Hand-held pediatric warm massage physiotherapy device with constant temperature control contact

Abstract

The application discloses a handheld pediatric warm massage physiotherapy device with constant-temperature control contact, and belongs to the technical field of traditional Chinese medicine physiotherapy instruments. The device comprises an assembly base body, a holding seat is detachably assembled at the rear end of the assembly base body, a plug-in pipe is detachably connected to the front end of the assembly base body, a massage head is arranged at the end of the plug-in pipe, a through air duct accommodating cavity is formed in the assembly base body, a heating assembly is embedded in the air duct accommodating cavity, the back heat conduction surface of the massage head is connected with the hot air output end of the plug-in pipe, and the hot air generated by the air duct accommodating cavity continuously acts on the heat conduction surface of the massage head through the plug-in pipe. The device solves the problems that the warm massage equipment is inconvenient to disassemble, clean, maintain, and the temperature difference of the massage head is large due to uneven air flow, the device can adapt to the air supply intensity of the pediatric preheating and massage working conditions, is not easy to fatigue, and is safe in temperature control.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine physiotherapy equipment technology, specifically to a handheld pediatric warm massage physiotherapy device with a constant temperature control contact. Background Technology

[0002] In clinical practice of pediatric massage, traditional Chinese medicine often uses heat therapy to enhance the effects of clearing the meridians and dispelling cold pathogens. Currently, handheld heat massage devices on the market are mainly divided into two categories: one is a simple metal constant temperature massage stick without a hot air circulation structure, which relies on static heat conduction by the built-in resistance wire; the other is a hot air massage gun with a blower duct structure, which relies on direct hot air to heat the massage head. However, most existing massage therapy equipment has a one-piece injection-molded sealed structure for the shell, air duct, and massage head. Since pediatric massage involves frequent skin contact, sweat, lotion, and medicated oil can easily seep into the gaps in the air duct and the heat-conducting surface of the head. The one-piece structure makes it impossible to disassemble each component individually; usually, only surface wiping is done. This leaves residual grease and dirt inside the air duct, which can easily breed bacteria, meaning pediatric hygiene standards cannot be met. Furthermore, hot air massage equipment relies on a motor to blow a straight airflow. The airflow is concentrated and rapidly transported along the central axis within the air duct, concentrating the hot air on the central area of ​​the massage head's back. The heat supply to the edge heat-conducting surface of the head is insufficient, resulting in excessively high temperatures at the center and low temperatures at the edges during massage. Children's skin has a narrow tolerance range for temperature; localized high temperatures can easily cause redness and burning pain, while low-temperature areas lack the therapeutic effect of warming therapy. Electric massage devices already exist, such as the massage head for a massage gun and a massage gun containing the same disclosed in existing patent US11701290B2. The solution includes a massage head cover, a massage component, a cooling / heating component, and a conductive quick-connect component. The massage head cover and massage component are positioned opposite each other, forming a cavity for accommodating the cooling / heating component. The conductive quick-connect component is located at the end of the massage head cover furthest from the massage component and is electrically connected to the cooling / heating component. The massage head is detachably electrically connected to the massage gun body via the conductive quick-connect component. This massage gun includes a massage gun body, a grip handle, a reciprocating drive mechanism, a main circuit board, and a massage head; however, this technology is more suitable for adults. Summary of the Invention

[0003] The purpose of this invention is to provide a handheld pediatric warm massage therapy device with a constant temperature control contact, which solves the problems of inconvenient disassembly, cleaning and maintenance of warm massage equipment, as well as large temperature differences in the massage head due to uneven airflow in the air duct. The device of this invention can achieve air supply intensity adapted to the preheating and massage conditions of children, is less tiring to operate, and has safe temperature control.

[0004] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a handheld pediatric warm massage therapy device with a constant temperature control contact, including an assembly base, a detachable grip seat at the rear end of the assembly base, a detachable insertion tube at the front end of the assembly base, a massage head at the end of the insertion tube, a through-type air duct cavity formed inside the assembly base, a heating component embedded in the air duct cavity, the heat-conducting surface on the back of the massage head being connected to the hot air output end of the insertion tube, and the hot air generated in the air duct cavity continuously acting on the heat-conducting surface of the massage head through the insertion tube; The assembly base is formed by the air duct cavity enclosed by the first shell, the second shell, and the third shell that are sequentially sealed and spliced ​​along the axial direction. An annular sealing ring is set at the joint of adjacent shells to seal the air leakage. The assembly kit is fixed inside the first shell, and the plug pipe can be detachably locked inside the assembly kit through a snap-fit ​​structure.

