utility model terminal embodiment one.Present embodiment is that the structure with USB MODEM is an example, and the technical solution of the utility model is described.

Referring to illustrated in figures 1 and 2, this terminal comprises housing 11, and this housing 11 is enclosed to form the inner chamber 12 of terminal; In inner chamber 12, be provided with the gear 13 and the tooth bar 14 that are meshed.The first side wall of housing 11 is provided with a through hole, and a gear shaft is arranged in this through hole, and an end of this gear shaft is arranged in inner chamber, and penetrates in the gear center hole of gear 13 centers setting, rotating by driven gear 13; The other end of this gear shaft passes outside the housing 11, and a rotating parts outer with being arranged on housing be connected, to rotate by this rotating parts driven gear axle.

Wherein, the rotating parts of present embodiment is example with the lever, and promptly the lever shown in Fig. 1 15 can make lever 15 rotate, and then rotate by fixedly connected gear shaft driven gear 13 with this lever 15 of manual manipulation.The effect that it will be understood by those skilled in the art that rotating parts is the rotation of driven gear axle, and then the driven gear rotation, drives the tooth bar motion by the rack-and-pinion gear motion, and therefore, rotating parts is not limited to lever, for example also can be knob etc.

Wherein, lever 15 related in the present embodiment refers to fixedlying connected of gear shaft, the fixing of lever with being connected of gear shaft, with reach lever rotate can the rotation of driven gear axle purpose.In concrete the enforcement, for example, lever and gear shaft can integrated injection moldings, and perhaps welding is fixing, perhaps is adhesively fixed etc.

Wherein, referring to shown in Figure 2, gear 13 and tooth bar 14 can be pressed close to housing 11 and be provided with, and make the gear shaft of gear 13 can stretch out housing 11, thereby lever 15 can be fixedlyed connected outside housing 11 with gear shaft; Be that gear 13 and tooth bar 14 are arranged in the inner chamber 12, lever 15 is arranged on outside the housing 11 and is coupling with gear 13, and is convenient with hand operated lever 15.

Rotation by gear 13 can drive the tooth bar 14 that is meshed and move along the horizontal direction shown in Fig. 1; The switch block 16 of fixedly connected this terminal in end of tooth bar 14, for example, the switch block 16 in the present embodiment is USB head (being the USB inserted terminal); The moving horizontally of tooth bar 14 can drive the USB head and stretch out housing 11 or withdrawal housing 11.

When lever 15 during, can stretch out housing 11 thereby promote the USB head so that tooth bar 14 moves right along the direction of arrow shown in Figure 1 rotation.Can be referring to Fig. 3, Fig. 3 is the transverse sectional view two of the utility model terminal embodiment one, lever 15 has rotated 180 degree around the gear shaft of gear 13, make tooth bar 14 promote the USB head and stretch out housing 11 fully, this USB head can be plugged into communication equipments such as computer, sets up the terminal of present embodiment and communicating to connect of computer;

When lever 15 during along the rotation of the opposite direction of the direction of arrow shown in Figure 1, can be so that tooth bar 14 be moved to the left, thus drive in the USB head withdrawal housing 11, referring to shown in Figure 1, when not using, do not lost with protection USB head, improve fail safe.In the rotary course of above-mentioned lever 15, the position of gear 13 in inner chamber 12 fixed, and have only tooth bar 14 to move under the rotation engagement of gear 13 drives, and then it is flexible to drive the USB head.

In the present embodiment, be by being rotated with hand operated lever 15, and then the gear motion by gear 13 and tooth bar 14 promotes tooth bar 14 and moves, the switch block 16 that makes tooth bar 14 ends connect is flexible, simple in structure, is easy to realize, and with respect to the mode of enforcing of pushing of the prior art, more convenient to operate laborsaving, owing to do not re-use versions such as support and draw-in groove, also eliminated the problem that original superstructure loosening hinders motion.

Further, although gear 13 and lever 15 are fixed together, can sideslip when gear 13 moves on tooth bar 14, but, for further stablizing gear in rack-and-pinion gear motion direction, be and make gear 13 in rotary course, can referring to shown in Figure 1, gear locating part 17 can be set in inner chamber 12 further from slippage on the tooth bar.

