Modularized wrist guard device with hyperthermia function

Abstract

This invention provides a modular wristband device with thermotherapy function, belonging to the field of physiotherapy device technology. It includes a wristband, a main controller, a fixed shell, a heat-conducting medium layer, a thermotherapy module, a snap-fit ​​assembly, a one-way locking mechanism, a contact part, and a safety connection module. The thermotherapy module is one of far-infrared heat therapy, moxibustion, or medium-based heat transfer modules, which users can select as needed. The connection to the fixed shell is achieved through an innovative snap-fit ​​assembly and one-way locking mechanism. A rotating shaft drives multiple cams to rotate, switching the connection state from elastic snap-fit ​​to mechanical locking. Only after complete locking is the power supply and communication line between the micro-control unit inside the module shell and the main controller connected, forming a safety logic of structural locking followed by electrical connection. This achieves a unified approach of safety interlocking, functional modularity, and intelligent control, significantly improving the safety, convenience, and efficacy of home thermotherapy devices.

Description

Technical Field

[0001] This invention relates to the field of physiotherapy device technology, and in particular to a modular wristband device with thermotherapy function. Background Technology

[0002] A heat therapy wristband is a device worn on the wrist that applies controlled heat to the affected area to relieve pain, promote blood circulation, and relax muscles. The heat source can take various forms, commonly including electric heating wires or far-infrared radiation. These devices are primarily designed for common wrist discomforts such as chronic wrist arthritis, tenosynovitis, and soft tissue strain.

[0003] However, existing thermotherapy wristband products generally have the following limitations: First, they are limited in function, with each product typically offering only one thermotherapy mode (such as constant temperature heating or far-infrared), making it difficult for users to flexibly select and switch according to specific symptoms; second, in terms of connection structure, the wristband body and heating module are either fixedly connected in a non-detachable manner, allowing only a single thermotherapy mode, or they use simple plug-in or adhesive methods, which are not secure enough and are prone to loosening or falling off during daily activities, affecting the continuity and stability of thermotherapy. Summary of the Invention

[0004] The purpose of this invention is to provide a modular wristband device with a thermotherapy function. It achieves multi-functional selection through replaceable thermotherapy modules and ensures safe use by using a structural plug-in locking design to control electrical connection.

[0005] The purpose of this invention is achieved through the following technical solution: a modular wristband device with thermotherapy function, comprising a wristband, a main controller, a fixed shell, a thermotherapy module, a snap-fit ​​assembly, a one-way locking mechanism, and a contact part; the fixed shell includes a fixed shell, the inner bottom of the main controller and the fixed shell are flexibly connected to the wristband, and the top of the side wall of the fixed shell is symmetrically provided with snap-fit ​​grooves.

[0006] The thermotherapy module is detachably connected to the solid shell and is one of the far-infrared hot compress module, the moxibustion module and the medium heat transmission module. It includes a module shell and a heat conduction layer. The heat conduction layer is fixed at the bottom of the module shell and the thermotherapy functional unit is provided at the lower inner end of the module shell.

[0007] The thermotherapy functional unit is a planar far-infrared heating element, a point-shaped high-temperature heating element, or a medium-activated heating element; the heat conduction layer is a thermally conductive silicone pad, a phase change material encapsulation sheet, or a stainless steel heat conduction plate corresponding to the thermotherapy functional unit.

[0008] The snap-fit ​​assembly includes a multi-position operating hole and a multi-position cam. The one-way locking mechanism includes a ratchet. The contact part includes a conductive cam. Snap-fit ​​sliders are slidably connected laterally outward on both sides of the main body of the module housing. The multi-position operating hole is opened in the middle of the main body of the snap-fit ​​slider. Rotating shafts are vertically screwed onto both sides of the main body of the module housing. The multi-position cam is fixed in the middle of the rotating shaft and located inside the multi-position operating hole. The ratchet is fixed to the upper part of the rotating shaft. A pawl is fitted on one side of the ratchet. The pawl is screwed into the main body of the module housing under the action of elastic torque. The conductive cam and the multi-position cam have the same eccentric direction and are insulated and fixedly connected.

[0009] The combination of multiple cams and multiple operating holes can form three states: the snap-fit ​​slider moves freely, the snap-fit ​​slider is locked in the snap-fit ​​groove, and the snap-fit ​​slider is retracted. Only after the snap-fit ​​slider is locked in the snap-fit ​​groove will the main controller be connected to the thermotherapy module through the conductive cam.

