A red light therapy instrument

Abstract

The application relates to a red light treatment instrument and relates to the technical field of intelligent physiotherapy equipment, and comprises a bottom plate, a shell fixed to one side of the bottom plate, a circuit board fixed to the inner wall of the shell, a control screen for controlling the circuit board fixed to the outer peripheral surface, a plurality of LED lamp beads integrated with red light and infrared double chips uniformly arranged in a matrix form on the side of the circuit board away from the bottom plate, a mounting hole coaxial with each LED lamp bead is formed in the side of the shell away from the bottom plate, a protective lens is detachably mounted in the mounting hole, a spotlight lens with an emission angle of 12 degrees is fixed to the circuit board and covers the outside of the LED lamp beads, a conical light guide part with the same material as the protective lens and extending into the spotlight lens is integrally formed on the side of the protective lens facing the circuit board, and a gap is formed in the conical light guide part for accommodating the LED lamp beads. In the application, the light beams of the LED lamp beads arranged in a matrix form can be overlapped with each other to form a light-emitting plane after light distribution of the spotlight lens, so that the use requirement is met.

Description

Technical Field

[0001] This application relates to the technical field of intelligent physiotherapy equipment, and in particular to a red light therapy instrument. Background Technology

[0002] Optical therapy, as a non-invasive physical treatment method, is widely used in skin repair, pain relief, and inflammation improvement due to its safety, convenience, and minimal side effects. Among these applications, dual-band synergistic therapy using red and infrared light is currently the mainstream technology: red light (e.g., 660nm band) promotes skin cell metabolism and tissue repair, while infrared light (e.g., 850nm band) has stronger penetrating power, reaching deep into subcutaneous tissue to improve blood circulation and relieve muscle strain. To simplify equipment structure and optimize optical path design, the industry commonly uses LED beads that integrate both red and infrared chips, encapsulating both light-emitting units within the same bracket and sharing a lens to achieve dual-wavelength beam distribution and mixing. This allows for the simultaneous provision of both therapeutic wavelengths with a single LED bead, meeting the needs of dual-band synergistic therapy.

[0003] In existing technologies, typical red light therapy devices mainly include a base plate and a housing fixed to one side of the base plate with screws. A circuit board carrying the circuitry is installed on the inner wall of the housing. Several dual-chip LED beads are evenly distributed on the side of the circuit board away from the base plate. Mounting holes coaxial with each LED bead are opened on the side of the housing away from the base plate. Protective lenses, made of optical glass, are embedded in the inner wall of these mounting holes. These lenses combine light transmission and protection, allowing efficient transmission of red and infrared light emitted by the LED beads while blocking external dust, moisture, and liquids from entering the housing. This prevents contamination or damage to core components such as the LED beads and circuit board, ensuring long-term stable operation of the equipment. Therefore, they are widely used in various optical therapy devices.

[0004] However, the existing technical solutions still have significant drawbacks: In actual physiotherapy applications, the light emitted by all LED beads is directly projected onto the treatment area through the protective lens. However, due to the physical installation gaps between adjacent LED beads and the limited light emission angle of the beads, the light spots projected by each bead cannot completely overlap and cover each other. This results in shadow areas with significantly lower light intensity than required for treatment between adjacent light spots. These shadow areas cannot receive sufficient red and infrared light, leading to uneven illumination of the treatment area. This not only reduces the overall physiotherapy effect but may also affect the consistency and reliability of treatment due to insufficient local illumination, failing to meet the clinical requirements for uniform light therapy. Therefore, improvements to the existing technology are urgently needed. Summary of the Invention

[0005] The purpose of this application is to provide a red light therapy instrument that solves the problems of existing red light therapy equipment, such as shadows in the irradiation area, uneven light reception, and poor therapeutic effect due to the limitations of the spacing between lamp beads and the light emission angle.