This gear locating part 17 is arranged on the side of gear 13, and at least along the direction setting that stops gear 13 slippage from the tooth bar.For example, gear 13 can comprise first surface 25 and second surface 28, second surface 28 is relative with the first side wall (being the sidewall of Reference numeral 11 indications shown in Fig. 2) of housing, and first surface 25 is parallel with second surface 28, and is away from described the first side wall relatively; Referring to shown in Figure 2, also be provided with gear locating part 17 on the housing; This gear locating part 17 is arranged on the side of the first surface 25 of gear 13; This gear locating part 17 can prevent gear 13 slippage from the tooth bar when rotated, thereby keeps the fixed-site of gear 13.

This gear locating part 17 for example can be set to a slice precompressed shell fragment, a side that is arranged on gear 13 as shown in fig. 1 perhaps, also can be arranged to around formula, in a plurality of side settings of gear 13, as long as can play the effect that prevents gear 13 slippage from the tooth bar.In addition,,, the gear shaft of gear 13 is coupling, so gear 13 also can be by the position-limit mechanism on this gear shaft by not slippage from the tooth bar of gear 13 with lever 15 because passing housing 11 referring to shown in Figure 2.

By limiting the movement position of gear 13, can be so that simple in structure, gear movement can not take more intracavity space, and has improved the engagement drive of gear mesh tooth bar.

Further,, reduce wear, be convenient for carrying, the spring button of control gear tooth bar motion can be set for making the gear motion of rack-and-pinion when this terminal is not used, not stop.In conjunction with illustrated in figures 1 and 2, this spring button comprises push rod 18 and spring 19.Concrete, above-mentioned gear shaft can be the cylinder of a hollow, has a through hole along its length; 18 of push rods are arranged in this through hole, and, first end 20 of this push rod 18 stretches out outside the housing 11, can conveniently push with hand, second end 21 of push rod 18 connects an end of spring 19, concrete, second end 21 of this push rod 18 can be provided with a spring-housing groove 22, and an end of spring 19 can be built in this spring-housing groove 22; The other end of spring 19 can be connected with spring stator 23, and this spring stator 23 can be fixed on the housing 11.As shown in Figure 2, by pushing first end 20 of push rod 18 with hand, can be so that spring 19 compressions, whole push rod 18 is to left movement.

And the below of second end 21 of push rod 18 is provided with bayonet lock 24, and referring to Fig. 2, this bayonet lock 24 is arranged at that side that is positioned at spring 19 of gear 13, and the first surface 25 of this gear 13 is provided with draw-in groove 26, and this draw-in groove 26 is used to hold bayonet lock 24.Can be referring to shown in Figure 2, the bayonet lock 24 among Fig. 2 has been embedded in the draw-in groove 26, and gear 13 can not rotate at this moment; Press push rod 18 if press...with one's finger, then can promote push rod 18 to left movement, so just can drive the bayonet lock 24 that is arranged on below the push rod also to left movement, then bayonet lock 24 will leave draw-in groove 26, and gear 13 just can rotate once more.In the present embodiment, bayonet lock 24 can be formed in one with push rod 18, perhaps also can be the split structure, and bayonet lock 24 is fixed on the below of push rod 18.

For example, referring to Fig. 2, when pushing first end 20 of push rod 18 with hand, spring 19 compressions and push rod 18 integral body are moved to the left, and drive the bayonet lock 24 that is arranged on the push rod 18 simultaneously and also are moved to the left, and leave draw-in groove 26, at this moment, gear 13 and tooth bar 14 can free gear motions; When openhanded when opening first end 20 of push rod 18, spring 19 flicks and push rod 18 integral body move right, driving the bayonet lock 24 that is arranged on the push rod 18 simultaneously also moves right, embed in the draw-in groove 26, at this moment, because spring button is fixing by spring stator 23, makes gear 13 also be fixed, the gear motion of gear 13 and tooth bar 14 stops.

