Temperature-adjustable and controllable pain relieving device for four-limb joints

Abstract

The invention discloses a temperature-adjustable and temperature-controllable pain relieving device for four-limb joints, and relates to the technical field of medical devices. The temperature-adjustable and temperature-controllable pain relieving device for the four-limb joints comprises an equipment shell, the joint adjusting assemblies are mounted on the left side and the right side of the equipment shell through screws; the binding rope is mounted on the outer side of the joint adjusting assembly through the positioning bulge; the controllable joint relieving structure is arranged in the equipment shell and extends to the outer side; the controllable joint relieving structure comprises a worm driving assembly which is installed on the top of the equipment shell and extends to the inner side; and the gear structure is in meshed connection with the worm driving assembly and is movably arranged in the equipment shell. According to the invention, the painful joint part of the patient can be automatically massaged, which is simple and convenient. Meanwhile, it can be guaranteed that heat is transmitted into the joints of the patient during massage, the capacity and effect of relieving the joints of the patient are improved, and the heat used for relieving joint pain is more easily transmitted into the joints of the patient.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an adjustable and controllable temperature pain relief device for limb joints. Background Technology

[0002] Joint pain is a common symptom that can be caused by a variety of factors, including acute injury from trauma, inflammatory diseases, or osteoporosis. Most cases of joint pain can be relieved by joint massage and warming, which may require the use of a pain relief device.

[0003] A myofascial release device for relieving joint discomfort, with publication number CN118576473A, includes a side-binding mechanism and a joint massage mechanism. The side-binding mechanism consists of two sets arranged symmetrically, enclosed by a protective cover mounted on a fixed plate at the bottom of the side-binding mechanism. A handle is fixedly installed on the top of the protective cover for easy handling. The joint massage mechanism is located below the side-binding mechanism and is fixedly mounted on a plate above it via a spherical shell. By adjusting the two sets of symmetrical side-binding mechanisms, the straps are secured to a suitable position on the body, and the joint massage mechanism is aligned with the area requiring massage. This design specifically targets bone and joint massage, and the inner side of the curved shell can be heated to further enhance comfort during massage. Heating also provides protection for the joints and promotes blood circulation in the joint area.

[0004] Existing pain relief devices typically use massage to alleviate joint pain. Traditionally, to enhance the massage effect and eliminate joint pain, a hot towel is placed on the joint. The heat from the towel, combined with the massage, provides rapid relief. However, in practice, this method suffers from drawbacks. The hot towel obstructs the massage, resulting in less pressure and greater inaccuracy in the massage area, thus affecting the overall effectiveness. Furthermore, the hot towel loses heat quickly in the environment, requiring frequent replacement, which is inconvenient. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable and controllable temperature pain relief device for the joints of the limbs, in order to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an adjustable and controllable temperature-controlled pain relief device for limb joints, comprising: a device housing; joint adjustment components mounted on the left and right sides of the device housing by screws; a binding rope mounted on the outside of the joint adjustment components by positioning protrusions; and a controllable joint relief structure disposed inside the device housing and extending to the outside. The controllable joint relief structure includes: a worm gear drive assembly mounted on the top of the device housing and extending to the inner side; a gear structure meshing with the worm gear drive assembly and movably disposed inside the device housing; a pain relief structure connected to the gear structure and movably disposed on both sides of the bottom of the device housing; and a universal joint assembly rotatably connected to the pain relief structure and mounted on the bottom of the device housing.

[0007] As a preferred embodiment of the present invention, the joint adjustment assembly includes: side mounting seats installed on the left and right sides of the device housing; an assembly plate installed on the side of the side mounting seats; a mounting plate installed on the assembly plate; and positioning sleeves installed on the left and right sides of the assembly plate. The assembly plate has multiple positioning protrusions on both sides of its top, and a binding rope is fitted inside the positioning sleeve.

