Wearable device with human body motion information acquisition function

Abstract

The invention discloses a wearable device with a human motion information acquisition function, and relates to the technical field of sports wearable devices, the wearable device comprises a chest strap and a heart rate monitoring module arranged on the chest strap, the chest strap is inelastic and is divided into a plurality of sections; a connecting structure is arranged between every two adjacent sections of chest straps; the connecting structure comprises a shell and a first elastic part arranged in the shell, the end part of each section of the chest strap is arranged in the corresponding shell in a sliding manner, when the distance between the close sections of the two adjacent sections of the chest strap is increased, the elastic force of the first elastic part is increased, and the side, facing the human skin, of the shell is provided with an adsorption part; in the human chest expansion stroke, the distance between the close ends of the two adjacent sections of chest belts is increased, and the elasticity of the first elastic piece is increased to limit the position of the heart rate monitoring module; in the contraction stroke of the chest of the human body, the distance between the close ends of the two adjacent sections of chest belts is reduced, and the adsorption force of the adsorption piece to the human skin is increased to limit the position of the heart rate monitoring module.

Description

Technical Field

[0001] This invention relates to the technical field of sports wearable devices, specifically a wearable device with the function of collecting human motion information. Background Technology

[0002] As is widely known, there are many types of wearable devices with human motion information collection functions, covering a variety of application scenarios from daily fitness to professional sports training, and the Bear Market Heart Rate Belt is one of them.

[0003] A chest heart rate monitor is a device used to monitor heart rate. It mainly consists of an adjustable elastic chest strap and a heart rate monitoring module mounted on the strap. The working principle is as follows: the chest heart rate monitor measures heart rate by detecting the electrical activity of the heart. Electrodes are placed close to the chest skin to capture the weak electrical signals generated when the heart beats. These signals are then processed by a built-in chip to calculate the number of heartbeats per minute and transmit the data to a connected device.

[0004] For example, the patent with announcement number CN212140429U, announcement date December 15, 2020, entitled "A Novel Heart Rate Belt," includes: a heart rate belt body and a heart rate belt soft band assembly. The heart rate belt body and the heart rate belt soft band assembly are connected, and the heart rate belt soft band assembly is fixed to the front and back of the human body. Its battery positive electrode spring adopts a multi-point contact method with the battery positive electrode area, ensuring reliable electrical contact, accurate data transmission, and high reliability, without intermittent data transmission. This patent has a simple structure, ensures the stability and accuracy of signal data transmission, is comfortable to wear, easy to install, improves product quality, and meets the high-quality requirements of fitness enthusiasts.

[0005] Because the electrodes on the heart rate monitoring module need to be in close contact with the wearer's skin, the chest strap needs to fit snugly against the wearer's skin. Therefore, it is usually elastic. In actual use, the elastic chest strap is easy to adapt to wearers with different chest sizes and is more convenient to wear. The elastic chest strap can adapt to the rise and fall of the wearer's chest cavity, ensuring that the heart rate monitoring module can fit snugly against the wearer's skin.

[0006] However, the disadvantage of elastic chest straps is that when the wearer is engaged in strenuous exercise, such as skipping rope, kickboxing, or running, the wearer's chest cavity rises and falls more significantly. The chest strap, which is tightly fitted to the skin, constantly exerts elastic force on the wearer's skin. As the chest cavity expands, the elasticity of the chest strap increases simultaneously. This can cause marks on the skin at best, and at worst, it can lead to chafing injuries. Furthermore, the increased elasticity of the chest strap can also affect the expansion of the chest cavity, leading to difficulty breathing. Summary of the Invention

[0007] The purpose of this invention is to provide a wearable device with human motion information collection function, thereby solving the technical problems in related technologies.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A wearable device with human motion information collection function includes a chest strap and a heart rate monitoring module disposed on the chest strap. The chest strap is inelastic and divided into several segments. A connecting structure is provided between adjacent chest strap segments. The connecting structure includes a shell and a first elastic element disposed inside the shell. The end of each chest strap segment is slidably arranged within the corresponding shell. When the distance between adjacent segments of the chest strap increases, the elastic force of the first elastic element increases. An adsorption element is disposed on the side of the shell facing the human skin. During the expansion stroke of the human chest cavity, the distance between adjacent ends of the chest strap segments increases, and the increased elastic force of the first elastic element provides a limiting effect on the position of the heart rate monitoring module. During the contraction stroke of the human chest cavity, the distance between adjacent ends of the chest strap segments decreases, and the adsorption force of the adsorption element on the human skin increases, providing a limiting effect on the position of the heart rate monitoring module.

