CN112055112B

CN112055112B - Smart phone

Info

Publication number: CN112055112B
Application number: CN202010282587.5A
Authority: CN
Inventors: 于树帅
Original assignee: Shanghai Ruiyi Communication Technology Co ltd
Current assignee: Shanghai Ruiyi Communication Technology Co ltd
Priority date: 2020-04-12
Filing date: 2020-04-12
Publication date: 2022-10-11
Anticipated expiration: 2040-04-12
Also published as: CN112055112A

Abstract

The invention relates to the field of mobile communication equipment, and discloses an intelligent mobile phone which comprises a mobile phone body, an anti-falling frame, anti-falling feet, a locking mechanism and a gravity acceleration sensor capable of sensing the falling state of the mobile phone body; when the smart phone is in an initial mode, the outer contour is smooth, the anti-falling frame is locked at the stroke starting end by the locking mechanism, and the anti-falling feet are accommodated in the accommodating seat and are bound by the anti-falling frame; after the locking mechanism releases the locking of the anti-falling frame, the smart phone is switched to the anti-falling mode, the anti-falling frame and the mobile phone main body are in a cross shape, and the anti-falling feet extend to the outer side of the corner of the mobile phone main body to prevent the mobile phone main body from directly contacting the ground. The smart phone is compact in structure, excellent in falling-preventing performance, capable of giving consideration to basic performance, consistent in appearance with the mainstream design of the existing mobile phone, according with the aesthetic sense of the public, simple in structure of falling-preventing functional parts, low in cost, easy to implement, strong in stability and good in implementation prospect.

Description

Smart phone

Technical Field

The invention relates to mobile communication equipment, in particular to a smart phone with good anti-falling performance.

Background

With the rapid development of science and technology, smart phones have increasingly powerful functions, are not only used as mobile communication devices, but also are integrated into the daily life of people from multiple aspects, and can be called as living necessities of people at present. The existing smart phone generally adopts a large screen and a light and thin design as a mainstream design in order to improve the performances of the aspects of image visual effect, operability, portability, function expansibility and the like, and the problems brought thereby are also obvious, namely the existing smart phone has poor anti-falling performance, particularly, the screen part which is fragile and large in exposed area is extremely easy to crack, the high development of the problem is proved by the promotion of a broken screen risk, the screen is one of core components with high physical and technical content in a high-end smart phone, the manufacturing cost is not good, once the screen part is cracked and cannot be repaired, a whole set of screen components generally needs to be replaced, the user has great economic loss, and the society wastes public resources. Generally, people can provide necessary protection for the self-service smart phone by means of pasting a protective film, installing a protective shell and the like, and although the anti-falling performance of the smart phone is improved to a certain extent, the anti-falling performance of the smart phone obviously goes against the original purpose of the design of the existing smart phone at the cost of sacrificing the performances such as image visual effect, touch screen sensitivity, heat dissipation effect and portability. Therefore, on the premise of ensuring the comprehensive performance of the smart phone, the improvement of the anti-falling performance of the smart phone is very necessary and significant, and is one of important research and development directions of the future mobile phones.

In the prior art recorded in the literature, technical schemes related to the fall-preventing performance of smart phones are not uncommon, the adopted fall-preventing mechanisms are different and can not be set, and some technical schemes can achieve better fall-preventing effects theoretically, but because the related mobile parts have the defects of complex structure, high manufacturing cost, high implementation difficulty or the fact that the fall-preventing function can only be started for limited times, the practicability is poor and the appearance is not attractive enough, the technical schemes still stay in the conceptual stage and cannot be applied to the existing smart phones.

Disclosure of Invention

The invention aims to provide a smart phone which has good anti-falling performance, small adverse effect on other basic performances and attractive appearance.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

the utility model provides an intelligent mobile phone, includes the cell-phone main part, and cell-phone main part front side is the screen, and inside is equipped with owner processor, by the vibrations subassembly of motor and eccentric block constitution, its characterized in that:

a closed-loop anti-falling frame is arranged outside the mobile phone main body and has a rotation stroke through the support of two support shafts symmetrically arranged on the mobile phone main body; when the anti-falling frame is positioned at the starting end of the stroke, the anti-falling frame is sleeved on the outer sides of the upper, lower, left and right peripheries of the mobile phone main body, and when the anti-falling frame rotates to the terminal end of the stroke, the anti-falling frame and the mobile phone main body are crossed and extend to the front side and the rear side of the mobile phone main body; elastic components for driving the anti-falling frame to rotate from the stroke starting end to the stroke terminal are respectively arranged at the two supporting shafts;

a placing seat is arranged in each of four corners of the mobile phone main body, and a falling-proof foot with a linear moving stroke is limited in each placing seat; when the anti-falling foot is positioned at the stroke starting end, the anti-falling foot is accommodated in the arranging seat, when the anti-falling foot is positioned at the stroke terminal, the anti-falling foot extends to the outer side of the corner part of the mobile phone main body, and an elastic component for driving the anti-falling foot to move from the stroke starting end to the stroke terminal is arranged in the arranging seat; when the anti-falling feet and the anti-falling frames are located at the starting ends of respective strokes, the anti-falling feet are bound by the anti-falling frames and cannot move, and at the moment, the smart phone is in an initial mode and the outer contour is smooth; when the anti-falling frame rotates towards the stroke terminal, the four anti-falling feet lose constraint and pop up respectively, and then the smart phone is switched to an anti-falling mode;

the mobile phone body is internally provided with a locking mechanism, the locking mechanism comprises a slide block which is limited by a track and has a linear moving stroke, and a reset spring which drives the slide block to reset to the stroke starting end, a locking pin and a deflector rod are fixed on the slide block, the outer end of the locking pin is a spherical end, and a positioning pit is arranged on the inner side wall of the anti-falling frame; when the sliding block is positioned at the stroke starting end, the spherical end extends out of the mobile phone main body and is matched with the positioning pit to lock the anti-falling frame at the stroke starting end, and when the sliding block is positioned at the stroke terminal end, the spherical end cannot be matched with the positioning pit to unlock the anti-falling frame; the output shaft of the motor is provided with a cam matched with a ratchet mechanism, so that the output shaft of the motor can drive the cam to synchronously rotate forwards along with the cam only when the output shaft of the motor rotates forwards; in the process of forward rotation of the cam for one circle, the deflector rod is pushed by the outer edge to move so as to drive the sliding block to move to the stroke end, and then the convex part of the cam is separated from the deflector rod;

a gravity acceleration sensor is arranged in the mobile phone main body, the main processor can monitor the free falling state of the mobile phone main body by means of the gravity acceleration sensor, a time threshold value T1 is preset in the main processor, and if and only if the main processor monitors that the mobile phone main body falls in the free falling body movement and the falling duration time T2 is equal to T1, the output shaft of the motor rotates forwards and rotates at least one circle, so that the smart phone is switched into an anti-falling mode to prevent any part of the mobile phone main body from directly contacting the ground; when the vibration component provides a vibration effect for the smart phone, the output shaft of the motor rotates reversely; after the main processor stops the motor, the cam is positioned so as not to prevent the slide from returning to the stroke beginning.

