A heart rate strap and a connection device therefor

Abstract

A heart rate band and a connecting device thereof, the connecting device comprising: a first connecting piece and a second connecting piece, the first connecting piece being provided with a first magnetic attraction part, a first limiting part and a second limiting part; the second connecting piece being provided with a second magnetic attraction part, a third limiting part and a fourth limiting part. Due to the connecting device being provided with a group of magnetic attraction parts and two groups of limiting parts, when the heart rate band is worn, after the first connecting piece and the second connecting piece are close to each other, the magnetic attraction force generated by the group of magnetic attraction parts will guide the first connecting piece and the second connecting piece to be connected, so as to realize the connection of the two groups of limiting parts; so that when the heart rate band is worn, the first connecting piece and the second connecting piece only need to be roughly close to each other to realize automatic magnetic attraction connection, without the need for the user to carefully align the limiting parts, greatly facilitating the wearing of the heart rate band; and the two groups of limiting parts of the connecting device can limit the freedom degrees of the docking direction and the stacking direction, so that the stability of the heart rate band in the wearing state is improved.

Description

Technical Field

[0001] This utility model relates to the field of heart rate monitoring technology, specifically to a heart rate belt and its connecting device. Background Technology

[0002] A heart rate monitor is a wearable heart rate measurement device. The measurement principle of a heart rate monitor is to collect electrocardiogram signals. A heart rate monitor usually contains two sensing electrodes. When the heart beats, it generates a small current, which creates a voltage difference between the two sensing electrodes. The heart rate is measured by the cardiac current generated by the human heartbeat.

[0003] Currently, most heart rate monitors are strapped to the body with detachable buckles, allowing users to secure the monitor. However, this method is somewhat cumbersome. Users must fasten the buckle in front of them and then turn it behind or to their side to position the monitoring module in front. This inconvenient operation results in a poor user experience. Utility Model Content

[0004] This utility model provides a heart rate belt and its connecting device to solve the problem of inconvenience for users to wear and operate it.

[0005] In some embodiments, a connection device for a heart rate monitor is provided, comprising: a first connector and a second connector; the first connector is used to be installed at one end of the strap of the heart rate monitor, and the first connector has a first magnetic attraction portion, a first limiting portion, and a second limiting portion; the second connector is used to be installed at the other end of the strap of the heart rate monitor, and the second connector has a second magnetic attraction portion, a third limiting portion, and a fourth limiting portion; the connection device includes at least a fastened state, in which the first connector and the second connector are abutted along a first direction, and at least a portion of the first connector and the second connector are stacked along a second direction; the first magnetic attraction portion and the second magnetic attraction portion are magnetically attracted; the first limiting portion and the third limiting portion are connected in a cooperative manner to limit the degree of freedom of linear movement of the first connector and the second connector relative to each other in the opposite direction of abutting along the first direction; the second limiting portion and the fourth limiting portion are connected in a cooperative manner to limit the degree of freedom of linear movement of the first connector and the second connector relative to each other in the second direction; wherein, the first direction and the second direction are perpendicular.

[0006] In some embodiments, the connecting device further includes a disengaged state, wherein the first connector and the second connector can be flipped about an axis parallel to a third direction to switch between the engaged state and the disengaged state, and the third direction is perpendicular to the first direction and the second direction.

[0007] In some embodiments, one of the second limiting portion and the fourth limiting portion is a slot and the other is a buckle. The opening of the slot is parallel to the first direction, and the buckle can be flipped around an axis parallel to the third direction to engage with and disengage from the slot.

[0008] In some embodiments, one of the first limiting portion and the third limiting portion is a first groove and the other is a first protrusion. The opening of the first groove is parallel to the second direction, and the first protrusion can be engaged with and disengaged from the first groove. The slot is located on the side wall of the first groove, and the buckle is located on the side wall of the first protrusion. On the plane perpendicular to the second direction, the first groove and the first protrusion have a T-shaped structure. And / or, one of the first magnetic attraction portion and the second magnetic attraction portion is located in the first groove, and the other is located on the first protrusion.

[0009] In some embodiments, the first groove includes a first sidewall and a second sidewall opposite to each other along the first direction, the slot is located on the first sidewall, the second sidewall is configured as a first inclined surface, and the distance between the upper end of the first inclined surface and the first sidewall is greater than the distance between the lower end of the first inclined surface and the first sidewall; the first protrusion includes a third sidewall and a fourth sidewall opposite to each other along the first direction, the buckle is located on the third sidewall, and the fourth sidewall is a second inclined surface adapted to the second sidewall; or, one of the first groove and the first protrusion is provided with a second groove, and the other is provided with a second protrusion, the second groove and the second protrusion are connected to limit the degree of freedom of the first connector and the second connector to move linearly along the first direction.

[0010] In some embodiments, the first connector further includes a flipping operation portion, which protrudes from the second connector in the engaged state and in the second direction.

[0011] In some embodiments, the connecting device further includes a semi-engaged state, in which the first connecting member and the second connecting member move relative to each other along the first direction, and the engaged state and the semi-engaged state can be switched; in the semi-engaged state, the first magnetic attraction part and the second magnetic attraction part are magnetically attracted, the first limiting part and the third limiting part are connected to each other, limiting the degree of freedom of the first connecting member and the second connecting member to move closer to each other along the first direction, and the second limiting part is separated from the fourth limiting part.

[0012] In some embodiments, the connecting device further includes a disengaged state, wherein the first connector and the second connector are reversible about an axis parallel to the first direction to switch between the semi-engaged state and the disengaged state.

[0013] In some embodiments, one of the second limiting portion and the fourth limiting portion is a slot and the other is a buckle. The opening of the slot is parallel to the first direction, and the buckle can move linearly along the first direction to engage with and disengage from the slot.

[0014] In some embodiments, one of the first limiting portion and the third limiting portion is a first groove and the other is a first protrusion. The opening of the first groove is parallel to the second direction, and the first protrusion can be engaged with and disengaged from the first groove along the second direction. The slot is located on the side wall of the first groove, and the buckle is located on the side wall of the first protrusion.

[0015] In some embodiments, in the first direction, the width of the first groove is greater than the width of the first protrusion; and / or, in a third direction, the length of the first groove is greater than the length of the first protrusion, the third direction being perpendicular to the first direction and the second direction.

[0016] In some embodiments, a heart rate belt is provided, including a monitoring device, a strap, and a connecting device for the heart rate belt. The monitoring device is located in the middle of the strap and is used to monitor the human heart rate and generate a corresponding heart rate signal. A first connecting member is installed at one end of the strap, and a second connecting member is installed at the other end of the strap.

