Auxiliary structure for protecting mobile terminal

Abstract

The utility model relates to the field of mobile terminal accessories, and discloses an auxiliary structure for protecting the mobile terminal, comprising a bottom plate, a fixing structure symmetrically fixedly connected to the lower end surface of a placing frame along a center line, transmission mechanisms are arranged at both ends of adjacent sides of the two fixing structures, and clamping structures are arranged at both ends of adjacent sides of the two transmission mechanisms, a supporting structure is fixedly connected to the middle part of the upper end surface of the bottom plate, a lifting structure is symmetrically arranged on the lower end surface of an inner cavity of the placing frame along the center line, a transmission structure is arranged on the lower end surface of the bottom plate, and a driving structure is fixedly connected to the middle part of the lower end surface of the bottom plate, and the relative position of the clamping structure is adjusted during use through the transmission mechanism on the fixed structure, and the thrust generated by a first spring damper in the fixed structure is transmitted during use, and the clamping structure on the transmission mechanism is clamped with the left and right ends of the mobile terminal through a limit frame during use, and the lateral collision force is buffered and stored through the extension and contraction of the spring damper and the rotation of the worm.

Description

Technical Field

[0001] The utility model relates to the field of mobile terminal accessories, in particular to an auxiliary structure for protecting a mobile terminal. Background Art

[0002] With the rapid development of integrated circuit technology, the mobile communication industry will move towards a true mobile information age. The processing power of mobile terminals has become powerful. Mobile terminals are changing from simple communication tools to comprehensive information processing platforms, which also adds a broader development space for mobile terminals. With the popularization of mobile terminal devices, various accessories applied to mobile terminal devices are also increasing. For many current mobile terminals, such as mobile phones and mobile terminals, these mobile terminal devices generally use touch screens. In order to protect the touch screen, users can choose to install a protective cover on the mobile terminal to protect the screen, especially for the current large-size screens.

[0003] However, the existing device has the following problems: the protective cover has a simple structure, and the vibration during collision is stored and buffered by rubber material, resulting in poor protection effect; at the same time, in order to facilitate the removal of the protective cover, the protective cover has poor stability and is easy to fall off when held, thereby causing damage to the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary structure for protecting a mobile terminal, so as to solve the problem in the above background technology that it is inconvenient to adjust the safety protection range according to different usage scenarios and usage requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary structure for protecting a mobile terminal, comprising a base plate, a placement frame fixedly connected to the base plate, two groups of fixed structures symmetrically arranged in the placement frame, a transmission mechanism arranged on one side of the fixed structure, and the transmission mechanism is connected to the fixed structure; a clamping structure is arranged on the other end of the transmission mechanism, and the clamping structure is used to clamp the side of the mobile terminal; a supporting structure is fixed on the base plate, and the supporting structure is used to place the mobile terminal; a lifting structure is arranged in the placement frame, and a transmission structure and a driving structure are arranged on the outer plate surface of the base plate, and the driving structure is driven and connected to the transmission structure, so that the transmission structure drives the lifting structure to move, and then the mobile terminal is restricted between the supporting structure and the lifting structure.

[0006] Optionally, the fixed structure includes: a slider, a fixing frame symmetrically fixedly connected along the center line of the lower end surface of the inner cavity of the placement frame, two sliding rods symmetrically fixedly connected along the center line of the inner cavities of the two fixing frames, first spring dampers are arranged on the outer sides of the two sliding rods, and a transmission mechanism is arranged on the outer surface of the sliding rod at the front and rear sides of the first spring damper; the slider is slidably connected to the sliding rod, and one slider is connected to each of the two ends of the first spring damper.

[0007] Optionally, the transmission mechanism includes sliders symmetrically slidably connected to the front and rear sides of the outer surface of the sliding rod; the front and rear ends of the first spring damper on the outside of the sliding rod are respectively fixedly connected to the two ends of the adjacent sides of the two sliders, and the end of the slider away from the placement frame is fixedly connected to the first transmission frame, the first transmission frame is rotatably connected to a rotating rod, and the other end of the rotating rod is rotatably connected to a clamping structure.