The working principle and the anti-falling mechanism of the smart phone are as follows:

when the intelligent mobile phone is normally used, an initial mode is maintained, namely the anti-falling frame is sleeved on the periphery of the outer side of the mobile phone main body, and the anti-falling feet are accommodated in four corners of the mobile phone main body; when the main processor monitors that the smart phone falls and reaches a certain height, the smart phone is switched and instantly reaches an anti-falling mode, namely, the anti-falling frame and the anti-falling foot respectively move to respective stroke terminals to prevent the main body of the smart phone from directly contacting the ground; under preventing falling the mode, can be manual will prevent falling the foot and prevent that falling the frame and adjust to the stroke top to will prevent falling the frame locking with the help of locking mechanical system, be about to the smart mobile phone and restore to initial mode.

The beneficial effect of this smart mobile phone does:

because the anti-falling frame and the anti-falling feet which are core components for realizing the anti-falling function adopt delicate structural design, the anti-falling performance is improved, and the anti-falling frame and the anti-falling feet can not substantially adversely affect other basic performances of the smart phone, and can be made of low-density and high-strength materials and combined with compact structural design, the appearance difference between the smart phone and the existing smart phone is further reduced, so that the use habit of the public is met, and the influence of the anti-falling frame and the anti-falling feet on the portability and the operation convenience of the smart phone is reduced; because this smart mobile phone prevents falling the function and realize based on mechanical principle completely, prevent falling the frame and prevent falling the foot and can reset to respective stroke top, make smart mobile phone by preventing falling the mode and restore to initial mode for this smart mobile phone prevents falling the number of times of use of function and does not have the restriction. In this smart mobile phone, gravity acceleration sensor is one of the core parts that realize preventing falling the function, although its cost is comparatively expensive, but it still can hold other numerous functions except preventing falling the function concurrently, can make the best use of the cost performance of promotion smart mobile phone, reduced to a certain extent and realized preventing falling the required cost input of function, meanwhile, in current a great deal of high-end smart mobile phones, gravity acceleration sensor is for marking the accessory component in fact, make this prevent that the scheme of falling is easy low-cost implementation, and the same reason, the motor can provide vibrations effect for smart mobile phone on the one hand, on the other hand can provide drive power for locking mechanical system, can two birds with one stone, have the same beneficial effect with gravity acceleration sensor's application mode. To sum up, the smart phone has a compact structure, excellent anti-falling performance, can give consideration to other basic performances of the phone, has the appearance consistent with the mainstream design of the existing phone, accords with the mass aesthetic, has a simple structure of anti-falling functional parts, is low in cost, easy to implement and strong in stability, and has a good implementation prospect.

Drawings

Fig. 1 is a schematic state diagram of a smartphone in an initial mode in embodiment 1.

Fig. 2 is a schematic view of an internal structure of the smart phone in embodiment 1.

Fig. 3 is a second schematic view of the internal structure of the smart phone in embodiment 1.

Fig. 4 is a schematic state diagram of the smart phone in the fall-down prevention mode in embodiment 1.

Fig. 5 is one of the structural schematic diagrams of the lock mechanism in embodiment 1.

Fig. 6 is a second schematic structural view of the locking mechanism in embodiment 1.

Fig. 7 is a schematic structural diagram of the vibration assembly providing a vibration effect to the smart phone in the initial mode.

Fig. 8 is a schematic structural view of the locking mechanism of embodiment 1 when the locking mechanism releases the locking action on the fall-down preventing bezel.

Fig. 9 is a schematic diagram of a state in which the smartphone of embodiment 1 lands in different situations in the fall-prevention mode.

Fig. 10 is a schematic view of the assembly of the fall-resistant bezel, the handset body, the support shaft, and the elastic member in embodiment 1.

Fig. 11 is a schematic view of the combination of the mobile phone main body, the seat, the falling-proof leg and the elastic member in embodiment 1.

Fig. 12 is a schematic view illustrating a state where the active bezel drives the passive bezel to rotate via the unidirectional synchronization mechanism in embodiment 2.

Fig. 13 is a schematic view of embodiment 2 showing a state in which the passive bezel is rotated to the rear side of the handset body in the initial mode.

Fig. 14 is a schematic view of the passive bezel of embodiment 2 in a state of being used as a simple stand.

Fig. 15 is a schematic view of the combination of the active bezel, the passive bezel, and the one-way synchronization mechanism in embodiment 2.

Fig. 16 is a schematic view of an improved structure of the passive bezel of embodiment 2 at the beginning of the stroke for positioning by the anti-falling foot.

Fig. 17 is a schematic view of an internal partial structure of the smartphone according to embodiment 3.

FIG. 18 is a schematic view showing the combination of the pull wire, the check pawl, the check groove and the anti-falling leg in example 3.

Fig. 19 is a schematic view of a passive frame in embodiment 3 as a simple support.

Fig. 20 is a schematic structural view of the smart phone of embodiment 4 with a positioning mechanism added.

Fig. 21 is a schematic view of the combination of the mobile phone body, the positioning mechanism, and the passive bezel in embodiment 4.

In the figure, 1, a support shaft, 2, an anti-falling foot, 201, a foot, 202, a leg, 3, an anti-falling frame, 301, an active frame, 302, a passive frame, 4, a mobile phone body, 5, a screen, 6, a gravity acceleration sensor, 7, a locking mechanism, 701, a positioning pit, 702, a spherical end, 703, a locking pin, 704, a cam, 705, a deflector rod, 706, a return spring, 707, a rail, 708, a slider, 8, a setting seat, 801, a notch, 9, a shaft seat, 10, a torsion spring, 11, a spring sheet, 12, an eccentric block, 13, a motor, 14, an output shaft, 15, a ratchet mechanism, 16, a pawl, 17, a ratchet, 18, a one-way synchronization mechanism, 181, an arc-shaped groove, 182, a convex column, 19, a positioning groove, 20, a positioning bulge, 21, a check pawl, 22, a pull wire, 23, a check groove, 24, an iron sheet, 25, a magnetic sheet, 26 and a micro-sized electromagnet.