[0017] According to the heart rate belt and its connecting device of the above embodiment, since a set of magnetic attraction parts and two sets of limiting parts are provided between the first connector and the second connector of the connecting device, and the limiting directions of the two sets of limiting parts are different; when the heart rate belt with this structure is worn, after the first connector and the second connector are brought close together, the magnetic attraction force generated by the set of magnetic attraction parts will guide the first connector and the second connector to dock, so as to realize the connection of the two sets of limiting parts; so that when wearing the heart rate belt, it is only necessary to bring the first connector and the second connector close together to achieve automatic magnetic attraction connection, without the need for the user to carefully align the limiting parts, which greatly facilitates the wearing of the heart rate belt; in addition, the two sets of limiting parts of the connecting device can limit the degrees of freedom of docking direction and stacking direction. The docking direction and stacking direction are the main force directions when the heart rate belt is worn, so that the connecting device is not easily squeezed and broken by the body when the heart rate belt is worn, thus improving the stability of the heart rate belt. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the connection device of the heart rate monitor located on the side of the human body when it is worn, according to one embodiment. Figure 2 This is a schematic diagram showing the connection device of the heart rate monitor located on the back of the human body when worn in one embodiment; Figure 3 This is a schematic diagram of the connection device in a fastened state in one embodiment; Figure 4 This is a cross-sectional view of the connecting device in a fastened state in one embodiment; Figure 5 This is a side view of the connecting device in a separated state in one embodiment; Figure 6 This is a schematic diagram of the structure of the connecting device in a separated state in one embodiment; Figure 7 This is a schematic diagram of the structure of the first connector in one embodiment; Figure 8 This is a schematic diagram of the structure of the second connector in one embodiment; Figure 9 This is a schematic diagram of the connection device in a fastened state in one embodiment; Figure 10 This is a cross-sectional view of the connecting device in a fastened state in one embodiment; Figure 11 This is a schematic diagram of the structure of the connecting device in a separated state in one embodiment; Figure 12 This is a schematic diagram of the structure of the connecting device in a separated state in one embodiment; Figure 13 This is a cross-sectional view of the connecting device in a semi-engaged state in one embodiment. Figure 14 This is a side view of the connecting device in a semi-engaged state in one embodiment; Figure 15 This is a side view of the connecting device in a fastened state in one embodiment; Figure 16 This is a schematic diagram of the heart rate monitor structure in one embodiment; The attached figures are labeled as follows: 10-Connecting device, 20-Monitoring device, 30-Restraint strap; 1-First connector, 11-First magnetic suction part, 12-First limiting part, 121-First side wall, 122-Second side wall, 123-Second protrusion, 13-Second limiting part, 14-Flipping operation part, 15-First restraint strap connecting part; 2-Second connector, 21-Second magnetic attraction part, 22-Third limiting part, 221-Third side wall, 222-Fourth side wall, 223-Second groove, 23-Fourth limiting part, 24-Second restraint strap connection part. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0022] Please refer to Figure 1 In some embodiments, a connection device 10 for a heart rate monitor is provided. The heart rate monitor includes a monitoring device for measuring a human heart rate. The heart rate monitor is worn on the human body, for example, on the chest. The monitoring device 20 of the heart rate monitor is located near the heart. Of course, the heart rate monitor can also be worn on other parts of the human body for measurement. In this embodiment, wearing it on the chest is used as an example.

[0023] The connecting device 10 is a key component for wearing and removing the heart rate belt during the wearing process. The connecting device 10 includes two detachably connected parts. When the two parts of the connecting device 10 are connected, the heart rate belt can be worn on the human body for heart rate measurement. When the connecting device 10 is separated into two parts, the heart rate belt can be removed from the human body.

[0024] In this embodiment, the connecting device 10 is a magnetic snap-fit ​​structure. The connecting device 10 has a set of magnetic parts, each set including two magnetically attracted components. Each of the two parts of the connecting device 10 is provided with a magnetically attracted component. When the user wears the heart rate belt, after bringing the two parts of the connecting device 10 close to their approximate positions, a magnetic attraction force is formed between the two magnetically attracted components. This magnetic attraction force will automatically move the two parts of the connecting device 10 to the positions positioned by the two magnetically attracted components, forming a snap-fit, which greatly improves the convenience of wearing the connecting device 10. For example, when wearing the heart rate belt, the monitoring device 20 of the heart rate belt can be placed directly on the chest, and the connecting device 10 can be placed on the side or back of the body. The user can directly combine the two parts of the connecting device 10 together from the side or back of the body to achieve a magnetic snap-fit; there is no need to first place the connecting device 10 on the chest for assembly and then adjust it to the side or back of the body, which greatly improves the convenience and efficiency of wearing the heart rate belt and enhances the user experience.

[0025] The two detachable parts of the connecting device 10 are each provided with complementary limiting parts, and there are two sets of limiting parts between the two parts. These two sets of limiting parts limit the degrees of freedom in different directions after the two parts of the connecting device 10 are assembled. During the wearing of the heart rate monitor, the first direction is the direction in which the two parts of the connecting device 10 are pulled closer together against the elastic force of the heart rate monitor's restraint band 30, and parts of the two parts of the connecting device 10 are stacked together along the second direction. After the heart rate monitor is worn, the first set of limiting parts limits the degrees of freedom of the two parts of the connecting device 10 in the first direction, and the second set of limiting parts limits the degrees of freedom of the two parts of the connecting device 10 in the second direction. The first direction and the second direction are mutually perpendicular.

[0026] Please refer to Figure 1 When the heart rate monitor is worn, with the connecting device 10 positioned to the side of the body, the connecting device 10 is assembled along a first direction, which is parallel to the front-back direction of the body. That is, the two parts of the connecting device 10 are pulled closer and assembled together along the front-back direction of the body. After the two parts of the connecting device 10 are magnetically engaged, a first set of limiting parts restricts the degree of freedom of the two parts of the connecting device 10 in the first direction, preventing the two parts of the connecting device 10 from moving linearly apart along the front-back direction of the body. A second limiting part restricts the degree of freedom of the two parts of the connecting device 10 in the second direction, preventing the two parts of the connecting device 10 from moving linearly apart along the left-right direction of the body.

[0027] Please refer to Figure 2When the heart rate monitor is worn, with the connecting device 10 positioned behind the body, the connecting device 10 is assembled along a first direction, which is parallel to the left-right direction of the body. That is, the two parts of the connecting device 10 are pulled closer and assembled together along the left-right direction of the body. After the two parts of the connecting device 10 are magnetically engaged, a first set of limiting parts restricts the degree of freedom of the two parts of the connecting device 10 in the first direction, preventing the two parts of the connecting device 10 from moving linearly apart along the left-right direction of the body. A second limiting part restricts the degree of freedom of the two parts of the connecting device 10 in the second direction, preventing the two parts of the connecting device 10 from moving linearly apart along the front-back direction of the body.

