CN110750045A

CN110750045A - Wearable device

Info

Publication number: CN110750045A
Application number: CN201910949355.8A
Authority: CN
Inventors: 阳雪荣
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-02-04
Anticipated expiration: 2039-10-08
Also published as: CN110750045B

Abstract

The invention discloses wearable equipment, which comprises a shell, a driven module and a driving device, wherein the shell is provided with a first connecting part and a second connecting part; the shell is provided with an inner cavity and an opening communicated with the inner cavity, and the opening is positioned on the side part of the shell; the driving device is arranged in the inner cavity; the driving device comprises a reset mechanism, a driving mechanism and a cam which is rotationally arranged; the driven module is positioned on one side of the cam and is connected with the reset mechanism; the driving mechanism is in transmission connection with the cam and can drive the cam to rotate through the driving mechanism; when the convex part of the cam moves to a first state of being in contact with the driven module, the convex part of the cam pushes the driven module to extend out of the shell through the opening; when the convex part of the cam moves to a second state separated from the driven module, the driven module retracts into the shell under the driving of the reset mechanism. Above-mentioned scheme can solve present wearable equipment because of arrange the camera beside the display screen and influence the screen of wearable equipment and account for the problem of comparing.

Description

Wearable device

Technical Field

The invention relates to the technical field of electronic products, in particular to wearable equipment.

Background

With the rapid development of science and technology, more and more new science and technology products, particularly wearable equipment, appear in recent years, and are favored by consumers.

Wearable devices have a wide variety of functions; taking the smart watch as an example, the most popular is to add the design of camera on the smart watch, thereby making the wearer both can shoot, make a video recording etc. operation through setting up in the camera of smart watch, can be used for video conversation again.

The layout positions of the cameras on the intelligent watch are various; wherein, the most common overall arrangement position is arranged the camera beside the intelligent wrist-watch display screen for camera and display screen are fixed side by side, and the wearer can be used for corresponding operations such as shooing, video recording and video conversation through the camera.

Therefore, the design of the camera on the wearable device brings great convenience to the wearer; however, due to the requirements of the market on the wearable device such as light volume and extremely-changed appearance, the display surface of the whole wearable device is increased by directly arranging and fixing the cameras beside the display screen of the wearable device, and the display screen only occupies a part of the area of the display surface, so that the screen occupation ratio is reduced greatly, and the development requirement of the wearable device is difficult to meet.

Disclosure of Invention

The invention discloses wearable equipment, which aims to solve the problem that screen occupation ratio of the wearable equipment is influenced because the camera layout of the conventional wearable equipment is fixedly arranged beside a display screen.

In order to solve the problems, the invention adopts the following technical scheme:

a wearable device comprises a shell, a driven module and a driving device; the shell is provided with an inner cavity and an opening communicated with the inner cavity, and the opening is positioned on the side part of the shell; the driving device is arranged in the inner cavity;

the driving device comprises a reset mechanism, a driving mechanism and a cam which is rotatably arranged; the driven module is positioned on one side of the cam and is connected with the reset mechanism; the driving mechanism is in transmission connection with the cam and drives the cam to rotate; the cam has a first state of being in contact with the driven module and a second state of being separated from the driven module;

under the condition that the cam is in the first state, a convex part of the cam is in contact with the driven module, and the driven module at least partially extends out of the shell through the opening;

under the condition that the cam is in the second state, the convex part of the cam is separated from the driven module, and the driven module retracts into the shell under the driving of the reset mechanism.

The technical scheme adopted by the invention can achieve the following beneficial effects:

the wearable equipment disclosed by the invention improves the layout setting mode of the driven module of the existing wearable equipment; the cam can be driven to rotate through the driving mechanism, so that the convex part of the cam moves to a first state of being in contact with the driven module, and the driven module is pushed by the convex part of the cam to extend out of the shell from the opening on the side part of the shell, so that the driven module can conveniently perform corresponding work; after the driven module completes corresponding work, the cam is driven to rotate through the driving mechanism, so that the convex part of the cam moves to a second state separated from the driven module, and the driven module is driven to retract into the shell through the action of the reset mechanism, the driven module is hidden, and the driven module is prevented from occupying the area of the display surface of the wearable equipment; therefore, compared with the mode that the camera layout of the existing wearable device is fixedly arranged beside the display screen, the wearable device disclosed by the invention avoids the influence of the area occupied by the driven module on the screen occupation ratio of the wearable device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an exploded view of a first driving device of a wearable device according to an embodiment of the present invention;

fig. 2 is a structural diagram illustrating a state in which the driven module of the wearable device shown in fig. 1 is extended out of the housing;

fig. 3 is a structural diagram illustrating a state in which the driven module of the wearable device shown in fig. 1 is retracted into the housing;

fig. 4 is an exploded view of a second driving device of the wearable device according to the embodiment of the present invention;

fig. 5 is a structural diagram illustrating a state that the driven module of the wearable device shown in fig. 4 is extended out of the housing;