[0010] The technical solution of this invention is used as follows:

[0011] To wear and prepare the device, the user puts the wristband on their wrist. The main controller and the solid housing are flexibly connected to the wristband. At this time, the heat therapy module has not yet been installed.

[0012] Module installation and locking: The user pushes the selected thermotherapy module into the solid shell in the correct direction. During the pushing process, the locking sliders on both sides of the module shell are squeezed and retract inward.

[0013] At this time, the multi-position cam and the multi-position operating hole are in the first state of engagement, and the locking slider can move freely.

[0014] When the thermotherapy module reaches the end of its travel, the locking slider pops outward under its own elasticity, and its head locks into the locking groove on the side wall of the solid shell, completing the initial locking.

[0015] The outer end of the rotating shaft, with the cooperation of the pawl and the ratchet, can not only achieve unidirectional rotation of the rotating shaft, but also maintain its rotational position.

[0016] When the rotating shaft drives the eccentric end of the multi-position cam to abut against the outer side of the multi-position operating hole, it can lock the snap-fit ​​slider in the snap-fit ​​position with the snap-fit ​​groove, so that the snap-fit ​​state between the snap-fit ​​slider and the snap-fit ​​groove changes from elastic snap-fit ​​to locked snap-fit.

[0017] After the thermotherapy module establishes a secure connection with the solid shell, the thermotherapy module can be connected to the main controller by rotating the conductive cam into position. The main controller can identify the specific type of the connected thermotherapy functional unit (far-infrared / moxibustion / medium) and output precise drive power to the thermotherapy functional unit, thus activating the thermotherapy function.

[0018] The heat generated by the thermotherapy functional unit, which consists of a planar far-infrared heating element, a point-shaped high-temperature heating element, or a medium-activated heating element, is transferred downwards to the heat conduction layer formed by the corresponding thermally conductive silicone pad, phase change material encapsulation sheet, or stainless steel heat conduction plate. A soft thermally conductive medium is provided between the inner side of the heat conduction layer and the skin of the wrist, which can adhere closely to the heat conduction layer. The duration of the thermotherapy can be controlled by the main controller.

[0019] After the heat therapy is completed, the heat therapy module is disassembled. The user rotates the rotating shaft, which drives the multi-position cam to rotate to the third state. The eccentric end of the multi-position cam abuts against the inner side of the multi-position operating hole, pushing the locking slider inward and making it completely disengage from the locking groove. The locking slider and the locking groove are released, and the connection between the main controller and the heat therapy module is disconnected. The user can then remove the heat therapy module.

[0020] By continuing to rotate the rotating shaft, the multi-position cam can be rotated to the first state, the locking slider is reset under the action of elasticity, and the device returns to the initial ready state. The wristband can be removed from the wrist or other functional heat therapy modules can be installed.

[0021] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0022] (1) This invention achieves multifunctional integration through replaceable thermotherapy modules. Each module optimizes the core components for specific therapies. For example, the far-infrared module uses a planar far-infrared heating element in combination with a thermally conductive silicone pad to achieve uniform heat application; the moxibustion module uses a point-like high-temperature heating element combined with a phase change material encapsulation sheet to achieve constant temperature moxibustion; the medium module uses a stainless steel heat-conducting plate to promote drug heat penetration; the main controller can automatically identify the module type and match the operating parameters, so that the same device can provide a variety of professional thermotherapy solutions.

[0023] (2) The present invention achieves the initial fixation of the thermotherapy module through the cooperation of the snap-fit ​​slider and the snap-fit ​​groove. The rotating shaft can drive the multi-position cam to change the connection state from elastic snap-fit ​​to safe locking, and the ratchet and pawl cooperation prevents accidental loosening. At the same time, the circuit between the main controller and the thermotherapy module is only connected after the thermotherapy module is safely locked, and the multi-position cam is automatically de-energized when it rotates to the disassembly position. This specific structure realizes the logic of locking before powering on and de-energizing before unlocking, which fundamentally eliminates the risk of live operation and ensures the inherent safety of operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the wristband and the housing portion of the present invention;

[0027] Figure 3 This is a schematic diagram of the card slot and safety connection module of the present invention;