[0028] To ensure a more stable fit on the chest, the heart rate monitor's strap 30 has a certain elastic contraction force. This elastic contraction force binds the heart rate monitor to the chest. The contraction force generated by the strap 30 transmits a pulling force to the connecting device 10 in a direction parallel to the first direction. Therefore, the connecting device 10 is primarily subjected to force in the first direction when worn. The first set of limiting parts can limit movement in the first direction, preventing the connecting device 10 from being pulled open in that direction. The second set of limiting parts limits the freedom of the two parts of the connecting device 10 in the second direction. The second direction is the stacking direction when the connecting device is installed, and it is either the left-right or front-back direction of the human body. Since the human chest expands and contracts in both the front-back and left-right directions during breathing, the connecting device 10 is also subjected to forces generated in the front-back and left-right directions when worn. The second set of limiting parts can limit movement in the left-right or front-back directions of the human body, preventing the connecting device 10 from being bounced open or broken open in the second direction.

[0029] In the engaged state, the first direction is parallel to the line connecting one end of the restraint strap 30 and the other end of the restraint strap 30. This line refers to the line connecting the center position of one end of the restraint strap 30 and the center position of the other end of the restraint strap 30. For example... Figure 1 As shown, when worn, the first direction is parallel to the front-back direction of the human body; as Figure 2 As shown, when worn, the first direction is parallel to the left and right directions of the human body.

[0030] The two sets of limiting parts of the connecting device 10 can greatly improve the stability of the heart rate belt when worn, so that the heart rate belt has the advantages of both convenient wearing and high wearing stability.

[0031] Please refer to Figure 3 and Figure 9In some embodiments, the connecting device 10 of the heart rate monitor mainly includes a first connector 1 and a second connector 2, which are two detachable components of the connecting device 10. The first connector 1 is installed at one end of the restraint band 30 of the heart rate monitor, and the second connector 2 is installed at the other end of the restraint band 30. The first connector 1 and the second connector 2 can be connected to the restraint band 30 using the same or different connection methods. For example, the first connector 1 and the second connector 2 can be connected to the restraint band 30 using one or more connection methods such as sewing, gluing, hooking, or pivoting.

[0032] Both the first connector 1 and the second connector 2 are made of rigid materials, such as metal or rigid plastic. This design provides a stable connection limit when the first connector 1 and the second connector 2 are connected, ensuring the stability of the heart rate monitor during wear.

[0033] Please refer to Figure 3 and 4 In some embodiments, the connecting device 10 includes a fastened state and a disengaged state; in the fastened state, the first connecting member 1 and the second connecting member 2 are connected, and the connecting device 10 can form a ring structure around the heart rate belt for wearing on the human chest; in the disengaged state, the first connecting member 1 and the second connecting member 2 are separated from each other, and the heart rate belt is a strip structure, which can realize the disassembly and storage of the heart rate belt.

[0034] The first connector 1 includes a main body and a first magnetic suction part 11, a first limiting part 12, and a second limiting part 13 disposed on the main body. The first limiting part 12 and the second limiting part 13 are integrally formed with the main body. This arrangement improves the structural strength of the first limiting part 12 and the second limiting part 13, ensuring the stability of the limiting engagement. In some embodiments, the first limiting part 12 and the second limiting part 13 can also be fixed to the main body of the first connector 1 by welding or other methods.

[0035] The first magnetic part 11 is made of a magnetic material and can be fixed to the main body of the first connector 1 by means of embedding, bonding or other methods.

[0036] The second connector 2 includes a main body and a second magnetic suction part 21, a third limiting part 22, and a fourth limiting part 23 disposed on the main body. The third limiting part 22 and the fourth limiting part 23 are integrally formed with the main body. This arrangement improves the structural strength of the third limiting part 22 and the fourth limiting part 23, ensuring the stability of the limiting engagement. In some embodiments, the third limiting part 22 and the fourth limiting part 23 can also be fixed to the main body of the first connector 1 by welding or other methods.

[0037] The second magnetic part 21 is made of a magnetic material and can be fixed to the main body of the second connector 2 by means of embedding, bonding or other methods.

[0038] The first magnetic attraction part 11 and the second magnetic attraction part 21 are respectively disposed at corresponding positions, so that when the first magnetic attraction part 11 and the second magnetic attraction part 21 are brought close together, the first connector 1 and the second connector 2 can actively align and connect, thereby realizing the positioning connection between the first connector 1 and the second connector 2. Specifically, during the wearing process, when the user moves the first connector 1 and the second connector 2 close together to a general position, the first magnetic attraction part 11 and the second magnetic attraction part 21 are not completely aligned, for example, they are in a misaligned state. At this time, the first magnetic attraction part 11 and the second magnetic attraction part 21 can still generate a magnetic attraction force even in a misaligned state. Under the action of the magnetic attraction force, the first connector 1 and the second connector 2 are moved to the correct docking position. At this time, the first magnetic attraction part 11 and the second magnetic attraction part 21 are aligned, completing the positioning and locking of the first connector 1 and the second connector 2.

[0039] The first magnetic attraction part 11 is located at or near the center of the main body of the first connector 1, or multiple first magnetic attraction parts 11 are symmetrically arranged along the center of the main body of the first connector 1. Correspondingly, the second magnetic attraction part 21 is also located at or near the center of the main body of the second connector 2, or multiple second magnetic attraction parts 21 are symmetrically arranged along the center of the main body of the second connector 2. With this arrangement, when the heart rate monitor is worn, the magnetic attraction force generated by the first magnetic attraction part 11 and the second magnetic attraction part 21 is located at or near the center of the first connector 1 and the second connector 2. The magnetic attraction force can more accurately and stably drive the first connector 1 and the second connector 2 to automatically dock, avoiding the tilting problem during the automatic docking process of the first connector 1 and the second connector 2.

[0040] After the first connector 1 and the second connector 2 are assembled together, the first magnetic attraction part 11 and the second magnetic attraction part 21 are aligned along the second direction, and the first magnetic attraction part 11 and the second magnetic attraction part 21 are configured as flat structures, with the flat surfaces of the first magnetic attraction part 11 and the second magnetic attraction part 21 perpendicular to the second direction. This configuration allows for a larger mutual magnetic attraction surface between the first magnetic attraction part 11 and the second magnetic attraction part 21, increasing the magnetic attraction force formed by the first magnetic attraction part 11 and the second magnetic attraction part 21, thereby improving the stability after the first connector 1 and the second connector 2 are assembled together.

[0041] Specifically, the first magnetic attraction part 11 and the second magnetic attraction part 21 are flat magnetic blocks with opposite magnetic properties. In some embodiments, one of the first magnetic attraction part 11 and the second magnetic attraction part 21 is a flat magnetic block with magnetism, and the other is a metal structure that can be magnetically attracted. The magnetically attracted metal structure can be installed on the non-magnetic main body part, which can also realize the magnetic attraction and positioning of the first magnetic attraction part 11 and the second magnetic attraction part 21.