[0005] The components of this invention adopt a segmented, detachable structure, allowing for the separate removal of the grip for inspection of internal control components, the separate removal of the connector for cleaning and disinfection of the massage head, and the separate removal of the heating element from the air duct cavity of the assembly base for maintenance and replacement. Overall operation and subsequent cleaning and maintenance are convenient. The split assembly structure also allows for disassembly and storage, reducing the overall storage space occupied by the device. The gun-shaped design, combined with the rear grip, stably supports the weight of the front connector and massage head, ensuring even pressure distribution on the hands during prolonged massage by medical personnel, alleviating wrist fatigue caused by continuous pressure. The assembly base consists of a first shell, a second shell, and a third shell, sealed and spliced ​​axially to form a through-type air duct cavity. These three shells can be axially disassembled to open the air duct cavity and remove the internal components segment by segment. For component maintenance, the annular sealing ring at the splicing seam can seal the gap to prevent the hot air from leaking out of the air duct and reduce the loss of hot air. This ensures that all the hot air in the air duct is delivered forward to the insertion pipe and massage head. The first shell, with its narrow front and wide rear conical structure, can gather and guide the hot air in the air duct, reduce the hot air flow cross-section, increase the air supply pressure, and allow the heat to be transferred more concentratedly to the heat-conducting surface of the massage head. The fittings that run through both ends inside the first shell serve as the insertion reference carrier for the insertion pipe, which can limit the insertion position of the insertion pipe and ensure that the insertion pipe and the airflow channel of the air duct cavity are precisely coaxially connected, stabilizing the airflow cross-section. The hot air generated in the air duct cavity continuously acts on the heat-conducting surface of the massage head through the insertion pipe. Relying on the built-in temperature control circuit and heating components, the surface of the massage head can be kept at a constant temperature.

[0006] According to one embodiment of the present invention, an oscillating head is connected to the inner side of the assembly. A flexible plate is attached to the oscillating head facing the air inlet side of the air duct. The flexible plate is made of elastic rubber and its projected area is larger than the port area of ​​the assembly. When airflow passes through the assembly, it can drive the flexible plate to oscillate back and forth to evenly distribute the hot air. The oscillating head is fixed to the inner wall of the assembly by a rod. The front end face of the oscillating head maintains an axial distance from the main insertion pipe to reserve an airflow gap for hot air circulation. After the concentrated hot air along the central axis contacts the flexible plate, the plate deforms around its perimeter under the impact of the airflow and may oscillate back and forth slightly. This disperses and diverts the main airflow that was originally concentrated in the center of the air duct. Part of the airflow passes through the gap between the flexible plate and the assembly port and flows to the outer ring channel of the assembly. Another part of the airflow overflows evenly from the edge gaps created by the swaying of the flexible plate. This transforms the single axial straight-line airflow into a composite airflow direction of central dispersion and outer ring diversion, eliminating the distribution difference between strong airflow along the central axis and weak airflow at the edges. At the same time, the oscillating flexible plate continuously disrupts the airflow vortex at the assembly port, suppressing hot air backflow and reducing heat interception and loss inside the air duct. The hot air, after being uniformly circulated, enters the internal channel of the assembly and is sent into the insertion pipe, making the temperature distribution of the hot air delivered to the insertion pipe and massage head uniform.

[0007] According to one embodiment of the present invention, the connector includes a main connector and a secondary connector. The secondary connector is threadedly fitted inside the main connector. The air outlet of the main connector is integrally formed into an extension. The massage head is locked and fixed to the front end of the extension by a countersunk bolt. The sealing ring filling the gap between the main connector and the fitting eliminates the assembly gap, limiting the front-to-back and radial displacement of the main connector and sealing the joint gap to prevent hot air leakage. The internal thread of the main connector assembles an independently detachable secondary connector. The diameter of the secondary connector decreases from large to small along the airflow path. When the airflow passes through the annular gap between the outer wall of the secondary connector and the inner wall of the main connector, the continuously narrowing channel cross-section can gather and pressurize the hot air, gather the scattered airflow and increase the air delivery kinetic energy. During the preheating stage, when the secondary connector is assembled, the gathered hot air can completely cover the end face of the extension and act evenly on the entire back heat-conducting substrate of the massage head to complete the preheating. During the massage, the secondary connector can be removed to reduce the airflow intensity and adapt to the skin tolerance of children. The integrated disc-shaped extension of the main connector air outlet provides a flat and complete assembly carrier for the massage head. The massage head is locked and fixed in the mounting groove at the front end of the extension by countersunk bolts.

[0008] According to one embodiment of the present invention, an annular buckle is machined on the outer wall of the rear end of the insertion main pipe, and a matching annular groove is formed on the inner wall of the assembly. The annular buckle and the annular groove engage and limit the insertion, and a sealing rubber ring is filled in the gap between the insertion main pipe and the assembly. The engagement of the annular buckle on the outer wall of the rear end of the insertion main pipe and the matching annular groove on the inner wall of the assembly can provide radial limiting for the insertion main pipe. The sealing rubber ring filled in the gap between the insertion main pipe and the assembly can not only eliminate the limitation of the assembly gap on the insertion main pipe to prevent back-and-forth and radial displacement and shaking, but also seal the insertion gap to prevent hot air from leaking out of the air duct from the assembly position, avoid heat loss, and ensure that the hot air is completely delivered to the massage head.