[0008] Optionally, the clamping structure includes a clamping plate, both ends of adjacent sides of the clamping plate are fixedly connected to a limiting frame, a calibration groove is fixedly connected to the middle of the right end surface of the inner cavity of the limiting frame on the right side, and the inner cavity of the calibration groove matches the inner cavity of the charging port of the mobile terminal; the clamping plate is rotationally connected to the worm gear.

[0009] Optionally, the supporting structure includes a telescopic sleeve symmetrically fixedly connected along the center line of the upper end surface of the base plate, the lower end surface of the inner cavity of the telescopic sleeve is fixedly connected to support the second spring damper, the upper end surface of the second spring damper is fixedly connected to a support column, the upper end surface of the support column is fixedly connected to the support plate, and the outer surface of the support column is slidably connected to the inner cavity of the telescopic sleeve.

[0010] Optionally, the lifting structure includes threaded rods symmetrically connected to rotate along the front and rear sides of the center line of the upper end surface of the base plate, and the lower end surface of the base plate is symmetrically connected to rotate along the center line. Two adjacent threaded rods are located on the left and right sides of the supporting structure, and a transmission structure is arranged between the two worm gears. The rotating shaft of the lower end surface of the threaded rod passes through the base plate and is fixedly connected to the worm gear, and the threaded rod is rotationally connected to the base plate.

[0011] Optionally, the transmission structure includes a second transmission frame symmetrically fixedly connected along the center line of the upper end surface of the bottom plate, a worm is rotatably connected to the inner cavity of the second transmission frame, the outer surface of the worm is symmetrically provided with two sections of threads in opposite directions, the threads on the outer surface of the worm are meshed with the worm wheel, the middle parts of the outer surfaces of the two worms are fixedly connected with transmission gears, the outer surfaces of the two transmission gears are transmission-connected with chains, the driving structure drives the transmission gears to drive the worm to rotate through the driving chain, and the rotation of the worm drives the worm wheel to drive the threaded rod to rotate;

[0012] It also includes a lifting plate, the threaded rod passes through the lifting plate and is threadedly connected to the lifting plate, and the threaded rod rotates to drive the lifting plate to move upward or downward, thereby restricting the mobile terminal between the lifting plate and the support plate.

[0013] Optionally, the driving structure includes a driving motor fixedly connected to the left side of the middle part of the lower end surface of the base plate, the output end of the driving motor is fixedly connected to a driving gear, the driving gear is located between the two transmission gears, the driving gear is engaged with the chain for transmission, and the driving gear includes a plurality of gear plates; one gear plate is used to drive one of the transmission gears to rotate, and another gear plate is used to drive another transmission gear to rotate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model controls and adjusts the transmission mechanism during use by placing the fixed structure in the inner cavity of the frame, so that the clamping structure is fitted with the left and right sides of the mobile terminal. The relative position of the clamping structure is adjusted during use by the transmission mechanism on the fixed structure, and the thrust generated by the first spring damper in the fixed structure is transmitted during use. The clamping structure on the transmission mechanism is clamped with the left and right ends of the mobile terminal through the limit frame during use, and the placement position of the mobile terminal is determined by the calibration groove, which plays a role in clamping and fixing the side ends of the device during use, so that when the device falls, the first spring damper is extended and retracted and the rotating rod is rotated, thereby buffering and storing the lateral collision force.

[0016] 2. The utility model places and supports the lower end of the device through the support structure on the upper end surface of the bottom plate during use, thereby preventing the device from being placed in the air and affecting the stability of use. The lifting structure on the upper end surface of the bottom plate is used to place and fix the upper end surface of the device during use, thereby preventing the device from falling off due to its own weight under the action of gravity when the device is held. The threaded rod on the lifting structure is driven by the transmission structure on the lower end surface of the bottom plate during use. At the same time, since the threaded part on the outer surface of the worm wheel is the same as the worm, the self-locking property of the device is achieved through the worm wheel and the worm, which is convenient for people to use. The driving structure in the middle of the lower end surface of the bottom plate is used to drive and adjust the transmission structure during use, and then the driving motor is used to avoid manual operation by people, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0019] Figure 3This is a schematic diagram of the installation structure of the clamping structure of the utility model;

[0020] Figure 4 It is a schematic diagram of a half-section three-dimensional structure of the utility model.