Detailed Description

Example 1

Referring to fig. 1-3, a smart phone disclosed in this embodiment includes a phone body 4, an anti-falling frame 3, an anti-falling foot 2, a locking mechanism 7, and a gravity acceleration sensor 6;

referring to fig. 1, 2 and 3, a screen 5 is arranged on the front side of the mobile phone main body 4, a main processor and a vibration component are arranged in the mobile phone main body, the vibration component comprises a motor 13 and an eccentric block 12 fixed on an output shaft 14 of the motor 13, and the output shaft 14 of the motor 13 drives the eccentric block 12 to rotate so as to provide a vibration effect for the smart phone;

referring to fig. 1 and 4, the anti-falling frame 3 is in a closed ring shape, is arranged outside the mobile phone body 4, and is supported by two support shafts 1 symmetrically arranged on the mobile phone body 4, so as to have a rotation stroke; when the anti-falling frame 3 is positioned at the starting end of the stroke, the anti-falling frame is sleeved on the outer sides of the upper, lower, left and right peripheries of the mobile phone main body 4; when the anti-falling frame 3 rotates to the stroke end, the anti-falling frame and the mobile phone body 4 are crossed and extend to the front side and the rear side of the mobile phone body 4; elastic components are respectively arranged at the two support shafts 1 and are used for driving the anti-falling frame 3 to rotate from the stroke starting end to the stroke terminal end;

referring to fig. 1-4, four anti-falling feet 2 are provided and are respectively arranged in the seating seats 8 arranged at four corners of the mobile phone body 4, and the anti-falling feet 2 are limited by the seating seats 8 to have a linear moving stroke; when the anti-falling foot 2 is located at the stroke start end, the anti-falling foot 2 is accommodated in the accommodating seat 8, when the anti-falling foot 2 is located at the stroke end, the anti-falling foot 2 extends to the outer side of the corner of the mobile phone main body 4 but cannot be separated from the accommodating seat 8, and an elastic component for driving the anti-falling foot 2 to move from the stroke start end to the stroke end is arranged in the accommodating seat 8; when the anti-falling feet 2 and the anti-falling frame 3 are both at the initial end of the stroke, the anti-falling feet 2 are constrained by the anti-falling frame 3 and cannot move, at the moment, the smart phone is in an initial mode, in this state, the outline of the smart phone is smooth, namely, no abrupt structure exists outside the smart phone, and therefore the appearance and the hand feeling of the smart phone in the using process are ensured to be the same as those of the existing mobile phone; when the anti-falling frame 3 rotates towards the stroke terminal, the four anti-falling feet 2 lose constraint and pop up respectively, and then the smart phone reaches an anti-falling mode, namely the anti-falling frame 3 and the four anti-falling feet 2 are located at respective stroke terminals;

referring to fig. 2, 5, 6, 7 and 8, the locking mechanism 7 is disposed in the handset main body 4, and includes a slide 708 defined by a track 707 and having a linear moving stroke, a return spring 706 for returning the slide 708 to the beginning of the stroke, and a locking pin 703 and a lever 705 fixed to the slide 708; the outer end of the locking pin 703 is a spherical end 702, and a positioning pit 701 for matching with the spherical end 702 is arranged on the inner side wall of the anti-falling frame 3; as shown in fig. 7, when the slider 708 is located at the beginning of the stroke, the ball-shaped end 702 extends out of the mobile phone body 4 and cooperates with the positioning hole 701 to lock the anti-falling bezel 3 at the beginning of the stroke, even if the smart phone maintains the initial mode; as shown in fig. 8, when the slider 708 is located at the end of the stroke, the spherical end 702 cannot cooperate with the positioning hole 701 to unlock the anti-falling frame 3, and then the smart phone will automatically switch to the anti-falling mode; a cam 704 is arranged on an output shaft 14 of the motor 13 in the vibrating assembly, and the output shaft 14 is matched with the cam 704 through a ratchet mechanism 15, so that the output shaft 14 provides unidirectional drive for the cam 704, namely the output shaft 14 of the motor 13 can drive the cam 704 to synchronously rotate forwards along with the cam when rotating forwards; during the forward rotation of the cam 704 for one circle, the rod 705 is pushed by the outer edge to move, so that the sliding block 708 is driven to move to the stroke end, and then the protruding part of the cam 704 is separated from the rod 705; in short, the locking mechanism 7 can maintain the smartphone in the initial mode, as shown in fig. 8, when the output shaft 14 of the motor 13 rotates forward at least one time, the locking mechanism 7 will release the locking of the anti-falling frame 3, so that the smartphone is switched to the anti-falling mode, as shown in fig. 7, the station state of the locking pin 703 is not changed during the reverse rotation of the output shaft 14 of the motor 13;

referring to fig. 2, 3, 7 and 8, the gravity acceleration sensor 6 is disposed inside the mobile phone body 4, and can perform signal transmission with the main processor, so that the main processor can monitor the free-falling state of the mobile phone body 4 by means of the gravity acceleration sensor 6; a time threshold value T1 is preset in the main processor, and when and only when the main processor monitors that the mobile phone main body falls in a free-fall motion and the falling duration time T2 is equal to T1, the output shaft 14 of the motor 13 rotates forwards and rotates at least one circle to prompt the locking mechanism 7 to release the locking of the anti-falling frame 3, so that the smart phone is switched into an anti-falling mode, namely the anti-falling frame 3 and the four anti-falling legs 2 quickly reach respective stroke terminals to prevent any part of the mobile phone main body 4 from directly contacting with the ground; when the vibration component provides a vibration effect for the smart phone, the main processor enables the output shaft 14 of the motor 13 to rotate reversely, so that the station state of the locking pin 703 cannot be changed; after the main processor stops the motor 13, the cam 704 is positioned so as not to prevent the slider 708 from returning to the beginning of its travel, so as to ensure that the locking mechanism 7 has the ability to lock the drop-resistant rim 3 again.