Wherein, draw-in groove 26 that the position is set is corresponding with the rotation fixed position of lever 15.For example, referring to Fig. 5, Fig. 5 can be provided with draw-in groove a and draw-in groove b for the draw-in groove among the utility model terminal embodiment one is provided with structural representation on the first surface of this gear 13, and this draw-in groove a and draw-in groove b are positioned at same horizontal line.In conjunction with Fig. 1 and shown in Figure 3, when lever 15 is in horizontal level shown in Figure 1, when the USB head is fully retracted in the housing 11, bayonet lock 24 can be stuck among the draw-in groove a, when being in horizontal level shown in Figure 3 when lever 15 Rotate 180 degree, gear 13 also can be along with lever 15 rotations, accordingly, draw-in groove a will rotate to the position of draw-in groove b, if draw-in groove b is not set, because the position of bayonet lock 24 is the invariant positions that are fixed on former draw-in groove a, will cause bayonet lock 24 can't embed in the draw-in groove and can not fixed gear 13, if be provided with draw-in groove b as shown in Figure 4, draw-in groove b will correspondingly rotate to the position of former draw-in groove a, therefore, even lever 15 rotations, bayonet lock 24 also can be embedded into realizes fixing gear 13 among the draw-in groove b.Based on above-mentioned principle, draw-in groove 26 quantity is set and the position can be changed, as long as can be at lever 15 rotation back fixed gears 13.

By above-mentioned spring button, bayonet lock and draw-in groove are set, the gear motion of control gear tooth bar easily makes that rack-and-pinion can free movement when terminal is used, and can stop easily when terminal is not used, thereby reduce wear, and be convenient for carrying.

Further, tooth bar 14 can be arranged in the inner chamber 12 in several ways, and its setting should firmly and can move freely.For example, referring to shown in Figure 2, can on housing 11, be connected and fixed a tooth bar holding tank 27, this tooth bar holding tank 27 is used to hold tooth bar 14, it can be fixedly connected on the housing 11 by an end, and the other end is positioned at the below of tooth bar 14 bottoms, and tooth bar 14 can move in this tooth bar holding tank 27.In addition,, become the strong point one by one,, can guarantee that tooth bar 14 moves smoothly at tooth bar holding tank 27 so can not cause bigger frictional force to tooth bar 14 because tooth bar holding tank 27 can segment design.

Further, the lever 15 shown in Fig. 1 and Fig. 3 is a direct rod shape, in concrete enforcement, can do the embayment shape, and referring to Fig. 4, Fig. 4 is the topology example of the utility model terminal embodiment one.For example, lever can be made gate character shape, reliable in structure; Can also be arranged to the I-shaped shape; Perhaps, one crotch is set, lives operation with pew with convenient in its end; Perhaps, can make wavy so that profile is more attractive in appearance etc.

The terminal of present embodiment, by gear and the tooth bar that is meshed is set in the inner chamber of terminal, utilize the gear motion drive switch block of gear and tooth bar to stretch out or the housing of withdrawing, solved the flexible inconvenient problem of control operation effort of switch block, make and can be rotated with hand operated lever, simple to operate and more laborsaving.

Embodiment two

The terminal of present embodiment is identical with embodiment one described structure, specifically can be described referring to embodiment one, and identical part repeats no more; The difference of the terminal of present embodiment and embodiment one described terminal is that present embodiment is embedded antenna in lever.

Concrete, be example with the USB MODEM among the embodiment one, can be in conjunction with referring to the accompanying drawing 1-accompanying drawing 4 among the embodiment one, embedded antenna in lever 15.The terminal of similar USB MODEM generally all has built-in aerial in inner chamber 12, this built-in aerial can receive wireless signal, so that communication equipments such as computer can be got online without being tethered to a cable etc.; Problems such as signal is weak appear in the signal reception instability of this built-in aerial sometimes, and in the present embodiment, by embedded antenna in lever 15, and control lever 15 is raised to certain angle, just can play the effect of enhancing aerial signal.

For example, the USB head of USB MODEM need stretch out the requirement that 12mm just can reach work, can just can limit the angle of lifting of lever 15, and can make the USB head satisfy above-mentioned extension elongation requirement by the radius of control gear 13.The radius of supposing the gear 13 among Fig. 1 is 3.82mm, and lever 15 needs to rotate 180 degree, the USB head could be stretched out fully (being 12mm); The radius of gear can be carried out following change:

Referring to Fig. 6 and Fig. 7, Fig. 6 is the transverse sectional view one of the utility model terminal embodiment two, Fig. 7 is the transverse sectional view two of the utility model terminal embodiment two, radius that can gear 13 is set to 7.64mm, at this moment, because the radius of gear 13 increases, the position of tooth bar 14 can correspondingly move down, 15 needs of lever rotate 90 degree, just the USB head can be stretched out fully.Accordingly, corresponding with the rotation fixed position of lever 15 at this moment, first draw-in groove and second draw-in groove can be set on the gear 13; Angle between this first draw-in groove and second draw-in groove is 90 degree.