[0021] In the figure: 1-bottom plate, 2-placing frame, 3-fixed structure, 31-fixed frame, 32-slide rod, 33-spring damper, 4-transmission mechanism, 41-slider, 42-rotating rod, 43-first transmission frame, 5-clamping structure, 51-clamping plate, 52-limiting frame, 53-calibration groove, 6-supporting structure, 61-telescopic sleeve, 62-support spring damper, 63-support column, 64-support plate, 7-lifting structure, 71-worm gear, 72-threaded rod, 73-lifting plate, 8-transmission structure, 81-second transmission frame, 82-worm, 83-transmission gear, 84-chain, 9-driving structure, 91-driving motor, 92-driving gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution of an auxiliary structure for protecting a mobile terminal: it comprises a bottom plate 1, a placing frame 2 is fixedly connected to the bottom plate 1, two groups of fixing structures 3 are symmetrically arranged in the placing frame 2, a transmission mechanism 4 is arranged on one side of the fixing structure 3, and the transmission mechanism 4 is connected to the fixing structure 3; a clamping structure 5 is arranged on the other end of the transmission mechanism 4, and the clamping structure 5 is used to clamp the side of the mobile terminal, a supporting structure 6 is fixed on the bottom plate 1, and the supporting structure 6 is used to place the mobile terminal, a lifting structure 7 is arranged in the placing frame 2, and a transmission structure 8 and a driving structure 9 are arranged on the outer plate surface of the bottom plate 1, and the driving structure 9 is driven and connected to the transmission structure 8, so that the transmission structure 8 drives the lifting structure 7 to move, and then the mobile terminal is restricted between the supporting structure 6 and the lifting structure 7.

[0024] In this embodiment, the mobile terminal may be a tablet computer or other plate-shaped terminals, which is not limited in this application.

[0025] Furthermore, the fixed structure 3 includes: a slider 41, a fixed frame 31 symmetrically fixedly connected along the center line of the lower end surface of the inner cavity of the placement frame 2, two inner cavities of the fixed frames 31 are symmetrically fixedly connected with slide bars 32 along the center line, first spring dampers 33 are arranged on the outer sides of the two slide bars 32, and a transmission mechanism 4 is arranged on the outer surface of the slide bar 32 on the front and rear sides of the first spring damper 33; the slider 41 is slidably connected to the slide bar 32, and one slider 41 is connected to each of the two ends of the first spring damper 33, so that the transmission mechanism 4 is controlled and adjusted during use through the fixed structure 3 of the inner cavity of the placement frame 2, so that the clamping structure 5 is fitted with the left and right sides of the mobile terminal, so that when the device falls, the first spring damper 33 is extended and retracted and the rotating rod 42 is rotated, so as to buffer the lateral collision force.

[0026] In this embodiment, the first spring damper 33 can be directly purchased. One end of the first spring damper 33 is connected to a slider, and the other end is connected to another slider. In this way, when the sliders move toward or away from each other, the first spring damper 33 can play a buffering role. Figure 2 As shown, the slide rod 32 passes through the slider 41, and the slider 41 can slide on the slide rod 32, and the slide rod 32 plays a guiding role in the sliding of the slider 41; the first spring damper 32 is arranged next to the slide rod 32, and the first spring damper 33 can play a buffering role when the two sliders slide towards or away from each other.

[0027] Furthermore, the transmission mechanism 4 includes sliders 41 symmetrically slidably connected to the front and rear sides of the outer surface of the slide bar 32; the front and rear end surfaces of the first spring damper 33 on the outer side of the slide bar 32 are respectively fixedly connected to the two ends of the adjacent side of the two sliders 41, and the end of the slider 41 away from the placement frame 2 is fixedly connected to the first transmission frame 43, the first transmission frame 43 is rotatably connected to the rotating rod 42, and the other end of the rotating rod 42 is rotatably connected to the clamping structure 5. Through the transmission structure 4 on the fixed structure 3, the relative position of the clamping structure 5 is adjusted during use, and the thrust generated by the first spring damper 33 in the fixed structure 3 is transmitted during use.