[0009] As described above, the outer shell has a sliding groove for the end of the chest band to move inside. The sliding groove is arranged at an angle, and a sliding rod is slidably installed inside the sliding groove. The end of the chest band is rotatably connected to the sliding rod. During the expansion stroke of the human chest cavity, the end of the chest band moves away from the human skin along the inclined direction of the sliding groove.

[0010] The aforementioned adsorption element includes an adsorption cavity attached to human skin arranged on the outer shell, and a piston element disposed inside the outer shell. During the contraction stroke of the human chest cavity, the piston element drives the adsorption cavity to adsorb human skin based on the power of the end of the chest band.

[0011] As mentioned above, the edge of the adsorption cavity is provided with a flexible sealing strip.

[0012] As described above, a swing plate is provided between the end of the chest band and the piston, and the first elastic element is provided between the piston and the inner wall of the outer shell. During the expansion stroke of the human chest cavity, the swing plate swings based on the squeezing action of the end of the chest band, the elastic force of the first elastic element increases, and the adsorption force of the adsorption cavity disappears. During the contraction stroke of the human chest cavity, the swing plate swings based on the elastic force of the first elastic element, the distance between the near ends of two adjacent chest band segments decreases, and the adsorption force of the adsorption cavity increases.

[0013] As mentioned above, the swing axis of the swing plate is located off the midpoint of the swing plate and away from the end of the chest strap.

[0014] As mentioned above, the outer shell is also provided with a locking mechanism, which locks the end of the chest strap in the groove during the length travel of the chest strap when it is being adjusted.

[0015] The aforementioned locking mechanism includes a limiting groove at the end of the slide groove. The limiting groove is circular, and its radial dimension is larger than the width of the slide groove. A limiting block is provided at the end of the slide rod. The limiting block has an arc portion that matches the radial dimension of the limiting groove and a rectangular portion whose width matches the width of the slide groove. A trigger is provided on the chest strap. When the chest strap length needs to be adjusted, the trigger drives the slide rod to rotate, and the rectangular portion aligns with the slide groove, thus restricting the movement of the chest strap end. After the chest strap length adjustment is completed, the trigger drives the slide rod to rotate in the opposite direction, and the arc portion aligns with the slide groove. During the expansion stroke of the human chest cavity, the end of the chest strap moves away from the human skin along the inclined direction of the slide groove.

[0016] The aforementioned triggering element includes a trigger block slidably arranged on the chest strap, and a transmission bar connecting the trigger block and the slide rod. A trigger rod is rotatably mounted on the slide rod, and one end of the transmission bar is fixedly connected to the trigger block and the other end is fixedly connected to the trigger rod.

[0017] As mentioned above, the trigger rod undergoes plastic deformation when subjected to external force.