[0028] Figure 4 This is a schematic diagram showing the positions of the thermotherapy module and the heat-conducting medium layer of the present invention;

[0029] Figure 5 This is a schematic diagram of the thermotherapy module of the present invention;

[0030] Figure 6 This is a schematic diagram of the snap-fit ​​assembly, one-way locking mechanism, and contact portion of the present invention;

[0031] Figure 7 This is a schematic diagram of the conductive cam portion of the present invention;

[0032] Figure 8 This is a schematic diagram of the snap-fit ​​component of the present invention;

[0033] Figure 9 This is a schematic diagram showing the three states of the multi-position cam of the present invention;

[0034] Figure 10 This is a schematic diagram of the installation of the one-way locking mechanism of the present invention;

[0035] Figure 11 This is a schematic diagram of the one-way locking mechanism of the present invention;

[0036] Figure 12 This is a schematic diagram of the electrical control connection of the present invention.

[0037] Figure label:

[0038] 1. Wristband; 2. Main controller; 3. Solid shell; 4. Thermal conductive medium layer; 5. Hyperthermia module; 6. Snap-fit ​​assembly; 7. One-way locking mechanism; 8. Contact part; 9. Safety connection module; 301. Silicone sleeve; 302. Solid shell; 303. Snap-fit ​​groove; 304. Guide slope; 501. Module shell; 502. Outer cover plate; 503. Heat conduction layer; 504. Inner layer plate; 505. Hyperthermia functional unit; 506. Temperature sensor; 507. Boss; 508. Built-in control unit; 601. Snap-fit ​​slide groove; 602. Snap-fit ​​slider; 603. First receiving groove; 604. Pressure... Spring; 605, Rotating shaft seat; 606, Rotating shaft; 607, Tightening wheel; 608, Through hole; 609, Multi-position operating hole; 610, Multi-position cam; 611, Center through hole; 612, Tightening mark; 701, Ratchet; 702, Pawl; 703, Side seat; 704, Pawl shaft; 705, Torsion spring; 706, Torsion spring fixed seat; 707, Torsion spring moving seat; 801, Second receiving groove; 802, Conductive cam; 803, Insulating post; 804, Abutment spring; 805, Wire guide sleeve; 901, Isolation hole; 902, Conductive sealing gasket; 903, Side cover; 904, Contact spring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Example 1:

[0042] Examples of wearing the present invention, replacement of the heat therapy module 5 with different heat therapy functions, and use. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown;

[0043] The inner bottom of the solid housing 302 in both the main controller 2 and the solid housing 3 is flexibly connected to the wristband 1, and the top of the side wall of the solid housing 302 is symmetrically provided with snap-fit ​​grooves 303.

[0044] The thermotherapy module 5 is detachably connected to the solid shell 3 and is one of the far-infrared hot compress module, the moxibustion module and the medium heat transmission module. It includes a module shell 501 and a heat conduction layer 503. The heat conduction layer 503 is fixed to the bottom of the module shell 501. The lower inner end of the module shell 501 is provided with a thermotherapy function unit 505.

[0045] Among them, the thermotherapy functional unit 505 is a planar far-infrared heating element, a point-shaped high-temperature heating element, or a medium-activated heating element; the heat conduction layer 503 is a thermally conductive silicone pad, a phase change material encapsulation sheet, or a stainless steel heat conduction plate corresponding to the thermotherapy functional unit 505.

[0046] When the heat therapy module 5 is a far-infrared heat therapy module, the heat therapy functional unit 505 is a planar far-infrared heating element, and the heat conduction layer 503 is a thermally conductive silicone pad; when the heat therapy module 5 is a moxibustion module, the heat therapy functional unit 505 is a point-shaped high-temperature heating element, and the heat conduction layer 503 is a phase change material encapsulation sheet; when the heat therapy module 5 is a medium-mediated heat transfer module, the heat therapy functional unit 505 is a medium-activated heating element, and the heat conduction layer 503 is a stainless steel heat-conducting plate.