[0028] Furthermore, the clamping structure 5 includes a clamping plate 51 fixedly connected to the two ends of the adjacent side of the first transmission frame 43 away from one end of the placement frame 2, and the two ends of the adjacent side of the two clamping plates 51 are fixedly connected to the limiting frame 52. A calibration groove 53 is fixedly connected to the middle of the right end surface of the inner cavity of the limiting frame 52 on the right side. The inner cavity of the calibration groove 53 matches the inner cavity of the charging port of the mobile terminal. Through the clamping structure 5 on the transmission mechanism 4, the limiting frame 52 is clamped with the left and right ends of the mobile terminal during use, and the placement position of the mobile terminal is determined by the calibration groove 53, which plays a role in fixing the side end of the device during use.

[0029] Furthermore, the supporting structure 6 includes a telescopic sleeve 61 symmetrically fixedly connected along the center line of the upper end surface of the base plate 1, the lower end surface of the inner cavity of the telescopic sleeve 61 is fixedly connected to support the second spring damper 62, the upper end surface of the second spring damper 62 is fixedly connected to a support column 63, the upper end surface of the support column 63 is fixedly connected to a support plate 64, the outer surface of the support column 63 is slidably connected to the inner cavity of the telescopic sleeve 61, and the lower end of the equipment is placed and supported through the supporting structure 6 on the upper end surface of the base plate 1 during use, thereby avoiding the device being placed in the air and affecting the stability of use.

[0030] Furthermore, the lifting structure 7 includes threaded rods 72 symmetrically connected to the center line of the upper end surface of the base plate 1, and a worm gear 71 symmetrically connected to the lower end surface of the base plate 1 along the center line. The two adjacent threaded rods 72 are located on the left and right sides of the support structure 6. A transmission structure 8 is arranged between the two worm gears 71. The lower end surface of the threaded rod 72 has a rotating shaft that passes through the base plate 1 and is fixedly connected to the worm gear 71. The threaded rod (72) is rotatably connected to the base plate (1). The lifting structure 7 on the upper end surface of the base plate 1 can place and fix the upper end surface of the device during use, thereby preventing the device from falling off due to its own weight under the action of gravity when the device is held.

[0031] Further, the transmission structure 8 includes a second transmission frame 81 symmetrically fixedly connected along the center line of the upper end surface of the bottom plate 1, a worm 82 is rotatably connected to the inner cavity of the second transmission frame 81, the outer surface of the worm 82 is symmetrically provided with two sections of threads in opposite directions, the outer surface threads of the worm 82 are meshed with the worm wheel 71, and the middle parts of the outer surfaces of the two worms 82 are fixedly connected with a transmission gear 83, and the outer surfaces of the two transmission gears 83 are transmission-connected with a chain 84, and the driving structure 9 drives the transmission gear 83 to drive the worm 82 to rotate through the driving chain 84, and the rotation of the worm 82 drives the worm wheel 71 to drive The lifting plate 73 is also included, and the threaded rod 72 passes through the lifting plate 73 and is threadedly connected to the lifting plate 73. The threaded rod 72 rotates to drive the lifting plate 73 to move upward or downward, thereby restricting the mobile terminal between the lifting plate 73 and the support plate 64. The threaded rod 72 on the lifting structure 7 is driven by the transmission structure 8 on the lower end surface of the bottom plate 1 during use. At the same time, since the outer surface of the worm 82 has a threaded portion that is the same as the threaded portion of the worm, the self-locking property of the device is achieved through the worm wheel 71 and the worm, which is convenient for personnel to use.

[0032] Furthermore, the driving structure 9 includes a driving motor 91 fixedly connected to the left side of the middle part of the lower end surface of the base plate 1, and the output end of the driving motor 91 is fixedly connected to a driving gear 92, and the driving gear 92 is located between the two transmission gears 83. The outer surface of the driving gear 92 is transmission-connected to the chain 84, and the outer circle radius of the driving gear 92 is larger than the outer circle radius of the transmission gear 83. The driving structure 8 is driven and adjusted during use through the driving structure 9 in the middle part of the lower end surface of the base plate 1, and then through the driving motor 91, manual operation by personnel is avoided, thereby improving the working efficiency of the device.