[0018] The beneficial effects of the present invention are as follows: by setting up a connection structure, the position of the heart rate monitoring module can be restricted by elasticity and adsorption force respectively during the rise and fall of the human chest cavity. Compared with always using elasticity to restrict the position of the heart rate monitoring module, the restriction method provided by the present invention can effectively reduce the pressure of the chest strap on the human skin while restricting the position of the heart rate monitoring module. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of a wearable device with human motion information acquisition function provided in one embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of the connection structure of a wearable device with human motion information acquisition function provided in one embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the connection structure of a wearable device with human motion information acquisition function provided in another embodiment of the present invention; Figure 4 This is a cross-sectional structural diagram of a blockage block of a wearable device with human motion information collection function when blocking a channel, provided in another embodiment of the present invention; Figure 5 This is a cross-sectional structural diagram of a wearable device with human motion information collection function when the blocking block does not block the channel, according to another embodiment of the present invention. Figure 6 This is a first-view exploded view of the connection structure of a wearable device with human motion information acquisition function provided in another embodiment of the present invention; Figure 7 This is a second-view exploded view of the connection structure of a wearable device with human motion information acquisition function provided in another embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of a sealing block for a wearable device with human motion information collection function, provided in another embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Chest strap; 2. Heart rate monitoring module; 3. Connecting structure; 30. Outer shell; 31. First elastic element; 32. Adsorption element; 320. Adsorption chamber; 321. Flexible sealing strip; 322. Piston plate; 323. Piston chamber; 33. Slide groove; 34. Slide rod; 35. Swing plate; 36. Limiting groove; 37. Limiting block; 370. Arc part; 371. Rectangular part; 38. Trigger block; 39. Transmission bar; 40. Trigger rod; 41. Channel; 42. Blocking block; 420. Blocking part; 421. Connecting part; 43. Second elastic element. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 8 The present invention will now be described in further detail.

[0023] One embodiment of the present invention provides a wearable device with human motion information collection function, including a chest strap 1 and a heart rate monitoring module 2 disposed on the chest strap 1. The chest strap 1 is inelastic and divided into several segments; a connecting structure 3 is provided between adjacent segments of the chest strap 1; the connecting structure 3 includes a shell 30 and a first elastic element 31 disposed inside the shell 30. The end of each segment of the chest strap 1 is slidably arranged within the corresponding shell 30, and the elastic force of the first elastic element 31 increases when the distance between adjacent segments of the chest strap 1 increases. An adsorption element 32 is disposed on the side of the shell 30 facing the human skin; during the expansion stroke of the human chest cavity, the distance between adjacent segments of the chest strap 1 increases, and the increased elastic force of the first elastic element 31 provides a limiting effect on the position of the heart rate monitoring module 2; during the contraction stroke of the human chest cavity, the distance between adjacent segments of the chest strap 1 decreases, and the adsorption force of the adsorption element 32 on the human skin increases, providing a limiting effect on the position of the heart rate monitoring module 2.

[0024] Specifically, the chest strap 1 is used to attach the heart rate monitoring module 2 to the chest of the human body. The heart rate monitoring module 2 measures the heart rate by detecting the electrical activity of the heart, which is existing technology and will not be elaborated here. However, in existing technology, because it is necessary to ensure that the electrode pads on the heart rate monitoring module 2 are in close contact with the wearer's skin, the chest strap 1 needs to be in close contact with the wearer's skin. Therefore, it is usually elastic. In actual use, the elastic chest strap 1 is easy to adapt to wearers with different chest sizes and is relatively easy to wear. The elastic chest strap 1 can adapt to the rise and fall of the wearer's chest cavity, ensuring that the heart rate monitoring module 2 can better fit the wearer's skin. However, the disadvantage of the elastic chest strap 1 is that when the wearer is engaged in strenuous exercise, such as rope skipping, kickboxing, running, etc., the wearer's chest cavity rises and falls more, and the chest strap 1, which is in close contact with the skin, always has elastic force acting on the wearer's skin. As the chest cavity expands, the elasticity of the chest strap 1 increases synchronously. This can cause marks on the skin at best, and in severe cases, it can cause skin injuries. Moreover, the increased elasticity of the chest strap 1 can also affect the expansion of the chest cavity, leading to difficulty in breathing.

