A high frequency vibration physiotherapy bed

Abstract

The application discloses a high-frequency vibration physiotherapy bed, which comprises three structural units of a bottom frame, each unit being provided with an outer shell and three inner shells. The inner shells are internally provided with a driving motor, a driving shaft, a driven shaft and a belt transmission structure, an eccentric top block with long and short shaft ends is arranged on the shaft, a slide plate, a reset spring and a top rod are arranged above the top block, and the top block is matched with a vibration unit. The vibration unit is composed of an outer cylinder body, a slide rod, a top plate, a vibration spring, an inner slide block and a limiting step, the device is further provided with a gas guide pipe, a vent hole and a rotary blade for ventilation, and a buffer mechanism composed of an arc structure, a wavy line structure and double-layer buffer springs is arranged at the bottom of the support. The high-frequency vibration is realized by the eccentric structure and the flexible buffer, the operation is stable and the noise is small, the personalized physiotherapy requirements of multiple parts can be met, and the problems of uneven vibration, hard impact and low comfort of the traditional physiotherapy bed are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of physiotherapy bed technology, and more particularly to a high-frequency vibration physiotherapy bed. Background Technology

[0002] With the popularization of health and wellness concepts and the increasing demand for rehabilitation medicine, the vibration massage function of physiotherapy beds has become a core demand in the fields of home healthcare and clinical rehabilitation. This is because it can effectively relieve muscle fatigue and promote blood circulation by stimulating human muscle tissue and acupoints through high-frequency mechanical vibration. The precision, comfort, and stability of vibration massage directly determine the user experience and therapeutic effect of the physiotherapy bed, and represent a core direction for technological research and development in the industry.

[0003] Existing technology, patent number 202421076931.5, discloses a rhythmic massage bed, including a bed seat and a mattress. The mattress is installed at the top of the bed seat. A first lifting plate, a second lifting plate, and a third lifting plate are slidably installed on the inner wall of the top of the bed seat. A drive shaft is rotatably installed on the inner wall of one side of the bed seat. A first fixing block, a second fixing block, and a third fixing block are fixedly connected to the outer wall of the drive shaft. A first lifting rod is symmetrically arranged on the outer wall of the first fixing block, a second lifting rod is symmetrically arranged on the outer wall of the second fixing block, and a third lifting rod is symmetrically arranged on the outer wall of the third fixing block. The first lifting rod is symmetrically arranged below the first lifting plate, the second lifting rod is symmetrically arranged below the second lifting plate, and the third lifting rod is symmetrically arranged below the third lifting plate.

[0004] In the aforementioned technologies, the lifting rod is a rigid fixed structure, lacking mechanical vibration amplitude optimization design. During vibration transmission, the force is concentrated at the contact point of the lifting rod, resulting in poor vibration uniformity on the surface of the lifting plate. Furthermore, the massage protrusions directly and rigidly contact the human body, lacking gentleness, and long-term use can easily cause local pressure discomfort. Summary of the Invention

[0005] To address the above problems, the present invention provides a high-frequency vibration physiotherapy bed.

[0006] This invention addresses the problems of uneven vibration transmission and poor gentleness in existing rhythmic massage beds by providing a high-frequency vibration therapy bed. Through a flexible vibration transmission design and a composite buffer mechanism, it achieves the technical effects of personalized therapy, efficient vibration transmission, and low-noise operation. To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A high-frequency vibration physiotherapy bed comprises a bottom frame 100 and three structural units 200, all of which are fixed to the top side of the bottom frame 100. The core advantage of this design is that the three structural units 200 can respectively correspond to the head, torso, and lower limbs, enabling large-area zoned physiotherapy. Furthermore, each structural unit 200 is equipped with an independent drive system, ensuring that the vibration frequency and amplitude of the three areas of the body can be independently adjusted to suit the physiotherapy needs of different parts. This also facilitates the assembly, disassembly, and maintenance of the equipment, improving its applicability and flexibility of use.

[0007] Each structural unit 200 includes an outer shell 201. The outer shell 201 serves as the external protective structure of the structural unit 200, effectively protecting internal components from external dust and impurities, while also fixing and supporting the internal components. Inside any outer shell 201, three inner shells 202 are arranged in parallel. The beneficial effect is that the inner shells 202, together with the outer shell 201, form a double-layer protective structure, further enhancing the stability of the internal components and preventing external interference. Simultaneously, the three inner shells 202 within the same structural unit 200 share a single drive motor 11, ensuring coordinated vibration in local areas through a synchronous transmission structure, thus reducing equipment costs while ensuring consistency in physiotherapy.

[0008] Each inner housing 202 is equipped with a bracket 10, which provides fixed support for transmission components such as the drive motor 11, the drive shaft 12, and the driven shaft 13, ensuring the precise installation position of each transmission component and the smoothness of the transmission process. The drive motor 11 is fixed on the middle bracket 10, and the three structural units 200 are equipped with three drive motors 11, enabling independent drive for each structural unit 200. The drive motor 11 serves as the power source of the device, and its output end is connected to the drive shaft 12, driving the drive shaft 12 to rotate at high speed. Driven shafts 13 are installed on the brackets on both sides. The drive shaft 12 and the driven shaft 13 within the same inner housing 202 are connected by a belt 14. This ensures that the drive shaft 12 and driven shaft 13 within the same inner housing 202 rotate synchronously, thereby driving the top blocks to move synchronously, avoiding vibration misalignment, and achieving multi-axis synchronous rotation, providing stable power for subsequent vibration and ensuring the uniformity of the therapeutic effect.