[0009] According to one embodiment of the present invention, the heating assembly includes a motor, and a blade assembly is coaxially fixedly connected to the output shaft of the motor. An electric heating plate is provided in front of the blade assembly, and a mesh plate is installed at a distance from the front end of the electric heating plate. A conical annular protrusion is provided between the electric heating plate and the blade assembly. The conical annular protrusion narrows along the airflow direction to gather the airflow delivered by the blade assembly. The side of the motor is fixed to the mounting channel of the heating assembly mounting base through a perforated plate. The perforated plate has a reserved gap to ensure that cold air passes through the periphery of the motor to complete heat dissipation. After the motor is powered on, it can drive the output shaft to drive the blade assembly to rotate synchronously at high speed in the circumferential direction to form a forward-pushing airflow. The conical annular protrusion provided between the blade assembly and the electric heating plate can narrow and gather the dispersed airflow delivered by the blade assembly along the airflow direction. The gathered airflow diffuses along the conical annular protrusion to prevent the heat flow from moving rapidly only along the axis of the air duct.

[0010] According to one embodiment of the present invention, the blade assembly includes a base plate and rotating blades arranged perpendicularly around the base plate. The center of the base plate is locked and fixed to the output shaft of the motor. The rotating blades rotate synchronously with the motor to push the airflow in the duct forward. When the motor drives the base plate and the rotating blades arranged perpendicularly around the base plate to rotate synchronously, the vertically arranged rotating blades can evenly grab the cold air entering from the dual air intake channels along the circumference. The airflow is constrained by the rotating blades and pushed forward stably along the axial direction. The cold air can evenly pass through the heating area of ​​the heating plate to complete heat exchange. The base plate and the rotating blades are an integrated modular structure that can be extracted from the third housing along with the heating assembly, facilitating the replacement of worn or deformed blade assemblies without disassembling the motor body.

[0011] According to one embodiment of the present invention, the third housing is provided with a first air inlet and the grip is provided with a second air inlet. The first air inlet and the second air inlet together form a dual-path air intake channel connected to a ventilation duct cavity. Outside cold air can simultaneously enter the air duct cavity from two channels. One stream of cold air goes directly to the front of the heating plate through the air intake channel, while the other stream passes through the gap between the motor and the outer side of the blade assembly from the side of the grip and enters the center of the air duct. The simultaneous supply of cold air from both channels can continuously remove the heat generated by the motor, preventing the motor from overheating and slowing down, which would cause insufficient air pressure. At the same time, it increases the total amount of cold air entering the air duct and improves the heat exchange efficiency of the heating plate. After the two streams of cold air converge at the center of the blade assembly, they are pushed forward by the rotating blades. The airflow is stable during the heat exchange process, reducing the temperature fluctuation of the hot air output by the heating plate. The continuously produced hot air with a stable temperature flows through the mesh plate, the air duct on the front side of the assembly base, and the insertion pipe, providing a stable constant temperature heat source support for the massage head. In addition, the cold air from the dual intake channels can also reduce the surface temperature of the assembly base and the grip shell, preventing medical staff from being burned by the residual heat of the shell when holding it for a long time.

[0012] According to one embodiment of the present invention, the grip seat seals the side opening of the third housing by means of connecting bolts; A matching insertion slot is provided between the third housing and the grip base, and an insertion rod is inserted into the insertion slot. Attached Figure Description

[0013] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the handheld pediatric warm massage therapy device with a constant temperature control contact of the present invention. Figure 2 This is a schematic diagram of the internal structure of the handheld pediatric warm massage therapy device with a constant temperature control contact of the present invention. Figure 3 This is a schematic diagram of the internal structure of the insertion tube of the present invention; Figure 4 This is a schematic diagram of the internal structure of the assembly base of the present invention; Figure 5 This is a schematic diagram of the internal structure of the first and second housings of the present invention; Figure 6 This is a schematic diagram of the internal structure of the third housing and the grip of the present invention; Figure 7 This is a partial cross-sectional view of the handheld pediatric warm massage therapy device with a constant temperature control contact of the present invention. Figure 8 This is a schematic diagram showing the components of the heating assembly of the present invention disassembled. Figure 9 This is a schematic diagram of the blade assembly scheme of the present invention; Figure 10 This is a schematic diagram showing the placement of the handheld pediatric warm massage therapy device with a constant temperature control contact of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 10. Assembly base; 11. First housing; 12. Second housing; 13. Third housing; 14. First air inlet; 15. Swing head; 16. Flexible plate; 17. Assembly assembly; 20. Insert pipe; 21. Insert main pipe; 22. Insert secondary pipe; 23. Extension; 30. Massage head; 40. Holder; 41. Switch; 42. Assembly rod; 43. Connecting bolt; 44. Second air inlet; 50. Heating assembly; 51. Motor; 52. Blade assembly; 521. Assembly ring; 522. Rotating blade; 523. Base plate; 53. Heating plate; 54. Mesh plate; 55. Air inlet channel; 60. Placement rack. Detailed Implementation

[0016] 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, and 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.