[0033] It should be noted that in the present embodiment, the specifications of the four threaded rods used are exactly the same, and the two worm gears 82 and the turbine 71 have the same specifications; in this way, the stability of power transmission can be ensured. In the initial position, the plate surface of the lifting plate 73 is parallel to the plate surface of the support plate 64, and the driving structure 9 drives to rotate, driving the driving gear 92 to rotate. The rotation of the driving gear 92 simultaneously drives the two gear plates thereon to rotate. The two gear plates synchronously drive the two chains 84 to rotate, thereby driving the transmission gear 83 meshing with the chain 84 to rotate synchronously. Since the transmission gear 83 is coaxially fixedly connected with the worm gear 82, the two worm gears rotate synchronously, and the rotation of the two worm gears 82 drives the four worm wheels 71 to rotate synchronously. The synchronous rotation of the four worm wheels 71 can drive the threaded rod 72 to rotate synchronously. The threaded rod 72 is threadedly connected with the lifting plate 73 through an adaptive assembly. Through appropriate adaptive assembly, it can be ensured that when the four threaded rods rotate, the lifting plate is driven to move upward or downward.

[0034] Working principle: When working, the charging port of the mobile terminal is engaged with the calibration slot 53, and the mobile terminal is pushed at this time, so that the two side clamping plates 51 are separated from each other, so that the mobile terminal is placed in the inner cavity of the placement frame 2. At the same time, since the limiting frame 52 is fixed on the adjacent side of the clamping plate 51, the left and right ends of the mobile terminal are clamped, and the rotating rod 42 is further rotated, so the slider 41 slides relatively, and the first spring damper 33 is further extended and retracted, so that the clamping structure 5 is clamped and fixed with the left and right sides of the mobile terminal. When the mobile terminal is placed in the inner cavity of the placement frame 2, due to gravity, the height of the support plate 64 is reduced, so the support column 63 slides downward, so the support The second spring damper 62 is extended and retracted to support the mobile terminal to prevent it from being separated from the clamping structure 5 due to its own weight under the action of gravity. At this time, the driving structure 9 is started to rotate the output end of the driving motor 91, so the driving gear 92 rotates, thereby rotating the chain 84, so that the transmission gears 83 on both sides rotate, and further rotate the worm 82. At this time, since the outer surface thread of the worm 82 is meshed with the worm wheel 71, the worm wheel 71 rotates, and then the threaded rod 72 rotates, so that the lifting plate 73 is lifted and lowered, so the mobile terminal is limited and fixed when in use to prevent it from falling during use, and the mobile terminal can be easily taken out after use.

[0035] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An auxiliary structure for protecting a mobile terminal, comprising a bottom plate (1), characterized in that: A placement frame (2) is fixedly connected to the bottom plate (1), two groups of fixed structures (3) are symmetrically arranged in the placement frame (2), a transmission mechanism (4) is arranged on one side of the fixed structure (3), and the transmission mechanism (4) is connected to the fixed structure (3); a clamping structure (5) is arranged at the other end of the transmission mechanism (4), and the clamping structure (5) is used to clamp the side of the mobile terminal; a support structure (6) is fixed to the bottom plate (1), and the support structure (6) is used to place the mobile terminal; a lifting structure (7) is arranged in the placement frame (2), and a transmission structure (8) and a driving structure (9) are arranged on the outer plate surface of the bottom plate (1), and the driving structure (9) is driven and connected to the transmission structure (8), so that the transmission structure (8) drives the lifting structure (7) to move, and the mobile terminal is restricted between the support structure (6) and the lifting structure (7).

2. The auxiliary structure for protecting a mobile terminal according to claim 1, characterized in that: The fixing structure (3) comprises: a slider (41), a fixing frame (31) symmetrically fixedly connected along the center line of the lower end surface of the inner cavity of the placement frame (2), two sliders (32) symmetrically fixedly connected along the center line of the inner cavity of the two fixing frames (31), first spring dampers (33) are arranged on the outer sides of the two sliders (32), and a transmission mechanism (4) is arranged on the outer surface of the slider (32) at the front and rear sides of the first spring damper (33); the slider (41) is slidably connected to the slider (32), and one slider (41) is connected to each of the two ends of the first spring damper (33).