[0042] The first limiting part 12 and the third limiting part 22 form a first set of limiting parts. The first limiting part 12 and the third limiting part 22 are structurally complementary and have a snap-fit ​​structure. The first limiting part 12 and the third limiting part 22 are respectively arranged in corresponding positions. The second limiting part 13 and the fourth limiting part 23 form a second set of limiting parts. The second limiting part 13 and the fourth limiting part 23 are structurally complementary and have a snap-fit ​​structure. The second limiting part 13 and the fourth limiting part 23 are respectively arranged in corresponding positions. After the first connecting member 1 and the second connecting member 2 approach each other to a general connection position, the magnetic attraction force generated by the first magnetic attraction part 11 and the second magnetic attraction part 21 drives the first connecting member 1 and the second connecting member 2 to automatically move to the point where the first limiting part 12 and the third limiting part 22 form a snap-fit, and at the same time, the second limiting part 13 and the fourth limiting part 23 form a snap-fit. That is, one set of magnetic attraction parts can drive two sets of snap-fit ​​parts to form a snap-fit ​​simultaneously.

[0043] When the heart rate monitor is worn, the connecting device 10 is in a disengaged state. The first connecting member 1 and the second connecting member 2 of the connecting device 10 are aligned along a first direction. The first magnetic attraction part 11 and the second magnetic attraction part 21 approach each other and generate a magnetic attraction force. Under the action of the magnetic attraction force, the first connecting member 1 and the second connecting member 2 approach each other and complete the snap-fit ​​engagement, that is, the first limiting part 12 and the third limiting part 22 are engaged and connected, and the second limiting part 13 and the fourth limiting part 23 are engaged and connected. At least a portion of the first connecting member 1 and the second connecting member 2 are stacked along a second direction. The partial stacking arrangement of the first connecting member 1 and the second connecting member 2 allows the first connecting member 1 and the second connecting member 2 to be staggered and snap-fit, realizing the limiting of the first connecting member 1 and the second connecting member 2 in multiple directions.

[0044] After the heart rate monitor is worn, the connecting device 10 changes from a disengaged state to a fastened state. In the fastened state, the first limiting part 12 and the third limiting part 22 engage, limiting the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 along a first direction; and the second limiting part 13 and the fourth limiting part 23 engage, limiting the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 along a second direction. Specifically, limiting the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 in a certain direction means that the overall linear movement of the first connecting member 1 and the second connecting member 2 is restricted in that direction. The restricted direction does not include the rotational direction of the first connecting member 1 and the second connecting member 2, nor does it include other directions in which the first connecting member 1 and the second connecting member 2 are relatively tilted towards the first direction. Specifically, the engagement of the first limiting part 12 and the third limiting part 22 prevents the first connecting member 1 and the second connecting member 2 from moving linearly along the first direction, thus preventing them from being pulled apart by the tension of the restraint strap. The second limiting part 13 and the fourth limiting part 23 cooperate to connect, preventing the first connecting member 1 and the second connecting member 2 from moving linearly along the second direction. This prevents the first connecting member 1 and the second connecting member 2 from being squeezed or broken apart by the compressive force generated during the expansion of the human chest. With this configuration, the two sets of limiting parts can engage and limit the connecting device 10 from different directions, and limit it from the two main force directions when the connecting device 10 is worn, which can greatly improve the wearing stability of the connecting device 10 after connection.

[0045] In this embodiment, since the first connector 1 and the second connector 2 of the connecting device 10 are provided with a set of magnetic attraction parts and two sets of limiting parts, and the limiting directions of the two sets of limiting parts are different; when the heart rate belt with this structure is worn, after the first connector 1 and the second connector 2 are brought close to each other, the magnetic attraction force generated by the set of magnetic attraction parts will guide the first connector 1 and the second connector 2 to dock, so as to realize the connection of the two sets of limiting parts; so that when wearing the heart rate belt, it is only necessary to bring the first connector 1 and the second connector 2 close to each other to achieve automatic magnetic attraction connection, without the need for the user to carefully align and operate the two sets of limiting parts to snap together, which greatly facilitates the wearing of the heart rate belt; in addition, the two sets of limiting parts of the connecting device 10 can limit the degrees of freedom in the first direction and the second direction. The first direction and the second direction are the main force directions when the heart rate belt is worn, so that the connecting device is not easily squeezed and broken by the body when the heart rate belt is worn, thus improving the stability of the heart rate belt.

[0046] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments, the connecting device 10 includes a fastening state and a disengaged state. The fastening state and the disengaged state of the connecting device 10 can be switched by flipping the first connecting member 1 and the second connecting member 2 relative to each other. Specifically, the first connecting member 1 and the second connecting member 2 can be flipped around an axis parallel to a third direction to switch between the fastening state and the disengaged state. Figure 4 In the indicated direction, the second connector 2 can be switched to an engaged state by rotating clockwise relative to the first connector 1 about an axis parallel to the third direction, and can be switched to a disengaged state by rotating counterclockwise relative to the first connector 1 about an axis parallel to the third direction. In the engaged state, the first connector 1 and the second connector 2 cannot move forward or backward along the first direction; and the first connector 1 and the second connector 2 also cannot move forward or backward along the second direction, and are completely limited and fixed in the first and second directions.

[0047] During the wearing of the heart rate monitor, the connecting device 10 switches from the disengaged state to the engaged state. The first connecting piece 1 and the second connecting piece 2 are aligned and flipped to their approximate positions. The first magnetic attraction part 11 and the second magnetic attraction part 21 approach each other, generating a magnetic force that engages the first connecting piece 1 and the second connecting piece 2, forming a snap-fit. During the disassembly of the heart rate monitor, the connecting device 10 switches from the engaged state to the disengaged state. The first connecting piece 1 and the second connecting piece 2 are flipped together, simultaneously releasing the magnetic attraction of one set of magnetic attraction parts and the snap-fit ​​of the two sets of limiting parts, forming a disengaged state. Wearing and removing the heart rate monitor can both be completed in one step, making the operation convenient and efficient.

[0048] The connecting device 10 can be fastened and disassembled by flipping. The direction of the driving force for flipping is different from the main force direction of the connecting device 10, so that the connecting device 10 will not be accidentally loosened when worn normally, thus ensuring the stability of wearing the connecting device 10.

[0049] The first connector 1 and the second connector 2 can be flipped around an axis parallel to a third direction to switch between an engaged state and a disengaged state. The third direction is perpendicular to both the first and second directions, as shown below. Figure 1 and Figure 2 In the direction shown, the third direction is parallel to the vertical direction of the human body. With this configuration, the axis of rotation of the first connector 1 and the second connector 2 is the vertical axis when worn. When the user's hand moves to the side or back of the body, the relative rotation between the first connector 1 and the second connector 2 can be easily operated, and one-handed operation is also possible.