referring to fig. 1, in a normal use process, the locking mechanism 7 provides a locking effect on the anti-falling frame 3, so that the smart phone is kept in an initial mode, namely, the anti-falling frame 3 is sleeved around the outer side of the mobile phone main body 4, the anti-falling feet 2 are accommodated in four corners of the mobile phone main body 4, the overall appearance of the smart phone is smooth and smooth in this state, the difference between the overall appearance, the use mode and the hand-held feeling of the smart phone and the existing mobile phone is small, and the anti-falling frame 3 is sleeved around the mobile phone main body 4 and can play a certain protection role. Referring to fig. 3, 4, 8, and 9, when the main processor monitors that the smart phone falls and reaches a certain height, which indicates that there is a risk of breaking, the main processor will rotate the output shaft 14 of the motor 13 forward and rotate at least one turn, i.e. drive the locking mechanism 7 to unlock the anti-falling frame 3, and the anti-falling frame 3 and the four anti-falling legs 2 will move to respective stroke terminals quickly and timely under the action of respective elastic components, so that the smart phone reaches the anti-falling mode, so as to prevent the phone body 4 from directly contacting the ground, because the anti-falling frame 3 is frame-shaped and is rotatably connected with the phone body 4, when the anti-falling frame 3 contacts the ground, the anti-falling legs 2 can deform and rotate to a certain extent, and the anti-falling legs 2 can extend and retract to a certain extent, based on the above characteristics of the anti-falling frame 3 and the anti-falling legs 2, when the smart phone falls, the anti-falling frame 3 and the anti-falling legs 2 can buffer the impact force well, so as to reduce the stress of the phone body 4, thereby ensuring the safety of the internal components and the screen 5, and finally realizing good anti-falling performance, and avoiding the screen breaking to the greatest extent; under the anti-falling mode, when the anti-falling frame 3 is manually driven to move towards the stroke starting end, the spherical end 702 is stressed to drive the sliding block 708 to move towards the stroke terminal direction, when the anti-falling frame 3 reaches the stroke starting end, under the action of the return spring 706, the spherical end 702 automatically falls into the positioning pit 701 to lock the anti-falling frame 3, that is, the smart phone is restored to the initial mode.

Referring to fig. 1 and 2, generally speaking, according to the design habit of the existing mobile phone, the functional components such as the on-off key, the volume key, the earphone hole, and the power hole are disposed on the sidewall of the mobile phone main body 4, and the smart phone should avoid the functional components from being blocked by the falling-proof frame 3 in the initial mode, and in the specific implementation process, the functional components such as the on-off key, the volume key, the earphone hole, and the power hole can be disposed in the side area of the mobile phone main body 4 that the falling-proof frame 3 cannot cover, and meanwhile, corresponding notches and holes can be formed on the falling-proof frame 3, so as to ensure that the functional components on the sidewall of the mobile phone main body 4 can be exposed.

Referring to fig. 3 and 10, in the smart phone, the specific matching structure among the anti-falling frame 3, the phone body 4, the supporting shaft 1 and the elastic component has various embodiments, and is preferably implemented as follows:

the middle parts of two opposite sides of the mobile phone main body 4 are respectively provided with a shaft seat 9, the support shafts 1 are matched with the shaft seats 9 and can only relatively rotate, two side parts of the anti-falling frame 3 are respectively connected with the two support shafts 1, so that the anti-falling frame 3 can integrally rotate around the shaft seats 9, and the anti-falling frame 3 can only rotate within a rotation stroke by arranging a limiting mechanism between the anti-falling frame 3 and the mobile phone main body 4; the elastic part at the supporting shaft 1 adopts a torsion spring 10 which is arranged in the shaft seat 9 and surrounds the supporting shaft 1, and can drive the supporting shaft 1 to drive the anti-falling frame 3 to rotate from the stroke starting end to the stroke terminal end; in order to ensure that the anti-falling frame 3 can rotate towards the direction of the stroke starting end as much as possible after the anti-falling frame 3 is grounded when the smart phone falls in the anti-falling mode, so as to buffer the impact force by means of the elastic force of the elastic part, and the rotation angle corresponding to the rotation stroke of the anti-falling frame 3 should be smaller than 90 degrees.

Referring to fig. 2, 3 and 11, in the smart phone, the specific matching structure of the phone body 4, the seat 8, the falling-prevention leg 2 and the elastic component has various embodiments, and preferably, the following embodiments are adopted:

the placing seat 8 is drawer-shaped and is provided with a notch 801, and the notch 801 is positioned on the side wall of the corner of the mobile phone main body 4; the anti-falling foot 2 is composed of a leg part 202 and a foot part 201 which are fixedly connected, the leg part 202 is limited in the setting seat 8 and can slide without being separated from the setting seat 8, and therefore the anti-falling foot 2 can slide in a linear movement stroke; an inner cavity is formed in the inner end of the leg part 202, an elastic component for driving the anti-falling foot 2 to move towards the stroke terminal is arranged between the inner cavity and the bottom of the placing seat 8, and the elastic component is a spring or an elastic sheet 11; when the falling-proof feet 2 are positioned at the initial end of the stroke, the leg part 202 is completely positioned in the placing seat 8, the inner end of the leg part 202 is contacted with the bottom of the placing seat 8, the elastic component is in a compressed state and is contained in the inner cavity of the leg part 202, the foot part 201 seals the notch 801, and the corner part of the mobile phone main body 4 is complete and smooth; when the smart phone is in the initial mode, the foot 201 is located inside the anti-falling frame 3 and cannot move, so that the anti-falling foot 2 is kept in the row Cheng Shiduan;

after the mobile phone main body 4, the placing seat 8, the falling-preventing legs 2 and the elastic component adopt the above structure, the sizes of the legs 202 and the placing seat 8 can be reduced to the maximum extent to reduce the occupation of the internal space of the mobile phone main body 4, and the sizes of the legs 201 can be increased appropriately to improve the protection performance of the matching of the falling-preventing legs and the falling-preventing frame 3 in the falling-preventing mode.

Referring to fig. 4 and 9, as is known, when a mobile phone falls, the landing position of the mobile phone is uncertain, but in the implementation process of the smart phone, as long as the overall size of the mobile phone body 4 is combined, the size of the anti-falling frame 3 and the anti-falling leg 2, the relative position of the anti-falling frame 3, the anti-falling leg 2, and the mobile phone body 4 in the anti-falling mode, and other structural parameters are scientifically debugged, so that any part of the mobile phone body 4 cannot be in direct contact with the ground when the smart phone falls to the ground, that is, any part of the mobile phone body 4, which can be prevented from falling down by the anti-falling frame 3 and the anti-falling leg 2 in the anti-falling mode, is in direct contact with the ground, and the mobile phone body 4 is provided with an all-directional anti-falling protection without dead corners.

