Smart watch

Abstract

The invention relates to the technical field of wearable equipment, and discloses a smart watch, comprising: a dial comprising a display panel and a heart rate sensor; the two wrist straps are detachably installed at the two ends of the dial plate respectively through a connecting structure, the connecting structure comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected through an elastic piece, and when the first connecting part and the second connecting part are subjected to external force and move in the direction away from each other, the elastic piece is connected with the first connecting part and the second connecting part. The elastic piece extends and obtains elastic potential energy, and when the external force is removed or reduced, the elastic piece drives the first connecting part and the second connecting part to move in the direction close to each other through restoring force. Through the arrangement of the first connecting part, the second connecting part and the elastic piece, the wrist strap can be automatically adjusted according to the change of the wrist, the firmness of the wrist strap attached to the wrist is guaranteed, the discomfort of the wrist of a user can be avoided, and the adverse effect on the body health of the user is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wearable devices, and particularly to an intelligent watch. Background Art

[0002] As a wearable device, an intelligent watch integrates a variety of advanced sensors and Bluetooth communication technologies and has rich functions. In terms of health monitoring, it has functions such as step counting, distance measurement, calorie consumption calculation, and fat content estimation of an ordinary pedometer, and can provide basic exercise data for users. At the same time, it also has a sleep monitoring function. By using sensors to monitor the body activities and physiological indicators of users during sleep, it analyzes sleep quality, including sleep onset time, sleep duration, light and deep sleep cycles, etc., to help users understand their own sleep conditions. In addition, the intelligent watch also has a high-grade waterproof function, which can meet the wearing needs of users in scenarios such as handwashing and swimming in daily life; it uses Bluetooth 4.0 data transmission technology to achieve wireless connection with terminal devices such as smartphones, facilitating users to view and manage data in real time; it has a fatigue reminder function, which can timely remind users to rest according to data such as the exercise intensity and time of users; and a heart rate monitoring function, which can real-time monitor the heart rate changes of users through an optical sensor, providing an important basis for users' exercise and health management.

[0003] An intelligent watch includes a wristband and a watch face. The wristband is usually fixed on the wrist by means such as snap-fastener type, Velcro type, magnetic type, etc. These methods require users to manually adjust the tightness before wearing so that the wristband can fully fit the wrist to avoid the wristband shaking or displacing relative to the wrist. However, during users' exercise, a series of physiological changes will occur in the body. For example, the blood vessels in the wrist area will dilate due to the accelerated blood circulation during exercise, and the muscles may also expand or contract to a certain extent due to exercise. The wristband that is too close to the wrist skin will cause the blood vessels to be blocked from dilating, affecting the blood circulation of the arm, and then causing discomfort to users, such as pain, numbness, and a feeling of compression. In severe cases, it may have an adverse impact on the physical health of users. Summary of the Invention

[0004] In view of this, the present invention provides an intelligent watch to solve the problem that a conventional intelligent watch cannot adapt well to the user's exercise scenario, the wristband that is too close to the wrist will hinder blood vessel dilation, affect the blood circulation of the arm, cause discomfort to the user's wrist, and even have an adverse impact on the physical health of the user.

[0005] The present invention provides an intelligent watch, including:

[0006] A watch face, including a display panel and a heart rate sensor;

[0007] Wristbands, two wristbands are detachably mounted at both ends of the watch face through a connecting structure. The connecting structure includes a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are connected by an elastic member. When the first connecting portion and the second connecting portion are subjected to an external force and move away from each other, the elastic member elongates and obtains elastic potential energy. When the external force is withdrawn or reduced, the elastic member drives the first connecting portion and the second connecting portion to move towards each other through the restoring force.

[0008] Optionally, the first connecting portion is provided with a connecting groove extending along the length direction of the wristband, the second connecting portion is provided with a connecting rod, the connecting rod is adapted to extend into the connecting groove and slide along the depth direction of the connecting groove. The elastic member is a return spring, one end of the return spring is connected to the end of the connecting rod, and the other end is connected to the bottom of the connecting groove.

[0009] Optionally, first mounting grooves and second mounting grooves are respectively formed on the opposite wall surfaces of the first connecting portion and the second connecting portion. The connecting groove is arranged at the center of the bottom of the first mounting groove, and the connecting rod is arranged at the center of the bottom of the second mounting groove and partially extends into the connecting groove. Centered on the connecting groove and the connecting rod, two folding plates are symmetrically arranged in the thickness direction of the wristband. The folding plate includes a first plate body and a second plate body. One ends of the first plate body and the second plate body close to the connecting groove and the connecting rod are hinged together, and the other ends are respectively hinged to the inner walls of the first mounting groove and the second mounting groove.