[0050] Specifically, during the wearing process, on a surface perpendicular to a third direction, firstly, place the first connector 1 and the second connector 2 in a V-shape, with the first connector 1 and the second connector 2 tilted relative to each other. Under the action of a set of magnetic attraction, the first connector 1 and the second connector 2 move closer to each other and flip to fasten together, with the first connector 1 and the second connector 2 stacked to form a straight structure. During this operation, the user can tilt only one of the first connector 1 and the second connector 2, or tilt both of them simultaneously. During the disassembly process, by holding down one of the first connector 1 and the second connector 2, using the held-down one as a fulcrum, and then flipping the other of the first connector 1 and the second connector 2, the first connector 1 and the second connector 2 can be flipped and separated. This operation can be performed with both hands or one hand.

[0051] Please refer to Figures 6 to 8 In some embodiments, the mating connection of the first limiting part 12 and the third limiting part 22 is used to limit the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 along the first direction. One of the first limiting part 12 and the third limiting part 22 is a first groove, and the other is a first protrusion. For example, the first limiting part 12 is a first groove, and the third limiting part 22 is a first protrusion. The first groove and the first protrusion are structurally complementary and mutually adaptable. The opening of the first groove is parallel to the second direction, and the orientation of the first protrusion is opposite to that of the first groove. During installation, the first protrusion is inserted into the first groove. In the first direction, the two sides of the first protrusion correspond to the two sides of the first groove, respectively, to form positive and negative limiting in the first direction.

[0052] Specifically, the first groove includes a first sidewall 121 and a second sidewall 122 opposite to each other in the first direction, and the first protrusion includes a third sidewall 221 and a fourth sidewall 222 opposite to each other in the first direction. When the first connector 1 and the second connector 2 are engaged, the first sidewall 121 abuts against the third sidewall 221, and the second sidewall 122 abuts against the fourth sidewall 222. The abutment of the two sets of sidewalls can limit the degrees of freedom of the first connector 1 and the second connector 2 to move in the forward and reverse directions in the first direction.

[0053] Please refer to Figure 6In some embodiments, the first limiting part 12 and the third limiting part 22 can be configured as irregular structures, that is, the first groove and the first protrusion can be configured as irregular structures to increase the limiting surface and the limiting direction; for example, on the surface perpendicular to the second direction, the first groove and the first protrusion can be T-shaped structures, the second sidewall 122 of the first groove is divided into two spaced parts, and the corresponding fourth sidewall 222 of the first protrusion is also divided into two spaced parts. With this configuration, the first groove and the first protrusion can not only achieve limiting in the first direction, but the T-shaped first groove can also form an avoidance opening, allowing the first connector 1 and the second connector 2 to form more structural parts of overlapping and snap-fit, reducing the volume of the connecting device 10 after it is fastened.

[0054] Please refer to Figures 6 to 8 In some embodiments, the cooperating connection of the second limiting part 13 and the fourth limiting part 23 is used to limit the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 in the second direction. One of the second limiting part 13 and the fourth limiting part 23 is a slot, and the other is a latch; for example, the second limiting part 13 is a slot, and the fourth limiting part 23 is a latch. The slot and the latch are structurally complementary and mutually adaptable. The opening of the slot is parallel to the first direction, and the opening of the latch is opposite to the slot. During installation, the latch is engaged in the slot. In the second direction, the length of the latch is equal to or slightly less than the length of the slot. The two sides of the latch correspond one-to-one with the two sides of the slot or have a small gap, forming positive and negative limiting in the second direction.

[0055] The volume of the slot and the buckle is smaller than the volume of the first groove and the first protrusion. The slot can be set on the first side wall 121 of the first groove, and the buckle can be set on the third side wall 221 of the first protrusion. During the snap-fit ​​installation, the first connector 1 and the second connector 2 are inclined relative to each other. First, the part of the buckle is inserted into the slot, and then the entire buckle is inserted into the slot by magnetic attraction. At the same time, the first protrusion is snapped into the first groove. This arrangement allows the two sets of limiting parts to snap together and separate simultaneously, which is convenient for operation. Furthermore, the two sets of limiting parts are integrated into one area, which can reduce the space occupied and realize the miniaturization of the connecting device 10.

[0056] In some embodiments, the slot may be located at the bottom or near the bottom of the first sidewall 121 of the first groove, and the corresponding buckle may be located at the corresponding position. This arrangement allows the limiting structure formed by the small-volume slot and buckle to be located inside the connecting device 10, which helps to ensure the stability of the slot and buckle limiting, and allows the buckle to serve as a fulcrum for flipping and locking, facilitating the locking and unlocking operations of the connecting device 10.

[0057] In some embodiments, the mating connection of the second limiting part 13 and the fourth limiting part 23 can also be used to limit the degree of freedom of the first connecting member 1 and the second connecting member 2 along a third direction. The second limiting part 13 and the fourth limiting part 23 have the same length in the third direction, so that after the second limiting part 13 and the fourth limiting part 23 are mated, they can also limit the degrees of freedom of the first connecting member 1 and the second connecting member 2 in both the positive and negative directions along the third direction.

[0058] In some embodiments, the first groove and the first protrusion can be configured with a large volume. For example, in the third direction, the two sides of the first groove extend to the two sides of the first connector 1, and correspondingly, the two sides of the first protrusion extend to the two sides of the second connector 2. This configuration increases the contact surface between the first groove and the first protrusion, which helps to improve the stability of the connecting device 10 in the engaged state.

[0059] In some embodiments, the first magnetic attraction part 11 is disposed on the first limiting part 12, for example, the first magnetic attraction part 11 is disposed on the bottom surface of the first groove; the second magnetic attraction part 21 is disposed on the third limiting part 22, for example, the second magnetic attraction part 21 is disposed on the bottom surface of the first protrusion, and when stacked, the bottom surface of the first protrusion is located in the first groove and faces the first connector 1.

[0060] In the engaged state, the first magnetic suction part 11 and the second magnetic suction part 21 are located in the first groove and the first protrusion, respectively. This arrangement positions the first magnetic suction part 11 and the second magnetic suction part 21 at the center of the two sets of limiting parts, allowing the magnetic attraction generated by their proximity to drive the two sets of limiting parts to engage. Furthermore, the first magnetic suction part 11 and the second magnetic suction part 21 are concealed, making the structure of the first connector 1 and the second connector 2 more compact.

[0061] The first magnetic attraction part 11 and the second magnetic attraction part 21 can also be disposed in other positions and can be formed in other structures, and can also realize the magnetic snap-fit ​​of the first connector 1 and the second connector 2. For example, the first magnetic attraction part 11 and the second magnetic attraction part 21 each include a plurality of disc-shaped magnetic attraction blocks, and the plurality of disc-shaped magnetic attraction blocks are arranged in an array on the main body of the first connector 1 and the second connector 2.

[0062] Please refer to Figure 4 In some embodiments, the first magnetic attraction part 11 is embedded in the bottom surface of the first groove. The first magnetic attraction part 11 may be flush with the bottom surface of the first groove, or the entire first magnetic attraction part 11 may be sunk into the bottom surface of the first groove. A pad or other shielding and fixing structure is provided above the first magnetic attraction part 11. Correspondingly, the second magnetic attraction part 21 is embedded in the bottom surface of the first protrusion. The second magnetic attraction part 21 may be flush with the bottom surface of the first protrusion, or the entire second magnetic attraction part 21 may be sunk into the bottom surface of the first protrusion. A pad or other shielding and fixing structure is provided above the second magnetic attraction part 21.