[0047] The snap-fit ​​assembly 6 includes a multi-position operating hole 609 and a multi-position cam 610. The one-way locking mechanism 7 includes a ratchet 701. The main body of the module housing 501 is slidably connected to the snap-fit ​​slider 602 on both sides of the main body in a horizontal outward motion. The multi-position operating hole 609 is opened in the middle of the main body of the snap-fit ​​slider 602. The main body of the module housing 501 is vertically screwed to the rotating shaft 606 on both sides of the main body. The multi-position cam 610 is fixed to the middle of the rotating shaft 606 and located in the multi-position operating hole 609. The ratchet 701 is fixed to the upper part of the rotating shaft 606. A pawl 702 is fitted on one side of the ratchet 701. The pawl 702 is screwed into the main body of the module housing 501 under the action of elastic torque.

[0048] The engagement between the multi-position cam 610 and the multi-position operating hole 609 has three states:

[0049] In the first state, the multi-position cam 610 does not interfere with the movement of the locking slider 602, and the locking slider 602 can move freely, which facilitates the formation of an elastic locking engagement with the locking groove 303.

[0050] In the second state, the eccentric end of the multi-position cam 610 abuts against the outer side of the multi-position operation hole 609, locking the locking slider 602 in the position that engages with the locking groove 303; and in the second state, the eccentric end of the multi-position cam 610 is not directly facing and abutting against the outer side of the multi-position operation hole 609, but at a certain angle, in order to prevent the locking slider 602 from pushing the pawl 702 and ratchet 701 and causing them to lose their position; and only in the second state can the main controller 2 be connected to the thermotherapy module 5.

[0051] In the third state, the eccentric end of the multi-position cam 610 abuts against the inner side of the multi-position operation hole 609, which can push the locking slider 602 to a position where it is disengaged from the locking groove 303, making it convenient to remove the heat therapy module 5 from the solid shell 3.

[0052] The working principle is as follows:

[0053] Wearing and preparing the device: The user wears the wristband 1 on their wrist. The main controller 2 and the solid housing 302 are flexibly connected to the wristband 1 so that it can adapt to different wrist sizes and fit comfortably. At this time, the heat therapy module 5 has not yet been installed.

[0054] Module installation and locking: The user pushes the selected thermotherapy module 5 into the solid shell 302 in the correct direction. During the pushing process, the locking sliders 602 on both sides of the module shell 501 are squeezed and retract inward.

[0055] At this time, the multi-position cam 610 and the multi-position operating hole 609 are in the first state of engagement, and the locking slider 602 can move freely.

[0056] When the thermotherapy module 5 reaches the end of its travel, the locking slider 602 pops outward under its own elasticity, and its head is locked into the locking groove 303 on the side wall of the solid housing 302, completing the initial locking.

[0057] The outer end of the rotating shaft 606, with the cooperation of the pawl 702 and the ratchet 701, can not only achieve unidirectional rotation of the rotating shaft 606, but also maintain its rotational position.

[0058] When the rotating shaft 606 drives the eccentric end of the multi-position cam 610 to abut against the outer side of the multi-position operating hole 609, it can lock the locking slider 602 in the position of engaging with the locking groove 303, so that the engagement state between the locking slider 602 and the locking groove 303 changes from elastic engagement to locked engagement, improving the safety effect of the connection between the heat therapy module 5 and the solid shell 3, and preventing the locking slider 602 from accidentally retracting under external force;

[0059] After the thermotherapy module 5 establishes a safe connection with the solid shell 3, the thermotherapy module 5 can be connected to the main controller 2 by rotating the conductive cam 802 into position. The main controller 2 can identify the specific type (far-infrared / moxibustion / medium) of the connected thermotherapy functional unit 505 and output precise drive power to the thermotherapy functional unit 505, thus activating the thermotherapy function.

[0060] The heat generated by the thermotherapy functional unit 505, which is a planar far-infrared heating element, a point-shaped high-temperature heating element, or a medium-activated heating element, is transferred downward to the heat conduction layer 503 formed by the corresponding heat-conducting silicone pad, phase change material encapsulation sheet, or stainless steel heat-conducting plate. A soft heat-conducting medium is provided between the inner side of the heat conduction layer 503 and the skin of the wrist, so that it can be in close contact with the heat conduction layer 503. The duration of the thermotherapy can be controlled by the main controller 2.