[0006] The red light therapy device provided in this application adopts the following technical solution: A red light therapy device includes a base plate and a housing fixed to one side of the base plate. A circuit board is fixed to the inner wall of the housing, and a control panel with a control circuit board is fixed to the outer peripheral surface. A plurality of LED beads integrating red light and infrared dual chips are evenly arranged in a matrix on the side of the circuit board away from the base plate. The side of the housing away from the base plate has mounting holes coaxial with each LED bead, and a protective lens can be detachably installed in the mounting holes. A focusing lens with an emission angle of 12 degrees is fixed to the circuit board and covers the outside of the LED beads. A conical light guide with the same material as the protective lens and extending into the focusing lens is integrally formed on the side of the protective lens facing the circuit board. A clearance notch is opened on the conical light guide for the LED beads to be inserted. After the matrix-arranged LED beads are distributed by the focusing lens, the beams can overlap to form a light-emitting plane.

[0007] By adopting the above technical solution, the 12-degree emission angle focusing lens can accurately distribute the red and infrared light emitted by the LED beads. The conical light guide can further conduct and regulate the beam. Combined with the matrix-arranged dual-chip LED beads, the beams overlap to form a uniform light-emitting plane, which completely solves the problem of irradiation shadows caused by the gap between the beads and the light emission angle of the existing equipment. It improves the uniformity of light received by the treatment area, ensures the synergistic physiotherapy effect of dual-band, enhances the consistency and reliability of treatment, and meets the clinical needs for uniform light therapy.

[0008] Optionally, the base plate has several air inlets away from the control panel and several air outlets near the control panel. A downward-facing protective cover is fixed on the inner opening edge of the air inlets and air outlets, and an exhaust fan is fixed on the inner side of the base plate near the air outlet.

[0009] By adopting the above technical solution, the exhaust fan, once activated, draws cool external air into the housing through the inlet and then exhausts the heated internal gas through the outlet, achieving gas circulation inside and outside the housing. This quickly removes the heat generated by the circuit board and LED beads during operation, preventing components from being damaged due to overheating. The protective cover prevents external dust and debris from entering the housing, keeping the internal core components clean, ensuring long-term stable operation of the equipment, and extending its service life.

[0010] Optionally, a gripping notch is fixedly provided on the base plate near the outer edge of the control screen.

[0011] By adopting the above technical solution, the grip notch conforms to the human hand grip posture, making it easier for users to stably grasp the equipment when it is being moved, transported, or temporarily repositioned. This avoids slipping or slipping during transport, reduces the risk of equipment damage from impacts, saves transport effort, improves the operating experience, and meets the actual use needs of short-distance equipment movement.

[0012] Optionally, the base plate is provided with a mounting plate and a mounting rod vertically fixed on the mounting plate. The mounting plate has several through holes. The back side of the base plate is fixed with a fixing screw that is the same number as the through holes and passes through the through holes. The outer periphery of the fixing screw is threaded with a fixing nut.

[0013] By adopting the above technical solution, workers can fix the mounting plate in the designated position through the through holes on the mounting plate, and then detachably connect it to the external support structure through the mounting rod. The installation and fixing of the equipment can be completed without damaging the main structure of the equipment. It can adapt to different installation scenarios and is convenient for installation and disassembly, which facilitates the later maintenance, repair and relocation of the equipment.

[0014] Optionally, the outer shell is equipped with a locking device. Two connecting rods are rotatably connected side-by-side on opposite sides of the back of the base plate. Fixed rods are vertically fixed on the end faces of the two connecting rods away from the base plate. A protective plate is provided on the outer shell of the base plate between the two fixed rods on the same side. The outer peripheral surfaces of the ends of the two fixed rods on the same side away from the connecting rods are rotatably connected to the two sides opposite to the protective plate. The connecting rods on both sides can rotate in opposite directions to abut against the two opposite outer sides of the shell. At this time, the fixed rods rotate to abut against the front side of the shell. The protective plate can then rotate to a protective state parallel to and abut against the front side of the shell and be fixed by the locking device. The connecting rods on both sides can rotate in opposite directions to a coaxial state abut against the back of the base plate. At this time, the two fixed rods rotate to a state perpendicular to the back of the base plate. The two protective plates can then rotate to an unfolded state parallel to the back of the base plate and be fixed by the locking device. The sides of the two protective plates and fixed rods away from the base plate can abut against the ground when the instrument needs to be temporarily placed.