Referring to fig. 5-8, in the smart phone, the motor 13 has two functions, that is, as shown in fig. 7, the motor 13 provides a vibration effect to the smart phone through the reverse rotation of the output shaft 14 during normal use, and on the other hand, as shown in fig. 8, when the smart phone drops, the motor 13 drives the locking mechanism 7 to unlock the anti-falling frame 3 through the forward rotation of the output shaft 14, so that the smart phone is switched to the anti-falling mode, which can achieve two purposes, thereby greatly reducing the manufacturing cost of the smart phone; in the foregoing description, the output shaft 14 has two operating states of forward rotation and reverse rotation, and the so-called "forward rotation" and "reverse rotation" are relative terms, and are only one setting of the rotating state of the output shaft 14 for convenience of description, and a rotating state in which the output shaft 14 can drive the cam 704 to rotate synchronously is defined as forward rotation, and conversely, reverse rotation; the relative positions of the output shaft 14, the cam 704, the lever 705 and other related components are not limited to one type, and therefore, in different embodiments, the actual rotational direction of the output shaft 14 corresponding to the so-called forward rotation is not necessarily the same; the ratchet mechanism 15 between the output shaft 14 and the cam 704 is a core functional component of the motor 13 for realizing the above two functions, the output shaft 14 can provide unidirectional driving for the cam 704 through the ratchet mechanism 15, and as far as the prior art is concerned, the ratchet mechanism 15 has various possible embodiments, such as referring to a matching structure of a rear wheel and a chain wheel of a bicycle, namely, a circle of ratchet teeth 17 is arranged on one of the cam 704 and the output shaft 14, a pawl 16 matched with the ratchet teeth 17 is arranged on the other, and the output shaft 14 can realize unidirectional driving for the cam 704 under the matching of the ratchet teeth 17 and the pawl 16.

In the smart phone, the gravity acceleration sensor 6 is one of the core components for realizing the anti-falling function, although the cost is high, the gravity acceleration sensor can also have other functions besides the anti-falling function, the cost performance of the smart phone can be improved as much as possible, and the cost investment required for realizing the anti-falling function is reduced to a certain extent; meanwhile, in a plurality of high-end existing smart phones, the gravity acceleration sensor 6 is a standard component, and the function of the gravity acceleration sensor can be directly expanded to be used in the anti-falling function, so that the scheme is easier to implement, and the implementation cost is lower.

In the smart phone, a time threshold T1 is preset in a main processor, and the time threshold T1 is used as a time reference value for judging whether to start the anti-falling mode of the smart phone; when the mobile phone main body 4 falls in a free-fall motion and the falling duration time T2 is less than T1, it indicates that the falling height of the smart phone is small, and there is no risk of breaking, and it may be intended by the user, for example, when people are usually used to throw the mobile phone directly on a bed or a sofa, the smart phone is not switched to the fall prevention mode in this case, and unnecessary trouble is avoided from being brought to the user; when the mobile phone main body 4 falls in a free-fall motion and the falling duration time T2 is equal to T1, it indicates that the falling height of the smart phone is large and the possibility of continuous accelerated falling exists, and in this case, the risk of being broken is extremely high, and the smart phone is switched to the anti-falling mode to improve the anti-falling performance. As for the specific value of the time threshold T1, a reasonable value can be determined by performing multiple debugging operations in combination with the use habits of the public, the anti-falling performance of the smartphone in the initial mode, the time required for the smartphone to reach the anti-falling mode from the initial mode, and other factors.

In the smart phone, the anti-falling frame 3 and the anti-falling feet 2 can be made of low-density and high-strength materials and are combined with a compact structural design, so that the appearance difference between the smart phone and the existing mobile phone is further reduced, the use habit of the public is met, and the adverse effects of the anti-falling frame 3 and the anti-falling feet 2 on the portability and the operation convenience of the smart phone are reduced; meanwhile, the anti-falling frame 3 and the anti-falling foot 2 are made of good elastic materials so as to further improve the impact force buffering effect when the smart phone falls to the ground; based on the above, prevent falling frame 3 and prevent falling foot 2 preferentially adopt polymer composite to make.

Referring to fig. 4 and 9, based on the structure adopted by the smart phone, when the smart phone falls to the ground, the stress on the phone body 4 is mainly concentrated on the contact portions with the two support shafts 1 and the four anti-falling legs 2, so in order to further improve the anti-falling performance of the smart phone, the phone body 4 should adopt means such as thickening or adding reinforcing ribs to ensure the local strength at the portions where the two support shafts 1 and the four anti-falling legs 2 are arranged, so as to improve the overall service life of the smart phone.

The smart phone is compact in structure, excellent in anti-falling performance, capable of considering other basic performances of the phone, consistent in appearance with mainstream design of the existing phone, and capable of meeting public aesthetic and use habits, simple in structure of anti-falling functional parts, easy to implement and strong in stability, and meanwhile, the anti-falling function is completely realized based on a mechanical principle, the use times of the anti-falling function is not limited, and therefore the smart phone has a good implementation prospect.

Example 2

People usually like to install the simple support at the rear side of the mobile phone, and the mobile phone can be transversely and obliquely placed on a desktop by the aid of the simple support, so that the mobile phone does not need to be held by a hand for a long time when being operated for watching movies and the like, and people can enjoy the effects of relaxing and comfort. At present, generally, a high-quality simple support is usually made of a metal material and tends to influence the portability of a mobile phone to a certain extent, and meanwhile, the simple support is usually adhered and fixed with the mobile phone by using a colloid, is unstable in connection mode and is very easy to separate from the mobile phone, and a colloid mark which is difficult to remove is left on the rear side of the mobile phone after falling off. The embodiment further improves the structure of the smart phone disclosed in the embodiment 1, and can overcome the defects existing in the matching use process of the existing mobile phone and the simple support. The scheme adopted is as follows:

referring to fig. 12, 13 and 14, the two support shafts 1 are respectively located in the middle of the upper end and the middle of the lower end of the mobile phone body 4; the anti-falling frame 3 is composed of an active frame 301 and a passive frame 302 which are symmetrical in shape and are both arc-shaped, two ends of the active frame 301 and two ends of the passive frame 302 are supported by two supporting shafts 1, so that the active frame 301 and the passive frame 302 respectively have a rotation stroke, the locking mechanism 7 and the elastic components at the two supporting shafts 1 only act on the active frame 301, and a one-way synchronization mechanism 18 is arranged between the active frame 301 and the passive frame 302; when the smart phone is in an initial mode, the active frame 301 and the passive frame 302 are located at respective stroke starting ends and respectively constrain two adjacent anti-falling feet 2 at the stroke starting ends, that is, the anti-falling frame 3 is located at the stroke starting end as a whole; when the locking mechanism 7 unlocks the active frame 301, the active frame 301 drives the passive frame 302 to rotate together with the passive frame to respective stroke terminals through the one-way synchronization mechanism 18, that is, the anti-falling frame 3 rotates integrally to the stroke terminals, the smart phone switches to the anti-falling mode, and the active frame 301 and the passive frame 302 are located on the front side and the rear side of the mobile phone main body 4 respectively; in the initial mode, the passive frame 302 can be manually rotated to the rear side of the mobile phone body 4, and the unidirectional synchronization mechanism 18 does not drive the active frame 301 to rotate in the process, and then the mobile phone body 4 can be supported by the passive frame 302 at the rear side thereof and the anti-falling legs 2 extending from two corners to be placed on the desktop in a laterally inclined manner.