[0063] Please refer to Figure 6 In some embodiments, the second sidewall 122 of the first groove is a first inclined surface, and the fourth sidewall 222 of the first protrusion is a second inclined surface. The first and second inclined surfaces are configured as complementary and adaptable inclined surfaces, such that the first groove forms an inverted trapezoidal structure on a surface perpendicular to the second direction. The opening area on the first groove is larger than the area of ​​the bottom surface of the first groove, that is, the distance between the upper end of the first inclined surface and the first sidewall 121 is greater than the distance between the lower end of the first inclined surface and the first sidewall 121. This configuration allows the first protrusion of the second connector 2 to rotate around an axis parallel to the third direction and engage with the first groove.

[0064] Please refer to Figure 4 , Figure 7 and Figure 8 In some embodiments, the connecting device 10 further includes a third set of limiting portions, where one of the first groove and the first protrusion is provided with a second groove 223, and the other of the first groove and the first protrusion is provided with a second protrusion 123. For example, the second groove 223 is provided on the bottom surface of the first protrusion, and the second protrusion 123 is provided on the bottom surface of the first groove. In the engaged state of the connecting device 10, the second protrusion 123 is engaged in the second groove 223, and the second protrusion 123 and the second groove 223 form a snap-fit ​​structure to limit the degree of freedom of the first connecting member 1 and the second connecting member 2 to move in the forward and reverse directions along the first direction. With this configuration, the second protrusion 123 and the second groove 223 can assist the first protrusion and the first groove in limiting the movement, especially when the first protrusion and the first groove are provided with inclined surfaces, thus strengthening the limitation of the degree of freedom of the first connecting member 1 and the second connecting member 2 to move linearly along the first direction.

[0065] Please refer to Figure 6 In some embodiments, the first connector 1 further includes a flipping operation part 14, which is disposed on the top surface of the main body of the first connector 1. The top surface of the first connector 1 is a surface with a first groove, and the first protrusion of the second connector 2 is inserted into the first groove from the top surface of the first connector 1. The flipping operation part 14 can be a cylindrical or disc structure protruding from the main body of the first connector 1. In the fastened state, the flipping operation part 14 protrudes from the top surface of the second connector 2; and in the first direction, the flipping operation part 14 is disposed away from the second limiting part 13. This configuration allows the flipping operation part 14 to serve as a component pressed by the user during flipping, making it easier for the user to operate the first connector 1 and the second connector 2 to flip each other to unfasten and form a separated state.

[0066] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments, the first connector 1 is provided with a first restraint strap connection portion 15, and the second connector 2 is provided with a second restraint strap connection portion 24. The first restraint strap connection portion 15 and the second restraint strap connection portion 24 are located at a distance from each other. The first restraint strap connection portion 15 is used to connect to one end of the restraint strap 30 of the heart rate monitor, and the second restraint strap connection portion 24 is used to connect to the other end of the restraint strap 30 of the heart rate monitor.

[0067] The first binding strap connecting part 15 and the second binding strap connecting part 24 can be a structure such as a strip hole, so that the binding strap 30 can be threaded through and used to bind the first connecting member 1 and the second connecting member 2.

[0068] Please refer to Figures 9 to 15 In some embodiments, the connecting device 10 includes a fastened state, a partially fastened state, and a disengaged state.

[0069] The connecting device 10 can switch between a fastened state, a partially fastened state, and a disengaged state by the linear movement and rotation of the first connecting member 1 and the second connecting member 2 relative to each other. Specifically, the fastened state and the partially fastened state are switched by the linear movement of the first connecting member 1 and the second connecting member 2 along a first direction, and the partially fastened state and the disengaged state are switched by the rotation of the first connecting member 1 and the second connecting member 2 around an axis parallel to the first direction.

[0070] Please refer to Figure 14 In the semi-engaged state, the first connector 1 and the second connector 2 can move away from each other along the first direction; the first magnetic attraction part 11 and the second magnetic attraction part 21 are magnetically attracted to each other in a staggered manner, and the second limiting part 13 and the fourth limiting part 23 are separated.

[0071] Please refer to Figure 15 In the fastened state, the first connector 1 and the second connector 2 can no longer move away from each other along the first direction. The second limiting part 13 and the fourth limiting part 23 form a mating connection. There is a gap between the first connector 1 and the second connector 2 caused by moving away from each other along the first direction. The setting of this gap can enable the first connector 1 and the second connector 2 to move along the first direction until the second limiting part 13 and the fourth limiting part 23 separate, so as to switch to the half-fastened state. Furthermore, after the first connector 1 and the second connector 2 move along the first direction to the maximum position of the gap, they can no longer move, so as to ensure that in the wearing state, the first connector 1 and the second connector 2 will not move too much in the opposite direction along the first direction and thus detach as a whole.

[0072] The engagement and disengagement of this connecting device 10 are both divided into two steps: The first step of the fastening process is as follows: First, along the first direction, pull the first connector 1 and the second connector 2 close to each other until they are stacked. Then, rotate the first connector 1 and the second connector 2 around an axis parallel to the first direction until they are partially stacked. This step can be completed by the user in one step in three-dimensional space. At this time, the first limiting part 12 and the third limiting part 22 are connected, but the freedom of the first connector 1 and the second connector 2 to move linearly along the first direction is not limited, especially the freedom of the first connector 1 and the second connector 2 to move away from each other in the opposite direction of the first direction is not limited. At this time, the first magnetic attraction part 11 and the second magnetic attraction part 21 are magnetically attracted in a misaligned manner, and the second limiting part 13 and the fourth limiting part 23 are separated. The misaligned attraction of the first magnetic attraction part 11 and the second magnetic attraction part 21 means that the first magnetic attraction part 11 and the second magnetic attraction part 21 only partially overlap and attract each other in the second direction, generating a relatively small magnetic attraction force, which is sufficient to drive the first connector 1 and the second connector 2 to automatically form a snap-fit. The second step of the fastening process involves pushing the first connector 1 and the second connector 2 away from each other in the opposite direction of the first direction, causing the second limiting part 13 and the fourth limiting part 23 to form a mating connection, thus completing the fastening operation. At this time, the degree of freedom of the first connector 1 and the second connector 2 to move linearly in the second direction is limited, and the first magnetic attraction part 11 and the second magnetic attraction part 21 are aligned to generate the maximum magnetic attraction force.