[0017] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1: As shown in the attached figure Figure 1 As shown, the handheld pediatric warm massage therapy device with constant temperature control contact is designed in a gun-like handheld shape for easy use by medical staff. The device includes an assembly base 10, a grip seat 40 is detachably mounted at one end of the assembly base 10, and a detachable plug-in fixing pipe 20 is provided at the other end of the assembly base 10. Specifically, the plug-in pipe 20 is located at the front end of the assembly base 10, while the grip seat 40 is located at the rear end of the assembly base 10. A massage head 30 is provided at the end of the plug-in pipe 20. An air duct receiving cavity is provided inside the assembly base 10, and a heating component 50 is embedded in the air duct receiving cavity.

[0019] The present invention features a segmented, detachable assembly structure. This allows for the separate removal of the grip base 40 to inspect internal control components, the separate removal of the insertion tube 20 to clean and disinfect the massage head 30, and the separate removal of the heating component 50 from the air duct cavity of the assembly base 10 for maintenance and replacement. The overall ease of operation and subsequent cleaning and maintenance is ensured. Furthermore, the gun-shaped overall design, combined with the grip point of the rear grip base 40, can stably support the weight of the front insertion tube 20 and the massage head 30. This ensures that the force distribution on the hands is even when medical personnel hold and massage for a long time, relieving soreness and fatigue caused by continuous pressure on the wrist. At the same time, the split assembly structure can be disassembled and stored, reducing the space occupied by the whole machine.

[0020] Specific combination Figures 1-5 The assembly base 10 shown has a first shell 11, a second shell 12, and a third shell 13. The first shell 11, the second shell 12, and the third shell 13 are sequentially sealed and spliced ​​together along the front and rear axial directions. The interiors of the first shell 11, the second shell 12, and the third shell 13 are interconnected to form a through-type air duct cavity. The first shell 11 is a conical shell that is narrow at the front and wide at the rear. The second shell 12 is a cylindrical shell in the middle section. The third shell 13 is a transition shell at the rear end. The joints of the three shells need to be sealed with an annular sealing ring to avoid air leakage gaps.

[0021] The assembly base 10 is specifically composed of a first shell 11, a second shell 12, and a third shell 13, which are axially sealed and spliced ​​together to form a through-type air duct cavity. Furthermore, the first shell 11 adopts a tapered structure that is narrow at the front and wide at the back, the second shell 12 adopts a cylindrical structure, and the third shell 13 adopts a transition shell segmented fit that can be disassembled axially to open the air duct cavity. This allows for the segmented removal of internal parts such as the internal heating component 50 and the swing head 15 for maintenance. An annular sealing ring is installed at the splicing gap of the three parts to seal the gap, thereby preventing the hot air in the air duct from leaking out from the splicing point, reducing the loss of hot air, and ensuring that all the hot air in the air duct is delivered forward to the insertion pipe 20 and the massage head 30. The tapered first shell 11 can also form a converging and guiding flow of hot air in the air duct, reduce the hot air flow cross section, increase the air supply pressure, and allow the heat to be more concentratedly transferred to the heat-conducting surface of the massage head 30.

[0022] A fitting 17 is provided inside the first housing 11. The fitting 17 is through-hole at both ends, with one end of the fitting 17 penetrating through the first housing 11. This fitting 17 is used for insertion and assembly with the insertion pipe 20. This allows the insertion pipe 20 to communicate with the interior of the air duct cavity when the fitting 17 is in place, facilitating airflow. Furthermore, a swing head 15 is provided inside the air duct cavity formed within the first housing 11, the second housing 12, and the third housing 13. A flexible plate 16 with a plate-like structure is attached to the rear end of the swing head 15. The area of ​​the flexible plate 16 is larger than that of the fitting 17. Figure 5As shown, the swing head 15 is connected to the inner wall of the mounting kit 17 via a rod. Specifically, the swing head 15 has a rod at its rear end, and the inner wall of the mounting kit 17 has a connecting strip that connects to the rod. Thus, the swing head 15 and the mounting kit 17 are connected. The flexible plate 16 is placed in front of the port of the mounting kit 17 and has a gap between it and the port of the mounting kit 17. Furthermore, the projected area of ​​the flexible plate 16 is larger than the projected area of ​​the port of the mounting kit 17.