[0009] Top blocks 15 are provided on the outer sides of both the active shaft 12 and the driven shaft 13. The top blocks 15 are designed with an eccentric structure, specifically including a long axis end H151 and a short axis end h152. The core beneficial effect is to achieve mechanical adjustment of vibration amplitude through the asymmetrical structure. When the active shaft 12 and the driven shaft 13 drive the top blocks 15 to rotate at high speed, the long axis end H151 and the short axis end h152 of the top blocks 15 act alternately on the slide plate 20, thereby pushing the slide plate 20 to move up and down reciprocatingly, providing vibration driving force for the vibration unit 31. At the same time, the top blocks 15 of different inner shells 202 within the same structural unit 200 can be set with different long axis / short axis ratios, such as long axis / short axis ratios of 1.1, 1.2, and 1.3, thereby achieving the differentiation of vibration amplitude in different local areas within the same large area, adapting to the different physiotherapy intensity requirements of local parts.

[0010] Each inner shell 202 contains a sliding plate 20, which is fixed to the top side of the top block 15 of the drive shaft 12 and driven shaft 13 within the inner shell 202. Its core function is to receive the pressing force of the top block 15, converting the rotational motion of the top block into reciprocating linear motion, thus achieving effective power transmission. The sliding plate 20 is fixedly connected to the inner shell 202 on both sides by return springs 21. The return springs 21 ensure the sliding plate 20 returns to its original position quickly, while also buffering the impact of the pressing force, making the amplitude transmission gentler and avoiding discomfort caused by hard impacts. This ensures the sliding plate 20 can perform stable and smooth reciprocating motion, preventing problems such as jamming or deviation during movement. Top rods 22 are evenly arranged on the top side of the sliding plate 20. Their function is to ensure that the vibration force is evenly transmitted to the local area, ensuring the uniformity of local physiotherapy. The top rods 22 are precisely matched with the subsequent vibration unit 31, transmitting the reciprocating motion of the sliding plate 20 to the vibration unit 31, driving the vibration unit 31 to generate high-frequency vibration.

[0011] Mounting slots 30 are evenly provided on the top side of each inner shell 202 for fixing the vibration unit 31. The vibration unit 31 is the core component for realizing the physiotherapy function. It includes an outer cylinder 32, which serves as the external support structure for the vibration unit 31. A slide rod 33 parallel to the central axis of the outer cylinder 32 is slidably arranged inside the outer cylinder 32. A top plate 34 is fixed on the top side of the slide rod 33. The top plate 34 contacts the human body through the outer shell 201 to transmit vibration to the human body and achieve the physiotherapy effect. Its beneficial effect is that the sliding cooperation between the slide rod 33 and the outer cylinder 32 ensures the accuracy of the vibration direction, avoids vibration deviation, and improves the accuracy of physiotherapy.

[0012] A vibration spring 35 and an inner slider 36 are fixed sequentially on the bottom side of the top plate 34. The inner slider 36 is slidably disposed inside the outer cylinder 32 and corresponds to the top rod 22. Its core beneficial effect is that the inner slider 36, in conjunction with the top rod 22, transmits the vibration amplitude of the slide plate 20 to the vibration spring 35. After being flexibly buffered by the vibration spring 35, the vibration is transmitted to the top plate 34, making the vibration gentler and improving the comfort of the physiotherapy. When the top rod 22 moves up and down under the drive of the slide plate 20, it pushes the inner slider 36 to slide up and down inside the outer cylinder 32. The inner slider 36, through the vibration spring 35, drives the top plate 34 to vibrate up and down. The vibration spring 35 not only buffers the vibration impact but also enhances the continuity and stability of the vibration, ensuring the therapeutic effect. Simultaneously, in conjunction with the limiting structure, it enables precise control of the vibration amplitude.

[0013] In a preferred embodiment, the length ratio of the long axis end H151 to the short axis end h152 of the top block 15 is defined, specifying that the length of the long axis end H151 is 1.1-1.3 times that of the short axis end h152. The core beneficial effect is that this asymmetrical proportional design enables precise mechanical adjustment of the vibration amplitude, ensuring that the top block 15 generates a stable and appropriate eccentric driving force during high-speed rotation. This, in turn, drives the slide plate 20 and the vibration unit 31 to generate high-frequency vibrations that meet the needs of physiotherapy, while also providing a basis for differentiating the vibration amplitude in different local areas within the same structural unit 200.

[0014] Core working principle: When the top block 15 rotates synchronously with the driving shaft 12 and the driven shaft 13, its long shaft end H151 and short shaft end h152 act sequentially on the slide plate 20: the long shaft end H151 pushes the slide plate 20 to the highest point of its stroke, while the short shaft end h152 corresponds to the lowest point of the slide plate 20's stroke. The difference in length between the two directly determines the reciprocating stroke of the slide plate 20, which is the vibration amplitude of the vibration unit 31. The motion process can be broken down as follows: Long shaft end H151 contact stage: The long shaft end H151 pushes the slide plate 20 to the highest point, and the return spring 21 is compressed; Transition stage: The long shaft end H151 slides away, the top block 15 and the slide plate 20 briefly separate, and the slide plate 20 falls back under the action of the spring; Short shaft end h152 contact stage: The short shaft end h152 pushes the slide plate 20 to the lowest point, completing one cycle.

[0015] The length ratio of the long shaft end H151 to the short shaft end h152 directly affects the massage intensity and equipment performance: the larger the ratio, the greater the length difference, the wider the reciprocating stroke of the slide plate 20, the stronger the vibration amplitude, and the greater the massage intensity; the smaller the ratio, the smaller the length difference, and the gentler the vibration amplitude.