[0015] By adopting the above technical solution, dual protection and convenient support can be achieved for equipment transportation and temporary placement. During transportation, the protective plate can be fixed in a protective state to protect the front of the housing from impacts; during temporary placement, the protective plate can be unfolded into a supporting state, working with the fixing rod to support the equipment on the ground, preventing the equipment from directly contacting the ground and causing wear. The rotating design of the connecting rod makes switching between the two states convenient, and the locking mechanism ensures stability, improving the safety of equipment transportation and the flexibility of use.

[0016] Optionally, the locking component includes a central rod and locking blocks vertically fixed to the outer periphery of both ends of the central rod. The protective plates are telescopic structures with elastic elongation properties. When the two protective plates are in the protective state, their sides that are close to each other are elastically pressed together. When the two protective plates are in the protective state, a first slot for the locking blocks to be inserted is provided on the side away from the shell. When the two protective plates are in the unfolded state, a second slot for the locking blocks to be inserted is provided on the side facing the bottom plate.

[0017] By adopting the above technical solution, the telescopic protective plate can be elastically pressed together in the protective state, improving the fit and protective effect; the first slot and the second slot correspond to the protective plate in the protective and unfolded states, respectively. After the locking block is inserted into the slot, the protective plate can be quickly fixed to prevent it from rotating accidentally, ensuring the reliability of protection during transportation and the stability of support during temporary placement. The structure is simple, the locking is convenient, and the ease of operation of the equipment is improved.

[0018] Optionally, a guide slope is provided on the outer edge of the side of the locking block away from the intermediate rod.

[0019] By adopting the above technical solution, the guide ramp can play a guiding role when the locking block is inserted into the slot. Without the need for precise alignment with the slot, the ramp can guide the locking block to slide smoothly into the slot, reducing the difficulty of the locking operation and saving operation time.

[0020] Optionally, when the two protective plates are in the unfolded state, arc-shaped notches are provided on the sides that are far apart from each other; when the instrument is installed and used, the two protective plates can be rotated to a limited state where they elastically abut against each other and are parallel to the back side of the base plate and are fixed by locking components. At this time, the two arc-shaped notches form an arc-shaped cavity that is fitted on the outer periphery of the mounting rod.

[0021] By adopting the above technical solution, the protective plate can be rotated to the limit position and locked during equipment installation. The two arc-shaped notches form an arc-shaped cavity around the outer periphery of the mounting rod, which can form a circumferential limit on the mounting rod, restrict the shaking of the mounting rod, improve the connection stability between the mounting plate and the base plate, and thus enhance the overall installation firmness of the equipment. This prevents the equipment from shifting or loosening due to vibration during use, ensuring the smooth progress of physiotherapy.

[0022] Optionally, a third slot is provided on both protective plates, and two locking blocks are inserted into the third slot on the two protective plates respectively when the two protective plates are in the limited position.

[0023] By adopting the above technical solution, when the protective plate rotates to the limit state parallel to the back side of the base plate, the locking block is inserted into the third slot, which can firmly fix the protective plate in this state, prevent its accidental rotation, ensure that the arc-shaped notch always stably surrounds the mounting rod, and guarantee the auxiliary fixing effect. At the same time, the third slot cooperates with the first and second slots, so that the locking component can be adapted to the three working states of the protective plate, improving the versatility and practicality of the locking structure.

[0024] Optionally, an elastic pad is fixed on the inner wall of the arc-shaped notch.

[0025] By adopting the above technical solution, the elastic pad has good elasticity and cushioning effect. When it is pressed against the outer circumference of the mounting rod, it can increase the friction between the two, effectively prevent the mounting rod from sliding between the arc notch and improve the installation stability of the equipment.