[0025] Based on the aforementioned technical issues, in this embodiment, the chest band 1 is made of a non-elastic or essentially non-elastic material and is divided into several segments, preferably four segments, i.e., three connecting structures 3 are arranged. A segment is provided between two adjacent connecting structures 3, and a segment is provided between the connecting structure 3 and the heart rate monitoring module 2. The portion of the chest band 1 connected to the heart rate monitoring module 2 has a length adjustment function. After length adjustment, it can be fixed using methods such as Velcro, i.e., the chest band 1 slides within the outer shell 30. When the human chest cavity rises and falls, the chest band 1 can move relative to the outer shell 30. The first elastic element 31 can be used to connect the proximal ends of two chest band segments 1. When the human chest cavity expands, the proximal ends of the two chest band segments 1 move away from each other, and the elastic force of the first elastic element 31 increases. At this time, the elastic force of the first elastic element 31 provides a limiting effect on the position of the heart rate monitoring module 2. Preferably, the first elastic element 31... The elastic force of the elastic element 31 is basically perpendicular to the direction of human skin. That is, when the chest cavity expands, the pressure is mainly exerted on the human skin by the outer shell 30, rather than the chest band 1. Therefore, an adsorption element 32 is also provided on the side of the outer shell 30 facing the human skin. The adsorption element 32 is like a suction cup structure. The channel 41 is in flexible contact with the adsorbed object. When the outer shell 30 applies pressure to the human skin, the flexibility of the adsorption element 32 can ensure comfortable wearing. When the human chest cavity contracts, the adsorption force of the adsorption element 32 increases. The adsorption force is used to restrict the position of the heart rate monitoring module 2. The suction cup structure is existing technology and will not be described in detail. The outer shell 30 is adsorbed onto the human skin. At this time, the elastic force of the first elastic element 31 is small, and the pressure of the chest band 1 on the human skin can be effectively reduced. That is, during the rise and fall of the human chest cavity, the elastic force and the adsorption force alternately restrict the position of the heart rate monitoring module 2.

[0026] The beneficial effect of this embodiment is that by setting the connecting structure 3, the position of the heart rate monitoring module 2 can be restricted by elasticity and adsorption during the rise and fall of the human chest cavity. Compared with using elasticity to restrict the position of the heart rate monitoring module 2, the restriction method provided by the present invention can effectively reduce the pressure of the chest strap 1 on the human skin while restricting the position of the heart rate monitoring module 2.

[0027] Furthermore, the outer shell 30 has a groove 33 inside for the end of the chest band 1 to move. The groove 33 is arranged at an inclination, and a slide rod 34 is slidably arranged in the groove 33. The end of the chest band 1 is rotatably connected to the slide rod 34. During the expansion stroke of the human chest cavity, the end of the chest band 1 moves away from the human skin along the inclination direction of the groove 33.

[0028] Specifically, during the expansion of the human chest cavity, the end of the chest band 1 pulls the slide bar 34 away from the human skin along the inclined direction of the slide groove 33. Then most of the chest band 1 will be away from the human skin, and the position of the heart rate monitoring module 2 is mainly restricted by the suction component 32. In this way, the position of the heart rate monitoring module 2 is restricted, and the chest band 1 can also avoid pressing on the human skin when the human chest cavity expands.

[0029] Preferably, the adsorption member 32 includes an adsorption cavity 320 attached to human skin arranged on the outer shell 30, and a piston member disposed inside the outer shell 30. During the contraction stroke of the human chest cavity, the piston member drives the adsorption cavity 320 to adsorb human skin based on the power of the end of the chest band 1.

[0030] Specifically, the outer shell 30 has a rectangular flat surface on the side facing the human skin, and a flexible sealing strip 321 is provided at the edge of the flat surface. When the flexible sealing strip 321 is squeezed by external force, it will undergo elastic deformation, making the flat surface closer to the human skin. Then, the air in the adsorption cavity 320 formed between the flat surface and the flexible sealing strip 321 will decrease, and the internal pressure will be lower than the external pressure, thus forming an adsorption effect. The adsorption cavity 320 is connected to the piston cavity 323 of the piston member. When the piston plate 322, which is slidably disposed in the piston cavity 323, moves towards the direction of the human skin, it is equivalent to pushing the gas in the piston cavity 323 into the adsorption cavity 320. The pressure will increase. When there is no pressure difference between the adsorption chamber 320 and the outside or the pressure is greater than the outside pressure, the adsorption effect of the adsorption chamber 320 on human skin disappears. When the piston plate 322 moves away from human skin, it is equivalent to drawing gas from the adsorption chamber 320, making the pressure in the adsorption chamber 320 less than the outside pressure, causing a pressure difference change, so that the adsorption chamber 320 can be adsorbed on human skin. A dynamic seal is provided between the piston plate 322 and the piston chamber 323 (this is prior art and will not be described in detail) to prevent gaps from appearing between the piston plate 322 and the piston chamber 323, so that there is no pressure difference change between the adsorption chamber 320 and the outside.