[0061] When the heat therapy module 5 is a far-infrared heat therapy module, the heat therapy functional unit 505 is a planar far-infrared heating element, and the heat conduction layer 503 is a heat-conducting silicone pad. The heat therapy functional unit 505 of this module emits far-infrared rays with a frequency similar to the vibration frequency of human cell molecules. This band of infrared rays is easily absorbed by subcutaneous tissue, producing a resonance effect and being converted into internal energy, thereby promoting local capillary dilation, accelerating blood circulation, and enhancing tissue metabolism. Combined with the uniform heat conduction and buffering effect of the heat-conducting silicone pad, a gentle, large-area heat therapy is achieved.

[0062] When the thermotherapy module 5 is a moxibustion module, the thermotherapy functional unit 505 is a point-shaped high-temperature heating element that simulates the combustion point of traditional moxibustion, and the heat conduction layer 503 is a phase change material encapsulation sheet; it provides concentrated and deep heat stimulation to specific pain points. The phase change material encapsulation sheet, as a heat conduction layer, can absorb and store heat, and then release it to the skin at a relatively constant and lasting temperature to form moxibustion, avoiding instantaneous high-temperature burns and achieving the effect of moxibustion.

[0063] In actual operation, after the user wears the wristband 1, they only need to place the heat therapy module 5 roughly in the area where common acupoints are distributed on the wrist (such as the area near the Neiguan acupoint, about 2-3 finger widths towards the arm, based on the wrist crease). The heat conduction layer 503 of the phase change material encapsulation sheet has a sufficiently large effective heat action area. As long as the heat therapy module 5 roughly covers the body surface area where the target acupoint is located, the heat field it generates can form an effective heat stimulation on the acupoint group in the area, thereby achieving the purpose of moxibustion therapy.

[0064] When the thermotherapy module 5 is a medium-mediated diathermy module, the thermotherapy functional unit 505 is a medium-activated heating element, and the heat conduction layer 503 is a stainless steel heat-conducting plate. This module is used in conjunction with topical medications (such as non-steroidal anti-inflammatory ointments for anti-inflammatory and analgesic purposes, traditional Chinese medicine ointments for dispelling cold and promoting blood circulation, and muscle relaxants for relieving soreness). The medium-activated heating element formed by the electrothermal element generates heat, which is quickly and evenly conducted to the skin-drug interface through the stainless steel heat-conducting plate. On the one hand, the heat enhances the permeability of the stratum corneum of the skin and promotes the transdermal absorption of the active ingredients of the drug. On the other hand, the heat energy itself can accelerate local blood circulation, which works synergistically with the drug to enhance the therapeutic effect. In this mode, a thin film seal is required between the topical medication and the wristband 1 to prevent the drug from seeping into the wristband.

[0065] After the heat therapy is completed, the heat therapy module 5 is disassembled. The user rotates the rotating shaft 606, which drives the multi-position cam 610 to rotate to the third state. The eccentric end of the multi-position cam 610 abuts against the inner side of the multi-position operating hole 609, pushing the locking slider 602 inward, so that it completely disengages from the locking groove 303. The locking slider 602 and the locking groove 303 are released, and the connection between the main controller 2 and the heat therapy module 5 is disconnected. The user can then remove the heat therapy module 5.

[0066] By continuing to rotate the rotating shaft 606, the multi-position cam 610 can be rotated to the first state, the locking slider 602 is reset under the elastic action, and the device is restored to the initial ready state. The wristband 1 can be removed from the wrist, or other functional heat therapy modules 5 can be installed.

[0067] The specific structure of the solid shell 3 and the heat-conducting medium layer 4 is as follows: Figure 2 As shown, the outer ring of the silicone sleeve 301 is fixed to the wristband 1, and the outer top end of the silicone sleeve 301 is fixed to the inner bottom end of the solid housing 302 to achieve a flexible connection between the solid housing 302 and the wristband 1, so that the solid housing 302 can move slightly relative to the wristband 1 to adapt to wrist movements.

[0068] The inlet end of the snap-fit ​​groove 303 is provided with an inlet ramp 304, which can guide the snap-fit ​​slider 602 to slide smoothly into the snap-fit ​​groove 303 during installation, reduce assembly resistance and avoid component collision, and ensure that the module is quickly and accurately aligned.

[0069] The heat-conducting medium layer 4 is fixed in the inner ring of the silicone sleeve 301. It is made of skin-friendly flexible silicone and is directly attached to the skin. Its purpose is to ensure that the heat generated by the heat therapy module 5 can be evenly and efficiently transferred to the affected area, while improving the wearing comfort.