[0010] Optionally, docking grooves are provided at opposite ends of the watch face. Card slots are provided on opposite inner walls of the docking groove. The end of the second connecting portion is adapted to extend into the docking groove, and a limiting hole corresponding to the card slot is provided at the end of the second connecting portion. A limiting post is movably arranged in the limiting hole through a limiting spring. The end of the limiting post is adapted to retract into the limiting hole under the action of an external force, or partially extend out of the limiting hole under the elastic force of the limiting spring. The part of the limiting post extending out of the limiting hole is adapted to be inserted into and rotatably cooperate with the card slot.

[0011] Optionally, the second connecting portion is provided with a sliding groove communicating with the limiting hole. The sliding groove extends along the length direction of the wristband from the middle of the limiting hole towards the direction away from the docking groove. A sliding hole is provided at the end of the sliding groove away from the limiting hole, and the sliding hole penetrates through the side wall of the second connecting portion. A sliding rod is arranged in the sliding groove. One end of the sliding rod is connected to the limiting post, and the other end is bent and extends into the sliding hole. The width dimension of the sliding groove is greater than the dimension of the limiting post extending out of the limiting hole.

[0012] Optionally, an annular rib is provided on the inner wall of the limiting hole, the limiting spring is arranged on the side of the annular rib away from the opening of the limiting hole, a convex edge is provided at an end of the limiting column that is partially matched with the limiting spring, and the convex edge is in limiting cooperation with the annular rib.

[0013] Optionally, the wristband is connected to the connection structure through a sliding part, the sliding part includes a sliding groove, a rotating roller and a belt, the sliding groove is opened on the side of the sliding part close to the wrist, multiple rotating rollers are arranged in parallel and at intervals in the sliding groove along the length direction of the wristband, the belt is wound around the multiple rotating rollers, and a part of the surface of the belt extends out of the sliding groove to form a contact surface.

[0014] Optionally, a plurality of jacks are arranged at intervals along the length direction on one of the two wristbands, and a plug matched with the jacks is arranged at the end of the other wristband.

[0015] Optionally, a pull ring is arranged on the surface of the other wristband opposite to the plug.

[0016] Optionally, a first toothed surface and a second toothed surface are respectively arranged on the surfaces of the two wristbands, and when the two wristbands surround the wrist, the first toothed surface and the second toothed surface are matched together.

[0017] Beneficial effects:

[0018] 1. The smart watch provided by the present invention includes:

[0019] A watch face, including a display panel and a heart rate sensor;

[0020] Wristbands, two wristbands are respectively detachably installed at both ends of the watch face through a connection structure, the connection structure includes a first connection part and a second connection part, the first connection part and the second connection part are connected by an elastic member, when the first connection part and the second connection part are subjected to an external force and move in a direction away from each other, the elastic member stretches and obtains elastic potential energy, and when the external force is withdrawn or reduced, the elastic member drives the first connection part and the second connection part to move in a direction close to each other through a restoring force.

[0021] When in use, the user can fix the watch face on the wrist through the wristband and adjust it to a suitable fit. The display panel of the watch face can display information, and the heart rate sensor can be used to detect the user's heart rate information. When the wrist expands due to physiological reasons such as exercise or emotional changes, the wristband receives the expansion force from the wrist skin, and the first connecting part and the second connecting part move in the direction away from each other, increasing the circumferential length of the wristband to adapt to the changes in the wrist part. While maintaining the fit, it will not overly compress the blood vessels and muscles of the wrist part, ensuring smooth blood circulation in the user's arm and avoiding discomfort in the user's wrist. After the user's wrist part returns to normal, the elastic member can drive the first connecting part and the second connecting part to move in the direction close to each other, reducing the circumferential length of the wristband to ensure fit with the wrist skin and avoid relative shaking or displacement of the wristband relative to the wrist. Thus, the wristband can automatically adjust to the changes in the wrist, ensuring both the reliability of the wristband fitting the wrist and avoiding discomfort in the user's wrist and adverse effects on the user's physical health.