[0023] The first housing 11 has a through-hole assembly 17 inside, which serves as the insertion reference carrier for the insertion pipe 20. The assembly 17 defines the insertion position of the insertion pipe 20, ensuring that the insertion pipe 20 is coaxially connected to the airflow channel of the air duct cavity, stabilizing the airflow cross section. The inner wall of the assembly 17 is connected to the swing head 15 via a rod. The rear end of the swing head 15 is attached to a flexible plate 16 with a projected area larger than the port of the assembly 17 and a gap is reserved between the port and the plate. In this way, when the hot air concentrated on the central axis contacts the surface of the flexible plate 16, the surface of the flexible plate 16 deforms under the action of the airflow. Under the impact of the airflow, the flexible plate 16 may also produce a small reciprocating swing. That is, the airflow on the central axis is broken up and diffused to the surroundings after hitting the plate surface, and the air originally gathered in the air duct is dispersed. The main airflow is dispersed and split. Part of the airflow passes through the gap between the flexible plate 16 and the port of the assembly 17 and flows to the outer ring channel of the assembly 17. The other part of the airflow overflows evenly from the edge gaps generated by the swaying of the flexible plate 16. The original single axial straight airflow is transformed into a composite airflow direction of central dispersion and outer ring diversion. This can eliminate the distribution difference between strong airflow on the central axis and weak airflow on the edge. At the same time, the swaying flexible plate 16 can destroy the airflow vortex at the port of the assembly 17, suppress hot air backflow, and reduce heat interception and loss inside the air duct. The hot air after being uniformly flowed enters the internal channel of the assembly 17 and is sent into the insertion pipe 20, so that the temperature of the hot air delivered to the insertion pipe 20 and the massage head 30 is evenly distributed.

[0024] The flexible plate 16 is made of elastic rubber. The flexible plate 16 can swing back and forth relative to the swing head 15 under the action of airflow. That is, the flexible plate 16 without the part connected to the swing head 15 can swing back and forth under the action of airflow. The specific swing direction needs to be determined according to the airflow direction. The front end of the swing head 15 faces the rear end of the insertion pipe 20. The two have an axial distance to ensure that hot air is sent into the insertion pipe 20.

[0025] like Figure 3As shown, the insertion pipe 20 includes an insertion main pipe 21 with an airflow channel. The front and rear ends of the insertion main pipe 21 are the airflow channel inlet and outlet. The insertion main pipe 21 is inserted into the mounting device 17 at one end. An annular buckle is provided on the outer wall of the rear end of the insertion main pipe 21. The buckle engages and limits the engagement with the annular groove of the mounting device 17. The outer wall of the insertion main pipe 21 that is inserted into the mounting device 17 is filled with a rubber ring to prevent loosening. A detachable insertion sub-pipe 22 is provided in the other end of the insertion main pipe 21. The insertion sub-pipe 22 is built into the insertion main pipe 21. One end of the insertion sub-pipe 22 is threaded to the inner wall of the insertion main pipe 21. The outer wall of the other end is spaced apart from the inner wall of the insertion main pipe 21. That is, the diameter of the insertion sub-pipe 22 along the outward flow path of the airflow is reduced from large to small. A disc-shaped extension 23 is provided in the airflow outlet direction of the insertion main pipe 21. The extension 23 can be connected to the massage head 30. The massage head 30 is bolted and fixed in the mounting groove of the extension 23.

[0026] Radial limiting is achieved by engaging the annular buckle on the outer wall of the main connector 21 with the slot of the fitting 17. The filling rubber ring on the outer wall of the connector eliminates assembly gaps, limiting the forward and backward, radial displacement and swaying of the main connector 21, and sealing the connector gaps to prevent hot air leakage. The internal thread of the main connector 21 is fitted with an independently detachable secondary connector 22. The diameter of the secondary connector 22 gradually narrows along the airflow direction. As the airflow passes through the annular gap between the outer wall of the secondary connector 22 and the inner wall of the main connector 21, the continuously narrowing channel cross-section concentrates and pressurizes the hot air, gathering the scattered airflow and increasing the air delivery kinetic energy. The integrated disc-shaped extension 23 at the outlet of the main connector 21 serves as the massage head 3. The system provides a flat and complete assembly carrier. The massage head 30 is fixed in the mounting groove of the extension 23 by bolts. The snap-fit ​​structure allows for quick separation of the main plug 21 and the assembly 17. The threaded connection allows the plug sub-tube 22 to be unscrewed out separately, and the bolt connection allows the massage head 30 to be removed separately. After disassembly, each component can be used to flush the inside of the air duct and the massage contact surface. It should be noted that the narrow plug sub-tube 22 is used for preheating before massage. During the massage process, the plug sub-tube 22 needs to be removed. During the preheating stage, the hot air gathered by the plug sub-tube 22 can completely cover the end face of the extension 23 and evenly act on the entire back heat-conducting substrate of the massage head 30 to achieve preheating.

[0027] The massage head 30 is a constant temperature control contact head. Its back is fixed to the front mounting groove of the extension 23. The heat-conducting surface of the back of the massage head 30 completely covers the air outlet of the extension 23. The heat-conducting surface of the back of the massage head 30 has an array of air outlets. Hot air blows directly onto the heat-conducting substrate on the back of the massage head 30. The heat carried by the hot air is continuously conducted to the bottom surface of the massage head 30. The constant temperature output of the surface of the massage head 30 is achieved by the built-in temperature control circuit of the whole machine in conjunction with the heating component 50. The massage head 30 and the extension 23 are vertically locked with four countersunk bolts. The bolts are evenly distributed along the four corners of the extension 23.