[0070] The specific structure of the thermotherapy module 5 is as follows: Figure 4 and Figure 5As shown, the boss portion 507 is symmetrically fixed in the inner cavity of the module housing 501 and forms an integral structure with the module housing 501. The top of the inner cavity of the module housing 501 is covered by an outer cover plate 502, and the inner cavity of the module housing 501 is covered by an inner layer plate 504 at a position flush with the top surface of the boss portion 507.

[0071] Each thermotherapy functional unit 505 is equipped with a temperature sensor 506 between itself and the heat conduction layer 503. The sensor can monitor the temperature in real time and feed the temperature monitoring signal back to the main controller 2. The main controller 2 dynamically adjusts the power output of the thermotherapy functional unit 505 accordingly to achieve precise constant temperature control and overheat protection, ensuring safe and effective treatment.

[0072] The built-in control unit 508 is installed on the top of the inner layer plate 504. The thermotherapy function unit 505 and the temperature sensor 506 are electrically connected to the built-in control unit 508. The built-in control unit 508 is wirelessly connected to the main controller 2. Bluetooth and Zigbee communication technologies can meet its short-range wireless communication requirements.

[0073] In order to eliminate the effect of heat generated by the thermotherapy on the built-in control unit 508, a heat insulation layer is also bonded to the bottom surface of the inner layer plate 504.

[0074] The specific structures of the snap-fit ​​assembly 6 and the one-way locking mechanism 7 are as follows: Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the snap-fit ​​groove 601 is horizontally opened in the main body of the module housing 501 and the boss portion 507. The main body of the boss portion 507 is also vertically opened with a first receiving groove 603. The snap-fit ​​slider 602 is slidably inserted into the snap-fit ​​groove 601, and its tail is evenly connected to the inner side of the first receiving groove 603 with a compression spring 604, which can provide an outward elastic thrust for the snap-fit ​​slider 602.

[0075] Both ends of the cavity of the snap-fit ​​groove 601 are fixedly installed with rotating shaft seats 605. The rotating shaft 606 is screwed to a set of rotating shaft seats 605 at the top. The screw wheel 607 is fixed to the top of the rotating shaft 606. The through hole 608 is opened in the body of the screw wheel 607.

[0076] A central through hole 611 is symmetrically opened in the main body of the outer cover plate 502. A screwing mark 612 is engraved on the top surface of the outer cover plate 502 with the central through hole 611 as the center. The top end of the rotating shaft 606 passes through the central through hole 611 and is fixedly connected to the screwing wheel 607.

[0077] This allows the three rotational states of the multi-position cam 610 to be indicated by visually inspecting the turning mark 612 through the viewing hole 608 by turning the turning wheel 607.

[0078] The side seat 703 is fixed to the inner side of the first receiving groove 603. The pawl shaft 704 is screwed into the side seat 703. The main body of the pawl 702 is fixed to the top of the pawl shaft 704. A torsion spring seat 706 is fixed to the bottom surface of the side seat 703. A torsion spring moving seat 707 is fixed to the bottom end of the pawl shaft 704. The torsion spring 705 is sleeved on the bottom outer side of the pawl shaft 704. One end of the torsion spring 705 is locked to the torsion spring seat 706, and the other end is locked to the torsion spring moving seat 707.

[0079] It can provide the pawl 702 with elastic engagement torque with the ratchet 701, so that the turning wheel 607 can achieve unidirectional rotation and maintain the rotation position.

[0080] Example 2:

[0081] This invention achieves electrical connection control by using contact part 8 and safety connection module 9 to lock the insertion of the heat therapy module 5. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 12 As shown;

[0082] The second receiving groove 801 in the contact part 8 is laterally opened in the main body of the module housing 501 and the boss part 507. The bottom end of the multi-position cam 610 is fixed with an insulating post 803. The insulating post 803 is screwed to a set of rotating shaft seats 605 at the bottom end. The conductive cam 802 is fixed to the bottom end of the insulating post 803 and is located inside the second receiving groove 801.

[0083] Furthermore, the eccentric direction of the conductive cam 802 is the same as that of the multi-position cam 610, making it easier to control the on / off state of the conductive cam 802 and the conductive sealing gasket 902 by controlling the position of the multi-position cam 610.

[0084] The inner bottom end of the second receiving groove 801 is fixedly connected to an abutment spring 804. The top end of the abutment spring 804 is elastically pressed against the bottom of the conductive cam 802, and the conductive cam 802 is always connected to the abutment spring 804 during the rotation process.