3. The auxiliary structure for protecting a mobile terminal according to claim 2, characterized in that: The transmission mechanism (4) comprises sliders (41) symmetrically slidably connected to the front and rear sides of the outer surface of the slide rod (32); the front and rear end surfaces of the first spring damper (33) outside the slide rod (32) are respectively fixedly connected to the two ends of the adjacent sides of the two sliders (41); one end of the slider (41) away from the placement frame (2) is fixedly connected to the first transmission frame (43); the first transmission frame (43) is rotatably connected to the rotating rod (42); the other end of the rotating rod (42) is rotatably connected to the clamping structure (5).

4. The auxiliary structure for protecting a mobile terminal according to claim 3, characterized in that: The clamping structure (5) comprises a clamping plate (51), both ends of one adjacent side of the clamping plate (51) are fixedly connected to a limiting frame (52), a calibration groove (53) is fixedly connected to the middle of the right end surface of the inner cavity of the limiting frame (52) on the right side, and the inner cavity of the calibration groove (53) matches the inner cavity of the mobile terminal charging port; the clamping plate (51) is rotatably connected to the rotating rod (42).

5. The auxiliary structure for protecting a mobile terminal according to claim 1, characterized in that: The support structure (6) comprises a telescopic sleeve (61) symmetrically fixedly connected along the center line of the upper end surface of the bottom plate (1); the lower end surface of the inner cavity of the telescopic sleeve (61) is fixedly connected to support the second spring damper (62); the upper end surface of the second spring damper (62) is fixedly connected to a support column (63); the upper end surface of the support column (63) is fixedly connected to a support plate (64); and the outer surface of the support column (63) is slidably connected to the inner cavity of the telescopic sleeve (61).

6. The auxiliary structure for protecting a mobile terminal according to claim 5, characterized in that: The lifting structure (7) comprises a threaded rod (72) symmetrically connected to rotate along the front and rear sides of the center line of the upper end surface of the bottom plate (1); the lower end surface of the bottom plate (1) is symmetrically connected to rotate along the center line; two adjacent threaded rods (72) are located on the left and right sides of the supporting structure (6); a transmission structure (8) is arranged between the two worm wheels (71); a rotating shaft of the lower end surface of the threaded rod (72) passes through the bottom plate (1) and is fixedly connected to the worm wheel (71); and the threaded rod (72) is rotationally connected to the bottom plate (1).

7. The auxiliary structure for protecting a mobile terminal according to claim 6, characterized in that: The transmission structure (8) comprises a second transmission frame (81) symmetrically fixedly connected along the center line of the upper end surface of the bottom plate (1); a worm (82) is rotatably connected to the inner cavity of the second transmission frame (81); the outer surface of the worm (82) is symmetrically provided with two sections of threads in opposite directions; the threads on the outer surface of the worm (82) are meshed with the worm wheel (71); the middle parts of the outer surfaces of the two worms (82) are fixedly connected with a transmission gear (83); the outer surfaces of the two transmission gears (83) are transmission-connected with a chain (84); the driving structure (9) drives the transmission gear (83) to drive the worm (82) to rotate through the driving chain (84); the worm (82) rotates to drive the worm wheel (71) to drive the threaded rod (72) to rotate; It also includes a lifting plate (73), the threaded rod (72) passes through the lifting plate (73) and is threadedly connected to the lifting plate (73), and the threaded rod (72) rotates to drive the lifting plate (73) to move upward or downward, thereby restricting the mobile terminal between the lifting plate (73) and the support plate (64).

8. The auxiliary structure for protecting a mobile terminal according to claim 7, characterized in that: The driving structure (9) comprises a driving motor (91) fixedly connected to the left side of the middle part of the lower end surface of the bottom plate (1); the output end of the driving motor (91) is fixedly connected to a driving gear (92); the driving gear (92) is located between the two transmission gears (83); the driving gear (92) is meshed with the chain (84) for transmission; the driving gear comprises a plurality of gear plates; one gear plate is used to drive one transmission gear (83) to rotate; and another gear plate is used to drive another transmission gear (83) to rotate.

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