[0022] 2. For the smart watch provided by the present invention, the first connecting part is provided with a connecting groove extending along the length direction of the wristband, and the second connecting part is provided with a connecting rod. The connecting rod is adapted to extend into the connecting groove and slide along the depth direction of the connecting groove. The elastic member is a return spring. One end of the return spring is connected to the end of the connecting rod, and the other end is connected to the bottom of the connecting groove. When the user's wrist part expands, the first connecting part and the second connecting part move in the direction away from each other, the connecting rod slides in the direction away from the connecting groove, and the end of the connecting rod drives the return spring to elongate, and the return spring obtains elastic potential energy. When the user's wrist returns to normal, the return spring drives the connecting rod to slide in the direction close to the connecting groove through the elastic force, and the first connecting part and the second connecting part move in the direction close to each other. The above structure is simple in composition and strong in reliability, and can adapt to the changes in the wrist part.

[0023] 3. For the smart watch provided by the present invention, the opposite wall surfaces of the first connecting part and the second connecting part are respectively provided with a first installation groove and a second installation groove. The connecting groove is arranged at the center of the bottom of the first installation groove, and the connecting rod is arranged at the center of the bottom of the second installation groove and partially extends into the connecting groove. Centered on the connecting groove and the connecting rod, two folding plates are symmetrically arranged in the thickness direction of the wristband. The folding plate includes a first plate body and a second plate body. One end of the first plate body and the second plate body close to the connecting groove and the connecting rod is hinged together, and the other ends are respectively hinged to the inner walls of the first installation groove and the second installation groove.

[0024] The first installation groove and the second installation groove can provide accommodation space for the two folding plates, enabling the two folding plates to be held between the first connecting portion and the second connecting portion in a folded state, without increasing the gap between the first connecting portion and the second connecting portion in the natural state. When an external force causes the first connecting portion and the second connecting portion to move away from each other, the folding plates change from the folded state to the unfolded state. Specifically, the ends of the first plate body and the second plate body that are hinged together rotate relative to each other, and the other ends of the first plate body and the second plate body rotate relative to the first installation groove and the second installation groove respectively, causing the other ends of the first plate body and the second plate body to move away from each other. The setting of the folding plates increases the reliability of the connection between the first connecting portion and the second connecting portion. At the same time, the ends of the first plate body and the second plate body close to the connecting groove and the connecting rod are hinged together, and the other ends are respectively hinged to the inner walls of the first installation groove and the second installation groove, enabling the symmetrically arranged two groups of first plate bodies and second plate bodies to make adaptive adjustments when the relative angle between the first connecting portion and the second connecting portion changes.

[0025] 4. For the smart watch provided by the present invention, docking grooves are provided at opposite ends of the watch dial. Card slots are provided on opposite inner walls of the docking grooves. The end of the second connecting portion is adapted to extend into the docking groove, and a limiting hole corresponding to the card slot is provided at the end of the second connecting portion. A limiting post is movably arranged in the limiting hole through a limiting spring. The end of the limiting post is adapted to retract into the limiting hole under the action of an external force, or partially extend out of the limiting hole under the elastic force of the limiting spring. The part of the limiting post extending out of the limiting hole is adapted to be inserted into and rotationally engaged with the card slot. The docking grooves on the watch dial can improve the compactness of the connection with the wristband. The limiting post extends out of the limiting hole under the abutting action of the limiting spring and is inserted and engaged with the card slot, which is convenient for disassembling or installing the wristband. Moreover, the limiting post and the card slot are rotationally engaged, so that the second connecting portion can be easily adapted to deflect a certain angle relative to the watch dial according to the contour of the wrist skin, thereby fitting the wrist skin.

[0026] 5. For the smart watch provided by the present invention, a sliding groove communicating with the limiting hole is provided in the second connecting portion. The sliding groove extends from the middle of the limiting hole in the length direction of the wristband towards the direction away from the docking groove. A sliding hole is provided at the end of the sliding groove away from the limiting hole, and the sliding hole penetrates through the side wall of the second connecting portion. A sliding rod is arranged in the sliding groove. One end of the sliding rod is connected to the limiting post, and the other end is bent and extends into the sliding hole. The width dimension of the sliding groove is larger than the dimension of the part of the limiting post extending out of the limiting hole. By pushing the other end of the sliding rod to slide relative to the sliding hole, the whole sliding rod can be driven to move in the width direction of the sliding groove, and then drive the limiting post to move towards the direction close to the limiting spring. Since the width dimension of the sliding groove is larger than the dimension of the part of the limiting post extending out of the limiting hole, the part of the limiting post extending out of the limiting hole leaves the card slot and completely retracts into the limiting hole, releasing the clamping engagement relationship, so as to facilitate removing the wristband from the watch dial.

[0027] 6. For the smart watch provided by the present invention, an annular rib is provided on the inner wall of the limit hole, the limit spring is arranged on the side of the annular rib away from the opening of the limit hole, a convex edge is provided at the end of the limit post that is partially matched with the limit spring, and the convex edge is in limit fit with the annular rib. Thus, the length of the limit post extending out of the limit hole can be limited, preventing the limit post from coming out of the limit hole.