After the smart mobile phone adopts the above structural design, the anti-falling frame 3 not only plays a role in protecting in the anti-falling mode, but also can perform simple manual operation on the passive frame 302, and make it provide support for the mobile phone main body 4 from the rear side as a simple support, make the mobile phone main body 4 can transversely incline and place on the desktop, through adjusting the angle of the passive frame 302 and the mobile phone main body 4, can adjust the inclination angle of the mobile phone main body 4 when placing on the desktop, and is convenient and practical. Meanwhile, when the smart phone is held in hand, the passive frame 302 can be manually rotated to the rear side of the mobile phone main body 4, so that the passive frame 302 is sleeved on the hand, and a certain anti-falling effect is achieved. In addition, when the people will be moved frame 302 and rotate to cell-phone main part 4 rear side, two that correspond prevent falling foot 2 and will move to the stroke terminal automatically, though two that correspond under this state prevent falling foot 2 and extend to cell-phone main part 4 outsidely, do not influence the result of use that the smart mobile phone placed behind the desktop, on the contrary, two that stretch out prevent falling foot 2 and can play landing leg and skid-proof effect, make people's more comfortable 5 pictures of watching screen.

Referring to fig. 12 and 13, in the above structure, a one-way synchronization mechanism 18 is disposed between the active frame 301 and the passive frame 302, and the one-way synchronization mechanism 18 is disposed in such a way that, on one hand, when the smart phone switches from the initial mode to the anti-falling mode, after the locking mechanism 7 releases the locking of the anti-falling frame 3, the one-way synchronization mechanism 18 can ensure that the active frame 301 and the passive frame 302 rotate synchronously, thereby ensuring that the anti-falling frame 3 can reach the stroke end position as a whole; on the other hand, when the smartphone is in the initial mode, the one-way synchronization mechanism 18 allows the passive bezel 302 to rotate to the rear side of the phone main body 4 with the active bezel 301 held at the start of the stroke, so as to achieve the purpose of using it as a simple stand;

referring to fig. 12, 13 and 15, based on the above arrangement of the one-way synchronizing mechanism 18, the prior art has many embodiments, for example, the one-way synchronizing mechanism 18 may be composed of an arc-shaped groove 181 and a convex pillar 182 which are slidably engaged, the arc-shaped groove 181 and the convex pillar 182 are respectively disposed on two opposite surfaces of the hinge joint of the active frame 301 and the passive frame 302, and the central axes of the arc-shaped groove 181 and the support shaft 1 coincide; in the initial mode, when the driving frame 301 rotates from the beginning of the stroke to the end of the stroke, the protruding pillar 182 abuts against the end of the arc-shaped groove 181 to ensure that the driven frame 302 rotates synchronously with the driving frame 301, and when the driven frame 302 is manually rotated, the protruding pillar 182 slides in the arc-shaped groove 181 so that the driven frame 302 does not drive the driving frame 301 to rotate, thereby achieving the above-mentioned setting purpose of the unidirectional synchronization mechanism 18.

Referring to fig. 14, generally speaking, the passive frame 302 only needs to be located at the rear side of the mobile phone body 4 in the fall-prevention mode and when being used as a simple support, and should be located at the beginning of the travel in most other times, for example, when the smart phone is in normal use, the passive frame 302 sometimes automatically separates from the beginning of the travel, which is bound to bring a certain trouble to the user. In the smart phone, in the initial mode, the two anti-falling feet 2 corresponding to the passive frame 302 exert a certain acting force on the passive frame, so as to provide a certain positioning effect for the passive frame 302 located at the beginning of the stroke, so that the passive frame 302 does not automatically separate from the beginning of the stroke; meanwhile, in order to improve the positioning effect of the falling-prevention feet 2 on the passive frame 302, the passive frame 302 and the corresponding two falling-prevention feet 2 can be further improved:

as shown in fig. 16, two positioning slots 19 are formed on the inner side of the passive frame 302, and spherical positioning protrusions 20 are respectively disposed on the two falling-preventing legs 2 corresponding to the passive frame 302; when the passive frame 302 and the two corresponding falling-prevention legs 2 are located at the beginning positions, the two falling-prevention legs 2 abut against the inner side of the passive frame 302 and are bound by the passive frame 302 in the row Cheng Shiduan, and meanwhile, the two positioning protrusions 20 just fall into the two positioning grooves 19, so that the passive frame 302 is limited at the beginning of the stroke;

in the above structure adopted by the passive frame 302 and the two anti-falling legs 2, the two anti-falling legs 2 have a tendency to move towards the stroke end under the action of the elastic component, so the structure formed by the anti-falling legs 2 and the positioning protrusions 20 can be regarded as a ball plunger, and can provide a proper positioning function for the passive frame 302; on one hand, in the normal use process of the smart phone, the passive frame 302 is kept at the stroke starting end and cannot be separated automatically, and on the other hand, when the anti-falling mode is switched, the passive frame 302 is driven by the active frame 301 to be separated from the positioning effect of the anti-falling feet 2, so that the passive frame 302 can rotate synchronously with the active frame 301; in addition, the passive frame 302 can be manually driven to be separated from the positioning function of the falling-preventing leg 2, so that the passive frame 302 can be rotated to the rear side of the mobile phone main body 4 to serve as a simple support.

In addition, as shown in fig. 14, when the passive frame 302 is rotated to the rear side of the mobile phone body 4 to be used as a simple stand, it and the mobile phone body 4 should be able to maintain an adjusted angle, so that the mobile phone body 4 can stably maintain a desired tilt angle; in the specific implementation process, the above effects can be better achieved by reasonably adjusting the rotation resistance of the passive frame 302.