[0008] In a preferred embodiment of the present invention, a plurality of angle positioning blocks are provided at the included angles of the assembly plate, and a threaded block located on the side of the positioning protrusion is provided at the center of the assembly plate. A threaded rod is threadedly connected to the inside of the threaded block, and a rotating disk is mounted on the top of the threaded rod. The threaded rod has a lower pressure sleeve rotatably connected to the outer side of its bottom, and the lower pressure sleeve is located inside the binding rope.

[0009] As a preferred embodiment of the present invention, guide rods are connected to the left and right sides of the top of the lower pressure sleeve, the guide rods are disposed through the assembly plate, and the guide rods are located on the left and right sides of the threaded rod.

[0010] As a preferred embodiment of the present invention, the worm gear drive assembly includes: a small drive source mounted on one side of the top of the device housing; a transmission belt connected to the output end of the small drive source via a synchronous pulley and extending into the interior of the device housing; a rotating shaft connected to the inner side of the transmission belt via a synchronous pulley and rotatably connected inside the device housing; a rotating worm gear mounted on the outer side of the rotating shaft; and worm wheels meshing with the left and right sides of the rotating worm gear and rotatably connected to the left and right sides inside the device housing. The worm gear has a gear structure connected to its coaxial end.

[0011] As a preferred embodiment of the present invention, the gear structure includes: a first gear coaxially connected to the worm gear and rotatably connected inside the equipment housing; a second gear meshing with the first gear and rotatably connected inside the equipment housing; a third gear meshing with the second gear and rotatably connected inside the equipment housing; and a movable gear meshing with the side of the third gear and rotatably connected inside the equipment housing. The movable gear is equipped with a pain relief structure.

[0012] As a preferred embodiment of the present invention, the pain relief structure includes: a connecting rod connected to the movable gear and extending to the bottom of the device housing; a lower connecting seat mounted on the bottom of the device housing and rotatably connected to the connecting rod inside; an assembly seat movably connected to the bottom of the lower connecting seat; an inner mounting block mounted inside the assembly seat and connected to the connecting rod; and an outer protrusion mounted on the outer side of the assembly seat. The outer side of the protruding part is connected to a universal joint component.

[0013] As a preferred embodiment of the present invention, a diagonal rod is installed at the bottom of the mounting base, and a massage unit is snapped and fixed at the bottom of the diagonal rod. A heating module is provided inside the massage unit, and multiple massage heads are installed at the bottom of the massage unit. The massage heads are electrically connected to the heating module and generate heat through the heating module.