[0028] 7. For the smart watch provided by the present invention, the wristband is connected to the connection structure through a sliding part. The sliding part includes a sliding groove, rotating rollers and a belt. The sliding groove is opened on the side of the sliding part close to the wrist. A plurality of the rotating rollers are arranged in parallel and at intervals along the length direction of the wristband in the sliding groove. The belt is wound around the plurality of rotating rollers, and a part of the surface of the belt extends out of the sliding groove to form a contact surface. The contact surface of the belt can be attached to the skin of the wrist. When the first connecting part and the second connecting part move away from or close to each other, the belt moves around the driving roller under the friction of the skin, reducing the resistance received when the first connecting part and the second connecting part move away from or close to each other, so as to better adapt to the changes in the wrist part for adaptive adjustment.

[0029] 8. For the smart watch provided by the present invention, a plurality of jacks are arranged at intervals along the length direction on one of the two wristbands, and a plug matched with the jacks is arranged at the end of the other wristband. The two wristbands can be fixed by using the plug, and the user can adjust the plug to insert into the corresponding jack according to the wrist size.

[0030] 9. For the smart watch provided by the present invention, a pull ring is arranged on the surface of the other wristband opposite to the plug. The user can drive the plug to leave the jack by pulling the pull ring, which is convenient for operation.

[0031] 10. For the smart watch provided by the present invention, a first tooth surface and a second tooth surface are respectively arranged on the surfaces of the two wristbands. When the two wristbands surround the wrist, the first tooth surface and the second tooth surface cooperate with each other. The first tooth surface and the second tooth surface can prevent relative sliding between the two wristbands after being fixed, improving the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1Schematic three-dimensional structure diagram of the smartwatch according to an embodiment of the present invention;

[0034] Figure 2 Another perspective three-dimensional structure diagram of the smartwatch according to an embodiment of the present invention;

[0035] Figure 3 Schematic cross-sectional structure diagram of the connection structure according to an embodiment of the present invention;

[0036] Figure 4 Another perspective cross-sectional structure diagram of the connection structure according to an embodiment of the present invention;

[0037] Figure 5 Schematic structure diagram of a wristband according to an embodiment of the present invention;

[0038] Figure 6 Schematic structure diagram of another wristband according to an embodiment of the present invention;

[0039] Figure 7 is Figure 6 Enlarged view of part A in

[0040] Figure 8 Schematic structure diagram of the pull ring according to an embodiment of the present invention;

[0041] Figure 9 is Figure 8 Enlarged view of part B in

[0042] Explanation of reference numerals:

[0043] 1, dial; 101, docking groove; 102, card slot; 11, display panel; 12, heart rate sensor; 13, Bluetooth;

[0044] 2, wristband;

[0045] 31, first connecting part; 32, second connecting part; 301, limiting hole; 302, limiting post; 303, limiting spring; 304, sliding groove; 305, sliding rod; 307, annular rib; 308, convex edge;

[0046] 402, elastic member; 403, connecting groove; 404, connecting rod;

[0047] 405, first plate body; 406, second plate body; 407, first rotating shaft; 408, second rotating shaft; 409, third rotating shaft;

[0048] 501, jack; 502, plug; 503, first toothed surface; 504, second toothed surface;

[0049] 601, sliding groove; 602, rotating roller; 603, belt;

[0050] 71. Pull ring; 72. Groove; 73. Fixed block; 74. Clamping part; 741. First clamping block; 742. Second clamping block. Detailed implementation

[0051] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, this embodiment provides a smart watch, including:

[0053] A watch face 1, including a display panel 11 and a heart rate sensor 12. The watch face 1 may have opposite first and second surfaces. The display panel 11 is disposed on the first surface, and the heart rate sensor 12 is disposed on the second surface. The heart rate sensor 12 can be attached to the user's wrist skin and detect the user's heart rate. For example, the heart rate sensor 12 can detect the user's heart rate by the photoelectric method. The watch face 1 may also be provided with Bluetooth 13 for communication connection with the user's mobile device.

[0054] Two wristbands 2 are respectively detachably mounted at both ends of the watch face 1 through a connection structure. The connection structure includes a first connection portion 31 and a second connection portion 32. The first connection portion 31 and the second connection portion 32 are connected by an elastic member 402. When the first connection portion 31 and the second connection portion 32 are subjected to an external force and move in a direction away from each other, the elastic member 402 elongates and obtains elastic potential energy. When the external force is withdrawn or reduced, the elastic member 402 drives the first connection portion 31 and the second connection portion 32 to move in a direction close to each other through the restoring force.