[0085] The inner wall of the second receiving groove 801 is fixedly installed with a wire-passing sleeve 805, and the wire connecting the abutting spring 804 passes through the wire-passing sleeve 805 and is electrically connected to the built-in control unit 508.

[0086] Isolation holes 901 are provided on both sides of the main body of the solid housing 302. The conductive sealing gasket 902 is fixedly connected in the isolation hole 901. The side cover 903 is fastened to the outer side of the solid housing 302. The contact spring 904 is fixedly connected to the inside of the side cover 903 and is electrically connected to the main controller 2.

[0087] The conductive sealing gasket 902 is composed of silicone or fluorosilicone rubber containing various highly conductive particles. As the conductive medium between the conductive cam 802 and the contact spring 904, its elastic properties can effectively compensate for assembly tolerances, ensuring a stable and low-resistance current path is formed in the locked state. This avoids poor contact that may be caused by slight misalignment or vibration due to direct contact between metal sheets. It also buffers the mechanical stress between the conductive cam 802 and the contact spring 904 to a certain extent, extending the service life.

[0088] Only when the multi-position cam 610 rotates to the second state and locks the snap-fit ​​slider 602 in the snap-fit ​​position with the snap-fit ​​groove 303, the conductive cam 802 rotates to the position where it is pressed against the conductive sealing gasket 902 and the contact spring 904, so that the built-in control unit 508 and the main controller 2 form a passage. At this time, the main controller 2 can provide power to the built-in control unit 508, and after the main controller 2 provides power to the built-in control unit 508, it can automatically establish a wireless communication connection with the built-in control unit 508, thus forming automatic control of the built-in control unit 508 by the main controller 2.

[0089] When the multi-position cam 610 is in the first or third state, the conductive cam 802 is separated from the conductive sealing gasket 902 and the contact spring 904, the circuit between the main controller 2 and the built-in control unit 508 is cut off, and after the built-in control unit 508 loses power, the wireless communication with the main controller 2 is interrupted.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular wristband device with heat therapy function, comprising a wristband (1) and a main controller (2), characterized in that: It also includes a solid shell (3), a thermotherapy module (5), a snap-fit ​​assembly (6), a one-way locking mechanism (7), and a contact part (8); The fixed housing (3) includes a fixed housing (302). Both the main controller (2) and the fixed housing (302) are connected to the wristband (1). The top of the fixed housing (302) is symmetrically fixed with a snap-fit ​​groove (303). The thermotherapy module (5) is detachably connected to the solid shell (3) and is one of the far-infrared hot compress module, the moxibustion module and the medium heat transmission module. It includes a module shell (501), a heat conduction layer (503) is fixed at the bottom of the module shell (501), and a thermotherapy functional unit (505) is provided at the lower inner end of the module shell (501). The snap-fit ​​assembly (6) includes a multi-position cam (610), the one-way locking mechanism (7) includes a ratchet (701), the contact part (8) includes a conductive cam (802), the main body of the module housing (501) is slidably connected to the snap-fit ​​slider (602) on both sides, the snap-fit ​​slider (602) has a multi-position operating hole (609) in the middle, the module housing (501) is screwed to both sides of the rotating shaft (606), the multi-position cam (610) is fixed to the middle of the rotating shaft (606), the ratchet (701) is fixed to the upper part of the rotating shaft (606), the ratchet (701) is fitted with a pawl (702) on one side of the ratchet (701), the conductive cam (802) and the multi-position cam (610) are eccentric in the same direction and are insulated and fixedly connected; The cooperation between the multi-position cam (610) and the multi-position operating hole (609) can form three states: the snap-fit ​​slider (602) moves freely, the snap-fit ​​slider (602) is locked with the snap-fit ​​groove (303), and the snap-fit ​​slider (602) is retracted. Only after the snap-fit ​​slider (602) is locked with the snap-fit ​​groove (303) is the main controller (2) connected to the thermotherapy module (5) through the conductive cam (802). The thermotherapy module (5) also includes a boss (507), which is symmetrically fixed in the inner cavity of the module shell (501). Both ends of the cavity of the snap-fit ​​groove (601) are fixedly installed with rotating shaft seats (605). The contact part (8) includes a second receiving groove (801), which is opened in the main body of the module shell (501) and the boss (507). The bottom end of the multi-position cam (610) is fixed with an insulating material. The column (803) is screwed to the bottom rotating shaft seat (605). The conductive cam (802) is fixed to the bottom of the insulating column (803). The inner bottom of the second receiving groove (801) is fixed with an abutment spring (804). The top of the abutment spring (804) is elastically pressed against the bottom of the conductive cam (802). During the rotation of the conductive cam (802), it is always in a state of connection with the abutment spring (804).