[0026] In summary, this application includes the following beneficial technical effects: In this application, the 12-degree emission angle focusing lens can accurately distribute the red and infrared light emitted by the LED beads, and the tapered light guide can further conduct and regulate the beam. Combined with the matrix-arranged dual-chip LED beads, the beams overlap to form a uniform light-emitting plane, which completely solves the problem of irradiation shadows caused by the gap between the beads and the light emission angle of the existing equipment, improves the uniformity of light received by the treatment area, ensures the synergistic physiotherapy effect of dual-band, enhances the consistency and reliability of treatment, and meets the clinical needs for uniform light irradiation therapy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram illustrating the distribution of the air inlet and outlet in Embodiment 1 of this application; Figure 3 This is a cross-sectional structural diagram illustrating the installation and fit of the protective lens in Embodiment 1 of this application; Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 6 This is an exploded structural diagram illustrating the installation distribution of the base plate and mounting plate in Embodiment 2 of this application; Figure 7 This is a schematic diagram illustrating the installation and cooperation of the connecting rod and the fixing rod in Embodiment 2 of this application; Figure 8 This is a schematic diagram illustrating the installation and assembly of the protective plate in Embodiment 2 of this application; Figure 9 This is a cross-sectional structural diagram illustrating the installation and mating of the locking component in Embodiment 2 of this application; Figure 10 This is a cross-sectional view of Embodiment 2 of this application illustrating the installation and cooperation of the intermediate rod and the locking block; Figure 11 yes Figure 10 Enlarged schematic diagram of part B; Figure 12 This is a schematic diagram illustrating the installation and cooperation of the fixing rod and the protective plate in Embodiment 2 of this application; Figure 13 This is a schematic diagram illustrating the installation and cooperation of the locking element and the protective plate in Embodiment 2 of this application.

[0028] In the diagram: 1. Base plate; 11. Grip notch; 12. Air inlet; 13. Air outlet; 131. Protective cover; 14. Exhaust fan; 15. Fixing screw; 16. Fixing nut; 2. Housing; 21. Mounting hole; 3. Illumination component; 31. Circuit board; 32. Control panel; 33. LED beads; 34. Protective lens; 341. Conical light guide; 342. Clearance notch; 35. Condensing lens; 4. Mounting plate; 41. Mounting rod; 5. Locking component; 51. Middle rod; 52. Locking insert; 521. Guide slope; 6. Connecting rod; 7. Fixing rod; 8. Protective plate; 81. First slot; 82. Second slot; 83. Third slot; 84. Arc-shaped notch; 85. Elastic pad. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings. Example

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A red light therapy device includes a base plate 1, a housing 2 fixed to one side of the base plate 1 by screws, and a light irradiation component 3 disposed inside the housing 2. The light irradiation component 3 includes a circuit board 31 fixed to the inner wall of the housing 2 and a control screen 32 disposed on the outer peripheral surface of the housing 2 for controlling the circuit board 31. A plurality of LED beads 33 integrating red light and infrared dual chips are evenly arranged in a matrix on the side of the circuit board 31 away from the base plate 1. The side of the housing 2 away from the base plate 1 has mounting holes 21 coaxial with each LED bead 33, and a protective lens 34 can be detachably installed in the mounting holes 21. A focusing lens 35 with an emission angle of 12 degrees is fixedly mounted on the circuit board 31, covering the outside of the LED beads. A tapered light guide 341 of the same material as the protective lens 34 and extending into the focusing lens 35 is integrally formed on the side of the protective lens 34 facing the circuit board 31. A clearance notch 342 for inserting the LED beads 33 is provided on the tapered light guide 341. A grip notch 11 is fixedly mounted on the outer edge of the base plate 1 near the control screen 32. When this therapeutic instrument is used, the LED beads 33 arranged in a matrix are distributed by a focusing lens 35. The combined setting of the focusing lens 35 and the protective lens 34 allows the light beams to overlap and form a light-emitting plane, ensuring light uniformity. When the therapeutic instrument needs to be moved, the user's hand can be placed in the grip notch 11 for better short-distance movement.