[0016] To balance the therapeutic effect and the lifespan of the equipment, the ratio of the long shaft end H151 to the short shaft end h152 needs to be controlled within the range of 1.1 to 1.3 times. If the ratio is less than 1.1 times, the eccentricity is too small, and the driving force generated when the top block 15 rotates is insufficient, which will result in the reciprocating motion amplitude of the slide plate 20 being too small and the vibration intensity of the vibration unit 31 being too weak, thus failing to achieve the ideal deep therapeutic effect. If the ratio is greater than 1.3 times, the eccentricity is too large, and the driving force of the top block 15 is too strong, which will cause the reciprocating motion amplitude of the slide plate 20 to be too large and the speed to be too fast. This will not only aggravate the wear of components such as the return spring 21 and the top rod 22, reducing the lifespan of the equipment, but also cause excessive vibration, affecting the comfort of the human body during the therapeutic process, and even causing physical discomfort.

[0017] By limiting the length ratio of the long shaft end H151 to the short shaft end h152 to 1.1-1.3 times, it is possible to ensure the stability of equipment operation and the comfort of human physiotherapy while ensuring that the vibration intensity meets the physiotherapy requirements, thus achieving a balance between physiotherapy effect, equipment lifespan, and user experience. At the same time, this ratio range provides a reasonable range for setting different ratios for the top blocks 15 of different inner shells 202 within the same structural unit 200, which can flexibly realize the difference in vibration amplitude in different local areas within the same large area. Furthermore, all inner shells 202 within the same structural unit 200 share a single drive motor, and the vibration frequency of each local area remains consistent, with only the amplitude differing, ensuring massage synergy.

[0018] In a preferred embodiment, the structure of the mounting groove 30 is further defined, specifically that a limiting step 37 is provided within the mounting groove 30, and the limiting step 37 is located on the top side of the inner slider 36. The core beneficial effect of the limiting step 37 is to precisely limit the inner slider 36 of the vibration unit 31, restrict the sliding stroke of the inner slider 36, prevent excessive displacement of the inner slider 36 during up and down sliding, ensure that the vibration amplitude of each local area is precisely controllable, avoid excessive vibration causing discomfort to the human body, and at the same time ensure the normal operation of the vibration unit 31.

[0019] During the operation of the vibration unit 31, the inner slider 36 slides up and down inside the outer cylinder 32 under the push of the top rod 22 and the action of the vibration spring 35. If there is no limiting step 37, the inner slider 36 may be excessively displaced upward due to excessive vibration amplitude, causing the slide rod 33 and the top plate 34 to exceed the range of the outer cylinder 32, resulting in structural damage to the vibration unit 31. At the same time, excessive displacement may also cause the vibration spring 35 to be excessively stretched or compressed, reducing the elastic performance and service life of the vibration spring 35, affecting the vibration stability of the vibration unit 31, and thus affecting the consistency and accuracy of the physiotherapy effect.

[0020] The limiting step 37 is located on the top side of the inner slider 36. When the inner slider 36 slides upward to a certain position, the top of the inner slider 36 will contact the limiting step 37. The limiting step 37 will generate a downward blocking force on the inner slider 36, restricting the inner slider 36 from continuing to move upward, thereby ensuring that the sliding range of the inner slider 36 is always within a reasonable range. Its core beneficial effect is to ensure the structural integrity and operational stability of the vibration unit 31, ensure that the vibration amplitude of each local area is accurately controllable, and extend the service life of components such as the vibration spring 35, maintaining the long-term stable operation of the equipment.

[0021] In a preferred embodiment, the installation method of the return spring 21 is further specified, specifying that the return spring 21 is disposed on both sides of the slide plate 20 and fixed to the side wall of the inner housing 202 by the limiting plate 23. The core beneficial effect of this installation method is to ensure the firm fixation of the return spring 21, while ensuring that the return force of the return spring 21 on the slide plate 20 is uniform and stable, ensuring the smooth reciprocating motion of the slide plate 20, thereby ensuring the uniformity of vibration force transmission and providing a guarantee for precise local physiotherapy.

[0022] As a key reset component for the reciprocating motion of the slide plate 20, the installation stability of the return spring 21 directly affects the motion state of the slide plate 20. Placing the return spring 21 on both sides of the slide plate 20 ensures that the reset force on both sides is symmetrical during its up-and-down movement. This prevents the slide plate 20 from shifting or jamming due to uneven force, ensuring stable reciprocating motion of the slide plate 20 in the vertical direction. This, in turn, ensures uniform driving force of the top rod 22 on the vibration unit 31, improves the vibration stability of the vibration unit 31, ensures the uniformity of local physiotherapy, and assists in the smooth transmission of vibration amplitude.

[0023] The limiting plate 23 further secures the end of the return spring 21. Its core benefit is to prevent the return spring 21 from loosening, falling off, or shifting during operation, ensuring that the return spring 21 is always in the preset installation position and continuously provides a stable return force to the slide plate 20, thus ensuring the stability of the slide plate 20's movement. At the same time, the limiting plate 23 can also limit the extension and contraction range of the return spring 21 to a certain extent, preventing the return spring 21 from being overstretched or compressed, extending the service life of the return spring 21, reducing the maintenance cost of the equipment, and ensuring the stable cushioning effect of the return spring 21, avoiding hard impacts from affecting the comfort of physiotherapy.

[0024] In a preferred embodiment, the number and layout of the top blocks 15 and the sliding plates 20 are further defined. Specifically, at least four top blocks 15 are driven to the outside of both the drive shaft 12 and the driven shaft 13, and each top block 15 has a sliding plate 20 on its top. A gap of 2-5 mm is left between adjacent sliding plates 20. The core benefit of this design is to improve the vibration uniformity and coverage of the device, while avoiding interference between the sliding plates 20 within the same inner housing 202 during vibration, ensuring vibration independence, and further guaranteeing the accuracy and stability of local physiotherapy.