FIG. 6 is a structural diagram illustrating a state in which the driven module of the wearable device shown in FIG. 4 is retracted into the housing;

fig. 7 is a schematic view of a matching state of the arc-shaped limiting sliding groove and the sliding block disclosed by the embodiment of the invention.

Description of reference numerals:

100-shell, 110-first guide perforation, 120-mounting seat, 130-watchband, 140-rotary disc, 141-slide block, 150-arc limit chute,

200-driven module, 210-top rod,

300-a reset mechanism,

400-cam, 410-shaft, 420-lug, 430-joint,

500-sliding key.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 7, an embodiment of the invention discloses a wearable device, which includes a housing 100, a driven module 200, and a driving apparatus.

The shell 100 serves as a base member of the wearable device and provides a bearing base for arrangement of various components of the wearable device; the housing 100 has an inner cavity, so that the driven module 200, the driving device, and the circuit board of the wearable device can be accommodated in the inner cavity.

Meanwhile, the shell 100 is provided with an opening communicated with the inner cavity, and the opening is positioned at the side part of the shell 100; the driving device is disposed in the inner cavity, so that the driven module 200 can be driven by the driving device to extend out of the housing 100 or retract into the housing 100 through the opening on the side of the housing 100.

The driving device disclosed by the embodiment of the invention comprises a reset mechanism 300, a driving mechanism and a cam 400 which is arranged in a rotating way; the cam 400 may be rotatably disposed on an inner wall of the housing 100 by a rotating shaft 410, a pin, or the like.

The driving mechanism is used as a power source for the rotation of the cam 400, and is in transmission connection with the cam 400, so that the cam 400 can be driven to rotate through the driving mechanism; moreover, the driven module 200 is positioned at one side of the cam 400, so that the driven module 200 can be in jacking fit with the convex part 420 of the cam 400; when the cam 400 rotates to a first state that the convex part 420 of the cam 400 is in contact with the driven module 200, the convex part 420 of the cam 400 pushes the driven module 200 to move in an extending manner, so that the driven module 200 can at least partially extend out of the housing 100 through the opening, and further, corresponding functional work can be completed through the driven module 200.

The reset mechanism 300 is used as a power source for retracting the driven module 200 into the housing 100, and the reset mechanism 300 is connected with the driven module 200, so that when the cam 400 rotates to a second state that the convex part 420 of the cam 400 is separated from the driven module 200, the driven module 200 can perform retraction movement under the driving of the reset mechanism 300, so that the driven module 200 is reset and retracted into the housing 100, and the hiding of the driven module 200 is further realized.

Therefore, compared with the mode that the layout of the camera is fixedly arranged beside the display screen by the conventional wearable device, the wearable device disclosed by the embodiment of the invention improves the layout arrangement mode of the driven module 200; the cam 400 is driven to rotate by the driving mechanism, so that the cam 400 rotates to the first state, and the driven module 200 is pushed by the convex part 420 to extend out of the housing 100 from the opening on the side part of the housing 100, so that the driven module 200 can conveniently perform corresponding work; after the driven module 200 completes the corresponding work, the driving mechanism drives the cam 400 to rotate, so that the cam 400 rotates to the second state, the driven module 200 retracts into the housing 100 under the driving of the reset mechanism 300, the driven module 200 is hidden, and the influence of the driven module 200 on the screen occupation of the wearable device is avoided.

In the wearable device disclosed in the embodiment of the present invention, the driving mechanism serves as a power source for driving the cam 400 to rotate, and the driving mechanism may have various setting modes and structures.

Fig. 1 shows a first drive mechanism disclosed in an embodiment of the present invention; the first disclosed driving mechanism includes a slide key 500 and a joint member 430; the housing 100 is provided with a first guiding through hole 110, and the sliding key 500 is at least partially disposed outside the housing 100, so that a user can operate and push the sliding key 500 to slide outside the housing; one end of the coupling member 430 is coupled to the cam 400, and the other end of the coupling member 430 is coupled to the sliding key 500, and the sliding key 500 can slide along the first guide penetration 110 and drive the rotation of the cam 400.