[0031] In this process, the movement of the piston plate 322 in the piston assembly is based on the power of the end of the chest band 1. In an optional embodiment, a swing plate 35 is provided between the end of the chest band 1 and the piston assembly, and a first elastic element 31 is provided between the piston assembly and the inner wall of the outer shell 30. During the expansion stroke of the human chest cavity, the swing plate 35 swings based on the squeezing action of the end of the chest band 1, the elastic force of the first elastic element 31 increases, and the adsorption force of the adsorption cavity 320 disappears. During the contraction stroke of the human chest cavity, the swing plate 35 swings based on the elastic force of the first elastic element 31, the distance between the near ends of two adjacent sections of the chest band 1 decreases, and the adsorption force of the adsorption cavity 320 tightens and increases.

[0032] Specifically, each outer shell 30 corresponds to two adjacent ends of two adjacent chest straps 1. Accordingly, each outer shell 30 is provided with two swing plates 35. Each swing plate 35 is rotatably disposed inside the outer shell 30 via a swing shaft. The positions of the two swing plates 35 corresponding to each outer shell 30 are basically symmetrically arranged. The first elastic element 31 is disposed between the piston plate 322 and the inner wall of the outer shell 30. The elastic force direction of the first elastic element 31 is basically perpendicular to the human body. Based on the elastic force of the first elastic element 31, the piston plate 322 tends to always move away from the human skin. However, there is a position farthest from the human skin. That is, when the end of the chest strap 1 is at the end of the groove 33 closest to the human skin, one end of the swing plate 35 is on the moving path of the end of the chest strap 1, and the other end abuts against the piston plate 322. During the expansion of the wearer's chest cavity, the distance between two adjacent outer shells 30 increases. The end of the chest strap 1 moves away from the human skin, which will exert a squeezing effect on one end of the swing plate 35, causing it to swing. Then, the other end of the swing plate 35 will exert a squeezing effect on the piston plate 322, causing it to move closer to the human skin. During this process, the elastic force of the first elastic element 31 increases. When there is no pressure difference between the adsorption cavity 320 and the outside or the pressure is greater than the outside pressure, the adsorption effect of the adsorption cavity 320 on the human skin disappears. During this process, based on the elastic force of the first elastic element 31, the outer shell 30 squeezes the adsorption cavity 320 against the human skin, thereby restricting the position of the heart rate monitoring module 2. The chest strap 1, due to the function of the groove 33, tends to move away from the human skin and basically does not exert a squeezing effect on the human skin. Its main purpose is to connect the adjacent outer shells 30.

[0033] During the contraction of the wearer's chest cavity, the distance between the two adjacent outer shells 30 decreases, and the squeezing effect of the end of the chest strap 1 on one end of the swing plate 35 disappears. Then, the first elastic element 31 releases its elastic force, which drives the piston plate 322 to squeeze the other end of the swing plate 35 in the opposite direction. One end of the swing plate 35 pushes the end of the chest strap 1 closer to the human skin, and the elastic force of the first elastic element 31 also drives the piston plate 322 away from the human skin. During this process, the cooperation between the piston plate 322 and the piston cavity 323 draws in the gas in the adsorption cavity 320, so that the pressure in the adsorption cavity 320 gradually becomes less than the external pressure difference, and the adsorption cavity 320 will then be adsorbed onto the human skin. During this process, based on the adsorption effect of the adsorption cavity 320, the position of the heart rate monitoring module 2 is restricted. The elastic force of the first elastic element 31 is not acting towards the human skin at this time. Therefore, the chest strap 1 can basically not participate in restricting the position of the heart rate monitoring module 2, and its main purpose is to connect the adjacent outer shells 30.