[0025] At least four top blocks 15 are provided on the outer side of the active shaft 12 and the driven shaft 13, and each top block 15 corresponds to a sliding plate 20. The beneficial effect is that the sliding plate 20 can achieve multi-point synchronous reciprocating motion under the drive of the active shaft 12 and the driven shaft 13, and then drive multiple vibration units 31 to vibrate synchronously through the top rod 22, expanding the vibration coverage range, so that multiple parts of the human body can receive uniform vibration therapy at the same time, improving the efficiency and effect of the therapy; at the same time, multi-point drive can make the vibration force distribution more uniform, avoid excessive or insufficient local force, and improve the comfort of the therapy.

[0026] A 2-5mm gap is left between adjacent slide plates 20. The core purpose and beneficial effect of this is to prevent the slide plates 20 from colliding and rubbing against each other during their reciprocating motion, thus preventing damage and extending their service life. Simultaneously, it avoids uneven vibration caused by mutual interference between the slide plates 20, ensuring that each slide plate 20 moves independently and stably, thereby guaranteeing the independence and precision of vibration in each local area. The gap also provides sufficient space for the movement of the slide plates 20, ensuring smooth reciprocating motion without jamming or other problems, further guaranteeing the stability and reliability of the equipment operation.

[0027] In addition, the arrangement of at least four top blocks 15 can also distribute the force on the drive shaft 12 and the driven shaft 13. Its beneficial effect is to avoid excessive force on a single top block 15, which would cause wear on the parts, extend the service life of the drive shaft 12, the driven shaft 13 and the top blocks 15, and reduce the maintenance cost of the equipment. At the same time, multi-point pressure can make the slide plate 20 more evenly stressed, avoid local deformation of the slide plate 20, ensure the stability of the movement of the slide plate 20, and thus ensure the accuracy of vibration amplitude transmission.

[0028] In a preferred embodiment, an air duct 40 and a vent 41 are added, specifying that the high-frequency vibration therapy bed also includes an air duct 40. The air duct 40 passes sequentially through the outer shell 201 and three inner shells 202, and vents 41 are provided on the top side of the slide plate 20, the inner shells 202, and the outer shell 201. The core beneficial effect of this structural design is to achieve ventilation and heat dissipation inside the device, while also enabling ventilation and heat therapy in conjunction with an external heat source. This works synergistically with the vibration function to enhance the therapeutic effect and improve the comfort of the patient during therapy.

[0029] During operation, the drive motor 11, transmission components, and vibration unit 31 generate a large amount of heat. If this heat cannot be dissipated in time, the internal temperature of the equipment will rise, affecting the performance of each component, reducing the equipment's lifespan, and potentially causing discomfort to the human body due to excessive heat. The air duct 40 passes through the outer shell 201 and the three inner shells 202 in sequence, forming a continuous ventilation channel. Its beneficial effect is that it allows cool outside air to enter the equipment through the air duct 40, carrying away the heat generated during operation, achieving ventilation and heat dissipation, ensuring that the internal temperature of the equipment remains within a reasonable range, and guaranteeing stable operation. At the same time, the ventilation channel provides a foundation for subsequent ventilation and hyperthermia, facilitating the circulation of gas from external heat sources.

[0030] Ventilation holes 41 are provided on the top sides of the slide plate 20, inner shell 202, and outer shell 201. The benefits are reflected in two aspects: First, it allows hot air inside the equipment to be discharged through the ventilation holes 41, forming convection with the air duct 40, improving ventilation and heat dissipation, and ensuring stable operation of the equipment. Second, the ventilation holes 41 allow air inside the equipment to circulate with outside air, preventing air pollution inside the equipment due to sealing. At the same time, when a person is lying on the physiotherapy bed, the ventilation holes 41 can promote air circulation between the person and the bed surface, reducing stuffiness and improving the comfort of the physiotherapy. In addition, when used with an external heat source, the ventilation holes 41 can achieve uniform distribution of hot airflow, realizing the synergy of ventilation heat therapy and vibration physiotherapy, further improving the physiotherapy effect.

[0031] In addition, the air duct 40 and the vent 41 can effectively prevent the parts inside the equipment from rusting and being damaged due to moisture, extend the service life of the equipment, and reduce the maintenance cost of the equipment. At the same time, the circulation of air can also reduce the accumulation of dust inside the equipment, making it easier to clean and maintain the equipment, and further improving the stability and service life of the equipment.

[0032] In a preferred embodiment, the structure of the top block 15 is further optimized by specifying that the top block 15 also includes a swivel blade 153, which is disposed between the long axis end H151 and the short axis end h152, and its length is less than the length of the short axis end h152. The core beneficial effect of the swivel blade 153 is to further improve the ventilation and heat dissipation effect and the uniformity of heat therapy of the device, while also helping to enhance the uniformity of vibration and optimize the physiotherapy experience.

[0033] During operation, the drive shaft 12 and driven shaft 13 drive the top block 15 to rotate at high speed. The swivel blades 153 on the top block 15 rotate at high speed along with the top block 15, generating airflow. The core beneficial effect is that this airflow can cooperate with the ventilation channel formed by the air guide pipe 40 and the vent 41 to accelerate the flow of air inside the equipment, further improve the ventilation and heat dissipation effect, ensure the stability of the internal temperature of the equipment, and avoid the impact of heat accumulation on the performance and service life of the equipment. At the same time, when used in conjunction with an external heat source to achieve ventilation and hyperthermia, the airflow generated by the swivel blades 153 can accelerate the circulation of hot airflow, so that the hot airflow is evenly distributed in all areas of the bed surface, improve the uniformity of hyperthermia, and achieve synergistic effects of hyperthermia and vibration therapy.