Based on the first driving mechanism, the sliding key 500 is pushed to reciprocate along the first guiding through hole 110, and then the counterclockwise rotation or the clockwise rotation of the cam 400 can be controlled accordingly, so that the convex part 420 of the cam 400 moves to the first state of contacting with the driven module 200 or the second state of separating from the driven module 200. Wherein, the sliding key 500 can be provided with anti-slip stripes, so that in the process that the user pushes the sliding key 500, the friction force between the finger and the sliding key 500 can be increased through the anti-slip stripes, and the pushing operation of the sliding key 500 is facilitated.

Specifically, as shown in fig. 3, the sliding key 500 is pushed to move along the first guide through hole 110 away from the initial position, so that the sliding key 500 drives the cam 400 to rotate counterclockwise through the engaging member 430, and the protrusion 420 of the cam 400 moves to the first state of contacting with the driven module 200 and pushes the driven module 200 to extend out of the housing 100. As shown in fig. 2, the sliding key 500 is pushed to move along the first guide through hole 110 and return to the initial position, so that the sliding key 500 drives the cam 400 to rotate clockwise through the engaging member 430, and the convex portion 420 of the cam 400 moves to the second state separated from the driven module 200, so that the driven module 200 can be reset to move and retract into the housing 100 under the driving of the reset mechanism 300.

In the case that the housing 100 is a circular housing or a housing having a circular arc section at a side thereof, the first guide through-hole 110 may be a circular arc-shaped guide through-hole. For example, when the casing 100 is a circular casing or a casing having a circular arc section at a side thereof, the first guide through hole 110 is disposed at the side of the circular casing and is a circular arc guide through hole extending along a circumferential direction of the circular casing, or the first guide through hole 110 is disposed at the circular arc section at the side of the casing and is a circular arc guide through hole extending along the circular arc section; the connecting member 430 may be a connecting rod structure, or an elastic member structure such as a spring or a telescopic shaft, so that the sliding key 500 can smoothly slide along the first guide through hole 110 and can maintain a fitting state with the first guide through hole 110 in the whole moving process.

Of course, the first guide through hole 110 may also be an elliptical arc-shaped guide through hole or a strip-shaped guide through hole, so that the case 100 is an elliptical case or a case with straight edge sections on the sides; the linking member 430 is an elastic member structure such as a spring or a telescopic shaft, so that the linking member can be elastically deformed adaptively and adapted to a moving position of the sliding key 500 during the sliding key 500 moves back and forth along the elliptical arc-shaped guide through hole or the bar-shaped guide through hole of the side of the housing, so that the sliding key 500 can smoothly slide along the first guide through hole 110 and can maintain a fitting state with the first guide through hole 110 during the entire moving process.

It is easily understood that the first guide penetration hole 110 and the sliding key 500 may also be disposed at other positions of the housing 100, such as at the back of the housing 100; the embodiment of the present invention does not limit the specific shape of the first guide penetration hole 110 and the specific arrangement positions of the first guide penetration hole 110 and the sliding key 500.

As shown in fig. 4, a second driving mechanism disclosed in the embodiment of the present invention includes a turntable 140; the rotary disc 140 is rotatably connected with the housing 100, and the rotation axis of the rotary disc 140 is the same as the rotation axis of the cam 400, i.e. the rotation axis of the rotary disc 140 and the rotation axis of the cam 400 are located on the same straight line; the cam 400 is fixedly coupled to the dial 140 so that the rotation of the cam 400 can be controlled by the rotational driving of the dial 140.

Based on the second driving mechanism, the cam 400 can be driven to rotate counterclockwise or clockwise by the counterclockwise rotation or clockwise rotation of the turntable 140, so that the convex portion 420 of the cam 400 moves to the first state contacting with the driven module 200 or moves to the second state separated from the driven module 200.

Specifically, as shown in fig. 6, the rotating disc 140 rotates counterclockwise and leaves the initial position, so that the rotating disc 140 drives the cam 400 to rotate counterclockwise, the convex portion of the cam 400 moves to the first state of contacting with the driven module 200 and pushes the driven module 200 to extend out of the housing 100. As shown in fig. 5, the rotating disc 140 rotates clockwise and returns to the initial position, so that the cam 400 is driven by the rotating disc 140 to rotate clockwise, and the convex portion 420 of the cam 400 moves to the second state separated from the driven module 200, so that the driven module 200 can be reset to move and retract into the housing 100 under the driving of the reset mechanism 300.