[0034] Furthermore, the swing axis of the swing plate 35 is offset from the midpoint of the swing plate 35 and is far from the end of the chest band 1. Specifically, the swing plate 35 and the swing axis form a lever. By using the lever principle, the position of the swing axis is set closer to the other end of the swing plate 35 (i.e., the end far from the chest band 1). During the expansion of the wearer's chest cavity, the swing plate 35 can form a force-saving lever, which will greatly reduce the resistance to the expansion of the wearer's chest cavity, thereby effectively ensuring smooth breathing.

[0035] In another embodiment of the present invention, the outer shell 30 is further provided with a locking mechanism, which locks the end of the chest strap 1 in the slide groove 33 during the length travel of the chest strap 1 when it is worn.

[0036] Specifically, in the aforementioned embodiment, when the wearer's chest cavity expands, the end of the chest strap 1 inside the outer shell 30 will move away from the human skin along the inclined direction of the slide groove 33. Therefore, when adjusting the length of the part of the chest strap 1 connected to the heart rate monitoring module 2 during the wearing process, the position of the end of the chest strap 1 connected to the outer shell 30 will inevitably change. Therefore, in this embodiment, a locking mechanism for locking the position of the end of the chest strap 1 is provided on the outer shell 30. When adjusting the length of the chest strap 1 connected to the heart rate monitoring module 2, the locking mechanism is used to lock the remaining end of the chest strap 1 inside the outer shell 30 to prevent its position from changing.

[0037] Preferably, the locking mechanism includes a limiting groove 36 at the end of the slide groove 33. The limiting groove 36 has a circular structure, and its radial dimension is larger than the width dimension of the slide groove 33. The end of the slide rod 34 is provided with a limiting block 37. The limiting block 37 has an arc portion 370 that matches the radial dimension of the limiting groove 36 and a rectangular portion 371 whose width dimension matches the width dimension of the slide groove 33. A trigger is provided on the chest strap 1. When it is necessary to adjust the length of the chest strap 1, the trigger drives the slide rod 34 to rotate, and the rectangular portion 371 corresponds to the slide groove 33, thus restricting the movement of the end of the chest strap 1. After the length of the chest strap 1 is adjusted, the trigger drives the slide rod 34 to rotate in the opposite direction, and the arc portion 370 corresponds to the slide groove 33. During the expansion stroke of the human chest cavity, the end of the chest strap 1 moves away from the human skin along the inclined direction of the slide groove 33.

[0038] Specifically, the limiting groove 36 is located at the end of the slide groove 33 closest to the human skin. It has a circular structure and is connected to the slide groove 33. Since the slide groove 33 is a long strip structure, the slide rod 34 needs to slide within the slide groove 33. Therefore, the size of the slide rod 34 needs to match the width of the slide groove 33. To lock the position of the slide rod 34, the radial dimension of the limiting groove 36 should be greater than the width of the slide groove 33. That is, a limiting block 37 is installed at the end of each slide rod 34. 7 has an arc-shaped portion 370 that matches the radial dimension of the limiting groove 36, and a rectangular portion 371 whose width matches the width of the slide groove 33. When it is necessary to lock the end position of the chest strap 1, that is, when it is necessary to adjust the length of the chest strap 1, the trigger drives the slide rod 34 to rotate. The slide rod 34 then drives the rectangular portion 371 on the limiting block 37 to correspond with the slide groove 33. At this time, the arc-shaped portion 370, whose radial dimension of the limiting block 37 is greater than the width of the slide groove 33, is equivalent to being stuck in the limiting position. Within the groove 36, the position of the end of the chest strap 1 is restricted. When it is not necessary to lock the position of the end of the chest strap 1, that is, after the length of the chest strap 1 is adjusted, the triggering element drives the slide bar 34 to rotate in the opposite direction, so that the arc part 370 corresponds to the slide groove 33, and the rectangular part 371 can smoothly enter the slide groove 33. In a preferred embodiment, the triggering element includes a trigger block 38 slidably arranged on the chest strap 1, the trigger block 38 is positioned in a position that is easy for the wearer's fingers to touch, and a transmission bar 39 connecting the trigger block 38 and the slide bar 34. A trigger rod 40 is rotatably provided on the slide bar 34. One end of the transmission bar 39 is fixed to the trigger block 38 and the other end is fixed to the trigger rod 40. That is, pushing the trigger block 38 to move on the chest strap 1 can drive the trigger rod 40 to rotate around the central axis of the slide bar 34. The trigger rod 40 can also rotate on the slide bar 34 to adapt to the position change of the slide bar 34, thus realizing the position change of the limiting block 37.