[0034] The length of the blade 153 is less than the length of the short shaft end h152. This design prevents the blade 153 from colliding or rubbing against components such as the inner housing 202 and the slide plate 20 during rotation, ensuring the safety and stability of the equipment operation, preventing component damage, and extending the equipment's service life. Simultaneously, the airflow generated by the blade 153 during rotation also assists the reciprocating motion of the slide plate 20, reducing resistance during its movement and making it smoother. This, in turn, improves the uniformity of vibration in the vibration unit 31, enhances the therapeutic effect, and ensures uniform vibration force transmission in all localized areas.

[0035] In a preferred embodiment, a buffer mechanism 50 is added. Specifically, a buffer mechanism 50 is provided on the bottom side of the support 10. The buffer mechanism 50 has arc-shaped structures 51 on both sides, one end of which is fixedly connected to the top side of the base plate 101 of the support 10, and the other end is fixedly connected to a wavy line structure 52. The wavy line structure 52 is located on the bottom side of the base plate 101. Multiple first buffer springs 53 are provided between the top side of the base plate 101 and the arc-shaped structure 51, and second buffer springs 54 are provided between the bottom side of the base plate 101 and the wavy line structure 52. The core beneficial effect of this buffer mechanism 50 design is that, through the double buffer structure, it effectively absorbs the vibration and impact forces generated by the drive motor 11 and the transmission system, preventing vibration from being transmitted to the bottom frame 100, improving the stability of equipment operation and the comfort of human physiotherapy, while also reducing equipment noise.

[0036] During operation, the movement of the drive motor 11, transmission components, and vibration unit 31 generates vibrations and impacts. These vibrations and impacts are transmitted to the support 10. Without buffering, this not only causes noise and affects the user experience, but also impacts the connection stability of various components, accelerates wear, and reduces the lifespan of the equipment. Furthermore, the vibrations are transmitted to the human body, affecting the comfort of the therapy. The buffer mechanism 50 effectively solves these problems, achieving effective absorption of vibration and impact forces.

[0037] The buffer mechanism 50 has arc-shaped structures 51 on both sides. The arc-shaped structure 51 has good elastic deformation capability. Its beneficial effect is that it can undergo elastic deformation when subjected to vibration and impact force, initially buffering vibration and impact force and weakening vibration intensity. The wave-shaped structure 52 has good toughness and buffering performance. Its beneficial effect is that it can further absorb and buffer vibration and impact force, reduce the transmission of vibration and impact force to the bottom frame 100 and structural unit 200, avoid overall equipment vibration, improve the stability of equipment operation, and reduce equipment operating noise.

[0038] Multiple first buffer springs 53, arranged between the top side of the base plate 101 and the arc-shaped structure 51, and a second buffer spring 54, arranged between the bottom side of the base plate 101 and the wavy line structure 52, can cooperate with the arc-shaped structure 51 and the wavy line structure 52 to form a multi-layer buffer structure. The core beneficial effect is to further enhance the buffering effect and achieve double buffering. The first buffer springs 53 are mainly used to buffer the vibration and impact force transmitted from the support 10 to the arc-shaped structure 51, while the second buffer springs 54 are mainly used to buffer the vibration and impact force transmitted from the arc-shaped structure 51 to the base plate 101 through the wavy line structure 52. Through multi-layer buffering, the vibration and impact force generated during equipment operation can be effectively reduced, equipment noise can be decreased, the stability of equipment operation and the service life of components can be improved, and vibration transmission to the bottom frame 100 can be prevented, ensuring the overall stability of the equipment.

[0039] Meanwhile, the buffer mechanism 50 can also reduce the transmission of vibration and impact to the human body. Its beneficial effect is to make the vibration felt by the human body more gentle, improve the comfort of human physiotherapy, avoid discomfort caused by violent vibration, and further optimize the physiotherapy experience. In addition, the buffer mechanism 50 can also reduce the impact of vibration on the connection parts of various components, prevent loosening of connections, extend the service life of the equipment, and reduce equipment maintenance costs.

[0040] III. Beneficial Effects Compared with the prior art, the present invention, through the above technical solution, has the following beneficial effects: 1. Precise and cost-optimized zoned adjustment: The dual-layer zoned design of "3 structural units (3 drive motors) + 3 inner shells for each structural unit" enables precise vibration control in each zone. The 3 structural units meet the large-scale independent adjustment needs of the head, torso, and lower limbs. The vibration frequency and amplitude of the three zones can be adjusted independently. Local areas within the same large zone can achieve vibration amplitude differentiation through top block ratio differences, fully adapting to the personalized physiotherapy needs of different parts of the human body. 2. Within the same structural unit, belt drives between the drive shaft and the driven shaft ensure synchronous vibration of the three inner shells, avoiding misalignment of vibrations in local areas; the drive shaft is located in a single inner shell, and the driven shaft is located in the other two inner shells, with cross-shell power synchronization achieved through belts.

[0041] The top block adopts an asymmetrical design with long and short shaft ends, and multiple top blocks on the drive and driven shafts are synchronously driven to give the slide plate uniform and stable reciprocating power. The vibration force is transmitted step by step through the top rod → inner slider → vibration spring → top plate. The vibration spring and the outer cylinder sliding structure effectively absorb the impact and avoid rigid contact. The top plate makes soft contact with the human body through the outer shell, which solves the problems of concentrated vibration and strong impact in the existing technology. There is no pressure or discomfort after long-term use.