As shown in fig. 7, in order to limit the rotation position of the turntable 140, a circular arc-shaped limiting chute 150 may be provided in the housing 100, and the circular arc-shaped limiting chute 150 extends along the circumferential direction of the turntable 140; the rotating disc 140 is provided with a sliding block 141 capable of sliding along the arc-shaped limiting sliding groove 150, and the rotating position of the rotating disc 140 can be limited through the limiting matching of the sliding block 141 and the arc-shaped limiting sliding groove 150, so that the first state and the second state of the cam 400 can be conveniently controlled in a rotating manner, and the adjustment and control of the telescopic state of the driven module 200 by a user can be further facilitated.

For example, when the sliding block 141 moves to a position abutting against one end of the circular arc-shaped limiting sliding chute 150, corresponding to the first state that the cam 400 rotates to the contact between the convex part 420 of the cam 400 and the driven module 200, the driven module 200 at least partially extends out of the housing 100; when the sliding block 141 moves to a position abutting against the other end of the circular arc-shaped limiting sliding chute 150, the driven module 200 retracts into the housing 100 under the driving of the restoring mechanism 300 corresponding to the cam 400 rotating to a second state that the convex part 420 of the cam 400 is separated from the driven module 200.

It is easy to understand that, in the wearable device disclosed in the embodiment of the present invention, the driving mechanism may also be a driving motor, and an output end of the driving motor is in transmission connection with the cam 400, so that the rotation of the cam 400 is controlled by the rotation of the driving motor, and the rotation control of the first state and the second state of the cam 400 can also be realized.

In the wearable device disclosed in the embodiment of the present invention, the driven module 200 may include a functional device and a top bar 210 fixedly connected to the functional device; the inner cavity can be provided with a mounting seat 120, and the mounting seat 120 is provided with a second guide through hole extending along the telescopic direction of the driven module 200; the first end of the top rod 210 is connected with the functional device, and the second end of the top rod 210 passes through the second guide through hole and protrudes out of the mounting seat 120; with the cam 400 in the first state, the lobe 420 of the cam 400 is in contact with the second end of the pushrod 210; in the case where the cam 400 is in the second state, the protrusion 420 of the cam 400 is separated from the second end of the carrier rod 210.

Wherein, the second direction perforation through mount pad 120 can play spacing guide effect to the flexible removal of ejector pin 210, and then avoids the functional device to take place to be crooked at flexible removal in-process, is favorable to improving the flexible stability of removing of functional device. Of course, in order to ensure the stability of the telescopic movement of the functional device, a guide chute for limiting the telescopic movement of the push rod 210 may be disposed in the housing 100, so that the push rod can move along the guide chute.

In order that the convex portion 420 of the cam 400 may sufficiently interact with the second end of the push rod 210, the second end of the push rod 210 may be provided with a cylindrical end cap having a diameter larger than the aperture of the second guide penetration hole; therefore, the contact area between the push rod 210 and the convex part 420 of the cam 400 can be increased through the cylindrical end cap, and the push rod 210 can be pushed by the convex part 420; meanwhile, the cylindrical end cap and the mounting seat 120 can form a limiting mechanism to limit the telescopic stroke of the ejector rod 210, so that the functional device is prevented from excessively extending out of the opening of the shell 100. Of course, the end cap may have other shapes with a size larger than that of the second guide through hole, such as a regular shape or an irregular shape of a square, an oval, a triangle, a trapezoid, etc.; embodiments of the invention are not limited to a particular shape of the end cap.

In the wearable device disclosed in the embodiment of the present invention, the reset mechanism 300 may be an elastic member; one end of the elastic element is connected with the driven module 200, and the other end of the elastic element is connected with the mounting seat 120 or the shell 100; therefore, when the protrusion 420 of the cam 400 pushes the driven module 200 to extend, the elastic member can be elastically deformed to generate a restoring force, and when the protrusion 420 of the cam 400 leaves the driven module 200, the driven module 200 can be retracted into the housing 100 by the restoring force of the elastic member. The elastic member may be a spring, a spring plate, a telescopic shaft, or a gas spring, and the embodiment of the present invention does not limit the specific structure of the reset mechanism 300.