[0031] Reference Figure 2 , Figure 3The base plate 1 has several air inlets 12 far from the control panel 32 and several air outlets 13 near the control panel 32. The inner opening edges of the air inlets 12 and air outlets 13 are fixed with downward-facing protective covers 131. The inner side of the base plate 1 near the air outlets 13 is fixed with an exhaust fan 14 with a built-in small fan. When the therapeutic instrument is used, the exhaust fan 14 is activated simultaneously to draw external gas into the housing 2 from the air inlet 12, and then discharge the original gas inside from the air outlet 13, thus forming a gas circulation and ensuring the corresponding heat dissipation performance.

[0032] The implementation principle of this application embodiment is as follows: During normal treatment, the LED beads (integrating red and infrared dual chips) arranged in a matrix on the circuit board 31 are activated. The light is distributed by the focusing lens 35 and then conducted through the conical light guide 341 of the protective lens 34. The beams overlap to form a uniform light-emitting plane. Simultaneously, the exhaust fan 14 on the bottom plate 1 near the inside of the air outlet 13 is activated. External air enters the housing 2 through the air inlet 12, and internal air is discharged through the air outlet 13. The protective cover 131 inside the air inlet 12 and the air outlet 13 prevents foreign objects from entering, forming a gas circulation to achieve heat dissipation. Example

[0033] Reference Figure 5 and Figure 6 The difference between this embodiment and Embodiment 1 is that the base plate 1 is provided with an mounting plate 4 and a mounting rod 41 vertically fixed on the mounting plate 4. The mounting plate 4 has four through holes. The back side of the base plate 1 is fixed with a fixing screw 15 that is the same number as the through holes and passes through the through holes. The outer periphery of the fixing screw 15 is threaded with a fixing nut 16. When the staff needs to install the treatment instrument in a certain position, they first use the fixing screw 15 and fixing nut 16 to complete the installation of the mounting plate 4. Then, the mounting plate 4 can be detachably connected to the mounting rod 41 through the external support structure, so as to achieve the installation support of the treatment instrument without damaging it.

[0034] Reference Figure 7 and Figure 8 The outer shell 2 is provided with a locking member 5. Two connecting rods 6 are rotatably connected side by side on the opposite sides of the back of the bottom plate 1. Fixed rods 7 are vertically fixed on the end faces of the two connecting rods 6 away from the bottom plate 1. A protective plate 8 is provided on the outside of the bottom plate 1 between the two fixed rods 7 on the same side. The outer peripheral surfaces of the ends of the two fixed rods 7 on the same side away from the connecting rods 6 are rotatably connected to the two sides opposite to the protective plate 8. During the packaging and transportation of the treatment instrument, the connecting rods 6 on both sides are rotated to a parallel position that abuts against the two outer sides of the housing 2. The fixing rod 7 is then rotated to abut against the front side of the housing 2. The protective plate 8 can then be rotated to a protective position that is parallel to and abuts against the front side of the housing 2 and fixed by the locking piece 5. In this way, the two protective plates 8 are used to protect the front side of the housing 2 from impact. When the treatment instrument needs to be temporarily placed on the ground, the connecting rods 6 on both sides are rotated to a coaxial state that abuts against the back of the base plate 1. The two fixing rods 7 are then rotated to a state perpendicular to the back of the base plate 1. The two protective plates 8 are then rotated to an unfolded state parallel to the back of the base plate 1 and fixed with locking parts 5. Then the treatment instrument is flipped over so that the two protective plates 8 and fixing rods 7 are abutted against the ground on the side away from the base plate 1.