2. The modular wristband device with thermotherapy function according to claim 1, characterized in that: The fixed shell part (3) also includes a silicone sleeve (301), the outer ring of the silicone sleeve (301) is fixed to the wristband (1), and the outer top end of the silicone sleeve (301) is fixed to the inner bottom end of the fixed shell (302).

3. A modular wristband device with thermotherapy function according to claim 2, characterized in that: The thermotherapy module (5) also includes a built-in control unit (508). An outer cover plate (502) is attached to the top of the inner cavity of the module housing (501). An inner layer plate (504) is attached to the inner cavity of the module housing (501) at a position flush with the top surface of the boss (507). Temperature sensors (506) are provided between the thermotherapy function unit (505) and the heat conduction layer (503). The built-in control unit (508) is installed on the top of the inner layer plate (504). The thermotherapy function unit (505) and the temperature sensor (506) are electrically connected to the built-in control unit (508). The built-in control unit (508) is wirelessly connected to the main controller (2).

4. A modular wristband device with thermotherapy function according to claim 3, characterized in that: The snap-fit ​​assembly (6) also includes a snap-fit ​​groove (601), a screw wheel (607), a through hole (608), and a center through hole (611). The snap-fit ​​groove (601) is formed in the main body of the module housing (501) and the boss portion (507). The main body of the boss portion (507) is also provided with a first receiving groove (603). The snap-fit ​​slider (602) is slidably inserted into the snap-fit ​​groove (601), and its tail is evenly connected to the inner side of the first receiving groove (603) with a compression spring (604). The rotating shaft (606) is screwed to the rotating shaft seat (605) at the top. The screw wheel (607) is fixed to the top of the rotating shaft (606). The through hole (608) is opened in the body of the screw wheel (607). The central through hole (611) is symmetrically opened in the body of the outer cover plate (502). The top surface of the outer cover plate (502) is engraved with a screwing mark (612) centered on the central through hole (611). The top of the rotating shaft (606) passes through the central through hole (611) and is fixed to the screw wheel (607).

5. A modular wristband device with thermotherapy function according to claim 4, characterized in that: The one-way locking mechanism (7) also includes a side seat (703), a pawl shaft (704), and a torsion spring (705). The side seat (703) is fixed to the inner side of the first receiving groove (603). The pawl shaft (704) is screwed into the side seat (703). The body of the pawl (702) is fixed to the top of the pawl shaft (704). A torsion spring seat (706) is fixed to the bottom surface of the side seat (703). A torsion spring moving seat (707) is fixed to the bottom end of the pawl shaft (704). The torsion spring (705) is sleeved on the bottom outside of the pawl shaft (704). One end of the torsion spring (705) is locked to the torsion spring seat (706), and the other end is locked to the torsion spring moving seat (707).

6. A modular wristband device with thermotherapy function according to any one of claims 2 to 5, characterized in that: It also includes a thermally conductive medium layer (4), which is fixed in the inner ring of the silicone sleeve (301).

7. A modular wristband device with thermotherapy function according to claim 3, 4 or 5, characterized in that: The inner wall of the second receiving slot (801) is fixedly installed with a wire-passing sleeve (805). The wire of the abutting spring (804) passes through the wire-passing sleeve (805) and is electrically connected to the built-in control unit (508).

8. A modular wristband device with thermotherapy function according to any one of claims 1 to 5, characterized in that: It also includes a safety connection module (9), which includes a conductive sealing gasket (902), a side cover (903) and a contact spring (904). Isolation holes (901) are provided on both sides of the main body of the solid housing (302). The conductive sealing gasket (902) is fixedly connected in the isolation hole (901). The side cover (903) is fastened to the outer side of the solid housing (302). The contact spring (904) is fixedly connected inside the side cover (903) and electrically connected to the main controller (2).

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