[0039] Preferably, the trigger rod 40 undergoes plastic deformation when subjected to external force; specifically, when wearing the chest strap 1, the chest strap 1 needs to contact the human skin and adapt to the shape of the human skin and bones. By utilizing the plastic deformation of the trigger rod 40, after the chest strap 1 adapts to the shape of the human skin and bones, it can basically maintain the shape structure without change, avoiding excessive movement and abrasion of the skin.

[0040] Furthermore, the outer shell 30 is also provided with a channel 41 connecting the adsorption cavity 320 and the slide groove 33. The sealing block 42 is slidably disposed in the channel 41. The end of the sealing block 42 away from the adsorption cavity 320 is connected to a second elastic member 43. When the rectangular part 371 corresponds to the slide groove 33, the limiting block 37 squeezes the second elastic member 43 to deform it. The second elastic member 43 drives the sealing block 42 to disengage from the sealing of the channel 41. When the arc part 370 corresponds to the slide groove 33, the limiting block 37 does not squeeze the second elastic member 43. Under the elastic force of the second elastic member 43, the sealing block 42 seals the channel 41. A dynamic sealing member is provided between the sealing block 42 and the channel 41.

[0041] Specifically, the chute 33 connects to the outside, and the sealing block 42 and the channel 41 are also sealed by a dynamic seal (this is prior art and will not be elaborated). In the aforementioned embodiment, when wearing the chest strap 1, not only the length of the chest strap 1 needs to be adjusted, but also the position of the heart rate monitoring module 2 needs to be adjusted to place it in the designated wearing position, so as to better monitor heart rate changes. Thus, when adjusting the position of the heart rate monitoring module 2 and the position of the chest strap 1, there should be no adsorption between the adsorption cavity 320 and the human skin. Therefore, in this embodiment, a channel 41 is opened between the adsorption cavity 320 and the chute 33, and the position change of the limiting block 37 in the limiting groove 36 is used to realize the connection and isolation between the adsorption cavity 320 and the chute 33. That is, a second elastic element is connected to the end of the sealing block 42 away from the adsorption cavity 320. 43. The second elastic element 43 is a spring sheet. The two ends of the spring sheet are arranged to swing on the inner wall of the channel 41. However, the elastic force of the second elastic element 43 tends to always drive the sealing block 42 to block the channel 41. The middle of the spring sheet is arched and enters the limiting groove 36. When the limiting block 37 changes position in the limiting groove 36, it can exert a squeezing effect on the spring sheet, causing the spring sheet to leave the limiting groove 36. Then the spring sheet drives the sealing block 42 to remove the blockage of the channel 41. That is, when adjusting the length of the chest strap 1, the rectangular part 371 of the limiting block 37 corresponds to the slide groove 33. At this time, the arc part 370 will exert a squeezing effect on the spring sheet. When the slide rod 34 needs to slide along the slide groove 33, the arc part 370 corresponds to the slide groove 33, and the squeezing effect on the spring sheet is removed, thereby realizing the connection and isolation between the adsorption cavity 320 and the slide groove 33.