[0042] 3. Enhanced structural stability and durability: The slide plates are fixed to the limit plates on both sides by return springs, ensuring rapid reset response and uniform force distribution, reducing friction and wear at the sliding connection; the composite buffer mechanism (arc structure + wave line structure + double buffer spring) on ​​the bottom side of the bracket effectively absorbs high-frequency vibration impact, reducing structural resonance and component wear; reasonable gaps are reserved between adjacent slide plates to avoid vibration interference, and the synchronous transmission structure within the same structural unit reduces transmission errors, further improving the stability of equipment operation and extending service life. 4. Excellent noise control: The composite buffer mechanism absorbs vibration impact and reduces structural resonance noise; vibration transmission is buffered by flexible components to avoid rigid collisions; synchronous transmission within the same structural unit uses synchronous belts, resulting in low transmission friction and low noise; the connection between each component is transitioned through an elastic structure, further reducing transmission noise, and the equipment operating noise is lower than that of existing technologies. 5. Highly expandable functionality and compact structure: The design of the air duct and ventilation port allows the equipment to achieve the core vibration function while being compatible with ventilation and hyperthermia functions. The swirl structure of the top block accelerates gas circulation and enhances the synergistic effect of hyperthermia and vibration. Attached Figure Description

[0043] Other features and advantages of the invention will become clear from the following description of exemplary embodiments, which is incorporated in and constitutes a part of this specification. The accompanying drawings, which illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0044] In the picture: Figure 1 A schematic diagram of the structure of the high-frequency vibration physiotherapy bed of the present invention; Figure 2 A schematic diagram of the long axis end H151 of the high-frequency vibration physiotherapy bed of the present invention; Figure 3 The high-frequency vibration physiotherapy bed of this invention Figure 2 Enlarged view of position A; Figure 4 A schematic diagram of the transition stage of the high-frequency vibration physiotherapy bed of the present invention; Figure 5 The high-frequency vibration physiotherapy bed of this invention Figure 4 Enlarged view of position B; Figure 6 A schematic diagram of the short axis end h152 of the high-frequency vibration physiotherapy bed of the present invention; Figure 7 The high-frequency vibration physiotherapy bed of this invention Figure 6 Enlarged view of position C; Figure 8 A schematic diagram of the top block of the high-frequency vibration physiotherapy bed of the present invention; Figure 9 A schematic diagram of the buffer mechanism of the high-frequency vibration physiotherapy bed of the present invention; 100. Bottom frame; 200. Structural unit; 201. Outer shell; 202. Inner shell; 10. Bracket; 11. Drive motor; 12. Drive shaft; 13. Driven shaft; 14. Belt; 15. Top block; 151. Long shaft end H; 152. Short shaft end h; 153. Rotary blade; 20. Slide plate; 21. Return spring; 22. Top rod; 23. Limiting plate; 30. Mounting groove; 31. Vibration unit; 32. Outer cylinder; 33. Slide rod; 34. Top plate; 35. Vibration spring; 36. Inner slider; 37. Limiting step; 40. Air duct; 41. Vent hole; 50. Buffer mechanism; 51. Arc structure; 52. Wavy line structure; 53. First buffer spring; 54. Second buffer spring; 101. Base plate. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0046] The high-frequency vibration therapy bed will be described in detail below with reference to the accompanying drawings and embodiments. Example

[0047] A high-frequency vibration physiotherapy bed includes a bottom frame 100 and three structural units 200. All structural units 200 are fixed to the top side of the bottom frame 100 by bolts. Elastic washers are provided at the bolt connections to enhance the stability of the fixation and at the same time reduce the transmission of vibration.

[0048] Each structural unit 200 includes an outer shell 201, which is fixed to the top side of the bottom frame 100. Three inner shells 202 are arranged in parallel inside any outer shell 201. The inner shells 202 are fixed to the outer shell 201 by bolts, and a buffer gap is left between them to avoid rigid collision between the inner shells 202 and the outer shell 201 when the inner shells 202 vibrate.

[0049] Each inner housing 202 has a bracket 10 fixedly installed inside, arranged symmetrically. The middle bracket 10 is fixed with a drive motor 11 by bolts. The output end of the drive motor 11 is connected to the drive shaft 12 through a coupling to ensure lossless power transmission. The two side brackets 10 are rotatably mounted with driven shafts 13 through bearings. The drive shaft 12 and the driven shaft 13 are connected by a synchronous belt 14. The tension of the belt 14 can be finely adjusted by adjusting the position of the bracket 10 to ensure that the drive shaft 12 and the driven shaft 13 rotate synchronously.

[0050] Both the drive shaft 12 and the driven shaft 13 are fixedly equipped with top blocks 15 on their outer sides. The top blocks 15 adopt an eccentric structure, including a long shaft end H151 and a short shaft end h152. The length of the long shaft end H151 is 1.2 times that of the short shaft end h152, which is within the optimal range of 1.1-1.3 times. This ensures that the top blocks 15 generate a stable and appropriate eccentric driving force when rotating, which meets the requirements of physiotherapy vibration intensity while avoiding excessive vibration.

[0051] Each inner housing 202 is equipped with a sliding plate 20, which is horizontally positioned on the top side of the top block 15. The bottom side of the sliding plate 20 is tightly fitted to the top of all the top blocks 15. The dimensions of the sliding plate 20 are adapted to the internal lateral dimensions of the inner housing 202, and a 1-2mm gap is left between its edge and the inner wall of the inner housing 202 to ensure smooth up-and-down reciprocating movement without friction interference. Symmetrical return springs 21 are arranged on both sides of the sliding plate 20. The other end of the return spring 21 is fixed to the side wall of the inner housing 202 by a limiting plate 23. The limiting plate 23 is bolted to the side wall of the inner housing 202 to ensure that the return spring 21 is securely installed and subjected to uniform force.

[0052] The top side of the skateboard 20 adopts a flat design, and the top rods 22 are evenly arranged in an array on the top side of the skateboard 20. The top rods 22 are welded and fixed to the skateboard 20 to avoid loosening of the connection due to long-term vibration.