[0028] Example 2: This embodiment is based on the scheme of Embodiment 1, combined with the appendix. Figure 6 , Figure 7 As shown, the heating component 50 within the air duct cavity includes an embedded base. The outer wall of the embedded base has a rubber ring that fills the inner wall of the third housing 13 to prevent loosening. The embedded base serves as the overall support base for the heating component 50. An installation channel is provided within the embedded base, and a motor 51 is housed within the installation channel. The side of the motor 51 is fixedly installed to the installation channel via a perforated plate. The axis of the motor 51 faces the airflow output direction. At the output end of the motor 51, there is a blade assembly 52 connected to the motor 51's rotating shaft. When the motor 51 is energized, it drives the output shaft to synchronously rotate the entire blade assembly 52 at high speed in a circumferential direction. The airflow is pushed forward by the wind pressure. At the front end of the blade assembly 52, there is an electric heating plate 53. The electric heating plate 53 is detachably connected to the mounting channel of the mounting base. At the front end of the electric heating plate 53, there is a mesh plate 54. The mesh plate 54 and the electric heating plate 53 are spaced apart. There is also a spaced distance between the electric heating plate 53 and the blade assembly 52. ​​An annular protrusion is provided on the mounting channel between the blade assembly 52 and the electric heating plate 53. The annular protrusion has a conical cross-section. An air intake channel 55 facing the electric heating plate 53 is opened in the third housing 13. A first air intake hole 14 communicating with the air intake channel 55 is provided on the outer wall of the third housing 13.

[0029] By filling the outer wall of the base with rubber rings to fit the inner wall of the third housing 13, the radial and axial sway of the base is restricted, reducing the vibration amplitude transmitted from the motor 51 to the whole machine. The motor 51 is fixed to the base mounting channel through a perforated plate with its axis facing the airflow output direction. The perforated plate has reserved gaps to ensure that the cold air passes through the periphery of the motor 51 to complete heat dissipation. The motor 51 drives the blade assembly 52 to rotate and generate a forward-pushing airflow. A conical cross-section annular protrusion is provided between the blade assembly 52 and the heating plate 53. When the airflow passes through, the channel cross-section gradually narrows and gathers the airflow along the air delivery direction. The gathered airflow spreads along the conical cross-section annular protrusion, which helps it to diffuse in the air duct cavity and avoids the heat flow from concentrating and moving rapidly along the axis of the air duct cavity. In addition, the heating plate 53 and the base mounting channel can be detachably assembled and disassembled, and a mesh plate 54 is arranged at the front end. The mesh plate 54 separates the hot air to prevent the high-temperature components of the heating plate 53 from being directly exposed to the front air duct and plays a role in filtering the airflow.

[0030] The present invention connects the air intake channel 55 directly to the electric heating plate 53 through the first air intake hole 14 on the outer wall of the third housing 13. In this way, the cold air from the outside can be directionally delivered to the heating area to continuously replenish the heat exchange air source. After the airflow is gathered and heat exchanged by the conical annular protrusion, it passes through the mesh plate 54 and is smoothly delivered to the front-end assembly 17 and the insertion pipe 20.

[0031] The gripping seat 40, which is connected to the side of the air duct receiving cavity of the first housing 11, the second housing 12, and the third housing 13 of the assembly base 10, blocks the side opening of the third housing 13. The gripping seat 40 and the third housing 13 are connected by connecting bolts 43. The gripping seat 40 has a second air inlet 44 that connects the interior of the air duct receiving cavity of the first housing 11, the second housing 12, and the third housing 13. External air can enter the air duct receiving cavity through the second air inlet 44 and pass through the motor 51 and the blade assembly 52. The second air inlet 44 and the first air inlet 14 form a dual air intake channel. External cold air enters the internal air duct simultaneously from the first air inlet 14 and the second air inlet 44, continuously supplying cold air to the heating component 50. In this way, the cold air flowing in from the dual air inlets converges into the center through the periphery of the motor 51 and the outer gap of the blade assembly 52. ​​It is pushed forward by the rotating blade 522, passes through the electric heating plate 53 to complete the heating, and forms constant temperature hot air. After passing through the mesh plate 54, the hot air enters the front air duct of the assembly base 10 and is finally delivered to the plug pipe 20 and the massage head 30.