Example 3

Referring to fig. 14, in the smart phone disclosed in embodiment 2, when the passive frame 302 is used as a simple support, the two corresponding anti-falling legs 2 extend to the outside of the host body, although this phenomenon does not substantially affect the using effect of the smart phone, the appearance of the smart phone in this state is not acceptable to the public. Therefore, in this embodiment, a further improvement is made on the basis of the structure of the smart phone disclosed in embodiment 2 to overcome the foregoing deficiency, and the adopted improved structure is as follows:

referring to fig. 17 and 18, the mobile phone body 4 is provided with a check claw 21 at each of the two seats 8 corresponding to the passive frame 302, and each of the two corresponding anti-falling legs 2 is provided with a check groove 23; the two anti-stop claws 21 are respectively connected with the adjacent supporting shafts 1 through a pull wire 22, and the two supporting shafts 1 and the driving frame 301 cannot rotate relatively; when the driving frame 301 is at the initial position, the pull wire 22 does not pull the anti-falling foot 2, and after the anti-falling foot 2 moves to the initial end of the stroke, the anti-falling foot 21 automatically falls into the anti-falling groove 23 to prevent the anti-falling foot 2 from moving towards the terminal direction of the stroke; when the driving frame 301 rotates from the stroke beginning to the stroke end, the anti-falling claws 21 are pulled by the tension lines 22 and cannot be matched with the anti-falling grooves 23, and then the two anti-falling claws 21 do not form an obstacle to the movement of the two anti-falling feet 2.

Therefore, as shown in fig. 17, 18, and 19, when the smart phone is in the initial mode, and the passive frame 302 is rotated to the rear side of the phone main body 4 to serve as a simple support, since the active frame 301 is located at the beginning of the stroke, the two anti-falling legs 2 corresponding to the passive frame 302 are still kept at the beginning of the stroke under the action of the check claws 21 and the check grooves 23, and do not extend to the outside of the phone main body 4, so as to ensure that the shape of the smart phone conforms to the aesthetic taste of the public under this state; when the smart phone is switched from the initial mode to the anti-falling mode, the active frame 301 and the passive frame 302 rotate from the respective stroke starting ends to the stroke ending ends, the two support shafts 1 pull the two anti-falling claws 21 to be separated from the two anti-falling grooves 23 through the pull wires 22, and then the locking effect on the corresponding anti-falling legs 2 is released, so that the two anti-falling legs 2 corresponding to the passive frame 302 can be ensured to be moved to the stroke ending ends.

Example 4

Referring to fig. 12 and 16, in the implementation of the smart phone disclosed in example 2, it is mentioned that, in the initial mode of the smart phone, the passive frame 302 may provide a certain positioning function by the falling-prevention foot 2, so as to ensure that the passive frame 302 does not automatically separate from the beginning of the stroke, and an improved structure for improving the positioning effect based on the matching relationship between the falling-prevention foot 2 and the passive frame 302 is also disclosed. For example, because the falling-prevention leg 2 provides a certain positioning function when the passive frame 302 is located at the beginning of the stroke, when the smart phone is switched from the initial mode to the falling-prevention mode, a larger driving force needs to be provided for the passive frame 302 to overcome the positioning function, so that the requirement on the elasticity of the elastic component is obviously improved, meanwhile, the requirements on the strength of the support shaft 1, the active frame 301, the passive frame 302, the mobile phone main body 4, the locking mechanism 7 and other related components are also improved, and the performance is generally improved by increasing the size of the components, so that the components are not small and compact any more; in addition, this smart mobile phone prevents falling the function and design based on circulated use, can manually restore to initial mode under preventing falling the mode, after improving back shaft 1 department elastomeric element elasticity for smart mobile phone is no longer simple and convenient by preventing falling the manual operation that the mode was restored to initial mode. Therefore, the present embodiment is further improved on the basis of the structure of the smart phone disclosed in embodiment 2, so as to overcome the above-mentioned disadvantages. The adopted specific scheme is as follows:

referring to fig. 20 and 21, a positioning mechanism is disposed between the passive frame 302 and the mobile phone main body 4, the positioning mechanism is composed of a magnetic sheet 25 fixed to the passive frame 302, an iron sheet 24 fixed to the mobile phone main body 4, and a micro-electromagnet 26 located in the mobile phone main body 4 and used for magnetizing the iron sheet 24, and the power-on state of the micro-electromagnet 26 is controlled by the main processor; in an initial mode, when the micro-electromagnet 26 is in a non-energized state, the magnetic sheet 25 and the iron sheet 24 are closely adsorbed to position the passive frame 302 at the beginning of the stroke, and when and only when the main processor monitors that the mobile phone main body 4 falls in a free-fall motion and the falling duration T2 is equal to T1, the micro-electromagnet 26 is energized for a short time, and at that time, the micro-electromagnet 26 generates a magnetic field instantly to drive the magnetic sheet 25 to be separated from the iron sheet 24, namely, the passive frame 302 is driven to rotate towards the end of the stroke; when the micro-electromagnet 26 is in a non-energized state, the passive frame 302 can be manually driven to break away the attraction between the magnetic sheet 25 and the iron sheet 24 and rotate backwards, and the micro-electromagnet can be used as a simple bracket;

after the smart phone adopts the structure, the smart phone is in an initial mode in the normal use process, the micro electromagnet 26 is in an unpowered state, and the positioning mechanism can provide proper positioning force for the passive frame 302, so that the passive frame 302 is prevented from automatically separating from the stroke starting end; when the smartphone is switched from the initial mode to the anti-falling mode, the micro-electromagnet 26 is in the power-on state, and at this time, the positioning mechanism does not prevent the passive frame 302 from rotating to the stroke end, but applies a certain assistance force to enable the passive frame 302 to rotate to the stroke end more quickly, so that the driving force required to be provided for the passive frame 302 when the initial mode is switched to the anti-falling mode is reduced, and the technical problem to be solved in the embodiment is solved.