[0073] The first step of separation: Pushing the first connector 1 and the second connector 2 closer together along the first direction causes the second limiting part 13 to separate from the fourth limiting part 23. At this point, the freedom of the first connector 1 and the second connector 2 to move linearly along the second direction is released, and the first magnetic attraction part 11 and the second magnetic attraction part 21 are misaligned and attracted; and the first limiting part 12 and the third limiting part 22 abut against each other to their limit positions, preventing the first connector 1 and the second connector 2 from continuing to move away from each other along the first direction. The second step of separation: the first connector 1 and the second connector 2 are flipped around an axis parallel to the first direction, and the first connector 1 and the second connector 2 are tilted to each other to form separation; at this time, the first limiting part 12 and the third limiting part 22 are separated, and the first magnetic suction part 11 and the second magnetic suction part 21 are separated, completing the separation operation.

[0074] In this embodiment, the two-step operation for fastening and disengaging is relatively simple and efficient, and can form a relatively stable fastening connection, ensuring the stability of the heart rate belt.

[0075] Please refer to Figure 13 and Figure 14In the semi-fastened state, the first connecting member 1 and the second connecting member 2 move closer to each other along the first direction to their extreme positions; in the fastened state, the first connecting member 1 and the second connecting member 2 move further apart from each other along the first direction to their extreme positions. With this configuration, when worn, the restraint strap 30 applies a pulling force to the first connecting member 1 and the second connecting member 2, driving them further apart along the first direction. This allows the tension of the restraint strap 30 to further keep the connecting device 10 in the fastened state, improving the stability of the fastened state.

[0076] Please refer to Figure 10 , Figure 11 and Figure 12 In some embodiments, one of the first limiting part 12 and the third limiting part 22 is a first groove, and the other is a first protrusion. For example, the first limiting part 12 is a first groove, and the third limiting part 22 is a first protrusion. In the first direction, the width of the first groove is greater than the width of the first protrusion, so that the first protrusion, while installed in the first groove, can also move along the first direction to achieve switching between a half-engaged state and an engaged state.

[0077] In the third direction, the length of the first groove is slightly greater than the length of the first protrusion, creating a hinged gap between the first protrusion and the sidewall of the first groove to allow switching between a semi-engaged and disengaged state. This gap is small enough that the first connector 1 and the second connector 2 cannot move linearly along the third direction. Alternatively, in the third direction, the length of the first groove is equal to the length of the first protrusion, and the two sidewalls of the first protrusion in the third direction are set as arc-shaped sidewalls, which can also achieve switching between a semi-engaged and disengaged state and prevent the first connector 1 and the second connector 2 from moving linearly along the third direction.

[0078] Please refer to Figure 11 and Figure 12 In some embodiments, the first groove and the first protrusion can be configured as irregular shapes to increase the limiting surface and the limiting direction; for example, on a surface perpendicular to the second direction, the first groove and the first protrusion can be trapezoidal structures, with the smaller end of the trapezoidal structure located at the end where the first connector 1 and the second connector 2 are close to each other. With this configuration, the first groove and the first protrusion can not only achieve limiting in the first direction but also limiting in the third direction; the trapezoidal structure can also form two inclined guide surfaces to guide the first connector 1 and the second connector 2 to move along the first direction during the switching between the half-engaged state and the engaged state, improving the accuracy of the engagement.

[0079] Please refer to Figure 13In some embodiments, specifically, the first groove includes a first sidewall 121 and a second sidewall 122 opposite to each other along a first direction, and the first protrusion includes a third sidewall 221 and a fourth sidewall 222 opposite to each other along the first direction. In the engaged state, the first sidewall 121 and the third sidewall 221 are separated from each other, and the second sidewall 122 and the fourth sidewall 222 abut against each other; in the partially engaged state, the first sidewall 121 and the third sidewall 221 abut against each other, and the second sidewall 122 and the fourth sidewall 222 are separated from each other.

[0080] Please refer to Figure 12 In some embodiments, the cooperating connection of the second limiting part 13 and the fourth limiting part 23 is used to limit the degree of freedom of linear movement between the first connecting member 1 and the second connecting member 2 along the second direction. One of the second limiting part 13 and the fourth limiting part 23 is a slot, and the other is a latch; for example, the second limiting part 13 is a slot, and the fourth limiting part 23 is a latch. The slot and the latch are structurally complementary and mutually adaptable. The opening of the slot is parallel to the first direction, and the opening of the latch is opposite to the slot. During installation, the latch is engaged in the slot, and in the second direction, the two sides of the latch correspond to the two sides of the slot, respectively, to form forward and reverse limiting in the second direction.

[0081] The volume of the slot and the buckle is smaller than the volume of the first groove and the first protrusion. The slot can be disposed on the second side wall 122 of the first groove, and the buckle can be disposed on the fourth side wall 222 of the first protrusion. In the engaged state, the second side wall 122 abuts against the fourth side wall 222, and the buckle is inserted into the slot to form a mating connection. This arrangement allows the two sets of limiting parts to engage and disengage simultaneously, facilitating operation; furthermore, integrating the two sets of limiting parts into one area reduces the space occupied and achieves miniaturization of the connecting device 10.

[0082] Please refer to Figure 11 In some embodiments, the slot can be located at the bottom or near the bottom of the second sidewall 122 of the first groove, and the corresponding buckle is located at the corresponding position. This arrangement allows the limiting structure formed by the small-volume slot and buckle to be located inside the connecting device 10, which helps to ensure the stability of the slot and buckle limiting, and allows the buckle to serve as a fulcrum for flipping and locking and separating, facilitating the locking and separating operations of the connecting device 10.

[0083] In some embodiments, the first magnetic attraction part 11 and the second magnetic attraction part 21 are flat magnetic blocks with opposite magnetic properties. The two first magnetic attraction parts 11 can be disposed on the outside of the first groove and located on both sides of the first groove in a third direction; correspondingly, the two second magnetic attraction parts 21 can be disposed on both sides of the first protrusion in a third direction. The first magnetic attraction parts 11 and the second magnetic attraction parts 21 can also be disposed in other positions or configured in other ways, for example, the first magnetic attraction part 11 can be disposed at the bottom of the first groove and the second magnetic attraction part 21 can be disposed at the bottom of the first protrusion.

[0084] Please refer to Figure 1 , Figure 2 and Figure 16 In some embodiments, a heart rate belt is provided, which includes a monitoring device 20, a restraint strap 30, and a connecting device 10 in any of the above embodiments.

[0085] The monitoring device 20 is installed on the restraint strap 30. The monitoring device 20 can be positioned on the restraint strap 30 as needed. For example, the monitoring device 20 can be positioned near one end of the restraint strap 30, so that when worn, the monitoring device 20 is located at the heart position on the chest, while the connecting device 10 is located on the side or back of the body.

[0086] The restraint strap 30 can be a one-piece structure, with the monitoring device 20 fixed to one side of the middle of the restraint strap 30 by binding or adhesive; or, the restraint strap 30 can include two straps, which are installed on both sides of the monitoring device 20, similar to the connection method of a watch strap.