[0032] The grip 40 is locked and sealed by connecting bolts 43, blocking the side opening of the third housing 13. This facilitates the disassembly of the grip 40 and prevents the opening of the lateral airflow leakage channel. Furthermore, the grip 40 has a second air inlet 44 that connects to the air duct cavity of the entire machine. Together with the first air inlet 14 on the outer wall of the third housing 13, they form a dual independent air inlet channel. Outside cold air can enter the air duct cavity simultaneously from two locations. One path goes directly to the front end of the heating plate 53 through the air inlet channel 55, while the other path passes through the gap between the motor 51 and the outer side of the blade assembly 52 from the side of the grip 40 and merges into the center of the air duct. The simultaneous supply of cold air from both paths can continuously remove the heat generated by the motor 51 during operation and prevent... Overheating and speed reduction of motor 51 can cause insufficient air pressure, but it can also increase the total amount of cold air entering the air duct and improve the heat exchange efficiency of heating plate 53. After the two streams of cold air converge at the center of blade assembly 52, they are pushed forward by rotating blade 522. The airflow is stable during the heat exchange process, reducing the temperature fluctuation of the hot air output by heating plate 53. The continuously produced hot air with a stable temperature flows through mesh plate 54, front air duct of assembly base 10, and plug pipe 20, providing a stable constant temperature heat source support for massage head 30. In addition, the cold air from the dual air intake can also reduce the surface temperature of assembly base 10 and grip 40 shell, preventing medical staff from being burned by the residual heat of the shell when holding it for a long time.

[0033] Temperature detection components are provided in the front air duct of the heating plate 53, the inner heat conduction cavity of the extension 23, and the control part of the grip 40. Specifically, a sensor mounting slot is reserved in the inner heat conduction cavity of the extension 23 for embedding a front-end temperature measuring unit, which is an NTC thermistor. The real-time temperature data of the contact head collected inside the extension 23 is directly fed back to the back-end control unit. In this way, the heat carried by the hot air is continuously conducted to the bottom surface of the massage head 30. The constant temperature output of the massage head 30 is achieved by the built-in temperature control circuit of the whole machine in conjunction with the heating component 50, temperature detection and control.

[0034] The front air duct of the heating plate 53 is specifically formed by an embedded groove on the upper end of the mesh plate 54, which is used to fix the air duct temperature probe. The air duct temperature probe is specifically an NTC thermistor temperature sensor. The air duct temperature probe at the mesh plate 54 collects the base temperature of the hot air after heating in real time. In this embodiment, an overheat protection fuse is added. The overheat protection fuse is arranged in series on the power supply circuit of the heating plate 53. The fuse body is fixed tightly against the side end face of the heating plate 53, and a thermally conductive pad is set on the contact surface between the two. The fuse has a preset melting critical temperature of 55°C. When the front end temperature measuring unit and the air duct temperature probe fail simultaneously, and the heating plate 53 abnormally continues to rise to 55°C, the overheat protection fuse physically melts, directly cutting off all power supply to the heating plate 53, forcibly stopping heating, and preventing the massage head 30 from being burned by overheating. A heat insulation sleeve is set on the outside of the fuse to avoid interference from the normal temperature airflow in the air duct with the accuracy of the temperature measurement fuse trigger.

[0035] An independent control compartment is sealed in the lower half of the grip base 40. The inner wall of the control compartment is provided with a snap-fit ​​groove, and the main control circuit board is snapped and fixed in the snap-fit ​​groove. A heat insulation partition is provided between the control compartment and the air duct.

[0036] Example 3: This embodiment is based on the scheme of embodiment 2. There is a corresponding insertion groove between the third housing 13 and the grip 40, and an assembly rod 42 is inserted into the insertion groove. The grip 40 has a handle adapted for the user's hand to hold, and above the handle is a switch 41 that controls the operation of the motor 51, the heating plate 53 and the massage head 30. The switch 41 is a toggle switch.

[0037] By setting corresponding sized insertion slots at the matching positions of the third housing 13 and the grip 40 and inserting the assembly rod 42, the radial and circumferential assembly positions of the grip 40 and the third housing 13 are predefined by the assembly rod 42. During assembly, there is no need to repeatedly align the housing openings. It is only necessary to insert the assembly rod 42 to complete the pre-positioning and then tighten the connecting bolt 43. In addition, the assembly rod 42 and the connecting bolt 43 can form a double limiting load-bearing structure, which disperses the cantilever load brought by the front end component, weakens the pulling effect of the high-speed rotation vibration of the motor 51 and the blade assembly 52 on the bolt 43, and reduces the probability of bolt loosening and handle tilting after long-term use.

[0038] The grip base 40 is equipped with a handle that conforms to the contour of the hand to form a stable grip support. The toggle switch 41 is centrally arranged above the handle. When medical staff operate with one hand, their thumb can directly touch the switch 41, and they can start, stop and adjust the working status of the motor 51 and the heating plate 53 without releasing the equipment. They can adjust the equipment without interrupting the massage action, reducing the operating fatigue caused by frequent hand movement.

[0039] Example 4: This embodiment is based on the scheme of Embodiment 1, combined with... Figures 8-9 As shown, the blade assembly 52 includes a circular base plate 523. A rotating blade 522 is arranged around the end face of the base plate 523 facing the heating plate 53. The rotating blade 522 is arranged perpendicular to the surface of the base plate 523. The center of the base plate 523 is connected to the output shaft of the motor 51 through a connecting sleeve. The surface of the rotating blade 522 is arranged around the connecting sleeve at the center of the base plate 523. An assembly ring 521 is provided on the outer ring of the base plate 523.