[0014] In a preferred embodiment of the present invention, the universal movable component includes: two universal ball structures rotatably connected to the left and right sides of the outward protrusion, the two universal ball structures being rotatably connected; an extension protrusion connected to the universal ball structures; and guide seats slidably connected to the extension protrusions and mounted on both sides of the bottom of the device housing. Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. In the adjustable and controllable temperature pain relief device for limb joints, when relieving pain in a patient's joints, a small drive source is activated to rotate two massage units connected to a gear structure, automatically massaging the painful joints. This simple and convenient operation provides pain relief. Simultaneously, the massage units, through their internal heating units, automatically generate heat to multiple massage heads that contact the patient's joints, ensuring heat is transferred to the joints during the massage and enhancing the pain relief effect. Furthermore, the massage heads do not obstruct the patient's skin, resulting in better massage and easier heat transfer to the joints. 2. In the adjustable and controllable temperature pain relief device for limb joints, when relieving pain in the patient's joints, the two universal ball structures connected to the massage unit and the mounting base, as well as the guide seat movably connected to the universal ball structures, ensure that the massage unit and the mounting base can be guided and supported when they are tilted and rotated to massage the joints. This ensures that the massage head at the bottom of the massage unit is always firmly attached to the patient's joint throughout the massage process, thereby improving the massage effect on the patient's joints. 3. In the adjustable and controllable temperature pain relief device for limb joints, when massaging the painful joints of the patient, the upper and lower sides of the patient's arms or thighs can be tightened and fixed by the movable binding rope and the lifting and moving positioning sleeve to ensure that the patient's arms or thighs can be fixed together with the device. This ensures that the device will not slip off when massaging the patient's joints to eliminate pain. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the invention from a bottom view; Figure 3 This is a schematic diagram of the connection between the joint adjustment component and the binding rope of the present invention; Figure 4 This is an exploded view of the joint adjustment component and the binding rope connection of the present invention; Figure 5 This is a schematic diagram of the connection between the outer shell of the device and the controllable joint relief structure of the present invention; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram of region A in the middle; Figure 7 This is a cross-sectional structural diagram showing the connection between the outer shell of the device and the controllable joint relief structure of the present invention; Figure 8 This is a schematic diagram of the connection between the worm gear drive assembly and the gear structure of the present invention; Figure 9 This is a cross-sectional schematic diagram of the pain relief structure of the present invention; In the picture: 10. Equipment casing; 20. Joint adjustment assembly; 200. Positioning protrusion; 201. Side mounting base; 202. Assembly plate; 2021. Angle positioning block; 2022. Threaded block; 2023. Threaded rod; 2024. Rotating disk; 2025. Lower pressure sleeve; 2026. Guide rod; 203. Positioning sleeve; 30. Binding rope; 40. Controllable joint relief structure; 401. Worm gear drive assembly; 402. Gear structure; 403. Pain relief structure; 404. Universal joint assembly; 4011. Small drive source; 4012. Drive belt; 4013. Rotating shaft; 4014. Rotating worm gear; 4015. Worm wheel; 4021, First gear; 4022, Second gear; 4023, Third gear; 4024, Movable gear; 4031, connecting rod; 4032, lower connecting seat; 4033, mounting seat; 40331, inclined rod; 40332, massage unit; 40333, massage head; 4034, inner mounting block; 4035, outer protrusion; 4041. Universal ball structure; 4042. Extended protrusion; 4043. Guide seat. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] Please see Figures 1-9The adjustable and controllable temperature pain relief device for limb joints includes a device housing 10; joint adjustment components 20 mounted on the left and right sides of the device housing 10 by screws; binding ropes 30 mounted on the outside of the joint adjustment components 20 by positioning protrusions 200; and a controllable joint relief structure 40 disposed inside the device housing 10 and extending to the outside. The controllable joint relief structure 40 includes: a worm gear drive assembly 401 mounted on the top of the device housing 10 and extending to the inside; a gear structure 402 meshing with the worm gear drive assembly 401 and movably disposed inside the device housing 10; pain relief structures 403 connected to the gear structure 402 and movably disposed on both sides of the bottom of the device housing 10; and a universal joint assembly 404 rotatably connected to the pain relief structure 403 and mounted on the bottom of the device housing 10.

[0020] The working principle is as follows: When massaging the joints of a patient's limbs to relieve joint pain, firstly, place the patient's arm or thigh inside the binding rope 30, and use the binding rope 30 to position the device housing 10 directly above the joint (at this time, the patient's joint is in an extended state). Then, through the joint adjustment component 20, the controllable joint relief structure 40 is installed on top of the joint. Next, the worm gear drive component 401 is activated, causing the gear structure 402 connected to the worm gear drive component 401 to operate, which in turn drives the pain relief structure 403 connected to the gear structure 402 to operate, massaging the patient's joint area that is in contact with the pain. The heat provided by the pain relief structure 403 during the massage, combined with the heat generated by the pain relief structure 403 in contact with the joint, ensures the effectiveness of the massage.

[0021] In this solution, the universal movable component 404 is designed to guide and connect the pain relief structure 403 in the active state, ensuring support when relieving pain in the patient's joints, reducing the probability of deformation of the pain relief structure 403 during activity due to compression at the joint, and providing a more stable joint pain relief operation.

[0022] For details, please refer to the following: Figure 3 and Figure 4 The joint adjustment assembly 20 includes: side mounting bases 201 installed on the left and right sides of the equipment housing 10; assembly plate 202 installed on the side of the side mounting base 201; and positioning sleeves 203 installed on the left and right sides of the assembly plate 202. The top of the assembly plate 202 has multiple positioning protrusions 200 on both sides, and the inner side of the positioning sleeve 203 is fitted with a binding rope 30.