[0053] An installation groove 30 is evenly provided on the top side of any inner shell 202. A vibration unit 31 is fixedly installed in the installation groove 30. The vibration unit 31 includes an outer cylinder 32, which is tightly fitted to the inner wall of the installation groove 30. A slide rod 33 parallel to the central axis of the outer cylinder 32 is slidably installed inside the outer cylinder 32. A top plate 34 is fixedly installed on the top side of the slide rod 33. A vibration spring 35 and an inner slider 36 are fixedly installed on the bottom side of the top plate 34 in sequence. The inner slider 36 is slidably installed inside the outer cylinder 32 and is matched with the top rod 22 one by one. The top of the top rod 22 is matched with the center of the bottom side of the inner slider 36 to ensure accurate transmission of vibration force.

[0054] A limiting step 37 is provided in the mounting groove 30. The limiting step 37 is located on the top side of the inner slider 36 and is integrally formed with the outer cylinder 32. It can effectively limit the sliding stroke of the inner slider 36, prevent the inner slider 36 from excessively displacing upward, avoid the vibration spring 35 from being excessively stretched or compressed, and at the same time ensure that the vibration amplitude of the top plate 34 is accurate and controllable.

[0055] During operation, the drive motor 11 drives the active shaft 12 to rotate, and the active shaft 12 drives the driven shaft 13 to rotate synchronously through the belt 14. The top block 15 rotates at high speed with the active shaft 12 and the driven shaft 13. Its long shaft end H151 and short shaft end h152 alternately press against the slide plate 20. Under the action of the top block 15 and the return spring 21, the slide plate 20 moves up and down. The slide plate 20 drives the top rod 22 to move synchronously. The top rod 22 pushes the inner slider 36 to slide inside the outer cylinder 32. The inner slider 36 drives the top plate 34 to vibrate up and down through the vibration spring 35. Finally, the top plate 34 transmits the gentle high-frequency vibration to the top side of the outer shell 201 and then to the human body to achieve precise physiotherapy. Example

[0056] Based on Example 1, the quantity and layout of the top block 15 and the sliding plate 20 are optimized, and ventilation-related structures are added. The specific improvements are as follows: Four top blocks 15 are driven on the outer sides of both the drive shaft 12 and the driven shaft 13. The four top blocks 15 are evenly distributed on the outer sides of the drive shaft 12 and the driven shaft 13. A sliding plate 20 is provided on the top of each top block 15. A 3mm gap is left between two adjacent sliding plates 20. This gap can effectively prevent the sliding plates 20 from colliding and rubbing against each other when they move up and down, ensuring that each sliding plate 20 moves independently and stably, while providing sufficient space for the movement of the sliding plates 20 and avoiding jamming.

[0057] The high-frequency vibration physiotherapy bed also includes an air duct 40, which is a flexible pipe that passes sequentially through the outer shell 201 and the three inner shells 202. The penetration points of the air duct 40 into the outer shell 201 and the inner shells 202 are sealed with seals to prevent dust and impurities from entering the pipe. One end of the air duct 40 extends to the outside of the physiotherapy bed and can be connected to an external air source, while the other end extends into the interior of the inner shell 202, communicating with the internal space of the inner shell 202 to form a through ventilation channel.

[0058] Ventilation holes 41 are provided on the top sides of the slide plate 20, the inner shell 202, and the outer shell 201. The ventilation holes 41 are evenly distributed in an array. The ventilation holes 41 on the slide plate 20 are aligned vertically with the ventilation holes 41 on the inner shell 202, and the ventilation holes 41 on the inner shell 202 are aligned vertically with the ventilation holes 41 on the outer shell 201, forming a complete ventilation circuit to ensure smooth airflow inside the equipment.

[0059] The top block 15 also includes a rotor 153, which is integrally formed between the long shaft end H151 and the short shaft end h152. The length of the rotor 153 is less than the length of the short shaft end h152 to avoid collisions between the rotor 153 and components such as the inner housing 202 and the slide plate 20 when the rotor 153 rotates. The rotor 153 has an arc-shaped design, which can generate airflow when rotating synchronously with the top block 15, accelerating the air circulation inside the equipment.

[0060] The ventilation process in this embodiment is as follows: external cold air or hot airflow enters the inner shell 202 through the air duct 40. When the top block 15 rotates, it drives the swivel blade 153 to rotate at high speed, generating airflow and accelerating the airflow inside the inner shell 202. The airflow flows upward through the vent holes 41 on the slide plate 20, passes through the vent holes 41 on the inner shell 202, and finally exits from the vent holes 41 on the top side of the outer shell 201, forming a complete ventilation cycle. This process not only achieves ventilation and heat dissipation inside the equipment, preventing damage to components due to heat accumulation, but also can be combined with an external heat source to achieve ventilation and heat therapy, working synergistically with vibration therapy to enhance the therapeutic effect. At the same time, the airflow circulation can promote air circulation between the human body and the bed surface, reducing stuffiness and improving the comfort of the human body during therapy. Example

[0061] Based on Embodiment 1 or Embodiment 2, a buffer mechanism 50 is provided on the bottom side of the support 10. The buffer mechanism 50 is used to absorb the vibration and impact force generated by the drive motor 11 and the transmission system, reduce equipment noise, and improve operational stability and therapeutic comfort. The specific implementation is as follows: The buffer mechanism 50 has arc-shaped structures 51 on both sides. The arc-shaped structures 51 are made of elastic metal and have good elastic deformation capacity, which can effectively buffer vibration impact. One end of the arc-shaped structure 51 is fixedly connected to the top side of the base plate 101 of the support 10 by bolts. An elastic gasket is set at the connection to enhance the connection stability. The other end of the arc-shaped structure 51 is welded and fixed to the wavy line structure 52. The wavy line structure 52 is made of metal with good toughness and is set on the bottom side of the base plate 101, arranged parallel to the base plate 101.