[0035] Reference Figure 9 , Figure 10 and Figure 11 The locking component 5 includes a middle rod 51 and locking blocks 52 vertically fixed on the outer periphery of both ends of the middle rod 51. The locking blocks 52 have a guide slope 521 on the outer edge of the side away from the middle rod 51. The protective plate 8 is a plate-shaped telescopic structure with an internal spring and elastic elongation performance. When the two protective plates 8 are in the protective state, their sides that are close to each other are elastically pressed together. When the two protective plates 8 are in the protective state, a first slot 81 is opened on the side away from the housing 2. When the two protective plates 8 are in the unfolded state, a second slot 82 is opened on the side facing the bottom plate 1. When the two protective plates 8 are in the protective state, the sides of the two protective plates 8 that are close to each other are elastically pressed together, and the two locking blocks 52 are inserted into the two corresponding first slots 81, thereby achieving the limiting and fixing of the two protective plates 8 in this state; when the two protective plates 8 are in the unfolded state, the two locking blocks 52 are inserted into the two corresponding second slots 82, thereby achieving the limiting and fixing of the two protective plates 8 in this state.

[0036] Reference Figure 10 , Figure 12 and Figure 13 When the two protective plates 8 are in the unfolded state, an arc-shaped notch 84 is provided on the side that is far apart from each other. An elastic pad 85 made of rubber is fixed on the inner wall of the arc-shaped notch 84. A third slot 83 is provided on the two protective plates 8. When the instrument is installed and used, the two protective plates 8 can rotate to a limited state where they elastically abut against each other and are parallel to the back side of the base plate 1. At this time, the two locking blocks 52 are respectively inserted into the third slots 83 on the two protective plates 8. The two arc-shaped notches 84 are then arranged to form an arc-shaped cavity on the outer periphery of the mounting rod 41. The elastic pad 85 abuts against the outer periphery of the mounting rod 41, thereby improving the installation stability between the mounting plate 4 and the base plate 1.

[0037] The implementation principle of this application embodiment is as follows: When the red light therapy instrument is packaged and shipped separately, the connecting rods 6 on both sides of the back of the base plate 1 are rotated in opposite directions until they abut against the two opposite outer sides of the housing 2 and are in a parallel state. The fixing rod 7 then rotates to abut against the front side of the housing 2, and the protective plate 8 is rotated to the protective state. The two locking blocks 52 of the locking member 5 are inserted into the first slot 81 of the two protective plates 8, and the protective plate 8 is fixed to form a protective state that protects the front side of the housing 2.

[0038] When the red light therapy device is temporarily placed on the ground, rotate the two connecting rods 6 in opposite directions until they are coaxial with the back of the base plate 1, rotate the fixing rod 7 to be perpendicular to the back of the base plate 1, rotate the protective plate 8 to be in an unfolded state parallel to the back of the base plate 1, insert the locking block 52 into the second slot 82 to fix it, and flip the device so that the protective plate 8 and the fixing rod 7 are away from the side of the base plate 1 and abut against the ground.

[0039] When installing and applying this red light therapy instrument, the operator first secures the mounting plate 4 through the four through holes using the fixing screws 15 and fixing nuts 16. Then, the external support structure is detachably connected to the mounting rod 41 on the mounting plate 4. Simultaneously, the two protective plates 8 rotate towards each other to their limit positions, and the locking block 52 of the locking piece 5 is inserted into the third slot 83 of the protective plate 8. The arc-shaped notches 84 of the two protective plates 8 form an arc-shaped cavity fitted onto the mounting rod 41, and the inner wall elastic pad 85 abuts against the mounting rod 41, completing the instrument installation.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A red light therapy instrument, comprising a base plate (1) and a housing (2) fixed to one side of the base plate (1), wherein a circuit board (31) is fixed to the inner wall of the housing (2) and a control screen (32) of the control circuit board (31) is fixed to the outer peripheral surface; a plurality of LED beads (33) integrating red light and infrared dual chips are evenly arranged in a matrix on the side of the circuit board (31) away from the base plate (1); the side of the housing (2) away from the base plate (1) is provided with mounting holes (21) coaxial with each LED bead (33), and a protective lens (34) is detachably installed in the mounting holes (21); Its features are, The circuit board (31) is fixed with a focusing lens (35) covering the outside of the LED beads and having an emission angle of 12 degrees. The protective lens (34) has a conical light guide (341) of the same material as the protective lens (34) and extending into the focusing lens (35) on the side facing the circuit board (31). The conical light guide (341) has a clearance notch (342) for the LED beads (33) to be inserted. After the matrix-arranged LED beads (33) are distributed by the focusing lens (35), the light beams can overlap to form a light-emitting plane.