[0023] In this design, multiple angle positioning blocks 2021 are provided at the included angles of the assembly plate 202. A threaded block 2022 located on the side of the positioning protrusion 200 is provided at the center of the assembly plate 202. A threaded rod 2023 is threadedly connected to the inside of the threaded block 2022. A rotating disk 2024 is installed on the top of the threaded rod 2023. A lower pressure sleeve 2025 is rotatably connected to the outer side of the bottom of the threaded rod 2023. The lower pressure sleeve 2025 is located inside the binding rope 30. Guide rods 2026 are connected to the left and right sides of the top of the lower pressure sleeve 2025. The guide rods 2026 are provided through the assembly plate 202 and are located on the left and right sides of the threaded rod 2023.

[0024] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when the device is worn by a patient, the patient's arm or thigh is first secured by the binding rope 30. During actual wear, the rotating disk 2024 rotates, causing the threaded rod 2023 connected to the bottom of the rotating disk 2024 to rotate, and the pressure sleeve 2025 connected to the bottom of the threaded rod 2023 to move up and down, pressing down and securing the top of the patient's arm or thigh to ensure a secure fit.

[0025] For details, please refer to the following: Figure 7 and Figure 8 The worm drive assembly 401 includes: a small drive source 4011 mounted on one side of the top of the equipment housing 10; a transmission belt 4012 connected to the output end of the small drive source 4011 via a synchronous pulley and extending into the interior of the equipment housing 10; a rotating shaft 4013 connected to the inner side of the transmission belt 4012 via a synchronous pulley and rotatably connected inside the equipment housing 10; a rotating worm 4014 mounted on the outer side of the rotating shaft 4013; and worm wheels 4015 meshing with the left and right sides of the rotating worm 4014 and rotatably connected to the left and right sides inside the equipment housing 10, wherein a gear structure 402 is connected to the coaxial end of the worm wheel 4015.

[0026] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when relieving pain in a patient's joints, a small drive source 4011 is activated, driving a transmission belt 4012 connected to the outer side of the output end of the small drive source 4011 via a synchronous pulley, and causing a rotating shaft 4013 connected to the inner side of the transmission belt 4012 via a synchronous pulley to rotate. When the rotating shaft 4013 rotates, the worm gear 4014 mounted on its outer side rotates, causing the worm wheels 4015 meshing on the left and right sides of the rotating worm gear 4014 to rotate continuously (unidirectional rotation).

[0027] For details, please refer to the following: Figure 7 and Figure 8The gear structure 402 includes: a first gear 4021 coaxially connected to the worm gear 4015 and rotatably connected inside the device housing 10; a second gear 4022 meshing with the first gear 4021 and rotatably connected inside the device housing 10; a third gear 4023 meshing with the second gear 4022 and rotatably connected inside the device housing 10; and a movable gear 4024 meshing with the side of the third gear 4023 and rotatably connected inside the device housing 10, wherein a pain relief structure 403 is installed inside the movable gear 4024.

[0028] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when the worm gear 4015 rotates, the first gear 4021 coaxially connected to it will rotate accordingly, causing the second gear 4022, which is meshed with the outer side of the first gear 4021, to rotate. Simultaneously, when the second gear 4022 rotates, the third gear 4023, which is meshed with its side, will rotate, causing the movable gear 4024, which is meshed with the third gear 4023, to rotate (unidirectionally).

[0029] For details, please refer to the following: Figure 6 and Figure 9 The pain relief structure 403 includes: a connecting rod 4031 connected to the movable gear 4024 and extending to the bottom of the device housing 10; a lower connecting seat 4032 mounted on the bottom of the device housing 10 and rotatably connected to the connecting rod 4031; an assembly seat 4033 movably connected to the bottom of the lower connecting seat 4032; an inner mounting block 4034 mounted inside the assembly seat 4033 and connected to the connecting rod 4031; and an outer protrusion 4035 mounted on the outer side of the assembly seat 4033, wherein a universal joint assembly 404 is connected to the outer side of the outer protrusion 4035.