[0087] The monitoring device 20 is used to detect human heart rate and generate a corresponding heart rate signal. The monitoring device 20 also includes a wired or wireless communication module to transmit the detected heart rate signal to a terminal device. The monitoring device 20 may also contain necessary components such as a battery and a circuit board for realizing electrocardiogram measurement.

[0088] The restraint strap 30 can be an elastic elastic strap. The elasticity of the restraint strap 30 can stably restrain the heart rate monitor on the human body, ensuring the stability of the measurement, especially the stability of the measurement during human exercise.

[0089] The first connector 1 is installed at one end of the restraint strap 30, and the second connector 2 is installed at the other end of the restraint strap 30. The first connector 1 and the second connector 2 can be switched between fastening and disengaging to enable the wearing and removal of the heart rate monitor.

[0090] This heart rate belt includes a connecting device 10 as described in any of the above embodiments. Since the connecting device 10 has a set of magnetic attraction parts and two sets of limiting parts between the first connecting member 1 and the second connecting member 2, and the limiting directions of the two sets of limiting parts are different, when wearing this heart rate belt, after bringing the first connecting member 1 and the second connecting member 2 close together, the magnetic attraction force generated by the set of magnetic attraction parts will guide the first connecting member 1 and the second connecting member 2 to align, thereby achieving the connection of the two sets of limiting parts. This allows for automatic magnetic connection by simply bringing the first connecting member 1 and the second connecting member 2 approximately close together when wearing the heart rate belt, eliminating the need for the user to carefully align the limiting parts, greatly facilitating the wearing of the heart rate belt. Furthermore, the two sets of limiting parts of the connecting device 10 can limit the degrees of freedom in the docking direction and the stacking direction. The docking direction and the stacking direction are the main force directions when the heart rate belt is worn, making it less likely for the connecting device to break apart due to body pressure when the heart rate belt is worn, thus improving the stability of the heart rate belt.

[0091] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A connecting device for a heart rate monitor, characterized in that, The device includes a first connector and a second connector. The first connector is used to be installed at one end of the strap of the heart rate monitor, and the first connector has a first magnetic attraction part, a first limiting part, and a second limiting part. The second connector is used to be installed at the other end of the strap of the heart rate monitor, and the second connector has a second magnetic attraction part, a third limiting part, and a fourth limiting part. The connecting device includes at least a fastened state. In the fastened state, the first connector and the second connector are aligned along a first direction, and at least a portion of the first connector and the second connector are stacked along a second direction. The first magnetic attraction part and the second magnetic attraction part are magnetically attracted to each other. The first limiting part and the third limiting part cooperate to limit the degree of freedom of linear movement of the first connector and the second connector relative to each other along the first direction. The second limiting part and the fourth limiting part cooperate to limit the degree of freedom of linear movement of the first connector and the second connector relative to each other along the second direction. In the fastened state, the first direction is parallel to the line connecting one end of the strap and the other end of the strap, and the first direction and the second direction are perpendicular.

2. The connecting device for the heart rate monitor as described in claim 1, characterized in that, The connecting device also includes a disengaged state, wherein the first connector and the second connector can be flipped around an axis parallel to a third direction to switch between the engaged state and the disengaged state, and the third direction is perpendicular to the first direction and the second direction.

3. The connecting device for the heart rate monitor as described in claim 2, characterized in that, One of the second limiting part and the fourth limiting part is a slot and the other is a buckle. The opening of the slot is parallel to the first direction, and the buckle can be flipped around an axis parallel to the third direction to engage with and disengage from the slot.

4. The connecting device for the heart rate monitor as described in claim 3, characterized in that, One of the first limiting part and the third limiting part is a first groove, and the other is a first protrusion. The opening of the first groove is parallel to the second direction, and the first protrusion can be engaged with and disengaged from the first groove. The slot is located on the side wall of the first groove, and the buckle is located on the side wall of the first protrusion. On the plane perpendicular to the second direction, the first groove and the first protrusion have a T-shaped structure. And / or, one of the first magnetic attraction part and the second magnetic attraction part is located in the first groove, and the other is located on the first protrusion.

5. The connecting device for the heart rate monitor as described in claim 4, characterized in that, The first groove includes a first sidewall and a second sidewall opposite to each other along the first direction. The slot is located on the first sidewall, and the second sidewall is configured as a first inclined surface. The distance between the upper end of the first inclined surface and the first sidewall is greater than the distance between the lower end of the first inclined surface and the first sidewall. The first protrusion includes a third sidewall and a fourth sidewall opposite to each other along the first direction. The buckle is located on the third sidewall, and the fourth sidewall is a second inclined surface adapted to the second sidewall. Alternatively, one of the first groove and the first protrusion is provided with a second groove, and the other is provided with a second protrusion. The second groove and the second protrusion are connected to limit the degree of freedom of the first connector and the second connector to move linearly along the first direction.

6. The connecting device for the heart rate monitor as described in claim 4, characterized in that, The first connector further includes a flipping operation part, which protrudes from the second connector in the snap-fit ​​state and in the second direction.

7. The connecting device for the heart rate monitor as described in claim 1, characterized in that, The connecting device also includes a semi-engaged state, in which the first connecting member and the second connecting member move relative to each other along the first direction, and the engaged state and the semi-engaged state can be switched; in the semi-engaged state, the first magnetic attraction part and the second magnetic attraction part are magnetically attracted, the first limiting part and the third limiting part are connected to each other, limiting the degree of freedom of the first connecting member and the second connecting member to move closer to each other along the first direction, and the second limiting part and the fourth limiting part are separated.

8. The connecting device for the heart rate monitor as described in claim 7, characterized in that, The connecting device also includes a disengaged state, wherein the first connector and the second connector can be rotated about an axis parallel to the first direction to switch between the semi-engaged state and the disengaged state.

9. The connecting device for the heart rate monitor as described in claim 8, characterized in that, One of the second limiting part and the fourth limiting part is a slot and the other is a buckle. The opening of the slot is parallel to the first direction, and the buckle can move in a straight line parallel to the first direction to engage with and disengage from the slot.

10. The connecting device for the heart rate monitor as described in claim 9, characterized in that, One of the first limiting part and the third limiting part is a first groove and the other is a first protrusion. The opening of the first groove is parallel to the second direction, and the first protrusion can be engaged and disengaged from the first groove along the second direction. The slot is located on the side wall of the first groove, and the buckle is located on the side wall of the first protrusion.

11. The connecting device for the heart rate monitor as described in claim 10, characterized in that, In the first direction, the width of the first groove is greater than the width of the first protrusion; and / or, in the third direction, the length of the first groove is greater than the length of the first protrusion, the third direction being perpendicular to the first direction and the second direction.

12. A heart rate monitor, characterized in that, The device includes a monitoring device, a restraint strap, and a connection device for the heart rate strap as described in any one of claims 1 to 11, wherein the monitoring device is used to monitor human heart rate and generate a corresponding heart rate signal, the first connector is installed at one end of the restraint strap, and the second connector is installed at the other end of the restraint strap.

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