[0055] When in use, the user can fix the watch face 1 on the wrist through the wristband 2 and adjust it to a suitable fit. The display panel of the watch face 1 can display information, and the heart rate sensor can be used to detect the user's heart rate information. When the wrist expands due to physiological reasons such as exercise or emotional changes, the wristband 2 receives the expansion force from the wrist skin, and the first connecting portion 31 and the second connecting portion 32 move in a direction away from each other, increasing the circumferential length of the wristband 2 to adapt to the changes in the wrist part. While maintaining the fit, it will not overly compress the blood vessels and muscles of the wrist part, ensuring smooth blood circulation in the user's arm and avoiding discomfort in the user's wrist. After the user's wrist part returns to normal, the elastic member 402 can drive the first connecting portion 31 and the second connecting portion 32 to move in a direction close to each other, reducing the circumferential length of the wristband 2 to ensure a fit with the wrist skin and prevent the wristband 2 from shaking or displacing relative to the wrist. Thus, the wristband 2 can automatically adjust to the changes in the wrist, ensuring both the reliability of the wristband 2 fitting the wrist and avoiding discomfort in the user's wrist and adverse effects on the user's physical health.

[0056] For the specific composition structure and principle of the watch face 1 in this embodiment, reference can be made to the common watch faces in the prior art, and no examples will be given here.

[0057] As Figure 3 and Figure 4 As shown, in this embodiment, the first connecting portion 31 is provided with a connecting groove 403 extending along the length direction of the wristband 2, the second connecting portion 32 is provided with a connecting rod 404, and the connecting rod 404 is adapted to extend into the connecting groove 403 and slide along the depth direction of the connecting groove 403. The elastic member 402 is a return spring, one end of the return spring is connected to the end of the connecting rod 404, and the other end is connected to the bottom of the connecting groove 403. When the user's wrist part expands, the first connecting portion 31 and the second connecting portion 32 move in a direction away from each other, the connecting rod 404 slides in a direction away from the connecting groove 403, and the end of the connecting rod 404 drives the return spring to elongate, and the return spring obtains elastic potential energy. When the user's wrist returns to normal, the return spring drives the connecting rod 404 to slide in a direction close to the connecting groove 403 through the elastic force, and the first connecting portion 31 and the second connecting portion 32 move in a direction close to each other. The above structure is simple in composition and strong in reliability, and can adapt to the changes in the wrist part.

[0058] In this embodiment, the first connecting portion 31 and the second connecting portion 32 can be made of plastic material, and the wristband 2 can be a soft band made of rubber material.

[0059] In this embodiment, the first connecting portion 31 is connected to the wristband 2, and the second connecting portion 32 is detachably connected to the watch face 1.

[0060] AsFigure 3 and Figure 4 As shown in Figure 4 , in this embodiment, on the opposite wall surfaces of the first connecting portion 31 and the second connecting portion 32, a first mounting groove and a second mounting groove are respectively formed. The connecting groove 403 is disposed at the center of the bottom of the first mounting groove, and the connecting rod 404 is disposed at the center of the bottom of the second mounting groove and partially extends into the connecting groove 403. Centered on the connecting groove 403 and the connecting rod 404, two folding plates are symmetrically arranged in the thickness direction of the wristband 2. The folding plate includes a first plate body 405 and a second plate body 406. One ends of the first plate body 405 and the second plate body 406 close to the connecting groove 403 and the connecting rod 404 are hinged together, and the other ends are respectively hinged to the inner walls of the first mounting groove and the second mounting groove.

[0061] The first mounting groove and the second mounting groove can provide a receiving space for the two folding plates, so that the two folding plates are held between the first connecting portion 31 and the second connecting portion 32 in a folded state, and the gap between the first connecting portion 31 and the second connecting portion 32 in the natural state is not increased. When an external force causes the first connecting portion 31 and the second connecting portion 32 to move away from each other, the folding plates change from the folded state to the unfolded state. Specifically, the ends of the first plate body 405 and the second plate body 406 that are hinged together rotate relative to each other, and the other ends of the first plate body 405 and the second plate body 406 rotate relative to the first mounting groove and the second mounting groove respectively, causing the other ends of the first plate body 405 and the second plate body 406 to move away from each other. The arrangement of the folding plates increases the reliability of the connection between the first connecting portion 31 and the second connecting portion 32.