[0040] When the motor 51 drives the entire structure to rotate synchronously, the vertically arranged rotating blades 522 can evenly grab the cold air entering from the dual air intake channels along the circumference. The airflow is constrained by the vertical blades and pushed forward along the axial direction. The cold air passes evenly through the heating area of ​​the electric heating plate 53 for heat exchange. In addition, during later inspection or maintenance, the base plate 523 and the rotating blades 522 are modular integral structures. They can be pulled out from the third housing 13 along with the heating component 50 to replace the worn or deformed blade assembly 52 separately without disassembling the main body of the motor 51.

[0041] Example 5: This embodiment is based on embodiment 1, combined with... Figure 10 As shown, this device has an independently configured placement rack 60. An arc-shaped locking groove is opened at the upper end of the placement rack 60. When the whole machine is not in use, the insertion tube 20 with the massage head 30 is placed on the upper end of the placement rack 60. The massage head 30 is suspended in the air and does not contact the table surface, thus avoiding wear and dirt accumulation on the massage contact surface.

[0042] Example 6: In this embodiment, the method of using the handheld pediatric warm massage therapy device with a constant temperature control contact is as follows: The operator holds the grip base 40 with one hand, flips the switch 41 to connect the circuit, the motor 51 starts and drives the blade assembly 52 to rotate to generate wind pressure, external cold air enters the internal air duct through the first air inlet 14 and the second air inlet 44; the airflow passes through the electric heating plate 53 and is heated into constant temperature hot air, the hot air flows through the mesh plate 54, the front air duct of the assembly base 10, the gap between the swing head 15 and the insertion pipe 20 into the hollow cavity of the insertion pipe 20, the hot air continuously conducts heat to the front massage head 30; the operator holds the whole machine and puts the massage head 30 against the child's skin to perform massage and pressure.

[0043] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention.

[0045] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A handheld pediatric warm massage therapy device with a constant temperature control contact, comprising an assembly base (10), wherein a grip seat (40) is detachably mounted at the rear end of the assembly base (10), and a plug tube (20) is detachably connected to the front end of the assembly base (10), wherein a massage head (30) is provided at the end of the plug tube (20), characterized in that, The assembly base (10) forms a through-type air duct cavity, and a heating component (50) is embedded in the air duct cavity. The back heat-conducting surface of the massage head (30) is connected to the hot air output end of the plug tube (20). The assembly base (10) is formed by the air duct cavity enclosed by the first shell (11), the second shell (12) and the third shell (13) that are sequentially sealed and spliced ​​along the axial direction. The first shell (11) has an assembly kit (17) fixed inside. The insertion pipe (20) is detachably engaged inside the assembly kit (17) through a snap-fit ​​structure.

2. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 1, characterized in that, The inner side of the assembly (17) is connected to a swing head (15), and a flexible plate (16) is attached to the air inlet side of the air duct of the swing head (15). The projected area of ​​the flexible plate (16) is larger than the port area of ​​the assembly (17).

3. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 2, characterized in that, The swing head (15) is fixed to the inner wall of the mounting (17) by a rod.

4. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 1, characterized in that, The insertion pipe (20) includes an insertion main pipe (21) and an insertion secondary pipe (22). The insertion secondary pipe (22) is threaded into the inside of the insertion main pipe (21). The air outlet of the insertion main pipe (21) is integrally formed into an extension (23). The massage head (30) is locked and fixed to the front end of the extension (23) by a countersunk bolt.

5. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 4, characterized in that, The outer wall of the rear end of the plug-in main tube (21) is machined with an annular buckle, and the inner wall of the fitting (17) is opened with a matching annular groove. The annular buckle and the annular groove are engaged and limited, and the gap between the plug-in main tube (21) and the fitting (17) is filled with a sealing rubber ring.

6. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 1, characterized in that, The heating component (50) includes a motor (51), the output shaft of which is coaxially fixedly connected to a blade assembly (52), a heating plate (53) is provided in front of the blade assembly (52), and a mesh plate (54) is installed at intervals at the front end of the heating plate (53).

7. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 6, characterized in that, The blade assembly (52) includes a base plate (523) and rotating blades (522) arranged perpendicularly around the base plate (523). The center of the base plate (523) is locked and fixed to the output shaft of the motor (51). The rotating blades (522) rotate synchronously with the motor and push the airflow in the duct forward.

8. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 6, characterized in that, The third housing (13) has a first air inlet (14), and the grip (40) has a second air inlet (44). The first air inlet (14) and the second air inlet (44) together form a dual-channel air intake cavity connected to the ventilation duct.

9. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 6, characterized in that, There is a conical annular protrusion between the heating plate (53) and the blade assembly (52), which narrows along the airflow direction to gather the airflow delivered by the blade assembly (52).

10. The handheld pediatric warm massage therapy device with a constant temperature control contact as described in claim 1, characterized in that, The grip (40) seals the side opening of the third housing (13) by connecting bolts (43); A matching insertion groove is provided between the third housing (13) and the grip (40), and a plug rod (42) is inserted into the insertion groove.

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