Specifically, in the case that the elastic member is a return spring, one end of the return spring is fixedly connected to the functional device, and the other end of the return spring is fixedly connected to the mounting base 120; preferably, the number of the return springs may be two, and the two return springs are respectively located at two sides of the top bar 210, so that the return springs arranged at two sides of the top bar 210 are beneficial to keeping the stress balance of the driven module 200 in the process of telescopic movement, and further the driven module 200 can stably telescopically move.

Of course, the return spring can also adopt other arrangement modes; for example, the number of the return spring is one, and the return spring is sleeved on the top rod 210, and one end of the return spring is fixed to the functional device, and the other end of the return spring is fixed to the end surface of the mounting base 120 facing the functional device; the embodiment of the invention does not limit the specific number and the specific arrangement mode of the return springs.

In the wearable device provided by the embodiment of the present invention, the number of the driven modules 200 may be one, or two or more; the number of the reset mechanisms 300 is the same as that of the driven modules 200, and each driven module 200 is connected with a corresponding reset mechanism 300; the side of the housing 100 is opened with the same number of openings as the driven modules 200.

When the cam 400 rotates to a first state that the convex part 420 of the cam 400 is in contact with the corresponding driven module 200, the convex part 420 of the cam 400 can push the corresponding driven module 200 to at least partially extend out of the housing 100; when the convex portion 420 of the cam 400 rotates away from the driven module 200, the driven module 200 may be driven to retract into the housing 100 by the corresponding reset mechanism 300.

Specifically, the number of the driven modules 200 is three, and the three driven modules 200 are sequentially arranged in the circumferential direction of the cam; the number of the reset mechanisms is the same as that of the driven modules 200, namely three, and each driven module 200 is connected with one reset mechanism; three openings are formed in the side of the housing 100, and each opening corresponds to one driven module 200, so that each driven module 200 at least partially extends out of the housing 100 or retracts into the housing 100 through the corresponding opening.

Wherein, the number of the cam 400 can be one, and the cam 400 has one convex part 420; the number of the driving mechanisms is one, and the driving mechanisms are in transmission connection with the cam 400; the driving mechanism drives the cam 400 to rotate, and the convex part 420 of the cam 400 can be sequentially and respectively contacted with or separated from the three driven modules 200; so that when the convex part 420 of the cam 400 moves to a position where it contacts one of the driven modules 200 during the rotation of the cam 400, the convex part 420 can push the driven module 200 to at least partially protrude out of the housing 100 from the corresponding opening; when the convex portion 420 of the cam 400 moves to a position separated from the driven module 200, the driven module 200 retracts into the housing 100 under the driving of the corresponding reset mechanism 300.

Of course, the cam 400 may have the same number of the protrusions 420 as the driven modules 200; for example, the cam 400 has three lobes 420, and each lobe 420 corresponds to one driven module 200; the driving mechanism drives the cam 400 to rotate, and enables the three convex parts 420 of the cam 400 to be simultaneously contacted with or separated from the corresponding driven module 200; therefore, when the three convex parts 420 of the cam 400 move to the positions contacting with the corresponding driven modules 200 simultaneously during the rotation of the cam 400, the three convex parts 420 simultaneously push the three driven modules 200 to extend out of the housing 100; when the three protrusions 420 of the cam 400 are simultaneously moved to the positions separated from the corresponding driven modules 200, the three driven modules 200 are simultaneously retracted into the housing 100 under the driving of the corresponding reset mechanisms 300.

It will be readily appreciated that in order to control the telescopic movement of each driven module 200 individually; the number of driving devices may also be the same as the number of driven modules 200. For example, the number of the driven modules 200 is three, and the number of the driving devices is three, so that each driving device can control a corresponding one of the driven modules 200 to extend out of the casing 100 or retract into the casing 100. The cams 400 of the three driving devices may be respectively and independently rotatably disposed in the inner cavity through three different rotating shafts, or may be coaxially and rotatably disposed in the inner cavity through one same rotating shaft.

The wearable device disclosed by the embodiment of the invention can be an intelligent watch, and the intelligent watch can be provided with a watchband 130 so as to be convenient for a user to wear; meanwhile, in the second driving mechanism disclosed in the embodiment of the present invention, the turntable 140 may be a dial rotatably disposed on the housing of the smart watch, or may be a middle frame rotatably disposed on the housing of the smart watch or a separately disposed turntable structure.

It is easy to understand that the wearable device disclosed by the embodiment of the present invention may also be a smart band, VR, AR, or the like; the functional devices can be devices such as a camera, a receiver and the like; the embodiment of the invention does not limit the specific kinds of structures of the functional device and the wearable equipment.