[0062] Four first buffer springs 53 are evenly arranged between the top side of the base plate 101 and the arc-shaped structure 51. The four first buffer springs 53 are arranged symmetrically. One end of the first buffer spring 53 is welded and fixed to the top side of the base plate 101, and the other end is welded and fixed to the inner side of the arc-shaped structure 51. Three second buffer springs 54 are evenly arranged between the bottom side of the base plate 101 and the wavy line structure 52. The three second buffer springs 54 correspond vertically to the first buffer springs 53. One end of the second buffer spring 54 is welded and fixed to the bottom side of the base plate 101, and the other end is welded and fixed to the top side of the wavy line structure 52.

[0063] The working process of the buffer mechanism 50 is as follows: When the equipment is working, the vibration and impact force generated by the drive motor 11, the drive shaft 12, the driven shaft 13 and other transmission components is transmitted to the support 10. The support 10 transmits the vibration and impact force to the arc-shaped structure 51 of the buffer mechanism 50. After being subjected to the impact force, the arc-shaped structure 51 undergoes elastic deformation, initially absorbing and weakening the vibration and impact force. At the same time, the first buffer spring 53 is compressed, further buffering the vibration and impact force. The remaining vibration and impact force is transmitted to the wavy structure 52 through the arc-shaped structure 51. The wavy structure 52 undergoes slight deformation, further absorbing the vibration and impact force. At the same time, the second buffer spring 54 is compressed, buffering the vibration and impact force again. Through the multiple buffering of the arc-shaped structure 51, the wavy structure 52 and the double buffer springs, the vibration and impact force is effectively weakened, avoiding transmission to the bottom frame 100, realizing the stable operation of the equipment, reducing the operating noise of the equipment, making the vibration felt by the human body more gentle, and improving the comfort of physiotherapy.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes that element.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. The present invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-frequency vibration physiotherapy bed, comprising a bottom frame (100) and three structural units (200), characterized in that, Any of the structural units (200) is fixed to the top side of the bottom frame (100); The structural unit (200) includes an outer shell (201) disposed on the top side of the bottom frame (100), and three inner shells (202) are disposed in parallel within any outer shell (201). A bracket (10) is provided inside any inner housing (202), and a drive motor (11) is fixed on the middle bracket (10). The output end of the drive motor (11) is equipped with a drive shaft (12), and a driven shaft (13) is provided on the brackets (10) on both sides. The drive shaft (12) and the driven shaft (13) are driven by a belt (14), and a top block (15) is provided on the outside of the drive shaft (12) and the driven shaft (13). The top block (15) includes a long shaft end H (151) and a short shaft end h (152). A slide plate (20) is provided inside any inner shell (202). The slide plate (20) is fixed to the top side of the top block (15) and fixed on both sides by return springs (21). Top rods (22) are evenly provided on the top side of the slide plate (20). A mounting groove (30) is uniformly provided on the top side of any inner shell (202), and a vibration unit (31) is fixed in the mounting groove (30). The vibration unit (31) includes an outer cylinder (32), and a slide rod (33) parallel to the central axis of the outer cylinder (32) is slidably provided in the outer cylinder (32). A top plate (34) is fixed on the top side of the slide rod (33), and a vibration spring (35) and an inner slider (36) are fixed on the bottom side of the top plate (34) in sequence. The inner slider (36) is slidably provided in the outer cylinder (32) and matches and corresponds to the top rod (22).

2. The high-frequency vibration physiotherapy bed according to claim 1, characterized in that, The length of the long axis end H (151) is 1.1-1.3 times that of the short axis end h (152).

3. The high-frequency vibration physiotherapy bed according to claim 1, characterized in that, A limiting step (37) is provided in the mounting groove (30), and the limiting step (37) is opened on the top side of the inner slider (36).

4. The high-frequency vibration physiotherapy bed according to claim 1, characterized in that, The reset spring (21) is set on both sides of the slide plate (20) and fixed to the side wall of the inner shell (202) by the limiting plate (23).

5. The high-frequency vibration physiotherapy bed according to claim 1, characterized in that, At least four top blocks (15) are driven on the outer side of both the drive shaft (12) and the driven shaft (13). Each top block (15) is equipped with a sliding plate (20), and there is a gap between adjacent sliding plates (20).

6. The high-frequency vibration physiotherapy bed according to claim 5, characterized in that, The high-frequency vibration physiotherapy bed also includes an air duct (40), which passes through the outer shell (201) and three inner shells (202) in sequence; and ventilation holes (41) are provided on the top side of the slide plate (20), inner shell (202), outer shell (201).

7. The high-frequency vibration physiotherapy bed according to claim 6, characterized in that, The top block (15) also includes a swivel blade (153), which is disposed between the long shaft end H (151) and the short shaft end h (152), and its length is less than the length of the short shaft end h (152).

8. The high-frequency vibration physiotherapy bed according to claim 1, characterized in that, A buffer mechanism (50) is provided on the bottom side of the support (10). The buffer mechanism (50) has an arc-shaped structure (51) on both sides and a wave-shaped structure (52) on the bottom side in the middle. The wave-shaped structure (52) is provided on the bottom side of the base plate (101). The two ends of the arc-shaped structure (51) are fixedly connected to the top side of the base plate (101) of the support (10) and the wave-shaped structure (52) respectively. Multiple first buffer springs (53) are provided between the top side of the base plate (101) and the arc-shaped structure (51), and a second buffer spring (54) is provided between the bottom side of the base plate (101) and the wave-shaped structure (52).

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