[0062] At the same time, one ends of the first plate body 405 and the second plate body 406 close to the connecting groove 403 and the connecting rod 404 are hinged together, and the other ends are respectively hinged to the inner walls of the first mounting groove and the second mounting groove. When the relative angle between the first connecting portion 31 and the second connecting portion 32 changes, the two sets of first plate bodies 405 and second plate bodies 406 arranged symmetrically can be adjusted adaptively. For example, due to the different wrist sizes of users, the fitting positions of the first connecting portion 31 and the second connecting portion 32 with different users' wrists are also different. In order to ensure that the first connecting portion 31 and the second connecting portion 32 are in contact with the user's wrist skin, when the user wears the wristband 2, the first connecting portion 31 and the second connecting portion 32 can deflect a certain angle in the direction of fitting the user's wrist skin. That is, the first connecting portion 31 deflects in the direction of approaching the user's wrist skin. At this time, the first plate body 405 and the second plate body 406 on the side close to the user's skin move closer to each other, and the first plate body 405 and the second plate body 406 on the side away from the user's skin move away from each other.

[0063] In this embodiment, the first plate body 405 and the second plate body 406 are hinged together through a first rotating shaft 407. The first plate body 405 is rotatably installed in the first installation groove through a second rotating shaft 408, and the second plate body 406 is rotatably installed in the second installation groove through a third rotating shaft 409.

[0064] As Figure 3 shown, in this embodiment, docking grooves 101 are provided at opposite ends of the dial 1. Card slots 102 are provided on opposite inner walls of the docking grooves 101. The end of the second connecting portion 32 is adapted to extend into the docking groove 101, and a limiting hole 301 corresponding to the card slot 102 is provided at the end of the second connecting portion 32. A limiting post 302 is movably arranged in the limiting hole 301 through a limiting spring 303. The end of the limiting post 302 is adapted to retract into the limiting hole 301 under the action of an external force, or partially extend out of the limiting hole 301 under the elastic force of the limiting spring 303. The portion of the limiting post 302 extending out of the limiting hole 301 is adapted to be inserted into and rotatably cooperate with the card slot 102. The docking groove 101 of the dial 1 can improve the compactness of the connection with the wristband 2. The limiting post 302 is inserted into and cooperates with the card slot 102 under the abutting action of the limiting spring 303, which is convenient for disassembling or installing the wristband 2. Moreover, the limiting post 302 and the card slot 102 are in rotational cooperation, so that the second connecting portion 32 can be adapted to deflect a certain angle relative to the dial 1 along the contour of the wrist skin, thereby fitting the wrist skin.

[0065] As Figure 3 shown, in this embodiment, a sliding groove 304 communicating with the limiting hole 301 is provided in the second connecting portion 32. The sliding groove 304 extends from the middle of the limiting hole 301 along the length direction of the wristband 2 towards the direction away from the docking groove 101. A sliding hole is provided at one end of the sliding groove 304 away from the limiting hole 301, and the sliding hole penetrates through the side wall of the second connecting portion 32. A sliding rod 305 is arranged in the sliding groove 304. One end of the sliding rod 305 is connected to the limiting post 302, and the other end is bent and extends into the sliding hole. The width dimension of the sliding groove 304 is larger than the dimension of the limiting post 302 extending out of the limiting hole 301. By pushing the other end of the sliding rod 305 to slide relative to the sliding hole, the whole sliding rod 305 can be driven to move along the width direction of the sliding groove 304, and then the limiting post 302 can be driven to move towards the direction close to the limiting spring 303. Since the width dimension of the sliding groove 304 is larger than the dimension of the limiting post 302 extending out of the limiting hole 301, the portion of the limiting post 302 extending out of the limiting hole 301 leaves the card slot 102 and completely retracts into the limiting hole 301, releasing the clamping fit relationship, so as to facilitate removing the wristband 2 from the dial 1.

[0066] In this embodiment, the cross-sectional shape of the sliding groove 304 can be L-shaped, the cross-sectional shape of the sliding rod 305 can be L-shaped, and the width dimension of the sliding rod 305 is smaller than the width dimension of the sliding groove 304.

[0067] As Figure 3 shown, in this embodiment, an annular convex rib 307 is provided on the inner wall of the limiting hole 301. The limiting spring 303 is arranged on the side of the annular convex rib 307 away from the opening of the limiting hole 301. A convex edge 308 is provided at an end of the limiting column 302 that is partially engaged with the limiting spring 303. The convex edge 308 is in limiting cooperation with the annular convex rib 307, and the convex edge 308 extends along the radial dimension of the end of the limiting column 302. Thus, the length of the limiting column 302 extending out of the limiting hole 301 can be limited, preventing the limiting column 302 from disengaging from the limiting hole 301.