Claims

1. A smart phone includes a phone body; the cell-phone main part front side is the screen, and inside is equipped with host processor, by the vibrations subassembly that motor and eccentric block constitute, its characterized in that:

the mobile phone body is internally provided with a locking mechanism, the locking mechanism comprises a slide block which is limited by a track and has a linear moving stroke, and a reset spring which drives the slide block to reset to the stroke starting end, a locking pin and a deflector rod are fixed on the slide block, the outer end of the locking pin is a spherical end, and a positioning pit is arranged on the inner side wall of the anti-falling frame; when the sliding block is positioned at the stroke starting end, the spherical end extends out of the mobile phone main body and is matched with the positioning pit to lock the anti-falling frame at the stroke starting end, and when the sliding block is positioned at the stroke terminal end, the spherical end cannot be matched with the positioning pit to unlock the anti-falling frame; the output shaft of the motor is provided with a cam matched with the ratchet mechanism, so that the output shaft of the motor can drive the cam to synchronously rotate forwards along with the cam only when rotating forwards; in the process that the cam rotates forwards for one circle, the deflector rod is pushed by the outer edge to move so as to drive the sliding block to move to the stroke end, and then the protruding part of the cam is separated from the deflector rod;

a gravity acceleration sensor is arranged in the mobile phone main body, the main processor can monitor the free falling state of the mobile phone main body by means of the gravity acceleration sensor, a time threshold value T1 is preset in the main processor, and if and only if the main processor monitors that the mobile phone main body falls in the free falling body movement and the falling duration time T2 is equal to T1, the output shaft of the motor rotates forwards and rotates at least one circle; when the vibration component provides a vibration effect for the smart phone, the output shaft of the motor rotates reversely; after the main processor stops the motor, the position of the cam does not prevent the slide block from resetting to the stroke starting end;

the two support shafts are respectively positioned in the middle of the upper end and the middle of the lower end of the mobile phone main body; the anti-falling frame is composed of an active frame and a passive frame which are symmetrical in shape and are all arc-shaped, two ends of the active frame and two ends of the passive frame are supported by two supporting shafts, so that the active frame and the passive frame respectively have a rotation stroke, the locking mechanism and the elastic components at the two supporting shafts only act on the active frame, and a one-way synchronization mechanism is arranged between the active frame and the passive frame; when the smart phone is in an initial mode, the active frame and the passive frame are positioned at the respective stroke starting ends and respectively constrain two adjacent anti-falling feet at the stroke starting ends; when the locking mechanism unlocks the active frame, the active frame drives the passive frame and the passive frame to rotate together to respective stroke terminals through the one-way synchronization mechanism, and the active frame and the passive frame are respectively positioned on the front side and the rear side of the mobile phone main body; in the initial mode, the passive frame can be manually rotated to the rear side of the mobile phone main body, and the unidirectional synchronous mechanism cannot drive the active frame to rotate in the process; the mobile phone body can be supported by the passive frame at the rear side and the falling-proof feet extending from two corners and can be transversely and obliquely placed on the desktop.

2. A smart phone as claimed in claim 1, wherein: the placing seat is in a drawer shape and is provided with a notch, and the notch is positioned on the side wall of the corner of the mobile phone main body; the anti-falling foot consists of a leg part and a foot part which are fixedly connected, the leg part is limited in the arranging seat and can slide without being separated from the arranging seat, and therefore the anti-falling foot can slide in a linear moving stroke; the inner end of the leg part is provided with an inner cavity, an elastic component for driving the anti-falling foot to move towards the stroke terminal is arranged between the inner cavity and the bottom of the placing seat, and the elastic component is a spring or an elastic sheet; when the falling-preventing foot is positioned at the initial stroke end, the leg part is completely positioned in the placing seat, the inner end of the leg part is contacted with the bottom of the placing seat, the elastic part is in a compressed state and is contained in the inner cavity of the leg part, and the foot part seals the notch; when the smart phone is in an initial mode, the foot part is located on the inner side of the anti-falling frame and cannot move.

3. A smart phone as claimed in claim 1, wherein: one of the cam and the output shaft is provided with a circle of ratchets, the other is provided with a pawl matched with the ratchets, and the output shaft can realize the unidirectional driving of the cam under the matching of the ratchets and the pawl.

4. A smart phone as claimed in claim 1, wherein: the anti-falling frame is made of polymer composite materials.

5. A smart phone as claimed in claim 1, wherein: the anti-falling foot is made of polymer composite materials.

6. A smart phone as claimed in claim 1, wherein: the one-way synchronizing mechanism consists of an arc-shaped groove and a convex column which are in sliding fit, the arc-shaped groove and the convex column are respectively arranged on two opposite surfaces at the hinged position of the driving frame and the driven frame, and the central axes of the arc-shaped groove and the supporting shaft are superposed; under the initial mode, when the initiative frame is rotatory to stroke terminal by the stroke top, the tip of projection and arc wall is supported and is pushed against and guarantee passive frame along with initiative frame synchronous revolution, and when manual rotatory passive frame, the projection slides in the arc wall and makes passive frame can not order about the initiative frame rotatory.

7. A smart phone as claimed in claim 1, wherein: two positioning grooves are formed in the inner side of the passive frame, and spherical positioning protrusions are arranged on two anti-falling feet corresponding to the passive frame respectively; when the passive frame and the two corresponding falling-proof feet are both positioned at the initial end positions, the two falling-proof feet prop against the inner side of the passive frame and are bound in the row Cheng Shiduan, and the two positioning bulges just fall into the two positioning grooves, so that the passive frame is limited at the stroke initial end.

8. A smart phone as claimed in claim 1, wherein: the mobile phone main body is internally provided with a non-return claw at the inner part of each of the two placing seats corresponding to the passive frame, and the two corresponding anti-falling feet are respectively provided with a non-return groove; the two anti-stopping claws are respectively connected with the adjacent supporting shafts through a pull wire, and the two supporting shafts and the driving frame cannot rotate relatively; when the driving frame is at the initial position, the stay wire does not pull the non-return claw, and after the anti-falling foot moves to the stroke initial end, the non-return claw automatically falls into the non-return groove so as to prevent the anti-falling foot from moving towards the stroke terminal direction; when the driving frame rotates from the stroke starting end to the stroke terminal end, the non-return claws are pulled by the pull wires and cannot be matched with the non-return grooves, and the two non-return claws do not hinder the movement of the two corresponding anti-falling feet any more.

9. A smart phone as claimed in claim 1, wherein: a positioning mechanism is arranged between the passive frame and the mobile phone main body, the positioning mechanism consists of a magnetic sheet fixed on the passive frame, an iron sheet fixed on the mobile phone main body and a micro electromagnet positioned in the mobile phone main body and used for magnetizing the iron sheet, and the electrifying state of the micro electromagnet is controlled by the main processor; in an initial mode, when the micro electromagnet is in a non-electrified state, the magnetic sheet and the iron sheet are closely adsorbed to position the passive frame at the initial end of the stroke, and when and only when the main processor monitors that the mobile phone main body falls down in a free-falling body motion and the falling duration time T2 is equal to T1, the micro electromagnet is electrified for a short time, and then the micro electromagnet generates a magnetic field instantly to drive the magnetic sheet to be separated from the iron sheet, namely the passive frame is driven to rotate towards the terminal end of the stroke; when the micro electromagnet is in a non-electrified state, the driven frame can be manually driven to break away the attraction between the magnetic sheet and the iron sheet and rotate backwards.