[0030] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when the movable gear 4024 rotates, the connecting rod 4031, which is installed through its inner side, will rotate, causing the mounting base 4033, which is eccentrically connected to the bottom of the connecting rod 4031, to rotate obliquely at the bottom of the lower connecting base 4032. The design of the inner mounting block 4034 ensures the stability and firmness of the connection between the connecting rod 4031 and the mounting base 4033.

[0031] For details, please refer to the following: Figure 6 and Figure 9 The bottom of the mounting base 4033 is equipped with a diagonal rod 40331, and the bottom of the diagonal rod 40331 is snapped and fixed with a massage unit 40332. The massage unit 40332 is equipped with a heating module inside, and multiple massage heads 40333 are installed at the bottom of the massage unit 40332. The massage heads 40333 are electrically connected to the heating module and generate heat through the heating module.

[0032] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when the mounting base 4033 is tilted, the inclined rod 40331 and the massage unit 40332 connected to the mounting base 4033 can tilt synchronously, driving the multiple massage heads 40333 mounted at the bottom of the massage unit 40332 to move, massaging the patient's joints to relieve joint pain. Simultaneously, the internal heating module of the massage unit 40332 generates heat from the massage heads 40333, heating the massaged joint area and enhancing the massage effect.

[0033] Referring specifically to Figure 6, the universal movable component 404 includes: two universal ball structures 4041 rotatably connected to the left and right sides of the outer protrusion 4035, the two universal ball structures 4041 being rotatably connected; an extension protrusion 4042 connected to the universal ball structure 4041; and guide seats 4043 slidably connected to the extension protrusion 4042 and installed on both sides of the bottom of the equipment housing 10.

[0034] In the adjustable and controllable temperature pain relief device for limb joints of the present invention, when the mounting base 4033 is tilted and rotated, the protruding part 4035 mounted on the side of the mounting base 4033 will simultaneously rotate eccentrically, driving the universal ball structure 4041 connected to the protruding part 4035 to move. When the universal ball structure 4041 is moving, another universal ball structure 4041 rotatably connected to its side can operate, and the other universal ball structure 4041 can slide inside the guide seat 4043, guiding the movement of the mounting base 4033 and ensuring the stability of the mounting base 4033 during movement.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0036] The terms “center,” “longitudinal,” “lateral,” “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 merely simplified descriptions for the convenience of describing the present invention 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 limiting the scope of protection of the present invention.

[0037] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. A temperature-adjustable and controllable pain relief device for limb joints, characterized in that, include: Equipment housing (10); joint adjustment assemblies (20) mounted on the left and right sides of the equipment housing (10) by screws; binding ropes (30) mounted on the outside of the joint adjustment assemblies (200) by positioning protrusions (200); controllable joint relief structure (40) disposed inside the equipment housing (10) and extending to the outside. The controllable joint relief structure (40) includes: a worm gear drive assembly (401) mounted on the top of the device housing (10) and extending to the inside; a gear structure (402) meshing with the worm gear drive assembly (401) and movably disposed inside the device housing (10); a pain relief structure (403) connected to the gear structure (402) and movably disposed on both sides of the bottom of the device housing (10); and a universal joint assembly (404) rotatably connected to the pain relief structure (403) and mounted on the bottom of the device housing (10).

2. The adjustable and controllable temperature pain relief device for limb joints according to claim 1, characterized in that: The joint adjustment assembly (20) includes: side mounting bases (201) installed on the left and right sides of the equipment housing (10); assembly plates (202) installed on the side of the side mounting bases (201); mounting plates (202) installed on the assembly plates (202); and positioning sleeves (203) installed on the left and right sides of the assembly plates (202). The assembly plate (202) has multiple positioning protrusions (200) on both sides of its top, and the positioning sleeve (203) has a binding rope (30) on its inner side.