It should be noted that the functional device may at least partially protrude out of the housing 100 through the opening, or may fully protrude out of the housing 100 through the opening; however, the portion of the functional device protruding out of the housing 100 through the opening is required to ensure that the corresponding function of the functional device can be performed.

After the functional device retracts into the casing 100, the outer surface of the functional device may be flush with the outer surface of the opening at the side of the casing 100, or may be lower than the outer surface of the opening at the side of the casing 100, so as to form a recess at the opening; however, in order to ensure the aesthetic appearance of the wearable device, it is common that the outer surface of the functional device is flush with the outer surface of the opening at the side of the housing 100 after the functional device is retracted into the housing 100.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wearable device is characterized by comprising a shell (100), a driven module (200) and a driving device; the shell (100) is provided with an inner cavity and an opening communicated with the inner cavity, and the opening is positioned on the side part of the shell; the driving device is arranged in the inner cavity;

the driving device comprises a reset mechanism (300), a driving mechanism and a cam (400) which is arranged in a rotating way; the driven module (200) is positioned on one side of the cam (400) and is connected with the reset mechanism (300); the driving mechanism is in transmission connection with the cam (400) and drives the cam (400) to rotate; the cam (400) has a first state of being in contact with the driven module (200) and a second state of being separated from the driven module (200);

with the cam (400) in the first state, a convex part (420) of the cam (400) is in contact with the driven module (200), and the driven module (200) at least partially protrudes out of the housing (100) through the opening;

under the condition that the cam (400) is in the second state, the convex part (420) of the cam (400) is separated from the driven module (200), and the driven module (200) retracts into the shell (100) under the driving of the reset mechanism (300).

2. The wearable device of claim 1, wherein the drive mechanism comprises a sliding key (500) and an engagement member (430); the shell (100) is provided with a first guide perforation (110), the sliding key (500) is at least partially arranged outside the shell (100), one end of the connecting piece (430) is connected with the cam (400), the other end of the connecting piece (430) is connected with the sliding key (500), and the sliding key (500) can slide along the first guide perforation (110) and drive the cam (400) to rotate.

3. The wearable device of claim 1, wherein the drive mechanism comprises a dial (140); the rotating disc (140) is rotationally connected with the shell (100), and the rotating axis of the rotating disc (140) is the same as that of the cam (400); the cam (400) is fixedly connected with the rotating disc (140).

4. The wearable device according to claim 3, wherein the housing (100) is provided with a circular arc shaped limit chute (150), and the circular arc shaped limit chute (150) extends in the circumferential direction of the turntable (140); the rotary disc (140) is provided with a sliding block (141) and is in limit fit with the arc-shaped limit sliding groove (150) through the sliding block (141).

5. Wearable device according to any of claims 1-4, wherein the driven module (200) comprises a functional device and a push rod (210) fixedly connected to the functional device; the inner cavity is internally provided with an installation seat (120), the installation seat (120) is provided with a second guide through hole, the first end of the ejector rod (210) is connected with the functional device, and the second end of the ejector rod (210) penetrates through the second guide through hole and protrudes out of the installation seat (120);

with the cam (400) in the first state, a lobe (420) of the cam (400) is in contact with the second end of the pushrod (210);

with the cam (400) in the second state, the lobe (420) of the cam (400) is separated from the second end of the pushrod (210).

6. The wearable device according to claim 5, wherein the second end of the push rod (210) is provided with a cylindrical end cap having a diameter larger than the aperture of the second guiding bore.

7. A wearable device according to claim 5, characterized in that the reset mechanism (300) comprises an elastic member; one end of the elastic piece is connected with the functional device, and the other end of the elastic piece is connected with the mounting seat (120).

8. The wearable device according to claim 7, wherein the elastic member is a return spring, and the number of the return springs is two, and the return springs are respectively located on two sides of the push rod (210).

9. The wearable device according to claim 7, wherein the elastic member is a return spring, the return spring is sleeved on the ejector rod (210), one end of the return spring is fixed to the functional device, and the other end of the return spring is fixed to an end surface of the mounting base (120) facing the functional device.

10. Wearable device according to any of claims 1-4, wherein the number of driven modules (200) is at least one; the number of the resetting mechanisms (300) is the same as that of the driven modules (200), and each driven module (200) is connected with one resetting mechanism (300); the side of the shell (100) is provided with the same number of openings as the driven modules (200).