2. The red light therapy instrument according to claim 1, characterized in that, The base plate (1) has several air inlets (12) far from the control panel (32) and several air outlets (13) near the control panel (32). The inner opening edges of the air inlets (12) and air outlets (13) are fixed with downward-facing protective covers (131). An exhaust fan (14) is fixed on the inner side of the base plate (1) near the air outlets (13).

3. The red light therapy instrument according to claim 1, characterized in that, The base plate (1) is provided with a grip notch (11) near the outer edge of the control panel (32).

4. The red light therapy instrument according to claim 1, characterized in that, The base plate (1) is provided with an mounting plate (4) and a mounting rod (41) vertically fixed on the mounting plate (4). The mounting plate (4) has several through holes. The back side of the base plate (1) is fixed with a number of fixing screws (15) that are the same as the number of through holes and pass through the through holes. The outer periphery of the fixing screws (15) is threaded with fixing nuts (16).

5. A red light therapy instrument according to claim 4, characterized in that, The shell (2) is provided with a locking member (5) on the outside. Two connecting rods (6) are rotatably connected side by side on the opposite sides of the back of the bottom plate (1). Fixed rods (7) are vertically fixed on the end faces of the two connecting rods (6) away from the bottom plate (1). A protective plate (8) is provided on the outside of the bottom plate (1) between the two fixed rods (7) on the same side. The outer peripheral surfaces of the ends of the two fixed rods (7) on the same side away from the connecting rods (6) are rotatably connected to the two sides opposite to the protective plate (8). The connecting rods (6) on both sides can rotate to a parallel state that abuts against the two outer sides of the housing (2), the fixing rod (7) rotates to a state that abuts against the front side of the housing (2), and the protective plate (8) can rotate to a protective state that is parallel to and abuts against the front side of the housing (2) and is fixed by the locking member (5). The connecting rods (6) on both sides can rotate to a coaxial state that abuts against the back of the base plate (1). The two fixing rods (7) rotate to a state perpendicular to the back of the base plate (1). The two protective plates (8) can rotate to an unfolded state that is parallel to the back of the base plate (1) and are fixed by locking parts (5). The sides of the two protective plates (8) and fixing rods (7) away from the base plate (1) can abut against the ground when the instrument needs to be temporarily placed.

6. A red light therapy instrument according to claim 5, characterized in that, The locking member (5) includes a middle rod (51) and locking blocks (52) vertically fixed on the outer periphery of both ends of the middle rod (51). The protective plate (8) is a telescopic structure with elastic elongation performance. When the two protective plates (8) are in the protective state, their sides are elastically pressed together. When the two protective plates (8) are in the protective state, a first slot (81) for inserting a locking block (52) is provided on the side away from the housing (2). When the two protective plates (8) are in the unfolded state, a second slot (82) for inserting a locking block (52) is provided on the side facing the bottom plate (1).

7. A red light therapy instrument according to claim 6, characterized in that, The locking plug (52) has a guide slope (521) on its outer edge away from the middle rod (51).

8. A red light therapy instrument according to claim 6, characterized in that, When the two protective plates (8) are in the unfolded state, arc-shaped notches (84) are provided on the sides that are far apart from each other; when the instrument is installed and used, the two protective plates (8) can rotate to each other to a limited state where they elastically abut against each other and are parallel to the back side of the base plate (1) and are fixed by locking parts (5). At this time, the two arc-shaped notches (84) form an arc-shaped cavity on the outer periphery of the mounting rod (41).

9. A red light therapy instrument according to claim 8, characterized in that, The two protective plates (8) are provided with a third slot (83), and the two locking blocks (52) are inserted into the third slot (83) on the two protective plates (8) respectively when the two protective plates (8) are in the limited state.

10. A red light therapy instrument according to claim 8, characterized in that, An elastic pad (85) is fixed on the inner wall of the arc-shaped notch (84).

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