[0068] As Figure 5 、 Figure 6 and Figure 7 shown, in this embodiment, the wristband 2 is connected to the connection structure through a sliding part. The sliding part includes a sliding groove 601, a rotating roller 602, and a belt 603. The sliding groove 601 is opened on the side of the sliding part close to the wrist. A plurality of the rotating rollers 602 are arranged in parallel and at intervals along the length direction of the wristband 2 in the sliding groove 601. The belt 603 is wound around the plurality of rotating rollers 602, and a surface part of the belt 603 extends out of the sliding groove 601 to form a contact surface. The contact surface of the belt 603 can be attached to the skin of the wrist. When the first connecting part 31 and the second connecting part 32 move away from or close to each other, the belt 603 moves around the rotating roller 602 under the friction of the skin, reducing the resistance when the first connecting part 31 and the second connecting part 32 move away from or close to each other, so as to better adapt to the changes in the wrist part for adaptive adjustment.

[0069] As Figure 2 and Figure 5 shown, in this embodiment, the sliding part is connected to the first connecting part 31, which can facilitate the movement of the first connecting part 31 relative to the skin of the user's wrist, so that the second connecting part 32 and the dial 1 remain in their original positions without the user having to adjust the position of the dial 1.

[0070] In this embodiment, the thickness of the first connecting part 31 is smaller than the thickness of the sliding part and also smaller than the thickness of the second connecting part 32. The first connecting part 31 has no contact with the wrist. Then, the friction between the second connecting part 32 and the skin of the wrist is relatively large, and the friction between the sliding part and the skin of the wrist is relatively small. The second connecting part 32 can fit the wrist and remain in its original position, and the sliding part can slide relative to the surface of the wrist, facilitating the adjustment of the overall enclosure size of the wristband 2.

[0071] As Figure 1 , Figure 2 , Figure 5 and Figure 6 show, on one of the two wristbands 2, a plurality of jacks 501 are arranged at intervals along the length direction, and a plug 502 that cooperates with the jacks 501 is arranged at the end of the other one. For example, two rows of jacks 501 are symmetrically arranged along the width direction of the wristband 2, and the interval between two adjacent jacks 501 in each row of jacks 501 is the same. Correspondingly, two plugs 502 are symmetrically arranged along the width direction of the other wristband 2. The two wristbands 2 can be fixed by using the plug 502, and the user can adjust the plug 502 to insert into the corresponding jack 501 according to the wrist size.

[0072] As Figure 5 and Figure 6 show, in this embodiment, the jack 501 includes a necking and an inner expanding groove. The necking is formed on the surface of the wristband 2, and the shape of the plug 502 corresponds to that of the jack 501, thereby ensuring the stability of the connection.

[0073] As Figure 8 and Figure 9 show, in this embodiment, a pull ring 71 is arranged on the surface of the other wristband 2 opposite to the plug 502. The user can drive the plug 502 to leave the jack 501 by pulling the pull ring 71, which is convenient for operation.

[0074] As Figure 8 and Figure 9 show, in this embodiment, a groove 72 is arranged on the surface of the other wristband 2 opposite to the plug 502. The pull ring 71 is installed in the groove 72 through a fixing block 73. A clamping portion 74 is arranged in the groove 72. The clamping portion 74 has a first clamping block 741 and a second clamping block 742, and a clamping groove is formed between the first clamping block 741 and the second clamping block 742. The free end of the pull ring 71 can be limited by the clamping groove of the clamping portion 74.

[0075] As Figure 1 , Figure 2 , Figure 5 and Figure 6 show, in this embodiment, a first toothed surface 503 and a second toothed surface 504 are respectively arranged on the surfaces of the two wristbands 2. The first toothed surface 503 and the second toothed surface 504 respectively extend along the length direction of the two wristbands. When the two wristbands 2 surround the wrist, the first toothed surface 503 and the second toothed surface 504 cooperate with each other. The first toothed surface 503 and the second toothed surface 504 can prevent the two wristbands 2 from sliding relatively after being fixed, and improve the connection stability.

[0076] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A smart watch, characterized in that, Comprising: A watch face (1), including a display panel (11) and a heart rate sensor (12); A wristband (2), two wristbands (2) are respectively detachably mounted at both ends of the watch face (1) through a connecting structure, the connecting structure includes a first connecting portion (31) and a second connecting portion (32), the first connecting portion (31) and the second connecting portion (32) are connected by an elastic member (402), when the first connecting portion (31) and the second connecting portion (32) are subjected to an external force and move in a direction away from each other, the elastic member (402) elongates and obtains elastic potential energy, when the external force is withdrawn or reduced, the elastic member (402) drives the first connecting portion (31) and the second connecting portion (32) to move in a direction close to each other through the restoring force.