In concrete enforcement, the position that turn 90 degrees is revolved in the signal best angle position of the antenna not necessarily lever shown in Fig. 6, therefore, can be according to the rotation fixed angle and the position of lever 15, the position of the draw-in groove on the relative set gear 13, for example, first draw-in groove can be horizontal corresponding to lever 15, and the angle between second draw-in groove and first draw-in groove can be greater than 0 degree less than 180 degree.In addition,, promptly there be a plurality of revolving to stop angle, corresponding a plurality of draw-in grooves also can be set, realize control, with the maximum signal enhancement function to the antenna operating angle if lever 15 has a plurality of rotations fixed position.

By built-in aerial in lever, can in rotating the flexible process of lever drives switch block by hand, make lever play the effect that strengthens aerial signal simultaneously; Built-in antenna in this lever is owing to be arranged on outside the housing of terminal, and therefore with respect to the built-in aerial in this terminal inner chamber, the ability of received signal is better; And the operating angle of built-in antenna can be stopped angle control by revolving of lever very easily in this lever, reaches the signal best angle position of this antenna easily, improves the signal reception of terminal greatly.

The terminal of present embodiment, by gear and the tooth bar that is meshed is set in the inner chamber of terminal, utilize the gear motion drive switch block of gear and tooth bar to stretch out or the housing of withdrawing, solved the flexible inconvenient problem of control operation effort of switch block, make and can be rotated with hand operated lever, simple to operate and more laborsaving; And, by built-in aerial in lever, can be so that lever plays the effect that strengthens aerial signal in rotation.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. a terminal is characterized in that, comprising: housing, and described housing is enclosed to form the inner chamber of described terminal, and the first side wall of described housing is provided with a through hole;

Be provided with the gear and the tooth bar that are meshed in the described inner chamber, the center of described gear is provided with gear center hole;

One gear shaft is arranged in the described through hole on the first side wall of described housing, and an end of described gear shaft penetrates described gear center hole to drive described gear rotation, the other end of described gear shaft passes outside the described housing, and a rotating parts outer with being arranged on described housing be connected, rotates to drive described gear shaft by described rotating parts;

The end of described tooth bar connects the switch block of described terminal.

2. terminal according to claim 1 is characterized in that described gear comprises first surface and second surface, and described second surface is relative with the first side wall of described housing, and described first surface is parallel with second surface, and is away from described the first side wall relatively;

Also be provided with the gear locating part on the described housing; Described gear locating part is arranged on the first surface side of described gear.

3. terminal according to claim 1 and 2 is characterized in that, also comprises: spring button, and described spring button comprises push rod and spring;

Described gear shaft is the cylinder of hollow, has a through hole along its length;

Described push rod is arranged in the described through hole, and first end of described push rod stretches out outside the described housing, and second end connects an end of described spring, and the other end of described spring is connected with spring stator on being fixed on described housing;

The below of second end of described push rod is provided with bayonet lock, and the surface that is positioned at described spring side of described gear is provided with the draw-in groove that is used to hold described bayonet lock; Described draw-in groove that the position is set is corresponding with the rotation fixed position of described rotating parts.

4. according to claim 1 or 3 described terminals, it is characterized in that, also comprise: the tooth bar holding tank that is used to hold described tooth bar; Described tooth bar holding tank is fixed on the described housing, and is positioned at the below of described tooth bar bottom.

5. terminal according to claim 1 and 2 is characterized in that, described rotating parts is a knob.

6. terminal according to claim 3 is characterized in that, described rotating parts is a lever.

7. terminal according to claim 6 is characterized in that, built-in aerial in the described lever.

8. terminal according to claim 6 is characterized in that, described draw-in groove comprises first draw-in groove and second draw-in groove;

Described first draw-in groove is horizontal corresponding to described lever, and the angle between described second draw-in groove and first draw-in groove is spent less than 180 greater than 0 degree.

9. according to the arbitrary described terminal of claim 1-8, it is characterized in that described terminal is a universal serial bus modulator-demodulator, described switch block is the USB inserted terminal.

10. according to the arbitrary described terminal of claim 1-8, it is characterized in that described terminal is a memory device, described switch block is the USB inserted terminal.