[0042] The blocking block 42 includes a blocking part 420 that is adapted to the size of the channel 41, and a connecting part 421 that connects the second elastic member 43 and the blocking part 420. The size of the connecting part 421 is smaller than that of the blocking part 420. When the blocking part 420 is inserted into the channel 41, the connection between the adsorption cavity 320 and the slide groove 33 is interrupted. When the blocking part 420 is not inserted into the channel 41, the connecting part 421 cannot block the channel 41, and the adsorption cavity 320 is connected to the slide groove 33.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A wearable device with human motion information collection function, comprising a chest strap and a heart rate monitoring module arranged on the chest strap, characterized in that, The chest band is inelastic and is divided into several sections; a connecting structure is arranged between two adjacent chest bands; The connecting structure comprises a shell and a first elastic member arranged inside the shell; the end of each chest band is arranged to slide in the corresponding shell; when the distance between the adjacent ends of two adjacent chest bands increases, the elastic force of the first elastic member increases; the side of the shell facing the human skin is provided with a suction member; During the expansion stroke of the human thoracic cavity, the distance between the adjacent ends of two adjacent chest bands increases, and the elastic force of the first elastic member increases to provide a limiting effect on the position of the heart rate monitoring module; During the contraction stroke of the human thoracic cavity, the distance between the adjacent ends of two adjacent chest bands decreases, and the suction force of the suction member on the human skin increases to provide a limiting effect on the position of the heart rate monitoring module.

2. The wearable device having a human motion information collection function according to claim 1, characterized by, A sliding groove is arranged in the shell for the movement of the end of the chest band; the sliding groove is arranged to be inclined; a sliding rod is arranged to slide in the sliding groove; the end of the chest band is rotationally connected to the sliding rod; during the expansion stroke of the human thoracic cavity, the end of the chest band moves away from the human skin along the inclined direction of the sliding groove.

3. The wearable device having a human motion information collection function according to claim 2, characterized by, The suction member comprises a suction cavity arranged on the shell to adhere to the human skin, and a piston member arranged in the shell; during the contraction stroke of the human thoracic cavity, the piston member drives the suction cavity to adhere to the human skin based on the power of the end of the chest band.

4. The wearable device having a human motion information collection function according to claim 3, characterized by, The edge of the suction cavity is provided with a flexible sealing strip.

5. The wearable device having a human motion information collection function according to claim 3, characterized by, A swing plate is arranged between the end of the chest band and the piston member; the first elastic member is arranged between the piston member and the inner wall of the shell; during the expansion stroke of the human thoracic cavity, the swing plate swings based on the extrusion of the end of the chest band; the elastic force of the first elastic member increases; the suction force of the suction cavity disappears; during the contraction stroke of the human thoracic cavity, the swing plate swings based on the elastic force of the first elastic member; the distance between the adjacent ends of two adjacent chest bands decreases; the suction force of the suction cavity increases.

6. The wearable device having a human motion information collection function according to claim 5, characterized in that, The swing axis of the swing plate is offset from the midpoint of the swing plate and is away from the end of the chest band.

7. The wearable device having a human motion information collection function according to claim 5, characterized by, A locking mechanism is further arranged on the shell; during the adjustment of the length of the chest band, the locking mechanism locks the end of the chest band in the sliding groove.

8. The wearable device having a human motion information collection function according to claim 7, characterized in that, The locking mechanism comprises a limiting groove arranged in the end of the sliding groove; the limiting groove is in a circular structure; the radial dimension of the limiting groove is greater than the width dimension of the sliding groove; the end of the sliding rod is provided with a limiting block; the limiting block has a circular arc portion matched with the radial dimension of the limiting groove and a rectangular portion with a width dimension matched with the width dimension of the sliding groove; a trigger member is arranged on the chest band; When the length of the chest band needs to be adjusted, the trigger member drives the sliding rod to rotate; the rectangular portion corresponds to the sliding groove; the movement of the end of the chest band is limited; After the length of the chest band is adjusted, the trigger member drives the sliding rod to rotate reversely; the circular arc portion corresponds to the sliding groove; during the expansion stroke of the human thoracic cavity, the end of the chest band moves away from the human skin along the inclined direction of the sliding groove.

9. The wearable device having a human motion information collection function according to claim 8, characterized in that, The trigger member comprises a trigger block arranged to slide on the chest band and a transmission strip connecting the trigger block and the sliding rod; a trigger rod is rotationally arranged on the sliding rod; one end of the transmission strip is fixedly connected to the trigger block and the other end is fixedly connected to the trigger rod.

10. The wearable device having a human motion information collection function according to claim 9, characterized in that, When the trigger rod is subjected to an external force, it is plastically deformed.

Images