3. The adjustable and controllable temperature pain relief device for limb joints according to claim 2, characterized in that: Multiple angle positioning blocks (2021) are provided at the included angle of the assembly plate (202). A threaded block (2022) located on the side of the positioning protrusion (200) is provided at the center of the assembly plate (202). A threaded rod (2023) is threadedly connected to the inside of the threaded block (2022). A rotating disk (2024) is installed on the top of the threaded rod (2023). The threaded rod (2023) has a lower pressure sleeve (2025) rotatably connected to the outer side of its bottom, and the lower pressure sleeve (2025) is located inside the binding rope (30).

4. The adjustable and controllable temperature pain relief device for limb joints according to claim 3, characterized in that: Guide rods (2026) are connected to the left and right sides of the top of the lower pressure sleeve (2025). The guide rods (2026) are arranged through the assembly plate (202) and are located on the left and right sides of the threaded rod (2023).

5. The adjustable and controllable temperature pain relief device for limb joints according to claim 4, characterized in that: The worm drive assembly (401) includes: a small drive source (4011) mounted on one side of the top of the device housing (10); a transmission belt (4012) connected to the output end of the small drive source (4011) via a synchronous pulley and extending into the inside of the device housing (10); a rotating shaft (4013) connected to the inside of the transmission belt (4012) via a synchronous pulley and rotatably connected inside the device housing (10); a rotating worm (4014) mounted on the outside of the rotating shaft (4013); and worm wheels (4015) meshing with the left and right sides of the rotating worm (4014) and rotatably connected to the left and right sides inside the device housing (10). The worm gear (4015) is connected to a gear structure (402) on its coaxial end.

6. The adjustable and controllable temperature pain relief device for limb joints according to claim 5, characterized in that: The gear structure (402) includes: a first gear (4021) coaxially connected to the worm gear (4015) and rotatably connected inside the equipment housing (10); a second gear (4022) meshing with the first gear (4021) and rotatably connected inside the equipment housing (10); a third gear (4023) meshing with the second gear (4022) and rotatably connected inside the equipment housing (10); and a movable gear (4024) meshing with the side of the third gear (4023) and rotatably connected inside the equipment housing (10). The movable gear (4024) is equipped with a pain relief structure (403).

7. The adjustable and controllable temperature pain relief device for limb joints according to claim 6, characterized in that: The pain relief structure (403) includes: a connecting rod (4031) connected to the movable gear (4024) and extending to the bottom of the device housing (10); a lower connecting seat (4032) installed at the bottom of the device housing (10) and rotatably connected to the connecting rod (4031); an assembly seat (4033) movably connected to the bottom of the lower connecting seat (4032); an inner mounting block (4034) installed inside the assembly seat (4033) and connected to the connecting rod (4031); and an outer protrusion (4035) installed on the outside of the assembly seat (4033). The outer side of the protrusion (4035) is connected to a universal joint assembly (404).

8. The adjustable and controllable temperature pain relief device for limb joints according to claim 7, characterized in that: The bottom of the mounting base (4033) is equipped with a diagonal rod (40331), and a massage unit (40332) is snapped and fixed at the bottom of the diagonal rod (40331). The massage unit (40332) is equipped with a heating module inside, and multiple massage heads (40333) are installed at the bottom of the massage unit (40332). The massage heads (40333) are electrically connected to the heating module and generate heat through the heating module.

9. The adjustable and controllable temperature pain relief device for limb joints according to claim 7, characterized in that: The universal movable component (404) includes: a universal ball structure (4041) rotatably connected to the left and right sides of the external protrusion (4035), two universal ball structures (4041) are provided and the two universal ball structures (4041) are rotatably connected; an extension protrusion (4042) connected to the universal ball structure (4041); and guide seats (4043) slidably connected to the extension protrusion (4042) and installed on both sides of the bottom of the equipment housing (10).

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