2. The smart watch according to claim 1, wherein, The first connecting portion (31) is provided with a connecting groove (403) extending along the length direction of the wristband (2), the second connecting portion (32) is provided with a connecting rod (404), the connecting rod (404) is adapted to extend into the connecting groove (403) and slide along the depth direction of the connecting groove (403), the elastic member (402) is a return spring, one end of the return spring is connected to the end of the connecting rod (404), and the other end is connected to the bottom of the connecting groove (403).

3. The smart watch according to claim 2, characterized in that, Opposite wall surfaces of the first connecting portion (31) and the second connecting portion (32) are respectively provided with a first mounting groove and a second mounting groove, the connecting groove (403) is arranged at the center of the bottom of the first mounting groove, the connecting rod (404) is arranged at the center of the bottom of the second mounting groove and partially extends into the connecting groove (403); with the connecting groove (403) and the connecting rod (404) as the symmetry center, two folding plates are symmetrically arranged in the thickness direction of the wristband (2), the folding plate includes a first plate body (405) and a second plate body (406), one ends of the first plate body (405) and the second plate body (406) close to the connecting groove (403) and the connecting rod (404) are hinged together, and the other ends are respectively hinged to the inner walls of the first mounting groove and the second mounting groove.

4. The smart watch according to claim 2, wherein, Docking grooves (101) are arranged at opposite ends of the watch face (1), clamping grooves (102) are arranged on opposite inner walls of the docking grooves (101), the end of the second connecting portion (32) is adapted to extend into the docking groove (101), and a limiting hole (301) corresponding to the clamping groove (102) is arranged at the end of the second connecting portion (32), a limiting post (302) is movably arranged in the limiting hole (301) through a limiting spring (303), the end of the limiting post (302) is adapted to retract into the limiting hole (301) under the action of an external force, or partially extend out of the limiting hole (301) under the elastic force of the limiting spring (303), and the part of the limiting post (302) extending out of the limiting hole (301) is adapted to be inserted into and rotationally matched with the clamping groove (102).

5. The smart watch according to claim 4, characterized in that, The second connecting part (32) is provided with a sliding groove (304) communicating with the limiting hole (301). The sliding groove (304) extends from the middle of the limiting hole (301) along the length direction of the wristband (2) towards the direction away from the docking groove (101). One end of the sliding groove (304) away from the limiting hole (301) is provided with a sliding hole which penetrates through the side wall of the second connecting part (32). A sliding rod (305) is arranged in the sliding groove (304). One end of the sliding rod (305) is connected with the limiting column (302), and the other end is bent and extends into the sliding hole. The width dimension of the sliding groove (304) is larger than the dimension of the limiting column (302) protruding out of the limiting hole (301).

6. The smart watch according to claim 4, characterized in that, An annular convex rib (307) is arranged on the inner wall of the limiting hole (301). The limiting spring (303) is arranged on the side of the annular convex rib (307) away from the opening of the limiting hole (301). A convex edge (308) is arranged at the end of the limiting column (302) which is partially matched with the limiting spring (303). The convex edge (308) is in limiting cooperation with the annular convex rib (307).

7. The smart watch according to claim 1, characterized in that, The wristband (2) is connected with the connecting structure through a sliding part. The sliding part includes a sliding groove (601), a rotating roller (602) and a belt (603). The sliding groove (601) is opened on the side of the sliding part close to the wrist. A plurality of rotating rollers (602) are arranged in parallel and at intervals in the sliding groove (601) along the length direction of the wristband (2). The belt (603) is wound around the plurality of rotating rollers (602). A part of the surface of the belt (603) extends out of the sliding groove (601) to form a contact surface.

8. The smart watch according to claim 1, characterized in that, A plurality of jacks (501) are arranged at intervals along the length direction on one of the two wristbands (2), and a plug (502) matched with the jacks (501) is arranged at the end of the other wristband.

9. The smartwatch according to claim 8, characterized in that, A pull ring (71) is arranged on the surface of the other wristband (2) opposite to the plug (502).

10. The smart watch according to claim 1, wherein, The surfaces of the two wristbands (2) are respectively provided with a first toothed surface (503) and a second toothed surface (504). When the two wristbands (2) surround the wrist, the first toothed surface (503) and the second toothed surface (504) are matched together.

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